docs/0000775000175000017500000000000014002404367011636 5ustar mclasenmclasendocs/xml/0000775000175000017500000000000014002404352012430 5ustar mclasenmclasendocs/xml/gtkdocentities.ent0000664000175000017500000000054014002404342016156 0ustar mclasenmclasen docs/xml/main.xml0000664000175000017500000021577114002404352014113 0ustar mclasenmclasen ]> Rendering 3 PANGO Library Rendering Functions to run the rendering pipeline Functions GList * pango_itemize () GList * pango_itemize_with_base_dir () void pango_item_free () PangoItem * pango_item_copy () PangoItem * pango_item_new () PangoItem * pango_item_split () void pango_item_apply_attrs () GList * pango_reorder_items () void pango_break () void pango_get_log_attrs () void pango_find_paragraph_boundary () void pango_default_break () void pango_tailor_break () void pango_shape () void pango_shape_full () void pango_shape_with_flags () Types and Values structPangoItem structPangoAnalysis #definePANGO_ANALYSIS_FLAG_CENTERED_BASELINE #definePANGO_ANALYSIS_FLAG_IS_ELLIPSIS #definePANGO_ANALYSIS_FLAG_NEED_HYPHEN PangoLogAttr enumPangoShapeFlags Object Hierarchy GBoxed ╰── PangoItem GFlags ╰── PangoShapeFlags Description The Pango rendering pipeline takes a string of Unicode characters and converts it into glyphs. The functions described in this section accomplish various steps of this process. Functions pango_itemize () pango_itemize GList * pango_itemize (PangoContext *context, const char *text, int start_index, int length, PangoAttrList *attrs, PangoAttrIterator *cached_iter); Breaks a piece of text into segments with consistent directional level and shaping engine. Each byte of text will be contained in exactly one of the items in the returned list; the generated list of items will be in logical order (the start offsets of the items are ascending). cached_iter should be an iterator over attrs currently positioned at a range before or containing start_index ; cached_iter will be advanced to the range covering the position just after start_index + length . (i.e. if itemizing in a loop, just keep passing in the same cached_iter ). Parameters context a structure holding information that affects the itemization process. text the text to itemize. Must be valid UTF-8 start_index first byte in text to process length the number of bytes (not characters) to process after start_index . This must be >= 0. attrs the set of attributes that apply to text . cached_iter Cached attribute iterator, or NULL. [allow-none] Returns a GList of PangoItem structures. The items should be freed using pango_item_free() probably in combination with g_list_foreach(), and the list itself using g_list_free(). [transfer full][element-type Pango.Item] pango_itemize_with_base_dir () pango_itemize_with_base_dir GList * pango_itemize_with_base_dir (PangoContext *context, PangoDirection base_dir, const char *text, int start_index, int length, PangoAttrList *attrs, PangoAttrIterator *cached_iter); Like pango_itemize(), but the base direction to use when computing bidirectional levels (see pango_context_set_base_dir()), is specified explicitly rather than gotten from the PangoContext. Parameters context a structure holding information that affects the itemization process. base_dir base direction to use for bidirectional processing text the text to itemize. start_index first byte in text to process length the number of bytes (not characters) to process after start_index . This must be >= 0. attrs the set of attributes that apply to text . cached_iter Cached attribute iterator, or NULL. [allow-none] Returns a GList of PangoItem structures. The items should be freed using pango_item_free() probably in combination with g_list_foreach(), and the list itself using g_list_free(). [transfer full][element-type Pango.Item] Since: 1.4 pango_item_free () pango_item_free void pango_item_free (PangoItem *item); Free a PangoItem and all associated memory. Parameters item a PangoItem, may be NULL. [nullable] pango_item_copy () pango_item_copy PangoItem * pango_item_copy (PangoItem *item); Copy an existing PangoItem structure. Parameters item a PangoItem, may be NULL. [nullable] Returns the newly allocated PangoItem, which should be freed with pango_item_free(), or NULL if item was NULL. [nullable] pango_item_new () pango_item_new PangoItem * pango_item_new (void); Creates a new PangoItem structure initialized to default values. Returns the newly allocated PangoItem, which should be freed with pango_item_free(). pango_item_split () pango_item_split PangoItem * pango_item_split (PangoItem *orig, int split_index, int split_offset); Modifies orig to cover only the text after split_index , and returns a new item that covers the text before split_index that used to be in orig . You can think of split_index as the length of the returned item. split_index may not be 0, and it may not be greater than or equal to the length of orig (that is, there must be at least one byte assigned to each item, you can't create a zero-length item). split_offset is the length of the first item in chars, and must be provided because the text used to generate the item isn't available, so pango_item_split() can't count the char length of the split items itself. Parameters orig a PangoItem split_index byte index of position to split item, relative to the start of the item split_offset number of chars between start of orig and split_index Returns new item representing text before split_index , which should be freed with pango_item_free(). pango_item_apply_attrs () pango_item_apply_attrs void pango_item_apply_attrs (PangoItem *item, PangoAttrIterator *iter); Add attributes to a PangoItem. The idea is that you have attributes that don't affect itemization, such as font features, so you filter them out using pango_attr_list_filter(), itemize your text, then reapply the attributes to the resulting items using this function. The iter should be positioned before the range of the item, and will be advanced past it. This function is meant to be called in a loop over the items resulting from itemization, while passing the iter to each call. Parameters item a PangoItem iter a PangoAttrIterator Since: 1.44 pango_reorder_items () pango_reorder_items GList * pango_reorder_items (GList *logical_items); From a list of items in logical order and the associated directional levels, produce a list in visual order. The original list is unmodified. Parameters logical_items a GList of PangoItem in logical order. [element-type Pango.Item] Returns a GList of PangoItem structures in visual order. (Please open a bug if you use this function. It is not a particularly convenient interface, and the code is duplicated elsewhere in Pango for that reason.). [transfer full][element-type Pango.Item] pango_break () pango_break void pango_break (const gchar *text, int length, PangoAnalysis *analysis, PangoLogAttr *attrs, int attrs_len); pango_break has been deprecated since version 1.44 and should not be used in newly-written code. Use pango_default_break() and pango_tailor_break() Determines possible line, word, and character breaks for a string of Unicode text with a single analysis. For most purposes you may want to use pango_get_log_attrs(). Parameters text the text to process. Must be valid UTF-8 length length of text in bytes (may be -1 if text is nul-terminated) analysis PangoAnalysis structure from pango_itemize() attrs an array to store character information in. [array length=attrs_len] attrs_len size of the array passed as attrs pango_get_log_attrs () pango_get_log_attrs void pango_get_log_attrs (const char *text, int length, int level, PangoLanguage *language, PangoLogAttr *log_attrs, int attrs_len); Computes a PangoLogAttr for each character in text . The log_attrs array must have one PangoLogAttr for each position in text ; if text contains N characters, it has N+1 positions, including the last position at the end of the text. text should be an entire paragraph; logical attributes can't be computed without context (for example you need to see spaces on either side of a word to know the word is a word). Parameters text text to process. Must be valid UTF-8 length length in bytes of text level embedding level, or -1 if unknown language language tag log_attrs array with one PangoLogAttr per character in text , plus one extra, to be filled in. [array length=attrs_len] attrs_len length of log_attrs array pango_find_paragraph_boundary () pango_find_paragraph_boundary void pango_find_paragraph_boundary (const gchar *text, gint length, gint *paragraph_delimiter_index, gint *next_paragraph_start); Locates a paragraph boundary in text . A boundary is caused by delimiter characters, such as a newline, carriage return, carriage return-newline pair, or Unicode paragraph separator character. The index of the run of delimiters is returned in paragraph_delimiter_index . The index of the start of the paragraph (index after all delimiters) is stored in next_paragraph_start . If no delimiters are found, both paragraph_delimiter_index and next_paragraph_start are filled with the length of text (an index one off the end). Parameters text UTF-8 text length length of text in bytes, or -1 if nul-terminated paragraph_delimiter_index return location for index of delimiter. [out] next_paragraph_start return location for start of next paragraph. [out] pango_default_break () pango_default_break void pango_default_break (const gchar *text, int length, PangoAnalysis *analysis, PangoLogAttr *attrs, int attrs_len); This is the default break algorithm. It applies Unicode rules without language-specific tailoring, therefore the analyis argument is unused and can be NULL. See pango_tailor_break() for language-specific breaks. Parameters text text to break. Must be valid UTF-8 length length of text in bytes (may be -1 if text is nul-terminated) analysis a PangoAnalysis for the text . [nullable] attrs logical attributes to fill in attrs_len size of the array passed as attrs pango_tailor_break () pango_tailor_break void pango_tailor_break (const char *text, int length, PangoAnalysis *analysis, int offset, PangoLogAttr *log_attrs, int log_attrs_len); Apply language-specific tailoring to the breaks in log_attrs , which are assumed to have been produced by pango_default_break(). If offset is not -1, it is used to apply attributes from analysis that are relevant to line breaking. Parameters text text to process. Must be valid UTF-8 length length in bytes of text analysis PangoAnalysis structure from pango_itemize() for text offset Byte offset of text from the beginning of the paragraph, or -1 to ignore attributes from analysis log_attrs array with one PangoLogAttr per character in text , plus one extra, to be filled in. [array length=log_attrs_len] log_attrs_len length of log_attrs array Since: 1.44 pango_shape () pango_shape void pango_shape (const char *text, int length, const PangoAnalysis *analysis, PangoGlyphString *glyphs); Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize(). It is recommended that you use pango_shape_full() instead, since that API allows for shaping interaction happening across text item boundaries. Note that the extra attributes in the analyis that is returned from pango_itemize() have indices that are relative to the entire paragraph, so you need to subtract the item offset from their indices before calling pango_shape(). Parameters text the text to process length the length (in bytes) of text analysis PangoAnalysis structure from pango_itemize() glyphs glyph string in which to store results pango_shape_full () pango_shape_full void pango_shape_full (const char *item_text, int item_length, const char *paragraph_text, int paragraph_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs); Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize(). This is similar to pango_shape(), except it also can optionally take the full paragraph text as input, which will then be used to perform certain cross-item shaping interactions. If you have access to the broader text of which item_text is part of, provide the broader text as paragraph_text . If paragraph_text is NULL, item text is used instead. Note that the extra attributes in the analyis that is returned from pango_itemize() have indices that are relative to the entire paragraph, so you do not pass the full paragraph text as paragraph_text , you need to subtract the item offset from their indices before calling pango_shape_full(). Parameters item_text valid UTF-8 text to shape. item_length the length (in bytes) of item_text . -1 means nul-terminated text. paragraph_text text of the paragraph (see details). May be NULL. [allow-none] paragraph_length the length (in bytes) of paragraph_text . -1 means nul-terminated text. analysis PangoAnalysis structure from pango_itemize(). glyphs glyph string in which to store results. Since: 1.32 pango_shape_with_flags () pango_shape_with_flags void pango_shape_with_flags (const char *item_text, int item_length, const char *paragraph_text, int paragraph_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs, PangoShapeFlags flags); Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize(). This is similar to pango_shape_full(), except it also takes flags that can influence the shaping process. Note that the extra attributes in the analyis that is returned from pango_itemize() have indices that are relative to the entire paragraph, so you do not pass the full paragraph text as paragraph_text , you need to subtract the item offset from their indices before calling pango_shape_with_flags(). Parameters item_text valid UTF-8 text to shape item_length the length (in bytes) of item_text . -1 means nul-terminated text. paragraph_text text of the paragraph (see details). May be NULL. [allow-none] paragraph_length the length (in bytes) of paragraph_text . -1 means nul-terminated text. analysis PangoAnalysis structure from pango_itemize() glyphs glyph string in which to store results flags flags influencing the shaping process Since: 1.44 Types and Values struct PangoItem PangoItem struct PangoItem { gint offset; gint length; gint num_chars; PangoAnalysis analysis; }; The PangoItem structure stores information about a segment of text. Members gint offset; byte offset of the start of this item in text. gint length; length of this item in bytes. gint num_chars; number of Unicode characters in the item. PangoAnalysis analysis; analysis results for the item. struct PangoAnalysis PangoAnalysis struct PangoAnalysis { PangoEngineShape *shape_engine; PangoEngineLang *lang_engine; PangoFont *font; guint8 level; guint8 gravity; guint8 flags; guint8 script; PangoLanguage *language; GSList *extra_attrs; }; The PangoAnalysis structure stores information about the properties of a segment of text. Members PangoEngineShape *shape_engine; unused PangoEngineLang *lang_engine; unused PangoFont *font; the font for this segment. guint8 level; the bidirectional level for this segment. guint8 gravity; the glyph orientation for this segment (A PangoGravity). guint8 flags; boolean flags for this segment (Since: 1.16). guint8 script; the detected script for this segment (A PangoScript) (Since: 1.18). PangoLanguage *language; the detected language for this segment. GSList *extra_attrs; extra attributes for this segment. PANGO_ANALYSIS_FLAG_CENTERED_BASELINE PANGO_ANALYSIS_FLAG_CENTERED_BASELINE #define PANGO_ANALYSIS_FLAG_CENTERED_BASELINE (1 << 0) Whether the segment should be shifted to center around the baseline. Used in vertical writing directions mostly. Since: 1.16 PANGO_ANALYSIS_FLAG_IS_ELLIPSIS PANGO_ANALYSIS_FLAG_IS_ELLIPSIS #define PANGO_ANALYSIS_FLAG_IS_ELLIPSIS (1 << 1) This flag is used to mark runs that hold ellipsized text, in an ellipsized layout. Since: 1.36.7 PANGO_ANALYSIS_FLAG_NEED_HYPHEN PANGO_ANALYSIS_FLAG_NEED_HYPHEN #define PANGO_ANALYSIS_FLAG_NEED_HYPHEN (1 << 2) This flag tells Pango to add a hyphen at the end of the run during shaping. Since: 1.44 PangoLogAttr PangoLogAttr typedef struct { guint is_line_break : 1; guint is_mandatory_break : 1; guint is_char_break : 1; guint is_white : 1; guint is_cursor_position : 1; guint is_word_start : 1; guint is_word_end : 1; guint is_sentence_boundary : 1; guint is_sentence_start : 1; guint is_sentence_end : 1; guint backspace_deletes_character : 1; guint is_expandable_space : 1; guint is_word_boundary : 1; } PangoLogAttr; The PangoLogAttr structure stores information about the attributes of a single character. Members guint is_line_break : 1; if set, can break line in front of character guint is_mandatory_break : 1; if set, must break line in front of character guint is_char_break : 1; if set, can break here when doing character wrapping guint is_white : 1; is whitespace character guint is_cursor_position : 1; if set, cursor can appear in front of character. i.e. this is a grapheme boundary, or the first character in the text. This flag implements Unicode's Grapheme Cluster Boundaries semantics. guint is_word_start : 1; is first character in a word guint is_word_end : 1; is first non-word char after a word Note that in degenerate cases, you could have both is_word_start and is_word_end set for some character. guint is_sentence_boundary : 1; is a sentence boundary. There are two ways to divide sentences. The first assigns all inter-sentence whitespace/control/format chars to some sentence, so all chars are in some sentence; is_sentence_boundary denotes the boundaries there. The second way doesn't assign between-sentence spaces, etc. to any sentence, so is_sentence_start /is_sentence_end mark the boundaries of those sentences. guint is_sentence_start : 1; is first character in a sentence guint is_sentence_end : 1; is first char after a sentence. Note that in degenerate cases, you could have both is_sentence_start and is_sentence_end set for some character. (e.g. no space after a period, so the next sentence starts right away) guint backspace_deletes_character : 1; if set, backspace deletes one character rather than the entire grapheme cluster. This field is only meaningful on grapheme boundaries (where is_cursor_position is set). In some languages, the full grapheme (e.g. letter + diacritics) is considered a unit, while in others, each decomposed character in the grapheme is a unit. In the default implementation of pango_break(), this bit is set on all grapheme boundaries except those following Latin, Cyrillic or Greek base characters. guint is_expandable_space : 1; is a whitespace character that can possibly be expanded for justification purposes. (Since: 1.18) guint is_word_boundary : 1; is a word boundary, as defined by UAX29. More specifically, means that this is not a position in the middle of a word. For example, both sides of a punctuation mark are considered word boundaries. This flag is particularly useful when selecting text word-by-word. This flag implements Unicode's Word Boundaries semantics. (Since: 1.22) enum PangoShapeFlags PangoShapeFlags Flags influencing the shaping process. These can be passed to pango_shape_with_flags(). Members PANGO_SHAPE_NONE Default value. PANGO_SHAPE_ROUND_POSITIONS Round glyph positions and widths to whole device units. This option should be set if the target renderer can't do subpixel positioning of glyphs. docs/xml/context.xml0000664000175000017500000015156514002404352014653 0ustar mclasenmclasen ]> Contexts 3 PANGO Library Contexts Global context object Functions PangoContext * pango_context_new () void pango_context_changed () guint pango_context_get_serial () void pango_context_set_font_map () PangoFontMap * pango_context_get_font_map () PangoFontDescription * pango_context_get_font_description () void pango_context_set_font_description () PangoLanguage * pango_context_get_language () void pango_context_set_language () PangoDirection pango_context_get_base_dir () void pango_context_set_base_dir () PangoGravity pango_context_get_base_gravity () void pango_context_set_base_gravity () PangoGravity pango_context_get_gravity () PangoGravityHint pango_context_get_gravity_hint () void pango_context_set_gravity_hint () const PangoMatrix * pango_context_get_matrix () void pango_context_set_matrix () gboolean pango_context_get_round_glyph_positions () void pango_context_set_round_glyph_positions () PangoFont * pango_context_load_font () PangoFontset * pango_context_load_fontset () PangoFontMetrics * pango_context_get_metrics () void pango_context_list_families () Types and Values PangoContext Object Hierarchy GObject ╰── PangoContext Description The PangoContext structure stores global information influencing Pango's operation, such as the fontmap used to look up fonts, and default values such as the default language, default gravity, or default font. Functions pango_context_new () pango_context_new PangoContext * pango_context_new (void); Creates a new PangoContext initialized to default values. This function is not particularly useful as it should always be followed by a pango_context_set_font_map() call, and the function pango_font_map_create_context() does these two steps together and hence users are recommended to use that. If you are using Pango as part of a higher-level system, that system may have it's own way of create a PangoContext. For instance, the GTK+ toolkit has, among others, gdk_pango_context_get_for_screen(), and gtk_widget_get_pango_context(). Use those instead. Returns the newly allocated PangoContext, which should be freed with g_object_unref(). pango_context_changed () pango_context_changed void pango_context_changed (PangoContext *context); Forces a change in the context, which will cause any PangoLayout using this context to re-layout. This function is only useful when implementing a new backend for Pango, something applications won't do. Backends should call this function if they have attached extra data to the context and such data is changed. Parameters context a PangoContext Since: 1.32.4 pango_context_get_serial () pango_context_get_serial guint pango_context_get_serial (PangoContext *context); Returns the current serial number of context . The serial number is initialized to an small number larger than zero when a new context is created and is increased whenever the context is changed using any of the setter functions, or the PangoFontMap it uses to find fonts has changed. The serial may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals". This can be used to automatically detect changes to a PangoContext, and is only useful when implementing objects that need update when their PangoContext changes, like PangoLayout. Parameters context a PangoContext Returns The current serial number of context . Since: 1.32.4 pango_context_set_font_map () pango_context_set_font_map void pango_context_set_font_map (PangoContext *context, PangoFontMap *font_map); Sets the font map to be searched when fonts are looked-up in this context. This is only for internal use by Pango backends, a PangoContext obtained via one of the recommended methods should already have a suitable font map. Parameters context a PangoContext font_map the PangoFontMap to set. pango_context_get_font_map () pango_context_get_font_map PangoFontMap * pango_context_get_font_map (PangoContext *context); Gets the PangoFontMap used to look up fonts for this context. Parameters context a PangoContext Returns the font map for the PangoContext. This value is owned by Pango and should not be unreferenced. [transfer none] Since: 1.6 pango_context_get_font_description () pango_context_get_font_description PangoFontDescription * pango_context_get_font_description (PangoContext *context); Retrieve the default font description for the context. Parameters context a PangoContext Returns a pointer to the context's default font description. This value must not be modified or freed. [transfer none] pango_context_set_font_description () pango_context_set_font_description void pango_context_set_font_description (PangoContext *context, const PangoFontDescription *desc); Set the default font description for the context Parameters context a PangoContext desc the new pango font description pango_context_get_language () pango_context_get_language PangoLanguage * pango_context_get_language (PangoContext *context); Retrieves the global language tag for the context. Parameters context a PangoContext Returns the global language tag. pango_context_set_language () pango_context_set_language void pango_context_set_language (PangoContext *context, PangoLanguage *language); Sets the global language tag for the context. The default language for the locale of the running process can be found using pango_language_get_default(). Parameters context a PangoContext language the new language tag. pango_context_get_base_dir () pango_context_get_base_dir PangoDirection pango_context_get_base_dir (PangoContext *context); Retrieves the base direction for the context. See pango_context_set_base_dir(). Parameters context a PangoContext Returns the base direction for the context. pango_context_set_base_dir () pango_context_set_base_dir void pango_context_set_base_dir (PangoContext *context, PangoDirection direction); Sets the base direction for the context. The base direction is used in applying the Unicode bidirectional algorithm; if the direction is PANGO_DIRECTION_LTR or PANGO_DIRECTION_RTL, then the value will be used as the paragraph direction in the Unicode bidirectional algorithm. A value of PANGO_DIRECTION_WEAK_LTR or PANGO_DIRECTION_WEAK_RTL is used only for paragraphs that do not contain any strong characters themselves. Parameters context a PangoContext direction the new base direction pango_context_get_base_gravity () pango_context_get_base_gravity PangoGravity pango_context_get_base_gravity (PangoContext *context); Retrieves the base gravity for the context. See pango_context_set_base_gravity(). Parameters context a PangoContext Returns the base gravity for the context. Since: 1.16 pango_context_set_base_gravity () pango_context_set_base_gravity void pango_context_set_base_gravity (PangoContext *context, PangoGravity gravity); Sets the base gravity for the context. The base gravity is used in laying vertical text out. Parameters context a PangoContext gravity the new base gravity Since: 1.16 pango_context_get_gravity () pango_context_get_gravity PangoGravity pango_context_get_gravity (PangoContext *context); Retrieves the gravity for the context. This is similar to pango_context_get_base_gravity(), except for when the base gravity is PANGO_GRAVITY_AUTO for which pango_gravity_get_for_matrix() is used to return the gravity from the current context matrix. Parameters context a PangoContext Returns the resolved gravity for the context. Since: 1.16 pango_context_get_gravity_hint () pango_context_get_gravity_hint PangoGravityHint pango_context_get_gravity_hint (PangoContext *context); Retrieves the gravity hint for the context. See pango_context_set_gravity_hint() for details. Parameters context a PangoContext Returns the gravity hint for the context. Since: 1.16 pango_context_set_gravity_hint () pango_context_set_gravity_hint void pango_context_set_gravity_hint (PangoContext *context, PangoGravityHint hint); Sets the gravity hint for the context. The gravity hint is used in laying vertical text out, and is only relevant if gravity of the context as returned by pango_context_get_gravity() is set PANGO_GRAVITY_EAST or PANGO_GRAVITY_WEST. Parameters context a PangoContext hint the new gravity hint Since: 1.16 pango_context_get_matrix () pango_context_get_matrix const PangoMatrix * pango_context_get_matrix (PangoContext *context); Gets the transformation matrix that will be applied when rendering with this context. See pango_context_set_matrix(). Parameters context a PangoContext Returns the matrix, or NULL if no matrix has been set (which is the same as the identity matrix). The returned matrix is owned by Pango and must not be modified or freed. [nullable] Since: 1.6 pango_context_set_matrix () pango_context_set_matrix void pango_context_set_matrix (PangoContext *context, const PangoMatrix *matrix); Sets the transformation matrix that will be applied when rendering with this context. Note that reported metrics are in the user space coordinates before the application of the matrix, not device-space coordinates after the application of the matrix. So, they don't scale with the matrix, though they may change slightly for different matrices, depending on how the text is fit to the pixel grid. Parameters context a PangoContext matrix a PangoMatrix, or NULL to unset any existing matrix. (No matrix set is the same as setting the identity matrix.). [allow-none] Since: 1.6 pango_context_get_round_glyph_positions () pango_context_get_round_glyph_positions gboolean pango_context_get_round_glyph_positions (PangoContext *context); Returns whether font rendering with this context should round glyph positions and widths. Parameters context a PangoContext Since: 1.44 pango_context_set_round_glyph_positions () pango_context_set_round_glyph_positions void pango_context_set_round_glyph_positions (PangoContext *context, gboolean round_positions); Sets whether font rendering with this context should round glyph positions and widths to integral positions, in device units. This is useful when the renderer can't handle subpixel positioning of glyphs. The default value is to round glyph positions, to remain compatible with previous Pango behavior. Parameters context a PangoContext round_positions whether to round glyph positions Since: 1.44 pango_context_load_font () pango_context_load_font PangoFont * pango_context_load_font (PangoContext *context, const PangoFontDescription *desc); Loads the font in one of the fontmaps in the context that is the closest match for desc . Parameters context a PangoContext desc a PangoFontDescription describing the font to load Returns the newly allocated PangoFont that was loaded, or NULL if no font matched. [transfer full][nullable] pango_context_load_fontset () pango_context_load_fontset PangoFontset * pango_context_load_fontset (PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language); Load a set of fonts in the context that can be used to render a font matching desc . Parameters context a PangoContext desc a PangoFontDescription describing the fonts to load language a PangoLanguage the fonts will be used for Returns the newly allocated PangoFontset loaded, or NULL if no font matched. [transfer full][nullable] pango_context_get_metrics () pango_context_get_metrics PangoFontMetrics * pango_context_get_metrics (PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language); Get overall metric information for a particular font description. Since the metrics may be substantially different for different scripts, a language tag can be provided to indicate that the metrics should be retrieved that correspond to the script(s) used by that language. The PangoFontDescription is interpreted in the same way as by pango_itemize(), and the family name may be a comma separated list of figures. If characters from multiple of these families would be used to render the string, then the returned fonts would be a composite of the metrics for the fonts loaded for the individual families. Parameters context a PangoContext desc a PangoFontDescription structure. NULL means that the font description from the context will be used. [allow-none] language language tag used to determine which script to get the metrics for. NULL means that the language tag from the context will be used. If no language tag is set on the context, metrics for the default language (as determined by pango_language_get_default()) will be returned. [allow-none] Returns a PangoFontMetrics object. The caller must call pango_font_metrics_unref() when finished using the object. pango_context_list_families () pango_context_list_families void pango_context_list_families (PangoContext *context, PangoFontFamily ***families, int *n_families); List all families for a context. Parameters context a PangoContext families location to store a pointer to an array of PangoFontFamily *. This array should be freed with g_free(). [out][array length=n_families][transfer container] n_families location to store the number of elements in descs . [out] Types and Values PangoContext PangoContext typedef struct _PangoContext PangoContext; The PangoContext structure stores global information used to control the itemization process. docs/xml/glyphs.xml0000664000175000017500000041052314002404352014465 0ustar mclasenmclasen ]> Glyphs 3 PANGO Library Glyphs Structures for storing information about glyphs Functions #definePANGO_PIXELS() #definePANGO_PIXELS_FLOOR() #definePANGO_PIXELS_CEIL() #definePANGO_UNITS_ROUND() double pango_units_to_double () int pango_units_from_double () #definePANGO_ASCENT() #definePANGO_DESCENT() #definePANGO_LBEARING() #definePANGO_RBEARING() void pango_extents_to_pixels () PangoMatrix * pango_matrix_copy () void pango_matrix_free () void pango_matrix_translate () void pango_matrix_scale () void pango_matrix_rotate () void pango_matrix_concat () void pango_matrix_transform_point () void pango_matrix_transform_distance () void pango_matrix_transform_rectangle () void pango_matrix_transform_pixel_rectangle () double pango_matrix_get_font_scale_factor () void pango_matrix_get_font_scale_factors () #definePANGO_GET_UNKNOWN_GLYPH() PangoGlyphString * pango_glyph_string_new () PangoGlyphString * pango_glyph_string_copy () void pango_glyph_string_set_size () void pango_glyph_string_free () void pango_glyph_string_extents () void pango_glyph_string_extents_range () int pango_glyph_string_get_width () void pango_glyph_string_index_to_x () void pango_glyph_string_x_to_index () void pango_glyph_string_get_logical_widths () PangoGlyphItem * pango_glyph_item_copy () void pango_glyph_item_free () PangoGlyphItem * pango_glyph_item_split () GSList * pango_glyph_item_apply_attrs () void pango_glyph_item_letter_space () void pango_glyph_item_get_logical_widths () PangoGlyphItemIter * pango_glyph_item_iter_copy () void pango_glyph_item_iter_free () gboolean pango_glyph_item_iter_init_start () gboolean pango_glyph_item_iter_init_end () gboolean pango_glyph_item_iter_next_cluster () gboolean pango_glyph_item_iter_prev_cluster () Types and Values #definePANGO_SCALE structPangoRectangle structPangoMatrix #definePANGO_MATRIX_INIT typedefPangoGlyph #definePANGO_GLYPH_EMPTY #definePANGO_GLYPH_INVALID_INPUT #definePANGO_GLYPH_UNKNOWN_FLAG structPangoGlyphInfo structPangoGlyphGeometry typedefPangoGlyphUnit structPangoGlyphVisAttr structPangoGlyphString structPangoGlyphItem structPangoGlyphItemIter #definePANGO_TYPE_GLYPH_STRING Object Hierarchy GBoxed ├── PangoGlyphItem ├── PangoGlyphItemIter ├── PangoGlyphString ╰── PangoMatrix Description pango_shape() produces a string of glyphs which can be measured or drawn to the screen. The following structures are used to store information about glyphs. Functions PANGO_PIXELS() PANGO_PIXELS #define PANGO_PIXELS(d) (((int)(d) + 512) >> 10) Converts a dimension to device units by rounding. Parameters d a dimension in Pango units. Returns rounded dimension in device units. PANGO_PIXELS_FLOOR() PANGO_PIXELS_FLOOR #define PANGO_PIXELS_FLOOR(d) (((int)(d)) >> 10) Converts a dimension to device units by flooring. Parameters d a dimension in Pango units. Returns floored dimension in device units. Since: 1.14 PANGO_PIXELS_CEIL() PANGO_PIXELS_CEIL #define PANGO_PIXELS_CEIL(d) (((int)(d) + 1023) >> 10) Converts a dimension to device units by ceiling. Parameters d a dimension in Pango units. Returns ceiled dimension in device units. Since: 1.14 PANGO_UNITS_ROUND() PANGO_UNITS_ROUND #define PANGO_UNITS_ROUND(d) Rounds a dimension to whole device units, but does not convert it to device units. Parameters d a dimension in Pango units. Returns rounded dimension in Pango units. Since: 1.18 pango_units_to_double () pango_units_to_double double pango_units_to_double (int i); Converts a number in Pango units to floating-point: divides it by PANGO_SCALE. Parameters i value in Pango units Returns the double value. Since: 1.16 pango_units_from_double () pango_units_from_double int pango_units_from_double (double d); Converts a floating-point number to Pango units: multiplies it by PANGO_SCALE and rounds to nearest integer. Parameters d double floating-point value Returns the value in Pango units. Since: 1.16 PANGO_ASCENT() PANGO_ASCENT #define PANGO_ASCENT(rect) (-(rect).y) Extracts the ascent from a PangoRectangle representing glyph extents. The ascent is the distance from the baseline to the highest point of the character. This is positive if the glyph ascends above the baseline. Parameters rect a PangoRectangle PANGO_DESCENT() PANGO_DESCENT #define PANGO_DESCENT(rect) ((rect).y + (rect).height) Extracts the descent from a PangoRectangle representing glyph extents. The descent is the distance from the baseline to the lowest point of the character. This is positive if the glyph descends below the baseline. Parameters rect a PangoRectangle PANGO_LBEARING() PANGO_LBEARING #define PANGO_LBEARING(rect) ((rect).x) Extracts the left bearing from a PangoRectangle representing glyph extents. The left bearing is the distance from the horizontal origin to the farthest left point of the character. This is positive for characters drawn completely to the right of the glyph origin. Parameters rect a PangoRectangle PANGO_RBEARING() PANGO_RBEARING #define PANGO_RBEARING(rect) ((rect).x + (rect).width) Extracts the right bearing from a PangoRectangle representing glyph extents. The right bearing is the distance from the horizontal origin to the farthest right point of the character. This is positive except for characters drawn completely to the left of the horizontal origin. Parameters rect a PangoRectangle pango_extents_to_pixels () pango_extents_to_pixels void pango_extents_to_pixels (PangoRectangle *inclusive, PangoRectangle *nearest); Converts extents from Pango units to device units, dividing by the PANGO_SCALE factor and performing rounding. The inclusive rectangle is converted by flooring the x/y coordinates and extending width/height, such that the final rectangle completely includes the original rectangle. The nearest rectangle is converted by rounding the coordinates of the rectangle to the nearest device unit (pixel). The rule to which argument to use is: if you want the resulting device-space rectangle to completely contain the original rectangle, pass it in as inclusive . If you want two touching-but-not-overlapping rectangles stay touching-but-not-overlapping after rounding to device units, pass them in as nearest . Parameters inclusive rectangle to round to pixels inclusively, or NULL. [allow-none] nearest rectangle to round to nearest pixels, or NULL. [allow-none] Since: 1.16 pango_matrix_copy () pango_matrix_copy PangoMatrix * pango_matrix_copy (const PangoMatrix *matrix); Copies a PangoMatrix. Parameters matrix a PangoMatrix, may be NULL. [nullable] Returns the newly allocated PangoMatrix, which should be freed with pango_matrix_free(), or NULL if matrix was NULL. [nullable] Since: 1.6 pango_matrix_free () pango_matrix_free void pango_matrix_free (PangoMatrix *matrix); Free a PangoMatrix created with pango_matrix_copy(). Parameters matrix a PangoMatrix, may be NULL. [nullable] Since: 1.6 pango_matrix_translate () pango_matrix_translate void pango_matrix_translate (PangoMatrix *matrix, double tx, double ty); Changes the transformation represented by matrix to be the transformation given by first translating by (tx , ty ) then applying the original transformation. Parameters matrix a PangoMatrix tx amount to translate in the X direction ty amount to translate in the Y direction Since: 1.6 pango_matrix_scale () pango_matrix_scale void pango_matrix_scale (PangoMatrix *matrix, double scale_x, double scale_y); Changes the transformation represented by matrix to be the transformation given by first scaling by sx in the X direction and sy in the Y direction then applying the original transformation. Parameters matrix a PangoMatrix scale_x amount to scale by in X direction scale_y amount to scale by in Y direction Since: 1.6 pango_matrix_rotate () pango_matrix_rotate void pango_matrix_rotate (PangoMatrix *matrix, double degrees); Changes the transformation represented by matrix to be the transformation given by first rotating by degrees degrees counter-clockwise then applying the original transformation. Parameters matrix a PangoMatrix degrees degrees to rotate counter-clockwise Since: 1.6 pango_matrix_concat () pango_matrix_concat void pango_matrix_concat (PangoMatrix *matrix, const PangoMatrix *new_matrix); Changes the transformation represented by matrix to be the transformation given by first applying transformation given by new_matrix then applying the original transformation. Parameters matrix a PangoMatrix new_matrix a PangoMatrix Since: 1.6 pango_matrix_transform_point () pango_matrix_transform_point void pango_matrix_transform_point (const PangoMatrix *matrix, double *x, double *y); Transforms the point (x , y ) by matrix . Parameters matrix a PangoMatrix, or NULL. [nullable] x in/out X position. [inout] y in/out Y position. [inout] Since: 1.16 pango_matrix_transform_distance () pango_matrix_transform_distance void pango_matrix_transform_distance (const PangoMatrix *matrix, double *dx, double *dy); Transforms the distance vector (dx ,dy ) by matrix . This is similar to pango_matrix_transform_point() except that the translation components of the transformation are ignored. The calculation of the returned vector is as follows: dx2 = dx1 * xx + dy1 * xy; dy2 = dx1 * yx + dy1 * yy; Affine transformations are position invariant, so the same vector always transforms to the same vector. If (x1 ,y1 ) transforms to (x2 ,y2 ) then (x1 +dx1 ,y1 +dy1 ) will transform to (x1 +dx2 ,y1 +dy2 ) for all values of x1 and x2 . Parameters matrix a PangoMatrix, or NULL. [nullable] dx in/out X component of a distance vector. [inout] dy in/out Y component of a distance vector. [inout] Since: 1.16 pango_matrix_transform_rectangle () pango_matrix_transform_rectangle void pango_matrix_transform_rectangle (const PangoMatrix *matrix, PangoRectangle *rect); First transforms rect using matrix , then calculates the bounding box of the transformed rectangle. The rectangle should be in Pango units. This function is useful for example when you want to draw a rotated PangoLayout to an image buffer, and want to know how large the image should be and how much you should shift the layout when rendering. If you have a rectangle in device units (pixels), use pango_matrix_transform_pixel_rectangle(). If you have the rectangle in Pango units and want to convert to transformed pixel bounding box, it is more accurate to transform it first (using this function) and pass the result to pango_extents_to_pixels(), first argument, for an inclusive rounded rectangle. However, there are valid reasons that you may want to convert to pixels first and then transform, for example when the transformed coordinates may overflow in Pango units (large matrix translation for example). Parameters matrix a PangoMatrix, or NULL. [nullable] rect in/out bounding box in Pango units, or NULL. [inout][allow-none] Since: 1.16 pango_matrix_transform_pixel_rectangle () pango_matrix_transform_pixel_rectangle void pango_matrix_transform_pixel_rectangle (const PangoMatrix *matrix, PangoRectangle *rect); First transforms the rect using matrix , then calculates the bounding box of the transformed rectangle. The rectangle should be in device units (pixels). This function is useful for example when you want to draw a rotated PangoLayout to an image buffer, and want to know how large the image should be and how much you should shift the layout when rendering. For better accuracy, you should use pango_matrix_transform_rectangle() on original rectangle in Pango units and convert to pixels afterward using pango_extents_to_pixels()'s first argument. Parameters matrix a PangoMatrix, or NULL. [nullable] rect in/out bounding box in device units, or NULL. [inout][allow-none] Since: 1.16 pango_matrix_get_font_scale_factor () pango_matrix_get_font_scale_factor double pango_matrix_get_font_scale_factor (const PangoMatrix *matrix); Returns the scale factor of a matrix on the height of the font. That is, the scale factor in the direction perpendicular to the vector that the X coordinate is mapped to. If the scale in the X coordinate is needed as well, use pango_matrix_get_font_scale_factors(). Parameters matrix a PangoMatrix, may be NULL. [allow-none] Returns the scale factor of matrix on the height of the font, or 1.0 if matrix is NULL. Since: 1.12 pango_matrix_get_font_scale_factors () pango_matrix_get_font_scale_factors void pango_matrix_get_font_scale_factors (const PangoMatrix *matrix, double *xscale, double *yscale); Calculates the scale factor of a matrix on the width and height of the font. That is, xscale is the scale factor in the direction of the X coordinate, and yscale is the scale factor in the direction perpendicular to the vector that the X coordinate is mapped to. Note that output numbers will always be non-negative. Parameters matrix a PangoMatrix, or NULL. [nullable] xscale output scale factor in the x direction, or NULL. [out][allow-none] yscale output scale factor perpendicular to the x direction, or NULL. [out][allow-none] Since: 1.38 PANGO_GET_UNKNOWN_GLYPH() PANGO_GET_UNKNOWN_GLYPH #define PANGO_GET_UNKNOWN_GLYPH(wc) ((PangoGlyph)(wc)|PANGO_GLYPH_UNKNOWN_FLAG) The way this unknown glyphs are rendered is backend specific. For example, a box with the hexadecimal Unicode code-point of the character written in it is what is done in the most common backends. Parameters wc a Unicode character Returns a PangoGlyph value that means no glyph was found for wc . pango_glyph_string_new () pango_glyph_string_new PangoGlyphString * pango_glyph_string_new (void); Create a new PangoGlyphString. Returns the newly allocated PangoGlyphString, which should be freed with pango_glyph_string_free(). pango_glyph_string_copy () pango_glyph_string_copy PangoGlyphString * pango_glyph_string_copy (PangoGlyphString *string); Copy a glyph string and associated storage. Parameters string a PangoGlyphString, may be NULL. [nullable] Returns the newly allocated PangoGlyphString, which should be freed with pango_glyph_string_free(), or NULL if string was NULL. [nullable] pango_glyph_string_set_size () pango_glyph_string_set_size void pango_glyph_string_set_size (PangoGlyphString *string, gint new_len); Resize a glyph string to the given length. Parameters string a PangoGlyphString. new_len the new length of the string. pango_glyph_string_free () pango_glyph_string_free void pango_glyph_string_free (PangoGlyphString *string); Free a glyph string and associated storage. Parameters string a PangoGlyphString, may be NULL. [nullable] pango_glyph_string_extents () pango_glyph_string_extents void pango_glyph_string_extents (PangoGlyphString *glyphs, PangoFont *font, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Compute the logical and ink extents of a glyph string. See the documentation for pango_font_get_glyph_extents() for details about the interpretation of the rectangles. Examples of logical (red) and ink (green) rects: Parameters glyphs a PangoGlyphString font a PangoFont ink_rect rectangle used to store the extents of the glyph string as drawn or NULL to indicate that the result is not needed. [out][allow-none] logical_rect rectangle used to store the logical extents of the glyph string or NULL to indicate that the result is not needed. [out][allow-none] pango_glyph_string_extents_range () pango_glyph_string_extents_range void pango_glyph_string_extents_range (PangoGlyphString *glyphs, int start, int end, PangoFont *font, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Computes the extents of a sub-portion of a glyph string. The extents are relative to the start of the glyph string range (the origin of their coordinate system is at the start of the range, not at the start of the entire glyph string). Parameters glyphs a PangoGlyphString start start index end end index (the range is the set of bytes with indices such that start <= index < end) font a PangoFont ink_rect rectangle used to store the extents of the glyph string range as drawn or NULL to indicate that the result is not needed. [out caller-allocates][optional] logical_rect rectangle used to store the logical extents of the glyph string range or NULL to indicate that the result is not needed. [out caller-allocates][optional] pango_glyph_string_get_width () pango_glyph_string_get_width int pango_glyph_string_get_width (PangoGlyphString *glyphs); Computes the logical width of the glyph string as can also be computed using pango_glyph_string_extents(). However, since this only computes the width, it's much faster. This is in fact only a convenience function that computes the sum of geometry.width for each glyph in the glyphs . Parameters glyphs a PangoGlyphString Returns the logical width of the glyph string. Since: 1.14 pango_glyph_string_index_to_x () pango_glyph_string_index_to_x void pango_glyph_string_index_to_x (PangoGlyphString *glyphs, char *text, int length, PangoAnalysis *analysis, int index_, gboolean trailing, int *x_pos); Converts from character position to x position. (X position is measured from the left edge of the run). Character positions are computed by dividing up each cluster into equal portions. Parameters glyphs the glyphs return from pango_shape() text the text for the run length the number of bytes (not characters) in text . analysis the analysis information return from pango_itemize() index_ the byte index within text trailing whether we should compute the result for the beginning (FALSE) or end (TRUE) of the character. x_pos location to store result. [out] pango_glyph_string_x_to_index () pango_glyph_string_x_to_index void pango_glyph_string_x_to_index (PangoGlyphString *glyphs, char *text, int length, PangoAnalysis *analysis, int x_pos, int *index_, int *trailing); Convert from x offset to character position. Character positions are computed by dividing up each cluster into equal portions. In scripts where positioning within a cluster is not allowed (such as Thai), the returned value may not be a valid cursor position; the caller must combine the result with the logical attributes for the text to compute the valid cursor position. Parameters glyphs the glyphs returned from pango_shape() text the text for the run length the number of bytes (not characters) in text. analysis the analysis information return from pango_itemize() x_pos the x offset (in Pango units) index_ location to store calculated byte index within text . [out] trailing location to store a boolean indicating whether the user clicked on the leading or trailing edge of the character. [out] pango_glyph_string_get_logical_widths () pango_glyph_string_get_logical_widths void pango_glyph_string_get_logical_widths (PangoGlyphString *glyphs, const char *text, int length, int embedding_level, int *logical_widths); Given a PangoGlyphString resulting from pango_shape() and the corresponding text, determine the screen width corresponding to each character. When multiple characters compose a single cluster, the width of the entire cluster is divided equally among the characters. See also pango_glyph_item_get_logical_widths(). Parameters glyphs a PangoGlyphString text the text corresponding to the glyphs length the length of text , in bytes embedding_level the embedding level of the string logical_widths an array whose length is the number of characters in text (equal to g_utf8_strlen (text, length) unless text has NUL bytes) to be filled in with the resulting character widths. [array] pango_glyph_item_copy () pango_glyph_item_copy PangoGlyphItem * pango_glyph_item_copy (PangoGlyphItem *orig); Make a deep copy of an existing PangoGlyphItem structure. Parameters orig a PangoGlyphItem, may be NULL. [nullable] Returns the newly allocated PangoGlyphItem, which should be freed with pango_glyph_item_free(), or NULL if orig was NULL. [nullable] Since: 1.20 pango_glyph_item_free () pango_glyph_item_free void pango_glyph_item_free (PangoGlyphItem *glyph_item); Frees a PangoGlyphItem and resources to which it points. Parameters glyph_item a PangoGlyphItem, may be NULL. [nullable] Since: 1.6 pango_glyph_item_split () pango_glyph_item_split PangoGlyphItem * pango_glyph_item_split (PangoGlyphItem *orig, const char *text, int split_index); Modifies orig to cover only the text after split_index , and returns a new item that covers the text before split_index that used to be in orig . You can think of split_index as the length of the returned item. split_index may not be 0, and it may not be greater than or equal to the length of orig (that is, there must be at least one byte assigned to each item, you can't create a zero-length item). This function is similar in function to pango_item_split() (and uses it internally.) Parameters orig a PangoItem text text to which positions in orig apply split_index byte index of position to split item, relative to the start of the item Returns the newly allocated item representing text before split_index , which should be freed with pango_glyph_item_free(). Since: 1.2 pango_glyph_item_apply_attrs () pango_glyph_item_apply_attrs GSList * pango_glyph_item_apply_attrs (PangoGlyphItem *glyph_item, const char *text, PangoAttrList *list); Splits a shaped item (PangoGlyphItem) into multiple items based on an attribute list. The idea is that if you have attributes that don't affect shaping, such as color or underline, to avoid affecting shaping, you filter them out (pango_attr_list_filter()), apply the shaping process and then reapply them to the result using this function. All attributes that start or end inside a cluster are applied to that cluster; for instance, if half of a cluster is underlined and the other-half strikethrough, then the cluster will end up with both underline and strikethrough attributes. In these cases, it may happen that item->extra_attrs for some of the result items can have multiple attributes of the same type. This function takes ownership of glyph_item ; it will be reused as one of the elements in the list. Parameters glyph_item a shaped item text text that list applies to list a PangoAttrList Returns a list of glyph items resulting from splitting glyph_item . Free the elements using pango_glyph_item_free(), the list using g_slist_free(). [transfer full][element-type Pango.GlyphItem] Since: 1.2 pango_glyph_item_letter_space () pango_glyph_item_letter_space void pango_glyph_item_letter_space (PangoGlyphItem *glyph_item, const char *text, PangoLogAttr *log_attrs, int letter_spacing); Adds spacing between the graphemes of glyph_item to give the effect of typographic letter spacing. Parameters glyph_item a PangoGlyphItem text text that glyph_item corresponds to (glyph_item->item->offset is an offset from the start of text ) log_attrs logical attributes for the item (the first logical attribute refers to the position before the first character in the item). [array] letter_spacing amount of letter spacing to add in Pango units. May be negative, though too large negative values will give ugly results. Since: 1.6 pango_glyph_item_get_logical_widths () pango_glyph_item_get_logical_widths void pango_glyph_item_get_logical_widths (PangoGlyphItem *glyph_item, const char *text, int *logical_widths); Given a PangoGlyphItem and the corresponding text, determine the screen width corresponding to each character. When multiple characters compose a single cluster, the width of the entire cluster is divided equally among the characters. See also pango_glyph_string_get_logical_widths(). Parameters glyph_item a PangoGlyphItem text text that glyph_item corresponds to (glyph_item->item->offset is an offset from the start of text ) logical_widths an array whose length is the number of characters in glyph_item (equal to glyph_item->item->num_chars) to be filled in with the resulting character widths. [array] Since: 1.26 pango_glyph_item_iter_copy () pango_glyph_item_iter_copy PangoGlyphItemIter * pango_glyph_item_iter_copy (PangoGlyphItemIter *orig); Make a shallow copy of an existing PangoGlyphItemIter structure. Parameters orig a PangoGlyphItemIter, may be NULL. [nullable] Returns the newly allocated PangoGlyphItemIter, which should be freed with pango_glyph_item_iter_free(), or NULL if orig was NULL. [nullable] Since: 1.22 pango_glyph_item_iter_free () pango_glyph_item_iter_free void pango_glyph_item_iter_free (PangoGlyphItemIter *iter); Frees a PangoGlyphItemIter created by pango_glyph_item_iter_copy(). Parameters iter a PangoGlyphItemIter, may be NULL. [nullable] Since: 1.22 pango_glyph_item_iter_init_start () pango_glyph_item_iter_init_start gboolean pango_glyph_item_iter_init_start (PangoGlyphItemIter *iter, PangoGlyphItem *glyph_item, const char *text); Initializes a PangoGlyphItemIter structure to point to the first cluster in a glyph item. See PangoGlyphItemIter for details of cluster orders. Parameters iter a PangoGlyphItemIter glyph_item the glyph item to iterate over text text corresponding to the glyph item Returns FALSE if there are no clusters in the glyph item Since: 1.22 pango_glyph_item_iter_init_end () pango_glyph_item_iter_init_end gboolean pango_glyph_item_iter_init_end (PangoGlyphItemIter *iter, PangoGlyphItem *glyph_item, const char *text); Initializes a PangoGlyphItemIter structure to point to the last cluster in a glyph item. See PangoGlyphItemIter for details of cluster orders. Parameters iter a PangoGlyphItemIter glyph_item the glyph item to iterate over text text corresponding to the glyph item Returns FALSE if there are no clusters in the glyph item Since: 1.22 pango_glyph_item_iter_next_cluster () pango_glyph_item_iter_next_cluster gboolean pango_glyph_item_iter_next_cluster (PangoGlyphItemIter *iter); Advances the iterator to the next cluster in the glyph item. See PangoGlyphItemIter for details of cluster orders. Parameters iter a PangoGlyphItemIter Returns TRUE if the iterator was advanced, FALSE if we were already on the last cluster. Since: 1.22 pango_glyph_item_iter_prev_cluster () pango_glyph_item_iter_prev_cluster gboolean pango_glyph_item_iter_prev_cluster (PangoGlyphItemIter *iter); Moves the iterator to the preceding cluster in the glyph item. See PangoGlyphItemIter for details of cluster orders. Parameters iter a PangoGlyphItemIter Returns TRUE if the iterator was moved, FALSE if we were already on the first cluster. Since: 1.22 Types and Values PANGO_SCALE PANGO_SCALE #define PANGO_SCALE 1024 The PANGO_SCALE macro represents the scale between dimensions used for Pango distances and device units. (The definition of device units is dependent on the output device; it will typically be pixels for a screen, and points for a printer.) PANGO_SCALE is currently 1024, but this may be changed in the future. When setting font sizes, device units are always considered to be points (as in "12 point font"), rather than pixels. struct PangoRectangle PangoRectangle struct PangoRectangle { int x; int y; int width; int height; }; The PangoRectangle structure represents a rectangle. It is frequently used to represent the logical or ink extents of a single glyph or section of text. (See, for instance, pango_font_get_glyph_extents()) Members int x; X coordinate of the left side of the rectangle. int y; Y coordinate of the the top side of the rectangle. int width; width of the rectangle. int height; height of the rectangle. struct PangoMatrix PangoMatrix struct PangoMatrix { double xx; double xy; double yx; double yy; double x0; double y0; }; A structure specifying a transformation between user-space coordinates and device coordinates. The transformation is given by x_device = x_user * matrix->xx + y_user * matrix->xy + matrix->x0; y_device = x_user * matrix->yx + y_user * matrix->yy + matrix->y0; Members double xx; 1st component of the transformation matrix double xy; 2nd component of the transformation matrix double yx; 3rd component of the transformation matrix double yy; 4th component of the transformation matrix double x0; x translation double y0; y translation Since: 1.6 PANGO_MATRIX_INIT PANGO_MATRIX_INIT #define PANGO_MATRIX_INIT { 1., 0., 0., 1., 0., 0. } Constant that can be used to initialize a PangoMatrix to the identity transform. PangoMatrix matrix = PANGO_MATRIX_INIT; pango_matrix_rotate (&matrix, 45.); Since: 1.6 PangoGlyph PangoGlyph typedef guint32 PangoGlyph; A PangoGlyph represents a single glyph in the output form of a string. PANGO_GLYPH_EMPTY PANGO_GLYPH_EMPTY #define PANGO_GLYPH_EMPTY ((PangoGlyph)0x0FFFFFFF) The PANGO_GLYPH_EMPTY macro represents a PangoGlyph value that has a special meaning, which is a zero-width empty glyph. This is useful for example in shaper modules, to use as the glyph for various zero-width Unicode characters (those passing pango_is_zero_width()). PANGO_GLYPH_INVALID_INPUT PANGO_GLYPH_INVALID_INPUT #define PANGO_GLYPH_INVALID_INPUT ((PangoGlyph)0xFFFFFFFF) The PANGO_GLYPH_INVALID_INPUT macro represents a PangoGlyph value that has a special meaning of invalid input. PangoLayout produces one such glyph per invalid input UTF-8 byte and such a glyph is rendered as a crossed box. Note that this value is defined such that it has the PANGO_GLYPH_UNKNOWN_FLAG on. Since: 1.20 PANGO_GLYPH_UNKNOWN_FLAG PANGO_GLYPH_UNKNOWN_FLAG #define PANGO_GLYPH_UNKNOWN_FLAG ((PangoGlyph)0x10000000) The PANGO_GLYPH_UNKNOWN_FLAG macro is a flag value that can be added to a gunichar value of a valid Unicode character, to produce a PangoGlyph value, representing an unknown-character glyph for the respective gunichar. struct PangoGlyphInfo PangoGlyphInfo struct PangoGlyphInfo { PangoGlyph glyph; PangoGlyphGeometry geometry; PangoGlyphVisAttr attr; }; The PangoGlyphInfo structure represents a single glyph together with positioning information and visual attributes. It contains the following fields. Members PangoGlyph glyph; the glyph itself. PangoGlyphGeometry geometry; the positional information about the glyph. PangoGlyphVisAttr attr; the visual attributes of the glyph. struct PangoGlyphGeometry PangoGlyphGeometry struct PangoGlyphGeometry { PangoGlyphUnit width; PangoGlyphUnit x_offset; PangoGlyphUnit y_offset; }; The PangoGlyphGeometry structure contains width and positioning information for a single glyph. Members PangoGlyphUnit width; the logical width to use for the the character. PangoGlyphUnit x_offset; horizontal offset from nominal character position. PangoGlyphUnit y_offset; vertical offset from nominal character position. PangoGlyphUnit PangoGlyphUnit typedef gint32 PangoGlyphUnit; The PangoGlyphUnit type is used to store dimensions within Pango. Dimensions are stored in 1/PANGO_SCALE of a device unit. (A device unit might be a pixel for screen display, or a point on a printer.) PANGO_SCALE is currently 1024, and may change in the future (unlikely though), but you should not depend on its exact value. The PANGO_PIXELS() macro can be used to convert from glyph units into device units with correct rounding. struct PangoGlyphVisAttr PangoGlyphVisAttr struct PangoGlyphVisAttr { guint is_cluster_start : 1; }; The PangoGlyphVisAttr is used to communicate information between the shaping phase and the rendering phase. More attributes may be added in the future. Members guint is_cluster_start : 1; set for the first logical glyph in each cluster. (Clusters are stored in visual order, within the cluster, glyphs are always ordered in logical order, since visual order is meaningless; that is, in Arabic text, accent glyphs follow the glyphs for the base character.) struct PangoGlyphString PangoGlyphString struct PangoGlyphString { gint num_glyphs; PangoGlyphInfo *glyphs; gint *log_clusters; }; The PangoGlyphString structure is used to store strings of glyphs with geometry and visual attribute information. The storage for the glyph information is owned by the structure which simplifies memory management. Members gint num_glyphs; number of the glyphs in this glyph string. PangoGlyphInfo *glyphs; array of glyph information for the glyph string. [array length=num_glyphs] gint *log_clusters; logical cluster info, indexed by the byte index within the text corresponding to the glyph string. struct PangoGlyphItem PangoGlyphItem struct PangoGlyphItem { PangoItem *item; PangoGlyphString *glyphs; }; A PangoGlyphItem is a pair of a PangoItem and the glyphs resulting from shaping the text corresponding to an item. As an example of the usage of PangoGlyphItem, the results of shaping text with PangoLayout is a list of PangoLayoutLine, each of which contains a list of PangoGlyphItem. Members PangoItem *item; corresponding PangoItem. PangoGlyphString *glyphs; corresponding PangoGlyphString. struct PangoGlyphItemIter PangoGlyphItemIter struct PangoGlyphItemIter { PangoGlyphItem *glyph_item; const gchar *text; int start_glyph; int start_index; int start_char; int end_glyph; int end_index; int end_char; }; A PangoGlyphItemIter is an iterator over the clusters in a PangoGlyphItem. The forward direction of the iterator is the logical direction of text. That is, with increasing start_index and start_char values. If glyph_item is right-to-left (that is, if glyph_item->item->analysis.level is odd), then start_glyph decreases as the iterator moves forward. Moreover, in right-to-left cases, start_glyph is greater than end_glyph . An iterator should be initialized using either of pango_glyph_item_iter_init_start() and pango_glyph_item_iter_init_end(), for forward and backward iteration respectively, and walked over using any desired mixture of pango_glyph_item_iter_next_cluster() and pango_glyph_item_iter_prev_cluster(). A common idiom for doing a forward iteration over the clusters is: PangoGlyphItemIter cluster_iter; gboolean have_cluster; for (have_cluster = pango_glyph_item_iter_init_start (&cluster_iter, glyph_item, text); have_cluster; have_cluster = pango_glyph_item_iter_next_cluster (&cluster_iter)) { ... } Note that text is the start of the text for layout, which is then indexed by glyph_item->item->offset to get to the text of glyph_item . The start_index and end_index values can directly index into text . The start_glyph , end_glyph , start_char , and end_char values however are zero-based for the glyph_item . For each cluster, the item pointed at by the start variables is included in the cluster while the one pointed at by end variables is not. None of the members of a PangoGlyphItemIter should be modified manually. Since: 1.22 PANGO_TYPE_GLYPH_STRING PANGO_TYPE_GLYPH_STRING #define PANGO_TYPE_GLYPH_STRING (pango_glyph_string_get_type ()) The GObject type for PangoGlyphString. docs/xml/api-index-1.48.xml0000664000175000017500000000314014002404352015416 0ustar mclasenmclasen ]> F pango_fc_font_get_languages, function in PangoFcFont pango_fc_font_get_pattern, function in PangoFcFont pango_fc_font_map_set_default_substitute, function in PangoFcFontMap pango_fc_font_map_substitute_changed, function in PangoFcFontMap L pango_language_get_preferred, function in Scripts and Languages docs/xml/coverage-maps.xml0000664000175000017500000005706714002404352015722 0ustar mclasenmclasen ]> Coverage Maps 3 PANGO Library Coverage Maps Unicode character range coverage storage Functions PangoCoverage * pango_coverage_new () PangoCoverage * pango_coverage_ref () void pango_coverage_unref () PangoCoverage * pango_coverage_copy () PangoCoverageLevel pango_coverage_get () void pango_coverage_max () void pango_coverage_set () void pango_coverage_to_bytes () PangoCoverage * pango_coverage_from_bytes () Types and Values enumPangoCoverageLevel #definePANGO_TYPE_COVERAGE_LEVEL PangoCoverage Object Hierarchy GEnum ╰── PangoCoverageLevel GObject ╰── PangoCoverage Description It is often necessary in Pango to determine if a particular font can represent a particular character, and also how well it can represent that character. The PangoCoverage is a data structure that is used to represent that information. Functions pango_coverage_new () pango_coverage_new PangoCoverage * pango_coverage_new (void); Create a new PangoCoverage Returns the newly allocated PangoCoverage, initialized to PANGO_COVERAGE_NONE with a reference count of one, which should be freed with pango_coverage_unref(). pango_coverage_ref () pango_coverage_ref PangoCoverage * pango_coverage_ref (PangoCoverage *coverage); Increase the reference count on the PangoCoverage by one Parameters coverage a PangoCoverage. [not nullable] Returns coverage . [transfer full] pango_coverage_unref () pango_coverage_unref void pango_coverage_unref (PangoCoverage *coverage); Decrease the reference count on the PangoCoverage by one. If the result is zero, free the coverage and all associated memory. Parameters coverage a PangoCoverage. [transfer full][not nullable] pango_coverage_copy () pango_coverage_copy PangoCoverage * pango_coverage_copy (PangoCoverage *coverage); Copy an existing PangoCoverage. (This function may now be unnecessary since we refcount the structure. File a bug if you use it.) Parameters coverage a PangoCoverage Returns the newly allocated PangoCoverage, with a reference count of one, which should be freed with pango_coverage_unref(). [transfer full] pango_coverage_get () pango_coverage_get PangoCoverageLevel pango_coverage_get (PangoCoverage *coverage, int index_); Determine whether a particular index is covered by coverage Parameters coverage a PangoCoverage index_ the index to check Returns the coverage level of coverage for character index_ . pango_coverage_max () pango_coverage_max void pango_coverage_max (PangoCoverage *coverage, PangoCoverage *other); pango_coverage_max has been deprecated since version 1.44 and should not be used in newly-written code. This function does nothing Set the coverage for each index in coverage to be the max (better) value of the current coverage for the index and the coverage for the corresponding index in other . Parameters coverage a PangoCoverage other another PangoCoverage pango_coverage_set () pango_coverage_set void pango_coverage_set (PangoCoverage *coverage, int index_, PangoCoverageLevel level); Modify a particular index within coverage Parameters coverage a PangoCoverage index_ the index to modify level the new level for index_ pango_coverage_to_bytes () pango_coverage_to_bytes void pango_coverage_to_bytes (PangoCoverage *coverage, guchar **bytes, int *n_bytes); pango_coverage_to_bytes has been deprecated since version 1.44 and should not be used in newly-written code. This returns NULL Convert a PangoCoverage structure into a flat binary format Parameters coverage a PangoCoverage bytes location to store result (must be freed with g_free()). [out][array length=n_bytes][element-type guint8] n_bytes location to store size of result. [out] pango_coverage_from_bytes () pango_coverage_from_bytes PangoCoverage * pango_coverage_from_bytes (guchar *bytes, int n_bytes); pango_coverage_from_bytes has been deprecated since version 1.44 and should not be used in newly-written code. This returns NULL Convert data generated from pango_coverage_to_bytes() back to a PangoCoverage Parameters bytes binary data representing a PangoCoverage. [array length=n_bytes][element-type guint8] n_bytes the size of bytes in bytes Returns a newly allocated PangoCoverage, or NULL if the data was invalid. [transfer full][nullable] Types and Values enum PangoCoverageLevel PangoCoverageLevel Used to indicate how well a font can represent a particular Unicode character point for a particular script. Since 1.44, only PANGO_COVERAGE_NONE and PANGO_COVERAGE_EXACT will be returned. Members PANGO_COVERAGE_NONE The character is not representable with the font. PANGO_COVERAGE_FALLBACK The character is represented in a way that may be comprehensible but is not the correct graphical form. For instance, a Hangul character represented as a a sequence of Jamos, or a Latin transliteration of a Cyrillic word. PANGO_COVERAGE_APPROXIMATE The character is represented as basically the correct graphical form, but with a stylistic variant inappropriate for the current script. PANGO_COVERAGE_EXACT The character is represented as the correct graphical form. PANGO_TYPE_COVERAGE_LEVEL PANGO_TYPE_COVERAGE_LEVEL #define PANGO_TYPE_COVERAGE_LEVEL (pango_coverage_level_get_type ()) PangoCoverage PangoCoverage typedef struct _PangoCoverage PangoCoverage; The PangoCoverage structure represents a map from Unicode characters to PangoCoverageLevel. It is an opaque structure with no public fields. docs/xml/fonts.xml0000664000175000017500000062546114002404352014321 0ustar mclasenmclasen ]> Fonts 3 PANGO Library Fonts Structures representing abstract fonts Functions PangoFontDescription * pango_font_description_new () PangoFontDescription * pango_font_description_copy () PangoFontDescription * pango_font_description_copy_static () guint pango_font_description_hash () gboolean pango_font_description_equal () void pango_font_description_free () void pango_font_descriptions_free () void pango_font_description_set_family () void pango_font_description_set_family_static () const char * pango_font_description_get_family () void pango_font_description_set_style () PangoStyle pango_font_description_get_style () void pango_font_description_set_variant () PangoVariant pango_font_description_get_variant () void pango_font_description_set_weight () PangoWeight pango_font_description_get_weight () void pango_font_description_set_stretch () PangoStretch pango_font_description_get_stretch () void pango_font_description_set_size () gint pango_font_description_get_size () void pango_font_description_set_absolute_size () gboolean pango_font_description_get_size_is_absolute () void pango_font_description_set_gravity () PangoGravity pango_font_description_get_gravity () void pango_font_description_set_variations () void pango_font_description_set_variations_static () const char * pango_font_description_get_variations () PangoFontMask pango_font_description_get_set_fields () void pango_font_description_unset_fields () void pango_font_description_merge () void pango_font_description_merge_static () gboolean pango_font_description_better_match () PangoFontDescription * pango_font_description_from_string () char * pango_font_description_to_string () char * pango_font_description_to_filename () PangoFontMetrics * pango_font_metrics_ref () void pango_font_metrics_unref () int pango_font_metrics_get_ascent () int pango_font_metrics_get_descent () int pango_font_metrics_get_height () int pango_font_metrics_get_approximate_char_width () int pango_font_metrics_get_approximate_digit_width () int pango_font_metrics_get_underline_thickness () int pango_font_metrics_get_underline_position () int pango_font_metrics_get_strikethrough_thickness () int pango_font_metrics_get_strikethrough_position () PangoEngineShape * pango_font_find_shaper () PangoFontDescription * pango_font_describe () PangoFontDescription * pango_font_describe_with_absolute_size () PangoFontFace * pango_font_get_face () PangoCoverage * pango_font_get_coverage () gboolean pango_font_has_char () void pango_font_get_glyph_extents () PangoFontMetrics * pango_font_get_metrics () PangoFontMap * pango_font_get_font_map () void pango_font_get_features () hb_font_t * pango_font_get_hb_font () const char * pango_font_family_get_name () gboolean pango_font_family_is_monospace () gboolean pango_font_family_is_variable () void pango_font_family_list_faces () PangoFontFace * pango_font_family_get_face () const char * pango_font_face_get_face_name () void pango_font_face_list_sizes () PangoFontDescription * pango_font_face_describe () gboolean pango_font_face_is_synthesized () PangoFontFamily * pango_font_face_get_family () PangoContext * pango_font_map_create_context () PangoFont * pango_font_map_load_font () PangoFontset * pango_font_map_load_fontset () void pango_font_map_list_families () PangoFontFamily * pango_font_map_get_family () guint pango_font_map_get_serial () void pango_font_map_changed () PangoFont * pango_fontset_get_font () PangoFontMetrics * pango_fontset_get_metrics () gboolean (*PangoFontsetForeachFunc) () void pango_fontset_foreach () Types and Values PangoFontDescription enumPangoStyle enumPangoWeight enumPangoVariant enumPangoStretch enumPangoFontMask structPangoFontMetrics PangoFont structPangoFontFamily structPangoFontFace PangoFontMap structPangoFontMapClass structPangoFontset structPangoFontsetClass Object Hierarchy GBoxed ├── PangoFontDescription ╰── PangoFontMetrics GEnum ├── PangoStretch ├── PangoStyle ├── PangoVariant ╰── PangoWeight GFlags ╰── PangoFontMask GObject ├── PangoFont │ ╰── PangoFcFont ├── PangoFontFace ├── PangoFontFamily ├── PangoFontMap │ ╰── PangoFcFontMap ╰── PangoFontset Known Derived Interfaces PangoFont is required by PangoCairoFont. PangoFontMap is required by PangoCairoFontMap. Implemented Interfaces PangoFontFamily implements GListModel. PangoFontMap implements GListModel. Description Pango supports a flexible architecture where a particular rendering architecture can supply an implementation of fonts. The PangoFont structure represents an abstract rendering-system-independent font. Pango provides routines to list available fonts, and to load a font matching a given description. Functions pango_font_description_new () pango_font_description_new PangoFontDescription * pango_font_description_new (void); Creates a new font description structure with all fields unset. Returns the newly allocated PangoFontDescription, which should be freed using pango_font_description_free(). pango_font_description_copy () pango_font_description_copy PangoFontDescription * pango_font_description_copy (const PangoFontDescription *desc); Make a copy of a PangoFontDescription. Parameters desc a PangoFontDescription, may be NULL. [nullable] Returns the newly allocated PangoFontDescription, which should be freed with pango_font_description_free(), or NULL if desc was NULL. [nullable] pango_font_description_copy_static () pango_font_description_copy_static PangoFontDescription * pango_font_description_copy_static (const PangoFontDescription *desc); Like pango_font_description_copy(), but only a shallow copy is made of the family name and other allocated fields. The result can only be used until desc is modified or freed. This is meant to be used when the copy is only needed temporarily. Parameters desc a PangoFontDescription, may be NULL. [nullable] Returns the newly allocated PangoFontDescription, which should be freed with pango_font_description_free(), or NULL if desc was NULL. [nullable] pango_font_description_hash () pango_font_description_hash guint pango_font_description_hash (const PangoFontDescription *desc); Computes a hash of a PangoFontDescription structure suitable to be used, for example, as an argument to g_hash_table_new(). The hash value is independent of desc->mask . Parameters desc a PangoFontDescription Returns the hash value. pango_font_description_equal () pango_font_description_equal gboolean pango_font_description_equal (const PangoFontDescription *desc1, const PangoFontDescription *desc2); Compares two font descriptions for equality. Two font descriptions are considered equal if the fonts they describe are provably identical. This means that their masks do not have to match, as long as other fields are all the same. (Two font descriptions may result in identical fonts being loaded, but still compare FALSE.) Parameters desc1 a PangoFontDescription desc2 another PangoFontDescription Returns TRUE if the two font descriptions are identical, FALSE otherwise. pango_font_description_free () pango_font_description_free void pango_font_description_free (PangoFontDescription *desc); Frees a font description. Parameters desc a PangoFontDescription, may be NULL. [nullable] pango_font_descriptions_free () pango_font_descriptions_free void pango_font_descriptions_free (PangoFontDescription **descs, int n_descs); Frees an array of font descriptions. Parameters descs a pointer to an array of PangoFontDescription, may be NULL. [allow-none][array length=n_descs][transfer full] n_descs number of font descriptions in descs pango_font_description_set_family () pango_font_description_set_family void pango_font_description_set_family (PangoFontDescription *desc, const char *family); Sets the family name field of a font description. The family name represents a family of related font styles, and will resolve to a particular PangoFontFamily. In some uses of PangoFontDescription, it is also possible to use a comma separated list of family names for this field. Parameters desc a PangoFontDescription. family a string representing the family name. pango_font_description_set_family_static () pango_font_description_set_family_static void pango_font_description_set_family_static (PangoFontDescription *desc, const char *family); Like pango_font_description_set_family(), except that no copy of family is made. The caller must make sure that the string passed in stays around until desc has been freed or the name is set again. This function can be used if family is a static string such as a C string literal, or if desc is only needed temporarily. Parameters desc a PangoFontDescription family a string representing the family name. pango_font_description_get_family () pango_font_description_get_family const char * pango_font_description_get_family (const PangoFontDescription *desc); Gets the family name field of a font description. See pango_font_description_set_family(). Parameters desc a PangoFontDescription. Returns the family name field for the font description, or NULL if not previously set. This has the same life-time as the font description itself and should not be freed. [nullable] pango_font_description_set_style () pango_font_description_set_style void pango_font_description_set_style (PangoFontDescription *desc, PangoStyle style); Sets the style field of a PangoFontDescription. The PangoStyle enumeration describes whether the font is slanted and the manner in which it is slanted; it can be either PANGO_STYLE_NORMAL, PANGO_STYLE_ITALIC, or PANGO_STYLE_OBLIQUE. Most fonts will either have a italic style or an oblique style, but not both, and font matching in Pango will match italic specifications with oblique fonts and vice-versa if an exact match is not found. Parameters desc a PangoFontDescription style the style for the font description pango_font_description_get_style () pango_font_description_get_style PangoStyle pango_font_description_get_style (const PangoFontDescription *desc); Gets the style field of a PangoFontDescription. See pango_font_description_set_style(). Parameters desc a PangoFontDescription Returns the style field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not. pango_font_description_set_variant () pango_font_description_set_variant void pango_font_description_set_variant (PangoFontDescription *desc, PangoVariant variant); Sets the variant field of a font description. The PangoVariant can either be PANGO_VARIANT_NORMAL or PANGO_VARIANT_SMALL_CAPS. Parameters desc a PangoFontDescription variant the variant type for the font description. pango_font_description_get_variant () pango_font_description_get_variant PangoVariant pango_font_description_get_variant (const PangoFontDescription *desc); Gets the variant field of a PangoFontDescription. See pango_font_description_set_variant(). Parameters desc a PangoFontDescription. Returns the variant field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not. pango_font_description_set_weight () pango_font_description_set_weight void pango_font_description_set_weight (PangoFontDescription *desc, PangoWeight weight); Sets the weight field of a font description. The weight field specifies how bold or light the font should be. In addition to the values of the PangoWeight enumeration, other intermediate numeric values are possible. Parameters desc a PangoFontDescription weight the weight for the font description. pango_font_description_get_weight () pango_font_description_get_weight PangoWeight pango_font_description_get_weight (const PangoFontDescription *desc); Gets the weight field of a font description. See pango_font_description_set_weight(). Parameters desc a PangoFontDescription Returns the weight field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not. pango_font_description_set_stretch () pango_font_description_set_stretch void pango_font_description_set_stretch (PangoFontDescription *desc, PangoStretch stretch); Sets the stretch field of a font description. The stretch field specifies how narrow or wide the font should be. Parameters desc a PangoFontDescription stretch the stretch for the font description pango_font_description_get_stretch () pango_font_description_get_stretch PangoStretch pango_font_description_get_stretch (const PangoFontDescription *desc); Gets the stretch field of a font description. See pango_font_description_set_stretch(). Parameters desc a PangoFontDescription. Returns the stretch field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not. pango_font_description_set_size () pango_font_description_set_size void pango_font_description_set_size (PangoFontDescription *desc, gint size); Sets the size field of a font description in fractional points. This is mutually exclusive with pango_font_description_set_absolute_size(). Parameters desc a PangoFontDescription size the size of the font in points, scaled by PANGO_SCALE. (That is, a size value of 10 * PANGO_SCALE is a 10 point font. The conversion factor between points and device units depends on system configuration and the output device. For screen display, a logical DPI of 96 is common, in which case a 10 point font corresponds to a 10 * (96 / 72) = 13.3 pixel font. Use pango_font_description_set_absolute_size() if you need a particular size in device units. pango_font_description_get_size () pango_font_description_get_size gint pango_font_description_get_size (const PangoFontDescription *desc); Gets the size field of a font description. See pango_font_description_set_size(). Parameters desc a PangoFontDescription Returns the size field for the font description in points or device units. You must call pango_font_description_get_size_is_absolute() to find out which is the case. Returns 0 if the size field has not previously been set or it has been set to 0 explicitly. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not. pango_font_description_set_absolute_size () pango_font_description_set_absolute_size void pango_font_description_set_absolute_size (PangoFontDescription *desc, double size); Sets the size field of a font description, in device units. This is mutually exclusive with pango_font_description_set_size() which sets the font size in points. Parameters desc a PangoFontDescription size the new size, in Pango units. There are PANGO_SCALE Pango units in one device unit. For an output backend where a device unit is a pixel, a size value of 10 * PANGO_SCALE gives a 10 pixel font. Since: 1.8 pango_font_description_get_size_is_absolute () pango_font_description_get_size_is_absolute gboolean pango_font_description_get_size_is_absolute (const PangoFontDescription *desc); Determines whether the size of the font is in points (not absolute) or device units (absolute). See pango_font_description_set_size() and pango_font_description_set_absolute_size(). Parameters desc a PangoFontDescription Returns whether the size for the font description is in points or device units. Use pango_font_description_get_set_fields() to find out if the size field of the font description was explicitly set or not. Since: 1.8 pango_font_description_set_gravity () pango_font_description_set_gravity void pango_font_description_set_gravity (PangoFontDescription *desc, PangoGravity gravity); Sets the gravity field of a font description. The gravity field specifies how the glyphs should be rotated. If gravity is PANGO_GRAVITY_AUTO, this actually unsets the gravity mask on the font description. This function is seldom useful to the user. Gravity should normally be set on a PangoContext. Parameters desc a PangoFontDescription gravity the gravity for the font description. Since: 1.16 pango_font_description_get_gravity () pango_font_description_get_gravity PangoGravity pango_font_description_get_gravity (const PangoFontDescription *desc); Gets the gravity field of a font description. See pango_font_description_set_gravity(). Parameters desc a PangoFontDescription Returns the gravity field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not. Since: 1.16 pango_font_description_set_variations () pango_font_description_set_variations void pango_font_description_set_variations (PangoFontDescription *desc, const char *variations); Sets the variations field of a font description. OpenType font variations allow to select a font instance by specifying values for a number of axes, such as width or weight. The format of the variations string is AXIS1=VALUE,AXIS2=VALUE..., with each AXIS a 4 character tag that identifies a font axis, and each VALUE a floating point number. Unknown axes are ignored, and values are clamped to their allowed range. Pango does not currently have a way to find supported axes of a font. Both harfbuzz or freetype have API for this. Parameters desc a PangoFontDescription. variations a string representing the variations Since: 1.42 pango_font_description_set_variations_static () pango_font_description_set_variations_static void pango_font_description_set_variations_static (PangoFontDescription *desc, const char *variations); Like pango_font_description_set_variations(), except that no copy of variations is made. The caller must make sure that the string passed in stays around until desc has been freed or the name is set again. This function can be used if variations is a static string such as a C string literal, or if desc is only needed temporarily. Parameters desc a PangoFontDescription variations a string representing the variations Since: 1.42 pango_font_description_get_variations () pango_font_description_get_variations const char * pango_font_description_get_variations (const PangoFontDescription *desc); Gets the variations field of a font description. See pango_font_description_set_variations(). Parameters desc a PangoFontDescription Returns the varitions field for the font description, or NULL if not previously set. This has the same life-time as the font description itself and should not be freed. [nullable] Since: 1.42 pango_font_description_get_set_fields () pango_font_description_get_set_fields PangoFontMask pango_font_description_get_set_fields (const PangoFontDescription *desc); Determines which fields in a font description have been set. Parameters desc a PangoFontDescription Returns a bitmask with bits set corresponding to the fields in desc that have been set. pango_font_description_unset_fields () pango_font_description_unset_fields void pango_font_description_unset_fields (PangoFontDescription *desc, PangoFontMask to_unset); Unsets some of the fields in a PangoFontDescription. The unset fields will get back to their default values. Parameters desc a PangoFontDescription to_unset bitmask of fields in the desc to unset. pango_font_description_merge () pango_font_description_merge void pango_font_description_merge (PangoFontDescription *desc, const PangoFontDescription *desc_to_merge, gboolean replace_existing); Merges the fields that are set in desc_to_merge into the fields in desc . If replace_existing is FALSE, only fields in desc that are not already set are affected. If TRUE, then fields that are already set will be replaced as well. If desc_to_merge is NULL, this function performs nothing. Parameters desc a PangoFontDescription desc_to_merge the PangoFontDescription to merge from, or NULL. [allow-none] replace_existing if TRUE, replace fields in desc with the corresponding values from desc_to_merge , even if they are already exist. pango_font_description_merge_static () pango_font_description_merge_static void pango_font_description_merge_static (PangoFontDescription *desc, const PangoFontDescription *desc_to_merge, gboolean replace_existing); Like pango_font_description_merge(), but only a shallow copy is made of the family name and other allocated fields. desc can only be used until desc_to_merge is modified or freed. This is meant to be used when the merged font description is only needed temporarily. Parameters desc a PangoFontDescription desc_to_merge the PangoFontDescription to merge from replace_existing if TRUE, replace fields in desc with the corresponding values from desc_to_merge , even if they are already exist. pango_font_description_better_match () pango_font_description_better_match gboolean pango_font_description_better_match (const PangoFontDescription *desc, const PangoFontDescription *old_match, const PangoFontDescription *new_match); Determines if the style attributes of new_match are a closer match for desc than those of old_match are, or if old_match is NULL, determines if new_match is a match at all. Approximate matching is done for weight and style; other style attributes must match exactly. Style attributes are all attributes other than family and size-related attributes. Approximate matching for style considers PANGO_STYLE_OBLIQUE and PANGO_STYLE_ITALIC as matches, but not as good a match as when the styles are equal. Note that old_match must match desc . Parameters desc a PangoFontDescription old_match a PangoFontDescription, or NULL. [allow-none] new_match a PangoFontDescription Returns TRUE if new_match is a better match pango_font_description_from_string () pango_font_description_from_string PangoFontDescription * pango_font_description_from_string (const char *str); Creates a new font description from a string representation in the form "[FAMILY-LIST] [STYLE-OPTIONS] [SIZE] [VARIATIONS]", where FAMILY-LIST is a comma-separated list of families optionally terminated by a comma, STYLE_OPTIONS is a whitespace-separated list of words where each word describes one of style, variant, weight, stretch, or gravity, and SIZE is a decimal number (size in points) or optionally followed by the unit modifier "px" for absolute size. VARIATIONS is a comma-separated list of font variation specifications of the form "@axis=value" (the = sign is optional). The following words are understood as styles: "Normal", "Roman", "Oblique", "Italic". The following words are understood as variants: "Small-Caps". The following words are understood as weights: "Thin", "Ultra-Light", "Extra-Light", "Light", "Semi-Light", "Demi-Light", "Book", "Regular", "Medium", "Semi-Bold", "Demi-Bold", "Bold", "Ultra-Bold", "Extra-Bold", "Heavy", "Black", "Ultra-Black", "Extra-Black". The following words are understood as stretch values: "Ultra-Condensed", "Extra-Condensed", "Condensed", "Semi-Condensed", "Semi-Expanded", "Expanded", "Extra-Expanded", "Ultra-Expanded". The following words are understood as gravity values: "Not-Rotated", "South", "Upside-Down", "North", "Rotated-Left", "East", "Rotated-Right", "West". Any one of the options may be absent. If FAMILY-LIST is absent, then the family_name field of the resulting font description will be initialized to NULL. If STYLE-OPTIONS is missing, then all style options will be set to the default values. If SIZE is missing, the size in the resulting font description will be set to 0. A typical example: "Cantarell Italic Light 15 @wght=200" Parameters str string representation of a font description. Returns a new PangoFontDescription. pango_font_description_to_string () pango_font_description_to_string char * pango_font_description_to_string (const PangoFontDescription *desc); Creates a string representation of a font description. See pango_font_description_from_string() for a description of the format of the string representation. The family list in the string description will only have a terminating comma if the last word of the list is a valid style option. Parameters desc a PangoFontDescription Returns a new string that must be freed with g_free(). pango_font_description_to_filename () pango_font_description_to_filename char * pango_font_description_to_filename (const PangoFontDescription *desc); Creates a filename representation of a font description. The filename is identical to the result from calling pango_font_description_to_string(), but with underscores instead of characters that are untypical in filenames, and in lower case only. Parameters desc a PangoFontDescription Returns a new string that must be freed with g_free(). pango_font_metrics_ref () pango_font_metrics_ref PangoFontMetrics * pango_font_metrics_ref (PangoFontMetrics *metrics); Increase the reference count of a font metrics structure by one. Parameters metrics a PangoFontMetrics structure, may be NULL. [nullable] Returns metrics . [nullable] pango_font_metrics_unref () pango_font_metrics_unref void pango_font_metrics_unref (PangoFontMetrics *metrics); Decrease the reference count of a font metrics structure by one. If the result is zero, frees the structure and any associated memory. Parameters metrics a PangoFontMetrics structure, may be NULL. [nullable] pango_font_metrics_get_ascent () pango_font_metrics_get_ascent int pango_font_metrics_get_ascent (PangoFontMetrics *metrics); Gets the ascent from a font metrics structure. The ascent is the distance from the baseline to the logical top of a line of text. (The logical top may be above or below the top of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.) Parameters metrics a PangoFontMetrics structure Returns the ascent, in Pango units. pango_font_metrics_get_descent () pango_font_metrics_get_descent int pango_font_metrics_get_descent (PangoFontMetrics *metrics); Gets the descent from a font metrics structure. The descent is the distance from the baseline to the logical bottom of a line of text. (The logical bottom may be above or below the bottom of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.) Parameters metrics a PangoFontMetrics structure Returns the descent, in Pango units. pango_font_metrics_get_height () pango_font_metrics_get_height int pango_font_metrics_get_height (PangoFontMetrics *metrics); Gets the line height from a font metrics structure. The line height is the distance between successive baselines in wrapped text. If the line height is not available, 0 is returned. Parameters metrics a PangoFontMetrics structure Returns the height, in Pango units Since: 1.44 pango_font_metrics_get_approximate_char_width () pango_font_metrics_get_approximate_char_width int pango_font_metrics_get_approximate_char_width (PangoFontMetrics *metrics); Gets the approximate character width for a font metrics structure. This is merely a representative value useful, for example, for determining the initial size for a window. Actual characters in text will be wider and narrower than this. Parameters metrics a PangoFontMetrics structure Returns the character width, in Pango units. pango_font_metrics_get_approximate_digit_width () pango_font_metrics_get_approximate_digit_width int pango_font_metrics_get_approximate_digit_width (PangoFontMetrics *metrics); Gets the approximate digit width for a font metrics structure. This is merely a representative value useful, for example, for determining the initial size for a window. Actual digits in text can be wider or narrower than this, though this value is generally somewhat more accurate than the result of pango_font_metrics_get_approximate_char_width() for digits. Parameters metrics a PangoFontMetrics structure Returns the digit width, in Pango units. pango_font_metrics_get_underline_thickness () pango_font_metrics_get_underline_thickness int pango_font_metrics_get_underline_thickness (PangoFontMetrics *metrics); Gets the suggested thickness to draw for the underline. Parameters metrics a PangoFontMetrics structure Returns the suggested underline thickness, in Pango units. Since: 1.6 pango_font_metrics_get_underline_position () pango_font_metrics_get_underline_position int pango_font_metrics_get_underline_position (PangoFontMetrics *metrics); Gets the suggested position to draw the underline. The value returned is the distance above the baseline of the top of the underline. Since most fonts have underline positions beneath the baseline, this value is typically negative. Parameters metrics a PangoFontMetrics structure Returns the suggested underline position, in Pango units. Since: 1.6 pango_font_metrics_get_strikethrough_thickness () pango_font_metrics_get_strikethrough_thickness int pango_font_metrics_get_strikethrough_thickness (PangoFontMetrics *metrics); Gets the suggested thickness to draw for the strikethrough. Parameters metrics a PangoFontMetrics structure Returns the suggested strikethrough thickness, in Pango units. Since: 1.6 pango_font_metrics_get_strikethrough_position () pango_font_metrics_get_strikethrough_position int pango_font_metrics_get_strikethrough_position (PangoFontMetrics *metrics); Gets the suggested position to draw the strikethrough. The value returned is the distance above the baseline of the top of the strikethrough. Parameters metrics a PangoFontMetrics structure Returns the suggested strikethrough position, in Pango units. Since: 1.6 pango_font_find_shaper () pango_font_find_shaper PangoEngineShape * pango_font_find_shaper (PangoFont *font, PangoLanguage *language, guint32 ch); pango_font_find_shaper is deprecated and should not be used in newly-written code. Shape engines are no longer used Finds the best matching shaper for a font for a particular language tag and character point. Parameters font a PangoFont language the language tag ch a Unicode character. Returns the best matching shaper. [transfer none] pango_font_describe () pango_font_describe PangoFontDescription * pango_font_describe (PangoFont *font); Returns a description of the font, with font size set in points. Use pango_font_describe_with_absolute_size() if you want the font size in device units. Parameters font a PangoFont Returns a newly-allocated PangoFontDescription object. pango_font_describe_with_absolute_size () pango_font_describe_with_absolute_size PangoFontDescription * pango_font_describe_with_absolute_size (PangoFont *font); Returns a description of the font, with absolute font size set (in device units). Use pango_font_describe() if you want the font size in points. Parameters font a PangoFont Returns a newly-allocated PangoFontDescription object. Since: 1.14 pango_font_get_face () pango_font_get_face PangoFontFace * pango_font_get_face (PangoFont *font); Gets the PangoFontFace to which font belongs. Parameters font a PangoFont Returns the PangoFontFace. [transfer none] Since: 1.46 pango_font_get_coverage () pango_font_get_coverage PangoCoverage * pango_font_get_coverage (PangoFont *font, PangoLanguage *language); Computes the coverage map for a given font and language tag. Parameters font a PangoFont language the language tag Returns a newly-allocated PangoCoverage object. [transfer full] pango_font_has_char () pango_font_has_char gboolean pango_font_has_char (PangoFont *font, gunichar wc); Returns whether the font provides a glyph for this character. Returns TRUE if font can render wc Parameters font a PangoFont wc a Unicode character Since: 1.44 pango_font_get_glyph_extents () pango_font_get_glyph_extents void pango_font_get_glyph_extents (PangoFont *font, PangoGlyph glyph, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Gets the logical and ink extents of a glyph within a font. The coordinate system for each rectangle has its origin at the base line and horizontal origin of the character with increasing coordinates extending to the right and down. The macros PANGO_ASCENT(), PANGO_DESCENT(), PANGO_LBEARING(), and PANGO_RBEARING() can be used to convert from the extents rectangle to more traditional font metrics. The units of the rectangles are in 1/PANGO_SCALE of a device unit. If font is NULL, this function gracefully sets some sane values in the output variables and returns. Parameters font a PangoFont. [nullable] glyph the glyph index ink_rect rectangle used to store the extents of the glyph as drawn or NULL to indicate that the result is not needed. [out][allow-none] logical_rect rectangle used to store the logical extents of the glyph or NULL to indicate that the result is not needed. [out][allow-none] pango_font_get_metrics () pango_font_get_metrics PangoFontMetrics * pango_font_get_metrics (PangoFont *font, PangoLanguage *language); Gets overall metric information for a font. Since the metrics may be substantially different for different scripts, a language tag can be provided to indicate that the metrics should be retrieved that correspond to the script(s) used by that language. If font is NULL, this function gracefully sets some sane values in the output variables and returns. Parameters font a PangoFont. [nullable] language language tag used to determine which script to get the metrics for, or NULL to indicate to get the metrics for the entire font. [allow-none] Returns a PangoFontMetrics object. The caller must call pango_font_metrics_unref() when finished using the object. pango_font_get_font_map () pango_font_get_font_map PangoFontMap * pango_font_get_font_map (PangoFont *font); Gets the font map for which the font was created. Note that the font maintains a weak reference to the font map, so if all references to font map are dropped, the font map will be finalized even if there are fonts created with the font map that are still alive. In that case this function will return NULL. It is the responsibility of the user to ensure that the font map is kept alive. In most uses this is not an issue as a PangoContext holds a reference to the font map. Parameters font a PangoFont, or NULL. [nullable] Returns the PangoFontMap for the font, or NULL if font is NULL. [transfer none][nullable] Since: 1.10 pango_font_get_features () pango_font_get_features void pango_font_get_features (PangoFont *font, hb_feature_t *features, guint len, guint *num_features); Obtain the OpenType features that are provided by the font. These are passed to the rendering system, together with features that have been explicitly set via attributes. Note that this does not include OpenType features which the rendering system enables by default. Parameters font a PangoFont features Array to features in. [out caller-allocates][array length=len] len the length of features num_features the number of used items in features . [inout] Since: 1.44 pango_font_get_hb_font () pango_font_get_hb_font hb_font_t * pango_font_get_hb_font (PangoFont *font); Get a hb_font_t object backing this font. Note that the objects returned by this function are cached and immutable. If you need to make changes to the hb_font_t, use hb_font_create_sub_font(). [skip] Parameters font a PangoFont Returns the hb_font_t object backing the font, or NULL if the font does not have one. [transfer none][nullable] Since: 1.44 pango_font_family_get_name () pango_font_family_get_name const char * pango_font_family_get_name (PangoFontFamily *family); Gets the name of the family. The name is unique among all fonts for the font backend and can be used in a PangoFontDescription to specify that a face from this family is desired. Parameters family a PangoFontFamily Returns the name of the family. This string is owned by the family object and must not be modified or freed. pango_font_family_is_monospace () pango_font_family_is_monospace gboolean pango_font_family_is_monospace (PangoFontFamily *family); A monospace font is a font designed for text display where the the characters form a regular grid. For Western languages this would mean that the advance width of all characters are the same, but this categorization also includes Asian fonts which include double-width characters: characters that occupy two grid cells. g_unichar_iswide() returns a result that indicates whether a character is typically double-width in a monospace font. The best way to find out the grid-cell size is to call pango_font_metrics_get_approximate_digit_width(), since the results of pango_font_metrics_get_approximate_char_width() may be affected by double-width characters. Parameters family a PangoFontFamily Returns TRUE if the family is monospace. Since: 1.4 pango_font_family_is_variable () pango_font_family_is_variable gboolean pango_font_family_is_variable (PangoFontFamily *family); A variable font is a font which has axes that can be modified to produce different faces. Parameters family a PangoFontFamily Returns TRUE if the family is variable Since: 1.44 pango_font_family_list_faces () pango_font_family_list_faces void pango_font_family_list_faces (PangoFontFamily *family, PangoFontFace ***faces, int *n_faces); Lists the different font faces that make up family . The faces in a family share a common design, but differ in slant, weight, width and other aspects. Parameters family a PangoFontFamily faces location to store an array of pointers to PangoFontFace objects, or NULL. This array should be freed with g_free() when it is no longer needed. [out][allow-none][array length=n_faces][transfer container] n_faces location to store number of elements in faces . [out] pango_font_family_get_face () pango_font_family_get_face PangoFontFace * pango_font_family_get_face (PangoFontFamily *family, const char *name); Gets the PangoFontFace of family with the given name. Parameters family a PangoFontFamily name the name of a face. If the name is NULL, the family's default face (fontconfig calls it "Regular") will be returned. [nullable] Returns the PangoFontFace, or NULL if no face with the given name exists. [transfer none][nullable] Since: 1.46 pango_font_face_get_face_name () pango_font_face_get_face_name const char * pango_font_face_get_face_name (PangoFontFace *face); Gets a name representing the style of this face among the different faces in the PangoFontFamily for the face. This name is unique among all faces in the family and is suitable for displaying to users. Parameters face a PangoFontFace. Returns the face name for the face. This string is owned by the face object and must not be modified or freed. pango_font_face_list_sizes () pango_font_face_list_sizes void pango_font_face_list_sizes (PangoFontFace *face, int **sizes, int *n_sizes); List the available sizes for a font. This is only applicable to bitmap fonts. For scalable fonts, stores NULL at the location pointed to by sizes and 0 at the location pointed to by n_sizes . The sizes returned are in Pango units and are sorted in ascending order. Parameters face a PangoFontFace. sizes location to store a pointer to an array of int. This array should be freed with g_free(). [out][array length=n_sizes][nullable][optional] n_sizes location to store the number of elements in sizes Since: 1.4 pango_font_face_describe () pango_font_face_describe PangoFontDescription * pango_font_face_describe (PangoFontFace *face); Returns the family, style, variant, weight and stretch of a PangoFontFace. The size field of the resulting font description will be unset. Parameters face a PangoFontFace Returns a newly-created PangoFontDescription structure holding the description of the face. Use pango_font_description_free() to free the result. pango_font_face_is_synthesized () pango_font_face_is_synthesized gboolean pango_font_face_is_synthesized (PangoFontFace *face); Returns whether a PangoFontFace is synthesized by the underlying font rendering engine from another face, perhaps by shearing, emboldening, or lightening it. Parameters face a PangoFontFace Returns whether face is synthesized. Since: 1.18 pango_font_face_get_family () pango_font_face_get_family PangoFontFamily * pango_font_face_get_family (PangoFontFace *face); Gets the PangoFontFamily that face belongs to. Parameters face a PangoFontFace Returns the PangoFontFamily. [transfer none] Since: 1.46 pango_font_map_create_context () pango_font_map_create_context PangoContext * pango_font_map_create_context (PangoFontMap *fontmap); Creates a PangoContext connected to fontmap . This is equivalent to pango_context_new() followed by pango_context_set_font_map(). If you are using Pango as part of a higher-level system, that system may have it's own way of create a PangoContext. For instance, the GTK+ toolkit has, among others, gdk_pango_context_get_for_screen(), and gtk_widget_get_pango_context(). Use those instead. Parameters fontmap a PangoFontMap Returns the newly allocated PangoContext, which should be freed with g_object_unref(). [transfer full] Since: 1.22 pango_font_map_load_font () pango_font_map_load_font PangoFont * pango_font_map_load_font (PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc); Load the font in the fontmap that is the closest match for desc . Parameters fontmap a PangoFontMap context the PangoContext the font will be used with desc a PangoFontDescription describing the font to load Returns the newly allocated PangoFont loaded, or NULL if no font matched. [transfer full][nullable] pango_font_map_load_fontset () pango_font_map_load_fontset PangoFontset * pango_font_map_load_fontset (PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language); Load a set of fonts in the fontmap that can be used to render a font matching desc . Parameters fontmap a PangoFontMap context the PangoContext the font will be used with desc a PangoFontDescription describing the font to load language a PangoLanguage the fonts will be used for Returns the newly allocated PangoFontset loaded, or NULL if no font matched. [transfer full][nullable] pango_font_map_list_families () pango_font_map_list_families void pango_font_map_list_families (PangoFontMap *fontmap, PangoFontFamily ***families, int *n_families); List all families for a fontmap. Parameters fontmap a PangoFontMap families location to store a pointer to an array of PangoFontFamily *. This array should be freed with g_free(). [out][array length=n_families][transfer container] n_families location to store the number of elements in families . [out] pango_font_map_get_family () pango_font_map_get_family PangoFontFamily * pango_font_map_get_family (PangoFontMap *fontmap, const char *name); Gets a font family by name. Parameters fontmap a PangoFontMap name a family name Returns the PangoFontFamily. [transfer none] Since: 1.46 pango_font_map_get_serial () pango_font_map_get_serial guint pango_font_map_get_serial (PangoFontMap *fontmap); Returns the current serial number of fontmap . The serial number is initialized to an small number larger than zero when a new fontmap is created and is increased whenever the fontmap is changed. It may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals". The fontmap can only be changed using backend-specific API, like changing fontmap resolution. This can be used to automatically detect changes to a PangoFontMap, like in PangoContext. Parameters fontmap a PangoFontMap Returns The current serial number of fontmap . Since: 1.32.4 pango_font_map_changed () pango_font_map_changed void pango_font_map_changed (PangoFontMap *fontmap); Forces a change in the context, which will cause any PangoContext using this fontmap to change. This function is only useful when implementing a new backend for Pango, something applications won't do. Backends should call this function if they have attached extra data to the context and such data is changed. Parameters fontmap a PangoFontMap Since: 1.34 pango_fontset_get_font () pango_fontset_get_font PangoFont * pango_fontset_get_font (PangoFontset *fontset, guint wc); Returns the font in the fontset that contains the best glyph for the Unicode character wc . Parameters fontset a PangoFontset wc a Unicode character Returns a PangoFont. The caller must call g_object_unref when finished with the font. [transfer full] pango_fontset_get_metrics () pango_fontset_get_metrics PangoFontMetrics * pango_fontset_get_metrics (PangoFontset *fontset); Get overall metric information for the fonts in the fontset. Parameters fontset a PangoFontset Returns a PangoFontMetrics object. The caller must call pango_font_metrics_unref() when finished using the object. PangoFontsetForeachFunc () PangoFontsetForeachFunc gboolean (*PangoFontsetForeachFunc) (PangoFontset *fontset, PangoFont *font, gpointer user_data); A callback function used by pango_fontset_foreach() when enumerating the fonts in a fontset. Parameters fontset a PangoFontset font a font from fontset user_data callback data Returns if TRUE, stop iteration and return immediately. Since: 1.4 pango_fontset_foreach () pango_fontset_foreach void pango_fontset_foreach (PangoFontset *fontset, PangoFontsetForeachFunc func, gpointer data); Iterates through all the fonts in a fontset, calling func for each one. If func returns TRUE, that stops the iteration. Parameters fontset a PangoFontset func Callback function. [closure data][scope call] data data to pass to the callback function. [closure] Since: 1.4 Types and Values PangoFontDescription PangoFontDescription typedef struct _PangoFontDescription PangoFontDescription; The PangoFontDescription structure represents the description of an ideal font. These structures are used both to list what fonts are available on the system and also for specifying the characteristics of a font to load. enum PangoStyle PangoStyle An enumeration specifying the various slant styles possible for a font. Members PANGO_STYLE_NORMAL the font is upright. PANGO_STYLE_OBLIQUE the font is slanted, but in a roman style. PANGO_STYLE_ITALIC the font is slanted in an italic style. enum PangoWeight PangoWeight An enumeration specifying the weight (boldness) of a font. This is a numerical value ranging from 100 to 1000, but there are some predefined values: Members PANGO_WEIGHT_THIN the thin weight (= 100; Since: 1.24) PANGO_WEIGHT_ULTRALIGHT the ultralight weight (= 200) PANGO_WEIGHT_LIGHT the light weight (= 300) PANGO_WEIGHT_SEMILIGHT the semilight weight (= 350; Since: 1.36.7) PANGO_WEIGHT_BOOK the book weight (= 380; Since: 1.24) PANGO_WEIGHT_NORMAL the default weight (= 400) PANGO_WEIGHT_MEDIUM the normal weight (= 500; Since: 1.24) PANGO_WEIGHT_SEMIBOLD the semibold weight (= 600) PANGO_WEIGHT_BOLD the bold weight (= 700) PANGO_WEIGHT_ULTRABOLD the ultrabold weight (= 800) PANGO_WEIGHT_HEAVY the heavy weight (= 900) PANGO_WEIGHT_ULTRAHEAVY the ultraheavy weight (= 1000; Since: 1.24) enum PangoVariant PangoVariant An enumeration specifying capitalization variant of the font. Members PANGO_VARIANT_NORMAL A normal font. PANGO_VARIANT_SMALL_CAPS A font with the lower case characters replaced by smaller variants of the capital characters. enum PangoStretch PangoStretch An enumeration specifying the width of the font relative to other designs within a family. Members PANGO_STRETCH_ULTRA_CONDENSED ultra condensed width PANGO_STRETCH_EXTRA_CONDENSED extra condensed width PANGO_STRETCH_CONDENSED condensed width PANGO_STRETCH_SEMI_CONDENSED semi condensed width PANGO_STRETCH_NORMAL the normal width PANGO_STRETCH_SEMI_EXPANDED semi expanded width PANGO_STRETCH_EXPANDED expanded width PANGO_STRETCH_EXTRA_EXPANDED extra expanded width PANGO_STRETCH_ULTRA_EXPANDED ultra expanded width enum PangoFontMask PangoFontMask The bits in a PangoFontMask correspond to fields in a PangoFontDescription that have been set. Members PANGO_FONT_MASK_FAMILY the font family is specified. PANGO_FONT_MASK_STYLE the font style is specified. PANGO_FONT_MASK_VARIANT the font variant is specified. PANGO_FONT_MASK_WEIGHT the font weight is specified. PANGO_FONT_MASK_STRETCH the font stretch is specified. PANGO_FONT_MASK_SIZE the font size is specified. PANGO_FONT_MASK_GRAVITY the font gravity is specified (Since: 1.16.) PANGO_FONT_MASK_VARIATIONS OpenType font variations are specified (Since: 1.42) struct PangoFontMetrics PangoFontMetrics struct PangoFontMetrics { }; A PangoFontMetrics structure holds the overall metric information for a font (possibly restricted to a script). The fields of this structure are private to implementations of a font backend. See the documentation of the corresponding getters for documentation of their meaning. PangoFont PangoFont typedef struct _PangoFont PangoFont; PangoFont is deprecated and should not be used in newly-written code. The PangoFont structure is used to represent a font in a rendering-system-independent matter. To create an implementation of a PangoFont, the rendering-system specific code should allocate a larger structure that contains a nested PangoFont, fill in the klass member of the nested PangoFont with a pointer to a appropriate PangoFontClass, then call pango_font_init() on the structure. The PangoFont structure contains one member which the implementation fills in. struct PangoFontFamily PangoFontFamily struct PangoFontFamily; PangoFontFamily is deprecated and should not be used in newly-written code. The PangoFontFamily structure is used to represent a family of related font faces. The faces in a family share a common design, but differ in slant, weight, width and other aspects. struct PangoFontFace PangoFontFace struct PangoFontFace; PangoFontFace is deprecated and should not be used in newly-written code. The PangoFontFace structure is used to represent a group of fonts with the same family, slant, weight, width, but varying sizes. PangoFontMap PangoFontMap typedef struct _PangoFontMap PangoFontMap; The PangoFontMap represents the set of fonts available for a particular rendering system. This is a virtual object with implementations being specific to particular rendering systems. To create an implementation of a PangoFontMap, the rendering-system specific code should allocate a larger structure that contains a nested PangoFontMap, fill in the klass member of the nested PangoFontMap with a pointer to a appropriate PangoFontMapClass, then call pango_font_map_init() on the structure. The PangoFontMap structure contains one member which the implementation fills in. struct PangoFontMapClass PangoFontMapClass struct PangoFontMapClass { GObjectClass parent_class; PangoFont * (*load_font) (PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc); void (*list_families) (PangoFontMap *fontmap, PangoFontFamily ***families, int *n_families); PangoFontset *(*load_fontset) (PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language); const char *shape_engine_type; guint (*get_serial) (PangoFontMap *fontmap); void (*changed) (PangoFontMap *fontmap); PangoFontFamily * (*get_family) (PangoFontMap *fontmap, const char *name); PangoFontFace * (*get_face) (PangoFontMap *fontmap, PangoFont *font); }; The PangoFontMapClass structure holds the virtual functions for a particular PangoFontMap implementation. Members load_font () a function to load a font with a given description. See pango_font_map_load_font(). list_families () A function to list available font families. See pango_font_map_list_families(). load_fontset () a function to load a fontset with a given given description suitable for a particular language. See pango_font_map_load_fontset(). const char *shape_engine_type; the type of rendering-system-dependent engines that can handle fonts of this fonts loaded with this fontmap. get_serial () a function to get the serial number of the fontmap. See pango_font_map_get_serial(). changed () See pango_font_map_changed() get_family () get_face () struct PangoFontset PangoFontset struct PangoFontset; A PangoFontset represents a set of PangoFont to use when rendering text. It is the result of resolving a PangoFontDescription against a particular PangoContext. It has operations for finding the component font for a particular Unicode character, and for finding a composite set of metrics for the entire fontset. struct PangoFontsetClass PangoFontsetClass struct PangoFontsetClass { GObjectClass parent_class; PangoFont * (*get_font) (PangoFontset *fontset, guint wc); PangoFontMetrics *(*get_metrics) (PangoFontset *fontset); PangoLanguage * (*get_language) (PangoFontset *fontset); void (*foreach) (PangoFontset *fontset, PangoFontsetForeachFunc func, gpointer data); }; The PangoFontsetClass structure holds the virtual functions for a particular PangoFontset implementation. Members get_font () a function to get the font in the fontset that contains the best glyph for the given Unicode character; see pango_fontset_get_font(). get_metrics () a function to get overall metric information for the fonts in the fontset; see pango_fontset_get_metrics(). get_language () a function to get the language of the fontset. foreach () a function to loop over the fonts in the fontset. See pango_fontset_foreach(). docs/xml/api-index-1.46.xml0000664000175000017500000000525214002404352015422 0ustar mclasenmclasen ]> A pango_attr_list_equal, function in Text Attributes pango_attr_overline_color_new, function in Text Attributes pango_attr_overline_new, function in Text Attributes C pango_color_parse_with_alpha, function in Text Attributes F pango_font_face_get_family, function in Fonts pango_font_family_get_face, function in Fonts pango_font_get_face, function in Fonts pango_font_map_get_family, function in Fonts L pango_layout_get_direction, function in Layout Objects O PangoOverline, enum in Text Attributes docs/xml/text-attributes.xml0000664000175000017500000057002614002404352016334 0ustar mclasenmclasen ]> Attributes 3 PANGO Library Attributes Font and other attributes for annotating text Functions PangoAttrType pango_attr_type_register () const char * pango_attr_type_get_name () void pango_attribute_init () PangoAttribute * pango_attribute_copy () gboolean pango_attribute_equal () void pango_attribute_destroy () PangoAttribute * pango_attr_language_new () PangoAttribute * pango_attr_family_new () PangoAttribute * pango_attr_style_new () PangoAttribute * pango_attr_variant_new () PangoAttribute * pango_attr_stretch_new () PangoAttribute * pango_attr_weight_new () PangoAttribute * pango_attr_size_new () PangoAttribute * pango_attr_size_new_absolute () PangoAttribute * pango_attr_font_desc_new () PangoAttribute * pango_attr_foreground_new () PangoAttribute * pango_attr_background_new () PangoAttribute * pango_attr_strikethrough_new () PangoAttribute * pango_attr_strikethrough_color_new () PangoAttribute * pango_attr_underline_new () PangoAttribute * pango_attr_underline_color_new () PangoAttribute * pango_attr_overline_new () PangoAttribute * pango_attr_overline_color_new () PangoAttribute * pango_attr_shape_new () PangoAttribute * pango_attr_shape_new_with_data () gpointer (*PangoAttrDataCopyFunc) () PangoAttribute * pango_attr_scale_new () PangoAttribute * pango_attr_rise_new () PangoAttribute * pango_attr_letter_spacing_new () PangoAttribute * pango_attr_fallback_new () PangoAttribute * pango_attr_gravity_new () PangoAttribute * pango_attr_gravity_hint_new () PangoAttribute * pango_attr_font_features_new () PangoAttribute * pango_attr_foreground_alpha_new () PangoAttribute * pango_attr_background_alpha_new () PangoAttribute * pango_attr_allow_breaks_new () PangoAttribute * pango_attr_insert_hyphens_new () PangoAttribute * pango_attr_show_new () gboolean pango_color_parse () gboolean pango_color_parse_with_alpha () PangoColor * pango_color_copy () void pango_color_free () gchar * pango_color_to_string () PangoAttrList * pango_attr_list_new () PangoAttrList * pango_attr_list_ref () void pango_attr_list_unref () PangoAttrList * pango_attr_list_copy () void pango_attr_list_insert () void pango_attr_list_insert_before () void pango_attr_list_change () void pango_attr_list_splice () PangoAttrList * pango_attr_list_filter () void pango_attr_list_update () gboolean (*PangoAttrFilterFunc) () GSList * pango_attr_list_get_attributes () gboolean pango_attr_list_equal () PangoAttrIterator * pango_attr_list_get_iterator () PangoAttrIterator * pango_attr_iterator_copy () gboolean pango_attr_iterator_next () void pango_attr_iterator_range () PangoAttribute * pango_attr_iterator_get () void pango_attr_iterator_get_font () GSList * pango_attr_iterator_get_attrs () void pango_attr_iterator_destroy () Types and Values enumPangoAttrType structPangoAttrClass structPangoAttribute #definePANGO_ATTR_INDEX_FROM_TEXT_BEGINNING #definePANGO_ATTR_INDEX_TO_TEXT_END structPangoAttrString structPangoAttrLanguage structPangoAttrColor structPangoAttrInt structPangoAttrFloat structPangoAttrFontDesc structPangoAttrShape structPangoAttrSize structPangoAttrFontFeatures enumPangoUnderline enumPangoOverline #definePANGO_SCALE_XX_SMALL #definePANGO_SCALE_X_SMALL #definePANGO_SCALE_SMALL #definePANGO_SCALE_MEDIUM #definePANGO_SCALE_LARGE #definePANGO_SCALE_X_LARGE #definePANGO_SCALE_XX_LARGE enumPangoShowFlags structPangoColor PangoAttrList PangoAttrIterator Object Hierarchy GBoxed ├── PangoAttrIterator ├── PangoAttrList ├── PangoAttribute ╰── PangoColor GEnum ├── PangoAttrType ╰── PangoUnderline GFlags ╰── PangoShowFlags Description Attributed text is used in a number of places in Pango. It is used as the input to the itemization process and also when creating a PangoLayout. The data types and functions in this section are used to represent and manipulate sets of attributes applied to a portion of text. Functions pango_attr_type_register () pango_attr_type_register PangoAttrType pango_attr_type_register (const gchar *name); Allocate a new attribute type ID. The attribute type name can be accessed later by using pango_attr_type_get_name(). Parameters name an identifier for the type Returns the new type ID. pango_attr_type_get_name () pango_attr_type_get_name const char * pango_attr_type_get_name (PangoAttrType type); Fetches the attribute type name passed in when registering the type using pango_attr_type_register(). The returned value is an interned string (see g_intern_string() for what that means) that should not be modified or freed. Parameters type an attribute type ID to fetch the name for Returns the type ID name (which may be NULL), or NULL if type is a built-in Pango attribute type or invalid. [nullable] Since: 1.22 pango_attribute_init () pango_attribute_init void pango_attribute_init (PangoAttribute *attr, const PangoAttrClass *klass); Initializes attr 's klass to klass , it's start_index to PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING and end_index to PANGO_ATTR_INDEX_TO_TEXT_END such that the attribute applies to the entire text by default. Parameters attr a PangoAttribute klass a PangoAttrClass Since: 1.20 pango_attribute_copy () pango_attribute_copy PangoAttribute * pango_attribute_copy (const PangoAttribute *attr); Make a copy of an attribute. Parameters attr a PangoAttribute Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attribute_equal () pango_attribute_equal gboolean pango_attribute_equal (const PangoAttribute *attr1, const PangoAttribute *attr2); Compare two attributes for equality. This compares only the actual value of the two attributes and not the ranges that the attributes apply to. Parameters attr1 a PangoAttribute attr2 another PangoAttribute Returns TRUE if the two attributes have the same value. pango_attribute_destroy () pango_attribute_destroy void pango_attribute_destroy (PangoAttribute *attr); Destroy a PangoAttribute and free all associated memory. Parameters attr a PangoAttribute. pango_attr_language_new () pango_attr_language_new PangoAttribute * pango_attr_language_new (PangoLanguage *language); Create a new language tag attribute. Parameters language language tag Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_family_new () pango_attr_family_new PangoAttribute * pango_attr_family_new (const char *family); Create a new font family attribute. Parameters family the family or comma separated list of families Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_style_new () pango_attr_style_new PangoAttribute * pango_attr_style_new (PangoStyle style); Create a new font slant style attribute. Parameters style the slant style Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_variant_new () pango_attr_variant_new PangoAttribute * pango_attr_variant_new (PangoVariant variant); Create a new font variant attribute (normal or small caps) Parameters variant the variant Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_stretch_new () pango_attr_stretch_new PangoAttribute * pango_attr_stretch_new (PangoStretch stretch); Create a new font stretch attribute Parameters stretch the stretch Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_weight_new () pango_attr_weight_new PangoAttribute * pango_attr_weight_new (PangoWeight weight); Create a new font weight attribute. Parameters weight the weight Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_size_new () pango_attr_size_new PangoAttribute * pango_attr_size_new (int size); Create a new font-size attribute in fractional points. Parameters size the font size, in PANGO_SCALEths of a point. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_size_new_absolute () pango_attr_size_new_absolute PangoAttribute * pango_attr_size_new_absolute (int size); Create a new font-size attribute in device units. Parameters size the font size, in PANGO_SCALEths of a device unit. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). Since: 1.8 pango_attr_font_desc_new () pango_attr_font_desc_new PangoAttribute * pango_attr_font_desc_new (const PangoFontDescription *desc); Create a new font description attribute. This attribute allows setting family, style, weight, variant, stretch, and size simultaneously. Parameters desc the font description Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_foreground_new () pango_attr_foreground_new PangoAttribute * pango_attr_foreground_new (guint16 red, guint16 green, guint16 blue); Create a new foreground color attribute. Parameters red the red value (ranging from 0 to 65535) green the green value blue the blue value Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_background_new () pango_attr_background_new PangoAttribute * pango_attr_background_new (guint16 red, guint16 green, guint16 blue); Create a new background color attribute. Parameters red the red value (ranging from 0 to 65535) green the green value blue the blue value Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_strikethrough_new () pango_attr_strikethrough_new PangoAttribute * pango_attr_strikethrough_new (gboolean strikethrough); Create a new strike-through attribute. Parameters strikethrough TRUE if the text should be struck-through. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_strikethrough_color_new () pango_attr_strikethrough_color_new PangoAttribute * pango_attr_strikethrough_color_new (guint16 red, guint16 green, guint16 blue); Create a new strikethrough color attribute. This attribute modifies the color of strikethrough lines. If not set, strikethrough lines will use the foreground color. Parameters red the red value (ranging from 0 to 65535) green the green value blue the blue value Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.8 pango_attr_underline_new () pango_attr_underline_new PangoAttribute * pango_attr_underline_new (PangoUnderline underline); Create a new underline-style attribute. Parameters underline the underline style. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_underline_color_new () pango_attr_underline_color_new PangoAttribute * pango_attr_underline_color_new (guint16 red, guint16 green, guint16 blue); Create a new underline color attribute. This attribute modifies the color of underlines. If not set, underlines will use the foreground color. Parameters red the red value (ranging from 0 to 65535) green the green value blue the blue value Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.8 pango_attr_overline_new () pango_attr_overline_new PangoAttribute * pango_attr_overline_new (PangoOverline overline); Create a new overline-style attribute. Parameters overline the overline style Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.46 pango_attr_overline_color_new () pango_attr_overline_color_new PangoAttribute * pango_attr_overline_color_new (guint16 red, guint16 green, guint16 blue); Create a new overline color attribute. This attribute modifies the color of overlines. If not set, overlines will use the foreground color. Parameters red the red value (ranging from 0 to 65535) green the green value blue the blue value Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.46 pango_attr_shape_new () pango_attr_shape_new PangoAttribute * pango_attr_shape_new (const PangoRectangle *ink_rect, const PangoRectangle *logical_rect); Create a new shape attribute. A shape is used to impose a particular ink and logical rectangle on the result of shaping a particular glyph. This might be used, for instance, for embedding a picture or a widget inside a PangoLayout. Parameters ink_rect ink rectangle to assign to each character logical_rect logical rectangle to assign to each character Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_shape_new_with_data () pango_attr_shape_new_with_data PangoAttribute * pango_attr_shape_new_with_data (const PangoRectangle *ink_rect, const PangoRectangle *logical_rect, gpointer data, PangoAttrDataCopyFunc copy_func, GDestroyNotify destroy_func); Like pango_attr_shape_new(), but a user data pointer is also provided; this pointer can be accessed when later rendering the glyph. Parameters ink_rect ink rectangle to assign to each character logical_rect logical rectangle to assign to each character data user data pointer copy_func function to copy data when the attribute is copied. If NULL, data is simply copied as a pointer. [allow-none] destroy_func function to free data when the attribute is freed, or NULL. [allow-none] Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). Since: 1.8 PangoAttrDataCopyFunc () PangoAttrDataCopyFunc gpointer (*PangoAttrDataCopyFunc) (gconstpointer user_data); Type of a function that can duplicate user data for an attribute. Parameters user_data user data to copy Returns new copy of user_data . pango_attr_scale_new () pango_attr_scale_new PangoAttribute * pango_attr_scale_new (double scale_factor); Create a new font size scale attribute. The base font for the affected text will have its size multiplied by scale_factor . Parameters scale_factor factor to scale the font Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_rise_new () pango_attr_rise_new PangoAttribute * pango_attr_rise_new (int rise); Create a new baseline displacement attribute. Parameters rise the amount that the text should be displaced vertically, in Pango units. Positive values displace the text upwards. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] pango_attr_letter_spacing_new () pango_attr_letter_spacing_new PangoAttribute * pango_attr_letter_spacing_new (int letter_spacing); Create a new letter-spacing attribute. Parameters letter_spacing amount of extra space to add between graphemes of the text, in Pango units. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.6 pango_attr_fallback_new () pango_attr_fallback_new PangoAttribute * pango_attr_fallback_new (gboolean enable_fallback); Create a new font fallback attribute. If fallback is disabled, characters will only be used from the closest matching font on the system. No fallback will be done to other fonts on the system that might contain the characters in the text. Parameters enable_fallback TRUE if we should fall back on other fonts for characters the active font is missing. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.4 pango_attr_gravity_new () pango_attr_gravity_new PangoAttribute * pango_attr_gravity_new (PangoGravity gravity); Create a new gravity attribute. Parameters gravity the gravity value; should not be PANGO_GRAVITY_AUTO. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.16 pango_attr_gravity_hint_new () pango_attr_gravity_hint_new PangoAttribute * pango_attr_gravity_hint_new (PangoGravityHint hint); Create a new gravity hint attribute. Parameters hint the gravity hint value. Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.16 pango_attr_font_features_new () pango_attr_font_features_new PangoAttribute * pango_attr_font_features_new (const gchar *features); Create a new font features tag attribute. Parameters features a string with OpenType font features, in CSS syntax Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.38 pango_attr_foreground_alpha_new () pango_attr_foreground_alpha_new PangoAttribute * pango_attr_foreground_alpha_new (guint16 alpha); Create a new foreground alpha attribute. Parameters alpha the alpha value, between 1 and 65536 Returns the new allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.38 pango_attr_background_alpha_new () pango_attr_background_alpha_new PangoAttribute * pango_attr_background_alpha_new (guint16 alpha); Create a new background alpha attribute. Parameters alpha the alpha value, between 1 and 65536 Returns the new allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.38 pango_attr_allow_breaks_new () pango_attr_allow_breaks_new PangoAttribute * pango_attr_allow_breaks_new (gboolean allow_breaks); Create a new allow-breaks attribute. If breaks are disabled, the range will be kept in a single run, as far as possible. Parameters allow_breaks TRUE if we line breaks are allowed Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.44 pango_attr_insert_hyphens_new () pango_attr_insert_hyphens_new PangoAttribute * pango_attr_insert_hyphens_new (gboolean insert_hyphens); Create a new insert-hyphens attribute. Pango will insert hyphens when breaking lines in the middle of a word. This attribute can be used to suppress the hyphen. Parameters insert_hyphens TRUE if hyphens should be inserted Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.44 pango_attr_show_new () pango_attr_show_new PangoAttribute * pango_attr_show_new (PangoShowFlags flags); Create a new attribute that influences how invisible characters are rendered. Parameters flags PangoShowFlags to apply Returns the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy(). [transfer full] Since: 1.44 pango_color_parse () pango_color_parse gboolean pango_color_parse (PangoColor *color, const char *spec); Fill in the fields of a color from a string specification. The string can either one of a large set of standard names. (Taken from the CSS specification), or it can be a hexadecimal value in the form '#rgb' '#rrggbb' '#rrrgggbbb' or '#rrrrggggbbbb' where 'r', 'g' and 'b' are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is '#fff' '#ffffff' '#fffffffff' and '#ffffffffffff') Parameters color a PangoColor structure in which to store the result, or NULL. [nullable] spec a string specifying the new color Returns TRUE if parsing of the specifier succeeded, otherwise false. pango_color_parse_with_alpha () pango_color_parse_with_alpha gboolean pango_color_parse_with_alpha (PangoColor *color, guint16 *alpha, const char *spec); Fill in the fields of a color from a string specification. The string can either one of a large set of standard names. (Taken from the CSS specification), or it can be a hexadecimal value in the form '#rgb' '#rrggbb' '#rrrgggbbb' or '#rrrrggggbbbb' where 'r', 'g' and 'b' are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is '#fff' '#ffffff' '#fffffffff' and '#ffffffffffff') Additionally, parse strings of the form '#rgba', '#rrggbbaa', '#rrrrggggbbbbaaaa', if alpha is not NULL, and set alpha to the value specified by the hex digits for 'a'. If no alpha component is found in spec , alpha is set to 0xffff (for a solid color). Parameters color a PangoColor structure in which to store the result, or NULL. [nullable] alpha return location for alpha, or NULL. [out][optional] spec a string specifying the new color Returns TRUE if parsing of the specifier succeeded, otherwise false. Since: 1.46 pango_color_copy () pango_color_copy PangoColor * pango_color_copy (const PangoColor *src); Creates a copy of src , which should be freed with pango_color_free(). Primarily used by language bindings, not that useful otherwise (since colors can just be copied by assignment in C). Parameters src color to copy, may be NULL. [nullable] Returns the newly allocated PangoColor, which should be freed with pango_color_free(), or NULL if src was NULL. [nullable] pango_color_free () pango_color_free void pango_color_free (PangoColor *color); Frees a color allocated by pango_color_copy(). Parameters color an allocated PangoColor, may be NULL. [nullable] pango_color_to_string () pango_color_to_string gchar * pango_color_to_string (const PangoColor *color); Returns a textual specification of color in the hexadecimal form #rrrrggggbbbb, where r, g and b are hex digits representing the red, green, and blue components respectively. Parameters color a PangoColor Returns a newly-allocated text string that must be freed with g_free(). Since: 1.16 pango_attr_list_new () pango_attr_list_new PangoAttrList * pango_attr_list_new (void); Create a new empty attribute list with a reference count of one. Returns the newly allocated PangoAttrList, which should be freed with pango_attr_list_unref(). [transfer full] pango_attr_list_ref () pango_attr_list_ref PangoAttrList * pango_attr_list_ref (PangoAttrList *list); Increase the reference count of the given attribute list by one. Parameters list a PangoAttrList, may be NULL. [nullable] Returns The attribute list passed in Since: 1.10 pango_attr_list_unref () pango_attr_list_unref void pango_attr_list_unref (PangoAttrList *list); Decrease the reference count of the given attribute list by one. If the result is zero, free the attribute list and the attributes it contains. Parameters list a PangoAttrList, may be NULL. [nullable] pango_attr_list_copy () pango_attr_list_copy PangoAttrList * pango_attr_list_copy (PangoAttrList *list); Copy list and return an identical new list. Parameters list a PangoAttrList, may be NULL. [nullable] Returns the newly allocated PangoAttrList, with a reference count of one, which should be freed with pango_attr_list_unref(). Returns NULL if list was NULL. [nullable] pango_attr_list_insert () pango_attr_list_insert void pango_attr_list_insert (PangoAttrList *list, PangoAttribute *attr); Insert the given attribute into the PangoAttrList. It will be inserted after all other attributes with a matching start_index . Parameters list a PangoAttrList attr the attribute to insert. Ownership of this value is assumed by the list. [transfer full] pango_attr_list_insert_before () pango_attr_list_insert_before void pango_attr_list_insert_before (PangoAttrList *list, PangoAttribute *attr); Insert the given attribute into the PangoAttrList. It will be inserted before all other attributes with a matching start_index . Parameters list a PangoAttrList attr the attribute to insert. Ownership of this value is assumed by the list. [transfer full] pango_attr_list_change () pango_attr_list_change void pango_attr_list_change (PangoAttrList *list, PangoAttribute *attr); Insert the given attribute into the PangoAttrList. It will replace any attributes of the same type on that segment and be merged with any adjoining attributes that are identical. This function is slower than pango_attr_list_insert() for creating an attribute list in order (potentially much slower for large lists). However, pango_attr_list_insert() is not suitable for continually changing a set of attributes since it never removes or combines existing attributes. Parameters list a PangoAttrList attr the attribute to insert. Ownership of this value is assumed by the list. [transfer full] pango_attr_list_splice () pango_attr_list_splice void pango_attr_list_splice (PangoAttrList *list, PangoAttrList *other, gint pos, gint len); This function opens up a hole in list , fills it in with attributes from the left, and then merges other on top of the hole. This operation is equivalent to stretching every attribute that applies at position pos in list by an amount len , and then calling pango_attr_list_change() with a copy of each attribute in other in sequence (offset in position by pos ). This operation proves useful for, for instance, inserting a pre-edit string in the middle of an edit buffer. Parameters list a PangoAttrList other another PangoAttrList pos the position in list at which to insert other len the length of the spliced segment. (Note that this must be specified since the attributes in other may only be present at some subsection of this range) pango_attr_list_filter () pango_attr_list_filter PangoAttrList * pango_attr_list_filter (PangoAttrList *list, PangoAttrFilterFunc func, gpointer data); Given a PangoAttrList and callback function, removes any elements of list for which func returns TRUE and inserts them into a new list. Parameters list a PangoAttrList func callback function; returns TRUE if an attribute should be filtered out. [scope call][closure data] data Data to be passed to func . [closure] Returns the new PangoAttrList or NULL if no attributes of the given types were found. [transfer full][nullable] Since: 1.2 pango_attr_list_update () pango_attr_list_update void pango_attr_list_update (PangoAttrList *list, int pos, int remove, int add); Update indices of attributes in list for a change in the text they refer to. The change that this function applies is removing remove bytes at position pos and inserting add bytes instead. Attributes that fall entirely in the (pos , pos + remove ) range are removed. Attributes that start or end inside the (pos , pos + remove ) range are shortened to reflect the removal. Attributes start and end positions are updated if they are behind pos + remove . Parameters list a PangoAttrList pos the position of the change remove the number of removed bytes add the number of added bytes Since: 1.44 PangoAttrFilterFunc () PangoAttrFilterFunc gboolean (*PangoAttrFilterFunc) (PangoAttribute *attribute, gpointer user_data); Type of a function filtering a list of attributes. Parameters attribute a Pango attribute user_data user data passed to the function Returns TRUE if the attribute should be selected for filtering, FALSE otherwise. pango_attr_list_get_attributes () pango_attr_list_get_attributes GSList * pango_attr_list_get_attributes (PangoAttrList *list); Gets a list of all attributes in list . Parameters list a PangoAttrList Returns a list of all attributes in list . To free this value, call pango_attribute_destroy() on each value and g_slist_free() on the list. [element-type Pango.Attribute][transfer full] Since: 1.44 pango_attr_list_equal () pango_attr_list_equal gboolean pango_attr_list_equal (PangoAttrList *list, PangoAttrList *other_list); Checks whether list and other_list contain the same attributes and whether those attributes apply to the same ranges. Beware that this will return wrong values if any list contains duplicates. Parameters list a PangoAttrList other_list the other PangoAttrList Returns TRUE if the lists are equal, FALSE if they aren't. Since: 1.46 pango_attr_list_get_iterator () pango_attr_list_get_iterator PangoAttrIterator * pango_attr_list_get_iterator (PangoAttrList *list); Create a iterator initialized to the beginning of the list. list must not be modified until this iterator is freed. Parameters list a PangoAttrList Returns the newly allocated PangoAttrIterator, which should be freed with pango_attr_iterator_destroy(). [transfer full] pango_attr_iterator_copy () pango_attr_iterator_copy PangoAttrIterator * pango_attr_iterator_copy (PangoAttrIterator *iterator); Copy a PangoAttrIterator Parameters iterator a PangoAttrIterator. Returns the newly allocated PangoAttrIterator, which should be freed with pango_attr_iterator_destroy(). [transfer full] pango_attr_iterator_next () pango_attr_iterator_next gboolean pango_attr_iterator_next (PangoAttrIterator *iterator); Advance the iterator until the next change of style. Parameters iterator a PangoAttrIterator Returns FALSE if the iterator is at the end of the list, otherwise TRUE pango_attr_iterator_range () pango_attr_iterator_range void pango_attr_iterator_range (PangoAttrIterator *iterator, gint *start, gint *end); Get the range of the current segment. Note that the stored return values are signed, not unsigned like the values in PangoAttribute. To deal with this API oversight, stored return values that wouldn't fit into a signed integer are clamped to G_MAXINT. Parameters iterator a PangoAttrIterator start location to store the start of the range. [out] end location to store the end of the range. [out] pango_attr_iterator_get () pango_attr_iterator_get PangoAttribute * pango_attr_iterator_get (PangoAttrIterator *iterator, PangoAttrType type); Find the current attribute of a particular type at the iterator location. When multiple attributes of the same type overlap, the attribute whose range starts closest to the current location is used. Parameters iterator a PangoAttrIterator type the type of attribute to find. Returns the current attribute of the given type, or NULL if no attribute of that type applies to the current location. [nullable][transfer none] pango_attr_iterator_get_font () pango_attr_iterator_get_font void pango_attr_iterator_get_font (PangoAttrIterator *iterator, PangoFontDescription *desc, PangoLanguage **language, GSList **extra_attrs); Get the font and other attributes at the current iterator position. Parameters iterator a PangoAttrIterator desc a PangoFontDescription to fill in with the current values. The family name in this structure will be set using pango_font_description_set_family_static() using values from an attribute in the PangoAttrList associated with the iterator, so if you plan to keep it around, you must call: pango_font_description_set_family (desc, pango_font_description_get_family (desc)). language if non-NULL, location to store language tag for item, or NULL if none is found. [allow-none] extra_attrs if non-NULL, location in which to store a list of non-font attributes at the the current position; only the highest priority value of each attribute will be added to this list. In order to free this value, you must call pango_attribute_destroy() on each member. [allow-none][element-type Pango.Attribute][transfer full] pango_attr_iterator_get_attrs () pango_attr_iterator_get_attrs GSList * pango_attr_iterator_get_attrs (PangoAttrIterator *iterator); Gets a list of all attributes at the current position of the iterator. Parameters iterator a PangoAttrIterator Returns a list of all attributes for the current range. To free this value, call pango_attribute_destroy() on each value and g_slist_free() on the list. [element-type Pango.Attribute][transfer full] Since: 1.2 pango_attr_iterator_destroy () pango_attr_iterator_destroy void pango_attr_iterator_destroy (PangoAttrIterator *iterator); Destroy a PangoAttrIterator and free all associated memory. Parameters iterator a PangoAttrIterator. Types and Values enum PangoAttrType PangoAttrType The PangoAttrType distinguishes between different types of attributes. Along with the predefined values, it is possible to allocate additional values for custom attributes using pango_attr_type_register(). The predefined values are given below. The type of structure used to store the attribute is listed in parentheses after the description. Members PANGO_ATTR_INVALID does not happen PANGO_ATTR_LANGUAGE language (PangoAttrLanguage) PANGO_ATTR_FAMILY font family name list (PangoAttrString) PANGO_ATTR_STYLE font slant style (PangoAttrInt) PANGO_ATTR_WEIGHT font weight (PangoAttrInt) PANGO_ATTR_VARIANT font variant (normal or small caps) (PangoAttrInt) PANGO_ATTR_STRETCH font stretch (PangoAttrInt) PANGO_ATTR_SIZE font size in points scaled by PANGO_SCALE (PangoAttrInt) PANGO_ATTR_FONT_DESC font description (PangoAttrFontDesc) PANGO_ATTR_FOREGROUND foreground color (PangoAttrColor) PANGO_ATTR_BACKGROUND background color (PangoAttrColor) PANGO_ATTR_UNDERLINE whether the text has an underline (PangoAttrInt) PANGO_ATTR_STRIKETHROUGH whether the text is struck-through (PangoAttrInt) PANGO_ATTR_RISE baseline displacement (PangoAttrInt) PANGO_ATTR_SHAPE shape (PangoAttrShape) PANGO_ATTR_SCALE font size scale factor (PangoAttrFloat) PANGO_ATTR_FALLBACK whether fallback is enabled (PangoAttrInt) PANGO_ATTR_LETTER_SPACING letter spacing (PangoAttrInt) PANGO_ATTR_UNDERLINE_COLOR underline color (PangoAttrColor) PANGO_ATTR_STRIKETHROUGH_COLOR strikethrough color (PangoAttrColor) PANGO_ATTR_ABSOLUTE_SIZE font size in pixels scaled by PANGO_SCALE (PangoAttrInt) PANGO_ATTR_GRAVITY base text gravity (PangoAttrInt) PANGO_ATTR_GRAVITY_HINT gravity hint (PangoAttrInt) PANGO_ATTR_FONT_FEATURES OpenType font features (PangoAttrString). Since 1.38 PANGO_ATTR_FOREGROUND_ALPHA foreground alpha (PangoAttrInt). Since 1.38 PANGO_ATTR_BACKGROUND_ALPHA background alpha (PangoAttrInt). Since 1.38 PANGO_ATTR_ALLOW_BREAKS whether breaks are allowed (PangoAttrInt). Since 1.44 PANGO_ATTR_SHOW how to render invisible characters (PangoAttrInt). Since 1.44 PANGO_ATTR_INSERT_HYPHENS whether to insert hyphens at intra-word line breaks (PangoAttrInt). Since 1.44 PANGO_ATTR_OVERLINE whether the text has an overline (PangoAttrInt). Since 1.46 PANGO_ATTR_OVERLINE_COLOR overline color (PangoAttrColor). Since 1.46 struct PangoAttrClass PangoAttrClass struct PangoAttrClass { PangoAttrType type; PangoAttribute * (*copy) (const PangoAttribute *attr); void (*destroy) (PangoAttribute *attr); gboolean (*equal) (const PangoAttribute *attr1, const PangoAttribute *attr2); }; The PangoAttrClass structure stores the type and operations for a particular type of attribute. The functions in this structure should not be called directly. Instead, one should use the wrapper functions provided for PangoAttribute. Members PangoAttrType type; the type ID for this attribute copy () function to duplicate an attribute of this type (see pango_attribute_copy()) destroy () function to free an attribute of this type (see pango_attribute_destroy()) equal () function to check two attributes of this type for equality (see pango_attribute_equal()) struct PangoAttribute PangoAttribute struct PangoAttribute { const PangoAttrClass *klass; guint start_index; /* in bytes */ guint end_index; /* in bytes. The character at this index is not included */ }; The PangoAttribute structure represents the common portions of all attributes. Particular types of attributes include this structure as their initial portion. The common portion of the attribute holds the range to which the value in the type-specific part of the attribute applies and should be initialized using pango_attribute_init(). By default an attribute will have an all-inclusive range of [0,G_MAXUINT]. Members const PangoAttrClass *klass; the class structure holding information about the type of the attribute guint start_index; the start index of the range (in bytes). guint end_index; end index of the range (in bytes). The character at this index is not included in the range. PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING #define PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING 0 This value can be used to set the start_index member of a PangoAttribute such that the attribute covers from the beginning of the text. Since: 1.24 PANGO_ATTR_INDEX_TO_TEXT_END PANGO_ATTR_INDEX_TO_TEXT_END #define PANGO_ATTR_INDEX_TO_TEXT_END G_MAXUINT This value can be used to set the end_index member of a PangoAttribute such that the attribute covers to the end of the text. Since: 1.24 struct PangoAttrString PangoAttrString struct PangoAttrString { PangoAttribute attr; char *value; }; The PangoAttrString structure is used to represent attributes with a string value. Members PangoAttribute attr; the common portion of the attribute char *value; the string which is the value of the attribute struct PangoAttrLanguage PangoAttrLanguage struct PangoAttrLanguage { PangoAttribute attr; PangoLanguage *value; }; The PangoAttrLanguage structure is used to represent attributes that are languages. Members PangoAttribute attr; the common portion of the attribute PangoLanguage *value; the PangoLanguage which is the value of the attribute struct PangoAttrColor PangoAttrColor struct PangoAttrColor { PangoAttribute attr; PangoColor color; }; The PangoAttrColor structure is used to represent attributes that are colors. Members PangoAttribute attr; the common portion of the attribute PangoColor color; the PangoColor which is the value of the attribute struct PangoAttrInt PangoAttrInt struct PangoAttrInt { PangoAttribute attr; int value; }; The PangoAttrInt structure is used to represent attributes with an integer or enumeration value. Members PangoAttribute attr; the common portion of the attribute int value; the value of the attribute struct PangoAttrFloat PangoAttrFloat struct PangoAttrFloat { PangoAttribute attr; double value; }; The PangoAttrFloat structure is used to represent attributes with a float or double value. Members PangoAttribute attr; the common portion of the attribute double value; the value of the attribute struct PangoAttrFontDesc PangoAttrFontDesc struct PangoAttrFontDesc { PangoAttribute attr; PangoFontDescription *desc; }; The PangoAttrFontDesc structure is used to store an attribute that sets all aspects of the font description at once. Members PangoAttribute attr; the common portion of the attribute PangoFontDescription *desc; the font description which is the value of this attribute struct PangoAttrShape PangoAttrShape struct PangoAttrShape { PangoAttribute attr; PangoRectangle ink_rect; PangoRectangle logical_rect; gpointer data; PangoAttrDataCopyFunc copy_func; GDestroyNotify destroy_func; }; The PangoAttrShape structure is used to represent attributes which impose shape restrictions. Members PangoAttribute attr; the common portion of the attribute PangoRectangle ink_rect; the ink rectangle to restrict to PangoRectangle logical_rect; the logical rectangle to restrict to gpointer data; user data set (see pango_attr_shape_new_with_data()) PangoAttrDataCopyFunc copy_func; copy function for the user data GDestroyNotify destroy_func; destroy function for the user data struct PangoAttrSize PangoAttrSize struct PangoAttrSize { PangoAttribute attr; int size; guint absolute : 1; }; The PangoAttrSize structure is used to represent attributes which set font size. Members PangoAttribute attr; the common portion of the attribute int size; size of font, in units of 1/PANGO_SCALE of a point (for PANGO_ATTR_SIZE) or of a device uni (for PANGO_ATTR_ABSOLUTE_SIZE) guint absolute : 1; whether the font size is in device units or points. This field is only present for compatibility with Pango-1.8.0 (PANGO_ATTR_ABSOLUTE_SIZE was added in 1.8.1); and always will be FALSE for PANGO_ATTR_SIZE and TRUE for PANGO_ATTR_ABSOLUTE_SIZE. struct PangoAttrFontFeatures PangoAttrFontFeatures struct PangoAttrFontFeatures { PangoAttribute attr; gchar *features; }; The PangoAttrFontFeatures structure is used to represent OpenType font features as an attribute. Members PangoAttribute attr; the common portion of the attribute gchar *features; the featues, as a string in CSS syntax Since: 1.38 enum PangoUnderline PangoUnderline The PangoUnderline enumeration is used to specify whether text should be underlined, and if so, the type of underlining. Members PANGO_UNDERLINE_NONE no underline should be drawn PANGO_UNDERLINE_SINGLE a single underline should be drawn PANGO_UNDERLINE_DOUBLE a double underline should be drawn PANGO_UNDERLINE_LOW a single underline should be drawn at a position beneath the ink extents of the text being underlined. This should be used only for underlining single characters, such as for keyboard accelerators. PANGO_UNDERLINE_SINGLE should be used for extended portions of text. PANGO_UNDERLINE_ERROR a wavy underline should be drawn below. This underline is typically used to indicate an error such as a possible mispelling; in some cases a contrasting color may automatically be used. This type of underlining is available since Pango 1.4. PANGO_UNDERLINE_SINGLE_LINE Like PANGO_UNDERLINE_SINGLE , but drawn continuously across multiple runs. This type of underlining is available since Pango 1.46. PANGO_UNDERLINE_DOUBLE_LINE Like PANGO_UNDERLINE_DOUBLE , but drawn continuously across multiple runs. This type of underlining is available since Pango 1.46. PANGO_UNDERLINE_ERROR_LINE Like PANGO_UNDERLINE_ERROR , but drawn continuously across multiple runs. This type of underlining is available since Pango 1.46. enum PangoOverline PangoOverline The PangoOverline enumeration is used to specify whether text should be overlined, and if so, the type of line. Members PANGO_OVERLINE_NONE no overline should be drawn PANGO_OVERLINE_SINGLE Draw a single line above the ink extents of the text being underlined. Since: 1.46 PANGO_SCALE_XX_SMALL PANGO_SCALE_XX_SMALL #define PANGO_SCALE_XX_SMALL ((double)0.5787037037037) The scale factor for three shrinking steps (1 / (1.2 * 1.2 * 1.2)). PANGO_SCALE_X_SMALL PANGO_SCALE_X_SMALL #define PANGO_SCALE_X_SMALL ((double)0.6944444444444) The scale factor for two shrinking steps (1 / (1.2 * 1.2)). PANGO_SCALE_SMALL PANGO_SCALE_SMALL #define PANGO_SCALE_SMALL ((double)0.8333333333333) The scale factor for one shrinking step (1 / 1.2). PANGO_SCALE_MEDIUM PANGO_SCALE_MEDIUM #define PANGO_SCALE_MEDIUM ((double)1.0) The scale factor for normal size (1.0). PANGO_SCALE_LARGE PANGO_SCALE_LARGE #define PANGO_SCALE_LARGE ((double)1.2) The scale factor for one magnification step (1.2). PANGO_SCALE_X_LARGE PANGO_SCALE_X_LARGE #define PANGO_SCALE_X_LARGE ((double)1.44) The scale factor for two magnification steps (1.2 * 1.2). PANGO_SCALE_XX_LARGE PANGO_SCALE_XX_LARGE #define PANGO_SCALE_XX_LARGE ((double)1.728) The scale factor for three magnification steps (1.2 * 1.2 * 1.2). enum PangoShowFlags PangoShowFlags These flags affect how Pango treats characters that are normally not visible in the output. Members PANGO_SHOW_NONE No special treatment for invisible characters PANGO_SHOW_SPACES Render spaces, tabs and newlines visibly PANGO_SHOW_LINE_BREAKS Render line breaks visibly PANGO_SHOW_IGNORABLES Render default-ignorable Unicode characters visibly struct PangoColor PangoColor struct PangoColor { guint16 red; guint16 green; guint16 blue; }; The PangoColor structure is used to represent a color in an uncalibrated RGB color-space. Members guint16 red; value of red component guint16 green; value of green component guint16 blue; value of blue component PangoAttrList PangoAttrList typedef struct { guint ref_count; GPtrArray *attributes; } PangoAttrList; The PangoAttrList structure represents a list of attributes that apply to a section of text. The attributes are, in general, allowed to overlap in an arbitrary fashion, however, if the attributes are manipulated only through pango_attr_list_change(), the overlap between properties will meet stricter criteria. Since the PangoAttrList structure is stored as a linear list, it is not suitable for storing attributes for large amounts of text. In general, you should not use a single PangoAttrList for more than one paragraph of text. PangoAttrIterator PangoAttrIterator typedef struct { GPtrArray *attrs; /* From the list */ guint n_attrs; /* Copied from the list */ GPtrArray *attribute_stack; guint attr_index; guint start_index; guint end_index; } PangoAttrIterator; The PangoAttrIterator structure is used to represent an iterator through a PangoAttrList. A new iterator is created with pango_attr_list_get_iterator(). Once the iterator is created, it can be advanced through the style changes in the text using pango_attr_iterator_next(). At each style change, the range of the current style segment and the attributes currently in effect can be queried. docs/xml/markup.xml0000664000175000017500000005663314002404352014466 0ustar mclasenmclasen ]> Markup 3 PANGO Library Markup Simple markup language for text with attributes Functions gboolean pango_parse_markup () GMarkupParseContext * pango_markup_parser_new () gboolean pango_markup_parser_finish () Description Frequently, you want to display some text to the user with attributes applied to part of the text (for example, you might want bold or italicized words). With the base Pango interfaces, you could create a PangoAttrList and apply it to the text; the problem is that you'd need to apply attributes to some numeric range of characters, for example "characters 12-17." This is broken from an internationalization standpoint; once the text is translated, the word you wanted to italicize could be in a different position. The solution is to include the text attributes in the string to be translated. Pango provides this feature with a small markup language. You can parse a marked-up string into the string text plus a PangoAttrList using either of pango_parse_markup() or pango_markup_parser_new(). A simple example of a marked-up string might be: Blue text is cool! ]]> Pango uses GMarkup to parse this language, which means that XML features such as numeric character entities such as &amp;#169; for © can be used too. The root tag of a marked-up document is <markup>, but pango_parse_markup() allows you to omit this tag, so you will most likely never need to use it. The most general markup tag is <span>, then there are some convenience tags. Span attributes<span> has the following attributes: font_desc: A font description string, such as "Sans Italic 12". See pango_font_description_from_string() for a description of the format of the string representation . Note that any other span attributes will override this description. So if you have "Sans Italic" and also a style="normal" attribute, you will get Sans normal, not italic. font_family: A font family name font_size, size: Font size in 1024ths of a point, or one of the absolute sizes xx-small, x-small, small, medium, large, x-large, xx-large, or one of the relative sizes smaller or larger. If you want to specify a absolute size, it's usually easier to take advantage of the ability to specify a partial font description using font; you can use font='12.5' rather than size='12800'. font_style: One of normal, oblique, italic font_weight: One of ultralight, light, normal, bold, ultrabold, heavy, or a numeric weight font_variant: One of normal or smallcaps font_stretch, stretch: One of ultracondensed, extracondensed, condensed, semicondensed, normal, semiexpanded, expanded, extraexpanded, ultraexpanded font_features: A comma-separated list of OpenType font feature settings, in the same syntax as accepted by CSS. E.g: font_features='dlig=1, -kern, afrc on' foreground, fgcolor: An RGB color specification such as #00FF00 or a color name such as red. Since 1.38, an RGBA color specification such as #00FF007F will be interpreted as specifying both a foreground color and foreground alpha. background, bgcolor: An RGB color specification such as #00FF00 or a color name such as red. Since 1.38, an RGBA color specification such as #00FF007F will be interpreted as specifying both a background color and background alpha. alpha, fgalpha: An alpha value for the foreground color, either a plain integer between 1 and 65536 or a percentage value like 50%. background_alpha, bgalpha: An alpha value for the background color, either a plain integer between 1 and 65536 or a percentage value like 50%. underline: One of none, single, double, low, error, single-line, double-line or error-line. underline_color: The color of underlines; an RGB color specification such as #00FF00 or a color name such as red overline: One of none or single overline_color: The color of overlines; an RGB color specification such as #00FF00 or a color name such as red rise: Vertical displacement, in Pango units. Can be negative for subscript, positive for superscript. strikethrough true or false whether to strike through the text strikethrough_color: The color of strikethrough lines; an RGB color specification such as #00FF00 or a color name such as red fallback: true or false whether to enable fallback. If disabled, then characters will only be used from the closest matching font on the system. No fallback will be done to other fonts on the system that might contain the characters in the text. Fallback is enabled by default. Most applications should not disable fallback. allow_breaks: true or false whether to allow line breaks or not. If not allowed, the range will be kept in a single run as far as possible. Breaks are allowed by default. insert_hyphens: true or false` whether to insert hyphens when breaking lines in the middle of a word. Hyphens are inserted by default. show: A value determining how invisible characters are treated. Possible values are spaces, line-breaks, ignorables or combinations, such as spaces|line-breaks. lang: A language code, indicating the text language letter_spacing: Inter-letter spacing in 1024ths of a point. gravity: One of south, east, north, west, auto. gravity_hint: One of natural, strong, line. Convenience tagsThe following convenience tags are provided: <b>: Bold <big>: Makes font relatively larger, equivalent to <span size="larger"> <i>: Italic <s>: Strikethrough <sub>: Subscript <sup>: Superscript <small>: Makes font relatively smaller, equivalent to <span size="smaller"> <tt>: Monospace <u>: Underline Functions pango_parse_markup () pango_parse_markup gboolean pango_parse_markup (const char *markup_text, int length, gunichar accel_marker, PangoAttrList **attr_list, char **text, gunichar *accel_char, GError **error); Parses marked-up text (see markup format) to create a plain-text string and an attribute list. If accel_marker is nonzero, the given character will mark the character following it as an accelerator. For example, accel_marker might be an ampersand or underscore. All characters marked as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, and the first character so marked will be returned in accel_char . Two accel_marker characters following each other produce a single literal accel_marker character. To parse a stream of pango markup incrementally, use pango_markup_parser_new(). If any error happens, none of the output arguments are touched except for error . Parameters markup_text markup to parse (see markup format) length length of markup_text , or -1 if nul-terminated accel_marker character that precedes an accelerator, or 0 for none attr_list address of return location for a PangoAttrList, or NULL. [out][allow-none] text address of return location for text with tags stripped, or NULL. [out][allow-none] accel_char address of return location for accelerator char, or NULL. [out][allow-none] error address of return location for errors, or NULL Returns FALSE if error is set, otherwise TRUE pango_markup_parser_new () pango_markup_parser_new GMarkupParseContext * pango_markup_parser_new (gunichar accel_marker); Parses marked-up text (see markup format) to create a plain-text string and an attribute list. If accel_marker is nonzero, the given character will mark the character following it as an accelerator. For example, accel_marker might be an ampersand or underscore. All characters marked as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, and the first character so marked will be returned in accel_char , when calling finish(). Two accel_marker characters following each other produce a single literal accel_marker character. To feed markup to the parser, use g_markup_parse_context_parse() on the returned GMarkupParseContext. When done with feeding markup to the parser, use pango_markup_parser_finish() to get the data out of it, and then use g_markup_parse_context_free() to free it. This function is designed for applications that read pango markup from streams. To simply parse a string containing pango markup, the simpler pango_parse_markup() API is recommended instead. Parameters accel_marker character that precedes an accelerator, or 0 for none Returns a GMarkupParseContext that should be destroyed with g_markup_parse_context_free(). [transfer none] Since: 1.31.0 pango_markup_parser_finish () pango_markup_parser_finish gboolean pango_markup_parser_finish (GMarkupParseContext *context, PangoAttrList **attr_list, char **text, gunichar *accel_char, GError **error); After feeding a pango markup parser some data with g_markup_parse_context_parse(), use this function to get the list of pango attributes and text out of the markup. This function will not free context , use g_markup_parse_context_free() to do so. Parameters context A valid parse context that was returned from pango_markup_parser_new() attr_list address of return location for a PangoAttrList, or NULL. [out][allow-none] text address of return location for text with tags stripped, or NULL. [out][allow-none] accel_char address of return location for accelerator char, or NULL. [out][allow-none] error address of return location for errors, or NULL Returns FALSE if error is set, otherwise TRUE Since: 1.31.0 docs/xml/tab-stops.xml0000664000175000017500000006203014002404352015067 0ustar mclasenmclasen ]> Tab Stops 3 PANGO Library Tab Stops Structures for storing tab stops Functions PangoTabArray * pango_tab_array_new () PangoTabArray * pango_tab_array_new_with_positions () PangoTabArray * pango_tab_array_copy () void pango_tab_array_free () gint pango_tab_array_get_size () void pango_tab_array_resize () void pango_tab_array_set_tab () void pango_tab_array_get_tab () void pango_tab_array_get_tabs () gboolean pango_tab_array_get_positions_in_pixels () Types and Values PangoTabArray enumPangoTabAlign Object Hierarchy GBoxed ╰── PangoTabArray GEnum ╰── PangoTabAlign Description Functions in this section are used to deal with PangoTabArray objects that can be used to set tab stop positions in a PangoLayout. Functions pango_tab_array_new () pango_tab_array_new PangoTabArray * pango_tab_array_new (gint initial_size, gboolean positions_in_pixels); Creates an array of initial_size tab stops. Tab stops are specified in pixel units if positions_in_pixels is TRUE, otherwise in Pango units. All stops are initially at position 0. Parameters initial_size Initial number of tab stops to allocate, can be 0 positions_in_pixels whether positions are in pixel units Returns the newly allocated PangoTabArray, which should be freed with pango_tab_array_free(). pango_tab_array_new_with_positions () pango_tab_array_new_with_positions PangoTabArray * pango_tab_array_new_with_positions (gint size, gboolean positions_in_pixels, PangoTabAlign first_alignment, gint first_position, ...); This is a convenience function that creates a PangoTabArray and allows you to specify the alignment and position of each tab stop. You must provide an alignment and position for size tab stops. Parameters size number of tab stops in the array positions_in_pixels whether positions are in pixel units first_alignment alignment of first tab stop first_position position of first tab stop ... additional alignment/position pairs Returns the newly allocated PangoTabArray, which should be freed with pango_tab_array_free(). pango_tab_array_copy () pango_tab_array_copy PangoTabArray * pango_tab_array_copy (PangoTabArray *src); Copies a PangoTabArray Parameters src PangoTabArray to copy Returns the newly allocated PangoTabArray, which should be freed with pango_tab_array_free(). pango_tab_array_free () pango_tab_array_free void pango_tab_array_free (PangoTabArray *tab_array); Frees a tab array and associated resources. Parameters tab_array a PangoTabArray pango_tab_array_get_size () pango_tab_array_get_size gint pango_tab_array_get_size (PangoTabArray *tab_array); Gets the number of tab stops in tab_array . Parameters tab_array a PangoTabArray Returns the number of tab stops in the array. pango_tab_array_resize () pango_tab_array_resize void pango_tab_array_resize (PangoTabArray *tab_array, gint new_size); Resizes a tab array. You must subsequently initialize any tabs that were added as a result of growing the array. Parameters tab_array a PangoTabArray new_size new size of the array pango_tab_array_set_tab () pango_tab_array_set_tab void pango_tab_array_set_tab (PangoTabArray *tab_array, gint tab_index, PangoTabAlign alignment, gint location); Sets the alignment and location of a tab stop. alignment must always be PANGO_TAB_LEFT in the current implementation. Parameters tab_array a PangoTabArray tab_index the index of a tab stop alignment tab alignment location tab location in Pango units pango_tab_array_get_tab () pango_tab_array_get_tab void pango_tab_array_get_tab (PangoTabArray *tab_array, gint tab_index, PangoTabAlign *alignment, gint *location); Gets the alignment and position of a tab stop. Parameters tab_array a PangoTabArray tab_index tab stop index alignment location to store alignment, or NULL. [out][allow-none] location location to store tab position, or NULL. [out][allow-none] pango_tab_array_get_tabs () pango_tab_array_get_tabs void pango_tab_array_get_tabs (PangoTabArray *tab_array, PangoTabAlign **alignments, gint **locations); If non-NULL, alignments and locations are filled with allocated arrays of length pango_tab_array_get_size(). You must free the returned array. Parameters tab_array a PangoTabArray alignments location to store an array of tab stop alignments, or NULL. [out][allow-none] locations location to store an array of tab positions, or NULL. [out][allow-none][array] pango_tab_array_get_positions_in_pixels () pango_tab_array_get_positions_in_pixels gboolean pango_tab_array_get_positions_in_pixels (PangoTabArray *tab_array); Returns TRUE if the tab positions are in pixels, FALSE if they are in Pango units. Parameters tab_array a PangoTabArray Returns whether positions are in pixels. Types and Values PangoTabArray PangoTabArray typedef struct _PangoTabArray PangoTabArray; A PangoTabArray struct contains an array of tab stops. Each tab stop has an alignment and a position. enum PangoTabAlign PangoTabAlign A PangoTabAlign specifies where a tab stop appears relative to the text. Members PANGO_TAB_LEFT the tab stop appears to the left of the text. docs/xml/layout.xml0000664000175000017500000065245714002404352014512 0ustar mclasenmclasen ]> Layout Objects 3 PANGO Library Layout Objects High-level layout driver objects Functions PangoLayout * pango_layout_new () PangoLayout * pango_layout_copy () PangoContext * pango_layout_get_context () void pango_layout_context_changed () guint pango_layout_get_serial () void pango_layout_set_text () const char * pango_layout_get_text () gint pango_layout_get_character_count () void pango_layout_set_markup () void pango_layout_set_markup_with_accel () void pango_layout_set_attributes () PangoAttrList * pango_layout_get_attributes () void pango_layout_set_font_description () const PangoFontDescription * pango_layout_get_font_description () void pango_layout_set_width () int pango_layout_get_width () void pango_layout_set_height () int pango_layout_get_height () void pango_layout_set_wrap () PangoWrapMode pango_layout_get_wrap () gboolean pango_layout_is_wrapped () void pango_layout_set_ellipsize () PangoEllipsizeMode pango_layout_get_ellipsize () gboolean pango_layout_is_ellipsized () void pango_layout_set_indent () int pango_layout_get_indent () int pango_layout_get_spacing () void pango_layout_set_spacing () void pango_layout_set_line_spacing () float pango_layout_get_line_spacing () void pango_layout_set_justify () gboolean pango_layout_get_justify () void pango_layout_set_auto_dir () gboolean pango_layout_get_auto_dir () PangoDirection pango_layout_get_direction () void pango_layout_set_alignment () PangoAlignment pango_layout_get_alignment () void pango_layout_set_tabs () PangoTabArray * pango_layout_get_tabs () void pango_layout_set_single_paragraph_mode () gboolean pango_layout_get_single_paragraph_mode () int pango_layout_get_unknown_glyphs_count () void pango_layout_get_log_attrs () const PangoLogAttr * pango_layout_get_log_attrs_readonly () void pango_layout_index_to_pos () void pango_layout_index_to_line_x () gboolean pango_layout_xy_to_index () void pango_layout_get_cursor_pos () void pango_layout_move_cursor_visually () void pango_layout_get_extents () void pango_layout_get_pixel_extents () void pango_layout_get_size () void pango_layout_get_pixel_size () int pango_layout_get_baseline () int pango_layout_get_line_count () PangoLayoutLine * pango_layout_get_line () PangoLayoutLine * pango_layout_get_line_readonly () GSList * pango_layout_get_lines () GSList * pango_layout_get_lines_readonly () PangoLayoutIter * pango_layout_get_iter () PangoLayoutIter * pango_layout_iter_copy () void pango_layout_iter_free () gboolean pango_layout_iter_next_run () gboolean pango_layout_iter_next_char () gboolean pango_layout_iter_next_cluster () gboolean pango_layout_iter_next_line () gboolean pango_layout_iter_at_last_line () int pango_layout_iter_get_index () int pango_layout_iter_get_baseline () PangoLayoutRun * pango_layout_iter_get_run () PangoLayoutRun * pango_layout_iter_get_run_readonly () PangoLayoutLine * pango_layout_iter_get_line () PangoLayoutLine * pango_layout_iter_get_line_readonly () PangoLayout * pango_layout_iter_get_layout () void pango_layout_iter_get_char_extents () void pango_layout_iter_get_cluster_extents () void pango_layout_iter_get_run_extents () void pango_layout_iter_get_line_yrange () void pango_layout_iter_get_line_extents () void pango_layout_iter_get_layout_extents () PangoLayoutLine * pango_layout_line_ref () void pango_layout_line_unref () void pango_layout_line_get_extents () void pango_layout_line_get_pixel_extents () void pango_layout_line_index_to_x () gboolean pango_layout_line_x_to_index () void pango_layout_line_get_x_ranges () void pango_layout_line_get_height () Types and Values PangoLayout PangoLayoutIter enumPangoWrapMode enumPangoEllipsizeMode enumPangoAlignment structPangoLayoutLine typedefPangoLayoutRun Object Hierarchy GBoxed ├── PangoLayoutIter ╰── PangoLayoutLine GEnum ├── PangoAlignment ├── PangoEllipsizeMode ╰── PangoWrapMode GObject ╰── PangoLayout Description While complete access to the layout capabilities of Pango is provided using the detailed interfaces for itemization and shaping, using that functionality directly involves writing a fairly large amount of code. The objects and functions in this section provide a high-level driver for formatting entire paragraphs of text at once. This includes paragraph-level functionality such as line-breaking, justification, alignment and ellipsization. Functions pango_layout_new () pango_layout_new PangoLayout * pango_layout_new (PangoContext *context); Create a new PangoLayout object with attributes initialized to default values for a particular PangoContext. Parameters context a PangoContext Returns the newly allocated PangoLayout, with a reference count of one, which should be freed with g_object_unref(). pango_layout_copy () pango_layout_copy PangoLayout * pango_layout_copy (PangoLayout *src); Does a deep copy-by-value of the src layout. The attribute list, tab array, and text from the original layout are all copied by value. Parameters src a PangoLayout Returns the newly allocated PangoLayout, with a reference count of one, which should be freed with g_object_unref(). [transfer full] pango_layout_get_context () pango_layout_get_context PangoContext * pango_layout_get_context (PangoLayout *layout); Retrieves the PangoContext used for this layout. Parameters layout a PangoLayout Returns the PangoContext for the layout. This does not have an additional refcount added, so if you want to keep a copy of this around, you must reference it yourself. [transfer none] pango_layout_context_changed () pango_layout_context_changed void pango_layout_context_changed (PangoLayout *layout); Forces recomputation of any state in the PangoLayout that might depend on the layout's context. This function should be called if you make changes to the context subsequent to creating the layout. Parameters layout a PangoLayout pango_layout_get_serial () pango_layout_get_serial guint pango_layout_get_serial (PangoLayout *layout); Returns the current serial number of layout . The serial number is initialized to an small number larger than zero when a new layout is created and is increased whenever the layout is changed using any of the setter functions, or the PangoContext it uses has changed. The serial may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals". This can be used to automatically detect changes to a PangoLayout, and is useful for example to decide whether a layout needs redrawing. To force the serial to be increased, use pango_layout_context_changed(). Parameters layout a PangoLayout Returns The current serial number of layout . Since: 1.32.4 pango_layout_set_text () pango_layout_set_text void pango_layout_set_text (PangoLayout *layout, const char *text, int length); Sets the text of the layout. This function validates text and renders invalid UTF-8 with a placeholder glyph. Note that if you have used pango_layout_set_markup() or pango_layout_set_markup_with_accel() on layout before, you may want to call pango_layout_set_attributes() to clear the attributes set on the layout from the markup as this function does not clear attributes. Parameters layout a PangoLayout text the text length maximum length of text , in bytes. -1 indicates that the string is nul-terminated and the length should be calculated. The text will also be truncated on encountering a nul-termination even when length is positive. pango_layout_get_text () pango_layout_get_text const char * pango_layout_get_text (PangoLayout *layout); Gets the text in the layout. The returned text should not be freed or modified. Parameters layout a PangoLayout Returns the text in the layout . pango_layout_get_character_count () pango_layout_get_character_count gint pango_layout_get_character_count (PangoLayout *layout); Returns the number of Unicode characters in the the text of layout . Parameters layout a PangoLayout Returns the number of Unicode characters in the text of layout Since: 1.30 pango_layout_set_markup () pango_layout_set_markup void pango_layout_set_markup (PangoLayout *layout, const char *markup, int length); Same as pango_layout_set_markup_with_accel(), but the markup text isn't scanned for accelerators. Parameters layout a PangoLayout markup marked-up text length length of marked-up text in bytes, or -1 if markup is null-terminated pango_layout_set_markup_with_accel () pango_layout_set_markup_with_accel void pango_layout_set_markup_with_accel (PangoLayout *layout, const char *markup, int length, gunichar accel_marker, gunichar *accel_char); Sets the layout text and attribute list from marked-up text (see markup format). Replaces the current text and attribute list. If accel_marker is nonzero, the given character will mark the character following it as an accelerator. For example, accel_marker might be an ampersand or underscore. All characters marked as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, and the first character so marked will be returned in accel_char . Two accel_marker characters following each other produce a single literal accel_marker character. Parameters layout a PangoLayout markup marked-up text (see markup format) length length of marked-up text in bytes, or -1 if markup is null-terminated accel_marker marker for accelerators in the text accel_char return location for first located accelerator, or NULL. [out caller-allocates][allow-none] pango_layout_set_attributes () pango_layout_set_attributes void pango_layout_set_attributes (PangoLayout *layout, PangoAttrList *attrs); Sets the text attributes for a layout object. References attrs , so the caller can unref its reference. Parameters layout a PangoLayout attrs a PangoAttrList, can be NULL. [allow-none][transfer none] pango_layout_get_attributes () pango_layout_get_attributes PangoAttrList * pango_layout_get_attributes (PangoLayout *layout); Gets the attribute list for the layout, if any. Parameters layout a PangoLayout Returns a PangoAttrList or NULL if none was set. [transfer none][nullable] pango_layout_set_font_description () pango_layout_set_font_description void pango_layout_set_font_description (PangoLayout *layout, const PangoFontDescription *desc); Sets the default font description for the layout. If no font description is set on the layout, the font description from the layout's context is used. Parameters layout a PangoLayout desc the new PangoFontDescription, or NULL to unset the current font description. [allow-none] pango_layout_get_font_description () pango_layout_get_font_description const PangoFontDescription * pango_layout_get_font_description (PangoLayout *layout); Gets the font description for the layout, if any. Parameters layout a PangoLayout Returns a pointer to the layout's font description, or NULL if the font description from the layout's context is inherited. This value is owned by the layout and must not be modified or freed. [nullable] Since: 1.8 pango_layout_set_width () pango_layout_set_width void pango_layout_set_width (PangoLayout *layout, int width); Sets the width to which the lines of the PangoLayout should wrap or ellipsized. The default value is -1: no width set. Parameters layout a PangoLayout. width the desired width in Pango units, or -1 to indicate that no wrapping or ellipsization should be performed. pango_layout_get_width () pango_layout_get_width int pango_layout_get_width (PangoLayout *layout); Gets the width to which the lines of the PangoLayout should wrap. Parameters layout a PangoLayout Returns the width in Pango units, or -1 if no width set. pango_layout_set_height () pango_layout_set_height void pango_layout_set_height (PangoLayout *layout, int height); Sets the height to which the PangoLayout should be ellipsized at. There are two different behaviors, based on whether height is positive or negative. If height is positive, it will be the maximum height of the layout. Only lines would be shown that would fit, and if there is any text omitted, an ellipsis added. At least one line is included in each paragraph regardless of how small the height value is. A value of zero will render exactly one line for the entire layout. If height is negative, it will be the (negative of) maximum number of lines per paragraph. That is, the total number of lines shown may well be more than this value if the layout contains multiple paragraphs of text. The default value of -1 means that first line of each paragraph is ellipsized. This behavior may be changed in the future to act per layout instead of per paragraph. File a bug against pango at http://bugzilla.gnome.org/ if your code relies on this behavior. Height setting only has effect if a positive width is set on layout and ellipsization mode of layout is not PANGO_ELLIPSIZE_NONE. The behavior is undefined if a height other than -1 is set and ellipsization mode is set to PANGO_ELLIPSIZE_NONE, and may change in the future. Parameters layout a PangoLayout. height the desired height of the layout in Pango units if positive, or desired number of lines if negative. Since: 1.20 pango_layout_get_height () pango_layout_get_height int pango_layout_get_height (PangoLayout *layout); Gets the height of layout used for ellipsization. See pango_layout_set_height() for details. Parameters layout a PangoLayout Returns the height, in Pango units if positive, or number of lines if negative. Since: 1.20 pango_layout_set_wrap () pango_layout_set_wrap void pango_layout_set_wrap (PangoLayout *layout, PangoWrapMode wrap); Sets the wrap mode; the wrap mode only has effect if a width is set on the layout with pango_layout_set_width(). To turn off wrapping, set the width to -1. Parameters layout a PangoLayout wrap the wrap mode pango_layout_get_wrap () pango_layout_get_wrap PangoWrapMode pango_layout_get_wrap (PangoLayout *layout); Gets the wrap mode for the layout. Use pango_layout_is_wrapped() to query whether any paragraphs were actually wrapped. Parameters layout a PangoLayout Returns active wrap mode. pango_layout_is_wrapped () pango_layout_is_wrapped gboolean pango_layout_is_wrapped (PangoLayout *layout); Queries whether the layout had to wrap any paragraphs. This returns TRUE if a positive width is set on layout , ellipsization mode of layout is set to PANGO_ELLIPSIZE_NONE, and there are paragraphs exceeding the layout width that have to be wrapped. Parameters layout a PangoLayout Returns TRUE if any paragraphs had to be wrapped, FALSE otherwise. Since: 1.16 pango_layout_set_ellipsize () pango_layout_set_ellipsize void pango_layout_set_ellipsize (PangoLayout *layout, PangoEllipsizeMode ellipsize); Sets the type of ellipsization being performed for layout . Depending on the ellipsization mode ellipsize text is removed from the start, middle, or end of text so they fit within the width and height of layout set with pango_layout_set_width() and pango_layout_set_height(). If the layout contains characters such as newlines that force it to be layed out in multiple paragraphs, then whether each paragraph is ellipsized separately or the entire layout is ellipsized as a whole depends on the set height of the layout. See pango_layout_set_height() for details. Parameters layout a PangoLayout ellipsize the new ellipsization mode for layout Since: 1.6 pango_layout_get_ellipsize () pango_layout_get_ellipsize PangoEllipsizeMode pango_layout_get_ellipsize (PangoLayout *layout); Gets the type of ellipsization being performed for layout . See pango_layout_set_ellipsize() Parameters layout a PangoLayout Returns the current ellipsization mode for layout . Use pango_layout_is_ellipsized() to query whether any paragraphs were actually ellipsized. Since: 1.6 pango_layout_is_ellipsized () pango_layout_is_ellipsized gboolean pango_layout_is_ellipsized (PangoLayout *layout); Queries whether the layout had to ellipsize any paragraphs. This returns TRUE if the ellipsization mode for layout is not PANGO_ELLIPSIZE_NONE, a positive width is set on layout , and there are paragraphs exceeding that width that have to be ellipsized. Parameters layout a PangoLayout Returns TRUE if any paragraphs had to be ellipsized, FALSE otherwise. Since: 1.16 pango_layout_set_indent () pango_layout_set_indent void pango_layout_set_indent (PangoLayout *layout, int indent); Sets the width in Pango units to indent each paragraph. A negative value of indent will produce a hanging indentation. That is, the first line will have the full width, and subsequent lines will be indented by the absolute value of indent . The indent setting is ignored if layout alignment is set to PANGO_ALIGN_CENTER. Parameters layout a PangoLayout. indent the amount by which to indent. pango_layout_get_indent () pango_layout_get_indent int pango_layout_get_indent (PangoLayout *layout); Gets the paragraph indent width in Pango units. A negative value indicates a hanging indentation. Parameters layout a PangoLayout Returns the indent in Pango units. pango_layout_get_spacing () pango_layout_get_spacing int pango_layout_get_spacing (PangoLayout *layout); Gets the amount of spacing between the lines of the layout. Parameters layout a PangoLayout Returns the spacing in Pango units. pango_layout_set_spacing () pango_layout_set_spacing void pango_layout_set_spacing (PangoLayout *layout, int spacing); Sets the amount of spacing in Pango unit between the lines of the layout. When placing lines with spacing, Pango arranges things so that line2.top = line1.bottom + spacing Note: Since 1.44, Pango defaults to using the line height (as determined by the font) for placing lines. The spacing set with this function is only taken into account when the line-height factor is set to zero with pango_layout_set_line_spacing(). Parameters layout a PangoLayout. spacing the amount of spacing pango_layout_set_line_spacing () pango_layout_set_line_spacing void pango_layout_set_line_spacing (PangoLayout *layout, float factor); Sets a factor for line spacing. Typical values are: 0, 1, 1.5, 2. The default values is 0. If factor is non-zero, lines are placed so that baseline2 = baseline1 + factor * height2 where height2 is the line height of the second line (as determined by the font(s)). In this case, the spacing set with pango_layout_set_spacing() is ignored. If factor is zero, spacing is applied as before. Parameters layout a PangoLayout factor the new line spacing factor Since: 1.44 pango_layout_get_line_spacing () pango_layout_get_line_spacing float pango_layout_get_line_spacing (PangoLayout *layout); Gets the value that has been set with pango_layout_set_line_spacing(). Parameters layout a PangoLayout Since: 1.44 pango_layout_set_justify () pango_layout_set_justify void pango_layout_set_justify (PangoLayout *layout, gboolean justify); Sets whether each complete line should be stretched to fill the entire width of the layout. This stretching is typically done by adding whitespace, but for some scripts (such as Arabic), the justification may be done in more complex ways, like extending the characters. Note that this setting is not implemented and so is ignored in Pango older than 1.18. Parameters layout a PangoLayout justify whether the lines in the layout should be justified. pango_layout_get_justify () pango_layout_get_justify gboolean pango_layout_get_justify (PangoLayout *layout); Gets whether each complete line should be stretched to fill the entire width of the layout. Parameters layout a PangoLayout Returns the justify. pango_layout_set_auto_dir () pango_layout_set_auto_dir void pango_layout_set_auto_dir (PangoLayout *layout, gboolean auto_dir); Sets whether to calculate the bidirectional base direction for the layout according to the contents of the layout; when this flag is on (the default), then paragraphs in layout that begin with strong right-to-left characters (Arabic and Hebrew principally), will have right-to-left layout, paragraphs with letters from other scripts will have left-to-right layout. Paragraphs with only neutral characters get their direction from the surrounding paragraphs. When FALSE, the choice between left-to-right and right-to-left layout is done according to the base direction of the layout's PangoContext. (See pango_context_set_base_dir()). When the auto-computed direction of a paragraph differs from the base direction of the context, the interpretation of PANGO_ALIGN_LEFT and PANGO_ALIGN_RIGHT are swapped. Parameters layout a PangoLayout auto_dir if TRUE, compute the bidirectional base direction from the layout's contents. Since: 1.4 pango_layout_get_auto_dir () pango_layout_get_auto_dir gboolean pango_layout_get_auto_dir (PangoLayout *layout); Gets whether to calculate the bidirectional base direction for the layout according to the contents of the layout. See pango_layout_set_auto_dir(). Parameters layout a PangoLayout Returns TRUE if the bidirectional base direction is computed from the layout's contents, FALSE otherwise. Since: 1.4 pango_layout_get_direction () pango_layout_get_direction PangoDirection pango_layout_get_direction (PangoLayout *layout, int index); Gets the text direction at the given character position in layout . Parameters layout a PangoLayout index the byte index of the char Returns the text direction at index Since: 1.46 pango_layout_set_alignment () pango_layout_set_alignment void pango_layout_set_alignment (PangoLayout *layout, PangoAlignment alignment); Sets the alignment for the layout: how partial lines are positioned within the horizontal space available. Parameters layout a PangoLayout alignment the alignment pango_layout_get_alignment () pango_layout_get_alignment PangoAlignment pango_layout_get_alignment (PangoLayout *layout); Gets the alignment for the layout: how partial lines are positioned within the horizontal space available. Parameters layout a PangoLayout Returns the alignment. pango_layout_set_tabs () pango_layout_set_tabs void pango_layout_set_tabs (PangoLayout *layout, PangoTabArray *tabs); Sets the tabs to use for layout , overriding the default tabs (by default, tabs are every 8 spaces). If tabs is NULL, the default tabs are reinstated. tabs is copied into the layout; you must free your copy of tabs yourself. Parameters layout a PangoLayout tabs a PangoTabArray, or NULL. [allow-none] pango_layout_get_tabs () pango_layout_get_tabs PangoTabArray * pango_layout_get_tabs (PangoLayout *layout); Gets the current PangoTabArray used by this layout. If no PangoTabArray has been set, then the default tabs are in use and NULL is returned. Default tabs are every 8 spaces. The return value should be freed with pango_tab_array_free(). Parameters layout a PangoLayout Returns a copy of the tabs for this layout, or NULL. [nullable] pango_layout_set_single_paragraph_mode () pango_layout_set_single_paragraph_mode void pango_layout_set_single_paragraph_mode (PangoLayout *layout, gboolean setting); If setting is TRUE, do not treat newlines and similar characters as paragraph separators; instead, keep all text in a single paragraph, and display a glyph for paragraph separator characters. Used when you want to allow editing of newlines on a single text line. Parameters layout a PangoLayout setting new setting pango_layout_get_single_paragraph_mode () pango_layout_get_single_paragraph_mode gboolean pango_layout_get_single_paragraph_mode (PangoLayout *layout); Obtains the value set by pango_layout_set_single_paragraph_mode(). Parameters layout a PangoLayout Returns TRUE if the layout does not break paragraphs at paragraph separator characters, FALSE otherwise. pango_layout_get_unknown_glyphs_count () pango_layout_get_unknown_glyphs_count int pango_layout_get_unknown_glyphs_count (PangoLayout *layout); Counts the number unknown glyphs in layout . That is, zero if glyphs for all characters in the layout text were found, or more than zero otherwise. This function can be used to determine if there are any fonts available to render all characters in a certain string, or when used in combination with PANGO_ATTR_FALLBACK, to check if a certain font supports all the characters in the string. Parameters layout a PangoLayout Returns The number of unknown glyphs in layout . Since: 1.16 pango_layout_get_log_attrs () pango_layout_get_log_attrs void pango_layout_get_log_attrs (PangoLayout *layout, PangoLogAttr **attrs, gint *n_attrs); Retrieves an array of logical attributes for each character in the layout . Parameters layout a PangoLayout attrs location to store a pointer to an array of logical attributes This value must be freed with g_free(). [out][array length=n_attrs][transfer container] n_attrs location to store the number of the attributes in the array. (The stored value will be one more than the total number of characters in the layout, since there need to be attributes corresponding to both the position before the first character and the position after the last character.). [out] pango_layout_get_log_attrs_readonly () pango_layout_get_log_attrs_readonly const PangoLogAttr * pango_layout_get_log_attrs_readonly (PangoLayout *layout, gint *n_attrs); Retrieves an array of logical attributes for each character in the layout . This is a faster alternative to pango_layout_get_log_attrs(). The returned array is part of layout and must not be modified. Modifying the layout will invalidate the returned array. The number of attributes returned in n_attrs will be one more than the total number of characters in the layout, since there need to be attributes corresponding to both the position before the first character and the position after the last character. Parameters layout a PangoLayout n_attrs location to store the number of the attributes in the array. [out] Returns an array of logical attributes. [array length=n_attrs] Since: 1.30 pango_layout_index_to_pos () pango_layout_index_to_pos void pango_layout_index_to_pos (PangoLayout *layout, int index_, PangoRectangle *pos); Converts from an index within a PangoLayout to the onscreen position corresponding to the grapheme at that index, which is represented as rectangle. Note that pos->x is always the leading edge of the grapheme and pos->x + pos->width the trailing edge of the grapheme. If the directionality of the grapheme is right-to-left, then pos->width will be negative. Parameters layout a PangoLayout index_ byte index within layout pos rectangle in which to store the position of the grapheme. [out] pango_layout_index_to_line_x () pango_layout_index_to_line_x void pango_layout_index_to_line_x (PangoLayout *layout, int index_, gboolean trailing, int *line, int *x_pos); Converts from byte index_ within the layout to line and X position. (X position is measured from the left edge of the line) Parameters layout a PangoLayout index_ the byte index of a grapheme within the layout. trailing an integer indicating the edge of the grapheme to retrieve the position of. If > 0, the trailing edge of the grapheme, if 0, the leading of the grapheme. line location to store resulting line index. (which will between 0 and pango_layout_get_line_count(layout) - 1), or NULL. [out][allow-none] x_pos location to store resulting position within line (PANGO_SCALE units per device unit), or NULL. [out][allow-none] pango_layout_xy_to_index () pango_layout_xy_to_index gboolean pango_layout_xy_to_index (PangoLayout *layout, int x, int y, int *index_, int *trailing); Converts from X and Y position within a layout to the byte index to the character at that logical position. If the Y position is not inside the layout, the closest position is chosen (the position will be clamped inside the layout). If the X position is not within the layout, then the start or the end of the line is chosen as described for pango_layout_line_x_to_index(). If either the X or Y positions were not inside the layout, then the function returns FALSE; on an exact hit, it returns TRUE. Parameters layout a PangoLayout x the X offset (in Pango units) from the left edge of the layout. y the Y offset (in Pango units) from the top edge of the layout index_ location to store calculated byte index. [out] trailing location to store a integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the leading edge of the grapheme. [out] Returns TRUE if the coordinates were inside text, FALSE otherwise. pango_layout_get_cursor_pos () pango_layout_get_cursor_pos void pango_layout_get_cursor_pos (PangoLayout *layout, int index_, PangoRectangle *strong_pos, PangoRectangle *weak_pos); Given an index within a layout, determines the positions that of the strong and weak cursors if the insertion point is at that index. The position of each cursor is stored as a zero-width rectangle. The strong cursor location is the location where characters of the directionality equal to the base direction of the layout are inserted. The weak cursor location is the location where characters of the directionality opposite to the base direction of the layout are inserted. Parameters layout a PangoLayout index_ the byte index of the cursor strong_pos location to store the strong cursor position (may be NULL). [out][allow-none] weak_pos location to store the weak cursor position (may be NULL). [out][allow-none] pango_layout_move_cursor_visually () pango_layout_move_cursor_visually void pango_layout_move_cursor_visually (PangoLayout *layout, gboolean strong, int old_index, int old_trailing, int direction, int *new_index, int *new_trailing); Computes a new cursor position from an old position and a count of positions to move visually. If direction is positive, then the new strong cursor position will be one position to the right of the old cursor position. If direction is negative, then the new strong cursor position will be one position to the left of the old cursor position. In the presence of bidirectional text, the correspondence between logical and visual order will depend on the direction of the current run, and there may be jumps when the cursor is moved off of the end of a run. Motion here is in cursor positions, not in characters, so a single call to pango_layout_move_cursor_visually() may move the cursor over multiple characters when multiple characters combine to form a single grapheme. Parameters layout a PangoLayout. strong whether the moving cursor is the strong cursor or the weak cursor. The strong cursor is the cursor corresponding to text insertion in the base direction for the layout. old_index the byte index of the grapheme for the old index old_trailing if 0, the cursor was at the leading edge of the grapheme indicated by old_index , if > 0, the cursor was at the trailing edge. direction direction to move cursor. A negative value indicates motion to the left. new_index location to store the new cursor byte index. A value of -1 indicates that the cursor has been moved off the beginning of the layout. A value of G_MAXINT indicates that the cursor has been moved off the end of the layout. [out] new_trailing number of characters to move forward from the location returned for new_index to get the position where the cursor should be displayed. This allows distinguishing the position at the beginning of one line from the position at the end of the preceding line. new_index is always on the line where the cursor should be displayed. [out] pango_layout_get_extents () pango_layout_get_extents void pango_layout_get_extents (PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Computes the logical and ink extents of layout . Logical extents are usually what you want for positioning things. Note that both extents may have non-zero x and y. You may want to use those to offset where you render the layout. Not doing that is a very typical bug that shows up as right-to-left layouts not being correctly positioned in a layout with a set width. The extents are given in layout coordinates and in Pango units; layout coordinates begin at the top left corner of the layout. Parameters layout a PangoLayout ink_rect rectangle used to store the extents of the layout as drawn or NULL to indicate that the result is not needed. [out][allow-none] logical_rect rectangle used to store the logical extents of the layout or NULL to indicate that the result is not needed. [out][allow-none] pango_layout_get_pixel_extents () pango_layout_get_pixel_extents void pango_layout_get_pixel_extents (PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Computes the logical and ink extents of layout in device units. This function just calls pango_layout_get_extents() followed by two pango_extents_to_pixels() calls, rounding ink_rect and logical_rect such that the rounded rectangles fully contain the unrounded one (that is, passes them as first argument to pango_extents_to_pixels()). Parameters layout a PangoLayout ink_rect rectangle used to store the extents of the layout as drawn or NULL to indicate that the result is not needed. [out][allow-none] logical_rect rectangle used to store the logical extents of the layout or NULL to indicate that the result is not needed. [out][allow-none] pango_layout_get_size () pango_layout_get_size void pango_layout_get_size (PangoLayout *layout, int *width, int *height); Determines the logical width and height of a PangoLayout in Pango units (device units scaled by PANGO_SCALE). This is simply a convenience function around pango_layout_get_extents(). Parameters layout a PangoLayout width location to store the logical width, or NULL. [out][allow-none] height location to store the logical height, or NULL. [out][allow-none] pango_layout_get_pixel_size () pango_layout_get_pixel_size void pango_layout_get_pixel_size (PangoLayout *layout, int *width, int *height); Determines the logical width and height of a PangoLayout in device units. (pango_layout_get_size() returns the width and height scaled by PANGO_SCALE.) This is simply a convenience function around pango_layout_get_pixel_extents(). Parameters layout a PangoLayout width location to store the logical width, or NULL. [out][allow-none] height location to store the logical height, or NULL. [out][allow-none] pango_layout_get_baseline () pango_layout_get_baseline int pango_layout_get_baseline (PangoLayout *layout); Gets the Y position of baseline of the first line in layout . Parameters layout a PangoLayout Returns baseline of first line, from top of layout . Since: 1.22 pango_layout_get_line_count () pango_layout_get_line_count int pango_layout_get_line_count (PangoLayout *layout); Retrieves the count of lines for the layout . Parameters layout PangoLayout Returns the line count. pango_layout_get_line () pango_layout_get_line PangoLayoutLine * pango_layout_get_line (PangoLayout *layout, int line); Retrieves a particular line from a PangoLayout. Use the faster pango_layout_get_line_readonly() if you do not plan to modify the contents of the line (glyphs, glyph widths, etc.). Parameters layout a PangoLayout line the index of a line, which must be between 0 and pango_layout_get_line_count(layout) - 1, inclusive. Returns the requested PangoLayoutLine, or NULL if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout. [transfer none][nullable] pango_layout_get_line_readonly () pango_layout_get_line_readonly PangoLayoutLine * pango_layout_get_line_readonly (PangoLayout *layout, int line); Retrieves a particular line from a PangoLayout. This is a faster alternative to pango_layout_get_line(), but the user is not expected to modify the contents of the line (glyphs, glyph widths, etc.). Parameters layout a PangoLayout line the index of a line, which must be between 0 and pango_layout_get_line_count(layout) - 1, inclusive. Returns the requested PangoLayoutLine, or NULL if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout. No changes should be made to the line. [transfer none][nullable] Since: 1.16 pango_layout_get_lines () pango_layout_get_lines GSList * pango_layout_get_lines (PangoLayout *layout); Returns the lines of the layout as a list. Use the faster pango_layout_get_lines_readonly() if you do not plan to modify the contents of the lines (glyphs, glyph widths, etc.). Parameters layout a PangoLayout Returns a GSList containing the lines in the layout. This points to internal data of the PangoLayout and must be used with care. It will become invalid on any change to the layout's text or properties. [element-type Pango.LayoutLine][transfer none] pango_layout_get_lines_readonly () pango_layout_get_lines_readonly GSList * pango_layout_get_lines_readonly (PangoLayout *layout); Returns the lines of the layout as a list. This is a faster alternative to pango_layout_get_lines(), but the user is not expected to modify the contents of the lines (glyphs, glyph widths, etc.). Parameters layout a PangoLayout Returns a GSList containing the lines in the layout. This points to internal data of the PangoLayout and must be used with care. It will become invalid on any change to the layout's text or properties. No changes should be made to the lines. [element-type Pango.LayoutLine][transfer none] Since: 1.16 pango_layout_get_iter () pango_layout_get_iter PangoLayoutIter * pango_layout_get_iter (PangoLayout *layout); Returns an iterator to iterate over the visual extents of the layout. Parameters layout a PangoLayout Returns the new PangoLayoutIter that should be freed using pango_layout_iter_free(). pango_layout_iter_copy () pango_layout_iter_copy PangoLayoutIter * pango_layout_iter_copy (PangoLayoutIter *iter); Copies a PangoLayoutIter. Parameters iter a PangoLayoutIter, may be NULL. [nullable] Returns the newly allocated PangoLayoutIter, which should be freed with pango_layout_iter_free(), or NULL if iter was NULL. [nullable] Since: 1.20 pango_layout_iter_free () pango_layout_iter_free void pango_layout_iter_free (PangoLayoutIter *iter); Frees an iterator that's no longer in use. Parameters iter a PangoLayoutIter, may be NULL. [nullable] pango_layout_iter_next_run () pango_layout_iter_next_run gboolean pango_layout_iter_next_run (PangoLayoutIter *iter); Moves iter forward to the next run in visual order. If iter was already at the end of the layout, returns FALSE. Parameters iter a PangoLayoutIter Returns whether motion was possible. pango_layout_iter_next_char () pango_layout_iter_next_char gboolean pango_layout_iter_next_char (PangoLayoutIter *iter); Moves iter forward to the next character in visual order. If iter was already at the end of the layout, returns FALSE. Parameters iter a PangoLayoutIter Returns whether motion was possible. pango_layout_iter_next_cluster () pango_layout_iter_next_cluster gboolean pango_layout_iter_next_cluster (PangoLayoutIter *iter); Moves iter forward to the next cluster in visual order. If iter was already at the end of the layout, returns FALSE. Parameters iter a PangoLayoutIter Returns whether motion was possible. pango_layout_iter_next_line () pango_layout_iter_next_line gboolean pango_layout_iter_next_line (PangoLayoutIter *iter); Moves iter forward to the start of the next line. If iter is already on the last line, returns FALSE. Parameters iter a PangoLayoutIter Returns whether motion was possible. pango_layout_iter_at_last_line () pango_layout_iter_at_last_line gboolean pango_layout_iter_at_last_line (PangoLayoutIter *iter); Determines whether iter is on the last line of the layout. Parameters iter a PangoLayoutIter Returns TRUE if iter is on the last line. pango_layout_iter_get_index () pango_layout_iter_get_index int pango_layout_iter_get_index (PangoLayoutIter *iter); Gets the current byte index. Note that iterating forward by char moves in visual order, not logical order, so indexes may not be sequential. Also, the index may be equal to the length of the text in the layout, if on the NULL run (see pango_layout_iter_get_run()). Parameters iter a PangoLayoutIter Returns current byte index. pango_layout_iter_get_baseline () pango_layout_iter_get_baseline int pango_layout_iter_get_baseline (PangoLayoutIter *iter); Gets the Y position of the current line's baseline, in layout coordinates (origin at top left of the entire layout). Parameters iter a PangoLayoutIter Returns baseline of current line. pango_layout_iter_get_run () pango_layout_iter_get_run PangoLayoutRun * pango_layout_iter_get_run (PangoLayoutIter *iter); Gets the current run. When iterating by run, at the end of each line, there's a position with a NULL run, so this function can return NULL. The NULL run at the end of each line ensures that all lines have at least one run, even lines consisting of only a newline. Use the faster pango_layout_iter_get_run_readonly() if you do not plan to modify the contents of the run (glyphs, glyph widths, etc.). Parameters iter a PangoLayoutIter Returns the current run. [transfer none][nullable] pango_layout_iter_get_run_readonly () pango_layout_iter_get_run_readonly PangoLayoutRun * pango_layout_iter_get_run_readonly (PangoLayoutIter *iter); Gets the current run. When iterating by run, at the end of each line, there's a position with a NULL run, so this function can return NULL. The NULL run at the end of each line ensures that all lines have at least one run, even lines consisting of only a newline. This is a faster alternative to pango_layout_iter_get_run(), but the user is not expected to modify the contents of the run (glyphs, glyph widths, etc.). Parameters iter a PangoLayoutIter Returns the current run, that should not be modified. [transfer none][nullable] Since: 1.16 pango_layout_iter_get_line () pango_layout_iter_get_line PangoLayoutLine * pango_layout_iter_get_line (PangoLayoutIter *iter); Gets the current line. Use the faster pango_layout_iter_get_line_readonly() if you do not plan to modify the contents of the line (glyphs, glyph widths, etc.). Parameters iter a PangoLayoutIter Returns the current line. [transfer none] pango_layout_iter_get_line_readonly () pango_layout_iter_get_line_readonly PangoLayoutLine * pango_layout_iter_get_line_readonly (PangoLayoutIter *iter); Gets the current line for read-only access. This is a faster alternative to pango_layout_iter_get_line(), but the user is not expected to modify the contents of the line (glyphs, glyph widths, etc.). Parameters iter a PangoLayoutIter Returns the current line, that should not be modified. [transfer none] Since: 1.16 pango_layout_iter_get_layout () pango_layout_iter_get_layout PangoLayout * pango_layout_iter_get_layout (PangoLayoutIter *iter); Gets the layout associated with a PangoLayoutIter. Parameters iter a PangoLayoutIter Returns the layout associated with iter . [transfer none] Since: 1.20 pango_layout_iter_get_char_extents () pango_layout_iter_get_char_extents void pango_layout_iter_get_char_extents (PangoLayoutIter *iter, PangoRectangle *logical_rect); Gets the extents of the current character, in layout coordinates (origin is the top left of the entire layout). Only logical extents can sensibly be obtained for characters; ink extents make sense only down to the level of clusters. Parameters iter a PangoLayoutIter logical_rect rectangle to fill with logical extents. [out caller-allocates] pango_layout_iter_get_cluster_extents () pango_layout_iter_get_cluster_extents void pango_layout_iter_get_cluster_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Gets the extents of the current cluster, in layout coordinates (origin is the top left of the entire layout). Parameters iter a PangoLayoutIter ink_rect rectangle to fill with ink extents, or NULL. [out][allow-none] logical_rect rectangle to fill with logical extents, or NULL. [out][allow-none] pango_layout_iter_get_run_extents () pango_layout_iter_get_run_extents void pango_layout_iter_get_run_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Gets the extents of the current run in layout coordinates (origin is the top left of the entire layout). Parameters iter a PangoLayoutIter ink_rect rectangle to fill with ink extents, or NULL. [out][allow-none] logical_rect rectangle to fill with logical extents, or NULL. [out][allow-none] pango_layout_iter_get_line_yrange () pango_layout_iter_get_line_yrange void pango_layout_iter_get_line_yrange (PangoLayoutIter *iter, int *y0_, int *y1_); Divides the vertical space in the PangoLayout being iterated over between the lines in the layout, and returns the space belonging to the current line. A line's range includes the line's logical extents, plus half of the spacing above and below the line, if pango_layout_set_spacing() has been called to set layout spacing. The Y positions are in layout coordinates (origin at top left of the entire layout). Note: Since 1.44, Pango uses line heights for placing lines, and there may be gaps between the ranges returned by this function. Parameters iter a PangoLayoutIter y0_ start of line, or NULL. [out][allow-none] y1_ end of line, or NULL. [out][allow-none] pango_layout_iter_get_line_extents () pango_layout_iter_get_line_extents void pango_layout_iter_get_line_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Obtains the extents of the current line. ink_rect or logical_rect can be NULL if you aren't interested in them. Extents are in layout coordinates (origin is the top-left corner of the entire PangoLayout). Thus the extents returned by this function will be the same width/height but not at the same x/y as the extents returned from pango_layout_line_get_extents(). Parameters iter a PangoLayoutIter ink_rect rectangle to fill with ink extents, or NULL. [out][allow-none] logical_rect rectangle to fill with logical extents, or NULL. [out][allow-none] pango_layout_iter_get_layout_extents () pango_layout_iter_get_layout_extents void pango_layout_iter_get_layout_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Obtains the extents of the PangoLayout being iterated over. ink_rect or logical_rect can be NULL if you aren't interested in them. Parameters iter a PangoLayoutIter ink_rect rectangle to fill with ink extents, or NULL. [out][allow-none] logical_rect rectangle to fill with logical extents, or NULL. [out][allow-none] pango_layout_line_ref () pango_layout_line_ref PangoLayoutLine * pango_layout_line_ref (PangoLayoutLine *line); Increase the reference count of a PangoLayoutLine by one. Parameters line a PangoLayoutLine, may be NULL. [nullable] Returns the line passed in. Since: 1.10 pango_layout_line_unref () pango_layout_line_unref void pango_layout_line_unref (PangoLayoutLine *line); Decrease the reference count of a PangoLayoutLine by one. If the result is zero, the line and all associated memory will be freed. Parameters line a PangoLayoutLine pango_layout_line_get_extents () pango_layout_line_get_extents void pango_layout_line_get_extents (PangoLayoutLine *line, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Computes the logical and ink extents of a layout line. See pango_font_get_glyph_extents() for details about the interpretation of the rectangles. Parameters line a PangoLayoutLine ink_rect rectangle used to store the extents of the glyph string as drawn, or NULL. [out][allow-none] logical_rect rectangle used to store the logical extents of the glyph string, or NULL. [out][allow-none] pango_layout_line_get_pixel_extents () pango_layout_line_get_pixel_extents void pango_layout_line_get_pixel_extents (PangoLayoutLine *layout_line, PangoRectangle *ink_rect, PangoRectangle *logical_rect); Computes the logical and ink extents of layout_line in device units. This function just calls pango_layout_line_get_extents() followed by two pango_extents_to_pixels() calls, rounding ink_rect and logical_rect such that the rounded rectangles fully contain the unrounded one (that is, passes them as first argument to pango_extents_to_pixels()). Parameters layout_line a PangoLayoutLine ink_rect rectangle used to store the extents of the glyph string as drawn, or NULL. [out][allow-none] logical_rect rectangle used to store the logical extents of the glyph string, or NULL. [out][allow-none] pango_layout_line_index_to_x () pango_layout_line_index_to_x void pango_layout_line_index_to_x (PangoLayoutLine *line, int index_, gboolean trailing, int *x_pos); Converts an index within a line to a X position. Parameters line a PangoLayoutLine index_ byte offset of a grapheme within the layout trailing an integer indicating the edge of the grapheme to retrieve the position of. If > 0, the trailing edge of the grapheme, if 0, the leading of the grapheme. x_pos location to store the x_offset (in Pango unit). [out] pango_layout_line_x_to_index () pango_layout_line_x_to_index gboolean pango_layout_line_x_to_index (PangoLayoutLine *line, int x_pos, int *index_, int *trailing); Converts from x offset to the byte index of the corresponding character within the text of the layout. If x_pos is outside the line, index_ and trailing will point to the very first or very last position in the line. This determination is based on the resolved direction of the paragraph; for example, if the resolved direction is right-to-left, then an X position to the right of the line (after it) results in 0 being stored in index_ and trailing . An X position to the left of the line results in index_ pointing to the (logical) last grapheme in the line and trailing being set to the number of characters in that grapheme. The reverse is true for a left-to-right line. Parameters line a PangoLayoutLine x_pos the X offset (in Pango units) from the left edge of the line. index_ location to store calculated byte index for the grapheme in which the user clicked. [out] trailing location to store an integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the leading edge of the grapheme. [out] Returns FALSE if x_pos was outside the line, TRUE if inside pango_layout_line_get_x_ranges () pango_layout_line_get_x_ranges void pango_layout_line_get_x_ranges (PangoLayoutLine *line, int start_index, int end_index, int **ranges, int *n_ranges); Gets a list of visual ranges corresponding to a given logical range. This list is not necessarily minimal - there may be consecutive ranges which are adjacent. The ranges will be sorted from left to right. The ranges are with respect to the left edge of the entire layout, not with respect to the line. Parameters line a PangoLayoutLine start_index Start byte index of the logical range. If this value is less than the start index for the line, then the first range will extend all the way to the leading edge of the layout. Otherwise it will start at the leading edge of the first character. end_index Ending byte index of the logical range. If this value is greater than the end index for the line, then the last range will extend all the way to the trailing edge of the layout. Otherwise, it will end at the trailing edge of the last character. ranges location to store a pointer to an array of ranges. The array will be of length 2*n_ranges, with each range starting at (*ranges)[2*n] and of width (*ranges)[2*n + 1] - (*ranges)[2*n]. This array must be freed with g_free(). The coordinates are relative to the layout and are in Pango units. [out][array length=n_ranges][transfer full] n_ranges The number of ranges stored in ranges . pango_layout_line_get_height () pango_layout_line_get_height void pango_layout_line_get_height (PangoLayoutLine *line, int *height); Computes the height of the line, ie the distance between this and the previous lines baseline. Parameters line a PangoLayoutLine height return location for the line height. [out][allow-none] Since: 1.44 Types and Values PangoLayout PangoLayout typedef struct _PangoLayout PangoLayout; The PangoLayout structure represents an entire paragraph of text. It is initialized with a PangoContext, UTF-8 string and set of attributes for that string. Once that is done, the set of formatted lines can be extracted from the object, the layout can be rendered, and conversion between logical character positions within the layout's text, and the physical position of the resulting glyphs can be made. There are also a number of parameters to adjust the formatting of a PangoLayout, which are illustrated in . It is possible, as well, to ignore the 2-D setup, and simply treat the results of a PangoLayout as a list of lines.
Adjustable parameters (on the left) and font metrics (on the right) for a PangoLayout
The PangoLayout structure is opaque, and has no user-visible fields. PangoLayoutIter PangoLayoutIter typedef struct _PangoLayoutIter PangoLayoutIter; A PangoLayoutIter structure can be used to iterate over the visual extents of a PangoLayout. The PangoLayoutIter structure is opaque, and has no user-visible fields. enum PangoWrapMode PangoWrapMode A PangoWrapMode describes how to wrap the lines of a PangoLayout to the desired width. Members PANGO_WRAP_WORD wrap lines at word boundaries. PANGO_WRAP_CHAR wrap lines at character boundaries. PANGO_WRAP_WORD_CHAR wrap lines at word boundaries, but fall back to character boundaries if there is not enough space for a full word. enum PangoEllipsizeMode PangoEllipsizeMode The PangoEllipsizeMode type describes what sort of (if any) ellipsization should be applied to a line of text. In the ellipsization process characters are removed from the text in order to make it fit to a given width and replaced with an ellipsis. Members PANGO_ELLIPSIZE_NONE No ellipsization PANGO_ELLIPSIZE_START Omit characters at the start of the text PANGO_ELLIPSIZE_MIDDLE Omit characters in the middle of the text PANGO_ELLIPSIZE_END Omit characters at the end of the text enum PangoAlignment PangoAlignment A PangoAlignment describes how to align the lines of a PangoLayout within the available space. If the PangoLayout is set to justify using pango_layout_set_justify(), this only has effect for partial lines. Members PANGO_ALIGN_LEFT Put all available space on the right PANGO_ALIGN_CENTER Center the line within the available space PANGO_ALIGN_RIGHT Put all available space on the left struct PangoLayoutLine PangoLayoutLine struct PangoLayoutLine { PangoLayout *layout; gint start_index; /* start of line as byte index into layout->text */ gint length; /* length of line in bytes */ GSList *runs; guint is_paragraph_start : 1; /* TRUE if this is the first line of the paragraph */ guint resolved_dir : 3; /* Resolved PangoDirection of line */ }; The PangoLayoutLine structure represents one of the lines resulting from laying out a paragraph via PangoLayout. PangoLayoutLine structures are obtained by calling pango_layout_get_line() and are only valid until the text, attributes, or settings of the parent PangoLayout are modified. Routines for rendering PangoLayout objects are provided in code specific to each rendering system. Members PangoLayout *layout; the layout this line belongs to, might be NULL. [allow-none] gint start_index; start of line as byte index into layout->text gint length; length of line in bytes GSList *runs; list of runs in the line, from left to right. [allow-none][element-type Pango.LayoutRun] guint is_paragraph_start : 1; TRUE if this is the first line of the paragraph guint resolved_dir : 3; Resolved PangoDirection of line PangoLayoutRun PangoLayoutRun typedef PangoGlyphItem PangoLayoutRun; The PangoLayoutRun structure represents a single run within a PangoLayoutLine; it is simply an alternate name for PangoGlyphItem. See the PangoGlyphItem docs for details on the fields. docs/xml/scripts.xml0000664000175000017500000021725414002404352014654 0ustar mclasenmclasen ]> Scripts and Languages 3 PANGO Library Scripts and Languages Identifying writing systems and languages Functions PangoScript pango_script_for_unichar () PangoLanguage * pango_script_get_sample_language () PangoScriptIter * pango_script_iter_new () void pango_script_iter_get_range () gboolean pango_script_iter_next () void pango_script_iter_free () PangoLanguage * pango_language_from_string () const char * pango_language_to_string () gboolean pango_language_matches () gboolean pango_language_includes_script () const PangoScript * pango_language_get_scripts () PangoLanguage * pango_language_get_default () PangoLanguage ** pango_language_get_preferred () const char * pango_language_get_sample_string () Types and Values enumPangoScript PangoScriptIter PangoLanguage Object Hierarchy GBoxed ├── PangoLanguage ╰── PangoScriptIter GEnum ╰── PangoScript Description The functions in this section are used to identify the writing system, or script of individual characters and of ranges within a larger text string. Functions pango_script_for_unichar () pango_script_for_unicharpango_script_for_unichar PangoScript pango_script_for_unichar (gunichar ch); pango_script_for_unichar has been deprecated since version 1.44. and should not be used in newly-written code. Use g_unichar_get_script() Looks up the script for a particular character (as defined by Unicode Standard Annex #24). No check is made for ch being a valid Unicode character; if you pass in invalid character, the result is undefined. Note that while the return type of this function is declared as PangoScript, as of Pango 1.18, this function simply returns the return value of g_unichar_get_script(). Callers must be prepared to handle unknown values. Parameters ch a Unicode character Returns the PangoScript for the character. Since: 1.4 pango_script_get_sample_language () pango_script_get_sample_language PangoLanguage * pango_script_get_sample_language (PangoScript script); Given a script, finds a language tag that is reasonably representative of that script. This will usually be the most widely spoken or used language written in that script: for instance, the sample language for PANGO_SCRIPT_CYRILLIC is ru (Russian), the sample language for PANGO_SCRIPT_ARABIC is ar. For some scripts, no sample language will be returned because there is no language that is sufficiently representative. The best example of this is PANGO_SCRIPT_HAN, where various different variants of written Chinese, Japanese, and Korean all use significantly different sets of Han characters and forms of shared characters. No sample language can be provided for many historical scripts as well. As of 1.18, this function checks the environment variables PANGO_LANGUAGE and LANGUAGE (checked in that order) first. If one of them is set, it is parsed as a list of language tags separated by colons or other separators. This function will return the first language in the parsed list that Pango believes may use script for writing. This last predicate is tested using pango_language_includes_script(). This can be used to control Pango's font selection for non-primary languages. For example, a PANGO_LANGUAGE enviroment variable set to "en:fa" makes Pango choose fonts suitable for Persian (fa) instead of Arabic (ar) when a segment of Arabic text is found in an otherwise non-Arabic text. The same trick can be used to choose a default language for PANGO_SCRIPT_HAN when setting context language is not feasible. Parameters script a PangoScript Returns a PangoLanguage that is representative of the script, or NULL if no such language exists. [nullable] Since: 1.4 pango_script_iter_new () pango_script_iter_new PangoScriptIter * pango_script_iter_new (const char *text, int length); Create a new PangoScriptIter, used to break a string of Unicode text into runs by Unicode script. No copy is made of text , so the caller needs to make sure it remains valid until the iterator is freed with pango_script_iter_free(). Parameters text a UTF-8 string length length of text , or -1 if text is nul-terminated. Returns the new script iterator, initialized to point at the first range in the text, which should be freed with pango_script_iter_free(). If the string is empty, it will point at an empty range. Since: 1.4 pango_script_iter_get_range () pango_script_iter_get_range void pango_script_iter_get_range (PangoScriptIter *iter, const char **start, const char **end, PangoScript *script); Gets information about the range to which iter currently points. The range is the set of locations p where *start <= p < *end. (That is, it doesn't include the character stored at *end) Note that while the type of the script argument is declared as PangoScript, as of Pango 1.18, this function simply returns GUnicodeScript values. Callers must be prepared to handle unknown values. Parameters iter a PangoScriptIter start location to store start position of the range, or NULL. [out][allow-none] end location to store end position of the range, or NULL. [out][allow-none] script location to store script for range, or NULL. [out][allow-none] Since: 1.4 pango_script_iter_next () pango_script_iter_next gboolean pango_script_iter_next (PangoScriptIter *iter); Advances a PangoScriptIter to the next range. If iter is already at the end, it is left unchanged and FALSE is returned. Parameters iter a PangoScriptIter Returns TRUE if iter was successfully advanced. Since: 1.4 pango_script_iter_free () pango_script_iter_free void pango_script_iter_free (PangoScriptIter *iter); Frees a PangoScriptIter created with pango_script_iter_new(). Parameters iter a PangoScriptIter Since: 1.4 pango_language_from_string () pango_language_from_string PangoLanguage * pango_language_from_string (const char *language); Take a RFC-3066 format language tag as a string and convert it to a PangoLanguage pointer that can be efficiently copied (copy the pointer) and compared with other language tags (compare the pointer.) This function first canonicalizes the string by converting it to lowercase, mapping '_' to '-', and stripping all characters other than letters and '-'. Use pango_language_get_default() if you want to get the PangoLanguage for the current locale of the process. Parameters language a string representing a language tag, or NULL. [allow-none] Returns an opaque pointer to a PangoLanguage structure, or NULL if language was NULL. The returned pointer will be valid forever after, and should not be freed. [transfer none][nullable] pango_language_to_string () pango_language_to_string const char * pango_language_to_string (PangoLanguage *language); Gets the RFC-3066 format string representing the given language tag. Parameters language a language tag. Returns a string representing the language tag. This is owned by Pango and should not be freed. pango_language_matches () pango_language_matches gboolean pango_language_matches (PangoLanguage *language, const char *range_list); Checks if a language tag matches one of the elements in a list of language ranges. A language tag is considered to match a range in the list if the range is '*', the range is exactly the tag, or the range is a prefix of the tag, and the character after it in the tag is '-'. Parameters language a language tag (see pango_language_from_string()), NULL is allowed and matches nothing but '*'. [nullable] range_list a list of language ranges, separated by ';', ':', ',', or space characters. Each element must either be '*', or a RFC 3066 language range canonicalized as by pango_language_from_string() Returns TRUE if a match was found. pango_language_includes_script () pango_language_includes_script gboolean pango_language_includes_script (PangoLanguage *language, PangoScript script); Determines if script is one of the scripts used to write language . The returned value is conservative; if nothing is known about the language tag language , TRUE will be returned, since, as far as Pango knows, script might be used to write language . This routine is used in Pango's itemization process when determining if a supplied language tag is relevant to a particular section of text. It probably is not useful for applications in most circumstances. This function uses pango_language_get_scripts() internally. Parameters language a PangoLanguage, or NULL. [nullable] script a PangoScript Returns TRUE if script is one of the scripts used to write language or if nothing is known about language (including the case that language is NULL), FALSE otherwise. Since: 1.4 pango_language_get_scripts () pango_language_get_scripts const PangoScript * pango_language_get_scripts (PangoLanguage *language, int *num_scripts); Determines the scripts used to to write language . If nothing is known about the language tag language , or if language is NULL, then NULL is returned. The list of scripts returned starts with the script that the language uses most and continues to the one it uses least. The value num_script points at will be set to the number of scripts in the returned array (or zero if NULL is returned). Most languages use only one script for writing, but there are some that use two (Latin and Cyrillic for example), and a few use three (Japanese for example). Applications should not make any assumptions on the maximum number of scripts returned though, except that it is positive if the return value is not NULL, and it is a small number. The pango_language_includes_script() function uses this function internally. Note: while the return value is declared as PangoScript, the returned values are from the GUnicodeScript enumeration, which may have more values. Callers need to handle unknown values. Parameters language a PangoLanguage, or NULL. [allow-none] num_scripts location to return number of scripts, or NULL. [out caller-allocates][allow-none] Returns An array of PangoScript values, with the number of entries in the array stored in num_scripts , or NULL if Pango does not have any information about this particular language tag (also the case if language is NULL). The returned array is owned by Pango and should not be modified or freed. [array length=num_scripts][nullable] Since: 1.22 pango_language_get_default () pango_language_get_default PangoLanguage * pango_language_get_default (void); Returns the PangoLanguage for the current locale of the process. Note that this can change over the life of an application. On Unix systems, this is the return value is derived from setlocale(LC_CTYPE, NULL), and the user can affect this through the environment variables LC_ALL, LC_CTYPE or LANG (checked in that order). The locale string typically is in the form lang_COUNTRY, where lang is an ISO-639 language code, and COUNTRY is an ISO-3166 country code. For instance, sv_FI for Swedish as written in Finland or pt_BR for Portuguese as written in Brazil. On Windows, the C library does not use any such environment variables, and setting them won't affect the behavior of functions like ctime(). The user sets the locale through the Regional Options in the Control Panel. The C library (in the setlocale() function) does not use country and language codes, but country and language names spelled out in English. However, this function does check the above environment variables, and does return a Unix-style locale string based on either said environment variables or the thread's current locale. Your application should call setlocale(LC_ALL, ""); for the user settings to take effect. Gtk+ does this in its initialization functions automatically (by calling gtk_set_locale()). See man setlocale for more details. Returns the default language as a PangoLanguage, must not be freed. [transfer none] Since: 1.16 pango_language_get_preferred () pango_language_get_preferred PangoLanguage ** pango_language_get_preferred (void); Returns the list of languages that the user prefers, as specified by the PANGO_LANGUAGE or LANGUAGE environment variables, in order of preference. Note that this list does not necessarily include the language returned by pango_language_get_default(). When choosing language-specific resources, such as the sample text returned by pango_language_get_sample_string(), you should first try the default language, followed by the languages returned by this function. Returns a NULL-terminated array of PangoLanguage*. [transfer none][nullable] Since: 1.48 pango_language_get_sample_string () pango_language_get_sample_string const char * pango_language_get_sample_string (PangoLanguage *language); Get a string that is representative of the characters needed to render a particular language. The sample text may be a pangram, but is not necessarily. It is chosen to be demonstrative of normal text in the language, as well as exposing font feature requirements unique to the language. It is suitable for use as sample text in a font selection dialog. If language is NULL, the default language as found by pango_language_get_default() is used. If Pango does not have a sample string for language , the classic "The quick brown fox..." is returned. This can be detected by comparing the returned pointer value to that returned for (non-existent) language code "xx". That is, compare to: pango_language_get_sample_string (pango_language_from_string ("xx")) Parameters language a PangoLanguage, or NULL. [nullable] Returns the sample string. This value is owned by Pango and should not be freed. Types and Values enum PangoScript PangoScript The PangoScript enumeration identifies different writing systems. The values correspond to the names as defined in the Unicode standard. See Unicode Standard Annex 24: Script names. Note that this enumeration is deprecated and will not be updated to include values in newer versions of the Unicode standard. Applications should use the GUnicodeScript enumeration instead, whose values are interchangeable with PangoScript. Members PANGO_SCRIPT_INVALID_CODE a value never returned from pango_script_for_unichar() PANGO_SCRIPT_COMMON a character used by multiple different scripts PANGO_SCRIPT_INHERITED a mark glyph that takes its script from the base glyph to which it is attached PANGO_SCRIPT_ARABIC Arabic PANGO_SCRIPT_ARMENIAN Armenian PANGO_SCRIPT_BENGALI Bengali PANGO_SCRIPT_BOPOMOFO Bopomofo PANGO_SCRIPT_CHEROKEE Cherokee PANGO_SCRIPT_COPTIC Coptic PANGO_SCRIPT_CYRILLIC Cyrillic PANGO_SCRIPT_DESERET Deseret PANGO_SCRIPT_DEVANAGARI Devanagari PANGO_SCRIPT_ETHIOPIC Ethiopic PANGO_SCRIPT_GEORGIAN Georgian PANGO_SCRIPT_GOTHIC Gothic PANGO_SCRIPT_GREEK Greek PANGO_SCRIPT_GUJARATI Gujarati PANGO_SCRIPT_GURMUKHI Gurmukhi PANGO_SCRIPT_HAN Han PANGO_SCRIPT_HANGUL Hangul PANGO_SCRIPT_HEBREW Hebrew PANGO_SCRIPT_HIRAGANA Hiragana PANGO_SCRIPT_KANNADA Kannada PANGO_SCRIPT_KATAKANA Katakana PANGO_SCRIPT_KHMER Khmer PANGO_SCRIPT_LAO Lao PANGO_SCRIPT_LATIN Latin PANGO_SCRIPT_MALAYALAM Malayalam PANGO_SCRIPT_MONGOLIAN Mongolian PANGO_SCRIPT_MYANMAR Myanmar PANGO_SCRIPT_OGHAM Ogham PANGO_SCRIPT_OLD_ITALIC Old Italic PANGO_SCRIPT_ORIYA Oriya PANGO_SCRIPT_RUNIC Runic PANGO_SCRIPT_SINHALA Sinhala PANGO_SCRIPT_SYRIAC Syriac PANGO_SCRIPT_TAMIL Tamil PANGO_SCRIPT_TELUGU Telugu PANGO_SCRIPT_THAANA Thaana PANGO_SCRIPT_THAI Thai PANGO_SCRIPT_TIBETAN Tibetan PANGO_SCRIPT_CANADIAN_ABORIGINAL Canadian Aboriginal PANGO_SCRIPT_YI Yi PANGO_SCRIPT_TAGALOG Tagalog PANGO_SCRIPT_HANUNOO Hanunoo PANGO_SCRIPT_BUHID Buhid PANGO_SCRIPT_TAGBANWA Tagbanwa PANGO_SCRIPT_BRAILLE Braille PANGO_SCRIPT_CYPRIOT Cypriot PANGO_SCRIPT_LIMBU Limbu PANGO_SCRIPT_OSMANYA Osmanya PANGO_SCRIPT_SHAVIAN Shavian PANGO_SCRIPT_LINEAR_B Linear B PANGO_SCRIPT_TAI_LE Tai Le PANGO_SCRIPT_UGARITIC Ugaritic PANGO_SCRIPT_NEW_TAI_LUE New Tai Lue. Since 1.10 PANGO_SCRIPT_BUGINESE Buginese. Since 1.10 PANGO_SCRIPT_GLAGOLITIC Glagolitic. Since 1.10 PANGO_SCRIPT_TIFINAGH Tifinagh. Since 1.10 PANGO_SCRIPT_SYLOTI_NAGRI Syloti Nagri. Since 1.10 PANGO_SCRIPT_OLD_PERSIAN Old Persian. Since 1.10 PANGO_SCRIPT_KHAROSHTHI Kharoshthi. Since 1.10 PANGO_SCRIPT_UNKNOWN an unassigned code point. Since 1.14 PANGO_SCRIPT_BALINESE Balinese. Since 1.14 PANGO_SCRIPT_CUNEIFORM Cuneiform. Since 1.14 PANGO_SCRIPT_PHOENICIAN Phoenician. Since 1.14 PANGO_SCRIPT_PHAGS_PA Phags-pa. Since 1.14 PANGO_SCRIPT_NKO N'Ko. Since 1.14 PANGO_SCRIPT_KAYAH_LI Kayah Li. Since 1.20.1 PANGO_SCRIPT_LEPCHA Lepcha. Since 1.20.1 PANGO_SCRIPT_REJANG Rejang. Since 1.20.1 PANGO_SCRIPT_SUNDANESE Sundanese. Since 1.20.1 PANGO_SCRIPT_SAURASHTRA Saurashtra. Since 1.20.1 PANGO_SCRIPT_CHAM Cham. Since 1.20.1 PANGO_SCRIPT_OL_CHIKI Ol Chiki. Since 1.20.1 PANGO_SCRIPT_VAI Vai. Since 1.20.1 PANGO_SCRIPT_CARIAN Carian. Since 1.20.1 PANGO_SCRIPT_LYCIAN Lycian. Since 1.20.1 PANGO_SCRIPT_LYDIAN Lydian. Since 1.20.1 PANGO_SCRIPT_BATAK Batak. Since 1.32 PANGO_SCRIPT_BRAHMI Brahmi. Since 1.32 PANGO_SCRIPT_MANDAIC Mandaic. Since 1.32 PANGO_SCRIPT_CHAKMA Chakma. Since: 1.32 PANGO_SCRIPT_MEROITIC_CURSIVE Meroitic Cursive. Since: 1.32 PANGO_SCRIPT_MEROITIC_HIEROGLYPHS Meroitic Hieroglyphs. Since: 1.32 PANGO_SCRIPT_MIAO Miao. Since: 1.32 PANGO_SCRIPT_SHARADA Sharada. Since: 1.32 PANGO_SCRIPT_SORA_SOMPENG Sora Sompeng. Since: 1.32 PANGO_SCRIPT_TAKRI Takri. Since: 1.32 PANGO_SCRIPT_BASSA_VAH Bassa. Since: 1.40 PANGO_SCRIPT_CAUCASIAN_ALBANIAN Caucasian Albanian. Since: 1.40 PANGO_SCRIPT_DUPLOYAN Duployan. Since: 1.40 PANGO_SCRIPT_ELBASAN Elbasan. Since: 1.40 PANGO_SCRIPT_GRANTHA Grantha. Since: 1.40 PANGO_SCRIPT_KHOJKI Kjohki. Since: 1.40 PANGO_SCRIPT_KHUDAWADI Khudawadi, Sindhi. Since: 1.40 PANGO_SCRIPT_LINEAR_A Linear A. Since: 1.40 PANGO_SCRIPT_MAHAJANI Mahajani. Since: 1.40 PANGO_SCRIPT_MANICHAEAN Manichaean. Since: 1.40 PANGO_SCRIPT_MENDE_KIKAKUI Mende Kikakui. Since: 1.40 PANGO_SCRIPT_MODI Modi. Since: 1.40 PANGO_SCRIPT_MRO Mro. Since: 1.40 PANGO_SCRIPT_NABATAEAN Nabataean. Since: 1.40 PANGO_SCRIPT_OLD_NORTH_ARABIAN Old North Arabian. Since: 1.40 PANGO_SCRIPT_OLD_PERMIC Old Permic. Since: 1.40 PANGO_SCRIPT_PAHAWH_HMONG Pahawh Hmong. Since: 1.40 PANGO_SCRIPT_PALMYRENE Palmyrene. Since: 1.40 PANGO_SCRIPT_PAU_CIN_HAU Pau Cin Hau. Since: 1.40 PANGO_SCRIPT_PSALTER_PAHLAVI Psalter Pahlavi. Since: 1.40 PANGO_SCRIPT_SIDDHAM Siddham. Since: 1.40 PANGO_SCRIPT_TIRHUTA Tirhuta. Since: 1.40 PANGO_SCRIPT_WARANG_CITI Warang Citi. Since: 1.40 PANGO_SCRIPT_AHOM Ahom. Since: 1.40 PANGO_SCRIPT_ANATOLIAN_HIEROGLYPHS Anatolian Hieroglyphs. Since: 1.40 PANGO_SCRIPT_HATRAN Hatran. Since: 1.40 PANGO_SCRIPT_MULTANI Multani. Since: 1.40 PANGO_SCRIPT_OLD_HUNGARIAN Old Hungarian. Since: 1.40 PANGO_SCRIPT_SIGNWRITING Signwriting. Since: 1.40 PangoScriptIter PangoScriptIter typedef struct _PangoScriptIter PangoScriptIter; A PangoScriptIter is used to iterate through a string and identify ranges in different scripts. PangoLanguage PangoLanguage typedef struct _PangoLanguage PangoLanguage; The PangoLanguage structure is used to represent a language. PangoLanguage pointers can be efficiently copied and compared with each other. docs/xml/engines.xml0000664000175000017500000003647314002404352014617 0ustar mclasenmclasen ]> Engines 3 PANGO Library Engines Language-specific and rendering-system-specific processing Functions void script_engine_list () void script_engine_init () void script_engine_exit () PangoEngine * script_engine_create () Types and Values structPangoEngineInfo structPangoEngineScriptInfo structPangoEngine structPangoEngineClass Object Hierarchy GObject ╰── PangoEngine ├── PangoEngineLang ╰── PangoEngineShape Description Pango used to have a module architecture in which the language-specific and render-system-specific components are provided by loadable modules. This is no longer the case, and all the APIs related to modules and engines should not be used anymore. Functions script_engine_list () script_engine_list void script_engine_list (PangoEngineInfo **engines, int *n_engines); script_engine_list has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. [skip] Parameters engines location to store a pointer to an array of engines. n_engines location to store the number of elements in engines . script_engine_init () script_engine_init void script_engine_init (GTypeModule *module); script_engine_init has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. [skip] Parameters module a GTypeModule structure used to associate any GObject types created in this module with the module. script_engine_exit () script_engine_exit void script_engine_exit (void); script_engine_exit has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. [skip] script_engine_create () script_engine_create PangoEngine * script_engine_create (const char *id); script_engine_create has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. [skip] Parameters id the ID of an engine as reported by script_engine_list. Types and Values struct PangoEngineInfo PangoEngineInfo struct PangoEngineInfo { const gchar *id; const gchar *engine_type; const gchar *render_type; PangoEngineScriptInfo *scripts; gint n_scripts; }; PangoEngineInfo has been deprecated since version 1.38 and should not be used in newly-written code. The PangoEngineInfo structure contains information about a particular engine. It contains the following fields: Members const gchar *id; a unique string ID for the engine. const gchar *engine_type; a string identifying the engine type. const gchar *render_type; a string identifying the render type. PangoEngineScriptInfo *scripts; array of scripts this engine supports. gint n_scripts; number of items in scripts . struct PangoEngineScriptInfo PangoEngineScriptInfo struct PangoEngineScriptInfo { PangoScript script; const gchar *langs; }; PangoEngineScriptInfo has been deprecated since version 1.38 and should not be used in newly-written code. The PangoEngineScriptInfo structure contains information about how the shaper covers a particular script. Members PangoScript script; a PangoScript. The value PANGO_SCRIPT_COMMON has the special meaning here of "all scripts" const gchar *langs; a semicolon separated list of languages that this engine handles for this script. This may be empty, in which case the engine is saying that it is a fallback choice for all languages for this range, but should not be used if another engine indicates that it is specific for the language for a given code point. An entry in this list of "*" indicates that this engine is specific to all languages for this range. struct PangoEngine PangoEngine struct PangoEngine; PangoEngine has been deprecated since version 1.38 and should not be used in newly-written code. PangoEngine is the base class for all types of language and script specific engines. It has no functionality by itself. struct PangoEngineClass PangoEngineClass struct PangoEngineClass { }; PangoEngineClass has been deprecated since version 1.38 and should not be used in newly-written code. Class structure for PangoEngine docs/xml/pango-engine-lang.xml0000664000175000017500000002364714002404352016454 0ustar mclasenmclasen ]> PangoEngineLang 3 PANGO Library PangoEngineLang Rendering-system independent script engines Stability Level Unstable, unless otherwise indicated Functions #definePANGO_ENGINE_LANG_DEFINE_TYPE() Types and Values PangoEngineLang structPangoEngineLangClass #definePANGO_ENGINE_TYPE_LANG Object Hierarchy GObject ╰── PangoEngine ╰── PangoEngineLang Description The language engines are rendering-system independent engines that determine line, word, and character breaks for character strings. These engines are used in pango_break(). Functions PANGO_ENGINE_LANG_DEFINE_TYPE() PANGO_ENGINE_LANG_DEFINE_TYPE #define PANGO_ENGINE_LANG_DEFINE_TYPE(name, prefix, class_init, instance_init) PANGO_ENGINE_LANG_DEFINE_TYPE has been deprecated since version 1.38 and should not be used in newly-written code. Outputs the necessary code for GObject type registration for a PangoEngineLang class defined in a module. Two static symbols are defined. static GType prefix_type; static void prefix_register_type (GTypeModule module); The prefix_register_type() function should be called in your script_engine_init() function for each type that your module implements, and then your script_engine_create() function can create instances of the object as follows: PangoEngine *engine = g_object_new (prefix_type, NULL); Parameters name Name of the the type to register (for example:, ArabicEngineFc prefix Prefix for symbols that will be defined (for example:, arabic_engine_fc class_init Class initialization function for the new type, or NULL. [nullable] instance_init Instance initialization function for the new type, or NULL. [nullable] Types and Values PangoEngineLang PangoEngineLang typedef struct _PangoEngineLang PangoEngineLang; PangoEngineLang has been deprecated since version 1.38 and should not be used in newly-written code. The PangoEngineLang class is implemented by engines that customize the rendering-system independent part of the Pango pipeline for a particular script or language. For instance, a custom PangoEngineLang could be provided for Thai to implement the dictionary-based word boundary lookups needed for that language. struct PangoEngineLangClass PangoEngineLangClass struct PangoEngineLangClass { void (*script_break) (PangoEngineLang *engine, const char *text, int len, PangoAnalysis *analysis, PangoLogAttr *attrs, int attrs_len); }; PangoEngineLangClass has been deprecated since version 1.38 and should not be used in newly-written code. Class structure for PangoEngineLang Members script_break () Provides a custom implementation of pango_break(). If NULL, pango_default_break() is used instead. If not NULL, for Pango versions before 1.16 (module interface version before 1.6.0), this was called instead of pango_default_break(), but in newer versions, pango_default_break() is always called and this is called after that to allow tailoring the breaking results. [nullable] PANGO_ENGINE_TYPE_LANG PANGO_ENGINE_TYPE_LANG #define PANGO_ENGINE_TYPE_LANG "PangoEngineLang" PANGO_ENGINE_TYPE_LANG has been deprecated since version 1.38 and should not be used in newly-written code. A string constant defining the engine type for language engines. These engines derive from PangoEngineLang. docs/xml/pango-engine-shape.xml0000664000175000017500000002650414002404352016626 0ustar mclasenmclasen ]> PangoEngineShape 3 PANGO Library PangoEngineShape Rendering-system dependent script engines Stability Level Unstable, unless otherwise indicated Functions #definePANGO_ENGINE_SHAPE_DEFINE_TYPE() Types and Values PangoEngineShape structPangoEngineShapeClass #definePANGO_ENGINE_TYPE_SHAPE Object Hierarchy GObject ╰── PangoEngine ╰── PangoEngineShape Description The shape engines are rendering-system dependent engines that convert character strings into glyph strings. These engines are used in pango_shape(). Functions PANGO_ENGINE_SHAPE_DEFINE_TYPE() PANGO_ENGINE_SHAPE_DEFINE_TYPE #define PANGO_ENGINE_SHAPE_DEFINE_TYPE(name, prefix, class_init, instance_init) PANGO_ENGINE_SHAPE_DEFINE_TYPE has been deprecated since version 1.38 and should not be used in newly-written code. Outputs the necessary code for GObject type registration for a PangoEngineShape class defined in a module. Two static symbols are defined. static GType prefix_type; static void prefix_register_type (GTypeModule module); The prefix_register_type() function should be called in your script_engine_init() function for each type that your module implements, and then your script_engine_create() function can create instances of the object as follows: PangoEngine *engine = g_object_new (prefix_type, NULL); Parameters name Name of the the type to register (for example:, ArabicEngineFc prefix Prefix for symbols that will be defined (for example:, arabic_engine_fc class_init Class initialization function for the new type, or NULL. [nullable] instance_init Instance initialization function for the new type, or NULL. [nullable] Types and Values PangoEngineShape PangoEngineShape typedef struct _PangoEngineShape PangoEngineShape; PangoEngineShape has been deprecated since version 1.38 and should not be used in newly-written code. The PangoEngineShape class is implemented by engines that customize the rendering-system dependent part of the Pango pipeline for a particular script or language. A PangoEngineShape implementation is then specific to both a particular rendering system or group of rendering systems and to a particular script. For instance, there is one PangoEngineShape implementation to handle shaping Arabic for Fontconfig-based backends. struct PangoEngineShapeClass PangoEngineShapeClass struct PangoEngineShapeClass { void (*script_shape) (PangoEngineShape *engine, PangoFont *font, const char *item_text, unsigned int item_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs, const char *paragraph_text, unsigned int paragraph_length); PangoCoverageLevel (*covers) (PangoEngineShape *engine, PangoFont *font, PangoLanguage *language, gunichar wc); }; PangoEngineShapeClass has been deprecated since version 1.38 and should not be used in newly-written code. Class structure for PangoEngineShape Members script_shape () Given a font, a piece of text, and a PangoAnalysis structure, converts characters to glyphs and positions the resulting glyphs. The results are stored in the PangoGlyphString that is passed in. (The implementation should resize it appropriately using pango_glyph_string_set_size()). All fields of the log_clusters and glyphs array must be filled in, with the exception that Pango will automatically generate glyphs->glyphs[i].attr.is_cluster_start using the log_clusters array. Each input character must occur in one of the output logical clusters; if no rendering is desired for a character, this may involve inserting glyphs with the PangoGlyph ID PANGO_GLYPH_EMPTY, which is guaranteed never to render. If the shaping fails for any reason, the shaper should return with an empty (zero-size) glyph string. If the shaper has not set the size on the glyph string yet, simply returning signals the failure too. covers () Returns the characters that this engine can cover with a given font for a given language. If not overridden, the default implementation simply returns the coverage information for the font itself unmodified. PANGO_ENGINE_TYPE_SHAPE PANGO_ENGINE_TYPE_SHAPE #define PANGO_ENGINE_TYPE_SHAPE "PangoEngineShape" PANGO_ENGINE_TYPE_SHAPE has been deprecated since version 1.38 and should not be used in newly-written code. A string constant defining the engine type for shaping engines. These engines derive from PangoEngineShape. docs/xml/modules.xml0000664000175000017500000003525514002404352014634 0ustar mclasenmclasen ]> Modules 3 PANGO Library Modules Support for loadable modules Functions PangoMap * pango_find_map () PangoEngine * pango_map_get_engine () void pango_map_get_engines () void pango_module_register () Types and Values structPangoIncludedModule PangoMap PangoMapEntry Description Functions and macros in this section were used to support loading dynamic modules that add engines to Pango at run time. That is no longer the case, and these APIs should not be used anymore. Functions pango_find_map () pango_find_map PangoMap * pango_find_map (PangoLanguage *language, guint engine_type_id, guint render_type_id); pango_find_map has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. Does not do anything. [skip] Parameters language the language tag for which to find the map engine_type_id the engine type for the map to find render_type_id the render type for the map to find Returns NULL. [transfer none][nullable] pango_map_get_engine () pango_map_get_engine PangoEngine * pango_map_get_engine (PangoMap *map, PangoScript script); pango_map_get_engine has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. Does not do anything. [skip] Parameters map a PangoMap script a PangoScript Returns NULL. [transfer none][nullable] pango_map_get_engines () pango_map_get_enginespango_map_get_engines void pango_map_get_engines (PangoMap *map, PangoScript script, GSList **exact_engines, GSList **fallback_engines); pango_map_get_engines has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. Does not do anything. [skip] Parameters map a PangoMap script a PangoScript exact_engines location to store list of engines that exactly handle this script. [nullable] fallback_engines location to store list of engines that approximately handle this script. [nullable] Since: 1.4 pango_module_register () pango_module_register void pango_module_register (PangoIncludedModule *module); pango_module_register has been deprecated since version 1.38 and should not be used in newly-written code. Do not use. Does not do anything. [skip] Parameters module a PangoIncludedModule Types and Values struct PangoIncludedModule PangoIncludedModule struct PangoIncludedModule { void (*list) (PangoEngineInfo **engines, int *n_engines); void (*init) (GTypeModule *module); void (*exit) (void); PangoEngine *(*create) (const char *id); }; PangoIncludedModule has been deprecated since version 1.38 and should not be used in newly-written code. The PangoIncludedModule structure for a statically linked module contains the functions that would otherwise be loaded from a dynamically loaded module. Members list () a function that lists the engines defined in this module. init () a function to initialize the module. exit () a function to finalize the module. create () a function to create an engine, given the engine name. PangoMap PangoMap typedef struct _PangoMap PangoMap; PangoMap is deprecated and should not be used in newly-written code. PangoMapEntry PangoMapEntry typedef struct _PangoMapEntry PangoMapEntry; PangoMapEntry is deprecated and should not be used in newly-written code. docs/xml/pango-renderer.xml0000664000175000017500000017712514002404352016077 0ustar mclasenmclasen ]> PangoRenderer 3 PANGO Library PangoRenderer Rendering driver base class Functions void pango_renderer_draw_layout () void pango_renderer_draw_layout_line () void pango_renderer_draw_glyphs () void pango_renderer_draw_glyph_item () void pango_renderer_draw_rectangle () void pango_renderer_draw_error_underline () void pango_renderer_draw_trapezoid () void pango_renderer_draw_glyph () void pango_renderer_activate () void pango_renderer_deactivate () void pango_renderer_part_changed () void pango_renderer_set_color () PangoColor * pango_renderer_get_color () void pango_renderer_set_alpha () guint16 pango_renderer_get_alpha () void pango_renderer_set_matrix () const PangoMatrix * pango_renderer_get_matrix () PangoLayout * pango_renderer_get_layout () PangoLayoutLine * pango_renderer_get_layout_line () Types and Values structPangoRenderer enumPangoRenderPart #definePANGO_TYPE_RENDER_PART structPangoRendererClass Object Hierarchy GEnum ╰── PangoRenderPart GObject ╰── PangoRenderer ╰── PangoXftRenderer Description PangoRenderer is a base class that contains the necessary logic for rendering a PangoLayout or PangoLayoutLine. By subclassing PangoRenderer and overriding operations such as draw_glyphs and draw_rectangle , renderers for particular font backends and destinations can be created. Functions pango_renderer_draw_layout () pango_renderer_draw_layout void pango_renderer_draw_layout (PangoRenderer *renderer, PangoLayout *layout, int x, int y); Draws layout with the specified PangoRenderer. Parameters renderer a PangoRenderer layout a PangoLayout x X position of left edge of baseline, in user space coordinates in Pango units. y Y position of left edge of baseline, in user space coordinates in Pango units. Since: 1.8 pango_renderer_draw_layout_line () pango_renderer_draw_layout_line void pango_renderer_draw_layout_line (PangoRenderer *renderer, PangoLayoutLine *line, int x, int y); Draws line with the specified PangoRenderer. Parameters renderer a PangoRenderer line a PangoLayoutLine x X position of left edge of baseline, in user space coordinates in Pango units. y Y position of left edge of baseline, in user space coordinates in Pango units. Since: 1.8 pango_renderer_draw_glyphs () pango_renderer_draw_glyphs void pango_renderer_draw_glyphs (PangoRenderer *renderer, PangoFont *font, PangoGlyphString *glyphs, int x, int y); Draws the glyphs in glyphs with the specified PangoRenderer. Parameters renderer a PangoRenderer font a PangoFont glyphs a PangoGlyphString x X position of left edge of baseline, in user space coordinates in Pango units. y Y position of left edge of baseline, in user space coordinates in Pango units. Since: 1.8 pango_renderer_draw_glyph_item () pango_renderer_draw_glyph_item void pango_renderer_draw_glyph_item (PangoRenderer *renderer, const char *text, PangoGlyphItem *glyph_item, int x, int y); Draws the glyphs in glyph_item with the specified PangoRenderer, embedding the text associated with the glyphs in the output if the output format supports it (PDF for example). Note that text is the start of the text for layout, which is then indexed by glyph_item->item->offset . If text is NULL, this simply calls pango_renderer_draw_glyphs(). The default implementation of this method simply falls back to pango_renderer_draw_glyphs(). Parameters renderer a PangoRenderer text the UTF-8 text that glyph_item refers to, or NULL. [allow-none] glyph_item a PangoGlyphItem x X position of left edge of baseline, in user space coordinates in Pango units. y Y position of left edge of baseline, in user space coordinates in Pango units. Since: 1.22 pango_renderer_draw_rectangle () pango_renderer_draw_rectangle void pango_renderer_draw_rectangle (PangoRenderer *renderer, PangoRenderPart part, int x, int y, int width, int height); Draws an axis-aligned rectangle in user space coordinates with the specified PangoRenderer. This should be called while renderer is already active. Use pango_renderer_activate() to activate a renderer. Parameters renderer a PangoRenderer part type of object this rectangle is part of x X position at which to draw rectangle, in user space coordinates in Pango units y Y position at which to draw rectangle, in user space coordinates in Pango units width width of rectangle in Pango units in user space coordinates height height of rectangle in Pango units in user space coordinates Since: 1.8 pango_renderer_draw_error_underline () pango_renderer_draw_error_underline void pango_renderer_draw_error_underline (PangoRenderer *renderer, int x, int y, int width, int height); Draw a squiggly line that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle) This should be called while renderer is already active. Use pango_renderer_activate() to activate a renderer. Parameters renderer a PangoRenderer x X coordinate of underline, in Pango units in user coordinate system y Y coordinate of underline, in Pango units in user coordinate system width width of underline, in Pango units in user coordinate system height height of underline, in Pango units in user coordinate system Since: 1.8 pango_renderer_draw_trapezoid () pango_renderer_draw_trapezoid void pango_renderer_draw_trapezoid (PangoRenderer *renderer, PangoRenderPart part, double y1_, double x11, double x21, double y2, double x12, double x22); Draws a trapezoid with the parallel sides aligned with the X axis using the given PangoRenderer; coordinates are in device space. Parameters renderer a PangoRenderer part type of object this trapezoid is part of y1_ Y coordinate of top of trapezoid x11 X coordinate of left end of top of trapezoid x21 X coordinate of right end of top of trapezoid y2 Y coordinate of bottom of trapezoid x12 X coordinate of left end of bottom of trapezoid x22 X coordinate of right end of bottom of trapezoid Since: 1.8 pango_renderer_draw_glyph () pango_renderer_draw_glyph void pango_renderer_draw_glyph (PangoRenderer *renderer, PangoFont *font, PangoGlyph glyph, double x, double y); Draws a single glyph with coordinates in device space. Parameters renderer a PangoRenderer font a PangoFont glyph the glyph index of a single glyph x X coordinate of left edge of baseline of glyph y Y coordinate of left edge of baseline of glyph Since: 1.8 pango_renderer_activate () pango_renderer_activate void pango_renderer_activate (PangoRenderer *renderer); Does initial setup before rendering operations on renderer . pango_renderer_deactivate() should be called when done drawing. Calls such as pango_renderer_draw_layout() automatically activate the layout before drawing on it. Calls to pango_renderer_activate() and pango_renderer_deactivate() can be nested and the renderer will only be initialized and deinitialized once. Parameters renderer a PangoRenderer Since: 1.8 pango_renderer_deactivate () pango_renderer_deactivate void pango_renderer_deactivate (PangoRenderer *renderer); Cleans up after rendering operations on renderer . See docs for pango_renderer_activate(). Parameters renderer a PangoRenderer Since: 1.8 pango_renderer_part_changed () pango_renderer_part_changed void pango_renderer_part_changed (PangoRenderer *renderer, PangoRenderPart part); Informs Pango that the way that the rendering is done for part has changed in a way that would prevent multiple pieces being joined together into one drawing call. For instance, if a subclass of PangoRenderer was to add a stipple option for drawing underlines, it needs to call pango_renderer_part_changed (render, PANGO_RENDER_PART_UNDERLINE); When the stipple changes or underlines with different stipples might be joined together. Pango automatically calls this for changes to colors. (See pango_renderer_set_color()) Parameters renderer a PangoRenderer part the part for which rendering has changed. Since: 1.8 pango_renderer_set_color () pango_renderer_set_color void pango_renderer_set_color (PangoRenderer *renderer, PangoRenderPart part, const PangoColor *color); Sets the color for part of the rendering. Also see pango_renderer_set_alpha(). Parameters renderer a PangoRenderer part the part to change the color of color the new color or NULL to unset the current color. [allow-none] Since: 1.8 pango_renderer_get_color () pango_renderer_get_color PangoColor * pango_renderer_get_color (PangoRenderer *renderer, PangoRenderPart part); Gets the current rendering color for the specified part. Parameters renderer a PangoRenderer part the part to get the color for Returns the color for the specified part, or NULL if it hasn't been set and should be inherited from the environment. [transfer none][nullable] Since: 1.8 pango_renderer_set_alpha () pango_renderer_set_alpha void pango_renderer_set_alpha (PangoRenderer *renderer, PangoRenderPart part, guint16 alpha); Sets the alpha for part of the rendering. Note that the alpha may only be used if a color is specified for part as well. Parameters renderer a PangoRenderer part the part to set the alpha for alpha an alpha value between 1 and 65536, or 0 to unset the alpha Since: 1.38 pango_renderer_get_alpha () pango_renderer_get_alpha guint16 pango_renderer_get_alpha (PangoRenderer *renderer, PangoRenderPart part); Gets the current alpha for the specified part. Parameters renderer a PangoRenderer part the part to get the alpha for Returns the alpha for the specified part, or 0 if it hasn't been set and should be inherited from the environment. Since: 1.38 pango_renderer_set_matrix () pango_renderer_set_matrix void pango_renderer_set_matrix (PangoRenderer *renderer, const PangoMatrix *matrix); Sets the transformation matrix that will be applied when rendering. Parameters renderer a PangoRenderer matrix a PangoMatrix, or NULL to unset any existing matrix. (No matrix set is the same as setting the identity matrix.). [allow-none] Since: 1.8 pango_renderer_get_matrix () pango_renderer_get_matrix const PangoMatrix * pango_renderer_get_matrix (PangoRenderer *renderer); Gets the transformation matrix that will be applied when rendering. See pango_renderer_set_matrix(). Parameters renderer a PangoRenderer Returns the matrix, or NULL if no matrix has been set (which is the same as the identity matrix). The returned matrix is owned by Pango and must not be modified or freed. [nullable] Since: 1.8 pango_renderer_get_layout () pango_renderer_get_layout PangoLayout * pango_renderer_get_layout (PangoRenderer *renderer); Gets the layout currently being rendered using renderer . Calling this function only makes sense from inside a subclass's methods, like in its draw_shape vfunc, for example. The returned layout should not be modified while still being rendered. Parameters renderer a PangoRenderer Returns the layout, or NULL if no layout is being rendered using renderer at this time. [transfer none][nullable] Since: 1.20 pango_renderer_get_layout_line () pango_renderer_get_layout_line PangoLayoutLine * pango_renderer_get_layout_line (PangoRenderer *renderer); Gets the layout line currently being rendered using renderer . Calling this function only makes sense from inside a subclass's methods, like in its draw_shape vfunc, for example. The returned layout line should not be modified while still being rendered. Parameters renderer a PangoRenderer Returns the layout line, or NULL if no layout line is being rendered using renderer at this time. [transfer none][nullable] Since: 1.20 Types and Values struct PangoRenderer PangoRenderer struct PangoRenderer { PangoMatrix *matrix; /* May be NULL */ }; PangoRenderer is a base class for objects that are used to render Pango objects such as PangoGlyphString and PangoLayout. Members PangoMatrix *matrix; the current transformation matrix for the Renderer; may be NULL, which should be treated the same as the identity matrix. [nullable] Since: 1.8 enum PangoRenderPart PangoRenderPart PangoRenderPart defines different items to render for such purposes as setting colors. Members PANGO_RENDER_PART_FOREGROUND the text itself PANGO_RENDER_PART_BACKGROUND the area behind the text PANGO_RENDER_PART_UNDERLINE underlines PANGO_RENDER_PART_STRIKETHROUGH strikethrough lines PANGO_RENDER_PART_OVERLINE overlines Since: 1.8 PANGO_TYPE_RENDER_PART PANGO_TYPE_RENDER_PART #define PANGO_TYPE_RENDER_PART (pango_render_part_get_type ()) struct PangoRendererClass PangoRendererClass struct PangoRendererClass { void (*draw_glyphs) (PangoRenderer *renderer, PangoFont *font, PangoGlyphString *glyphs, int x, int y); void (*draw_rectangle) (PangoRenderer *renderer, PangoRenderPart part, int x, int y, int width, int height); void (*draw_error_underline) (PangoRenderer *renderer, int x, int y, int width, int height); void (*draw_shape) (PangoRenderer *renderer, PangoAttrShape *attr, int x, int y); void (*draw_trapezoid) (PangoRenderer *renderer, PangoRenderPart part, double y1_, double x11, double x21, double y2, double x12, double x22); void (*draw_glyph) (PangoRenderer *renderer, PangoFont *font, PangoGlyph glyph, double x, double y); void (*part_changed) (PangoRenderer *renderer, PangoRenderPart part); void (*begin) (PangoRenderer *renderer); void (*end) (PangoRenderer *renderer); void (*prepare_run) (PangoRenderer *renderer, PangoLayoutRun *run); void (*draw_glyph_item) (PangoRenderer *renderer, const char *text, PangoGlyphItem *glyph_item, int x, int y); }; Class structure for PangoRenderer. The following vfuncs take user space coordinates in Pango units and have default implementations: draw_glyphs draw_rectangle draw_error_underline draw_shape draw_glyph_item The default draw_shape implementation draws nothing. The following vfuncs take device space coordinates as doubles and must be implemented: draw_trapezoid draw_glyph Members draw_glyphs () draws a PangoGlyphString draw_rectangle () draws a rectangle draw_error_underline () draws a squiggly line that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. draw_shape () draw content for a glyph shaped with PangoAttrShape. x , y are the coordinates of the left edge of the baseline, in user coordinates. draw_trapezoid () draws a trapezoidal filled area draw_glyph () draws a single glyph part_changed () do renderer specific processing when rendering attributes change begin () Do renderer-specific initialization before drawing end () Do renderer-specific cleanup after drawing prepare_run () updates the renderer for a new run draw_glyph_item () draws a PangoGlyphItem Since: 1.8 docs/xml/win32-fonts.xml0000664000175000017500000014304314002404352015250 0ustar mclasenmclasen ]> Win32 Fonts and Rendering 3 PANGO Library Win32 Fonts and Rendering Font handling and rendering on Windows Functions PangoContext * pango_win32_get_context () void pango_win32_render () void pango_win32_render_transformed () void pango_win32_render_layout_line () void pango_win32_render_layout () PangoGlyph pango_win32_get_unknown_glyph () gint pango_win32_font_get_glyph_index () gboolean pango_win32_font_select_font () void pango_win32_font_done_font () double pango_win32_font_get_metrics_factor () gboolean pango_win32_get_debug_flag () HDC pango_win32_get_dc () PangoWin32FontCache * pango_win32_font_cache_new () void pango_win32_font_cache_free () HFONT pango_win32_font_cache_load () HFONT pango_win32_font_cache_loadw () void pango_win32_font_cache_unload () PangoFontMap * pango_win32_font_map_for_display () void pango_win32_shutdown_display () PangoWin32FontCache * pango_win32_font_map_get_font_cache () LOGFONTA * pango_win32_font_logfont () LOGFONTW * pango_win32_font_logfontw () PangoFontDescription * pango_win32_font_description_from_logfont () PangoFontDescription * pango_win32_font_description_from_logfontw () Types and Values PangoWin32FontCache Description The macros and functions in this section are used to access fonts natively on Win32 systems and to render text in conjunction with Win32 APIs. Functions pango_win32_get_context () pango_win32_get_context PangoContext * pango_win32_get_context (void); pango_win32_get_context has been deprecated since version 1.22 and should not be used in newly-written code. Use pango_win32_font_map_for_display() followed by pango_font_map_create_context() instead. Retrieves a PangoContext appropriate for rendering with Windows fonts. Returns the new PangoContext pango_win32_render () pango_win32_render void pango_win32_render (HDC hdc, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y); Render a PangoGlyphString onto a Windows DC Parameters hdc the device context font the font in which to draw the string glyphs the glyph string to draw x the x position of start of string (in pixels) y the y position of baseline (in pixels) pango_win32_render_transformed () pango_win32_render_transformed void pango_win32_render_transformed (HDC hdc, const PangoMatrix *matrix, PangoFont *font, PangoGlyphString *glyphs, int x, int y); Renders a PangoGlyphString onto a windows DC, possibly transforming the layed-out coordinates through a transformation matrix. Note that the transformation matrix for font is not changed, so to produce correct rendering results, the font must have been loaded using a PangoContext with an identical transformation matrix to that passed in to this function. Parameters hdc a windows device context matrix a PangoMatrix, or NULL to use an identity transformation. [nullable] font the font in which to draw the string glyphs the glyph string to draw x the x position of the start of the string (in Pango units in user space coordinates) y the y position of the baseline (in Pango units in user space coordinates) pango_win32_render_layout_line () pango_win32_render_layout_line void pango_win32_render_layout_line (HDC hdc, PangoLayoutLine *line, int x, int y); Render a PangoLayoutLine onto a device context. For underlining to work property the text alignment of the DC should have TA_BASELINE and TA_LEFT. Parameters hdc DC to use for drawing line a PangoLayoutLine x the x position of start of string (in pixels) y the y position of baseline (in pixels) pango_win32_render_layout () pango_win32_render_layout void pango_win32_render_layout (HDC hdc, PangoLayout *layout, int x, int y); Render a PangoLayoutLine onto an X drawable Parameters hdc HDC to use for drawing layout a PangoLayout x the X position of the left of the layout (in pixels) y the Y position of the top of the layout (in pixels) pango_win32_get_unknown_glyph () pango_win32_get_unknown_glyph PangoGlyph pango_win32_get_unknown_glyph (PangoFont *font, gunichar wc); pango_win32_get_unknown_glyph is deprecated and should not be used in newly-written code. Returns the index of a glyph suitable for drawing wc as an unknown character. Use PANGO_GET_UNKNOWN_GLYPH() instead. Parameters font a PangoFont wc the Unicode character for which a glyph is needed. Returns a glyph index into font pango_win32_font_get_glyph_index () pango_win32_font_get_glyph_index gint pango_win32_font_get_glyph_index (PangoFont *font, gunichar wc); pango_win32_font_get_glyph_index is deprecated and should not be used in newly-written code. Obtains the index of the glyph for wc in font , or 0, if not covered. Parameters font a PangoFont. wc a Unicode character. Returns the glyph index for wc . pango_win32_font_select_font () pango_win32_font_select_font gboolean pango_win32_font_select_font (PangoFont *font, HDC hdc); pango_win32_font_select_font is deprecated and should not be used in newly-written code. Selects the font into the specified DC and changes the mapping mode and world transformation of the DC appropriately for the font. You may want to surround the use of this function with calls to SaveDC() and RestoreDC(). Call pango_win32_font_done_font() when you are done using the DC to release allocated resources. See pango_win32_font_get_metrics_factor() for information about converting from the coordinate space used by this function into Pango units. Parameters font a PangoFont from the Win32 backend hdc a windows device context Returns TRUE if the operation succeeded. pango_win32_font_done_font () pango_win32_font_done_font void pango_win32_font_done_font (PangoFont *font); pango_win32_font_done_font is deprecated and should not be used in newly-written code. Releases any resources allocated by pango_win32_font_done_font() Parameters font a PangoFont from the win32 backend pango_win32_font_get_metrics_factor () pango_win32_font_get_metrics_factor double pango_win32_font_get_metrics_factor (PangoFont *font); pango_win32_font_get_metrics_factor is deprecated and should not be used in newly-written code. Returns the scale factor from logical units in the coordinate space used by pango_win32_font_select_font() to Pango units in user space. Parameters font a PangoFont from the win32 backend Returns factor to multiply logical units by to get Pango units. pango_win32_get_debug_flag () pango_win32_get_debug_flagpango_win32_get_debug_flag gboolean pango_win32_get_debug_flag (void); pango_win32_get_debug_flag is deprecated and should not be used in newly-written code. Returns whether debugging is turned on. Returns TRUE if debugging is turned on. Since: 1.2 pango_win32_get_dc () pango_win32_get_dc HDC pango_win32_get_dc (void); pango_win32_get_dc is deprecated and should not be used in newly-written code. Obtains a handle to the Windows device context that is used by Pango. Returns A handle to the Windows device context that is used by Pango. pango_win32_font_cache_new () pango_win32_font_cache_new PangoWin32FontCache * pango_win32_font_cache_new (void); Creates a font cache. Returns The new font cache. This must be freed with pango_win32_font_cache_free(). pango_win32_font_cache_free () pango_win32_font_cache_free void pango_win32_font_cache_free (PangoWin32FontCache *cache); Frees a PangoWin32FontCache and all associated memory. All fonts loaded through this font cache will be freed along with the cache. Parameters cache a PangoWin32FontCache pango_win32_font_cache_load () pango_win32_font_cache_load HFONT pango_win32_font_cache_load (PangoWin32FontCache *cache, const LOGFONTA *logfont); Creates a HFONT from a LOGFONTA. The result may be newly loaded, or it may have been previously stored Parameters cache a PangoWin32FontCache logfont a pointer to a LOGFONTA structure describing the font to load. Returns The font structure, or NULL if the font could not be loaded. In order to free this structure, you must call pango_win32_font_cache_unload(). [nullable] pango_win32_font_cache_loadw () pango_win32_font_cache_loadw HFONT pango_win32_font_cache_loadw (PangoWin32FontCache *cache, const LOGFONTW *logfont); Creates a HFONT from a LOGFONTW. The result may be newly loaded, or it may have been previously stored Parameters cache a PangoWin32FontCache logfont a pointer to a LOGFONTW structure describing the font to load. Returns The font structure, or NULL if the font could not be loaded. In order to free this structure, you must call pango_win32_font_cache_unload(). [nullable] Since: 1.16 pango_win32_font_cache_unload () pango_win32_font_cache_unload void pango_win32_font_cache_unload (PangoWin32FontCache *cache, HFONT hfont); Frees a font structure previously loaded with pango_win32_font_cache_load(). Parameters cache a PangoWin32FontCache hfont the HFONT to unload pango_win32_font_map_for_display () pango_win32_font_map_for_display PangoFontMap * pango_win32_font_map_for_display (void); Returns a PangoWin32FontMap. Font maps are cached and should not be freed. If the font map is no longer needed, it can be released with pango_win32_shutdown_display(). Returns a PangoFontMap. pango_win32_shutdown_display () pango_win32_shutdown_display void pango_win32_shutdown_display (void); Free cached resources. pango_win32_font_map_get_font_cache () pango_win32_font_map_get_font_cache PangoWin32FontCache * pango_win32_font_map_get_font_cache (PangoFontMap *font_map); Obtains the font cache associated with the given font map. Parameters font_map a PangoWin32FontMap. Returns the PangoWin32FontCache of font_map . pango_win32_font_logfont () pango_win32_font_logfont LOGFONTA * pango_win32_font_logfont (PangoFont *font); Determine the LOGFONTA struct for the specified font. Note that Pango internally uses LOGFONTW structs, so if converting the UTF-16 face name in the LOGFONTW struct to system codepage fails, the returned LOGFONTA will have an emppty face name. To get the LOGFONTW of a PangoFont, use pango_win32_font_logfontw(). It is recommended to do that always even if you don't expect to come across fonts with odd names. Parameters font a PangoFont which must be from the Win32 backend Returns A newly allocated LOGFONTA struct. It must be freed with g_free(). pango_win32_font_logfontw () pango_win32_font_logfontw LOGFONTW * pango_win32_font_logfontw (PangoFont *font); Determine the LOGFONTW struct for the specified font. Parameters font a PangoFont which must be from the Win32 backend Returns A newly allocated LOGFONTW struct. It must be freed with g_free(). Since: 1.16 pango_win32_font_description_from_logfont () pango_win32_font_description_from_logfont PangoFontDescription * pango_win32_font_description_from_logfont (const LOGFONTA *lfp); Creates a PangoFontDescription that matches the specified LOGFONTA. The face name, italicness and weight fields in the LOGFONTA are used to set up the resulting PangoFontDescription. If the face name in the LOGFONTA contains non-ASCII characters the font is temporarily loaded (using CreateFontIndirect()) and an ASCII (usually English) name for it is looked up from the font name tables in the font data. If that doesn't work, the face name is converted from the system codepage to UTF-8 and that is used. Parameters lfp a LOGFONTA Returns the newly allocated PangoFontDescription, which should be freed using pango_font_description_free() Since: 1.12 pango_win32_font_description_from_logfontw () pango_win32_font_description_from_logfontw PangoFontDescription * pango_win32_font_description_from_logfontw (const LOGFONTW *lfp); Creates a PangoFontDescription that matches the specified LOGFONTW. The face name, italicness and weight fields in the LOGFONTW are used to set up the resulting PangoFontDescription. If the face name in the LOGFONTW contains non-ASCII characters the font is temporarily loaded (using CreateFontIndirect()) and an ASCII (usually English) name for it is looked up from the font name tables in the font data. If that doesn't work, the face name is converted from UTF-16 to UTF-8 and that is used. Parameters lfp a LOGFONTW Returns the newly allocated PangoFontDescription, which should be freed using pango_font_description_free() Since: 1.16 Types and Values PangoWin32FontCache PangoWin32FontCache typedef struct _PangoWin32FontCache PangoWin32FontCache; A PangoWin32FontCache caches HFONTs by their LOGFONT descriptions. docs/xml/freetype-fonts.xml0000664000175000017500000014056414002404352016136 0ustar mclasenmclasen ]> FreeType Fonts and Rendering 3 PANGO Library FreeType Fonts and Rendering Font handling and rendering with FreeType Functions PangoFontMap * pango_ft2_font_map_new () void pango_ft2_font_map_set_resolution () PangoContext * pango_ft2_font_map_create_context () void (*PangoFT2SubstituteFunc) () void pango_ft2_font_map_set_default_substitute () void pango_ft2_font_map_substitute_changed () PangoContext * pango_ft2_get_context () void pango_ft2_render () void pango_ft2_render_transformed () void pango_ft2_render_layout_line () void pango_ft2_render_layout_line_subpixel () void pango_ft2_render_layout () void pango_ft2_render_layout_subpixel () PangoGlyph pango_ft2_get_unknown_glyph () int pango_ft2_font_get_kerning () FT_Face pango_ft2_font_get_face () PangoCoverage * pango_ft2_font_get_coverage () PangoFontMap * pango_ft2_font_map_for_display () void pango_ft2_shutdown_display () Types and Values PangoFT2FontMap Object Hierarchy GObject ╰── PangoFontMap ╰── PangoFcFontMap ╰── PangoFT2FontMap Implemented Interfaces PangoFT2FontMap implements GListModel. Description The macros and functions in this section are used to access fonts and render text to bitmaps using the FreeType 2 library. Functions pango_ft2_font_map_new () pango_ft2_font_map_new PangoFontMap * pango_ft2_font_map_new (void); Create a new PangoFT2FontMap object; a fontmap is used to cache information about available fonts, and holds certain global parameters such as the resolution and the default substitute function (see pango_ft2_font_map_set_default_substitute()). Returns the newly created fontmap object. Unref with g_object_unref() when you are finished with it. Since: 1.2 pango_ft2_font_map_set_resolution () pango_ft2_font_map_set_resolution void pango_ft2_font_map_set_resolution (PangoFT2FontMap *fontmap, double dpi_x, double dpi_y); Sets the horizontal and vertical resolutions for the fontmap. Parameters fontmap a PangoFT2FontMap dpi_x dots per inch in the X direction dpi_y dots per inch in the Y direction Since: 1.2 pango_ft2_font_map_create_context () pango_ft2_font_map_create_contextpango_ft2_font_map_create_context PangoContext * pango_ft2_font_map_create_context (PangoFT2FontMap *fontmap); pango_ft2_font_map_create_context has been deprecated since version 1.22 and should not be used in newly-written code. Use pango_font_map_create_context() instead. Create a PangoContext for the given fontmap. [skip] Parameters fontmap a PangoFT2FontMap Returns the newly created context; free with g_object_unref(). [transfer full] Since: 1.2 PangoFT2SubstituteFunc () PangoFT2SubstituteFunc void (*PangoFT2SubstituteFunc) (FcPattern *pattern, gpointer data); Function type for doing final config tweaking on prepared FcPatterns. Parameters pattern the FcPattern to tweak. data user data. pango_ft2_font_map_set_default_substitute () pango_ft2_font_map_set_default_substitutepango_ft2_font_map_set_default_substitute void pango_ft2_font_map_set_default_substitute (PangoFT2FontMap *fontmap, PangoFT2SubstituteFunc func, gpointer data, GDestroyNotify notify); pango_ft2_font_map_set_default_substitute has been deprecated since version 1.46 and should not be used in newly-written code. Use pango_fc_font_map_set_default_substitute() instead. Sets a function that will be called to do final configuration substitution on a FcPattern before it is used to load the font. This function can be used to do things like set hinting and antialiasing options. Parameters fontmap a PangoFT2FontMap func function to call to to do final config tweaking on FcPattern objects. data data to pass to func notify function to call when data is no longer used. Since: 1.2 pango_ft2_font_map_substitute_changed () pango_ft2_font_map_substitute_changedpango_ft2_font_map_substitute_changed void pango_ft2_font_map_substitute_changed (PangoFT2FontMap *fontmap); pango_ft2_font_map_substitute_changed has been deprecated since version 1.46 and should not be used in newly-written code. Use pango_fc_font_map_substitute_changed() instead. Call this function any time the results of the default substitution function set with pango_ft2_font_map_set_default_substitute() change. That is, if your substitution function will return different results for the same input pattern, you must call this function. Parameters fontmap a PangoFT2FontMap Since: 1.2 pango_ft2_get_context () pango_ft2_get_context PangoContext * pango_ft2_get_context (double dpi_x, double dpi_y); pango_ft2_get_context has been deprecated since version 1.22 and should not be used in newly-written code. Use pango_font_map_create_context() instead. Retrieves a PangoContext for the default PangoFT2 fontmap (see pango_ft2_font_map_for_display()) and sets the resolution for the default fontmap to dpi_x by dpi_y . [skip] Parameters dpi_x the horizontal DPI of the target device dpi_y the vertical DPI of the target device Returns the new PangoContext. [transfer full] pango_ft2_render () pango_ft2_render void pango_ft2_render (FT_Bitmap *bitmap, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y); Renders a PangoGlyphString onto a FreeType2 bitmap. Parameters bitmap the FreeType2 bitmap onto which to draw the string font the font in which to draw the string glyphs the glyph string to draw x the x position of the start of the string (in pixels) y the y position of the baseline (in pixels) pango_ft2_render_transformed () pango_ft2_render_transformed void pango_ft2_render_transformed (FT_Bitmap *bitmap, const PangoMatrix *matrix, PangoFont *font, PangoGlyphString *glyphs, int x, int y); Renders a PangoGlyphString onto a FreeType2 bitmap, possibly transforming the layed-out coordinates through a transformation matrix. Note that the transformation matrix for font is not changed, so to produce correct rendering results, the font must have been loaded using a PangoContext with an identical transformation matrix to that passed in to this function. Parameters bitmap the FreeType2 bitmap onto which to draw the string font the font in which to draw the string matrix a PangoMatrix, or NULL to use an identity transformation. [nullable] glyphs the glyph string to draw x the x position of the start of the string (in Pango units in user space coordinates) y the y position of the baseline (in Pango units in user space coordinates) Since: 1.6 pango_ft2_render_layout_line () pango_ft2_render_layout_line void pango_ft2_render_layout_line (FT_Bitmap *bitmap, PangoLayoutLine *line, int x, int y); Render a PangoLayoutLine onto a FreeType2 bitmap Parameters bitmap a FT_Bitmap to render the line onto line a PangoLayoutLine x the x position of start of string (in pixels) y the y position of baseline (in pixels) pango_ft2_render_layout_line_subpixel () pango_ft2_render_layout_line_subpixel void pango_ft2_render_layout_line_subpixel (FT_Bitmap *bitmap, PangoLayoutLine *line, int x, int y); Render a PangoLayoutLine onto a FreeType2 bitmap, with he location specified in fixed-point Pango units rather than pixels. (Using this will avoid extra inaccuracies from rounding to integer pixels multiple times, even if the final glyph positions are integers.) Parameters bitmap a FT_Bitmap to render the line onto line a PangoLayoutLine x the x position of start of string (in Pango units) y the y position of baseline (in Pango units) Since: 1.6 pango_ft2_render_layout () pango_ft2_render_layout void pango_ft2_render_layout (FT_Bitmap *bitmap, PangoLayout *layout, int x, int y); Render a PangoLayout onto a FreeType2 bitmap Parameters bitmap a FT_Bitmap to render the layout onto layout a PangoLayout x the X position of the left of the layout (in pixels) y the Y position of the top of the layout (in pixels) pango_ft2_render_layout_subpixel () pango_ft2_render_layout_subpixel void pango_ft2_render_layout_subpixel (FT_Bitmap *bitmap, PangoLayout *layout, int x, int y); Render a PangoLayout onto a FreeType2 bitmap, with he location specified in fixed-point Pango units rather than pixels. (Using this will avoid extra inaccuracies from rounding to integer pixels multiple times, even if the final glyph positions are integers.) Parameters bitmap a FT_Bitmap to render the layout onto layout a PangoLayout x the X position of the left of the layout (in Pango units) y the Y position of the top of the layout (in Pango units) Since: 1.6 pango_ft2_get_unknown_glyph () pango_ft2_get_unknown_glyph PangoGlyph pango_ft2_get_unknown_glyph (PangoFont *font); pango_ft2_get_unknown_glyph is deprecated and should not be used in newly-written code. Return the index of a glyph suitable for drawing unknown characters with font , or PANGO_GLYPH_EMPTY if no suitable glyph found. If you want to draw an unknown-box for a character that is not covered by the font, use PANGO_GET_UNKNOWN_GLYPH() instead. Parameters font a PangoFont Returns a glyph index into font , or PANGO_GLYPH_EMPTY pango_ft2_font_get_kerning () pango_ft2_font_get_kerning int pango_ft2_font_get_kerning (PangoFont *font, PangoGlyph left, PangoGlyph right); pango_ft2_font_get_kerning is deprecated and should not be used in newly-written code. Retrieves kerning information for a combination of two glyphs. Use pango_fc_font_kern_glyphs() instead. Parameters font a PangoFont left the left PangoGlyph right the right PangoGlyph Returns The amount of kerning (in Pango units) to apply for the given combination of glyphs. pango_ft2_font_get_face () pango_ft2_font_get_face FT_Face pango_ft2_font_get_face (PangoFont *font); pango_ft2_font_get_face is deprecated and should not be used in newly-written code. Returns the native FreeType2 FT_Face structure used for this PangoFont. This may be useful if you want to use FreeType2 functions directly. Use pango_fc_font_lock_face() instead; when you are done with a face from pango_fc_font_lock_face() you must call pango_fc_font_unlock_face(). [skip] Parameters font a PangoFont Returns a pointer to a FT_Face structure, with the size set correctly, or NULL if font is NULL. [nullable] pango_ft2_font_get_coverage () pango_ft2_font_get_coverage PangoCoverage * pango_ft2_font_get_coverage (PangoFont *font, PangoLanguage *language); pango_ft2_font_get_coverage is deprecated and should not be used in newly-written code. Gets the PangoCoverage for a PangoFT2Font. Use pango_font_get_coverage() instead. Parameters font a Pango FT2 font language a language tag. Returns a PangoCoverage. [transfer full] pango_ft2_font_map_for_display () pango_ft2_font_map_for_display PangoFontMap * pango_ft2_font_map_for_display (void); pango_ft2_font_map_for_display is deprecated and should not be used in newly-written code. Returns a PangoFT2FontMap. This font map is cached and should not be freed. If the font map is no longer needed, it can be released with pango_ft2_shutdown_display(). Use of the global PangoFT2 fontmap is deprecated; use pango_ft2_font_map_new() instead. [skip] Returns a PangoFT2FontMap. [transfer none] pango_ft2_shutdown_display () pango_ft2_shutdown_display void pango_ft2_shutdown_display (void); pango_ft2_shutdown_display is deprecated and should not be used in newly-written code. Free the global fontmap. (See pango_ft2_font_map_for_display()) Use of the global PangoFT2 fontmap is deprecated. Types and Values PangoFT2FontMap PangoFT2FontMap typedef struct _PangoFT2FontMap PangoFT2FontMap; The PangoFT2FontMap is the PangoFontMap implementation for FreeType fonts. docs/xml/xft-fonts.xml0000664000175000017500000017765614002404352015130 0ustar mclasenmclasen ]> Xft Fonts and Rendering 3 PANGO Library Xft Fonts and Rendering Font handling and rendering with the Xft backend Functions PangoContext * pango_xft_get_context () PangoFontMap * pango_xft_get_font_map () void pango_xft_set_default_substitute () void (*PangoXftSubstituteFunc) () void pango_xft_substitute_changed () void pango_xft_shutdown_display () XftFont * pango_xft_font_get_font () Display * pango_xft_font_get_display () gboolean pango_xft_font_has_char () FT_Face pango_xft_font_lock_face () void pango_xft_font_unlock_face () guint pango_xft_font_get_glyph () PangoGlyph pango_xft_font_get_unknown_glyph () PangoRenderer * pango_xft_renderer_new () void pango_xft_renderer_set_draw () void pango_xft_renderer_set_default_color () void pango_xft_render () void pango_xft_picture_render () void pango_xft_render_transformed () void pango_xft_render_layout_line () void pango_xft_render_layout () Properties gpointerdisplayWrite / Construct Only intscreenWrite / Construct Only Types and Values PangoXftFont PangoXftFontMap structPangoXftRenderer structPangoXftRendererClass Object Hierarchy GObject ├── PangoFont │ ╰── PangoFcFont │ ╰── PangoXftFont ├── PangoFontMap │ ╰── PangoFcFontMap │ ╰── PangoXftFontMap ╰── PangoRenderer ╰── PangoXftRenderer Implemented Interfaces PangoXftFontMap implements GListModel. Description The Xft library is a library for displaying fonts on the X window system; internally it uses the fontconfig library to locate font files, and the FreeType library to load and render fonts. The Xft backend is the recommended Pango font backend for screen display with X. (The Cairo back end is another possibility.) Using the Xft backend is generally straightforward; pango_xft_get_context() creates a context for a specified display and screen. You can then create a PangoLayout with that context and render it with pango_xft_render_layout(). At a more advanced level, the low-level fontconfig options used for rendering fonts can be affected using pango_xft_set_default_substitute(), and pango_xft_substitute_changed(). A range of functions for drawing pieces of a layout, such as individual layout lines and glyphs strings are provided. You can also directly create a PangoXftRenderer. Finally, in some advanced cases, it is useful to derive from PangoXftRenderer. Deriving from PangoXftRenderer is useful for two reasons. One reason is be to support custom attributes by overriding PangoRendererClass virtual functions like 'prepare_run' or 'draw_shape'. The reason is to customize exactly how the final bits are drawn to the destination by overriding the PangoXftRendererClass virtual functions 'composite_glyphs' and 'composite_trapezoids'. Functions pango_xft_get_context () pango_xft_get_context PangoContext * pango_xft_get_context (Display *display, int screen); pango_xft_get_context has been deprecated since version 1.22 and should not be used in newly-written code. Use pango_xft_get_font_map() followed by pango_font_map_create_context() instead. Retrieves a PangoContext appropriate for rendering with Xft fonts on the given screen of the given display. [skip] Parameters display an X display. screen an X screen. Returns the new PangoContext. pango_xft_get_font_map () pango_xft_get_font_map PangoFontMap * pango_xft_get_font_map (Display *display, int screen); Returns the PangoXftFontMap for the given display and screen. The fontmap is owned by Pango and will be valid until the display is closed. Parameters display an X display screen the screen number of a screen within display Returns a PangoFontMap object, owned by Pango. [transfer none] Since: 1.2 pango_xft_set_default_substitute () pango_xft_set_default_substitutepango_xft_set_default_substitute void pango_xft_set_default_substitute (Display *display, int screen, PangoXftSubstituteFunc func, gpointer data, GDestroyNotify notify); pango_xft_set_default_substitute has been deprecated since version 1.46 and should not be used in newly-written code. Use pango_fc_font_map_set_default_substitute() instead. Sets a function that will be called to do final configuration substitution on a FcPattern before it is used to load the font. This function can be used to do things like set hinting and antialiasing options. Parameters display an X Display screen the screen number of a screen within display func function to call to to do final config tweaking on FcPattern objects. data data to pass to func notify function to call when data is no longer used. Since: 1.2 PangoXftSubstituteFunc () PangoXftSubstituteFunc void (*PangoXftSubstituteFunc) (FcPattern *pattern, gpointer data); Function type for doing final config tweaking on prepared FcPatterns. Parameters pattern the FcPattern to tweak. data user data. pango_xft_substitute_changed () pango_xft_substitute_changedpango_xft_substitute_changed void pango_xft_substitute_changed (Display *display, int screen); pango_xft_substitute_changed has been deprecated since version 1.46 and should not be used in newly-written code. Use pango_fc_font_map_substitute_changed() instead. Call this function any time the results of the default substitution function set with pango_xft_set_default_substitute() change. That is, if your substitution function will return different results for the same input pattern, you must call this function. Parameters display an X Display screen the screen number of a screen within display Since: 1.2 pango_xft_shutdown_display () pango_xft_shutdown_display void pango_xft_shutdown_display (Display *display, int screen); Release any resources that have been cached for the combination of display and screen . Note that when the X display is closed, resources are released automatically, without needing to call this function. Parameters display an X display screen the screen number of a screen within display Since: 1.2 pango_xft_font_get_font () pango_xft_font_get_font XftFont * pango_xft_font_get_font (PangoFont *font); pango_xft_font_get_font is deprecated and should not be used in newly-written code. Returns the XftFont of a font. [skip] Parameters font a PangoFont. [nullable] Returns the XftFont associated to font , or NULL if font is NULL. [nullable] pango_xft_font_get_display () pango_xft_font_get_display Display * pango_xft_font_get_display (PangoFont *font); pango_xft_font_get_display is deprecated and should not be used in newly-written code. Returns the X display of the XftFont of a font. [skip] Parameters font a PangoFont. [type PangoXftFont] Returns the X display of the XftFont associated to font . [transfer none] pango_xft_font_has_char () pango_xft_font_has_charpango_xft_font_has_char gboolean pango_xft_font_has_char (PangoFont *font, gunichar wc); pango_xft_font_has_char is deprecated and should not be used in newly-written code. Determines whether font has a glyph for the codepoint wc . Use pango_fc_font_has_char() instead. Parameters font a PangoFont for the Xft backend. [type PangoXftFont] wc Unicode codepoint to look up Returns TRUE if font has the requested codepoint. Since: 1.2 pango_xft_font_lock_face () pango_xft_font_lock_facepango_xft_font_lock_face FT_Face pango_xft_font_lock_face (PangoFont *font); pango_xft_font_lock_face is deprecated and should not be used in newly-written code. Gets the FreeType FT_Face associated with a font. This face will be kept around until you call pango_xft_font_unlock_face(). Use pango_fc_font_lock_face() instead. [skip] Parameters font a PangoFont. [type PangoXftFont] Returns the FreeType FT_Face associated with font . Since: 1.2 pango_xft_font_unlock_face () pango_xft_font_unlock_facepango_xft_font_unlock_face void pango_xft_font_unlock_face (PangoFont *font); pango_xft_font_unlock_face is deprecated and should not be used in newly-written code. Releases a font previously obtained with pango_xft_font_lock_face(). Use pango_fc_font_unlock_face() instead. [skip] Parameters font a PangoFont. [type PangoXftFont] Since: 1.2 pango_xft_font_get_glyph () pango_xft_font_get_glyphpango_xft_font_get_glyph guint pango_xft_font_get_glyph (PangoFont *font, gunichar wc); pango_xft_font_get_glyph is deprecated and should not be used in newly-written code. Gets the glyph index for a given Unicode character for font . If you only want to determine whether the font has the glyph, use pango_xft_font_has_char(). Use pango_fc_font_get_glyph() instead. Parameters font a PangoFont for the Xft backend. [type PangoXftFont] wc Unicode codepoint to look up Returns the glyph index, or 0, if the Unicode character does not exist in the font. Since: 1.2 pango_xft_font_get_unknown_glyph () pango_xft_font_get_unknown_glyph PangoGlyph pango_xft_font_get_unknown_glyph (PangoFont *font, gunichar wc); pango_xft_font_get_unknown_glyph is deprecated and should not be used in newly-written code. Returns the index of a glyph suitable for drawing wc as an unknown character. Use PANGO_GET_UNKNOWN_GLYPH() instead. Parameters font a PangoFont. [type PangoXftFont] wc the Unicode character for which a glyph is needed. Returns a glyph index into font . pango_xft_renderer_new () pango_xft_renderer_new PangoRenderer * pango_xft_renderer_new (Display *display, int screen); Create a new PangoXftRenderer to allow rendering Pango objects with the Xft library. You must call pango_xft_renderer_set_draw() before using the renderer. Parameters display an X display screen the index of the screen for display to which rendering will be done Returns the newly created PangoXftRenderer, which should be freed with g_object_unref(). Since: 1.8 pango_xft_renderer_set_draw () pango_xft_renderer_set_draw void pango_xft_renderer_set_draw (PangoXftRenderer *xftrenderer, XftDraw *draw); Sets the XftDraw object that the renderer is drawing to. The renderer must not be currently active. Parameters xftrenderer a PangoXftRenderer draw a XftDraw Since: 1.8 pango_xft_renderer_set_default_color () pango_xft_renderer_set_default_color void pango_xft_renderer_set_default_color (PangoXftRenderer *xftrenderer, PangoColor *default_color); Sets the default foreground color for a XftRenderer. Parameters xftrenderer a XftRenderer default_color the default foreground color Since: 1.8 pango_xft_render () pango_xft_render void pango_xft_render (XftDraw *draw, XftColor *color, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y); Renders a PangoGlyphString onto an XftDraw object wrapping an X drawable. Parameters draw the XftDraw object. color the color in which to draw the string font the font in which to draw the string glyphs the glyph string to draw x the x position of start of string (in pixels) y the y position of baseline (in pixels) pango_xft_picture_render () pango_xft_picture_render void pango_xft_picture_render (Display *display, Picture src_picture, Picture dest_picture, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y); Renders a PangoGlyphString onto an Xrender Picture object. Parameters display an X display src_picture the source picture to draw the string with dest_picture the destination picture to draw the string onto font the font in which to draw the string glyphs the glyph string to draw x the x position of start of string (in pixels) y the y position of baseline (in pixels) pango_xft_render_transformed () pango_xft_render_transformed void pango_xft_render_transformed (XftDraw *draw, XftColor *color, PangoMatrix *matrix, PangoFont *font, PangoGlyphString *glyphs, int x, int y); Renders a PangoGlyphString onto a XftDraw, possibly transforming the layed-out coordinates through a transformation matrix. Note that the transformation matrix for font is not changed, so to produce correct rendering results, the font must have been loaded using a PangoContext with an identical transformation matrix to that passed in to this function. Parameters draw an XftDraw color the color in which to draw the glyphs font the font in which to draw the string matrix a PangoMatrix, or NULL to use an identity transformation. [nullable] glyphs the glyph string to draw x the x position of the start of the string (in Pango units in user space coordinates) y the y position of the baseline (in Pango units in user space coordinates) Since: 1.8 pango_xft_render_layout_line () pango_xft_render_layout_line void pango_xft_render_layout_line (XftDraw *draw, XftColor *color, PangoLayoutLine *line, int x, int y); Render a PangoLayoutLine onto a XftDraw Parameters draw an XftDraw color the foreground color in which to draw the layout line (may be overridden by color attributes) line a PangoLayoutLine x the x position of start of string (in Pango units) y the y position of baseline (in Pango units) Since: 1.8 pango_xft_render_layout () pango_xft_render_layout void pango_xft_render_layout (XftDraw *draw, XftColor *color, PangoLayout *layout, int x, int y); Render a PangoLayout onto a XftDraw Parameters draw an XftDraw color the foreground color in which to draw the layout (may be overridden by color attributes) layout a PangoLayout x the X position of the left of the layout (in Pango units) y the Y position of the top of the layout (in Pango units) Since: 1.8 Types and Values PangoXftFont PangoXftFont typedef struct _PangoXftFont PangoXftFont; PangoXftFont is an implementation of PangoFcFont using the Xft library for rendering. It is used in conjunction with PangoXftFontMap. PangoXftFontMap PangoXftFontMap typedef struct _PangoXftFontMap PangoXftFontMap; PangoXftFontMap is an implementation of PangoFcFontMap suitable for the Xft library as the renderer. It is used in to create fonts of type PangoXftFont. struct PangoXftRenderer PangoXftRenderer struct PangoXftRenderer; PangoXftRenderer is a subclass of PangoRenderer used for rendering with Pango's Xft backend. It can be used directly, or it can be further subclassed to modify exactly how drawing of individual elements occurs. Since: 1.8 struct PangoXftRendererClass PangoXftRendererClass struct PangoXftRendererClass { void (*composite_trapezoids) (PangoXftRenderer *xftrenderer, PangoRenderPart part, XTrapezoid *trapezoids, int n_trapezoids); void (*composite_glyphs) (PangoXftRenderer *xftrenderer, XftFont *xft_font, XftGlyphSpec *glyphs, int n_glyphs); }; The class structure for PangoXftRenderer Members composite_trapezoids () draw the specified trapezoids using the current color and other attributes for part composite_glyphs () draw the specified glyphs using the current foreground color and other foreground attributes Since: 1.8 Property Details The <literal>“displayâ€</literal> property PangoXftRenderer:display “display†gpointer The display being rendered to.Owner: PangoXftRenderer Flags: Write / Construct Only The <literal>“screenâ€</literal> property PangoXftRenderer:screen “screen†int The screen being rendered to.Owner: PangoXftRenderer Flags: Write / Construct Only Allowed values: >= 0 Default value: 0 docs/xml/pangocairo.xml0000664000175000017500000023343514002404352015306 0ustar mclasenmclasen ]> Cairo Fonts and Rendering 3 PANGO Library Cairo Fonts and Rendering Font handling and rendering with Cairo Functions PangoFontMap * pango_cairo_font_map_get_default () void pango_cairo_font_map_set_default () PangoFontMap * pango_cairo_font_map_new () PangoFontMap * pango_cairo_font_map_new_for_font_type () cairo_font_type_t pango_cairo_font_map_get_font_type () void pango_cairo_font_map_set_resolution () double pango_cairo_font_map_get_resolution () PangoContext * pango_cairo_font_map_create_context () cairo_scaled_font_t * pango_cairo_font_get_scaled_font () void pango_cairo_context_set_resolution () double pango_cairo_context_get_resolution () void pango_cairo_context_set_font_options () const cairo_font_options_t * pango_cairo_context_get_font_options () void (*PangoCairoShapeRendererFunc) () void pango_cairo_context_set_shape_renderer () PangoCairoShapeRendererFunc pango_cairo_context_get_shape_renderer () PangoContext * pango_cairo_create_context () void pango_cairo_update_context () PangoLayout * pango_cairo_create_layout () void pango_cairo_update_layout () void pango_cairo_show_glyph_string () void pango_cairo_show_glyph_item () void pango_cairo_show_layout_line () void pango_cairo_show_layout () void pango_cairo_show_error_underline () void pango_cairo_glyph_string_path () void pango_cairo_layout_line_path () void pango_cairo_layout_path () void pango_cairo_error_underline_path () Types and Values PangoCairoFont PangoCairoFontMap Object Hierarchy GInterface ├── PangoCairoFont ╰── PangoCairoFontMap Prerequisites PangoCairoFont requires PangoFont. PangoCairoFontMap requires PangoFontMap. Description The Cairo library is a vector graphics library with a powerful rendering model. It has such features as anti-aliased primitives, alpha-compositing, and gradients. Multiple backends for Cairo are available, to allow rendering to images, to PDF files, and to the screen on X and on other windowing systems. The functions in this section allow using Pango to render to Cairo surfaces. Using Pango with Cairo is straightforward. A PangoContext created with pango_cairo_font_map_create_context() can be used on any Cairo context (cairo_t), but needs to be updated to match the current transformation matrix and target surface of the Cairo context using pango_cairo_update_context(). The convenience functions pango_cairo_create_layout() and pango_cairo_update_layout() handle the common case where the program doesn't need to manipulate the properties of the PangoContext. When you get the metrics of a layout or of a piece of a layout using functions such as pango_layout_get_extents(), the reported metrics are in user-space coordinates. If a piece of text is 10 units long, and you call cairo_scale (cr, 2.0), it still is more-or-less 10 units long. However, the results will be affected by hinting (that is, the process of adjusting the text to look good on the pixel grid), so you shouldn't assume they are completely independent of the current transformation matrix. Note that the basic metrics functions in Pango report results in integer Pango units. To get to the floating point units used in Cairo divide by PANGO_SCALE. Using Pango with Cairo #include static void draw_text (cairo_t *cr) { #define RADIUS 150 #define N_WORDS 10 #define FONT "Sans Bold 27" PangoLayout *layout; PangoFontDescription *desc; int i; /* Center coordinates on the middle of the region we are drawing */ cairo_translate (cr, RADIUS, RADIUS); /* Create a PangoLayout, set the font and text */ layout = pango_cairo_create_layout (cr); pango_layout_set_text (layout, "Text", -1); desc = pango_font_description_from_string (FONT); pango_layout_set_font_description (layout, desc); pango_font_description_free (desc); /* Draw the layout N_WORDS times in a circle */ for (i = 0; i < N_WORDS; i++) { int width, height; double angle = (360. * i) / N_WORDS; double red; cairo_save (cr); /* Gradient from red at angle == 60 to blue at angle == 240 */ red = (1 + cos ((angle - 60) * G_PI / 180.)) / 2; cairo_set_source_rgb (cr, red, 0, 1.0 - red); cairo_rotate (cr, angle * G_PI / 180.); /* Inform Pango to re-layout the text with the new transformation */ pango_cairo_update_layout (cr, layout); pango_layout_get_size (layout, &width, &height); cairo_move_to (cr, - ((double)width / PANGO_SCALE) / 2, - RADIUS); pango_cairo_show_layout (cr, layout); cairo_restore (cr); } /* free the layout object */ g_object_unref (layout); } int main (int argc, char **argv) { cairo_t *cr; char *filename; cairo_status_t status; cairo_surface_t *surface; if (argc != 2) { g_printerr ("Usage: cairosimple OUTPUT_FILENAME\n"); return 1; } filename = argv[1]; surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 2 * RADIUS, 2 * RADIUS); cr = cairo_create (surface); cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); cairo_paint (cr); draw_text (cr); cairo_destroy (cr); status = cairo_surface_write_to_png (surface, filename); cairo_surface_destroy (surface); if (status != CAIRO_STATUS_SUCCESS) { g_printerr ("Could not save png to '%s'\n", filename); return 1; } return 0; } ]]> Once you build and run the example code above, you should see the following result: Output of rotated-example Functions pango_cairo_font_map_get_default () pango_cairo_font_map_get_default PangoFontMap * pango_cairo_font_map_get_default (void); Gets a default PangoCairoFontMap to use with Cairo. Note that the type of the returned object will depend on the particular font backend Cairo was compiled to use; You generally should only use the PangoFontMap and PangoCairoFontMap interfaces on the returned object. The default Cairo fontmap can be changed by using pango_cairo_font_map_set_default(). This can be used to change the Cairo font backend that the default fontmap uses for example. Note that since Pango 1.32.6, the default fontmap is per-thread. Each thread gets its own default fontmap. In this way, PangoCairo can be used safely from multiple threads. Returns the default PangoCairo fontmap for the current thread. This object is owned by Pango and must not be freed. [transfer none] Since: 1.10 pango_cairo_font_map_set_default () pango_cairo_font_map_set_default void pango_cairo_font_map_set_default (PangoCairoFontMap *fontmap); Sets a default PangoCairoFontMap to use with Cairo. This can be used to change the Cairo font backend that the default fontmap uses for example. The old default font map is unreffed and the new font map referenced. Note that since Pango 1.32.6, the default fontmap is per-thread. This function only changes the default fontmap for the current thread. Default fontmaps of existing threads are not changed. Default fontmaps of any new threads will still be created using pango_cairo_font_map_new(). A value of NULL for fontmap will cause the current default font map to be released and a new default font map to be created on demand, using pango_cairo_font_map_new(). Parameters fontmap The new default font map, or NULL. [nullable] Since: 1.22 pango_cairo_font_map_new () pango_cairo_font_map_new PangoFontMap * pango_cairo_font_map_new (void); Creates a new PangoCairoFontMap object; a fontmap is used to cache information about available fonts, and holds certain global parameters such as the resolution. In most cases, you can use pango_cairo_font_map_get_default() instead. Note that the type of the returned object will depend on the particular font backend Cairo was compiled to use; You generally should only use the PangoFontMap and PangoCairoFontMap interfaces on the returned object. You can override the type of backend returned by using an environment variable PANGOCAIRO_BACKEND. Supported types, based on your build, are fc (fontconfig), win32, and coretext. If requested type is not available, NULL is returned. Ie. this is only useful for testing, when at least two backends are compiled in. Returns the newly allocated PangoFontMap, which should be freed with g_object_unref(). [transfer full] Since: 1.10 pango_cairo_font_map_new_for_font_type () pango_cairo_font_map_new_for_font_type PangoFontMap * pango_cairo_font_map_new_for_font_type (cairo_font_type_t fonttype); Creates a new PangoCairoFontMap object of the type suitable to be used with cairo font backend of type fonttype . In most cases one should simply use pango_cairo_font_map_new() , or in fact in most of those cases, just use pango_cairo_font_map_get_default() . Parameters fonttype desired cairo_font_type_t Returns the newly allocated PangoFontMap of suitable type which should be freed with g_object_unref(), or NULL if the requested cairo font backend is not supported / compiled in. [transfer full][nullable] Since: 1.18 pango_cairo_font_map_get_font_type () pango_cairo_font_map_get_font_type cairo_font_type_t pango_cairo_font_map_get_font_type (PangoCairoFontMap *fontmap); Gets the type of Cairo font backend that fontmap uses. Parameters fontmap a PangoCairoFontMap Returns the cairo_font_type_t cairo font backend type Since: 1.18 pango_cairo_font_map_set_resolution () pango_cairo_font_map_set_resolution void pango_cairo_font_map_set_resolution (PangoCairoFontMap *fontmap, double dpi); Sets the resolution for the fontmap. This is a scale factor between points specified in a PangoFontDescription and Cairo units. The default value is 96, meaning that a 10 point font will be 13 units high. (10 * 96. / 72. = 13.3). Parameters fontmap a PangoCairoFontMap dpi the resolution in "dots per inch". (Physical inches aren't actually involved; the terminology is conventional.) Since: 1.10 pango_cairo_font_map_get_resolution () pango_cairo_font_map_get_resolution double pango_cairo_font_map_get_resolution (PangoCairoFontMap *fontmap); Gets the resolution for the fontmap. See pango_cairo_font_map_set_resolution() Parameters fontmap a PangoCairoFontMap Returns the resolution in "dots per inch" Since: 1.10 pango_cairo_font_map_create_context () pango_cairo_font_map_create_contextpango_cairo_font_map_create_context PangoContext * pango_cairo_font_map_create_context (PangoCairoFontMap *fontmap); pango_cairo_font_map_create_context has been deprecated since version 1.22 and should not be used in newly-written code. Use pango_font_map_create_context() instead. Create a PangoContext for the given fontmap. [skip] Parameters fontmap a PangoCairoFontMap Returns the newly created context; free with g_object_unref(). Since: 1.10 pango_cairo_font_get_scaled_font () pango_cairo_font_get_scaled_font cairo_scaled_font_t * pango_cairo_font_get_scaled_font (PangoCairoFont *font); Gets the cairo_scaled_font_t used by font . The scaled font can be referenced and kept using cairo_scaled_font_reference(). Parameters font a PangoFont from a PangoCairoFontMap Returns the cairo_scaled_font_t used by font , or NULL if font is NULL. [transfer none][nullable] Since: 1.18 pango_cairo_context_set_resolution () pango_cairo_context_set_resolution void pango_cairo_context_set_resolution (PangoContext *context, double dpi); Sets the resolution for the context. This is a scale factor between points specified in a PangoFontDescription and Cairo units. The default value is 96, meaning that a 10 point font will be 13 units high. (10 * 96. / 72. = 13.3). Parameters context a PangoContext, from a pangocairo font map dpi the resolution in "dots per inch". (Physical inches aren't actually involved; the terminology is conventional.) A 0 or negative value means to use the resolution from the font map. Since: 1.10 pango_cairo_context_get_resolution () pango_cairo_context_get_resolution double pango_cairo_context_get_resolution (PangoContext *context); Gets the resolution for the context. See pango_cairo_context_set_resolution() Parameters context a PangoContext, from a pangocairo font map Returns the resolution in "dots per inch". A negative value will be returned if no resolution has previously been set. Since: 1.10 pango_cairo_context_set_font_options () pango_cairo_context_set_font_options void pango_cairo_context_set_font_options (PangoContext *context, const cairo_font_options_t *options); Sets the font options used when rendering text with this context. These options override any options that pango_cairo_update_context() derives from the target surface. Parameters context a PangoContext, from a pangocairo font map options a cairo_font_options_t, or NULL to unset any previously set options. A copy is made. [nullable] Since: 1.10 pango_cairo_context_get_font_options () pango_cairo_context_get_font_options const cairo_font_options_t * pango_cairo_context_get_font_options (PangoContext *context); Retrieves any font rendering options previously set with pango_cairo_context_set_font_options(). This function does not report options that are derived from the target surface by pango_cairo_update_context() Parameters context a PangoContext, from a pangocairo font map Returns the font options previously set on the context, or NULL if no options have been set. This value is owned by the context and must not be modified or freed. [nullable] Since: 1.10 PangoCairoShapeRendererFunc () PangoCairoShapeRendererFunc void (*PangoCairoShapeRendererFunc) (cairo_t *cr, PangoAttrShape *attr, gboolean do_path, gpointer data); Function type for rendering attributes of type PANGO_ATTR_SHAPE with Pango's Cairo renderer. Parameters cr a Cairo context with current point set to where the shape should be rendered attr the PANGO_ATTR_SHAPE to render do_path whether only the shape path should be appended to current path of cr and no filling/stroking done. This will be set to TRUE when called from pango_cairo_layout_path() and pango_cairo_layout_line_path() rendering functions. data user data passed to pango_cairo_context_set_shape_renderer(). [closure] pango_cairo_context_set_shape_renderer () pango_cairo_context_set_shape_renderer void pango_cairo_context_set_shape_renderer (PangoContext *context, PangoCairoShapeRendererFunc func, gpointer data, GDestroyNotify dnotify); Sets callback function for context to use for rendering attributes of type PANGO_ATTR_SHAPE. See PangoCairoShapeRendererFunc for details. Parameters context a PangoContext, from a pangocairo font map func Callback function for rendering attributes of type PANGO_ATTR_SHAPE, or NULL to disable shape rendering. [nullable] data User data that will be passed to func . dnotify Callback that will be called when the context is freed to release data , or NULL. Since: 1.18 pango_cairo_context_get_shape_renderer () pango_cairo_context_get_shape_renderer PangoCairoShapeRendererFunc pango_cairo_context_get_shape_renderer (PangoContext *context, gpointer *data); Sets callback function for context to use for rendering attributes of type PANGO_ATTR_SHAPE. See PangoCairoShapeRendererFunc for details. Retrieves callback function and associated user data for rendering attributes of type PANGO_ATTR_SHAPE as set by pango_cairo_context_set_shape_renderer(), if any. [skip] Parameters context a PangoContext, from a pangocairo font map data Pointer to gpointer to return user data Returns the shape rendering callback previously set on the context, or NULL if no shape rendering callback have been set. [transfer none][nullable] Since: 1.18 pango_cairo_create_context () pango_cairo_create_context PangoContext * pango_cairo_create_context (cairo_t *cr); Creates a context object set up to match the current transformation and target surface of the Cairo context. This context can then be used to create a layout using pango_layout_new(). This function is a convenience function that creates a context using the default font map, then updates it to cr . If you just need to create a layout for use with cr and do not need to access PangoContext directly, you can use pango_cairo_create_layout() instead. Parameters cr a Cairo context Returns the newly created PangoContext. Free with g_object_unref(). [transfer full] Since: 1.22 pango_cairo_update_context () pango_cairo_update_context void pango_cairo_update_context (cairo_t *cr, PangoContext *context); Updates a PangoContext previously created for use with Cairo to match the current transformation and target surface of a Cairo context. If any layouts have been created for the context, it's necessary to call pango_layout_context_changed() on those layouts. Parameters cr a Cairo context context a PangoContext, from a pangocairo font map Since: 1.10 pango_cairo_create_layout () pango_cairo_create_layout PangoLayout * pango_cairo_create_layout (cairo_t *cr); Creates a layout object set up to match the current transformation and target surface of the Cairo context. This layout can then be used for text measurement with functions like pango_layout_get_size() or drawing with functions like pango_cairo_show_layout(). If you change the transformation or target surface for cr , you need to call pango_cairo_update_layout() This function is the most convenient way to use Cairo with Pango, however it is slightly inefficient since it creates a separate PangoContext object for each layout. This might matter in an application that was laying out large amounts of text. Parameters cr a Cairo context Returns the newly created PangoLayout. Free with g_object_unref(). [transfer full] Since: 1.10 pango_cairo_update_layout () pango_cairo_update_layout void pango_cairo_update_layout (cairo_t *cr, PangoLayout *layout); Updates the private PangoContext of a PangoLayout created with pango_cairo_create_layout() to match the current transformation and target surface of a Cairo context. Parameters cr a Cairo context layout a PangoLayout, from pango_cairo_create_layout() Since: 1.10 pango_cairo_show_glyph_string () pango_cairo_show_glyph_string void pango_cairo_show_glyph_string (cairo_t *cr, PangoFont *font, PangoGlyphString *glyphs); Draws the glyphs in glyphs in the specified cairo context. The origin of the glyphs (the left edge of the baseline) will be drawn at the current point of the cairo context. Parameters cr a Cairo context font a PangoFont from a PangoCairoFontMap glyphs a PangoGlyphString Since: 1.10 pango_cairo_show_glyph_item () pango_cairo_show_glyph_item void pango_cairo_show_glyph_item (cairo_t *cr, const char *text, PangoGlyphItem *glyph_item); Draws the glyphs in glyph_item in the specified cairo context, embedding the text associated with the glyphs in the output if the output format supports it (PDF for example), otherwise it acts similar to pango_cairo_show_glyph_string(). The origin of the glyphs (the left edge of the baseline) will be drawn at the current point of the cairo context. Note that text is the start of the text for layout, which is then indexed by glyph_item->item->offset . Parameters cr a Cairo context text the UTF-8 text that glyph_item refers to glyph_item a PangoGlyphItem Since: 1.22 pango_cairo_show_layout_line () pango_cairo_show_layout_line void pango_cairo_show_layout_line (cairo_t *cr, PangoLayoutLine *line); Draws a PangoLayoutLine in the specified cairo context. The origin of the glyphs (the left edge of the line) will be drawn at the current point of the cairo context. Parameters cr a Cairo context line a PangoLayoutLine Since: 1.10 pango_cairo_show_layout () pango_cairo_show_layout void pango_cairo_show_layout (cairo_t *cr, PangoLayout *layout); Draws a PangoLayout in the specified cairo context. The top-left corner of the PangoLayout will be drawn at the current point of the cairo context. Parameters cr a Cairo context layout a Pango layout Since: 1.10 pango_cairo_show_error_underline () pango_cairo_show_error_underline void pango_cairo_show_error_underline (cairo_t *cr, double x, double y, double width, double height); Draw a squiggly line in the specified cairo context that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle) Parameters cr a Cairo context x The X coordinate of one corner of the rectangle y The Y coordinate of one corner of the rectangle width Non-negative width of the rectangle height Non-negative height of the rectangle Since: 1.14 pango_cairo_glyph_string_path () pango_cairo_glyph_string_path void pango_cairo_glyph_string_path (cairo_t *cr, PangoFont *font, PangoGlyphString *glyphs); Adds the glyphs in glyphs to the current path in the specified cairo context. The origin of the glyphs (the left edge of the baseline) will be at the current point of the cairo context. Parameters cr a Cairo context font a PangoFont from a PangoCairoFontMap glyphs a PangoGlyphString Since: 1.10 pango_cairo_layout_line_path () pango_cairo_layout_line_path void pango_cairo_layout_line_path (cairo_t *cr, PangoLayoutLine *line); Adds the text in PangoLayoutLine to the current path in the specified cairo context. The origin of the glyphs (the left edge of the line) will be at the current point of the cairo context. Parameters cr a Cairo context line a PangoLayoutLine Since: 1.10 pango_cairo_layout_path () pango_cairo_layout_path void pango_cairo_layout_path (cairo_t *cr, PangoLayout *layout); Adds the text in a PangoLayout to the current path in the specified cairo context. The top-left corner of the PangoLayout will be at the current point of the cairo context. Parameters cr a Cairo context layout a Pango layout Since: 1.10 pango_cairo_error_underline_path () pango_cairo_error_underline_path void pango_cairo_error_underline_path (cairo_t *cr, double x, double y, double width, double height); Add a squiggly line to the current path in the specified cairo context that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle) Parameters cr a Cairo context x The X coordinate of one corner of the rectangle y The Y coordinate of one corner of the rectangle width Non-negative width of the rectangle height Non-negative height of the rectangle Since: 1.14 Types and Values PangoCairoFont PangoCairoFont typedef struct _PangoCairoFont PangoCairoFont; PangoCairoFont is an interface exported by fonts for use with Cairo. The actual type of the font will depend on the particular font technology Cairo was compiled to use. Since: 1.18 PangoCairoFontMap PangoCairoFontMap typedef struct _PangoCairoFontMap PangoCairoFontMap; PangoCairoFontMap is an interface exported by font maps for use with Cairo. The actual type of the font map will depend on the particular font technology Cairo was compiled to use. Since: 1.10 docs/xml/coretext-fonts.xml0000664000175000017500000000612414002404352016141 0ustar mclasenmclasen ]> CoreText Fonts and Rendering 3 PANGO Library CoreText Fonts and Rendering Font handling and rendering on OS X Functions CTFontRef pango_core_text_font_get_ctfont () Description The macros and functions in this section are used to access fonts natively on OS X using the CoreText text rendering subsystem. Functions pango_core_text_font_get_ctfont () pango_core_text_font_get_ctfont CTFontRef pango_core_text_font_get_ctfont (PangoCoreTextFont *font); Returns the CTFontRef of a font. Parameters font A PangoCoreTextFont Returns the CTFontRef associated to font . Since: 1.24 docs/xml/pangofc-fontmap.xml0000664000175000017500000012135514002404352016240 0ustar mclasenmclasen ]> PangoFcFontMap 3 PANGO Library PangoFcFontMap Base fontmap class for Fontconfig-based backends Functions PangoContext * pango_fc_font_map_create_context () PangoFcDecoder * (*PangoFcDecoderFindFunc) () void pango_fc_font_map_add_decoder_find_func () PangoFcDecoder * pango_fc_font_map_find_decoder () void pango_fc_font_map_cache_clear () void pango_fc_font_map_config_changed () void pango_fc_font_map_shutdown () void pango_fc_font_map_set_config () FcConfig * pango_fc_font_map_get_config () void (*PangoFcSubstituteFunc) () void pango_fc_font_map_set_default_substitute () void pango_fc_font_map_substitute_changed () PangoFontDescription * pango_fc_font_description_from_pattern () Types and Values PangoFcFontMap PangoFcFontMapClass #definePANGO_FC_FONT_FEATURES #definePANGO_FC_GRAVITY #definePANGO_FC_VERSION #definePANGO_FC_PRGNAME #definePANGO_FC_FONT_VARIATIONS Object Hierarchy GObject ╰── PangoFontMap ╰── PangoFcFontMap ├── PangoFT2FontMap ╰── PangoXftFontMap Implemented Interfaces PangoFcFontMap implements GListModel. Description PangoFcFontMap is a base class for font map implementations using the Fontconfig and FreeType libraries. It is used in the Xft and FreeType backends shipped with Pango, but can also be used when creating new backends. Any backend deriving from this base class will take advantage of the wide range of shapers implemented using FreeType that come with Pango. Functions pango_fc_font_map_create_context () pango_fc_font_map_create_contextpango_fc_font_map_create_context PangoContext * pango_fc_font_map_create_context (PangoFcFontMap *fcfontmap); pango_fc_font_map_create_context has been deprecated since version 1.22 and should not be used in newly-written code. Use pango_font_map_create_context() instead. Creates a new context for this fontmap. This function is intended only for backend implementations deriving from PangoFcFontMap; it is possible that a backend will store additional information needed for correct operation on the PangoContext after calling this function. Parameters fcfontmap a PangoFcFontMap Returns a new PangoContext. [transfer full] Since: 1.4 PangoFcDecoderFindFunc () PangoFcDecoderFindFunc PangoFcDecoder * (*PangoFcDecoderFindFunc) (FcPattern *pattern, gpointer user_data); Callback function passed to pango_fc_font_map_add_decoder_find_func(). Parameters pattern a fully resolved FcPattern specifying the font on the system user_data user data passed to pango_fc_font_map_add_decoder_find_func() Returns a new reference to a custom decoder for this pattern, or NULL if the default decoder handling should be used. pango_fc_font_map_add_decoder_find_func () pango_fc_font_map_add_decoder_find_func void pango_fc_font_map_add_decoder_find_func (PangoFcFontMap *fcfontmap, PangoFcDecoderFindFunc findfunc, gpointer user_data, GDestroyNotify dnotify); This function saves a callback method in the PangoFcFontMap that will be called whenever new fonts are created. If the function returns a PangoFcDecoder, that decoder will be used to determine both coverage via a FcCharSet and a one-to-one mapping of characters to glyphs. This will allow applications to have application-specific encodings for various fonts. Parameters fcfontmap The PangoFcFontMap to add this method to. findfunc The PangoFcDecoderFindFunc callback function user_data User data. dnotify A GDestroyNotify callback that will be called when the fontmap is finalized and the decoder is released. Since: 1.6 pango_fc_font_map_find_decoder () pango_fc_font_map_find_decoder PangoFcDecoder * pango_fc_font_map_find_decoder (PangoFcFontMap *fcfontmap, FcPattern *pattern); Finds the decoder to use for pattern . Decoders can be added to a font map using pango_fc_font_map_add_decoder_find_func(). Parameters fcfontmap The PangoFcFontMap to use. pattern The FcPattern to find the decoder for. Returns a newly created PangoFcDecoder object or NULL if no decoder is set for pattern . [transfer full][nullable] Since: 1.26 pango_fc_font_map_cache_clear () pango_fc_font_map_cache_clear void pango_fc_font_map_cache_clear (PangoFcFontMap *fcfontmap); Clear all cached information and fontsets for this font map; this should be called whenever there is a change in the output of the default_substitute() virtual function of the font map, or if fontconfig has been reinitialized to new configuration. Parameters fcfontmap a PangoFcFontMap Since: 1.4 pango_fc_font_map_config_changed () pango_fc_font_map_config_changed void pango_fc_font_map_config_changed (PangoFcFontMap *fcfontmap); Informs font map that the fontconfig configuration (ie, FcConfig object) used by this font map has changed. This currently calls pango_fc_font_map_cache_clear() which ensures that list of fonts, etc will be regenerated using the updated configuration. Parameters fcfontmap a PangoFcFontMap Since: 1.38 pango_fc_font_map_shutdown () pango_fc_font_map_shutdown void pango_fc_font_map_shutdown (PangoFcFontMap *fcfontmap); Clears all cached information for the fontmap and marks all fonts open for the fontmap as dead. (See the shutdown() virtual function of PangoFcFont.) This function might be used by a backend when the underlying windowing system for the font map exits. This function is only intended to be called only for backend implementations deriving from PangoFcFontMap. Parameters fcfontmap a PangoFcFontMap Since: 1.4 pango_fc_font_map_set_config () pango_fc_font_map_set_config void pango_fc_font_map_set_config (PangoFcFontMap *fcfontmap, FcConfig *fcconfig); Set the FcConfig for this font map to use. The default value is NULL, which causes Fontconfig to use its global "current config". You can create a new FcConfig object and use this API to attach it to a font map. This is particularly useful for example, if you want to use application fonts with Pango. For that, you would create a fresh FcConfig, add your app fonts to it, and attach it to a new Pango font map. If fcconfig is different from the previous config attached to the font map, pango_fc_font_map_config_changed() is called. This function acquires a reference to the FcConfig object; the caller does NOT need to retain a reference. [skip] Parameters fcfontmap a PangoFcFontMap fcconfig a FcConfig, or NULL. [nullable] Since: 1.38 pango_fc_font_map_get_config () pango_fc_font_map_get_config FcConfig * pango_fc_font_map_get_config (PangoFcFontMap *fcfontmap); Fetches the FcConfig attached to a font map. See also: pango_fc_font_map_set_config() [skip] Parameters fcfontmap a PangoFcFontMap Returns the FcConfig object attached to fcfontmap , which might be NULL. [nullable] Since: 1.38 PangoFcSubstituteFunc () PangoFcSubstituteFunc void (*PangoFcSubstituteFunc) (FcPattern *pattern, gpointer data); Function type for doing final config tweaking on prepared FcPatterns. Parameters pattern the FcPattern to tweak. data user data. pango_fc_font_map_set_default_substitute () pango_fc_font_map_set_default_substitute void pango_fc_font_map_set_default_substitute (PangoFcFontMap *fontmap, PangoFcSubstituteFunc func, gpointer data, GDestroyNotify notify); Sets a function that will be called to do final configuration substitution on a FcPattern before it is used to load the font. This function can be used to do things like set hinting and antialiasing options. Parameters fontmap a PangoFcFontMap func function to call to to do final config tweaking on FcPattern objects. data data to pass to func notify function to call when data is no longer used. Since: 1.48 pango_fc_font_map_substitute_changed () pango_fc_font_map_substitute_changed void pango_fc_font_map_substitute_changed (PangoFcFontMap *fontmap); Call this function any time the results of the default substitution function set with pango_fc_font_map_set_default_substitute() change. That is, if your substitution function will return different results for the same input pattern, you must call this function. Parameters fontmap a PangoFcFontMap Since: 1.48 pango_fc_font_description_from_pattern () pango_fc_font_description_from_pattern PangoFontDescription * pango_fc_font_description_from_pattern (FcPattern *pattern, gboolean include_size); Creates a PangoFontDescription that matches the specified Fontconfig pattern as closely as possible. Many possible Fontconfig pattern values, such as FC_RASTERIZER or FC_DPI, don't make sense in the context of PangoFontDescription, so will be ignored. Parameters pattern a FcPattern include_size if TRUE, the pattern will include the size from the pattern ; otherwise the resulting pattern will be unsized. (only FC_SIZE is examined, not FC_PIXEL_SIZE) Returns a new PangoFontDescription. Free with pango_font_description_free(). Since: 1.4 Types and Values PangoFcFontMap PangoFcFontMap typedef struct _PangoFcFontMap PangoFcFontMap; PangoFcFontMap is a base class for font map implementations using the Fontconfig and FreeType libraries. To create a new backend using Fontconfig and FreeType, you derive from this class and implement a new_font() virtual function that creates an instance deriving from PangoFcFont. PangoFcFontMapClass PangoFcFontMapClass typedef struct _PangoFcFontMapClass PangoFcFontMapClass; Class structure for PangoFcFontMap. Members PANGO_FC_FONT_FEATURES PANGO_FC_FONT_FEATURES #define PANGO_FC_FONT_FEATURES "fontfeatures" String representing a fontconfig property name that Pango reads from font patterns to populate list of OpenType features to be enabled for the font by default. The property will have a number of string elements, each of which is the OpenType feature tag of one feature to enable. This is equivalent to FC_FONT_FEATURES in versions of fontconfig that have that. Since: 1.34 PANGO_FC_GRAVITY PANGO_FC_GRAVITY #define PANGO_FC_GRAVITY "pangogravity" String representing a fontconfig property name that Pango sets on any fontconfig pattern it passes to fontconfig if a PangoGravity other than PANGO_GRAVITY_SOUTH is desired. The property will have a PangoGravity value as a string, like "east". This can be used to write fontconfig configuration rules to choose different fonts for horizontal and vertical writing directions. Since: 1.20 PANGO_FC_VERSION PANGO_FC_VERSION #define PANGO_FC_VERSION "pangoversion" String representing a fontconfig property name that Pango sets on any fontconfig pattern it passes to fontconfig. The property will have an integer value equal to what pango_version() returns. This can be used to write fontconfig configuration rules that only affect certain pango versions (or only pango-using applications, or only non-pango-using applications). Since: 1.20 PANGO_FC_PRGNAME PANGO_FC_PRGNAME #define PANGO_FC_PRGNAME "prgname" String representing a fontconfig property name that Pango sets on any fontconfig pattern it passes to fontconfig. The property will have a string equal to what g_get_prgname() returns. This can be used to write fontconfig configuration rules that only affect certain applications. This is equivalent to FC_PRGNAME in versions of fontconfig that have that. Since: 1.24 PANGO_FC_FONT_VARIATIONS PANGO_FC_FONT_VARIATIONS #define PANGO_FC_FONT_VARIATIONS "fontvariations" String representing a fontconfig property name that Pango reads from font patterns to populate list of OpenType font variations to be used for a font. The property will have a string elements, each of which a comma-separated list of OpenType axis setting of the form AXIS=VALUE. See Also PangoFcFont The base class for fonts; creating a new Fontconfig-based backend involves deriving from both PangoFcFontMap and PangoFcFont. docs/xml/pangofc-font.xml0000664000175000017500000006646514002404352015554 0ustar mclasenmclasen ]> PangoFcFont 3 PANGO Library PangoFcFont Base font class for Fontconfig-based backends Functions FT_Face pango_fc_font_lock_face () void pango_fc_font_unlock_face () gboolean pango_fc_font_has_char () guint pango_fc_font_get_glyph () PangoGlyph pango_fc_font_get_unknown_glyph () void pango_fc_font_kern_glyphs () PangoLanguage ** pango_fc_font_get_languages () FcPattern * pango_fc_font_get_pattern () Properties PangoFcFontMap *fontmapRead / Write gpointerpatternRead / Write / Construct Only Types and Values structPangoFcFont PangoFcFontClass Object Hierarchy GObject ╰── PangoFont ╰── PangoFcFont ╰── PangoXftFont Description PangoFcFont is a base class for font implementation using the Fontconfig and FreeType libraries. It is used in the Xft and FreeType backends shipped with Pango, but can also be used when creating new backends. Any backend deriving from this base class will take advantage of the wide range of shapers implemented using FreeType that come with Pango. Functions pango_fc_font_lock_face () pango_fc_font_lock_facepango_fc_font_lock_face FT_Face pango_fc_font_lock_face (PangoFcFont *font); pango_fc_font_lock_face has been deprecated since version 1.44 and should not be used in newly-written code. Use pango_font_get_hb_font() instead Gets the FreeType FT_Face associated with a font, This face will be kept around until you call pango_fc_font_unlock_face(). [skip] Parameters font a PangoFcFont. Returns the FreeType FT_Face associated with font . Since: 1.4 pango_fc_font_unlock_face () pango_fc_font_unlock_facepango_fc_font_unlock_face void pango_fc_font_unlock_face (PangoFcFont *font); pango_fc_font_unlock_face has been deprecated since version 1.44 and should not be used in newly-written code. Use pango_font_get_hb_font() instead Releases a font previously obtained with pango_fc_font_lock_face(). Parameters font a PangoFcFont. Since: 1.4 pango_fc_font_has_char () pango_fc_font_has_charpango_fc_font_has_char gboolean pango_fc_font_has_char (PangoFcFont *font, gunichar wc); pango_fc_font_has_char has been deprecated since version 1.44 and should not be used in newly-written code. Use pango_font_has_char() Determines whether font has a glyph for the codepoint wc . Parameters font a PangoFcFont wc Unicode codepoint to look up Returns TRUE if font has the requested codepoint. Since: 1.4 pango_fc_font_get_glyph () pango_fc_font_get_glyph guint pango_fc_font_get_glyph (PangoFcFont *font, gunichar wc); Gets the glyph index for a given Unicode character for font . If you only want to determine whether the font has the glyph, use pango_fc_font_has_char(). Parameters font a PangoFcFont wc Unicode character to look up Returns the glyph index, or 0, if the Unicode character doesn't exist in the font. Since: 1.4 pango_fc_font_get_unknown_glyph () pango_fc_font_get_unknown_glyphpango_fc_font_get_unknown_glyph PangoGlyph pango_fc_font_get_unknown_glyph (PangoFcFont *font, gunichar wc); pango_fc_font_get_unknown_glyph is deprecated and should not be used in newly-written code. Returns the index of a glyph suitable for drawing wc as an unknown character. Use PANGO_GET_UNKNOWN_GLYPH() instead. Parameters font a PangoFcFont wc the Unicode character for which a glyph is needed. Returns a glyph index into font . Since: 1.4 pango_fc_font_kern_glyphs () pango_fc_font_kern_glyphspango_fc_font_kern_glyphs void pango_fc_font_kern_glyphs (PangoFcFont *font, PangoGlyphString *glyphs); pango_fc_font_kern_glyphs has been deprecated since version 1.32 and should not be used in newly-written code. This function used to adjust each adjacent pair of glyphs in glyphs according to kerning information in font . Since 1.44, it does nothing. Parameters font a PangoFcFont glyphs a PangoGlyphString Since: 1.4 pango_fc_font_get_languages () pango_fc_font_get_languages PangoLanguage ** pango_fc_font_get_languages (PangoFcFont *font); Returns the languages that are supported by font . This corresponds to the FC_LANG member of the FcPattern. The returned array is only valid as long as the font and its fontmap are valid. Parameters font a PangoFcFont Returns a NULL-terminated array of PangoLanguage*. [transfer none][nullable] Since: 1.48 pango_fc_font_get_pattern () pango_fc_font_get_pattern FcPattern * pango_fc_font_get_pattern (PangoFcFont *font); Returns the FcPattern that font is based on. [skip] Parameters font a PangoFcFont Returns the fontconfig pattern for this font Since: 1.48 Types and Values struct PangoFcFont PangoFcFont struct PangoFcFont; PangoFcFont is deprecated and should not be used in newly-written code. PangoFcFont is a base class for font implementations using the Fontconfig and FreeType libraries and is used in conjunction with PangoFcFontMap. When deriving from this class, you need to implement all of its virtual functions other than shutdown() along with the get_glyph_extents() virtual function from PangoFont. PangoFcFontClass PangoFcFontClass typedef struct { FT_Face (*lock_face) (PangoFcFont *font); void (*unlock_face) (PangoFcFont *font); gboolean (*has_char) (PangoFcFont *font, gunichar wc); guint (*get_glyph) (PangoFcFont *font, gunichar wc); PangoGlyph (*get_unknown_glyph) (PangoFcFont *font, gunichar wc); void (*shutdown) (PangoFcFont *font); } PangoFcFontClass; Class structure for PangoFcFont. Members lock_face () Returns the FT_Face of the font and increases the reference count for the face by one. unlock_face () Decreases the reference count for the FT_Face of the font by one. When the count is zero, the PangoFcFont subclass is allowed to free the FT_Face. has_char () Return TRUE if the the font contains a glyph corresponding to the specified character. get_glyph () Gets the glyph that corresponds to the given Unicode character. get_unknown_glyph () Gets the glyph that should be used to display an unknown-glyph indication for the specified Unicode character. May be NULL. [nullable] shutdown () Performs any font-specific shutdown code that needs to be done when pango_fc_font_map_shutdown is called. May be NULL. [nullable] Property Details The <literal>“fontmapâ€</literal> property PangoFcFont:fontmap “fontmap†PangoFcFontMap * The PangoFc font map this font is associated with (Since: 1.26).Owner: PangoFcFont Flags: Read / Write The <literal>“patternâ€</literal> property PangoFcFont:pattern “pattern†gpointer The fontconfig pattern for this font.Owner: PangoFcFont Flags: Read / Write / Construct Only See Also PangoFcFontMap The base class for font maps; creating a new Fontconfig-based backend involves deriving from both PangoFcFontMap and PangoFcFont. docs/xml/pangofc-decoder.xml0000664000175000017500000002542514002404352016202 0ustar mclasenmclasen ]> PangoFcDecoder 3 PANGO Library PangoFcDecoder Custom font encoding handling Functions FcCharSet * pango_fc_decoder_get_charset () PangoGlyph pango_fc_decoder_get_glyph () Types and Values structPangoFcDecoder structPangoFcDecoderClass Object Hierarchy GObject ╰── PangoFcDecoder Description PangoFcDecoder represents a decoder that an application provides for handling a font that is encoded in a custom way. Functions pango_fc_decoder_get_charset () pango_fc_decoder_get_charset FcCharSet * pango_fc_decoder_get_charset (PangoFcDecoder *decoder, PangoFcFont *fcfont); Generates an FcCharSet of supported characters for the fcfont given. The returned FcCharSet will be a reference to an internal value stored by the PangoFcDecoder and must not be modified or freed. Parameters decoder a PangoFcDecoder fcfont the PangoFcFont to query. Returns the FcCharset for fcfont ; must not be modified or freed. [transfer none] Since: 1.6 pango_fc_decoder_get_glyph () pango_fc_decoder_get_glyph PangoGlyph pango_fc_decoder_get_glyph (PangoFcDecoder *decoder, PangoFcFont *fcfont, guint32 wc); Generates a PangoGlyph for the given Unicode point using the custom decoder. For complex scripts where there can be multiple glyphs for a single character, the decoder will return whatever glyph is most convenient for it. (Usually whatever glyph is directly in the fonts character map table.) Parameters decoder a PangoFcDecoder fcfont a PangoFcFont to query. wc the Unicode code point to convert to a single PangoGlyph. Returns the glyph index, or 0 if the glyph isn't covered by the font. Since: 1.6 Types and Values struct PangoFcDecoder PangoFcDecoder struct PangoFcDecoder; PangoFcDecoder is a virtual base class that implementations will inherit from. It's the interface that is used to define a custom encoding for a font. These objects are created in your code from a function callback that was originally registered with pango_fc_font_map_add_decoder_find_func(). Pango requires information about the supported charset for a font as well as the individual character to glyph conversions. Pango gets that information via the get_charset and get_glyph callbacks into your object implementation. Since: 1.6 struct PangoFcDecoderClass PangoFcDecoderClass struct PangoFcDecoderClass { FcCharSet *(*get_charset) (PangoFcDecoder *decoder, PangoFcFont *fcfont); PangoGlyph (*get_glyph) (PangoFcDecoder *decoder, PangoFcFont *fcfont, guint32 wc); }; Class structure for PangoFcDecoder. Members get_charset () This returns an FcCharset given a PangoFcFont that includes a list of supported characters in the font. The FcCharSet that is returned should be an internal reference to your code. Pango will not free this structure. It is important that you make this callback fast because this callback is called separately for each character to determine Unicode coverage. get_glyph () This returns a single PangoGlyph for a given Unicode code point. Since: 1.6 docs/xml/opentype.xml0000664000175000017500000036671614002404352015040 0ustar mclasenmclasen ]> OpenType Font Handling 3 PANGO Library OpenType Font Handling Obtaining information from OpenType tables Stability Level Unstable, unless otherwise indicated Functions #definePANGO_OT_TAG_MAKE() #definePANGO_OT_TAG_MAKE_FROM_STRING() PangoOTInfo * pango_ot_info_get () gboolean pango_ot_info_find_script () gboolean pango_ot_info_find_language () gboolean pango_ot_info_find_feature () PangoOTTag * pango_ot_info_list_scripts () PangoOTTag * pango_ot_info_list_languages () PangoOTTag * pango_ot_info_list_features () PangoOTBuffer * pango_ot_buffer_new () void pango_ot_buffer_destroy () void pango_ot_buffer_clear () void pango_ot_buffer_add_glyph () void pango_ot_buffer_set_rtl () void pango_ot_buffer_set_zero_width_marks () void pango_ot_buffer_get_glyphs () void pango_ot_buffer_output () const PangoOTRuleset * pango_ot_ruleset_get_for_description () PangoOTRuleset * pango_ot_ruleset_new () PangoOTRuleset * pango_ot_ruleset_new_for () PangoOTRuleset * pango_ot_ruleset_new_from_description () void pango_ot_ruleset_add_feature () gboolean pango_ot_ruleset_maybe_add_feature () guint pango_ot_ruleset_maybe_add_features () guint pango_ot_ruleset_get_feature_count () void pango_ot_ruleset_substitute () void pango_ot_ruleset_position () PangoOTRulesetDescription * pango_ot_ruleset_description_copy () gboolean pango_ot_ruleset_description_equal () void pango_ot_ruleset_description_free () guint pango_ot_ruleset_description_hash () PangoOTTag pango_ot_tag_from_language () PangoOTTag pango_ot_tag_from_script () PangoLanguage * pango_ot_tag_to_language () PangoScript pango_ot_tag_to_script () Types and Values typedefPangoOTTag PangoOTInfo PangoOTBuffer structPangoOTGlyph PangoOTRuleset structPangoOTRulesetDescription enumPangoOTTableType structPangoOTFeatureMap #definePANGO_OT_ALL_GLYPHS #definePANGO_OT_NO_FEATURE #definePANGO_OT_NO_SCRIPT #definePANGO_OT_DEFAULT_LANGUAGE #definePANGO_OT_TAG_DEFAULT_LANGUAGE #definePANGO_OT_TAG_DEFAULT_SCRIPT Object Hierarchy GObject ├── PangoOTInfo ╰── PangoOTRuleset Description Functions and macros in this section are used to implement the OpenType Layout features and algorithms. They have been superseded by the harfbuzz library, and should not be used anymore. Functions PANGO_OT_TAG_MAKE() PANGO_OT_TAG_MAKE #define PANGO_OT_TAG_MAKE(c1,c2,c3,c4) ((PangoOTTag) FT_MAKE_TAG (c1, c2, c3, c4)) PANGO_OT_TAG_MAKE is deprecated and should not be used in newly-written code. Creates a PangoOTTag from four characters. This is similar and compatible with the FT_MAKE_TAG() macro from FreeType. Parameters c1 First character. c2 Second character. c3 Third character. c4 Fourth character. PANGO_OT_TAG_MAKE_FROM_STRING() PANGO_OT_TAG_MAKE_FROM_STRING #define PANGO_OT_TAG_MAKE_FROM_STRING(s) PANGO_OT_TAG_MAKE_FROM_STRING is deprecated and should not be used in newly-written code. Creates a PangoOTTag from a string. The string should be at least four characters long (pad with space characters if needed), and need not be nul-terminated. This is a convenience wrapper around PANGO_OT_TAG_MAKE(), but cannot be used in certain situations, for example, as a switch expression, as it dereferences pointers. Parameters s The string representation of the tag. pango_ot_info_get () pango_ot_info_getpango_ot_info_get PangoOTInfo * pango_ot_info_get (FT_Face face); pango_ot_info_get is deprecated and should not be used in newly-written code. Returns the PangoOTInfo structure for the given FreeType font face. Parameters face a FT_Face. Returns the PangoOTInfo for face . This object will have the same lifetime as face . [transfer none] Since: 1.2 pango_ot_info_find_script () pango_ot_info_find_script gboolean pango_ot_info_find_script (PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag script_tag, guint *script_index); pango_ot_info_find_script is deprecated and should not be used in newly-written code. Finds the index of a script. If not found, tries to find the 'DFLT' and then 'dflt' scripts and return the index of that in script_index . If none of those is found either, PANGO_OT_NO_SCRIPT is placed in script_index . All other functions taking an input script_index parameter know how to handle PANGO_OT_NO_SCRIPT, so one can ignore the return value of this function completely and proceed, to enjoy the automatic fallback to the 'DFLT'/'dflt' script. Parameters info a PangoOTInfo. table_type the table type to obtain information about. script_tag the tag of the script to find. script_index location to store the index of the script, or NULL. [out][optional] Returns TRUE if the script was found. pango_ot_info_find_language () pango_ot_info_find_language gboolean pango_ot_info_find_language (PangoOTInfo *info, PangoOTTableType table_type, guint script_index, PangoOTTag language_tag, guint *language_index, guint *required_feature_index); pango_ot_info_find_language is deprecated and should not be used in newly-written code. Finds the index of a language and its required feature index. If the language is not found, sets language_index to PANGO_OT_DEFAULT_LANGUAGE and the required feature of the default language system is returned in required_feature_index. For best compatibility with some fonts, also searches the language system tag 'dflt' before falling back to the default language system, but that is transparent to the user. The user can simply ignore the return value of this function to automatically fall back to the default language system. Parameters info a PangoOTInfo. table_type the table type to obtain information about. script_index the index of the script whose languages are searched. language_tag the tag of the language to find. language_index location to store the index of the language, or NULL. [out][optional] required_feature_index location to store the required feature index of the language, or NULL. [out][optional] Returns TRUE if the language was found. pango_ot_info_find_feature () pango_ot_info_find_feature gboolean pango_ot_info_find_feature (PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag feature_tag, guint script_index, guint language_index, guint *feature_index); pango_ot_info_find_feature is deprecated and should not be used in newly-written code. Finds the index of a feature. If the feature is not found, sets feature_index to PANGO_OT_NO_FEATURE, which is safe to pass to pango_ot_ruleset_add_feature() and similar functions. In the future, this may set feature_index to an special value that if used in pango_ot_ruleset_add_feature() will ask Pango to synthesize the requested feature based on Unicode properties and data. However, this function will still return FALSE in those cases. So, users may want to ignore the return value of this function in certain cases. Parameters info a PangoOTInfo. table_type the table type to obtain information about. feature_tag the tag of the feature to find. script_index the index of the script. language_index the index of the language whose features are searched, or PANGO_OT_DEFAULT_LANGUAGE to use the default language of the script. feature_index location to store the index of the feature, or NULL. [out][optional] Returns TRUE if the feature was found. pango_ot_info_list_scripts () pango_ot_info_list_scripts PangoOTTag * pango_ot_info_list_scripts (PangoOTInfo *info, PangoOTTableType table_type); pango_ot_info_list_scripts is deprecated and should not be used in newly-written code. Obtains the list of available scripts. Parameters info a PangoOTInfo. table_type the table type to obtain information about. Returns a newly-allocated zero-terminated array containing the tags of the available scripts. Should be freed using g_free(). pango_ot_info_list_languages () pango_ot_info_list_languages PangoOTTag * pango_ot_info_list_languages (PangoOTInfo *info, PangoOTTableType table_type, guint script_index, PangoOTTag language_tag); pango_ot_info_list_languages is deprecated and should not be used in newly-written code. Obtains the list of available languages for a given script. Parameters info a PangoOTInfo. table_type the table type to obtain information about. script_index the index of the script to list languages for. language_tag unused parameter. Returns a newly-allocated zero-terminated array containing the tags of the available languages. Should be freed using g_free(). pango_ot_info_list_features () pango_ot_info_list_features PangoOTTag * pango_ot_info_list_features (PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag tag, guint script_index, guint language_index); pango_ot_info_list_features is deprecated and should not be used in newly-written code. Obtains the list of features for the given language of the given script. Parameters info a PangoOTInfo. table_type the table type to obtain information about. tag unused parameter. script_index the index of the script to obtain information about. language_index the index of the language to list features for, or PANGO_OT_DEFAULT_LANGUAGE, to list features for the default language of the script. Returns a newly-allocated zero-terminated array containing the tags of the available features. Should be freed using g_free(). pango_ot_buffer_new () pango_ot_buffer_newpango_ot_buffer_new PangoOTBuffer * pango_ot_buffer_new (PangoFcFont *font); pango_ot_buffer_new is deprecated and should not be used in newly-written code. Creates a new PangoOTBuffer for the given OpenType font. Parameters font a PangoFcFont Returns the newly allocated PangoOTBuffer, which should be freed with pango_ot_buffer_destroy(). Since: 1.4 pango_ot_buffer_destroy () pango_ot_buffer_destroypango_ot_buffer_destroy void pango_ot_buffer_destroy (PangoOTBuffer *buffer); pango_ot_buffer_destroy is deprecated and should not be used in newly-written code. Destroys a PangoOTBuffer and free all associated memory. Parameters buffer a PangoOTBuffer Since: 1.4 pango_ot_buffer_clear () pango_ot_buffer_clearpango_ot_buffer_clear void pango_ot_buffer_clear (PangoOTBuffer *buffer); pango_ot_buffer_clear is deprecated and should not be used in newly-written code. Empties a PangoOTBuffer, make it ready to add glyphs to. Parameters buffer a PangoOTBuffer Since: 1.4 pango_ot_buffer_add_glyph () pango_ot_buffer_add_glyphpango_ot_buffer_add_glyph void pango_ot_buffer_add_glyph (PangoOTBuffer *buffer, guint glyph, guint properties, guint cluster); pango_ot_buffer_add_glyph is deprecated and should not be used in newly-written code. Appends a glyph to a PangoOTBuffer, with properties identifying which features should be applied on this glyph. See pango_ot_ruleset_add_feature(). Parameters buffer a PangoOTBuffer glyph the glyph index to add, like a PangoGlyph properties the glyph properties cluster the cluster that this glyph belongs to Since: 1.4 pango_ot_buffer_set_rtl () pango_ot_buffer_set_rtlpango_ot_buffer_set_rtl void pango_ot_buffer_set_rtl (PangoOTBuffer *buffer, gboolean rtl); pango_ot_buffer_set_rtl is deprecated and should not be used in newly-written code. Sets whether glyphs will be rendered right-to-left. This setting is needed for proper horizontal positioning of right-to-left scripts. Parameters buffer a PangoOTBuffer rtl TRUE for right-to-left text Since: 1.4 pango_ot_buffer_set_zero_width_marks () pango_ot_buffer_set_zero_width_markspango_ot_buffer_set_zero_width_marks void pango_ot_buffer_set_zero_width_marks (PangoOTBuffer *buffer, gboolean zero_width_marks); pango_ot_buffer_set_zero_width_marks is deprecated and should not be used in newly-written code. Sets whether characters with a mark class should be forced to zero width. This setting is needed for proper positioning of Arabic accents, but will produce incorrect results with standard OpenType Indic fonts. Parameters buffer a PangoOTBuffer zero_width_marks TRUE if characters with a mark class should be forced to zero width. Since: 1.6 pango_ot_buffer_get_glyphs () pango_ot_buffer_get_glyphspango_ot_buffer_get_glyphs void pango_ot_buffer_get_glyphs (const PangoOTBuffer *buffer, PangoOTGlyph **glyphs, int *n_glyphs); pango_ot_buffer_get_glyphs is deprecated and should not be used in newly-written code. Gets the glyph array contained in a PangoOTBuffer. The glyphs are owned by the buffer and should not be freed, and are only valid as long as buffer is not modified. Parameters buffer a PangoOTBuffer glyphs location to store the array of glyphs, or NULL. [array length=n_glyphs][out][optional] n_glyphs location to store the number of glyphs, or NULL. [out][optional] Since: 1.4 pango_ot_buffer_output () pango_ot_buffer_outputpango_ot_buffer_output void pango_ot_buffer_output (const PangoOTBuffer *buffer, PangoGlyphString *glyphs); pango_ot_buffer_output is deprecated and should not be used in newly-written code. Exports the glyphs in a PangoOTBuffer into a PangoGlyphString. This is typically used after the OpenType layout processing is over, to convert the resulting glyphs into a generic Pango glyph string. Parameters buffer a PangoOTBuffer glyphs a PangoGlyphString Since: 1.4 pango_ot_ruleset_get_for_description () pango_ot_ruleset_get_for_descriptionpango_ot_ruleset_get_for_description const PangoOTRuleset * pango_ot_ruleset_get_for_description (PangoOTInfo *info, const PangoOTRulesetDescription *desc); pango_ot_ruleset_get_for_description is deprecated and should not be used in newly-written code. Returns a ruleset for the given OpenType info and ruleset description. Rulesets are created on demand using pango_ot_ruleset_new_from_description(). The returned ruleset should not be modified or destroyed. The static feature map members of desc should be alive as long as info is. Parameters info a PangoOTInfo. desc a PangoOTRulesetDescription. Returns the PangoOTRuleset for desc . This object will have the same lifetime as info . Since: 1.18 pango_ot_ruleset_new () pango_ot_ruleset_new PangoOTRuleset * pango_ot_ruleset_new (PangoOTInfo *info); pango_ot_ruleset_new is deprecated and should not be used in newly-written code. Creates a new PangoOTRuleset for the given OpenType info. Parameters info a PangoOTInfo. Returns the newly allocated PangoOTRuleset, which should be freed with g_object_unref(). pango_ot_ruleset_new_for () pango_ot_ruleset_new_forpango_ot_ruleset_new_for PangoOTRuleset * pango_ot_ruleset_new_for (PangoOTInfo *info, PangoScript script, PangoLanguage *language); pango_ot_ruleset_new_for is deprecated and should not be used in newly-written code. Creates a new PangoOTRuleset for the given OpenType info, script, and language. This function is part of a convenience scheme that highly simplifies using a PangoOTRuleset to represent features for a specific pair of script and language. So one can use this function passing in the script and language of interest, and later try to add features to the ruleset by just specifying the feature name or tag, without having to deal with finding script, language, or feature indices manually. In excess to what pango_ot_ruleset_new() does, this function will: Find the PangoOTTag script and language tags associated with script and language using pango_ot_tag_from_script() and pango_ot_tag_from_language(), For each of table types PANGO_OT_TABLE_GSUB and PANGO_OT_TABLE_GPOS, find the script index of the script tag found and the language system index of the language tag found in that script system, using pango_ot_info_find_script() and pango_ot_info_find_language(), For found language-systems, if they have required feature index, add that feature to the ruleset using pango_ot_ruleset_add_feature(), Remember found script and language indices for both table types, and use them in future pango_ot_ruleset_maybe_add_feature() and pango_ot_ruleset_maybe_add_features(). Because of the way return values of pango_ot_info_find_script() and pango_ot_info_find_language() are ignored, this function automatically finds and uses the 'DFLT' script and the default language-system. Parameters info a PangoOTInfo. script a PangoScript. language a PangoLanguage. Returns the newly allocated PangoOTRuleset, which should be freed with g_object_unref(). Since: 1.18 pango_ot_ruleset_new_from_description () pango_ot_ruleset_new_from_descriptionpango_ot_ruleset_new_from_description PangoOTRuleset * pango_ot_ruleset_new_from_description (PangoOTInfo *info, const PangoOTRulesetDescription *desc); pango_ot_ruleset_new_from_description is deprecated and should not be used in newly-written code. Creates a new PangoOTRuleset for the given OpenType infor and matching the given ruleset description. This is a convenience function that calls pango_ot_ruleset_new_for() and adds the static GSUB/GPOS features to the resulting ruleset, followed by adding other features to both GSUB and GPOS. The static feature map members of desc should be alive as long as info is. Parameters info a PangoOTInfo. desc a PangoOTRulesetDescription. Returns the newly allocated PangoOTRuleset, which should be freed with g_object_unref(). Since: 1.18 pango_ot_ruleset_add_feature () pango_ot_ruleset_add_feature void pango_ot_ruleset_add_feature (PangoOTRuleset *ruleset, PangoOTTableType table_type, guint feature_index, gulong property_bit); pango_ot_ruleset_add_feature is deprecated and should not be used in newly-written code. Adds a feature to the ruleset. Parameters ruleset a PangoOTRuleset. table_type the table type to add a feature to. feature_index the index of the feature to add. property_bit the property bit to use for this feature. Used to identify the glyphs that this feature should be applied to, or PANGO_OT_ALL_GLYPHS if it should be applied to all glyphs. pango_ot_ruleset_maybe_add_feature () pango_ot_ruleset_maybe_add_featurepango_ot_ruleset_maybe_add_feature gboolean pango_ot_ruleset_maybe_add_feature (PangoOTRuleset *ruleset, PangoOTTableType table_type, PangoOTTag feature_tag, gulong property_bit); pango_ot_ruleset_maybe_add_feature is deprecated and should not be used in newly-written code. This is a convenience function that first tries to find the feature using pango_ot_info_find_feature() and the ruleset script and language passed to pango_ot_ruleset_new_for(), and if the feature is found, adds it to the ruleset. If ruleset was not created using pango_ot_ruleset_new_for(), this function does nothing. Parameters ruleset a PangoOTRuleset. table_type the table type to add a feature to. feature_tag the tag of the feature to add. property_bit the property bit to use for this feature. Used to identify the glyphs that this feature should be applied to, or PANGO_OT_ALL_GLYPHS if it should be applied to all glyphs. Returns TRUE if the feature was found and added to ruleset, FALSE otherwise. Since: 1.18 pango_ot_ruleset_maybe_add_features () pango_ot_ruleset_maybe_add_featurespango_ot_ruleset_maybe_add_features guint pango_ot_ruleset_maybe_add_features (PangoOTRuleset *ruleset, PangoOTTableType table_type, const PangoOTFeatureMap *features, guint n_features); pango_ot_ruleset_maybe_add_features is deprecated and should not be used in newly-written code. This is a convenience function that for each feature in the feature map array features converts the feature name to a PangoOTTag feature tag using PANGO_OT_TAG_MAKE() and calls pango_ot_ruleset_maybe_add_feature() on it. Parameters ruleset a PangoOTRuleset. table_type the table type to add features to. features array of feature name and property bits to add. n_features number of feature records in features array. Returns The number of features in features that were found and added to ruleset . Since: 1.18 pango_ot_ruleset_get_feature_count () pango_ot_ruleset_get_feature_countpango_ot_ruleset_get_feature_count guint pango_ot_ruleset_get_feature_count (const PangoOTRuleset *ruleset, guint *n_gsub_features, guint *n_gpos_features); pango_ot_ruleset_get_feature_count is deprecated and should not be used in newly-written code. Gets the number of GSUB and GPOS features in the ruleset. Parameters ruleset a PangoOTRuleset. n_gsub_features location to store number of GSUB features, or NULL. [out][optional] n_gpos_features location to store number of GPOS features, or NULL. [out][optional] Returns Total number of features in the ruleset . Since: 1.18 pango_ot_ruleset_substitute () pango_ot_ruleset_substitutepango_ot_ruleset_substitute void pango_ot_ruleset_substitute (const PangoOTRuleset *ruleset, PangoOTBuffer *buffer); pango_ot_ruleset_substitute is deprecated and should not be used in newly-written code. Performs the OpenType GSUB substitution on buffer using the features in ruleset Parameters ruleset a PangoOTRuleset. buffer a PangoOTBuffer. Since: 1.4 pango_ot_ruleset_position () pango_ot_ruleset_positionpango_ot_ruleset_position void pango_ot_ruleset_position (const PangoOTRuleset *ruleset, PangoOTBuffer *buffer); pango_ot_ruleset_position is deprecated and should not be used in newly-written code. Performs the OpenType GPOS positioning on buffer using the features in ruleset Parameters ruleset a PangoOTRuleset. buffer a PangoOTBuffer. Since: 1.4 pango_ot_ruleset_description_copy () pango_ot_ruleset_description_copypango_ot_ruleset_description_copy PangoOTRulesetDescription * pango_ot_ruleset_description_copy (const PangoOTRulesetDescription *desc); pango_ot_ruleset_description_copy is deprecated and should not be used in newly-written code. Creates a copy of desc , which should be freed with pango_ot_ruleset_description_free(). Primarily used internally by pango_ot_ruleset_get_for_description() to cache rulesets for ruleset descriptions. Parameters desc ruleset description to copy Returns the newly allocated PangoOTRulesetDescription, which should be freed with pango_ot_ruleset_description_free(). Since: 1.18 pango_ot_ruleset_description_equal () pango_ot_ruleset_description_equalpango_ot_ruleset_description_equal gboolean pango_ot_ruleset_description_equal (const PangoOTRulesetDescription *desc1, const PangoOTRulesetDescription *desc2); pango_ot_ruleset_description_equal is deprecated and should not be used in newly-written code. Compares two ruleset descriptions for equality. Two ruleset descriptions are considered equal if the rulesets they describe are provably identical. This means that their script, language, and all feature sets should be equal. For static feature sets, the array addresses are compared directly, while for other features, the list of features is compared one by one. (Two ruleset descriptions may result in identical rulesets being created, but still compare FALSE.) Parameters desc1 a ruleset description desc2 a ruleset description Returns TRUE if two ruleset descriptions are identical, FALSE otherwise. Since: 1.18 pango_ot_ruleset_description_free () pango_ot_ruleset_description_freepango_ot_ruleset_description_free void pango_ot_ruleset_description_free (PangoOTRulesetDescription *desc); pango_ot_ruleset_description_free is deprecated and should not be used in newly-written code. Frees a ruleset description allocated by pango_ot_ruleset_description_copy(). Parameters desc an allocated PangoOTRulesetDescription Since: 1.18 pango_ot_ruleset_description_hash () pango_ot_ruleset_description_hashpango_ot_ruleset_description_hash guint pango_ot_ruleset_description_hash (const PangoOTRulesetDescription *desc); pango_ot_ruleset_description_hash is deprecated and should not be used in newly-written code. Computes a hash of a PangoOTRulesetDescription structure suitable to be used, for example, as an argument to g_hash_table_new(). Parameters desc a ruleset description Returns the hash value. Since: 1.18 pango_ot_tag_from_language () pango_ot_tag_from_languagepango_ot_tag_from_language PangoOTTag pango_ot_tag_from_language (PangoLanguage *language); pango_ot_tag_from_language is deprecated and should not be used in newly-written code. Finds the OpenType language-system tag best describing language . Parameters language A PangoLanguage, or NULL. [nullable] Returns PangoOTTag best matching language or PANGO_OT_TAG_DEFAULT_LANGUAGE if none found or if language is NULL. Since: 1.18 pango_ot_tag_from_script () pango_ot_tag_from_scriptpango_ot_tag_from_script PangoOTTag pango_ot_tag_from_script (PangoScript script); pango_ot_tag_from_script is deprecated and should not be used in newly-written code. Finds the OpenType script tag corresponding to script . The PANGO_SCRIPT_COMMON, PANGO_SCRIPT_INHERITED, and PANGO_SCRIPT_UNKNOWN scripts are mapped to the OpenType 'DFLT' script tag that is also defined as PANGO_OT_TAG_DEFAULT_SCRIPT. Note that multiple PangoScript values may map to the same OpenType script tag. In particular, PANGO_SCRIPT_HIRAGANA and PANGO_SCRIPT_KATAKANA both map to the OT tag 'kana'. Parameters script A PangoScript Returns PangoOTTag corresponding to script or PANGO_OT_TAG_DEFAULT_SCRIPT if none found. Since: 1.18 pango_ot_tag_to_language () pango_ot_tag_to_languagepango_ot_tag_to_language PangoLanguage * pango_ot_tag_to_language (PangoOTTag language_tag); pango_ot_tag_to_language is deprecated and should not be used in newly-written code. Finds a PangoLanguage corresponding to language_tag . Parameters language_tag A PangoOTTag OpenType language-system tag Returns PangoLanguage best matching language_tag or PangoLanguage corresponding to the string "xx" if none found. Since: 1.18 pango_ot_tag_to_script () pango_ot_tag_to_scriptpango_ot_tag_to_script PangoScript pango_ot_tag_to_script (PangoOTTag script_tag); pango_ot_tag_to_script is deprecated and should not be used in newly-written code. Finds the PangoScript corresponding to script_tag . The 'DFLT' script tag is mapped to PANGO_SCRIPT_COMMON. Note that an OpenType script tag may correspond to multiple PangoScript values. In such cases, the PangoScript value with the smallest value is returned. In particular, PANGO_SCRIPT_HIRAGANA and PANGO_SCRIPT_KATAKANA both map to the OT tag 'kana'. This function will return PANGO_SCRIPT_HIRAGANA for 'kana'. Parameters script_tag A PangoOTTag OpenType script tag Returns PangoScript corresponding to script_tag or PANGO_SCRIPT_UNKNOWN if none found. Since: 1.18 Types and Values PangoOTTag PangoOTTag typedef guint32 PangoOTTag; PangoOTTag is deprecated and should not be used in newly-written code. The PangoOTTag typedef is used to represent TrueType and OpenType four letter tags inside Pango. Use PANGO_OT_TAG_MAKE() or PANGO_OT_TAG_MAKE_FROM_STRING() macros to create PangoOTTags manually. PangoOTInfo PangoOTInfo typedef struct _PangoOTInfo PangoOTInfo; PangoOTInfo is deprecated and should not be used in newly-written code. The PangoOTInfo struct contains the various tables associated with an OpenType font. It contains only private fields and should only be accessed via the pango_ot_info_* functions which are documented below. To obtain a PangoOTInfo, use pango_ot_info_get(). PangoOTBuffer PangoOTBuffer typedef struct _PangoOTBuffer PangoOTBuffer; PangoOTBuffer is deprecated and should not be used in newly-written code. The PangoOTBuffer structure is used to store strings of glyphs associated with a PangoFcFont, suitable for OpenType layout processing. It contains only private fields and should only be accessed via the pango_ot_buffer_* functions which are documented below. To obtain a PangoOTBuffer, use pango_ot_buffer_new(). struct PangoOTGlyph PangoOTGlyph struct PangoOTGlyph { guint32 glyph; guint properties; guint cluster; gushort component; gushort ligID; guint internal; }; PangoOTGlyph is deprecated and should not be used in newly-written code. The PangoOTGlyph structure represents a single glyph together with information used for OpenType layout processing of the glyph. It contains the following fields. Members guint32 glyph; the glyph itself. guint properties; the properties value, identifying which features should be applied on this glyph. See pango_ot_ruleset_add_feature(). guint cluster; the cluster that this glyph belongs to. gushort component; a component value, set by the OpenType layout engine. gushort ligID; a ligature index value, set by the OpenType layout engine. guint internal; for Pango internal use PangoOTRuleset PangoOTRuleset typedef struct _PangoOTRuleset PangoOTRuleset; PangoOTRuleset is deprecated and should not be used in newly-written code. The PangoOTRuleset structure holds a set of features selected from the tables in an OpenType font. (A feature is an operation such as adjusting glyph positioning that should be applied to a text feature such as a certain type of accent.) A PangoOTRuleset is created with pango_ot_ruleset_new(), features are added to it with pango_ot_ruleset_add_feature(), then it is applied to a PangoGlyphString with pango_ot_ruleset_shape(). struct PangoOTRulesetDescription PangoOTRulesetDescriptionPangoOTRulesetDescription struct PangoOTRulesetDescription { PangoScript script; PangoLanguage *language; const PangoOTFeatureMap *static_gsub_features; guint n_static_gsub_features; const PangoOTFeatureMap *static_gpos_features; guint n_static_gpos_features; const PangoOTFeatureMap *other_features; guint n_other_features; }; PangoOTRulesetDescription is deprecated and should not be used in newly-written code. The PangoOTRuleset structure holds all the information needed to build a complete PangoOTRuleset from an OpenType font. The main use of this struct is to act as the key for a per-font hash of rulesets. The user populates a ruleset description and gets the ruleset using pango_ot_ruleset_get_for_description() or create a new one using pango_ot_ruleset_new_from_description(). Members PangoScript script; a PangoScript. PangoLanguage *language; a PangoLanguage. const PangoOTFeatureMap *static_gsub_features; static map of GSUB features, or NULL. [nullable] guint n_static_gsub_features; length of static_gsub_features , or 0. const PangoOTFeatureMap *static_gpos_features; static map of GPOS features, or NULL. [nullable] guint n_static_gpos_features; length of static_gpos_features , or 0. const PangoOTFeatureMap *other_features; map of extra features to add to both GSUB and GPOS, or NULL. Unlike the static maps, this pointer need not live beyond the life of function calls taking this struct. [nullable] guint n_other_features; length of other_features , or 0. Since: 1.18 enum PangoOTTableType PangoOTTableType PangoOTTableType is deprecated and should not be used in newly-written code. The PangoOTTableType enumeration values are used to identify the various OpenType tables in the pango_ot_info_* functions. Members PANGO_OT_TABLE_GSUB The GSUB table. PANGO_OT_TABLE_GPOS The GPOS table. struct PangoOTFeatureMap PangoOTFeatureMapPangoOTFeatureMap struct PangoOTFeatureMap { char feature_name[5]; gulong property_bit; }; PangoOTFeatureMap is deprecated and should not be used in newly-written code. The PangoOTFeatureMap typedef is used to represent an OpenType feature with the property bit associated with it. The feature tag is represented as a char array instead of a PangoOTTag for convenience. Members char feature_name[5]; feature tag in represented as four-letter ASCII string. gulong property_bit; the property bit to use for this feature. See pango_ot_ruleset_add_feature() for details. Since: 1.18 PANGO_OT_ALL_GLYPHS PANGO_OT_ALL_GLYPHSPANGO_OT_ALL_GLYPHS #define PANGO_OT_ALL_GLYPHS ((guint) 0xFFFF) PANGO_OT_ALL_GLYPHS is deprecated and should not be used in newly-written code. This is used as the property bit in pango_ot_ruleset_add_feature() when a feature should be applied to all glyphs. Since: 1.16 PANGO_OT_NO_FEATURE PANGO_OT_NO_FEATUREPANGO_OT_NO_FEATURE #define PANGO_OT_NO_FEATURE ((guint) 0xFFFF) PANGO_OT_NO_FEATURE is deprecated and should not be used in newly-written code. This is used as a feature index that represent no feature, that is, should be skipped. It may be returned as feature index by pango_ot_info_find_feature() if the feature is not found, and pango_ot_ruleset_add_feature() function automatically skips this value, so no special handling is required by the user. Since: 1.18 PANGO_OT_NO_SCRIPT PANGO_OT_NO_SCRIPTPANGO_OT_NO_SCRIPT #define PANGO_OT_NO_SCRIPT ((guint) 0xFFFF) PANGO_OT_NO_SCRIPT is deprecated and should not be used in newly-written code. This is used as a script index that represent no script, that is, when the requested script was not found, and a default ('DFLT') script was not found either. It may be returned as script index by pango_ot_info_find_script() if the script or a default script are not found, all other functions taking a script index essentially return if the input script index is this value, so no special handling is required by the user. Since: 1.18 PANGO_OT_DEFAULT_LANGUAGE PANGO_OT_DEFAULT_LANGUAGEPANGO_OT_DEFAULT_LANGUAGE #define PANGO_OT_DEFAULT_LANGUAGE ((guint) 0xFFFF) PANGO_OT_DEFAULT_LANGUAGE is deprecated and should not be used in newly-written code. This is used as the language index in pango_ot_info_find_feature() when the default language system of the script is desired. It is also returned by pango_ot_info_find_language() if the requested language is not found, or the requested language tag was PANGO_OT_TAG_DEFAULT_LANGUAGE. The end result is that one can always call pango_ot_tag_from_language() followed by pango_ot_info_find_language() and pass the result to pango_ot_info_find_feature() without having to worry about falling back to default language system explicitly. Since: 1.16 PANGO_OT_TAG_DEFAULT_LANGUAGE PANGO_OT_TAG_DEFAULT_LANGUAGEPANGO_OT_TAG_DEFAULT_LANGUAGE #define PANGO_OT_TAG_DEFAULT_LANGUAGE PANGO_OT_TAG_MAKE ('d', 'f', 'l', 't') PANGO_OT_TAG_DEFAULT_LANGUAGE is deprecated and should not be used in newly-written code. This is a PangoOTTag representing a special language tag 'dflt'. It is returned as language tag by pango_ot_tag_from_language() if the requested language is not found. It is safe to pass this value to pango_ot_info_find_language() as that function falls back to returning default language-system if the requested language tag is not found. Since: 1.18 PANGO_OT_TAG_DEFAULT_SCRIPT PANGO_OT_TAG_DEFAULT_SCRIPTPANGO_OT_TAG_DEFAULT_SCRIPT #define PANGO_OT_TAG_DEFAULT_SCRIPT PANGO_OT_TAG_MAKE ('D', 'F', 'L', 'T') PANGO_OT_TAG_DEFAULT_SCRIPT is deprecated and should not be used in newly-written code. This is a PangoOTTag representing the special script tag 'DFLT'. It is returned as script tag by pango_ot_tag_from_script() if the requested script is not found. Since: 1.18 docs/xml/utils.xml0000664000175000017500000011204014002404352014310 0ustar mclasenmclasen ]> Miscellaneous Utilities 3 PANGO Library Miscellaneous Utilities Various convenience and utility functions Functions char ** pango_split_file_list () char * pango_trim_string () gint pango_read_line () gboolean pango_skip_space () gboolean pango_scan_word () gboolean pango_scan_string () gboolean pango_scan_int () gboolean pango_parse_enum () gboolean pango_parse_style () gboolean pango_parse_variant () gboolean pango_parse_weight () gboolean pango_parse_stretch () guint8 * pango_log2vis_get_embedding_levels () gboolean pango_is_zero_width () void pango_quantize_line_geometry () Description The functions and utilities in this section are mostly used from Pango backends and modules, but may be useful for other purposes too. Functions pango_split_file_list () pango_split_file_list char ** pango_split_file_list (const char *str); pango_split_file_list has been deprecated since version 1.38 and should not be used in newly-written code. Splits a G_SEARCHPATH_SEPARATOR-separated list of files, stripping white space and substituting ~/ with $HOME/. Parameters str a G_SEARCHPATH_SEPARATOR separated list of filenames Returns a list of strings to be freed with g_strfreev(). [transfer full][array zero-terminated=1] pango_trim_string () pango_trim_string char * pango_trim_string (const char *str); pango_trim_string has been deprecated since version 1.38 and should not be used in newly-written code. Trims leading and trailing whitespace from a string. Parameters str a string Returns A newly-allocated string that must be freed with g_free() pango_read_line () pango_read_line gint pango_read_line (FILE *stream, GString *str); pango_read_line has been deprecated since version 1.38 and should not be used in newly-written code. Reads an entire line from a file into a buffer. Lines may be delimited with '\n', '\r', '\n\r', or '\r\n'. The delimiter is not written into the buffer. Text after a '#' character is treated as a comment and skipped. '\' can be used to escape a # character. '\' proceeding a line delimiter combines adjacent lines. A '\' proceeding any other character is ignored and written into the output buffer unmodified. Parameters stream a stdio stream str GString buffer into which to write the result Returns 0 if the stream was already at an EOF character, otherwise the number of lines read (this is useful for maintaining a line number counter which doesn't combine lines with '\') pango_skip_space () pango_skip_space gboolean pango_skip_space (const char **pos); pango_skip_space has been deprecated since version 1.38 and should not be used in newly-written code. Skips 0 or more characters of white space. Parameters pos in/out string position. [inout] Returns FALSE if skipping the white space leaves the position at a '\0' character. pango_scan_word () pango_scan_word gboolean pango_scan_word (const char **pos, GString *out); pango_scan_word has been deprecated since version 1.38 and should not be used in newly-written code. Scans a word into a GString buffer. A word consists of [A-Za-z_] followed by zero or more [A-Za-z_0-9] Leading white space is skipped. Parameters pos in/out string position. [inout] out a GString into which to write the result Returns FALSE if a parse error occurred. pango_scan_string () pango_scan_string gboolean pango_scan_string (const char **pos, GString *out); pango_scan_string has been deprecated since version 1.38 and should not be used in newly-written code. Scans a string into a GString buffer. The string may either be a sequence of non-white-space characters, or a quoted string with '"'. Instead a quoted string, '\"' represents a literal quote. Leading white space outside of quotes is skipped. Parameters pos in/out string position. [inout] out a GString into which to write the result Returns FALSE if a parse error occurred. pango_scan_int () pango_scan_int gboolean pango_scan_int (const char **pos, int *out); pango_scan_int has been deprecated since version 1.38 and should not be used in newly-written code. Scans an integer. Leading white space is skipped. Parameters pos in/out string position. [inout] out an int into which to write the result. [out] Returns FALSE if a parse error occurred. pango_parse_enum () pango_parse_enumpango_parse_enum gboolean pango_parse_enum (GType type, const char *str, int *value, gboolean warn, char **possible_values); pango_parse_enum has been deprecated since version 1.38 and should not be used in newly-written code. Parses an enum type and stores the result in value . If str does not match the nick name of any of the possible values for the enum and is not an integer, FALSE is returned, a warning is issued if warn is TRUE, and a string representing the list of possible values is stored in possible_values . The list is slash-separated, eg. "none/start/middle/end". If failed and possible_values is not NULL, returned string should be freed using g_free(). Parameters type enum type to parse, eg. PANGO_TYPE_ELLIPSIZE_MODE. str string to parse. May be NULL. [allow-none] value integer to store the result in, or NULL. [out][allow-none] warn if TRUE, issue a g_warning() on bad input. possible_values place to store list of possible values on failure, or NULL. [out][allow-none] Returns TRUE if str was successfully parsed. Since: 1.16 pango_parse_style () pango_parse_style gboolean pango_parse_style (const char *str, PangoStyle *style, gboolean warn); Parses a font style. The allowed values are "normal", "italic" and "oblique", case variations being ignored. Parameters str a string to parse. style a PangoStyle to store the result in. [out] warn if TRUE, issue a g_warning() on bad input. Returns TRUE if str was successfully parsed. pango_parse_variant () pango_parse_variant gboolean pango_parse_variant (const char *str, PangoVariant *variant, gboolean warn); Parses a font variant. The allowed values are "normal" and "smallcaps" or "small_caps", case variations being ignored. Parameters str a string to parse. variant a PangoVariant to store the result in. [out] warn if TRUE, issue a g_warning() on bad input. Returns TRUE if str was successfully parsed. pango_parse_weight () pango_parse_weight gboolean pango_parse_weight (const char *str, PangoWeight *weight, gboolean warn); Parses a font weight. The allowed values are "heavy", "ultrabold", "bold", "normal", "light", "ultraleight" and integers. Case variations are ignored. Parameters str a string to parse. weight a PangoWeight to store the result in. [out] warn if TRUE, issue a g_warning() on bad input. Returns TRUE if str was successfully parsed. pango_parse_stretch () pango_parse_stretch gboolean pango_parse_stretch (const char *str, PangoStretch *stretch, gboolean warn); Parses a font stretch. The allowed values are "ultra_condensed", "extra_condensed", "condensed", "semi_condensed", "normal", "semi_expanded", "expanded", "extra_expanded" and "ultra_expanded". Case variations are ignored and the '_' characters may be omitted. Parameters str a string to parse. stretch a PangoStretch to store the result in. [out] warn if TRUE, issue a g_warning() on bad input. Returns TRUE if str was successfully parsed. pango_log2vis_get_embedding_levels () pango_log2vis_get_embedding_levels guint8 * pango_log2vis_get_embedding_levels (const gchar *text, int length, PangoDirection *pbase_dir); This will return the bidirectional embedding levels of the input paragraph as defined by the Unicode Bidirectional Algorithm available at: http://www.unicode.org/reports/tr9/ If the input base direction is a weak direction, the direction of the characters in the text will determine the final resolved direction. Parameters text the text to itemize. length the number of bytes (not characters) to process, or -1 if text is nul-terminated and the length should be calculated. pbase_dir input base direction, and output resolved direction. Returns a newly allocated array of embedding levels, one item per character (not byte), that should be freed using g_free. Since: 1.4 pango_is_zero_width () pango_is_zero_width gboolean pango_is_zero_width (gunichar ch); Checks ch to see if it is a character that should not be normally rendered on the screen. This includes all Unicode characters with "ZERO WIDTH" in their name, as well as bidi formatting characters, and a few other ones. This is totally different from g_unichar_iszerowidth() and is at best misnamed. Parameters ch a Unicode character Returns TRUE if ch is a zero-width character, FALSE otherwise Since: 1.10 pango_quantize_line_geometry () pango_quantize_line_geometry void pango_quantize_line_geometry (int *thickness, int *position); Quantizes the thickness and position of a line, typically an underline or strikethrough, to whole device pixels, that is integer multiples of PANGO_SCALE. The purpose of this function is to avoid such lines looking blurry. Care is taken to make sure thickness is at least one pixel when this function returns, but returned position may become zero as a result of rounding. Parameters thickness pointer to the thickness of a line, in Pango units. [inout] position corresponding position. [inout] Since: 1.12 docs/xml/pango-version.xml0000664000175000017500000007707514002404352015761 0ustar mclasenmclasen ]> Version Checking 3 PANGO Library Version Checking Tools for checking Pango version at compile- and run-time. Functions #definePANGO_VERSION_ENCODE() #definePANGO_VERSION_CHECK() int pango_version () const char * pango_version_string () const char * pango_version_check () Types and Values #definePANGO_VERSION #definePANGO_VERSION_MAJOR #definePANGO_VERSION_MINOR #definePANGO_VERSION_MICRO #definePANGO_VERSION_STRING #definePANGO_VERSION_1_2 #definePANGO_VERSION_1_4 #definePANGO_VERSION_1_6 #definePANGO_VERSION_1_8 #definePANGO_VERSION_1_10 #definePANGO_VERSION_1_12 #definePANGO_VERSION_1_14 #definePANGO_VERSION_1_16 #definePANGO_VERSION_1_18 #definePANGO_VERSION_1_20 #definePANGO_VERSION_1_22 #definePANGO_VERSION_1_24 #definePANGO_VERSION_1_26 #definePANGO_VERSION_1_28 #definePANGO_VERSION_1_30 #definePANGO_VERSION_1_32 #definePANGO_VERSION_1_34 #definePANGO_VERSION_1_36 #definePANGO_VERSION_1_38 #definePANGO_VERSION_1_40 #definePANGO_VERSION_1_42 #definePANGO_VERSION_1_44 #definePANGO_VERSION_MIN_REQUIRED #definePANGO_VERSION_MAX_ALLOWED Description The capital-letter macros defined here can be used to check the version of Pango at compile-time, and to encode Pango versions into integers. The functions can be used to check the version of the linked Pango library at run-time. Functions PANGO_VERSION_ENCODE() PANGO_VERSION_ENCODE #define PANGO_VERSION_ENCODE(major, minor, micro) This macro encodes the given Pango version into an integer. The numbers returned by PANGO_VERSION and pango_version() are encoded using this macro. Two encoded version numbers can be compared as integers. Parameters major the major component of the version number minor the minor component of the version number micro the micro component of the version number PANGO_VERSION_CHECK() PANGO_VERSION_CHECK #define PANGO_VERSION_CHECK(major,minor,micro) Checks that the version of Pango available at compile-time is not older than the provided version number. Parameters major the major component of the version number minor the minor component of the version number micro the micro component of the version number pango_version () pango_version int pango_version (void); This is similar to the macro PANGO_VERSION except that it returns the encoded version of Pango available at run-time, as opposed to the version available at compile-time. A version number can be encoded into an integer using PANGO_VERSION_ENCODE(). Returns The encoded version of Pango library available at run time. Since: 1.16 pango_version_string () pango_version_string const char * pango_version_string (void); This is similar to the macro PANGO_VERSION_STRING except that it returns the version of Pango available at run-time, as opposed to the version available at compile-time. Returns A string containing the version of Pango library available at run time. The returned string is owned by Pango and should not be modified or freed. Since: 1.16 pango_version_check () pango_version_check const char * pango_version_check (int required_major, int required_minor, int required_micro); Checks that the Pango library in use is compatible with the given version. Generally you would pass in the constants PANGO_VERSION_MAJOR, PANGO_VERSION_MINOR, PANGO_VERSION_MICRO as the three arguments to this function; that produces a check that the library in use at run-time is compatible with the version of Pango the application or module was compiled against. Compatibility is defined by two things: first the version of the running library is newer than the version required_major.required_minor .required_micro . Second the running library must be binary compatible with the version required_major.required_minor .required_micro (same major version.) For compile-time version checking use PANGO_VERSION_CHECK(). Parameters required_major the required major version. required_minor the required minor version. required_micro the required major version. Returns NULL if the Pango library is compatible with the given version, or a string describing the version mismatch. The returned string is owned by Pango and should not be modified or freed. [nullable] Since: 1.16 Types and Values PANGO_VERSION PANGO_VERSION #define PANGO_VERSION The version of Pango available at compile-time, encoded using PANGO_VERSION_ENCODE(). PANGO_VERSION_MAJOR PANGO_VERSION_MAJOR #define PANGO_VERSION_MAJOR 1 The major component of the version of Pango available at compile-time. PANGO_VERSION_MINOR PANGO_VERSION_MINOR #define PANGO_VERSION_MINOR 48 The minor component of the version of Pango available at compile-time. PANGO_VERSION_MICRO PANGO_VERSION_MICRO #define PANGO_VERSION_MICRO 1 The micro component of the version of Pango available at compile-time. PANGO_VERSION_STRING PANGO_VERSION_STRING #define PANGO_VERSION_STRING "1.48.1" A string literal containing the version of Pango available at compile-time. PANGO_VERSION_1_2 PANGO_VERSION_1_2 #define PANGO_VERSION_1_2 (G_ENCODE_VERSION (1, 2)) A macro that evaluates to the 1.2 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_4 PANGO_VERSION_1_4 #define PANGO_VERSION_1_4 (G_ENCODE_VERSION (1, 4)) A macro that evaluates to the 1.4 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_6 PANGO_VERSION_1_6 #define PANGO_VERSION_1_6 (G_ENCODE_VERSION (1, 6)) A macro that evaluates to the 1.6 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_8 PANGO_VERSION_1_8 #define PANGO_VERSION_1_8 (G_ENCODE_VERSION (1, 8)) A macro that evaluates to the 1.8 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_10 PANGO_VERSION_1_10 #define PANGO_VERSION_1_10 (G_ENCODE_VERSION (1, 10)) A macro that evaluates to the 1.10 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_12 PANGO_VERSION_1_12 #define PANGO_VERSION_1_12 (G_ENCODE_VERSION (1, 12)) A macro that evaluates to the 1.12 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_14 PANGO_VERSION_1_14 #define PANGO_VERSION_1_14 (G_ENCODE_VERSION (1, 14)) A macro that evaluates to the 1.14 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_16 PANGO_VERSION_1_16 #define PANGO_VERSION_1_16 (G_ENCODE_VERSION (1, 16)) A macro that evaluates to the 1.16 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_18 PANGO_VERSION_1_18 #define PANGO_VERSION_1_18 (G_ENCODE_VERSION (1, 18)) A macro that evaluates to the 1.18 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_20 PANGO_VERSION_1_20 #define PANGO_VERSION_1_20 (G_ENCODE_VERSION (1, 20)) A macro that evaluates to the 1.20 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_22 PANGO_VERSION_1_22 #define PANGO_VERSION_1_22 (G_ENCODE_VERSION (1, 22)) A macro that evaluates to the 1.22 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_24 PANGO_VERSION_1_24 #define PANGO_VERSION_1_24 (G_ENCODE_VERSION (1, 24)) A macro that evaluates to the 1.24 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_26 PANGO_VERSION_1_26 #define PANGO_VERSION_1_26 (G_ENCODE_VERSION (1, 26)) A macro that evaluates to the 1.26 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_28 PANGO_VERSION_1_28 #define PANGO_VERSION_1_28 (G_ENCODE_VERSION (1, 28)) A macro that evaluates to the 1.28 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_30 PANGO_VERSION_1_30 #define PANGO_VERSION_1_30 (G_ENCODE_VERSION (1, 30)) A macro that evaluates to the 1.30 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_32 PANGO_VERSION_1_32 #define PANGO_VERSION_1_32 (G_ENCODE_VERSION (1, 32)) A macro that evaluates to the 1.32 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_34 PANGO_VERSION_1_34 #define PANGO_VERSION_1_34 (G_ENCODE_VERSION (1, 34)) A macro that evaluates to the 1.34 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_36 PANGO_VERSION_1_36 #define PANGO_VERSION_1_36 (G_ENCODE_VERSION (1, 36)) A macro that evaluates to the 1.36 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_38 PANGO_VERSION_1_38 #define PANGO_VERSION_1_38 (G_ENCODE_VERSION (1, 38)) A macro that evaluates to the 1.38 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_40 PANGO_VERSION_1_40 #define PANGO_VERSION_1_40 (G_ENCODE_VERSION (1, 40)) A macro that evaluates to the 1.40 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_42 PANGO_VERSION_1_42 #define PANGO_VERSION_1_42 (G_ENCODE_VERSION (1, 42)) A macro that evaluates to the 1.42 version of Pango, in a format that can be used by the C pre-processor. Since: 1.42 PANGO_VERSION_1_44 PANGO_VERSION_1_44 #define PANGO_VERSION_1_44 (G_ENCODE_VERSION (1, 44)) A macro that evaluates to the 1.44 version of Pango, in a format that can be used by the C pre-processor. Since: 1.44 PANGO_VERSION_MIN_REQUIRED PANGO_VERSION_MIN_REQUIRED # define PANGO_VERSION_MIN_REQUIRED (PANGO_VERSION_CUR_STABLE) A macro that should be defined by the user prior to including the pango.h header. The definition should be one of the predefined Pango version macros: PANGO_VERSION_1_2, PANGO_VERSION_1_4,... This macro defines the earliest version of Pango that the package is required to be able to compile against. If the compiler is configured to warn about the use of deprecated functions, then using functions that were deprecated in version PANGO_VERSION_MIN_REQUIRED or earlier will cause warnings (but using functions deprecated in later releases will not). Since: 1.42 PANGO_VERSION_MAX_ALLOWED PANGO_VERSION_MAX_ALLOWED # define PANGO_VERSION_MAX_ALLOWED (PANGO_VERSION_CUR_STABLE) A macro that should be defined by the user prior to including the glib.h header. The definition should be one of the predefined Pango version macros: PANGO_VERSION_1_2, PANGO_VERSION_1_4,... This macro defines the latest version of the Pango API that the package is allowed to make use of. If the compiler is configured to warn about the use of deprecated functions, then using functions added after version PANGO_VERSION_MAX_ALLOWED will cause warnings. Unless you are using PANGO_CHECK_VERSION() or the like to compile different code depending on the Pango version, then this should be set to the same value as PANGO_VERSION_MIN_REQUIRED. Since: 1.42 docs/xml/vertical.xml0000664000175000017500000006447714002404352015005 0ustar mclasenmclasen ]> Vertical Text 3 PANGO Library Vertical Text Laying text out in vertical directions Functions #definePANGO_GRAVITY_IS_IMPROPER() #definePANGO_GRAVITY_IS_VERTICAL() PangoGravity pango_gravity_get_for_matrix () PangoGravity pango_gravity_get_for_script () PangoGravity pango_gravity_get_for_script_and_width () double pango_gravity_to_rotation () Types and Values enumPangoGravity enumPangoGravityHint Object Hierarchy GEnum ├── PangoGravity ╰── PangoGravityHint Description Since 1.16, Pango is able to correctly lay vertical text out. In fact, it can set layouts of mixed vertical and non-vertical text. This section describes the types used for setting vertical text parameters. The way this is implemented is through the concept of gravity. Gravity of normal Latin text is south. A gravity value of east means that glyphs will be rotated ninety degrees counterclockwise. So, to render vertical text one needs to set the gravity and rotate the layout using the matrix machinery already in place. This has the huge advantage that most algorithms working on a PangoLayout do not need any change as the assumption that lines run in the X direction and stack in the Y direction holds even for vertical text layouts. Applications should only need to set base gravity on PangoContext in use, and let Pango decide the gravity assigned to each run of text. This automatically handles text with mixed scripts. A very common use is to set the context base gravity to auto using pango_context_set_base_gravity() and rotate the layout normally. Pango will make sure that Asian languages take the right form, while other scripts are rotated normally. The correct way to set gravity on a layout is to set it on the context associated with it using pango_context_set_base_gravity(). The context of a layout can be accessed using pango_layout_get_context(). The currently set base gravity of the context can be accessed using pango_context_get_base_gravity() and the resolved gravity of it using pango_context_get_gravity(). The resolved gravity is the same as the base gravity for the most part, except that if the base gravity is set to PANGO_GRAVITY_AUTO, the resolved gravity will depend on the current matrix set on context, and is derived using pango_gravity_get_for_matrix(). The next thing an application may want to set on the context is the gravity hint. A PangoGravityHint instructs how different scripts should react to the set base gravity. Font descriptions have a gravity property too, that can be set using pango_font_description_set_gravity() and accessed using pango_font_description_get_gravity(). However, those are rarely useful from application code and are mainly used by PangoLayout internally. Last but not least, one can create PangoAttributes for gravity and gravity hint using pango_attr_gravity_new() and pango_attr_gravity_hint_new(). Functions PANGO_GRAVITY_IS_IMPROPER() PANGO_GRAVITY_IS_IMPROPER #define PANGO_GRAVITY_IS_IMPROPER(gravity) Whether a PangoGravity represents a gravity that results in reversal of text direction. Parameters gravity the PangoGravity to check Returns TRUE if gravity is PANGO_GRAVITY_WEST or PANGO_GRAVITY_NORTH, FALSE otherwise. Since: 1.32 PANGO_GRAVITY_IS_VERTICAL() PANGO_GRAVITY_IS_VERTICAL #define PANGO_GRAVITY_IS_VERTICAL(gravity) Whether a PangoGravity represents vertical writing directions. Parameters gravity the PangoGravity to check Returns TRUE if gravity is PANGO_GRAVITY_EAST or PANGO_GRAVITY_WEST, FALSE otherwise. Since: 1.16 pango_gravity_get_for_matrix () pango_gravity_get_for_matrix PangoGravity pango_gravity_get_for_matrix (const PangoMatrix *matrix); Finds the gravity that best matches the rotation component in a PangoMatrix. Parameters matrix a PangoMatrix. [nullable] Returns the gravity of matrix , which will never be PANGO_GRAVITY_AUTO, or PANGO_GRAVITY_SOUTH if matrix is NULL Since: 1.16 pango_gravity_get_for_script () pango_gravity_get_for_script PangoGravity pango_gravity_get_for_script (PangoScript script, PangoGravity base_gravity, PangoGravityHint hint); Based on the script, base gravity, and hint, returns actual gravity to use in laying out a single PangoItem. If base_gravity is PANGO_GRAVITY_AUTO, it is first replaced with the preferred gravity of script . To get the preferred gravity of a script, pass PANGO_GRAVITY_AUTO and PANGO_GRAVITY_HINT_STRONG in. Parameters script PangoScript to query base_gravity base gravity of the paragraph hint orientation hint Returns resolved gravity suitable to use for a run of text with script . Since: 1.16 pango_gravity_get_for_script_and_width () pango_gravity_get_for_script_and_width PangoGravity pango_gravity_get_for_script_and_width (PangoScript script, gboolean wide, PangoGravity base_gravity, PangoGravityHint hint); Based on the script, East Asian width, base gravity, and hint, returns actual gravity to use in laying out a single character or PangoItem. This function is similar to pango_gravity_get_for_script() except that this function makes a distinction between narrow/half-width and wide/full-width characters also. Wide/full-width characters always stand upright, that is, they always take the base gravity, whereas narrow/full-width characters are always rotated in vertical context. If base_gravity is PANGO_GRAVITY_AUTO, it is first replaced with the preferred gravity of script . Parameters script PangoScript to query wide TRUE for wide characters as returned by g_unichar_iswide() base_gravity base gravity of the paragraph hint orientation hint Returns resolved gravity suitable to use for a run of text with script and wide . Since: 1.26 pango_gravity_to_rotation () pango_gravity_to_rotation double pango_gravity_to_rotation (PangoGravity gravity); Converts a PangoGravity value to its natural rotation in radians. gravity should not be PANGO_GRAVITY_AUTO. Note that pango_matrix_rotate() takes angle in degrees, not radians. So, to call pango_matrix_rotate() with the output of this function you should multiply it by (180. / G_PI). Parameters gravity gravity to query Returns the rotation value corresponding to gravity . Since: 1.16 Types and Values enum PangoGravity PangoGravity The PangoGravity type represents the orientation of glyphs in a segment of text. This is useful when rendering vertical text layouts. In those situations, the layout is rotated using a non-identity PangoMatrix, and then glyph orientation is controlled using PangoGravity. Not every value in this enumeration makes sense for every usage of PangoGravity; for example, PANGO_GRAVITY_AUTO only can be passed to pango_context_set_base_gravity() and can only be returned by pango_context_get_base_gravity(). See also: PangoGravityHint Members PANGO_GRAVITY_SOUTH Glyphs stand upright (default) PANGO_GRAVITY_EAST Glyphs are rotated 90 degrees clockwise PANGO_GRAVITY_NORTH Glyphs are upside-down PANGO_GRAVITY_WEST Glyphs are rotated 90 degrees counter-clockwise PANGO_GRAVITY_AUTO Gravity is resolved from the context matrix Since: 1.16 enum PangoGravityHint PangoGravityHint The PangoGravityHint defines how horizontal scripts should behave in a vertical context. That is, English excerpt in a vertical paragraph for example. See PangoGravity. Members PANGO_GRAVITY_HINT_NATURAL scripts will take their natural gravity based on the base gravity and the script. This is the default. PANGO_GRAVITY_HINT_STRONG always use the base gravity set, regardless of the script. PANGO_GRAVITY_HINT_LINE for scripts not in their natural direction (eg. Latin in East gravity), choose per-script gravity such that every script respects the line progression. This means, Latin and Arabic will take opposite gravities and both flow top-to-bottom for example. Since: 1.16 See Also pango_context_get_base_gravity(), pango_context_set_base_gravity(), pango_context_get_gravity(), pango_context_get_gravity_hint(), pango_context_set_gravity_hint(), pango_font_description_set_gravity(), pango_font_description_get_gravity(), pango_attr_gravity_new(), pango_attr_gravity_hint_new() docs/xml/bidi.xml0000664000175000017500000005540514002404352014072 0ustar mclasenmclasen ]> Bidirectional Text 3 PANGO Library Bidirectional Text Types and functions for bidirectional text Functions PangoDirection pango_unichar_direction () PangoDirection pango_find_base_dir () gboolean pango_get_mirror_char () PangoBidiType pango_bidi_type_for_unichar () Types and Values enumPangoDirection enumPangoBidiType Object Hierarchy GEnum ├── PangoBidiType ╰── PangoDirection Description Pango supports bidirectional text (like Arabic and Hebrew) automatically. Some applications however, need some help to correctly handle bidirectional text. The PangoDirection type can be used with pango_context_set_base_dir() to instruct Pango about direction of text, though in most cases Pango detects that correctly and automatically. The rest of the facilities in this section are used internally by Pango already, and are provided to help applications that need more direct control over bidirectional setting of text. Functions pango_unichar_direction () pango_unichar_direction PangoDirection pango_unichar_direction (gunichar ch); pango_unichar_direction is deprecated and should not be used in newly-written code. Determines the inherent direction of a character; either PANGO_DIRECTION_LTR, PANGO_DIRECTION_RTL, or PANGO_DIRECTION_NEUTRAL. This function is useful to categorize characters into left-to-right letters, right-to-left letters, and everything else. If full Unicode bidirectional type of a character is needed, pango_bidi_type_for_unichar() can be used instead. Parameters ch a Unicode character Returns the direction of the character. pango_find_base_dir () pango_find_base_dirpango_find_base_dir PangoDirection pango_find_base_dir (const gchar *text, gint length); pango_find_base_dir is deprecated and should not be used in newly-written code. Searches a string the first character that has a strong direction, according to the Unicode bidirectional algorithm. Parameters text the text to process. Must be valid UTF-8 length length of text in bytes (may be -1 if text is nul-terminated) Returns The direction corresponding to the first strong character. If no such character is found, then PANGO_DIRECTION_NEUTRAL is returned. Since: 1.4 pango_get_mirror_char () pango_get_mirror_char gboolean pango_get_mirror_char (gunichar ch, gunichar *mirrored_ch); pango_get_mirror_char is deprecated and should not be used in newly-written code. If ch has the Unicode mirrored property and there is another Unicode character that typically has a glyph that is the mirror image of ch 's glyph, puts that character in the address pointed to by mirrored_ch . Use g_unichar_get_mirror_char() instead; the docs for that function provide full details. Parameters ch a Unicode character mirrored_ch location to store the mirrored character Returns TRUE if ch has a mirrored character and mirrored_ch is filled in, FALSE otherwise pango_bidi_type_for_unichar () pango_bidi_type_for_unicharpango_bidi_type_for_unichar PangoBidiType pango_bidi_type_for_unichar (gunichar ch); pango_bidi_type_for_unichar is deprecated and should not be used in newly-written code. Determines the normative bidirectional character type of a character, as specified in the Unicode Character Database. A simplified version of this function is available as pango_unichar_direction(). Parameters ch a Unicode character Returns the bidirectional character type, as used in the Unicode bidirectional algorithm. Since: 1.22 Types and Values enum PangoDirection PangoDirection The PangoDirection type represents a direction in the Unicode bidirectional algorithm; not every value in this enumeration makes sense for every usage of PangoDirection; for example, the return value of pango_unichar_direction() and pango_find_base_dir() cannot be PANGO_DIRECTION_WEAK_LTR or PANGO_DIRECTION_WEAK_RTL, since every character is either neutral or has a strong direction; on the other hand PANGO_DIRECTION_NEUTRAL doesn't make sense to pass to pango_itemize_with_base_dir(). The PANGO_DIRECTION_TTB_LTR, PANGO_DIRECTION_TTB_RTL values come from an earlier interpretation of this enumeration as the writing direction of a block of text and are no longer used; See PangoGravity for how vertical text is handled in Pango. If you are interested in text direction, you should really use fribidi directly. PangoDirection is only retained because it is used in some public apis. Members PANGO_DIRECTION_LTR A strong left-to-right direction PANGO_DIRECTION_RTL A strong right-to-left direction PANGO_DIRECTION_TTB_LTR Deprecated value; treated the same as PANGO_DIRECTION_RTL. PANGO_DIRECTION_TTB_RTL Deprecated value; treated the same as PANGO_DIRECTION_LTR PANGO_DIRECTION_WEAK_LTR A weak left-to-right direction PANGO_DIRECTION_WEAK_RTL A weak right-to-left direction PANGO_DIRECTION_NEUTRAL No direction specified enum PangoBidiType PangoBidiTypePangoBidiType PangoBidiType has been deprecated since version 1.44 and should not be used in newly-written code. Use fribidi for this information The PangoBidiType type represents the bidirectional character type of a Unicode character as specified by the Unicode bidirectional algorithm. Members PANGO_BIDI_TYPE_L Left-to-Right PANGO_BIDI_TYPE_LRE Left-to-Right Embedding PANGO_BIDI_TYPE_LRO Left-to-Right Override PANGO_BIDI_TYPE_R Right-to-Left PANGO_BIDI_TYPE_AL Right-to-Left Arabic PANGO_BIDI_TYPE_RLE Right-to-Left Embedding PANGO_BIDI_TYPE_RLO Right-to-Left Override PANGO_BIDI_TYPE_PDF Pop Directional Format PANGO_BIDI_TYPE_EN European Number PANGO_BIDI_TYPE_ES European Number Separator PANGO_BIDI_TYPE_ET European Number Terminator PANGO_BIDI_TYPE_AN Arabic Number PANGO_BIDI_TYPE_CS Common Number Separator PANGO_BIDI_TYPE_NSM Nonspacing Mark PANGO_BIDI_TYPE_BN Boundary Neutral PANGO_BIDI_TYPE_B Paragraph Separator PANGO_BIDI_TYPE_S Segment Separator PANGO_BIDI_TYPE_WS Whitespace PANGO_BIDI_TYPE_ON Other Neutrals Since: 1.22 See Also pango_context_get_base_dir(), pango_context_set_base_dir(), pango_itemize_with_base_dir() docs/xml/pango-doc.top0000664000175000017500000000000014002404352015011 0ustar mclasenmclasendocs/xml/pango-doc.bottom0000664000175000017500000000231714002404352015530 0ustar mclasenmclasen docs/xml/tree_index.sgml0000664000175000017500000001630514002404352015447 0ustar mclasenmclasen ]> GObject ├── PangoFont │ ╰── PangoFcFont │ ╰── PangoXftFont ├── PangoFontMap │ ╰── PangoFcFontMap │ ├── PangoFT2FontMap │ ╰── PangoXftFontMap ├── PangoRenderer │ ╰── PangoXftRenderer ├── PangoContext ├── PangoCoverage ├── PangoEngine │ ├── PangoEngineLang │ ╰── PangoEngineShape ├── PangoFcDecoder ├── PangoFontFace ├── PangoFontFamily ├── PangoFontset ├── PangoLayout ├── PangoOTInfo ╰── PangoOTRuleset GInterface ├── PangoCairoFont ╰── PangoCairoFontMap GEnum ├── PangoAlignment ├── PangoAttrType ├── PangoBidiType ├── PangoCoverageLevel ├── PangoDirection ├── PangoEllipsizeMode ├── PangoGravity ├── PangoGravityHint ├── PangoRenderPart ├── PangoScript ├── PangoStretch ├── PangoStyle ├── PangoTabAlign ├── PangoUnderline ├── PangoVariant ├── PangoWeight ╰── PangoWrapMode GBoxed ├── PangoAttrIterator ├── PangoAttrList ├── PangoAttribute ├── PangoColor ├── PangoFontDescription ├── PangoFontMetrics ├── PangoGlyphItem ├── PangoGlyphItemIter ├── PangoGlyphString ├── PangoItem ├── PangoLanguage ├── PangoLayoutIter ├── PangoLayoutLine ├── PangoMatrix ├── PangoScriptIter ╰── PangoTabArray GFlags ├── PangoFontMask ├── PangoShapeFlags ╰── PangoShowFlags docs/xml/object_index.sgml0000664000175000017500000001157014002404352015755 0ustar mclasenmclasen ]> GBoxed GEnum GFlags GInterface GObject PangoAlignment PangoAttrIterator PangoAttrList PangoAttrType PangoAttribute PangoBidiType PangoCairoFont PangoCairoFontMap PangoColor PangoContext PangoCoverage PangoCoverageLevel PangoDirection PangoEllipsizeMode PangoEngine PangoEngineLang PangoEngineShape PangoFT2FontMap PangoFcDecoder PangoFcFont PangoFcFontMap PangoFont PangoFontDescription PangoFontFace PangoFontFamily PangoFontMap PangoFontMask PangoFontMetrics PangoFontset PangoGlyphItem PangoGlyphItemIter PangoGlyphString PangoGravity PangoGravityHint PangoItem PangoLanguage PangoLayout PangoLayoutIter PangoLayoutLine PangoMatrix PangoOTInfo PangoOTRuleset PangoRenderPart PangoRenderer PangoScript PangoScriptIter PangoShapeFlags PangoShowFlags PangoStretch PangoStyle PangoTabAlign PangoTabArray PangoUnderline PangoVariant PangoWeight PangoWrapMode PangoXftFont PangoXftFontMap PangoXftRenderer docs/xml/api-index-full.xml0000664000175000017500000051367714002404352016013 0ustar mclasenmclasen ]> A PangoAlignment, enum in Layout Objects PangoAnalysis, struct in Text Processing PANGO_ANALYSIS_FLAG_CENTERED_BASELINE, macro in Text Processing PANGO_ANALYSIS_FLAG_IS_ELLIPSIS, macro in Text Processing PANGO_ANALYSIS_FLAG_NEED_HYPHEN, macro in Text Processing PANGO_ASCENT, macro in Glyph Storage PangoAttrClass, struct in Text Attributes PangoAttrColor, struct in Text Attributes PangoAttrDataCopyFunc, user_function in Text Attributes PangoAttrFilterFunc, user_function in Text Attributes PangoAttrFloat, struct in Text Attributes PangoAttrFontDesc, struct in Text Attributes PangoAttrFontFeatures, struct in Text Attributes PangoAttribute, struct in Text Attributes pango_attribute_copy, function in Text Attributes pango_attribute_destroy, function in Text Attributes pango_attribute_equal, function in Text Attributes pango_attribute_init, function in Text Attributes PangoAttrInt, struct in Text Attributes PangoAttrIterator, struct in Text Attributes PangoAttrLanguage, struct in Text Attributes PangoAttrList, struct in Text Attributes PangoAttrShape, struct in Text Attributes PangoAttrSize, struct in Text Attributes PangoAttrString, struct in Text Attributes PangoAttrType, enum in Text Attributes pango_attr_allow_breaks_new, function in Text Attributes pango_attr_background_alpha_new, function in Text Attributes pango_attr_background_new, function in Text Attributes pango_attr_fallback_new, function in Text Attributes pango_attr_family_new, function in Text Attributes pango_attr_font_desc_new, function in Text Attributes pango_attr_font_features_new, function in Text Attributes pango_attr_foreground_alpha_new, function in Text Attributes pango_attr_foreground_new, function in Text Attributes pango_attr_gravity_hint_new, function in Text Attributes pango_attr_gravity_new, function in Text Attributes PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING, macro in Text Attributes PANGO_ATTR_INDEX_TO_TEXT_END, macro in Text Attributes pango_attr_insert_hyphens_new, function in Text Attributes pango_attr_iterator_copy, function in Text Attributes pango_attr_iterator_destroy, function in Text Attributes pango_attr_iterator_get, function in Text Attributes pango_attr_iterator_get_attrs, function in Text Attributes pango_attr_iterator_get_font, function in Text Attributes pango_attr_iterator_next, function in Text Attributes pango_attr_iterator_range, function in Text Attributes pango_attr_language_new, function in Text Attributes pango_attr_letter_spacing_new, function in Text Attributes pango_attr_list_change, function in Text Attributes pango_attr_list_copy, function in Text Attributes pango_attr_list_equal, function in Text Attributes pango_attr_list_filter, function in Text Attributes pango_attr_list_get_attributes, function in Text Attributes pango_attr_list_get_iterator, function in Text Attributes pango_attr_list_insert, function in Text Attributes pango_attr_list_insert_before, function in Text Attributes pango_attr_list_new, function in Text Attributes pango_attr_list_ref, function in Text Attributes pango_attr_list_splice, function in Text Attributes pango_attr_list_unref, function in Text Attributes pango_attr_list_update, function in Text Attributes pango_attr_overline_color_new, function in Text Attributes pango_attr_overline_new, function in Text Attributes pango_attr_rise_new, function in Text Attributes pango_attr_scale_new, function in Text Attributes pango_attr_shape_new, function in Text Attributes pango_attr_shape_new_with_data, function in Text Attributes pango_attr_show_new, function in Text Attributes pango_attr_size_new, function in Text Attributes pango_attr_size_new_absolute, function in Text Attributes pango_attr_stretch_new, function in Text Attributes pango_attr_strikethrough_color_new, function in Text Attributes pango_attr_strikethrough_new, function in Text Attributes pango_attr_style_new, function in Text Attributes pango_attr_type_get_name, function in Text Attributes pango_attr_type_register, function in Text Attributes pango_attr_underline_color_new, function in Text Attributes pango_attr_underline_new, function in Text Attributes pango_attr_variant_new, function in Text Attributes pango_attr_weight_new, function in Text Attributes B PangoBidiType, enum in Bidirectional Text pango_bidi_type_for_unichar, function in Bidirectional Text pango_break, function in Text Processing C PangoCairoFont, struct in Cairo Rendering PangoCairoFontMap, struct in Cairo Rendering PangoCairoShapeRendererFunc, user_function in Cairo Rendering pango_cairo_context_get_font_options, function in Cairo Rendering pango_cairo_context_get_resolution, function in Cairo Rendering pango_cairo_context_get_shape_renderer, function in Cairo Rendering pango_cairo_context_set_font_options, function in Cairo Rendering pango_cairo_context_set_resolution, function in Cairo Rendering pango_cairo_context_set_shape_renderer, function in Cairo Rendering pango_cairo_create_context, function in Cairo Rendering pango_cairo_create_layout, function in Cairo Rendering pango_cairo_error_underline_path, function in Cairo Rendering pango_cairo_font_get_scaled_font, function in Cairo Rendering pango_cairo_font_map_create_context, function in Cairo Rendering pango_cairo_font_map_get_default, function in Cairo Rendering pango_cairo_font_map_get_font_type, function in Cairo Rendering pango_cairo_font_map_get_resolution, function in Cairo Rendering pango_cairo_font_map_new, function in Cairo Rendering pango_cairo_font_map_new_for_font_type, function in Cairo Rendering pango_cairo_font_map_set_default, function in Cairo Rendering pango_cairo_font_map_set_resolution, function in Cairo Rendering pango_cairo_glyph_string_path, function in Cairo Rendering pango_cairo_layout_line_path, function in Cairo Rendering pango_cairo_layout_path, function in Cairo Rendering pango_cairo_show_error_underline, function in Cairo Rendering pango_cairo_show_glyph_item, function in Cairo Rendering pango_cairo_show_glyph_string, function in Cairo Rendering pango_cairo_show_layout, function in Cairo Rendering pango_cairo_show_layout_line, function in Cairo Rendering pango_cairo_update_context, function in Cairo Rendering pango_cairo_update_layout, function in Cairo Rendering PangoColor, struct in Text Attributes pango_color_copy, function in Text Attributes pango_color_free, function in Text Attributes pango_color_parse, function in Text Attributes pango_color_parse_with_alpha, function in Text Attributes pango_color_to_string, function in Text Attributes PangoContext, struct in Contexts pango_context_changed, function in Contexts pango_context_get_base_dir, function in Contexts pango_context_get_base_gravity, function in Contexts pango_context_get_font_description, function in Contexts pango_context_get_font_map, function in Contexts pango_context_get_gravity, function in Contexts pango_context_get_gravity_hint, function in Contexts pango_context_get_language, function in Contexts pango_context_get_matrix, function in Contexts pango_context_get_metrics, function in Contexts pango_context_get_round_glyph_positions, function in Contexts pango_context_get_serial, function in Contexts pango_context_list_families, function in Contexts pango_context_load_font, function in Contexts pango_context_load_fontset, function in Contexts pango_context_new, function in Contexts pango_context_set_base_dir, function in Contexts pango_context_set_base_gravity, function in Contexts pango_context_set_font_description, function in Contexts pango_context_set_font_map, function in Contexts pango_context_set_gravity_hint, function in Contexts pango_context_set_language, function in Contexts pango_context_set_matrix, function in Contexts pango_context_set_round_glyph_positions, function in Contexts pango_core_text_font_get_ctfont, function in CoreText Fonts PangoCoverage, struct in Coverage Maps PangoCoverageLevel, enum in Coverage Maps pango_coverage_copy, function in Coverage Maps pango_coverage_from_bytes, function in Coverage Maps pango_coverage_get, function in Coverage Maps pango_coverage_max, function in Coverage Maps pango_coverage_new, function in Coverage Maps pango_coverage_ref, function in Coverage Maps pango_coverage_set, function in Coverage Maps pango_coverage_to_bytes, function in Coverage Maps pango_coverage_unref, function in Coverage Maps D pango_default_break, function in Text Processing PANGO_DESCENT, macro in Glyph Storage PangoDirection, enum in Bidirectional Text E PangoEllipsizeMode, enum in Layout Objects PangoEngine, struct in Engines PangoEngineClass, struct in Engines PangoEngineInfo, struct in Engines PangoEngineLang, struct in PangoEngineLang PangoEngineLangClass, struct in PangoEngineLang PangoEngineScriptInfo, struct in Engines PangoEngineShape, struct in PangoEngineShape PangoEngineShapeClass, struct in PangoEngineShape PANGO_ENGINE_LANG_DEFINE_TYPE, macro in PangoEngineLang PANGO_ENGINE_SHAPE_DEFINE_TYPE, macro in PangoEngineShape PANGO_ENGINE_TYPE_LANG, macro in PangoEngineLang PANGO_ENGINE_TYPE_SHAPE, macro in PangoEngineShape pango_extents_to_pixels, function in Glyph Storage F PangoFcDecoder, struct in PangoFcDecoder PangoFcDecoderClass, struct in PangoFcDecoder PangoFcDecoderFindFunc, user_function in PangoFcFontMap PangoFcFont, struct in PangoFcFont PangoFcFont:fontmap, object property in PangoFcFont PangoFcFont:pattern, object property in PangoFcFont PangoFcFontClass, struct in PangoFcFont PangoFcFontMap, struct in PangoFcFontMap PangoFcFontMapClass, struct in PangoFcFontMap PangoFcSubstituteFunc, user_function in PangoFcFontMap pango_fc_decoder_get_charset, function in PangoFcDecoder pango_fc_decoder_get_glyph, function in PangoFcDecoder pango_fc_font_description_from_pattern, function in PangoFcFontMap PANGO_FC_FONT_FEATURES, macro in PangoFcFontMap pango_fc_font_get_glyph, function in PangoFcFont pango_fc_font_get_languages, function in PangoFcFont pango_fc_font_get_pattern, function in PangoFcFont pango_fc_font_get_unknown_glyph, function in PangoFcFont pango_fc_font_has_char, function in PangoFcFont pango_fc_font_kern_glyphs, function in PangoFcFont pango_fc_font_lock_face, function in PangoFcFont pango_fc_font_map_add_decoder_find_func, function in PangoFcFontMap pango_fc_font_map_cache_clear, function in PangoFcFontMap pango_fc_font_map_config_changed, function in PangoFcFontMap pango_fc_font_map_create_context, function in PangoFcFontMap pango_fc_font_map_find_decoder, function in PangoFcFontMap pango_fc_font_map_get_config, function in PangoFcFontMap pango_fc_font_map_set_config, function in PangoFcFontMap pango_fc_font_map_set_default_substitute, function in PangoFcFontMap pango_fc_font_map_shutdown, function in PangoFcFontMap pango_fc_font_map_substitute_changed, function in PangoFcFontMap pango_fc_font_unlock_face, function in PangoFcFont PANGO_FC_FONT_VARIATIONS, macro in PangoFcFontMap PANGO_FC_GRAVITY, macro in PangoFcFontMap PANGO_FC_PRGNAME, macro in PangoFcFontMap PANGO_FC_VERSION, macro in PangoFcFontMap pango_find_base_dir, function in Bidirectional Text pango_find_map, function in Modules pango_find_paragraph_boundary, function in Text Processing PangoFont, struct in Fonts PangoFontDescription, struct in Fonts PangoFontFace, struct in Fonts PangoFontFamily, struct in Fonts PangoFontMap, struct in Fonts PangoFontMapClass, struct in Fonts PangoFontMask, enum in Fonts PangoFontMetrics, struct in Fonts PangoFontset, struct in Fonts PangoFontsetClass, struct in Fonts PangoFontsetForeachFunc, user_function in Fonts pango_fontset_foreach, function in Fonts pango_fontset_get_font, function in Fonts pango_fontset_get_metrics, function in Fonts pango_font_describe, function in Fonts pango_font_describe_with_absolute_size, function in Fonts pango_font_descriptions_free, function in Fonts pango_font_description_better_match, function in Fonts pango_font_description_copy, function in Fonts pango_font_description_copy_static, function in Fonts pango_font_description_equal, function in Fonts pango_font_description_free, function in Fonts pango_font_description_from_string, function in Fonts pango_font_description_get_family, function in Fonts pango_font_description_get_gravity, function in Fonts pango_font_description_get_set_fields, function in Fonts pango_font_description_get_size, function in Fonts pango_font_description_get_size_is_absolute, function in Fonts pango_font_description_get_stretch, function in Fonts pango_font_description_get_style, function in Fonts pango_font_description_get_variant, function in Fonts pango_font_description_get_variations, function in Fonts pango_font_description_get_weight, function in Fonts pango_font_description_hash, function in Fonts pango_font_description_merge, function in Fonts pango_font_description_merge_static, function in Fonts pango_font_description_new, function in Fonts pango_font_description_set_absolute_size, function in Fonts pango_font_description_set_family, function in Fonts pango_font_description_set_family_static, function in Fonts pango_font_description_set_gravity, function in Fonts pango_font_description_set_size, function in Fonts pango_font_description_set_stretch, function in Fonts pango_font_description_set_style, function in Fonts pango_font_description_set_variant, function in Fonts pango_font_description_set_variations, function in Fonts pango_font_description_set_variations_static, function in Fonts pango_font_description_set_weight, function in Fonts pango_font_description_to_filename, function in Fonts pango_font_description_to_string, function in Fonts pango_font_description_unset_fields, function in Fonts pango_font_face_describe, function in Fonts pango_font_face_get_face_name, function in Fonts pango_font_face_get_family, function in Fonts pango_font_face_is_synthesized, function in Fonts pango_font_face_list_sizes, function in Fonts pango_font_family_get_face, function in Fonts pango_font_family_get_name, function in Fonts pango_font_family_is_monospace, function in Fonts pango_font_family_is_variable, function in Fonts pango_font_family_list_faces, function in Fonts pango_font_find_shaper, function in Fonts pango_font_get_coverage, function in Fonts pango_font_get_face, function in Fonts pango_font_get_features, function in Fonts pango_font_get_font_map, function in Fonts pango_font_get_glyph_extents, function in Fonts pango_font_get_hb_font, function in Fonts pango_font_get_metrics, function in Fonts pango_font_has_char, function in Fonts pango_font_map_changed, function in Fonts pango_font_map_create_context, function in Fonts pango_font_map_get_family, function in Fonts pango_font_map_get_serial, function in Fonts pango_font_map_list_families, function in Fonts pango_font_map_load_font, function in Fonts pango_font_map_load_fontset, function in Fonts pango_font_metrics_get_approximate_char_width, function in Fonts pango_font_metrics_get_approximate_digit_width, function in Fonts pango_font_metrics_get_ascent, function in Fonts pango_font_metrics_get_descent, function in Fonts pango_font_metrics_get_height, function in Fonts pango_font_metrics_get_strikethrough_position, function in Fonts pango_font_metrics_get_strikethrough_thickness, function in Fonts pango_font_metrics_get_underline_position, function in Fonts pango_font_metrics_get_underline_thickness, function in Fonts pango_font_metrics_ref, function in Fonts pango_font_metrics_unref, function in Fonts PangoFT2FontMap, struct in FreeType Fonts and Rendering PangoFT2SubstituteFunc, user_function in FreeType Fonts and Rendering pango_ft2_font_get_coverage, function in FreeType Fonts and Rendering pango_ft2_font_get_face, function in FreeType Fonts and Rendering pango_ft2_font_get_kerning, function in FreeType Fonts and Rendering pango_ft2_font_map_create_context, function in FreeType Fonts and Rendering pango_ft2_font_map_for_display, function in FreeType Fonts and Rendering pango_ft2_font_map_new, function in FreeType Fonts and Rendering pango_ft2_font_map_set_default_substitute, function in FreeType Fonts and Rendering pango_ft2_font_map_set_resolution, function in FreeType Fonts and Rendering pango_ft2_font_map_substitute_changed, function in FreeType Fonts and Rendering pango_ft2_get_context, function in FreeType Fonts and Rendering pango_ft2_get_unknown_glyph, function in FreeType Fonts and Rendering pango_ft2_render, function in FreeType Fonts and Rendering pango_ft2_render_layout, function in FreeType Fonts and Rendering pango_ft2_render_layout_line, function in FreeType Fonts and Rendering pango_ft2_render_layout_line_subpixel, function in FreeType Fonts and Rendering pango_ft2_render_layout_subpixel, function in FreeType Fonts and Rendering pango_ft2_render_transformed, function in FreeType Fonts and Rendering pango_ft2_shutdown_display, function in FreeType Fonts and Rendering G pango_get_log_attrs, function in Text Processing pango_get_mirror_char, function in Bidirectional Text PANGO_GET_UNKNOWN_GLYPH, macro in Glyph Storage PangoGlyph, typedef in Glyph Storage PangoGlyphGeometry, struct in Glyph Storage PangoGlyphInfo, struct in Glyph Storage PangoGlyphItem, struct in Glyph Storage PangoGlyphItemIter, struct in Glyph Storage PangoGlyphString, struct in Glyph Storage PangoGlyphUnit, typedef in Glyph Storage PangoGlyphVisAttr, struct in Glyph Storage PANGO_GLYPH_EMPTY, macro in Glyph Storage PANGO_GLYPH_INVALID_INPUT, macro in Glyph Storage pango_glyph_item_apply_attrs, function in Glyph Storage pango_glyph_item_copy, function in Glyph Storage pango_glyph_item_free, function in Glyph Storage pango_glyph_item_get_logical_widths, function in Glyph Storage pango_glyph_item_iter_copy, function in Glyph Storage pango_glyph_item_iter_free, function in Glyph Storage pango_glyph_item_iter_init_end, function in Glyph Storage pango_glyph_item_iter_init_start, function in Glyph Storage pango_glyph_item_iter_next_cluster, function in Glyph Storage pango_glyph_item_iter_prev_cluster, function in Glyph Storage pango_glyph_item_letter_space, function in Glyph Storage pango_glyph_item_split, function in Glyph Storage pango_glyph_string_copy, function in Glyph Storage pango_glyph_string_extents, function in Glyph Storage pango_glyph_string_extents_range, function in Glyph Storage pango_glyph_string_free, function in Glyph Storage pango_glyph_string_get_logical_widths, function in Glyph Storage pango_glyph_string_get_width, function in Glyph Storage pango_glyph_string_index_to_x, function in Glyph Storage pango_glyph_string_new, function in Glyph Storage pango_glyph_string_set_size, function in Glyph Storage pango_glyph_string_x_to_index, function in Glyph Storage PANGO_GLYPH_UNKNOWN_FLAG, macro in Glyph Storage PangoGravity, enum in Vertical Text PangoGravityHint, enum in Vertical Text pango_gravity_get_for_matrix, function in Vertical Text pango_gravity_get_for_script, function in Vertical Text pango_gravity_get_for_script_and_width, function in Vertical Text PANGO_GRAVITY_IS_IMPROPER, macro in Vertical Text PANGO_GRAVITY_IS_VERTICAL, macro in Vertical Text pango_gravity_to_rotation, function in Vertical Text I PangoIncludedModule, struct in Modules pango_is_zero_width, function in Miscellaneous Utilities PangoItem, struct in Text Processing pango_itemize, function in Text Processing pango_itemize_with_base_dir, function in Text Processing pango_item_apply_attrs, function in Text Processing pango_item_copy, function in Text Processing pango_item_free, function in Text Processing pango_item_new, function in Text Processing pango_item_split, function in Text Processing L PangoLanguage, struct in Scripts and Languages pango_language_from_string, function in Scripts and Languages pango_language_get_default, function in Scripts and Languages pango_language_get_preferred, function in Scripts and Languages pango_language_get_sample_string, function in Scripts and Languages pango_language_get_scripts, function in Scripts and Languages pango_language_includes_script, function in Scripts and Languages pango_language_matches, function in Scripts and Languages pango_language_to_string, function in Scripts and Languages PangoLayout, struct in Layout Objects PangoLayoutIter, struct in Layout Objects PangoLayoutLine, struct in Layout Objects PangoLayoutRun, typedef in Layout Objects pango_layout_context_changed, function in Layout Objects pango_layout_copy, function in Layout Objects pango_layout_get_alignment, function in Layout Objects pango_layout_get_attributes, function in Layout Objects pango_layout_get_auto_dir, function in Layout Objects pango_layout_get_baseline, function in Layout Objects pango_layout_get_character_count, function in Layout Objects pango_layout_get_context, function in Layout Objects pango_layout_get_cursor_pos, function in Layout Objects pango_layout_get_direction, function in Layout Objects pango_layout_get_ellipsize, function in Layout Objects pango_layout_get_extents, function in Layout Objects pango_layout_get_font_description, function in Layout Objects pango_layout_get_height, function in Layout Objects pango_layout_get_indent, function in Layout Objects pango_layout_get_iter, function in Layout Objects pango_layout_get_justify, function in Layout Objects pango_layout_get_line, function in Layout Objects pango_layout_get_lines, function in Layout Objects pango_layout_get_lines_readonly, function in Layout Objects pango_layout_get_line_count, function in Layout Objects pango_layout_get_line_readonly, function in Layout Objects pango_layout_get_line_spacing, function in Layout Objects pango_layout_get_log_attrs, function in Layout Objects pango_layout_get_log_attrs_readonly, function in Layout Objects pango_layout_get_pixel_extents, function in Layout Objects pango_layout_get_pixel_size, function in Layout Objects pango_layout_get_serial, function in Layout Objects pango_layout_get_single_paragraph_mode, function in Layout Objects pango_layout_get_size, function in Layout Objects pango_layout_get_spacing, function in Layout Objects pango_layout_get_tabs, function in Layout Objects pango_layout_get_text, function in Layout Objects pango_layout_get_unknown_glyphs_count, function in Layout Objects pango_layout_get_width, function in Layout Objects pango_layout_get_wrap, function in Layout Objects pango_layout_index_to_line_x, function in Layout Objects pango_layout_index_to_pos, function in Layout Objects pango_layout_is_ellipsized, function in Layout Objects pango_layout_is_wrapped, function in Layout Objects pango_layout_iter_at_last_line, function in Layout Objects pango_layout_iter_copy, function in Layout Objects pango_layout_iter_free, function in Layout Objects pango_layout_iter_get_baseline, function in Layout Objects pango_layout_iter_get_char_extents, function in Layout Objects pango_layout_iter_get_cluster_extents, function in Layout Objects pango_layout_iter_get_index, function in Layout Objects pango_layout_iter_get_layout, function in Layout Objects pango_layout_iter_get_layout_extents, function in Layout Objects pango_layout_iter_get_line, function in Layout Objects pango_layout_iter_get_line_extents, function in Layout Objects pango_layout_iter_get_line_readonly, function in Layout Objects pango_layout_iter_get_line_yrange, function in Layout Objects pango_layout_iter_get_run, function in Layout Objects pango_layout_iter_get_run_extents, function in Layout Objects pango_layout_iter_get_run_readonly, function in Layout Objects pango_layout_iter_next_char, function in Layout Objects pango_layout_iter_next_cluster, function in Layout Objects pango_layout_iter_next_line, function in Layout Objects pango_layout_iter_next_run, function in Layout Objects pango_layout_line_get_extents, function in Layout Objects pango_layout_line_get_height, function in Layout Objects pango_layout_line_get_pixel_extents, function in Layout Objects pango_layout_line_get_x_ranges, function in Layout Objects pango_layout_line_index_to_x, function in Layout Objects pango_layout_line_ref, function in Layout Objects pango_layout_line_unref, function in Layout Objects pango_layout_line_x_to_index, function in Layout Objects pango_layout_move_cursor_visually, function in Layout Objects pango_layout_new, function in Layout Objects pango_layout_set_alignment, function in Layout Objects pango_layout_set_attributes, function in Layout Objects pango_layout_set_auto_dir, function in Layout Objects pango_layout_set_ellipsize, function in Layout Objects pango_layout_set_font_description, function in Layout Objects pango_layout_set_height, function in Layout Objects pango_layout_set_indent, function in Layout Objects pango_layout_set_justify, function in Layout Objects pango_layout_set_line_spacing, function in Layout Objects pango_layout_set_markup, function in Layout Objects pango_layout_set_markup_with_accel, function in Layout Objects pango_layout_set_single_paragraph_mode, function in Layout Objects pango_layout_set_spacing, function in Layout Objects pango_layout_set_tabs, function in Layout Objects pango_layout_set_text, function in Layout Objects pango_layout_set_width, function in Layout Objects pango_layout_set_wrap, function in Layout Objects pango_layout_xy_to_index, function in Layout Objects PANGO_LBEARING, macro in Glyph Storage pango_log2vis_get_embedding_levels, function in Miscellaneous Utilities PangoLogAttr, struct in Text Processing M PangoMap, struct in Modules PangoMapEntry, struct in Modules pango_map_get_engine, function in Modules pango_map_get_engines, function in Modules pango_markup_parser_finish, function in Markup pango_markup_parser_new, function in Markup PangoMatrix, struct in Glyph Storage pango_matrix_concat, function in Glyph Storage pango_matrix_copy, function in Glyph Storage pango_matrix_free, function in Glyph Storage pango_matrix_get_font_scale_factor, function in Glyph Storage pango_matrix_get_font_scale_factors, function in Glyph Storage PANGO_MATRIX_INIT, macro in Glyph Storage pango_matrix_rotate, function in Glyph Storage pango_matrix_scale, function in Glyph Storage pango_matrix_transform_distance, function in Glyph Storage pango_matrix_transform_pixel_rectangle, function in Glyph Storage pango_matrix_transform_point, function in Glyph Storage pango_matrix_transform_rectangle, function in Glyph Storage pango_matrix_translate, function in Glyph Storage pango_module_register, function in Modules O PangoOTBuffer, struct in OpenType Font Handling PangoOTFeatureMap, struct in OpenType Font Handling PangoOTGlyph, struct in OpenType Font Handling PangoOTInfo, struct in OpenType Font Handling PangoOTRuleset, struct in OpenType Font Handling PangoOTRulesetDescription, struct in OpenType Font Handling PangoOTTableType, enum in OpenType Font Handling PangoOTTag, typedef in OpenType Font Handling PANGO_OT_ALL_GLYPHS, macro in OpenType Font Handling pango_ot_buffer_add_glyph, function in OpenType Font Handling pango_ot_buffer_clear, function in OpenType Font Handling pango_ot_buffer_destroy, function in OpenType Font Handling pango_ot_buffer_get_glyphs, function in OpenType Font Handling pango_ot_buffer_new, function in OpenType Font Handling pango_ot_buffer_output, function in OpenType Font Handling pango_ot_buffer_set_rtl, function in OpenType Font Handling pango_ot_buffer_set_zero_width_marks, function in OpenType Font Handling PANGO_OT_DEFAULT_LANGUAGE, macro in OpenType Font Handling pango_ot_info_find_feature, function in OpenType Font Handling pango_ot_info_find_language, function in OpenType Font Handling pango_ot_info_find_script, function in OpenType Font Handling pango_ot_info_get, function in OpenType Font Handling pango_ot_info_list_features, function in OpenType Font Handling pango_ot_info_list_languages, function in OpenType Font Handling pango_ot_info_list_scripts, function in OpenType Font Handling PANGO_OT_NO_FEATURE, macro in OpenType Font Handling PANGO_OT_NO_SCRIPT, macro in OpenType Font Handling pango_ot_ruleset_add_feature, function in OpenType Font Handling pango_ot_ruleset_description_copy, function in OpenType Font Handling pango_ot_ruleset_description_equal, function in OpenType Font Handling pango_ot_ruleset_description_free, function in OpenType Font Handling pango_ot_ruleset_description_hash, function in OpenType Font Handling pango_ot_ruleset_get_feature_count, function in OpenType Font Handling pango_ot_ruleset_get_for_description, function in OpenType Font Handling pango_ot_ruleset_maybe_add_feature, function in OpenType Font Handling pango_ot_ruleset_maybe_add_features, function in OpenType Font Handling pango_ot_ruleset_new, function in OpenType Font Handling pango_ot_ruleset_new_for, function in OpenType Font Handling pango_ot_ruleset_new_from_description, function in OpenType Font Handling pango_ot_ruleset_position, function in OpenType Font Handling pango_ot_ruleset_substitute, function in OpenType Font Handling PANGO_OT_TAG_DEFAULT_LANGUAGE, macro in OpenType Font Handling PANGO_OT_TAG_DEFAULT_SCRIPT, macro in OpenType Font Handling pango_ot_tag_from_language, function in OpenType Font Handling pango_ot_tag_from_script, function in OpenType Font Handling PANGO_OT_TAG_MAKE, macro in OpenType Font Handling PANGO_OT_TAG_MAKE_FROM_STRING, macro in OpenType Font Handling pango_ot_tag_to_language, function in OpenType Font Handling pango_ot_tag_to_script, function in OpenType Font Handling PangoOverline, enum in Text Attributes P pango_parse_enum, function in Miscellaneous Utilities pango_parse_markup, function in Markup pango_parse_stretch, function in Miscellaneous Utilities pango_parse_style, function in Miscellaneous Utilities pango_parse_variant, function in Miscellaneous Utilities pango_parse_weight, function in Miscellaneous Utilities PANGO_PIXELS, macro in Glyph Storage PANGO_PIXELS_CEIL, macro in Glyph Storage PANGO_PIXELS_FLOOR, macro in Glyph Storage Q pango_quantize_line_geometry, function in Miscellaneous Utilities R PANGO_RBEARING, macro in Glyph Storage pango_read_line, function in Miscellaneous Utilities PangoRectangle, struct in Glyph Storage PangoRenderer, struct in PangoRenderer PangoRendererClass, struct in PangoRenderer pango_renderer_activate, function in PangoRenderer pango_renderer_deactivate, function in PangoRenderer pango_renderer_draw_error_underline, function in PangoRenderer pango_renderer_draw_glyph, function in PangoRenderer pango_renderer_draw_glyphs, function in PangoRenderer pango_renderer_draw_glyph_item, function in PangoRenderer pango_renderer_draw_layout, function in PangoRenderer pango_renderer_draw_layout_line, function in PangoRenderer pango_renderer_draw_rectangle, function in PangoRenderer pango_renderer_draw_trapezoid, function in PangoRenderer pango_renderer_get_alpha, function in PangoRenderer pango_renderer_get_color, function in PangoRenderer pango_renderer_get_layout, function in PangoRenderer pango_renderer_get_layout_line, function in PangoRenderer pango_renderer_get_matrix, function in PangoRenderer pango_renderer_part_changed, function in PangoRenderer pango_renderer_set_alpha, function in PangoRenderer pango_renderer_set_color, function in PangoRenderer pango_renderer_set_matrix, function in PangoRenderer PangoRenderPart, enum in PangoRenderer pango_reorder_items, function in Text Processing S PANGO_SCALE, macro in Glyph Storage PANGO_SCALE_LARGE, macro in Text Attributes PANGO_SCALE_MEDIUM, macro in Text Attributes PANGO_SCALE_SMALL, macro in Text Attributes PANGO_SCALE_XX_LARGE, macro in Text Attributes PANGO_SCALE_XX_SMALL, macro in Text Attributes PANGO_SCALE_X_LARGE, macro in Text Attributes PANGO_SCALE_X_SMALL, macro in Text Attributes pango_scan_int, function in Miscellaneous Utilities pango_scan_string, function in Miscellaneous Utilities pango_scan_word, function in Miscellaneous Utilities PangoScript, enum in Scripts and Languages PangoScriptIter, struct in Scripts and Languages script_engine_create, function in Engines script_engine_exit, function in Engines script_engine_init, function in Engines script_engine_list, function in Engines pango_script_for_unichar, function in Scripts and Languages pango_script_get_sample_language, function in Scripts and Languages pango_script_iter_free, function in Scripts and Languages pango_script_iter_get_range, function in Scripts and Languages pango_script_iter_new, function in Scripts and Languages pango_script_iter_next, function in Scripts and Languages pango_shape, function in Text Processing PangoShapeFlags, enum in Text Processing pango_shape_full, function in Text Processing pango_shape_with_flags, function in Text Processing PangoShowFlags, enum in Text Attributes pango_skip_space, function in Miscellaneous Utilities pango_split_file_list, function in Miscellaneous Utilities PangoStretch, enum in Fonts PangoStyle, enum in Fonts T PangoTabAlign, enum in Tab Stops PangoTabArray, struct in Tab Stops pango_tab_array_copy, function in Tab Stops pango_tab_array_free, function in Tab Stops pango_tab_array_get_positions_in_pixels, function in Tab Stops pango_tab_array_get_size, function in Tab Stops pango_tab_array_get_tab, function in Tab Stops pango_tab_array_get_tabs, function in Tab Stops pango_tab_array_new, function in Tab Stops pango_tab_array_new_with_positions, function in Tab Stops pango_tab_array_resize, function in Tab Stops pango_tab_array_set_tab, function in Tab Stops pango_tailor_break, function in Text Processing pango_trim_string, function in Miscellaneous Utilities PANGO_TYPE_COVERAGE_LEVEL, macro in Coverage Maps PANGO_TYPE_GLYPH_STRING, macro in Glyph Storage PANGO_TYPE_RENDER_PART, macro in PangoRenderer U PangoUnderline, enum in Text Attributes pango_unichar_direction, function in Bidirectional Text pango_units_from_double, function in Glyph Storage PANGO_UNITS_ROUND, macro in Glyph Storage pango_units_to_double, function in Glyph Storage V PangoVariant, enum in Fonts PANGO_VERSION, macro in Version Checking pango_version, function in Version Checking PANGO_VERSION_1_10, macro in Version Checking PANGO_VERSION_1_12, macro in Version Checking PANGO_VERSION_1_14, macro in Version Checking PANGO_VERSION_1_16, macro in Version Checking PANGO_VERSION_1_18, macro in Version Checking PANGO_VERSION_1_2, macro in Version Checking PANGO_VERSION_1_20, macro in Version Checking PANGO_VERSION_1_22, macro in Version Checking PANGO_VERSION_1_24, macro in Version Checking PANGO_VERSION_1_26, macro in Version Checking PANGO_VERSION_1_28, macro in Version Checking PANGO_VERSION_1_30, macro in Version Checking PANGO_VERSION_1_32, macro in Version Checking PANGO_VERSION_1_34, macro in Version Checking PANGO_VERSION_1_36, macro in Version Checking PANGO_VERSION_1_38, macro in Version Checking PANGO_VERSION_1_4, macro in Version Checking PANGO_VERSION_1_40, macro in Version Checking PANGO_VERSION_1_42, macro in Version Checking PANGO_VERSION_1_44, macro in Version Checking PANGO_VERSION_1_6, macro in Version Checking PANGO_VERSION_1_8, macro in Version Checking PANGO_VERSION_CHECK, macro in Version Checking pango_version_check, function in Version Checking PANGO_VERSION_ENCODE, macro in Version Checking PANGO_VERSION_MAJOR, macro in Version Checking PANGO_VERSION_MAX_ALLOWED, macro in Version Checking PANGO_VERSION_MICRO, macro in Version Checking PANGO_VERSION_MINOR, macro in Version Checking PANGO_VERSION_MIN_REQUIRED, macro in Version Checking PANGO_VERSION_STRING, macro in Version Checking pango_version_string, function in Version Checking W PangoWeight, enum in Fonts PangoWin32FontCache, struct in Win32 Fonts and Rendering pango_win32_font_cache_free, function in Win32 Fonts and Rendering pango_win32_font_cache_load, function in Win32 Fonts and Rendering pango_win32_font_cache_loadw, function in Win32 Fonts and Rendering pango_win32_font_cache_new, function in Win32 Fonts and Rendering pango_win32_font_cache_unload, function in Win32 Fonts and Rendering pango_win32_font_description_from_logfont, function in Win32 Fonts and Rendering pango_win32_font_description_from_logfontw, function in Win32 Fonts and Rendering pango_win32_font_done_font, function in Win32 Fonts and Rendering pango_win32_font_get_glyph_index, function in Win32 Fonts and Rendering pango_win32_font_get_metrics_factor, function in Win32 Fonts and Rendering pango_win32_font_logfont, function in Win32 Fonts and Rendering pango_win32_font_logfontw, function in Win32 Fonts and Rendering pango_win32_font_map_for_display, function in Win32 Fonts and Rendering pango_win32_font_map_get_font_cache, function in Win32 Fonts and Rendering pango_win32_font_select_font, function in Win32 Fonts and Rendering pango_win32_get_context, function in Win32 Fonts and Rendering pango_win32_get_dc, function in Win32 Fonts and Rendering pango_win32_get_debug_flag, function in Win32 Fonts and Rendering pango_win32_get_unknown_glyph, function in Win32 Fonts and Rendering pango_win32_render, function in Win32 Fonts and Rendering pango_win32_render_layout, function in Win32 Fonts and Rendering pango_win32_render_layout_line, function in Win32 Fonts and Rendering pango_win32_render_transformed, function in Win32 Fonts and Rendering pango_win32_shutdown_display, function in Win32 Fonts and Rendering PangoWrapMode, enum in Layout Objects X PangoXftFont, struct in Xft Fonts and Rendering PangoXftFontMap, struct in Xft Fonts and Rendering PangoXftRenderer, struct in Xft Fonts and Rendering PangoXftRenderer:display, object property in Xft Fonts and Rendering PangoXftRenderer:screen, object property in Xft Fonts and Rendering PangoXftRendererClass, struct in Xft Fonts and Rendering PangoXftSubstituteFunc, user_function in Xft Fonts and Rendering pango_xft_font_get_display, function in Xft Fonts and Rendering pango_xft_font_get_font, function in Xft Fonts and Rendering pango_xft_font_get_glyph, function in Xft Fonts and Rendering pango_xft_font_get_unknown_glyph, function in Xft Fonts and Rendering pango_xft_font_has_char, function in Xft Fonts and Rendering pango_xft_font_lock_face, function in Xft Fonts and Rendering pango_xft_font_unlock_face, function in Xft Fonts and Rendering pango_xft_get_context, function in Xft Fonts and Rendering pango_xft_get_font_map, function in Xft Fonts and Rendering pango_xft_picture_render, function in Xft Fonts and Rendering pango_xft_render, function in Xft Fonts and Rendering pango_xft_renderer_new, function in Xft Fonts and Rendering pango_xft_renderer_set_default_color, function in Xft Fonts and Rendering pango_xft_renderer_set_draw, function in Xft Fonts and Rendering pango_xft_render_layout, function in Xft Fonts and Rendering pango_xft_render_layout_line, function in Xft Fonts and Rendering pango_xft_render_transformed, function in Xft Fonts and Rendering pango_xft_set_default_substitute, function in Xft Fonts and Rendering pango_xft_shutdown_display, function in Xft Fonts and Rendering pango_xft_substitute_changed, function in Xft Fonts and Rendering docs/xml/api-index-deprecated.xml0000664000175000017500000007572414002404352017145 0ustar mclasenmclasen ]> B PangoBidiType, enum in Bidirectional Text pango_bidi_type_for_unichar, function in Bidirectional Text pango_break, function in Text Processing C pango_cairo_font_map_create_context, function in Cairo Rendering pango_coverage_from_bytes, function in Coverage Maps pango_coverage_max, function in Coverage Maps pango_coverage_to_bytes, function in Coverage Maps E PangoEngine, struct in Engines PangoEngineClass, struct in Engines PangoEngineInfo, struct in Engines PangoEngineLang, struct in PangoEngineLang PangoEngineLangClass, struct in PangoEngineLang PangoEngineScriptInfo, struct in Engines PangoEngineShape, struct in PangoEngineShape PangoEngineShapeClass, struct in PangoEngineShape PANGO_ENGINE_LANG_DEFINE_TYPE, macro in PangoEngineLang PANGO_ENGINE_SHAPE_DEFINE_TYPE, macro in PangoEngineShape PANGO_ENGINE_TYPE_LANG, macro in PangoEngineLang PANGO_ENGINE_TYPE_SHAPE, macro in PangoEngineShape F PangoFcFont, struct in PangoFcFont pango_fc_font_get_unknown_glyph, function in PangoFcFont pango_fc_font_has_char, function in PangoFcFont pango_fc_font_kern_glyphs, function in PangoFcFont pango_fc_font_lock_face, function in PangoFcFont pango_fc_font_map_create_context, function in PangoFcFontMap pango_fc_font_unlock_face, function in PangoFcFont pango_find_base_dir, function in Bidirectional Text pango_find_map, function in Modules PangoFont, struct in Fonts PangoFontFace, struct in Fonts PangoFontFamily, struct in Fonts pango_font_find_shaper, function in Fonts pango_ft2_font_get_coverage, function in FreeType Fonts and Rendering pango_ft2_font_get_face, function in FreeType Fonts and Rendering pango_ft2_font_get_kerning, function in FreeType Fonts and Rendering pango_ft2_font_map_create_context, function in FreeType Fonts and Rendering pango_ft2_font_map_for_display, function in FreeType Fonts and Rendering pango_ft2_font_map_set_default_substitute, function in FreeType Fonts and Rendering pango_ft2_font_map_substitute_changed, function in FreeType Fonts and Rendering pango_ft2_get_context, function in FreeType Fonts and Rendering pango_ft2_get_unknown_glyph, function in FreeType Fonts and Rendering pango_ft2_shutdown_display, function in FreeType Fonts and Rendering G pango_get_mirror_char, function in Bidirectional Text I PangoIncludedModule, struct in Modules M PangoMap, struct in Modules PangoMapEntry, struct in Modules pango_map_get_engine, function in Modules pango_map_get_engines, function in Modules pango_module_register, function in Modules O PangoOTBuffer, struct in OpenType Font Handling PangoOTFeatureMap, struct in OpenType Font Handling PangoOTGlyph, struct in OpenType Font Handling PangoOTInfo, struct in OpenType Font Handling PangoOTRuleset, struct in OpenType Font Handling PangoOTRulesetDescription, struct in OpenType Font Handling PangoOTTableType, enum in OpenType Font Handling PangoOTTag, typedef in OpenType Font Handling PANGO_OT_ALL_GLYPHS, macro in OpenType Font Handling pango_ot_buffer_add_glyph, function in OpenType Font Handling pango_ot_buffer_clear, function in OpenType Font Handling pango_ot_buffer_destroy, function in OpenType Font Handling pango_ot_buffer_get_glyphs, function in OpenType Font Handling pango_ot_buffer_new, function in OpenType Font Handling pango_ot_buffer_output, function in OpenType Font Handling pango_ot_buffer_set_rtl, function in OpenType Font Handling pango_ot_buffer_set_zero_width_marks, function in OpenType Font Handling PANGO_OT_DEFAULT_LANGUAGE, macro in OpenType Font Handling pango_ot_info_find_feature, function in OpenType Font Handling pango_ot_info_find_language, function in OpenType Font Handling pango_ot_info_find_script, function in OpenType Font Handling pango_ot_info_get, function in OpenType Font Handling pango_ot_info_list_features, function in OpenType Font Handling pango_ot_info_list_languages, function in OpenType Font Handling pango_ot_info_list_scripts, function in OpenType Font Handling PANGO_OT_NO_FEATURE, macro in OpenType Font Handling PANGO_OT_NO_SCRIPT, macro in OpenType Font Handling pango_ot_ruleset_add_feature, function in OpenType Font Handling pango_ot_ruleset_description_copy, function in OpenType Font Handling pango_ot_ruleset_description_equal, function in OpenType Font Handling pango_ot_ruleset_description_free, function in OpenType Font Handling pango_ot_ruleset_description_hash, function in OpenType Font Handling pango_ot_ruleset_get_feature_count, function in OpenType Font Handling pango_ot_ruleset_get_for_description, function in OpenType Font Handling pango_ot_ruleset_maybe_add_feature, function in OpenType Font Handling pango_ot_ruleset_maybe_add_features, function in OpenType Font Handling pango_ot_ruleset_new, function in OpenType Font Handling pango_ot_ruleset_new_for, function in OpenType Font Handling pango_ot_ruleset_new_from_description, function in OpenType Font Handling pango_ot_ruleset_position, function in OpenType Font Handling pango_ot_ruleset_substitute, function in OpenType Font Handling PANGO_OT_TAG_DEFAULT_LANGUAGE, macro in OpenType Font Handling PANGO_OT_TAG_DEFAULT_SCRIPT, macro in OpenType Font Handling pango_ot_tag_from_language, function in OpenType Font Handling pango_ot_tag_from_script, function in OpenType Font Handling PANGO_OT_TAG_MAKE, macro in OpenType Font Handling PANGO_OT_TAG_MAKE_FROM_STRING, macro in OpenType Font Handling pango_ot_tag_to_language, function in OpenType Font Handling pango_ot_tag_to_script, function in OpenType Font Handling P pango_parse_enum, function in Miscellaneous Utilities R pango_read_line, function in Miscellaneous Utilities S pango_scan_int, function in Miscellaneous Utilities pango_scan_string, function in Miscellaneous Utilities pango_scan_word, function in Miscellaneous Utilities script_engine_create, function in Engines script_engine_exit, function in Engines script_engine_init, function in Engines script_engine_list, function in Engines pango_script_for_unichar, function in Scripts and Languages pango_skip_space, function in Miscellaneous Utilities pango_split_file_list, function in Miscellaneous Utilities T pango_trim_string, function in Miscellaneous Utilities U pango_unichar_direction, function in Bidirectional Text W pango_win32_font_done_font, function in Win32 Fonts and Rendering pango_win32_font_get_glyph_index, function in Win32 Fonts and Rendering pango_win32_font_get_metrics_factor, function in Win32 Fonts and Rendering pango_win32_font_select_font, function in Win32 Fonts and Rendering pango_win32_get_context, function in Win32 Fonts and Rendering pango_win32_get_dc, function in Win32 Fonts and Rendering pango_win32_get_debug_flag, function in Win32 Fonts and Rendering pango_win32_get_unknown_glyph, function in Win32 Fonts and Rendering X pango_xft_font_get_display, function in Xft Fonts and Rendering pango_xft_font_get_font, function in Xft Fonts and Rendering pango_xft_font_get_glyph, function in Xft Fonts and Rendering pango_xft_font_get_unknown_glyph, function in Xft Fonts and Rendering pango_xft_font_has_char, function in Xft Fonts and Rendering pango_xft_font_lock_face, function in Xft Fonts and Rendering pango_xft_font_unlock_face, function in Xft Fonts and Rendering pango_xft_get_context, function in Xft Fonts and Rendering pango_xft_set_default_substitute, function in Xft Fonts and Rendering pango_xft_substitute_changed, function in Xft Fonts and Rendering docs/xml/api-index-1.10.xml0000664000175000017500000001371114002404352015410 0ustar mclasenmclasen ]> A pango_attr_list_ref, function in Text Attributes C PangoCairoFontMap, struct in Cairo Rendering pango_cairo_context_get_font_options, function in Cairo Rendering pango_cairo_context_get_resolution, function in Cairo Rendering pango_cairo_context_set_font_options, function in Cairo Rendering pango_cairo_context_set_resolution, function in Cairo Rendering pango_cairo_create_layout, function in Cairo Rendering pango_cairo_font_map_create_context, function in Cairo Rendering pango_cairo_font_map_get_default, function in Cairo Rendering pango_cairo_font_map_get_resolution, function in Cairo Rendering pango_cairo_font_map_new, function in Cairo Rendering pango_cairo_font_map_set_resolution, function in Cairo Rendering pango_cairo_glyph_string_path, function in Cairo Rendering pango_cairo_layout_line_path, function in Cairo Rendering pango_cairo_layout_path, function in Cairo Rendering pango_cairo_show_glyph_string, function in Cairo Rendering pango_cairo_show_layout, function in Cairo Rendering pango_cairo_show_layout_line, function in Cairo Rendering pango_cairo_update_context, function in Cairo Rendering pango_cairo_update_layout, function in Cairo Rendering F pango_font_get_font_map, function in Fonts I pango_is_zero_width, function in Miscellaneous Utilities L pango_layout_line_ref, function in Layout Objects docs/xml/api-index-1.12.xml0000664000175000017500000000235214002404352015411 0ustar mclasenmclasen ]> M pango_matrix_get_font_scale_factor, function in Glyph Storage Q pango_quantize_line_geometry, function in Miscellaneous Utilities W pango_win32_font_description_from_logfont, function in Win32 Fonts and Rendering docs/xml/api-index-1.14.xml0000664000175000017500000000356614002404352015423 0ustar mclasenmclasen ]> C pango_cairo_error_underline_path, function in Cairo Rendering pango_cairo_show_error_underline, function in Cairo Rendering F pango_font_describe_with_absolute_size, function in Fonts G pango_glyph_string_get_width, function in Glyph Storage P PANGO_PIXELS_CEIL, macro in Glyph Storage PANGO_PIXELS_FLOOR, macro in Glyph Storage docs/xml/api-index-1.16.xml0000664000175000017500000002451514002404352015422 0ustar mclasenmclasen ]> A PANGO_ANALYSIS_FLAG_CENTERED_BASELINE, macro in Text Processing pango_attr_gravity_hint_new, function in Text Attributes pango_attr_gravity_new, function in Text Attributes C pango_color_to_string, function in Text Attributes pango_context_get_base_gravity, function in Contexts pango_context_get_gravity, function in Contexts pango_context_get_gravity_hint, function in Contexts pango_context_set_base_gravity, function in Contexts pango_context_set_gravity_hint, function in Contexts E pango_extents_to_pixels, function in Glyph Storage F pango_font_description_get_gravity, function in Fonts pango_font_description_set_gravity, function in Fonts G PangoGravity, enum in Vertical Text PangoGravityHint, enum in Vertical Text pango_gravity_get_for_matrix, function in Vertical Text pango_gravity_get_for_script, function in Vertical Text PANGO_GRAVITY_IS_VERTICAL, macro in Vertical Text pango_gravity_to_rotation, function in Vertical Text L pango_language_get_default, function in Scripts and Languages pango_layout_get_lines_readonly, function in Layout Objects pango_layout_get_line_readonly, function in Layout Objects pango_layout_get_unknown_glyphs_count, function in Layout Objects pango_layout_is_ellipsized, function in Layout Objects pango_layout_is_wrapped, function in Layout Objects pango_layout_iter_get_line_readonly, function in Layout Objects pango_layout_iter_get_run_readonly, function in Layout Objects M pango_matrix_transform_distance, function in Glyph Storage pango_matrix_transform_pixel_rectangle, function in Glyph Storage pango_matrix_transform_point, function in Glyph Storage pango_matrix_transform_rectangle, function in Glyph Storage O PANGO_OT_ALL_GLYPHS, macro in OpenType Font Handling PANGO_OT_DEFAULT_LANGUAGE, macro in OpenType Font Handling P pango_parse_enum, function in Miscellaneous Utilities U pango_units_from_double, function in Glyph Storage pango_units_to_double, function in Glyph Storage V pango_version, function in Version Checking pango_version_check, function in Version Checking pango_version_string, function in Version Checking W pango_win32_font_cache_loadw, function in Win32 Fonts and Rendering pango_win32_font_description_from_logfontw, function in Win32 Fonts and Rendering pango_win32_font_logfontw, function in Win32 Fonts and Rendering docs/xml/api-index-1.18.xml0000664000175000017500000001673514002404352015431 0ustar mclasenmclasen ]> C PangoCairoFont, struct in Cairo Rendering pango_cairo_context_get_shape_renderer, function in Cairo Rendering pango_cairo_context_set_shape_renderer, function in Cairo Rendering pango_cairo_font_get_scaled_font, function in Cairo Rendering pango_cairo_font_map_get_font_type, function in Cairo Rendering pango_cairo_font_map_new_for_font_type, function in Cairo Rendering F pango_font_face_is_synthesized, function in Fonts O PangoOTFeatureMap, struct in OpenType Font Handling PangoOTRulesetDescription, struct in OpenType Font Handling PANGO_OT_NO_FEATURE, macro in OpenType Font Handling PANGO_OT_NO_SCRIPT, macro in OpenType Font Handling pango_ot_ruleset_description_copy, function in OpenType Font Handling pango_ot_ruleset_description_equal, function in OpenType Font Handling pango_ot_ruleset_description_free, function in OpenType Font Handling pango_ot_ruleset_description_hash, function in OpenType Font Handling pango_ot_ruleset_get_feature_count, function in OpenType Font Handling pango_ot_ruleset_get_for_description, function in OpenType Font Handling pango_ot_ruleset_maybe_add_feature, function in OpenType Font Handling pango_ot_ruleset_maybe_add_features, function in OpenType Font Handling pango_ot_ruleset_new_for, function in OpenType Font Handling pango_ot_ruleset_new_from_description, function in OpenType Font Handling PANGO_OT_TAG_DEFAULT_LANGUAGE, macro in OpenType Font Handling PANGO_OT_TAG_DEFAULT_SCRIPT, macro in OpenType Font Handling pango_ot_tag_from_language, function in OpenType Font Handling pango_ot_tag_from_script, function in OpenType Font Handling pango_ot_tag_to_language, function in OpenType Font Handling pango_ot_tag_to_script, function in OpenType Font Handling U PANGO_UNITS_ROUND, macro in Glyph Storage docs/xml/api-index-1.2.xml0000664000175000017500000001243614002404352015334 0ustar mclasenmclasen ]> A pango_attr_iterator_get_attrs, function in Text Attributes pango_attr_list_filter, function in Text Attributes F pango_ft2_font_map_create_context, function in FreeType Fonts and Rendering pango_ft2_font_map_new, function in FreeType Fonts and Rendering pango_ft2_font_map_set_default_substitute, function in FreeType Fonts and Rendering pango_ft2_font_map_set_resolution, function in FreeType Fonts and Rendering pango_ft2_font_map_substitute_changed, function in FreeType Fonts and Rendering G pango_glyph_item_apply_attrs, function in Glyph Storage pango_glyph_item_split, function in Glyph Storage O pango_ot_info_get, function in OpenType Font Handling W pango_win32_get_debug_flag, function in Win32 Fonts and Rendering X pango_xft_font_get_glyph, function in Xft Fonts and Rendering pango_xft_font_has_char, function in Xft Fonts and Rendering pango_xft_font_lock_face, function in Xft Fonts and Rendering pango_xft_font_unlock_face, function in Xft Fonts and Rendering pango_xft_get_font_map, function in Xft Fonts and Rendering pango_xft_set_default_substitute, function in Xft Fonts and Rendering pango_xft_shutdown_display, function in Xft Fonts and Rendering pango_xft_substitute_changed, function in Xft Fonts and Rendering docs/xml/api-index-1.20.xml0000664000175000017500000000564714002404352015422 0ustar mclasenmclasen ]> A pango_attribute_init, function in Text Attributes F PANGO_FC_GRAVITY, macro in PangoFcFontMap PANGO_FC_VERSION, macro in PangoFcFontMap G PANGO_GLYPH_INVALID_INPUT, macro in Glyph Storage pango_glyph_item_copy, function in Glyph Storage L pango_layout_get_height, function in Layout Objects pango_layout_iter_copy, function in Layout Objects pango_layout_iter_get_layout, function in Layout Objects pango_layout_set_height, function in Layout Objects R pango_renderer_get_layout, function in PangoRenderer pango_renderer_get_layout_line, function in PangoRenderer docs/xml/api-index-1.22.xml0000664000175000017500000001105014002404352015405 0ustar mclasenmclasen ]> A pango_attr_type_get_name, function in Text Attributes B PangoBidiType, enum in Bidirectional Text pango_bidi_type_for_unichar, function in Bidirectional Text C pango_cairo_create_context, function in Cairo Rendering pango_cairo_font_map_set_default, function in Cairo Rendering pango_cairo_show_glyph_item, function in Cairo Rendering F pango_font_map_create_context, function in Fonts G PangoGlyphItemIter, struct in Glyph Storage pango_glyph_item_iter_copy, function in Glyph Storage pango_glyph_item_iter_free, function in Glyph Storage pango_glyph_item_iter_init_end, function in Glyph Storage pango_glyph_item_iter_init_start, function in Glyph Storage pango_glyph_item_iter_next_cluster, function in Glyph Storage pango_glyph_item_iter_prev_cluster, function in Glyph Storage L pango_language_get_scripts, function in Scripts and Languages pango_layout_get_baseline, function in Layout Objects R pango_renderer_draw_glyph_item, function in PangoRenderer docs/xml/api-index-1.24.xml0000664000175000017500000000261414002404352015415 0ustar mclasenmclasen ]> A PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING, macro in Text Attributes PANGO_ATTR_INDEX_TO_TEXT_END, macro in Text Attributes C pango_core_text_font_get_ctfont, function in CoreText Fonts F PANGO_FC_PRGNAME, macro in PangoFcFontMap docs/xml/api-index-1.26.xml0000664000175000017500000000222314002404352015413 0ustar mclasenmclasen ]> F pango_fc_font_map_find_decoder, function in PangoFcFontMap G pango_glyph_item_get_logical_widths, function in Glyph Storage pango_gravity_get_for_script_and_width, function in Vertical Text docs/xml/api-index-1.30.xml0000664000175000017500000000155514002404352015415 0ustar mclasenmclasen ]> L pango_layout_get_character_count, function in Layout Objects pango_layout_get_log_attrs_readonly, function in Layout Objects docs/xml/api-index-1.31.0.xml0000664000175000017500000000143114002404352015545 0ustar mclasenmclasen ]> M pango_markup_parser_finish, function in Markup pango_markup_parser_new, function in Markup docs/xml/api-index-1.32.xml0000664000175000017500000000151514002404352015413 0ustar mclasenmclasen ]> G PANGO_GRAVITY_IS_IMPROPER, macro in Vertical Text S pango_shape_full, function in Text Processing docs/xml/api-index-1.32.4.xml0000664000175000017500000000243314002404352015555 0ustar mclasenmclasen ]> C pango_context_changed, function in Contexts pango_context_get_serial, function in Contexts F pango_font_map_get_serial, function in Fonts L pango_layout_get_serial, function in Layout Objects docs/xml/api-index-1.34.xml0000664000175000017500000000142714002404352015417 0ustar mclasenmclasen ]> F PANGO_FC_FONT_FEATURES, macro in PangoFcFontMap pango_font_map_changed, function in Fonts docs/xml/api-index-1.36.7.xml0000664000175000017500000000115714002404352015566 0ustar mclasenmclasen ]> A PANGO_ANALYSIS_FLAG_IS_ELLIPSIS, macro in Text Processing docs/xml/api-index-1.38.xml0000664000175000017500000000546114002404352015425 0ustar mclasenmclasen ]> A PangoAttrFontFeatures, struct in Text Attributes pango_attr_background_alpha_new, function in Text Attributes pango_attr_font_features_new, function in Text Attributes pango_attr_foreground_alpha_new, function in Text Attributes F pango_fc_font_map_config_changed, function in PangoFcFontMap pango_fc_font_map_get_config, function in PangoFcFontMap pango_fc_font_map_set_config, function in PangoFcFontMap M pango_matrix_get_font_scale_factors, function in Glyph Storage R pango_renderer_get_alpha, function in PangoRenderer pango_renderer_set_alpha, function in PangoRenderer docs/xml/api-index-1.4.xml0000664000175000017500000002213614002404352015334 0ustar mclasenmclasen ]> A pango_attr_fallback_new, function in Text Attributes F pango_fc_font_description_from_pattern, function in PangoFcFontMap pango_fc_font_get_glyph, function in PangoFcFont pango_fc_font_get_unknown_glyph, function in PangoFcFont pango_fc_font_has_char, function in PangoFcFont pango_fc_font_kern_glyphs, function in PangoFcFont pango_fc_font_lock_face, function in PangoFcFont pango_fc_font_map_cache_clear, function in PangoFcFontMap pango_fc_font_map_create_context, function in PangoFcFontMap pango_fc_font_map_shutdown, function in PangoFcFontMap pango_fc_font_unlock_face, function in PangoFcFont pango_find_base_dir, function in Bidirectional Text PangoFontsetForeachFunc, user_function in Fonts pango_fontset_foreach, function in Fonts pango_font_face_list_sizes, function in Fonts pango_font_family_is_monospace, function in Fonts I pango_itemize_with_base_dir, function in Text Processing L pango_language_includes_script, function in Scripts and Languages pango_layout_get_auto_dir, function in Layout Objects pango_layout_set_auto_dir, function in Layout Objects pango_log2vis_get_embedding_levels, function in Miscellaneous Utilities M pango_map_get_engines, function in Modules O pango_ot_buffer_add_glyph, function in OpenType Font Handling pango_ot_buffer_clear, function in OpenType Font Handling pango_ot_buffer_destroy, function in OpenType Font Handling pango_ot_buffer_get_glyphs, function in OpenType Font Handling pango_ot_buffer_new, function in OpenType Font Handling pango_ot_buffer_output, function in OpenType Font Handling pango_ot_buffer_set_rtl, function in OpenType Font Handling pango_ot_ruleset_position, function in OpenType Font Handling pango_ot_ruleset_substitute, function in OpenType Font Handling S pango_script_for_unichar, function in Scripts and Languages pango_script_get_sample_language, function in Scripts and Languages pango_script_iter_free, function in Scripts and Languages pango_script_iter_get_range, function in Scripts and Languages pango_script_iter_new, function in Scripts and Languages pango_script_iter_next, function in Scripts and Languages docs/xml/api-index-1.42.xml0000664000175000017500000001424714002404352015422 0ustar mclasenmclasen ]> F pango_font_description_get_variations, function in Fonts pango_font_description_set_variations, function in Fonts pango_font_description_set_variations_static, function in Fonts V PANGO_VERSION_1_10, macro in Version Checking PANGO_VERSION_1_12, macro in Version Checking PANGO_VERSION_1_14, macro in Version Checking PANGO_VERSION_1_16, macro in Version Checking PANGO_VERSION_1_18, macro in Version Checking PANGO_VERSION_1_2, macro in Version Checking PANGO_VERSION_1_20, macro in Version Checking PANGO_VERSION_1_22, macro in Version Checking PANGO_VERSION_1_24, macro in Version Checking PANGO_VERSION_1_26, macro in Version Checking PANGO_VERSION_1_28, macro in Version Checking PANGO_VERSION_1_30, macro in Version Checking PANGO_VERSION_1_32, macro in Version Checking PANGO_VERSION_1_34, macro in Version Checking PANGO_VERSION_1_36, macro in Version Checking PANGO_VERSION_1_38, macro in Version Checking PANGO_VERSION_1_4, macro in Version Checking PANGO_VERSION_1_40, macro in Version Checking PANGO_VERSION_1_42, macro in Version Checking PANGO_VERSION_1_6, macro in Version Checking PANGO_VERSION_1_8, macro in Version Checking PANGO_VERSION_MAX_ALLOWED, macro in Version Checking PANGO_VERSION_MIN_REQUIRED, macro in Version Checking docs/xml/api-index-1.44.xml0000664000175000017500000001222514002404352015416 0ustar mclasenmclasen ]> A PANGO_ANALYSIS_FLAG_NEED_HYPHEN, macro in Text Processing pango_attr_allow_breaks_new, function in Text Attributes pango_attr_insert_hyphens_new, function in Text Attributes pango_attr_list_get_attributes, function in Text Attributes pango_attr_list_update, function in Text Attributes pango_attr_show_new, function in Text Attributes C pango_context_get_round_glyph_positions, function in Contexts pango_context_set_round_glyph_positions, function in Contexts F pango_font_family_is_variable, function in Fonts pango_font_get_features, function in Fonts pango_font_get_hb_font, function in Fonts pango_font_has_char, function in Fonts pango_font_metrics_get_height, function in Fonts I pango_item_apply_attrs, function in Text Processing L pango_layout_get_line_spacing, function in Layout Objects pango_layout_line_get_height, function in Layout Objects pango_layout_set_line_spacing, function in Layout Objects S pango_shape_with_flags, function in Text Processing T pango_tailor_break, function in Text Processing V PANGO_VERSION_1_44, macro in Version Checking docs/xml/api-index-1.6.xml0000664000175000017500000001643714002404352015345 0ustar mclasenmclasen ]> A pango_attr_letter_spacing_new, function in Text Attributes C pango_context_get_font_map, function in Contexts pango_context_get_matrix, function in Contexts pango_context_set_matrix, function in Contexts F PangoFcDecoder, struct in PangoFcDecoder PangoFcDecoderClass, struct in PangoFcDecoder pango_fc_decoder_get_charset, function in PangoFcDecoder pango_fc_decoder_get_glyph, function in PangoFcDecoder pango_fc_font_map_add_decoder_find_func, function in PangoFcFontMap pango_font_metrics_get_strikethrough_position, function in Fonts pango_font_metrics_get_strikethrough_thickness, function in Fonts pango_font_metrics_get_underline_position, function in Fonts pango_font_metrics_get_underline_thickness, function in Fonts pango_ft2_render_layout_line_subpixel, function in FreeType Fonts and Rendering pango_ft2_render_layout_subpixel, function in FreeType Fonts and Rendering pango_ft2_render_transformed, function in FreeType Fonts and Rendering G pango_glyph_item_free, function in Glyph Storage pango_glyph_item_letter_space, function in Glyph Storage L pango_layout_get_ellipsize, function in Layout Objects pango_layout_set_ellipsize, function in Layout Objects M PangoMatrix, struct in Glyph Storage pango_matrix_concat, function in Glyph Storage pango_matrix_copy, function in Glyph Storage pango_matrix_free, function in Glyph Storage PANGO_MATRIX_INIT, macro in Glyph Storage pango_matrix_rotate, function in Glyph Storage pango_matrix_scale, function in Glyph Storage pango_matrix_translate, function in Glyph Storage O pango_ot_buffer_set_zero_width_marks, function in OpenType Font Handling docs/xml/api-index-1.8.xml0000664000175000017500000001766214002404352015350 0ustar mclasenmclasen ]> A pango_attr_shape_new_with_data, function in Text Attributes pango_attr_size_new_absolute, function in Text Attributes pango_attr_strikethrough_color_new, function in Text Attributes pango_attr_underline_color_new, function in Text Attributes F pango_font_description_get_size_is_absolute, function in Fonts pango_font_description_set_absolute_size, function in Fonts L pango_layout_get_font_description, function in Layout Objects R PangoRenderer, struct in PangoRenderer PangoRendererClass, struct in PangoRenderer pango_renderer_activate, function in PangoRenderer pango_renderer_deactivate, function in PangoRenderer pango_renderer_draw_error_underline, function in PangoRenderer pango_renderer_draw_glyph, function in PangoRenderer pango_renderer_draw_glyphs, function in PangoRenderer pango_renderer_draw_layout, function in PangoRenderer pango_renderer_draw_layout_line, function in PangoRenderer pango_renderer_draw_rectangle, function in PangoRenderer pango_renderer_draw_trapezoid, function in PangoRenderer pango_renderer_get_color, function in PangoRenderer pango_renderer_get_matrix, function in PangoRenderer pango_renderer_part_changed, function in PangoRenderer pango_renderer_set_color, function in PangoRenderer pango_renderer_set_matrix, function in PangoRenderer PangoRenderPart, enum in PangoRenderer X PangoXftRenderer, struct in Xft Fonts and Rendering PangoXftRendererClass, struct in Xft Fonts and Rendering pango_xft_renderer_new, function in Xft Fonts and Rendering pango_xft_renderer_set_default_color, function in Xft Fonts and Rendering pango_xft_renderer_set_draw, function in Xft Fonts and Rendering pango_xft_render_layout, function in Xft Fonts and Rendering pango_xft_render_layout_line, function in Xft Fonts and Rendering pango_xft_render_transformed, function in Xft Fonts and Rendering docs/xml/annotation-glossary.xml0000664000175000017500000001245514002404352017174 0ustar mclasenmclasen ]> Annotation Glossary A allow-none NULL is OK, both for passing and for returning. array Parameter points to an array of items. C closure This parameter is a 'user_data', for callbacks; many bindings can pass NULL here. E element-type Generics and defining elements of containers and arrays. I inout Parameter for input and for returning results. Default is transfer full. N not nullable NULL must not be passed as the value in, out, in-out; or as a return value. nullable NULL may be passed as the value in, out, in-out; or as a return value. O optional NULL may be passed instead of a pointer to a location. out Parameter for returning results. Default is transfer full. out caller-allocates Out parameter, where caller must allocate storage. S scope call The callback is valid only during the call to the method. skip Exposed in C code, not necessarily available in other languages. T transfer container Free data container after the code is done. transfer full Free data after the code is done. transfer none Don't free data after the code is done. type Override the parsed C type with given type. U Unstable Unstable interfaces are experimental or transitional. They are typically used to give outside developers early access to new or rapidly changing technology, or to provide an interim solution to a problem where a more general solution is anticipated. No claims are made about either source or binary compatibility from one minor release to the next. The Unstable interface level is a warning that these interfaces are subject to change without warning and should not be used in unbundled products. Given such caveats, customer impact need not be a factor when considering incompatible changes to an Unstable interface in a major or minor release. Nonetheless, when such changes are introduced, the changes should still be mentioned in the release notes for the affected release. docs/version.xml0000664000175000017500000000000714002404342014033 0ustar mclasenmclasen1.48.1 docs/pango.types0000664000175000017500000000320714002404342014023 0ustar mclasenmclasenpango_alignment_get_type pango_attr_iterator_get_type pango_attr_list_get_type pango_attr_type_get_type pango_attribute_get_type pango_bidi_type_get_type pango_cairo_fc_font_get_type pango_cairo_fc_font_map_get_type pango_cairo_font_get_type pango_cairo_font_map_get_type pango_cairo_renderer_get_type pango_color_get_type pango_context_get_type pango_coverage_get_type pango_coverage_level_get_type pango_direction_get_type pango_ellipsize_mode_get_type pango_engine_get_type pango_engine_lang_get_type pango_engine_shape_get_type pango_fc_decoder_get_type pango_fc_font_get_type pango_fc_font_map_get_type pango_font_description_get_type pango_font_face_get_type pango_font_family_get_type pango_font_get_type pango_font_map_get_type pango_font_mask_get_type pango_font_metrics_get_type pango_fontset_get_type pango_fontset_simple_get_type pango_ft2_font_get_type pango_ft2_font_map_get_type pango_ft2_renderer_get_type pango_glyph_item_get_type pango_glyph_item_iter_get_type pango_glyph_string_get_type pango_gravity_get_type pango_gravity_hint_get_type pango_item_get_type pango_language_get_type pango_layout_get_type pango_layout_iter_get_type pango_layout_line_get_type pango_matrix_get_type pango_ot_info_get_type pango_ot_ruleset_get_type pango_render_part_get_type pango_renderer_get_type pango_script_get_type pango_script_iter_get_type pango_shape_flags_get_type pango_show_flags_get_type pango_stretch_get_type pango_style_get_type pango_tab_align_get_type pango_tab_array_get_type pango_underline_get_type pango_variant_get_type pango_weight_get_type pango_wrap_mode_get_type pango_xft_font_get_type pango_xft_font_map_get_type pango_xft_renderer_get_type docs/pango-docs.sgml0000664000175000017500000001435014002404351014550 0ustar mclasenmclasen ]> Pango Reference Manual Internationalized text layout and rendering for Pango &version;. Online at https://developer.gnome.org/pango/ Basic Pango Interfaces Rendering with Pango Low Level Functionality Deprecated APIs Object Hierarchy Index of all symbols Index of deprecated symbols Index of new symbols in 1.2 Index of new symbols in 1.4 Index of new symbols in 1.6 Index of new symbols in 1.8 Index of new symbols in 1.10 Index of new symbols in 1.12 Index of new symbols in 1.14 Index of new symbols in 1.16 Index of new symbols in 1.18 Index of new symbols in 1.20 Index of new symbols in 1.22 Index of new symbols in 1.24 Index of new symbols in 1.26 Index of new symbols in 1.30 Index of new symbols in 1.31 Index of new symbols in 1.32 Index of new symbols in 1.32.4 Index of new symbols in 1.34 Index of new symbols in 1.38 Index of new symbols in 1.42 Index of new symbols in 1.44 Index of new symbols in 1.46 docs/pango-sections.txt0000664000175000017500000007073414002404351015334 0ustar mclasenmclasen
Text Processing main PangoItem PangoAnalysis PANGO_ANALYSIS_FLAG_CENTERED_BASELINE PANGO_ANALYSIS_FLAG_IS_ELLIPSIS PANGO_ANALYSIS_FLAG_NEED_HYPHEN pango_itemize pango_itemize_with_base_dir pango_item_free pango_item_copy pango_item_new pango_item_split pango_item_apply_attrs pango_reorder_items pango_break pango_get_log_attrs pango_find_paragraph_boundary pango_default_break pango_tailor_break PangoLogAttr pango_shape pango_shape_full PangoShapeFlags pango_shape_with_flags PANGO_TYPE_DIRECTION PANGO_TYPE_ITEM pango_item_get_type
Contexts context PangoContext pango_context_new pango_context_changed pango_context_get_serial pango_context_set_font_map pango_context_get_font_map pango_context_get_font_description pango_context_set_font_description pango_context_get_language pango_context_set_language pango_context_get_base_dir pango_context_set_base_dir pango_context_get_base_gravity pango_context_set_base_gravity pango_context_get_gravity pango_context_get_gravity_hint pango_context_set_gravity_hint pango_context_get_matrix pango_context_set_matrix pango_context_get_round_glyph_positions pango_context_set_round_glyph_positions pango_context_load_font pango_context_load_fontset pango_context_get_metrics pango_context_list_families PANGO_TYPE_CONTEXT PangoContextClass PANGO_CONTEXT PANGO_CONTEXT_CLASS PANGO_IS_CONTEXT PANGO_IS_CONTEXT_CLASS PANGO_CONTEXT_GET_CLASS PANGO_TYPE_ITEM pango_context_get_type
Glyph Storage glyphs PANGO_SCALE PANGO_PIXELS PANGO_PIXELS_FLOOR PANGO_PIXELS_CEIL PANGO_UNITS_ROUND pango_units_to_double pango_units_from_double PangoRectangle PANGO_ASCENT PANGO_DESCENT PANGO_LBEARING PANGO_RBEARING pango_extents_to_pixels PangoMatrix PANGO_MATRIX_INIT pango_matrix_copy pango_matrix_free pango_matrix_translate pango_matrix_scale pango_matrix_rotate pango_matrix_concat pango_matrix_transform_point pango_matrix_transform_distance pango_matrix_transform_rectangle pango_matrix_transform_pixel_rectangle pango_matrix_get_font_scale_factor pango_matrix_get_font_scale_factors PangoGlyph PANGO_GLYPH_EMPTY PANGO_GLYPH_INVALID_INPUT PANGO_GLYPH_UNKNOWN_FLAG PANGO_GET_UNKNOWN_GLYPH PangoGlyphInfo PangoGlyphGeometry PangoGlyphUnit PangoGlyphVisAttr PangoGlyphString PangoGlyphItem PangoGlyphItemIter pango_glyph_string_new pango_glyph_string_copy pango_glyph_string_set_size pango_glyph_string_free pango_glyph_string_extents pango_glyph_string_extents_range pango_glyph_string_get_width pango_glyph_string_index_to_x pango_glyph_string_x_to_index pango_glyph_string_get_logical_widths pango_glyph_item_copy pango_glyph_item_free pango_glyph_item_split pango_glyph_item_apply_attrs pango_glyph_item_letter_space pango_glyph_item_get_logical_widths pango_glyph_item_iter_copy pango_glyph_item_iter_free pango_glyph_item_iter_init_start pango_glyph_item_iter_init_end pango_glyph_item_iter_next_cluster pango_glyph_item_iter_prev_cluster PANGO_TYPE_GLYPH_STRING PANGO_TYPE_GLYPH_ITEM PANGO_TYPE_GLYPH_ITEM_ITER PANGO_TYPE_MATRIX pango_glyph_string_get_type pango_glyph_item_get_type pango_glyph_item_iter_get_type pango_matrix_get_type
Coverage Maps coverage-maps PangoCoverageLevel PANGO_TYPE_COVERAGE_LEVEL PangoCoverage pango_coverage_new pango_coverage_ref pango_coverage_unref pango_coverage_copy pango_coverage_get pango_coverage_max pango_coverage_set pango_coverage_to_bytes pango_coverage_from_bytes pango_coverage_level_get_type pango_coverage_get_type PANGO_COVERAGE PANGO_COVERAGE_CLASS PANGO_COVERAGE_GET_CLASS PANGO_IS_COVERAGE PANGO_IS_COVERAGE_CLASS PANGO_TYPE_COVERAGE PangoCoverageClass PangoCoveragePrivate
Fonts fonts PangoFontDescription PangoStyle PangoWeight PangoVariant PangoStretch PangoFontMask pango_font_description_new pango_font_description_copy pango_font_description_copy_static pango_font_description_hash pango_font_description_equal pango_font_description_free pango_font_descriptions_free pango_font_description_set_family pango_font_description_set_family_static pango_font_description_get_family pango_font_description_set_style pango_font_description_get_style pango_font_description_set_variant pango_font_description_get_variant pango_font_description_set_weight pango_font_description_get_weight pango_font_description_set_stretch pango_font_description_get_stretch pango_font_description_set_size pango_font_description_get_size pango_font_description_set_absolute_size pango_font_description_get_size_is_absolute pango_font_description_set_gravity pango_font_description_get_gravity pango_font_description_set_variations pango_font_description_set_variations_static pango_font_description_get_variations pango_font_description_get_set_fields pango_font_description_unset_fields pango_font_description_merge pango_font_description_merge_static pango_font_description_better_match pango_font_description_from_string pango_font_description_to_string pango_font_description_to_filename PangoFontMetrics pango_font_metrics_ref pango_font_metrics_unref pango_font_metrics_get_ascent pango_font_metrics_get_descent pango_font_metrics_get_height pango_font_metrics_get_approximate_char_width pango_font_metrics_get_approximate_digit_width pango_font_metrics_get_underline_thickness pango_font_metrics_get_underline_position pango_font_metrics_get_strikethrough_thickness pango_font_metrics_get_strikethrough_position PangoFont pango_font_find_shaper pango_font_describe pango_font_describe_with_absolute_size pango_font_get_face pango_font_get_coverage pango_font_has_char pango_font_get_glyph_extents pango_font_get_metrics pango_font_get_font_map pango_font_get_features pango_font_get_hb_font PangoFontFamily pango_font_family_get_name pango_font_family_is_monospace pango_font_family_is_variable pango_font_family_list_faces pango_font_family_get_face PangoFontFace pango_font_face_get_face_name pango_font_face_list_sizes pango_font_face_describe pango_font_face_is_synthesized pango_font_face_get_family PangoFontMap PangoFontMapClass pango_font_map_create_context pango_font_map_load_font pango_font_map_load_fontset pango_font_map_list_families pango_font_map_get_family pango_font_map_get_serial pango_font_map_changed PangoFontset PangoFontsetClass pango_fontset_get_font pango_fontset_get_metrics PangoFontsetForeachFunc pango_fontset_foreach PANGO_TYPE_FONTSET PANGO_TYPE_FONT_MAP PANGO_FONT_MAP PANGO_IS_FONT_MAP PANGO_FONT_MAP_CLASS PANGO_IS_FONT_MAP_CLASS PANGO_FONT_MAP_GET_CLASS PANGO_TYPE_FONT_FAMILY PANGO_FONT_FAMILY PANGO_IS_FONT_FAMILY PANGO_TYPE_FONT_FACE PANGO_FONT_FACE PANGO_IS_FONT_FACE PANGO_TYPE_FONT_METRICS PANGO_TYPE_FONT PANGO_FONT PANGO_IS_FONT PANGO_TYPE_FONT_DESCRIPTION PANGO_TYPE_STYLE PANGO_TYPE_WEIGHT PANGO_TYPE_VARIANT PANGO_TYPE_STRETCH PANGO_TYPE_FONT_MASK PANGO_FONT_FACE_CLASS PANGO_IS_FONT_CLASS PANGO_FONT_FACE_GET_CLASS PangoFontFamilyClass PangoFontFaceClass PANGO_FONT_GET_CLASS PANGO_FONT_CLASS PANGO_IS_FONT_FAMILY_CLASS PangoFontClass PANGO_FONT_FAMILY_GET_CLASS PANGO_FONT_FAMILY_CLASS PANGO_IS_FONT_FACE_CLASS PANGO_FONTSET PANGO_IS_FONTSET PANGO_FONTSET_CLASS PANGO_IS_FONTSET_CLASS PANGO_FONTSET_GET_CLASS PANGO_FONTSET_SIMPLE PANGO_IS_FONTSET_SIMPLE PangoFontsetSimpleClass pango_font_metrics_new pango_font_get_type pango_stretch_get_type pango_style_get_type pango_variant_get_type pango_weight_get_type pango_font_mask_get_type pango_font_description_get_type pango_font_map_get_type pango_font_face_get_type pango_font_family_get_type pango_font_metrics_get_type pango_fontset_get_type pango_fontset_simple_get_type PANGO_UNKNOWN_GLYPH_WIDTH PANGO_UNKNOWN_GLYPH_HEIGHT
Text Attributes text-attributes PangoAttrType PangoAttrClass PangoAttribute PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING PANGO_ATTR_INDEX_TO_TEXT_END PangoAttrString PangoAttrLanguage PangoAttrColor PangoAttrInt PangoAttrFloat PangoAttrFontDesc PangoAttrShape PangoAttrSize PangoAttrFontFeatures pango_attr_type_register pango_attr_type_get_name pango_attribute_init pango_attribute_copy pango_attribute_equal pango_attribute_destroy pango_attr_language_new pango_attr_family_new pango_attr_style_new pango_attr_variant_new pango_attr_stretch_new pango_attr_weight_new pango_attr_size_new pango_attr_size_new_absolute pango_attr_font_desc_new pango_attr_foreground_new pango_attr_background_new pango_attr_strikethrough_new pango_attr_strikethrough_color_new pango_attr_underline_new pango_attr_underline_color_new PangoUnderline pango_attr_overline_new pango_attr_overline_color_new PangoOverline pango_attr_shape_new pango_attr_shape_new_with_data PangoAttrDataCopyFunc pango_attr_scale_new PANGO_SCALE_XX_SMALL PANGO_SCALE_X_SMALL PANGO_SCALE_SMALL PANGO_SCALE_MEDIUM PANGO_SCALE_LARGE PANGO_SCALE_X_LARGE PANGO_SCALE_XX_LARGE pango_attr_rise_new pango_attr_letter_spacing_new pango_attr_fallback_new pango_attr_gravity_new pango_attr_gravity_hint_new pango_attr_font_features_new pango_attr_foreground_alpha_new pango_attr_background_alpha_new pango_attr_allow_breaks_new pango_attr_insert_hyphens_new PangoShowFlags pango_attr_show_new PangoColor pango_color_parse pango_color_parse_with_alpha pango_color_copy pango_color_free pango_color_to_string PangoAttrList pango_attr_list_new pango_attr_list_ref pango_attr_list_unref pango_attr_list_copy pango_attr_list_insert pango_attr_list_insert_before pango_attr_list_change pango_attr_list_splice pango_attr_list_filter pango_attr_list_update PangoAttrFilterFunc pango_attr_list_get_attributes pango_attr_list_equal pango_attr_list_get_iterator PangoAttrIterator pango_attr_iterator_copy pango_attr_iterator_next pango_attr_iterator_range pango_attr_iterator_get pango_attr_iterator_get_font pango_attr_iterator_get_attrs pango_attr_iterator_destroy PANGO_TYPE_ATTR_TYPE PANGO_TYPE_UNDERLINE PANGO_TYPE_COLOR PANGO_TYPE_ATTR_LIST pango_attr_type_get_type pango_attr_list_get_type pango_underline_get_type pango_color_get_type pango_attribute_get_type
Markup markup pango_parse_markup pango_markup_parser_new pango_markup_parser_finish
Tab Stops tab-stops PangoTabArray PangoTabAlign pango_tab_array_new pango_tab_array_new_with_positions pango_tab_array_copy pango_tab_array_free pango_tab_array_get_size pango_tab_array_resize pango_tab_array_set_tab pango_tab_array_get_tab pango_tab_array_get_tabs pango_tab_array_get_positions_in_pixels PANGO_TYPE_TAB_ARRAY PANGO_TYPE_TAB_ALIGN pango_tab_align_get_type pango_tab_array_get_type
Layout Objects layout PangoLayout PangoLayoutIter pango_layout_new pango_layout_copy pango_layout_get_context pango_layout_context_changed pango_layout_get_serial pango_layout_set_text pango_layout_get_text pango_layout_get_character_count pango_layout_set_markup pango_layout_set_markup_with_accel pango_layout_set_attributes pango_layout_get_attributes pango_layout_set_font_description pango_layout_get_font_description pango_layout_set_width pango_layout_get_width pango_layout_set_height pango_layout_get_height pango_layout_set_wrap pango_layout_get_wrap pango_layout_is_wrapped PangoWrapMode pango_layout_set_ellipsize pango_layout_get_ellipsize pango_layout_is_ellipsized PangoEllipsizeMode pango_layout_set_indent pango_layout_get_indent pango_layout_get_spacing pango_layout_set_spacing pango_layout_set_line_spacing pango_layout_get_line_spacing pango_layout_set_justify pango_layout_get_justify pango_layout_set_auto_dir pango_layout_get_auto_dir pango_layout_get_direction pango_layout_set_alignment pango_layout_get_alignment pango_layout_set_tabs pango_layout_get_tabs pango_layout_set_single_paragraph_mode pango_layout_get_single_paragraph_mode PangoAlignment pango_layout_get_unknown_glyphs_count pango_layout_get_log_attrs pango_layout_get_log_attrs_readonly pango_layout_index_to_pos pango_layout_index_to_line_x pango_layout_xy_to_index pango_layout_get_cursor_pos pango_layout_move_cursor_visually pango_layout_get_extents pango_layout_get_pixel_extents pango_layout_get_size pango_layout_get_pixel_size pango_layout_get_baseline pango_layout_get_line_count pango_layout_get_line pango_layout_get_line_readonly pango_layout_get_lines pango_layout_get_lines_readonly pango_layout_get_iter pango_layout_iter_copy pango_layout_iter_free pango_layout_iter_next_run pango_layout_iter_next_char pango_layout_iter_next_cluster pango_layout_iter_next_line pango_layout_iter_at_last_line pango_layout_iter_get_index pango_layout_iter_get_baseline pango_layout_iter_get_run pango_layout_iter_get_run_readonly pango_layout_iter_get_line pango_layout_iter_get_line_readonly pango_layout_iter_get_layout pango_layout_iter_get_char_extents pango_layout_iter_get_cluster_extents pango_layout_iter_get_run_extents pango_layout_iter_get_line_yrange pango_layout_iter_get_line_extents pango_layout_iter_get_layout_extents PangoLayoutLine PangoLayoutRun pango_layout_line_ref pango_layout_line_unref pango_layout_line_get_extents pango_layout_line_get_pixel_extents pango_layout_line_index_to_x pango_layout_line_x_to_index pango_layout_line_get_x_ranges pango_layout_line_get_height PANGO_TYPE_WRAP_MODE PANGO_TYPE_ELLIPSIZE_MODE PANGO_TYPE_ALIGNMENT PANGO_TYPE_LAYOUT PangoLayoutClass PANGO_LAYOUT PANGO_IS_LAYOUT PANGO_LAYOUT_CLASS PANGO_IS_LAYOUT_CLASS PANGO_LAYOUT_GET_CLASS PANGO_TYPE_LAYOUT_ITER PANGO_TYPE_LAYOUT_LINE pango_layout_get_type pango_layout_iter_get_type pango_layout_line_get_type pango_alignment_get_type pango_wrap_mode_get_type pango_ellipsize_mode_get_type
Scripts and Languages scripts PangoScript PangoScriptIter pango_script_for_unichar pango_script_get_sample_language pango_script_iter_new pango_script_iter_get_range pango_script_iter_next pango_script_iter_free PangoLanguage pango_language_from_string pango_language_to_string pango_language_matches pango_language_includes_script pango_language_get_scripts pango_language_get_default pango_language_get_preferred pango_language_get_sample_string PANGO_TYPE_LANGUAGE PANGO_TYPE_SCRIPT pango_script_get_type pango_language_get_type
Engines engines PangoEngineInfo PangoEngineScriptInfo PangoEngine PangoEngineClass script_engine_list script_engine_init script_engine_exit script_engine_create PANGO_ENGINE PANGO_IS_ENGINE PANGO_TYPE_ENGINE PANGO_ENGINE_CLASS PANGO_IS_ENGINE_CLASS PANGO_ENGINE_GET_CLASS pango_engine_get_type PANGO_MODULE_ENTRY PANGO_ENGINE_DEFINE_TYPE
PangoEngineLang pango-engine-lang PangoEngineLang PangoEngineLangClass PANGO_ENGINE_TYPE_LANG PANGO_ENGINE_LANG_DEFINE_TYPE PANGO_ENGINE_LANG PANGO_IS_ENGINE_LANG PANGO_TYPE_ENGINE_LANG PANGO_ENGINE_LANG_CLASS PANGO_IS_ENGINE_LANG_CLASS PANGO_ENGINE_LANG_GET_CLASS pango_engine_lang_get_type
PangoEngineShape pango-engine-shape PangoEngineShape PangoEngineShapeClass PANGO_ENGINE_TYPE_SHAPE PANGO_ENGINE_SHAPE_DEFINE_TYPE PANGO_ENGINE_SHAPE PANGO_IS_ENGINE_SHAPE PANGO_TYPE_ENGINE_SHAPE PANGO_ENGINE_SHAPE_CLASS PANGO_IS_ENGINE_SHAPE_CLASS PANGO_ENGINE_SHAPE_GET_CLASS pango_engine_shape_get_type
Modules modules PangoIncludedModule PangoMap PangoMapEntry pango_find_map pango_map_get_engine pango_map_get_engines pango_module_register
pango-renderer PangoRenderer PangoRenderPart PANGO_TYPE_RENDER_PART PangoRendererClass PangoRenderer pango_renderer_draw_layout pango_renderer_draw_layout_line pango_renderer_draw_glyphs pango_renderer_draw_glyph_item pango_renderer_draw_rectangle pango_renderer_draw_error_underline pango_renderer_draw_trapezoid pango_renderer_draw_glyph pango_renderer_activate pango_renderer_deactivate pango_renderer_part_changed pango_renderer_set_color pango_renderer_get_color pango_renderer_set_alpha pango_renderer_get_alpha pango_renderer_set_matrix pango_renderer_get_matrix pango_renderer_get_layout pango_renderer_get_layout_line PANGO_RENDERER PANGO_IS_RENDERER PANGO_TYPE_RENDERER pango_renderer_get_type PANGO_RENDERER_CLASS PANGO_IS_RENDERER_CLASS PANGO_RENDERER_GET_CLASS pango_render_part_get_type PangoRendererPrivate
Win32 Fonts and Rendering win32-fonts pango_win32_get_context pango_win32_render pango_win32_render_transformed pango_win32_render_layout_line pango_win32_render_layout pango_win32_get_unknown_glyph pango_win32_font_get_glyph_index pango_win32_font_select_font pango_win32_font_done_font pango_win32_font_get_metrics_factor pango_win32_get_debug_flag pango_win32_get_dc PangoWin32FontCache pango_win32_font_cache_new pango_win32_font_cache_free pango_win32_font_cache_load pango_win32_font_cache_loadw pango_win32_font_cache_unload pango_win32_font_map_for_display pango_win32_shutdown_display pango_win32_font_map_get_font_cache pango_win32_font_logfont pango_win32_font_logfontw pango_win32_font_description_from_logfont pango_win32_font_description_from_logfontw STRICT
FreeType Fonts and Rendering freetype-fonts PangoFT2FontMap pango_ft2_font_map_new pango_ft2_font_map_set_resolution pango_ft2_font_map_create_context PangoFT2SubstituteFunc pango_ft2_font_map_set_default_substitute pango_ft2_font_map_substitute_changed pango_ft2_get_context pango_ft2_render pango_ft2_render_transformed pango_ft2_render_layout_line pango_ft2_render_layout_line_subpixel pango_ft2_render_layout pango_ft2_render_layout_subpixel pango_ft2_get_unknown_glyph pango_ft2_font_get_kerning pango_ft2_font_get_face pango_ft2_font_get_coverage pango_ft2_font_map_for_display pango_ft2_shutdown_display PANGO_TYPE_FT2_FONT_MAP PANGO_FT2_FONT_MAP PANGO_FT2_IS_FONT_MAP pango_ft2_font_map_get_type STRICT
Xft Fonts and Rendering xft-fonts PangoXftFont PangoXftFontMap pango_xft_get_context pango_xft_get_font_map pango_xft_set_default_substitute PangoXftSubstituteFunc pango_xft_substitute_changed pango_xft_shutdown_display pango_xft_font_get_font pango_xft_font_get_display pango_xft_font_has_char pango_xft_font_lock_face pango_xft_font_unlock_face pango_xft_font_get_glyph pango_xft_font_get_unknown_glyph PangoXftRenderer PangoXftRendererClass pango_xft_renderer_new pango_xft_renderer_set_draw pango_xft_renderer_set_default_color pango_xft_render pango_xft_picture_render pango_xft_render_transformed pango_xft_render_layout_line pango_xft_render_layout PANGO_TYPE_XFT_FONT PANGO_XFT_FONT PANGO_XFT_IS_FONT PANGO_TYPE_XFT_FONT_MAP PANGO_XFT_FONT_MAP PANGO_XFT_IS_FONT_MAP PANGO_XFT_RENDERER PANGO_IS_XFT_RENDERER PANGO_TYPE_XFT_RENDERER PANGO_XFT_RENDERER_CLASS PANGO_IS_XFT_RENDERER_CLASS PANGO_XFT_RENDERER_GET_CLASS PangoXftRendererPrivate pango_xft_font_get_type pango_xft_font_map_get_type pango_xft_renderer_get_type
Cairo Rendering pangocairo PangoCairoFont PangoCairoFontMap pango_cairo_font_map_get_default pango_cairo_font_map_set_default pango_cairo_font_map_new pango_cairo_font_map_new_for_font_type pango_cairo_font_map_get_font_type pango_cairo_font_map_set_resolution pango_cairo_font_map_get_resolution pango_cairo_font_map_create_context pango_cairo_font_get_scaled_font pango_cairo_context_set_resolution pango_cairo_context_get_resolution pango_cairo_context_set_font_options pango_cairo_context_get_font_options PangoCairoShapeRendererFunc pango_cairo_context_set_shape_renderer pango_cairo_context_get_shape_renderer pango_cairo_create_context pango_cairo_update_context pango_cairo_create_layout pango_cairo_update_layout pango_cairo_show_glyph_string pango_cairo_show_glyph_item pango_cairo_show_layout_line pango_cairo_show_layout pango_cairo_show_error_underline pango_cairo_glyph_string_path pango_cairo_layout_line_path pango_cairo_layout_path pango_cairo_error_underline_path PANGO_CAIRO_FONT PANGO_CAIRO_FONT_MAP PANGO_IS_CAIRO_FONT PANGO_IS_CAIRO_FONT_MAP PANGO_TYPE_CAIRO_FONT PANGO_TYPE_CAIRO_FONT_MAP pango_cairo_font_get_type pango_cairo_font_map_get_type
CoreText Fonts coretext-fonts pango_core_text_font_get_ctfont PANGO_CAIRO_CORE_TEXT_FONT PANGO_CAIRO_CORE_TEXT_FONT_CLASS PANGO_CAIRO_CORE_TEXT_FONT_GET_CLASS PANGO_CAIRO_CORE_TEXT_FONT_MAP PANGO_CORE_TEXT_FONT PANGO_CORE_TEXT_FONT_CLASS PANGO_CORE_TEXT_FONT_GET_CLASS PANGO_CORE_TEXT_FONT_MAP PANGO_CORE_TEXT_FONT_MAP_CLASS PANGO_CORE_TEXT_FONT_MAP_GET_CLASS PANGO_CORE_TEXT_IS_FONT_MAP PANGO_IS_CAIRO_CORE_TEXT_FONT_CLASS PANGO_IS_CAIRO_CORE_TEXT_FONT_MAP PANGO_IS_CORE_TEXT_FONT PANGO_IS_CORE_TEXT_FONT_CLASS PANGO_IS_CORE_TEXT_FONT_MAP_CLASS PANGO_TYPE_CAIRO_CORE_TEXT_FONT PANGO_TYPE_CAIRO_CORE_TEXT_FONT_MAP PANGO_TYPE_CORE_TEXT_FONT PANGO_TYPE_CORE_TEXT_FONT_MAP PangoCairoCoreTextFont PangoCairoCoreTextFontClass PangoCairoCoreTextFontMap PangoCoreTextFace PangoCoreTextFamily PangoCoreTextFont PangoCoreTextFontClass PangoCoreTextFontMap PangoCoreTextFontMapClass PangoCoreTextFontPrivate pango_cairo_core_text_font_get_type pango_cairo_core_text_font_map_get_type pango_core_text_font_get_type pango_core_text_font_map_get_type
pangofc-fontmap PangoFcFontMap PangoFcFontMap PangoFcFontMapClass pango_fc_font_map_create_context PangoFcDecoderFindFunc pango_fc_font_map_add_decoder_find_func pango_fc_font_map_find_decoder pango_fc_font_map_cache_clear pango_fc_font_map_config_changed pango_fc_font_map_shutdown pango_fc_font_map_set_config pango_fc_font_map_get_config PangoFcSubstituteFunc pango_fc_font_map_set_default_substitute pango_fc_font_map_substitute_changed pango_fc_font_description_from_pattern PANGO_FC_FONT_FEATURES PANGO_FC_GRAVITY PANGO_FC_VERSION PANGO_FC_PRGNAME PANGO_FC_FONT_VARIATIONS PANGO_FC_FONT_MAP PANGO_IS_FC_FONT_MAP PANGO_TYPE_FC_FONT_MAP PANGO_FC_FONT_MAP_CLASS PANGO_IS_FC_FONT_MAP_CLASS PANGO_FC_FONT_MAP_GET_CLASS PangoFcFontMapPrivate pango_fc_font_map_get_type
pangofc-font PangoFcFont PangoFcFont PangoFcFontClass pango_fc_font_lock_face pango_fc_font_unlock_face pango_fc_font_has_char pango_fc_font_get_glyph pango_fc_font_get_unknown_glyph pango_fc_font_kern_glyphs pango_fc_font_get_languages pango_fc_font_get_pattern PANGO_FC_FONT PANGO_IS_FC_FONT PANGO_TYPE_FC_FONT PANGO_FC_FONT_CLASS PANGO_IS_FC_FONT_CLASS PANGO_FC_FONT_GET_CLASS pango_fc_font_get_type
pangofc-decoder PangoFcDecoder PangoFcDecoder PangoFcDecoderClass pango_fc_decoder_get_charset pango_fc_decoder_get_glyph PANGO_FC_DECODER PANGO_IS_FC_DECODER PANGO_TYPE_FC_DECODER pango_fc_decoder_get_type PANGO_FC_DECODER_CLASS PANGO_IS_FC_DECODER_CLASS PANGO_FC_DECODER_GET_CLASS
OpenType Font Handling opentype PangoOTTag PangoOTInfo PangoOTBuffer PangoOTGlyph PangoOTRuleset PangoOTRulesetDescription PangoOTTableType PangoOTFeatureMap PANGO_OT_TAG_MAKE PANGO_OT_TAG_MAKE_FROM_STRING PANGO_OT_ALL_GLYPHS PANGO_OT_NO_FEATURE PANGO_OT_NO_SCRIPT PANGO_OT_DEFAULT_LANGUAGE PANGO_OT_TAG_DEFAULT_LANGUAGE PANGO_OT_TAG_DEFAULT_SCRIPT pango_ot_info_get pango_ot_info_find_script pango_ot_info_find_language pango_ot_info_find_feature pango_ot_info_list_scripts pango_ot_info_list_languages pango_ot_info_list_features pango_ot_buffer_new pango_ot_buffer_destroy pango_ot_buffer_clear pango_ot_buffer_add_glyph pango_ot_buffer_set_rtl pango_ot_buffer_set_zero_width_marks pango_ot_buffer_get_glyphs pango_ot_buffer_output pango_ot_ruleset_get_for_description pango_ot_ruleset_new pango_ot_ruleset_new_for pango_ot_ruleset_new_from_description pango_ot_ruleset_add_feature pango_ot_ruleset_maybe_add_feature pango_ot_ruleset_maybe_add_features pango_ot_ruleset_get_feature_count pango_ot_ruleset_substitute pango_ot_ruleset_position pango_ot_ruleset_description_copy pango_ot_ruleset_description_equal pango_ot_ruleset_description_free pango_ot_ruleset_description_hash pango_ot_tag_from_language pango_ot_tag_from_script pango_ot_tag_to_language pango_ot_tag_to_script PANGO_IS_OT_INFO PANGO_IS_OT_RULESET PANGO_OT_INFO PANGO_OT_RULESET PANGO_TYPE_OT_INFO PANGO_TYPE_OT_RULESET pango_ot_info_get_type pango_ot_ruleset_get_type
Miscellaneous Utilities utils pango_split_file_list pango_trim_string pango_read_line pango_skip_space pango_scan_word pango_scan_string pango_scan_int pango_parse_enum pango_parse_style pango_parse_variant pango_parse_weight pango_parse_stretch pango_log2vis_get_embedding_levels pango_is_zero_width pango_quantize_line_geometry
Version Checking pango-version PANGO_VERSION_ENCODE PANGO_VERSION PANGO_VERSION_MAJOR PANGO_VERSION_MINOR PANGO_VERSION_MICRO PANGO_VERSION_STRING PANGO_VERSION_CHECK pango_version pango_version_string pango_version_check PANGO_VERSION_1_2 PANGO_VERSION_1_4 PANGO_VERSION_1_6 PANGO_VERSION_1_8 PANGO_VERSION_1_10 PANGO_VERSION_1_12 PANGO_VERSION_1_14 PANGO_VERSION_1_16 PANGO_VERSION_1_18 PANGO_VERSION_1_20 PANGO_VERSION_1_22 PANGO_VERSION_1_24 PANGO_VERSION_1_26 PANGO_VERSION_1_28 PANGO_VERSION_1_30 PANGO_VERSION_1_32 PANGO_VERSION_1_34 PANGO_VERSION_1_36 PANGO_VERSION_1_38 PANGO_VERSION_1_40 PANGO_VERSION_1_42 PANGO_VERSION_1_44 PANGO_VERSION_MIN_REQUIRED PANGO_VERSION_MAX_ALLOWED PANGO_UNAVAILABLE PANGO_AVAILABLE_IN_ALL PANGO_VERSION_CUR_STABLE PANGO_VERSION_PREV_STABLE PANGO_AVAILABLE_IN_1_2 PANGO_AVAILABLE_IN_1_4 PANGO_AVAILABLE_IN_1_6 PANGO_AVAILABLE_IN_1_8 PANGO_AVAILABLE_IN_1_10 PANGO_AVAILABLE_IN_1_12 PANGO_AVAILABLE_IN_1_14 PANGO_AVAILABLE_IN_1_16 PANGO_AVAILABLE_IN_1_18 PANGO_AVAILABLE_IN_1_20 PANGO_AVAILABLE_IN_1_22 PANGO_AVAILABLE_IN_1_24 PANGO_AVAILABLE_IN_1_26 PANGO_AVAILABLE_IN_1_28 PANGO_AVAILABLE_IN_1_30 PANGO_AVAILABLE_IN_1_32 PANGO_AVAILABLE_IN_1_34 PANGO_AVAILABLE_IN_1_36 PANGO_AVAILABLE_IN_1_38 PANGO_AVAILABLE_IN_1_40 PANGO_AVAILABLE_IN_1_42 PANGO_AVAILABLE_IN_1_44 PANGO_DEPRECATED PANGO_DEPRECATED_FOR PANGO_DEPRECATED_IN_1_2 PANGO_DEPRECATED_IN_1_2_FOR PANGO_DEPRECATED_IN_1_4 PANGO_DEPRECATED_IN_1_4_FOR PANGO_DEPRECATED_IN_1_6 PANGO_DEPRECATED_IN_1_6_FOR PANGO_DEPRECATED_IN_1_8 PANGO_DEPRECATED_IN_1_8_FOR PANGO_DEPRECATED_IN_1_10 PANGO_DEPRECATED_IN_1_10_FOR PANGO_DEPRECATED_IN_1_12 PANGO_DEPRECATED_IN_1_12_FOR PANGO_DEPRECATED_IN_1_14 PANGO_DEPRECATED_IN_1_14_FOR PANGO_DEPRECATED_IN_1_16 PANGO_DEPRECATED_IN_1_16_FOR PANGO_DEPRECATED_IN_1_18 PANGO_DEPRECATED_IN_1_18_FOR PANGO_DEPRECATED_IN_1_20 PANGO_DEPRECATED_IN_1_20_FOR PANGO_DEPRECATED_IN_1_22 PANGO_DEPRECATED_IN_1_22_FOR PANGO_DEPRECATED_IN_1_24 PANGO_DEPRECATED_IN_1_24_FOR PANGO_DEPRECATED_IN_1_26 PANGO_DEPRECATED_IN_1_26_FOR PANGO_DEPRECATED_IN_1_28 PANGO_DEPRECATED_IN_1_28_FOR PANGO_DEPRECATED_IN_1_30 PANGO_DEPRECATED_IN_1_30_FOR PANGO_DEPRECATED_IN_1_32 PANGO_DEPRECATED_IN_1_32_FOR PANGO_DEPRECATED_IN_1_34 PANGO_DEPRECATED_IN_1_34_FOR PANGO_DEPRECATED_IN_1_36 PANGO_DEPRECATED_IN_1_36_FOR PANGO_DEPRECATED_IN_1_38 PANGO_DEPRECATED_IN_1_38_FOR PANGO_DEPRECATED_IN_1_40 PANGO_DEPRECATED_IN_1_40_FOR PANGO_DEPRECATED_IN_1_42 PANGO_DEPRECATED_IN_1_42_FOR PANGO_DEPRECATED_IN_1_44 PANGO_DEPRECATED_IN_1_44_FOR
Vertical Text vertical PangoGravity PangoGravityHint PANGO_GRAVITY_IS_IMPROPER PANGO_GRAVITY_IS_VERTICAL pango_gravity_get_for_matrix pango_gravity_get_for_script pango_gravity_get_for_script_and_width pango_gravity_to_rotation PANGO_TYPE_GRAVITY PANGO_TYPE_GRAVITY_HINT pango_gravity_get_type pango_gravity_hint_get_type
Bidirectional Text bidi PangoDirection pango_unichar_direction pango_find_base_dir pango_get_mirror_char PangoBidiType pango_bidi_type_for_unichar PANGO_TYPE_BIDI_TYPE pango_bidi_type_get_type pango_direction_get_type
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Attributes

Attributes — Font and other attributes for annotating text

Functions

PangoAttrType pango_attr_type_register ()
const char * pango_attr_type_get_name ()
void pango_attribute_init ()
PangoAttribute * pango_attribute_copy ()
gboolean pango_attribute_equal ()
void pango_attribute_destroy ()
PangoAttribute * pango_attr_language_new ()
PangoAttribute * pango_attr_family_new ()
PangoAttribute * pango_attr_style_new ()
PangoAttribute * pango_attr_variant_new ()
PangoAttribute * pango_attr_stretch_new ()
PangoAttribute * pango_attr_weight_new ()
PangoAttribute * pango_attr_size_new ()
PangoAttribute * pango_attr_size_new_absolute ()
PangoAttribute * pango_attr_font_desc_new ()
PangoAttribute * pango_attr_foreground_new ()
PangoAttribute * pango_attr_background_new ()
PangoAttribute * pango_attr_strikethrough_new ()
PangoAttribute * pango_attr_strikethrough_color_new ()
PangoAttribute * pango_attr_underline_new ()
PangoAttribute * pango_attr_underline_color_new ()
PangoAttribute * pango_attr_overline_new ()
PangoAttribute * pango_attr_overline_color_new ()
PangoAttribute * pango_attr_shape_new ()
PangoAttribute * pango_attr_shape_new_with_data ()
gpointer (*PangoAttrDataCopyFunc) ()
PangoAttribute * pango_attr_scale_new ()
PangoAttribute * pango_attr_rise_new ()
PangoAttribute * pango_attr_letter_spacing_new ()
PangoAttribute * pango_attr_fallback_new ()
PangoAttribute * pango_attr_gravity_new ()
PangoAttribute * pango_attr_gravity_hint_new ()
PangoAttribute * pango_attr_font_features_new ()
PangoAttribute * pango_attr_foreground_alpha_new ()
PangoAttribute * pango_attr_background_alpha_new ()
PangoAttribute * pango_attr_allow_breaks_new ()
PangoAttribute * pango_attr_insert_hyphens_new ()
PangoAttribute * pango_attr_show_new ()
gboolean pango_color_parse ()
gboolean pango_color_parse_with_alpha ()
PangoColor * pango_color_copy ()
void pango_color_free ()
gchar * pango_color_to_string ()
PangoAttrList * pango_attr_list_new ()
PangoAttrList * pango_attr_list_ref ()
void pango_attr_list_unref ()
PangoAttrList * pango_attr_list_copy ()
void pango_attr_list_insert ()
void pango_attr_list_insert_before ()
void pango_attr_list_change ()
void pango_attr_list_splice ()
PangoAttrList * pango_attr_list_filter ()
void pango_attr_list_update ()
gboolean (*PangoAttrFilterFunc) ()
GSList * pango_attr_list_get_attributes ()
gboolean pango_attr_list_equal ()
PangoAttrIterator * pango_attr_list_get_iterator ()
PangoAttrIterator * pango_attr_iterator_copy ()
gboolean pango_attr_iterator_next ()
void pango_attr_iterator_range ()
PangoAttribute * pango_attr_iterator_get ()
void pango_attr_iterator_get_font ()
GSList * pango_attr_iterator_get_attrs ()
void pango_attr_iterator_destroy ()

Types and Values

enum PangoAttrType
struct PangoAttrClass
struct PangoAttribute
#define PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING
#define PANGO_ATTR_INDEX_TO_TEXT_END
struct PangoAttrString
struct PangoAttrLanguage
struct PangoAttrColor
struct PangoAttrInt
struct PangoAttrFloat
struct PangoAttrFontDesc
struct PangoAttrShape
struct PangoAttrSize
struct PangoAttrFontFeatures
enum PangoUnderline
enum PangoOverline
#define PANGO_SCALE_XX_SMALL
#define PANGO_SCALE_X_SMALL
#define PANGO_SCALE_SMALL
#define PANGO_SCALE_MEDIUM
#define PANGO_SCALE_LARGE
#define PANGO_SCALE_X_LARGE
#define PANGO_SCALE_XX_LARGE
enum PangoShowFlags
struct PangoColor
  PangoAttrList
  PangoAttrIterator

Object Hierarchy

    GBoxed
    ├── PangoAttrIterator
    ├── PangoAttrList
    ├── PangoAttribute
    ╰── PangoColor
    GEnum
    ├── PangoAttrType
    ╰── PangoUnderline
    GFlags
    ╰── PangoShowFlags

Description

Attributed text is used in a number of places in Pango. It is used as the input to the itemization process and also when creating a PangoLayout. The data types and functions in this section are used to represent and manipulate sets of attributes applied to a portion of text.

Functions

pango_attr_type_register ()

PangoAttrType
pango_attr_type_register (const gchar *name);

Allocate a new attribute type ID. The attribute type name can be accessed later by using pango_attr_type_get_name().

Parameters

name

an identifier for the type

  

Returns

the new type ID.

pango_attr_type_get_name ()

const char *
pango_attr_type_get_name (PangoAttrType type);

Fetches the attribute type name passed in when registering the type using pango_attr_type_register().

The returned value is an interned string (see g_intern_string() for what that means) that should not be modified or freed.

Parameters

type

an attribute type ID to fetch the name for

  

Returns

the type ID name (which may be NULL), or NULL if type is a built-in Pango attribute type or invalid.

[nullable]

Since: 1.22

pango_attribute_init ()

void
pango_attribute_init (PangoAttribute *attr,
                      const PangoAttrClass *klass);

Initializes attr 's klass to klass , it's start_index to PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING and end_index to PANGO_ATTR_INDEX_TO_TEXT_END such that the attribute applies to the entire text by default.

Parameters

attr

a PangoAttribute

  

klass

a PangoAttrClass

  

Since: 1.20

pango_attribute_copy ()

PangoAttribute *
pango_attribute_copy (const PangoAttribute *attr);

Make a copy of an attribute.

Parameters

attr

a PangoAttribute

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attribute_equal ()

gboolean
pango_attribute_equal (const PangoAttribute *attr1,
                       const PangoAttribute *attr2);

Compare two attributes for equality. This compares only the actual value of the two attributes and not the ranges that the attributes apply to.

Parameters

attr1

a PangoAttribute

  

attr2

another PangoAttribute

  

Returns

TRUE if the two attributes have the same value.

pango_attribute_destroy ()

void
pango_attribute_destroy (PangoAttribute *attr);

Destroy a PangoAttribute and free all associated memory.

Parameters

attr

a PangoAttribute.

  

pango_attr_language_new ()

PangoAttribute *
pango_attr_language_new (PangoLanguage *language);

Create a new language tag attribute.

Parameters

language

language tag

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_family_new ()

PangoAttribute *
pango_attr_family_new (const char *family);

Create a new font family attribute.

Parameters

family

the family or comma separated list of families

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_style_new ()

PangoAttribute *
pango_attr_style_new (PangoStyle style);

Create a new font slant style attribute.

Parameters

style

the slant style

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_variant_new ()

PangoAttribute *
pango_attr_variant_new (PangoVariant variant);

Create a new font variant attribute (normal or small caps)

Parameters

variant

the variant

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_stretch_new ()

PangoAttribute *
pango_attr_stretch_new (PangoStretch stretch);

Create a new font stretch attribute

Parameters

stretch

the stretch

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_weight_new ()

PangoAttribute *
pango_attr_weight_new (PangoWeight weight);

Create a new font weight attribute.

Parameters

weight

the weight

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_size_new ()

PangoAttribute *
pango_attr_size_new (int size);

Create a new font-size attribute in fractional points.

Parameters

size

the font size, in PANGO_SCALEths of a point.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_size_new_absolute ()

PangoAttribute *
pango_attr_size_new_absolute (int size);

Create a new font-size attribute in device units.

Parameters

size

the font size, in PANGO_SCALEths of a device unit.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

Since: 1.8

pango_attr_font_desc_new ()

PangoAttribute *
pango_attr_font_desc_new (const PangoFontDescription *desc);

Create a new font description attribute. This attribute allows setting family, style, weight, variant, stretch, and size simultaneously.

Parameters

desc

the font description

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_foreground_new ()

PangoAttribute *
pango_attr_foreground_new (guint16 red,
                           guint16 green,
                           guint16 blue);

Create a new foreground color attribute.

Parameters

red

the red value (ranging from 0 to 65535)

  

green

the green value

  

blue

the blue value

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_background_new ()

PangoAttribute *
pango_attr_background_new (guint16 red,
                           guint16 green,
                           guint16 blue);

Create a new background color attribute.

Parameters

red

the red value (ranging from 0 to 65535)

  

green

the green value

  

blue

the blue value

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_strikethrough_new ()

PangoAttribute *
pango_attr_strikethrough_new (gboolean strikethrough);

Create a new strike-through attribute.

Parameters

strikethrough

TRUE if the text should be struck-through.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_strikethrough_color_new ()

PangoAttribute *
pango_attr_strikethrough_color_new (guint16 red,
                                    guint16 green,
                                    guint16 blue);

Create a new strikethrough color attribute. This attribute modifies the color of strikethrough lines. If not set, strikethrough lines will use the foreground color.

Parameters

red

the red value (ranging from 0 to 65535)

  

green

the green value

  

blue

the blue value

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.8

pango_attr_underline_new ()

PangoAttribute *
pango_attr_underline_new (PangoUnderline underline);

Create a new underline-style attribute.

Parameters

underline

the underline style.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_underline_color_new ()

PangoAttribute *
pango_attr_underline_color_new (guint16 red,
                                guint16 green,
                                guint16 blue);

Create a new underline color attribute. This attribute modifies the color of underlines. If not set, underlines will use the foreground color.

Parameters

red

the red value (ranging from 0 to 65535)

  

green

the green value

  

blue

the blue value

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.8

pango_attr_overline_new ()

PangoAttribute *
pango_attr_overline_new (PangoOverline overline);

Create a new overline-style attribute.

Parameters

overline

the overline style

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.46

pango_attr_overline_color_new ()

PangoAttribute *
pango_attr_overline_color_new (guint16 red,
                               guint16 green,
                               guint16 blue);

Create a new overline color attribute. This attribute modifies the color of overlines. If not set, overlines will use the foreground color.

Parameters

red

the red value (ranging from 0 to 65535)

  

green

the green value

  

blue

the blue value

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.46

pango_attr_shape_new ()

PangoAttribute *
pango_attr_shape_new (const PangoRectangle *ink_rect,
                      const PangoRectangle *logical_rect);

Create a new shape attribute. A shape is used to impose a particular ink and logical rectangle on the result of shaping a particular glyph. This might be used, for instance, for embedding a picture or a widget inside a PangoLayout.

Parameters

ink_rect

ink rectangle to assign to each character

  

logical_rect

logical rectangle to assign to each character

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_shape_new_with_data ()

PangoAttribute *
pango_attr_shape_new_with_data (const PangoRectangle *ink_rect,
                                const PangoRectangle *logical_rect,
                                gpointer data,
                                PangoAttrDataCopyFunc copy_func,
                                GDestroyNotify destroy_func);

Like pango_attr_shape_new(), but a user data pointer is also provided; this pointer can be accessed when later rendering the glyph.

Parameters

ink_rect

ink rectangle to assign to each character

  

logical_rect

logical rectangle to assign to each character

  

data

user data pointer

  

copy_func

function to copy data when the attribute is copied. If NULL, data is simply copied as a pointer.

[allow-none]

destroy_func

function to free data when the attribute is freed, or NULL.

[allow-none]

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

Since: 1.8

PangoAttrDataCopyFunc ()

gpointer
(*PangoAttrDataCopyFunc) (gconstpointer user_data);

Type of a function that can duplicate user data for an attribute.

Parameters

user_data

user data to copy

  

Returns

new copy of user_data .

pango_attr_scale_new ()

PangoAttribute *
pango_attr_scale_new (double scale_factor);

Create a new font size scale attribute. The base font for the affected text will have its size multiplied by scale_factor .

Parameters

scale_factor

factor to scale the font

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_rise_new ()

PangoAttribute *
pango_attr_rise_new (int rise);

Create a new baseline displacement attribute.

Parameters

rise

the amount that the text should be displaced vertically, in Pango units. Positive values displace the text upwards.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

pango_attr_letter_spacing_new ()

PangoAttribute *
pango_attr_letter_spacing_new (int letter_spacing);

Create a new letter-spacing attribute.

Parameters

letter_spacing

amount of extra space to add between graphemes of the text, in Pango units.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.6

pango_attr_fallback_new ()

PangoAttribute *
pango_attr_fallback_new (gboolean enable_fallback);

Create a new font fallback attribute.

If fallback is disabled, characters will only be used from the closest matching font on the system. No fallback will be done to other fonts on the system that might contain the characters in the text.

Parameters

enable_fallback

TRUE if we should fall back on other fonts for characters the active font is missing.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.4

pango_attr_gravity_new ()

PangoAttribute *
pango_attr_gravity_new (PangoGravity gravity);

Create a new gravity attribute.

Parameters

gravity

the gravity value; should not be PANGO_GRAVITY_AUTO.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.16

pango_attr_gravity_hint_new ()

PangoAttribute *
pango_attr_gravity_hint_new (PangoGravityHint hint);

Create a new gravity hint attribute.

Parameters

hint

the gravity hint value.

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.16

pango_attr_font_features_new ()

PangoAttribute *
pango_attr_font_features_new (const gchar *features);

Create a new font features tag attribute.

Parameters

features

a string with OpenType font features, in CSS syntax

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.38

pango_attr_foreground_alpha_new ()

PangoAttribute *
pango_attr_foreground_alpha_new (guint16 alpha);

Create a new foreground alpha attribute.

Parameters

alpha

the alpha value, between 1 and 65536

  

Returns

the new allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.38

pango_attr_background_alpha_new ()

PangoAttribute *
pango_attr_background_alpha_new (guint16 alpha);

Create a new background alpha attribute.

Parameters

alpha

the alpha value, between 1 and 65536

  

Returns

the new allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.38

pango_attr_allow_breaks_new ()

PangoAttribute *
pango_attr_allow_breaks_new (gboolean allow_breaks);

Create a new allow-breaks attribute.

If breaks are disabled, the range will be kept in a single run, as far as possible.

Parameters

allow_breaks

TRUE if we line breaks are allowed

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.44

pango_attr_insert_hyphens_new ()

PangoAttribute *
pango_attr_insert_hyphens_new (gboolean insert_hyphens);

Create a new insert-hyphens attribute.

Pango will insert hyphens when breaking lines in the middle of a word. This attribute can be used to suppress the hyphen.

Parameters

insert_hyphens

TRUE if hyphens should be inserted

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.44

pango_attr_show_new ()

PangoAttribute *
pango_attr_show_new (PangoShowFlags flags);

Create a new attribute that influences how invisible characters are rendered.

Parameters

flags

PangoShowFlags to apply

  

Returns

the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().

[transfer full]

Since: 1.44

pango_color_parse ()

gboolean
pango_color_parse (PangoColor *color,
                   const char *spec);

Fill in the fields of a color from a string specification. The string can either one of a large set of standard names. (Taken from the CSS specification), or it can be a hexadecimal value in the form '#rgb' '#rrggbb' '#rrrgggbbb' or '#rrrrggggbbbb' where 'r', 'g' and 'b' are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is '#fff' '#ffffff' '#fffffffff' and '#ffffffffffff')

Parameters

color

a PangoColor structure in which to store the result, or NULL.

[nullable]

spec

a string specifying the new color

  

Returns

TRUE if parsing of the specifier succeeded, otherwise false.

pango_color_parse_with_alpha ()

gboolean
pango_color_parse_with_alpha (PangoColor *color,
                              guint16 *alpha,
                              const char *spec);

Fill in the fields of a color from a string specification. The string can either one of a large set of standard names. (Taken from the CSS specification), or it can be a hexadecimal value in the form '#rgb' '#rrggbb' '#rrrgggbbb' or '#rrrrggggbbbb' where 'r', 'g' and 'b' are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is '#fff' '#ffffff' '#fffffffff' and '#ffffffffffff')

Additionally, parse strings of the form '#rgba', '#rrggbbaa', '#rrrrggggbbbbaaaa', if alpha is not NULL, and set alpha to the value specified by the hex digits for 'a'. If no alpha component is found in spec , alpha is set to 0xffff (for a solid color).

Parameters

color

a PangoColor structure in which to store the result, or NULL.

[nullable]

alpha

return location for alpha, or NULL.

[out][optional]

spec

a string specifying the new color

  

Returns

TRUE if parsing of the specifier succeeded, otherwise false.

Since: 1.46

pango_color_copy ()

PangoColor *
pango_color_copy (const PangoColor *src);

Creates a copy of src , which should be freed with pango_color_free(). Primarily used by language bindings, not that useful otherwise (since colors can just be copied by assignment in C).

Parameters

src

color to copy, may be NULL.

[nullable]

Returns

the newly allocated PangoColor, which should be freed with pango_color_free(), or NULL if src was NULL.

[nullable]

pango_color_free ()

void
pango_color_free (PangoColor *color);

Frees a color allocated by pango_color_copy().

Parameters

color

an allocated PangoColor, may be NULL.

[nullable]

pango_color_to_string ()

gchar *
pango_color_to_string (const PangoColor *color);

Returns a textual specification of color in the hexadecimal form #rrrrggggbbbb, where r, g and b are hex digits representing the red, green, and blue components respectively.

Parameters

color

a PangoColor

  

Returns

a newly-allocated text string that must be freed with g_free().

Since: 1.16

pango_attr_list_new ()

PangoAttrList *
pango_attr_list_new (void);

Create a new empty attribute list with a reference count of one.

Returns

the newly allocated PangoAttrList, which should be freed with pango_attr_list_unref().

[transfer full]

pango_attr_list_ref ()

PangoAttrList *
pango_attr_list_ref (PangoAttrList *list);

Increase the reference count of the given attribute list by one.

Parameters

list

a PangoAttrList, may be NULL.

[nullable]

Returns

The attribute list passed in

Since: 1.10

pango_attr_list_unref ()

void
pango_attr_list_unref (PangoAttrList *list);

Decrease the reference count of the given attribute list by one. If the result is zero, free the attribute list and the attributes it contains.

Parameters

list

a PangoAttrList, may be NULL.

[nullable]

pango_attr_list_copy ()

PangoAttrList *
pango_attr_list_copy (PangoAttrList *list);

Copy list and return an identical new list.

Parameters

list

a PangoAttrList, may be NULL.

[nullable]

Returns

the newly allocated PangoAttrList, with a reference count of one, which should be freed with pango_attr_list_unref(). Returns NULL if list was NULL.

[nullable]

pango_attr_list_insert ()

void
pango_attr_list_insert (PangoAttrList *list,
                        PangoAttribute *attr);

Insert the given attribute into the PangoAttrList. It will be inserted after all other attributes with a matching start_index .

Parameters

list

a PangoAttrList

  

attr

the attribute to insert. Ownership of this value is assumed by the list.

[transfer full]

pango_attr_list_insert_before ()

void
pango_attr_list_insert_before (PangoAttrList *list,
                               PangoAttribute *attr);

Insert the given attribute into the PangoAttrList. It will be inserted before all other attributes with a matching start_index .

Parameters

list

a PangoAttrList

  

attr

the attribute to insert. Ownership of this value is assumed by the list.

[transfer full]

pango_attr_list_change ()

void
pango_attr_list_change (PangoAttrList *list,
                        PangoAttribute *attr);

Insert the given attribute into the PangoAttrList. It will replace any attributes of the same type on that segment and be merged with any adjoining attributes that are identical.

This function is slower than pango_attr_list_insert() for creating an attribute list in order (potentially much slower for large lists). However, pango_attr_list_insert() is not suitable for continually changing a set of attributes since it never removes or combines existing attributes.

Parameters

list

a PangoAttrList

  

attr

the attribute to insert. Ownership of this value is assumed by the list.

[transfer full]

pango_attr_list_splice ()

void
pango_attr_list_splice (PangoAttrList *list,
                        PangoAttrList *other,
                        gint pos,
                        gint len);

This function opens up a hole in list , fills it in with attributes from the left, and then merges other on top of the hole.

This operation is equivalent to stretching every attribute that applies at position pos in list by an amount len , and then calling pango_attr_list_change() with a copy of each attribute in other in sequence (offset in position by pos ).

This operation proves useful for, for instance, inserting a pre-edit string in the middle of an edit buffer.

Parameters

list

a PangoAttrList

  

other

another PangoAttrList

  

pos

the position in list at which to insert other

 

len

the length of the spliced segment. (Note that this must be specified since the attributes in other may only be present at some subsection of this range)

  

pango_attr_list_filter ()

PangoAttrList *
pango_attr_list_filter (PangoAttrList *list,
                        PangoAttrFilterFunc func,
                        gpointer data);

Given a PangoAttrList and callback function, removes any elements of list for which func returns TRUE and inserts them into a new list.

Parameters

list

a PangoAttrList

  

func

callback function; returns TRUE if an attribute should be filtered out.

[scope call][closure data]

data

Data to be passed to func .

[closure]

Returns

the new PangoAttrList or NULL if no attributes of the given types were found.

[transfer full][nullable]

Since: 1.2

pango_attr_list_update ()

void
pango_attr_list_update (PangoAttrList *list,
                        int pos,
                        int remove,
                        int add);

Update indices of attributes in list for a change in the text they refer to.

The change that this function applies is removing remove bytes at position pos and inserting add bytes instead.

Attributes that fall entirely in the (pos , pos + remove ) range are removed.

Attributes that start or end inside the (pos , pos + remove ) range are shortened to reflect the removal.

Attributes start and end positions are updated if they are behind pos + remove .

Parameters

list

a PangoAttrList

  

pos

the position of the change

  

remove

the number of removed bytes

  

add

the number of added bytes

  

Since: 1.44

PangoAttrFilterFunc ()

gboolean
(*PangoAttrFilterFunc) (PangoAttribute *attribute,
                        gpointer user_data);

Type of a function filtering a list of attributes.

Parameters

attribute

a Pango attribute

  

user_data

user data passed to the function

  

Returns

TRUE if the attribute should be selected for filtering, FALSE otherwise.

pango_attr_list_get_attributes ()

GSList *
pango_attr_list_get_attributes (PangoAttrList *list);

Gets a list of all attributes in list .

Parameters

list

a PangoAttrList

  

Returns

a list of all attributes in list . To free this value, call pango_attribute_destroy() on each value and g_slist_free() on the list.

[element-type Pango.Attribute][transfer full]

Since: 1.44

pango_attr_list_equal ()

gboolean
pango_attr_list_equal (PangoAttrList *list,
                       PangoAttrList *other_list);

Checks whether list and other_list contain the same attributes and whether those attributes apply to the same ranges. Beware that this will return wrong values if any list contains duplicates.

Parameters

list

a PangoAttrList

  

other_list

the other PangoAttrList

  

Returns

TRUE if the lists are equal, FALSE if they aren't.

Since: 1.46

pango_attr_list_get_iterator ()

PangoAttrIterator *
pango_attr_list_get_iterator (PangoAttrList *list);

Create a iterator initialized to the beginning of the list. list must not be modified until this iterator is freed.

Parameters

list

a PangoAttrList

  

Returns

the newly allocated PangoAttrIterator, which should be freed with pango_attr_iterator_destroy().

[transfer full]

pango_attr_iterator_copy ()

PangoAttrIterator *
pango_attr_iterator_copy (PangoAttrIterator *iterator);

Copy a PangoAttrIterator

Parameters

iterator

a PangoAttrIterator.

  

Returns

the newly allocated PangoAttrIterator, which should be freed with pango_attr_iterator_destroy().

[transfer full]

pango_attr_iterator_next ()

gboolean
pango_attr_iterator_next (PangoAttrIterator *iterator);

Advance the iterator until the next change of style.

Parameters

iterator

a PangoAttrIterator

  

Returns

FALSE if the iterator is at the end of the list, otherwise TRUE

pango_attr_iterator_range ()

void
pango_attr_iterator_range (PangoAttrIterator *iterator,
                           gint *start,
                           gint *end);

Get the range of the current segment. Note that the stored return values are signed, not unsigned like the values in PangoAttribute. To deal with this API oversight, stored return values that wouldn't fit into a signed integer are clamped to G_MAXINT.

Parameters

iterator

a PangoAttrIterator

  

start

location to store the start of the range.

[out]

end

location to store the end of the range.

[out]

pango_attr_iterator_get ()

PangoAttribute *
pango_attr_iterator_get (PangoAttrIterator *iterator,
                         PangoAttrType type);

Find the current attribute of a particular type at the iterator location. When multiple attributes of the same type overlap, the attribute whose range starts closest to the current location is used.

Parameters

iterator

a PangoAttrIterator

  

type

the type of attribute to find.

  

Returns

the current attribute of the given type, or NULL if no attribute of that type applies to the current location.

[nullable][transfer none]

pango_attr_iterator_get_font ()

void
pango_attr_iterator_get_font (PangoAttrIterator *iterator,
                              PangoFontDescription *desc,
                              PangoLanguage **language,
                              GSList **extra_attrs);

Get the font and other attributes at the current iterator position.

Parameters

iterator

a PangoAttrIterator

  

desc

a PangoFontDescription to fill in with the current values. The family name in this structure will be set using pango_font_description_set_family_static() using values from an attribute in the PangoAttrList associated with the iterator, so if you plan to keep it around, you must call: pango_font_description_set_family (desc, pango_font_description_get_family (desc)).

  

language

if non-NULL, location to store language tag for item, or NULL if none is found.

[allow-none]

extra_attrs

if non-NULL, location in which to store a list of non-font attributes at the the current position; only the highest priority value of each attribute will be added to this list. In order to free this value, you must call pango_attribute_destroy() on each member.

[allow-none][element-type Pango.Attribute][transfer full]

pango_attr_iterator_get_attrs ()

GSList *
pango_attr_iterator_get_attrs (PangoAttrIterator *iterator);

Gets a list of all attributes at the current position of the iterator.

Parameters

iterator

a PangoAttrIterator

  

Returns

a list of all attributes for the current range. To free this value, call pango_attribute_destroy() on each value and g_slist_free() on the list.

[element-type Pango.Attribute][transfer full]

Since: 1.2

pango_attr_iterator_destroy ()

void
pango_attr_iterator_destroy (PangoAttrIterator *iterator);

Destroy a PangoAttrIterator and free all associated memory.

Parameters

iterator

a PangoAttrIterator.

  

Types and Values

enum PangoAttrType

The PangoAttrType distinguishes between different types of attributes. Along with the predefined values, it is possible to allocate additional values for custom attributes using pango_attr_type_register(). The predefined values are given below. The type of structure used to store the attribute is listed in parentheses after the description.

Members

PANGO_ATTR_INVALID

does not happen

  

PANGO_ATTR_LANGUAGE

language (PangoAttrLanguage)

  

PANGO_ATTR_FAMILY

font family name list (PangoAttrString)

  

PANGO_ATTR_STYLE

font slant style (PangoAttrInt)

  

PANGO_ATTR_WEIGHT

font weight (PangoAttrInt)

  

PANGO_ATTR_VARIANT

font variant (normal or small caps) (PangoAttrInt)

  

PANGO_ATTR_STRETCH

font stretch (PangoAttrInt)

  

PANGO_ATTR_SIZE

font size in points scaled by PANGO_SCALE (PangoAttrInt)

  

PANGO_ATTR_FONT_DESC

font description (PangoAttrFontDesc)

  

PANGO_ATTR_FOREGROUND

foreground color (PangoAttrColor)

  

PANGO_ATTR_BACKGROUND

background color (PangoAttrColor)

  

PANGO_ATTR_UNDERLINE

whether the text has an underline (PangoAttrInt)

  

PANGO_ATTR_STRIKETHROUGH

whether the text is struck-through (PangoAttrInt)

  

PANGO_ATTR_RISE

baseline displacement (PangoAttrInt)

  

PANGO_ATTR_SHAPE

shape (PangoAttrShape)

  

PANGO_ATTR_SCALE

font size scale factor (PangoAttrFloat)

  

PANGO_ATTR_FALLBACK

whether fallback is enabled (PangoAttrInt)

  

PANGO_ATTR_LETTER_SPACING

letter spacing (PangoAttrInt)

  

PANGO_ATTR_UNDERLINE_COLOR

underline color (PangoAttrColor)

  

PANGO_ATTR_STRIKETHROUGH_COLOR

strikethrough color (PangoAttrColor)

  

PANGO_ATTR_ABSOLUTE_SIZE

font size in pixels scaled by PANGO_SCALE (PangoAttrInt)

  

PANGO_ATTR_GRAVITY

base text gravity (PangoAttrInt)

  

PANGO_ATTR_GRAVITY_HINT

gravity hint (PangoAttrInt)

  

PANGO_ATTR_FONT_FEATURES

OpenType font features (PangoAttrString). Since 1.38

  

PANGO_ATTR_FOREGROUND_ALPHA

foreground alpha (PangoAttrInt). Since 1.38

  

PANGO_ATTR_BACKGROUND_ALPHA

background alpha (PangoAttrInt). Since 1.38

  

PANGO_ATTR_ALLOW_BREAKS

whether breaks are allowed (PangoAttrInt). Since 1.44

  

PANGO_ATTR_SHOW

how to render invisible characters (PangoAttrInt). Since 1.44

  

PANGO_ATTR_INSERT_HYPHENS

whether to insert hyphens at intra-word line breaks (PangoAttrInt). Since 1.44

  

PANGO_ATTR_OVERLINE

whether the text has an overline (PangoAttrInt). Since 1.46

  

PANGO_ATTR_OVERLINE_COLOR

overline color (PangoAttrColor). Since 1.46

  

struct PangoAttrClass

struct PangoAttrClass {
  PangoAttrType type;
  PangoAttribute * (*copy) (const PangoAttribute *attr);
  void             (*destroy) (PangoAttribute *attr);
  gboolean         (*equal) (const PangoAttribute *attr1, const PangoAttribute *attr2);
};

The PangoAttrClass structure stores the type and operations for a particular type of attribute. The functions in this structure should not be called directly. Instead, one should use the wrapper functions provided for PangoAttribute.

Members

PangoAttrType type;

the type ID for this attribute

  

copy ()

function to duplicate an attribute of this type (see pango_attribute_copy())

  

destroy ()

function to free an attribute of this type (see pango_attribute_destroy())

  

equal ()

function to check two attributes of this type for equality (see pango_attribute_equal())

  

struct PangoAttribute

struct PangoAttribute {
  const PangoAttrClass *klass;
  guint start_index; /* in bytes */
  guint end_index; /* in bytes. The character at this index is not included */
};

The PangoAttribute structure represents the common portions of all attributes. Particular types of attributes include this structure as their initial portion. The common portion of the attribute holds the range to which the value in the type-specific part of the attribute applies and should be initialized using pango_attribute_init(). By default an attribute will have an all-inclusive range of [0,G_MAXUINT].

Members

const PangoAttrClass *klass;

the class structure holding information about the type of the attribute

  

guint start_index;

the start index of the range (in bytes).

  

guint end_index;

end index of the range (in bytes). The character at this index is not included in the range.

  

PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING

#define PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING 0

This value can be used to set the start_index member of a PangoAttribute such that the attribute covers from the beginning of the text.

Since: 1.24

PANGO_ATTR_INDEX_TO_TEXT_END

#define PANGO_ATTR_INDEX_TO_TEXT_END		G_MAXUINT

This value can be used to set the end_index member of a PangoAttribute such that the attribute covers to the end of the text.

Since: 1.24

struct PangoAttrString

struct PangoAttrString {
  PangoAttribute attr;
  char *value;
};

The PangoAttrString structure is used to represent attributes with a string value.

Members

PangoAttribute attr;

the common portion of the attribute

  

char *value;

the string which is the value of the attribute

  

struct PangoAttrLanguage

struct PangoAttrLanguage {
  PangoAttribute attr;
  PangoLanguage *value;
};

The PangoAttrLanguage structure is used to represent attributes that are languages.

Members

PangoAttribute attr;

the common portion of the attribute

  

PangoLanguage *value;

the PangoLanguage which is the value of the attribute

  

struct PangoAttrColor

struct PangoAttrColor {
  PangoAttribute attr;
  PangoColor color;
};

The PangoAttrColor structure is used to represent attributes that are colors.

Members

PangoAttribute attr;

the common portion of the attribute

  

PangoColor color;

the PangoColor which is the value of the attribute

  

struct PangoAttrInt

struct PangoAttrInt {
  PangoAttribute attr;
  int value;
};

The PangoAttrInt structure is used to represent attributes with an integer or enumeration value.

Members

PangoAttribute attr;

the common portion of the attribute

  

int value;

the value of the attribute

  

struct PangoAttrFloat

struct PangoAttrFloat {
  PangoAttribute attr;
  double value;
};

The PangoAttrFloat structure is used to represent attributes with a float or double value.

Members

PangoAttribute attr;

the common portion of the attribute

  

double value;

the value of the attribute

  

struct PangoAttrFontDesc

struct PangoAttrFontDesc {
  PangoAttribute attr;
  PangoFontDescription *desc;
};

The PangoAttrFontDesc structure is used to store an attribute that sets all aspects of the font description at once.

Members

PangoAttribute attr;

the common portion of the attribute

  

PangoFontDescription *desc;

the font description which is the value of this attribute

  

struct PangoAttrShape

struct PangoAttrShape {
  PangoAttribute attr;
  PangoRectangle ink_rect;
  PangoRectangle logical_rect;

  gpointer              data;
  PangoAttrDataCopyFunc copy_func;
  GDestroyNotify        destroy_func;
};

The PangoAttrShape structure is used to represent attributes which impose shape restrictions.

Members

PangoAttribute attr;

the common portion of the attribute

  

PangoRectangle ink_rect;

the ink rectangle to restrict to

  

PangoRectangle logical_rect;

the logical rectangle to restrict to

  

gpointer data;

user data set (see pango_attr_shape_new_with_data())

  

PangoAttrDataCopyFunc copy_func;

copy function for the user data

  

GDestroyNotify destroy_func;

destroy function for the user data

  

struct PangoAttrSize

struct PangoAttrSize {
  PangoAttribute attr;
  int size;
  guint absolute : 1;
};

The PangoAttrSize structure is used to represent attributes which set font size.

Members

PangoAttribute attr;

the common portion of the attribute

  

int size;

size of font, in units of 1/PANGO_SCALE of a point (for PANGO_ATTR_SIZE) or of a device uni (for PANGO_ATTR_ABSOLUTE_SIZE)

  

guint absolute : 1;

whether the font size is in device units or points. This field is only present for compatibility with Pango-1.8.0 (PANGO_ATTR_ABSOLUTE_SIZE was added in 1.8.1); and always will be FALSE for PANGO_ATTR_SIZE and TRUE for PANGO_ATTR_ABSOLUTE_SIZE.

  

struct PangoAttrFontFeatures

struct PangoAttrFontFeatures {
  PangoAttribute attr;
  gchar *features;
};

The PangoAttrFontFeatures structure is used to represent OpenType font features as an attribute.

Members

PangoAttribute attr;

the common portion of the attribute

  

gchar *features;

the featues, as a string in CSS syntax

  

Since: 1.38

enum PangoUnderline

The PangoUnderline enumeration is used to specify whether text should be underlined, and if so, the type of underlining.

Members

PANGO_UNDERLINE_NONE

no underline should be drawn

  

PANGO_UNDERLINE_SINGLE

a single underline should be drawn

  

PANGO_UNDERLINE_DOUBLE

a double underline should be drawn

  

PANGO_UNDERLINE_LOW

a single underline should be drawn at a position beneath the ink extents of the text being underlined. This should be used only for underlining single characters, such as for keyboard accelerators. PANGO_UNDERLINE_SINGLE should be used for extended portions of text.

  

PANGO_UNDERLINE_ERROR

a wavy underline should be drawn below. This underline is typically used to indicate an error such as a possible mispelling; in some cases a contrasting color may automatically be used. This type of underlining is available since Pango 1.4.

  

PANGO_UNDERLINE_SINGLE_LINE

Like PANGO_UNDERLINE_SINGLE , but drawn continuously across multiple runs. This type of underlining is available since Pango 1.46.

  

PANGO_UNDERLINE_DOUBLE_LINE

Like PANGO_UNDERLINE_DOUBLE , but drawn continuously across multiple runs. This type of underlining is available since Pango 1.46.

  

PANGO_UNDERLINE_ERROR_LINE

Like PANGO_UNDERLINE_ERROR , but drawn continuously across multiple runs. This type of underlining is available since Pango 1.46.

  

enum PangoOverline

The PangoOverline enumeration is used to specify whether text should be overlined, and if so, the type of line.

Members

PANGO_OVERLINE_NONE

no overline should be drawn

  

PANGO_OVERLINE_SINGLE

Draw a single line above the ink extents of the text being underlined.

  

Since: 1.46

PANGO_SCALE_XX_SMALL

#define PANGO_SCALE_XX_SMALL ((double)0.5787037037037)

The scale factor for three shrinking steps (1 / (1.2 * 1.2 * 1.2)).

PANGO_SCALE_X_SMALL

#define PANGO_SCALE_X_SMALL  ((double)0.6944444444444)

The scale factor for two shrinking steps (1 / (1.2 * 1.2)).

PANGO_SCALE_SMALL

#define PANGO_SCALE_SMALL    ((double)0.8333333333333)

The scale factor for one shrinking step (1 / 1.2).

PANGO_SCALE_MEDIUM

#define PANGO_SCALE_MEDIUM   ((double)1.0)

The scale factor for normal size (1.0).

PANGO_SCALE_LARGE

#define PANGO_SCALE_LARGE    ((double)1.2)

The scale factor for one magnification step (1.2).

PANGO_SCALE_X_LARGE

#define PANGO_SCALE_X_LARGE  ((double)1.44)

The scale factor for two magnification steps (1.2 * 1.2).

PANGO_SCALE_XX_LARGE

#define PANGO_SCALE_XX_LARGE ((double)1.728)

The scale factor for three magnification steps (1.2 * 1.2 * 1.2).

enum PangoShowFlags

These flags affect how Pango treats characters that are normally not visible in the output.

Members

PANGO_SHOW_NONE

No special treatment for invisible characters

  

PANGO_SHOW_SPACES

Render spaces, tabs and newlines visibly

  

PANGO_SHOW_LINE_BREAKS

Render line breaks visibly

  

PANGO_SHOW_IGNORABLES

Render default-ignorable Unicode characters visibly

  

struct PangoColor

struct PangoColor {
  guint16 red;
  guint16 green;
  guint16 blue;
};

The PangoColor structure is used to represent a color in an uncalibrated RGB color-space.

Members

guint16 red;

value of red component

  

guint16 green;

value of green component

  

guint16 blue;

value of blue component

  

PangoAttrList

typedef struct {
  guint ref_count;
  GPtrArray *attributes;
} PangoAttrList;

The PangoAttrList structure represents a list of attributes that apply to a section of text. The attributes are, in general, allowed to overlap in an arbitrary fashion, however, if the attributes are manipulated only through pango_attr_list_change(), the overlap between properties will meet stricter criteria.

Since the PangoAttrList structure is stored as a linear list, it is not suitable for storing attributes for large amounts of text. In general, you should not use a single PangoAttrList for more than one paragraph of text.

PangoAttrIterator

typedef struct {
  GPtrArray *attrs; /* From the list */
  guint n_attrs; /* Copied from the list */

  GPtrArray *attribute_stack;

  guint attr_index;
  guint start_index;
  guint end_index;
} PangoAttrIterator;

The PangoAttrIterator structure is used to represent an iterator through a PangoAttrList. A new iterator is created with pango_attr_list_get_iterator(). Once the iterator is created, it can be advanced through the style changes in the text using pango_attr_iterator_next(). At each style change, the range of the current style segment and the attributes currently in effect can be queried.

Generated by GTK-Doc V1.33.0
docs/html/pango-Win32-Fonts-and-Rendering.html0000664000175000017500000014664314002404370021246 0ustar mclasenmclasen Win32 Fonts and Rendering: Pango Reference Manual

Win32 Fonts and Rendering

Win32 Fonts and Rendering — Font handling and rendering on Windows

Functions

PangoContext * pango_win32_get_context ()
void pango_win32_render ()
void pango_win32_render_transformed ()
void pango_win32_render_layout_line ()
void pango_win32_render_layout ()
PangoGlyph pango_win32_get_unknown_glyph ()
gint pango_win32_font_get_glyph_index ()
gboolean pango_win32_font_select_font ()
void pango_win32_font_done_font ()
double pango_win32_font_get_metrics_factor ()
gboolean pango_win32_get_debug_flag ()
HDC pango_win32_get_dc ()
PangoWin32FontCache * pango_win32_font_cache_new ()
void pango_win32_font_cache_free ()
HFONT pango_win32_font_cache_load ()
HFONT pango_win32_font_cache_loadw ()
void pango_win32_font_cache_unload ()
PangoFontMap * pango_win32_font_map_for_display ()
void pango_win32_shutdown_display ()
PangoWin32FontCache * pango_win32_font_map_get_font_cache ()
LOGFONTA * pango_win32_font_logfont ()
LOGFONTW * pango_win32_font_logfontw ()
PangoFontDescription * pango_win32_font_description_from_logfont ()
PangoFontDescription * pango_win32_font_description_from_logfontw ()

Types and Values

  PangoWin32FontCache

Description

The macros and functions in this section are used to access fonts natively on Win32 systems and to render text in conjunction with Win32 APIs.

Functions

pango_win32_get_context ()

PangoContext *
pango_win32_get_context (void);

pango_win32_get_context has been deprecated since version 1.22 and should not be used in newly-written code.

Use pango_win32_font_map_for_display() followed by pango_font_map_create_context() instead.

Retrieves a PangoContext appropriate for rendering with Windows fonts.

Returns

the new PangoContext

pango_win32_render ()

void
pango_win32_render (HDC hdc,
                    PangoFont *font,
                    PangoGlyphString *glyphs,
                    gint x,
                    gint y);

Render a PangoGlyphString onto a Windows DC

Parameters

hdc

the device context

  

font

the font in which to draw the string

  

glyphs

the glyph string to draw

  

x

the x position of start of string (in pixels)

  

y

the y position of baseline (in pixels)

  

pango_win32_render_transformed ()

void
pango_win32_render_transformed (HDC hdc,
                                const PangoMatrix *matrix,
                                PangoFont *font,
                                PangoGlyphString *glyphs,
                                int x,
                                int y);

Renders a PangoGlyphString onto a windows DC, possibly transforming the layed-out coordinates through a transformation matrix. Note that the transformation matrix for font is not changed, so to produce correct rendering results, the font must have been loaded using a PangoContext with an identical transformation matrix to that passed in to this function.

Parameters

hdc

a windows device context

  

matrix

a PangoMatrix, or NULL to use an identity transformation.

[nullable]

font

the font in which to draw the string

  

glyphs

the glyph string to draw

  

x

the x position of the start of the string (in Pango units in user space coordinates)

  

y

the y position of the baseline (in Pango units in user space coordinates)

  

pango_win32_render_layout_line ()

void
pango_win32_render_layout_line (HDC hdc,
                                PangoLayoutLine *line,
                                int x,
                                int y);

Render a PangoLayoutLine onto a device context. For underlining to work property the text alignment of the DC should have TA_BASELINE and TA_LEFT.

Parameters

hdc

DC to use for drawing

  

line

a PangoLayoutLine

  

x

the x position of start of string (in pixels)

  

y

the y position of baseline (in pixels)

  

pango_win32_render_layout ()

void
pango_win32_render_layout (HDC hdc,
                           PangoLayout *layout,
                           int x,
                           int y);

Render a PangoLayoutLine onto an X drawable

Parameters

hdc

HDC to use for drawing

  

layout

a PangoLayout

  

x

the X position of the left of the layout (in pixels)

  

y

the Y position of the top of the layout (in pixels)

  

pango_win32_get_unknown_glyph ()

PangoGlyph
pango_win32_get_unknown_glyph (PangoFont *font,
                               gunichar wc);

pango_win32_get_unknown_glyph is deprecated and should not be used in newly-written code.

Returns the index of a glyph suitable for drawing wc as an unknown character.

Use PANGO_GET_UNKNOWN_GLYPH() instead.

Parameters

font

a PangoFont

  

wc

the Unicode character for which a glyph is needed.

  

Returns

a glyph index into font

pango_win32_font_get_glyph_index ()

gint
pango_win32_font_get_glyph_index (PangoFont *font,
                                  gunichar wc);

pango_win32_font_get_glyph_index is deprecated and should not be used in newly-written code.

Obtains the index of the glyph for wc in font , or 0, if not covered.

Parameters

font

a PangoFont.

  

wc

a Unicode character.

  

Returns

the glyph index for wc .

pango_win32_font_select_font ()

gboolean
pango_win32_font_select_font (PangoFont *font,
                              HDC hdc);

pango_win32_font_select_font is deprecated and should not be used in newly-written code.

Selects the font into the specified DC and changes the mapping mode and world transformation of the DC appropriately for the font. You may want to surround the use of this function with calls to SaveDC() and RestoreDC(). Call pango_win32_font_done_font() when you are done using the DC to release allocated resources.

See pango_win32_font_get_metrics_factor() for information about converting from the coordinate space used by this function into Pango units.

Parameters

font

a PangoFont from the Win32 backend

  

hdc

a windows device context

  

Returns

TRUE if the operation succeeded.

pango_win32_font_done_font ()

void
pango_win32_font_done_font (PangoFont *font);

pango_win32_font_done_font is deprecated and should not be used in newly-written code.

Releases any resources allocated by pango_win32_font_done_font()

Parameters

font

a PangoFont from the win32 backend

  

pango_win32_font_get_metrics_factor ()

double
pango_win32_font_get_metrics_factor (PangoFont *font);

pango_win32_font_get_metrics_factor is deprecated and should not be used in newly-written code.

Returns the scale factor from logical units in the coordinate space used by pango_win32_font_select_font() to Pango units in user space.

Parameters

font

a PangoFont from the win32 backend

  

Returns

factor to multiply logical units by to get Pango units.

pango_win32_get_debug_flag ()

gboolean
pango_win32_get_debug_flag (void);

pango_win32_get_debug_flag is deprecated and should not be used in newly-written code.

Returns whether debugging is turned on.

Returns

TRUE if debugging is turned on.

Since: 1.2

pango_win32_get_dc ()

HDC
pango_win32_get_dc (void);

pango_win32_get_dc is deprecated and should not be used in newly-written code.

Obtains a handle to the Windows device context that is used by Pango.

Returns

A handle to the Windows device context that is used by Pango.

pango_win32_font_cache_new ()

PangoWin32FontCache *
pango_win32_font_cache_new (void);

Creates a font cache.

Returns

The new font cache. This must be freed with pango_win32_font_cache_free().

pango_win32_font_cache_free ()

void
pango_win32_font_cache_free (PangoWin32FontCache *cache);

Frees a PangoWin32FontCache and all associated memory. All fonts loaded through this font cache will be freed along with the cache.

Parameters

cache

a PangoWin32FontCache

  

pango_win32_font_cache_load ()

HFONT
pango_win32_font_cache_load (PangoWin32FontCache *cache,
                             const LOGFONTA *logfont);

Creates a HFONT from a LOGFONTA. The result may be newly loaded, or it may have been previously stored

Parameters

cache

a PangoWin32FontCache

  

logfont

a pointer to a LOGFONTA structure describing the font to load.

  

Returns

The font structure, or NULL if the font could not be loaded. In order to free this structure, you must call pango_win32_font_cache_unload().

[nullable]

pango_win32_font_cache_loadw ()

HFONT
pango_win32_font_cache_loadw (PangoWin32FontCache *cache,
                              const LOGFONTW *logfont);

Creates a HFONT from a LOGFONTW. The result may be newly loaded, or it may have been previously stored

Parameters

cache

a PangoWin32FontCache

  

logfont

a pointer to a LOGFONTW structure describing the font to load.

  

Returns

The font structure, or NULL if the font could not be loaded. In order to free this structure, you must call pango_win32_font_cache_unload().

[nullable]

Since: 1.16

pango_win32_font_cache_unload ()

void
pango_win32_font_cache_unload (PangoWin32FontCache *cache,
                               HFONT hfont);

Frees a font structure previously loaded with pango_win32_font_cache_load().

Parameters

cache

a PangoWin32FontCache

  

hfont

the HFONT to unload

  

pango_win32_font_map_for_display ()

PangoFontMap *
pango_win32_font_map_for_display (void);

Returns a PangoWin32FontMap. Font maps are cached and should not be freed. If the font map is no longer needed, it can be released with pango_win32_shutdown_display().

Returns

a PangoFontMap.

pango_win32_shutdown_display ()

void
pango_win32_shutdown_display (void);

Free cached resources.

pango_win32_font_map_get_font_cache ()

PangoWin32FontCache *
pango_win32_font_map_get_font_cache (PangoFontMap *font_map);

Obtains the font cache associated with the given font map.

Parameters

font_map

a PangoWin32FontMap.

  

Returns

the PangoWin32FontCache of font_map .

pango_win32_font_logfont ()

LOGFONTA *
pango_win32_font_logfont (PangoFont *font);

Determine the LOGFONTA struct for the specified font. Note that Pango internally uses LOGFONTW structs, so if converting the UTF-16 face name in the LOGFONTW struct to system codepage fails, the returned LOGFONTA will have an emppty face name. To get the LOGFONTW of a PangoFont, use pango_win32_font_logfontw(). It is recommended to do that always even if you don't expect to come across fonts with odd names.

Parameters

font

a PangoFont which must be from the Win32 backend

  

Returns

A newly allocated LOGFONTA struct. It must be freed with g_free().

pango_win32_font_logfontw ()

LOGFONTW *
pango_win32_font_logfontw (PangoFont *font);

Determine the LOGFONTW struct for the specified font.

Parameters

font

a PangoFont which must be from the Win32 backend

  

Returns

A newly allocated LOGFONTW struct. It must be freed with g_free().

Since: 1.16

pango_win32_font_description_from_logfont ()

PangoFontDescription *
pango_win32_font_description_from_logfont
                               (const LOGFONTA *lfp);

Creates a PangoFontDescription that matches the specified LOGFONTA.

The face name, italicness and weight fields in the LOGFONTA are used to set up the resulting PangoFontDescription. If the face name in the LOGFONTA contains non-ASCII characters the font is temporarily loaded (using CreateFontIndirect()) and an ASCII (usually English) name for it is looked up from the font name tables in the font data. If that doesn't work, the face name is converted from the system codepage to UTF-8 and that is used.

Parameters

lfp

a LOGFONTA

  

Returns

the newly allocated PangoFontDescription, which should be freed using pango_font_description_free()

Since: 1.12

pango_win32_font_description_from_logfontw ()

PangoFontDescription *
pango_win32_font_description_from_logfontw
                               (const LOGFONTW *lfp);

Creates a PangoFontDescription that matches the specified LOGFONTW.

The face name, italicness and weight fields in the LOGFONTW are used to set up the resulting PangoFontDescription. If the face name in the LOGFONTW contains non-ASCII characters the font is temporarily loaded (using CreateFontIndirect()) and an ASCII (usually English) name for it is looked up from the font name tables in the font data. If that doesn't work, the face name is converted from UTF-16 to UTF-8 and that is used.

Parameters

lfp

a LOGFONTW

  

Returns

the newly allocated PangoFontDescription, which should be freed using pango_font_description_free()

Since: 1.16

Types and Values

PangoWin32FontCache

typedef struct _PangoWin32FontCache PangoWin32FontCache;

A PangoWin32FontCache caches HFONTs by their LOGFONT descriptions.

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docs/html/pango-Scripts-and-Languages.html0000664000175000017500000022137614002404370020672 0ustar mclasenmclasen Scripts and Languages: Pango Reference Manual

Scripts and Languages

Scripts and Languages — Identifying writing systems and languages

Functions

PangoScript pango_script_for_unichar ()
PangoLanguage * pango_script_get_sample_language ()
PangoScriptIter * pango_script_iter_new ()
void pango_script_iter_get_range ()
gboolean pango_script_iter_next ()
void pango_script_iter_free ()
PangoLanguage * pango_language_from_string ()
const char * pango_language_to_string ()
gboolean pango_language_matches ()
gboolean pango_language_includes_script ()
const PangoScript * pango_language_get_scripts ()
PangoLanguage * pango_language_get_default ()
PangoLanguage ** pango_language_get_preferred ()
const char * pango_language_get_sample_string ()

Types and Values

enum PangoScript
  PangoScriptIter
  PangoLanguage

Object Hierarchy

    GBoxed
    ├── PangoLanguage
    ╰── PangoScriptIter
    GEnum
    ╰── PangoScript

Description

The functions in this section are used to identify the writing system, or script of individual characters and of ranges within a larger text string.

Functions

pango_script_for_unichar ()

PangoScript
pango_script_for_unichar (gunichar ch);

pango_script_for_unichar has been deprecated since version 1.44. and should not be used in newly-written code.

Use g_unichar_get_script()

Looks up the script for a particular character (as defined by Unicode Standard Annex #24). No check is made for ch being a valid Unicode character; if you pass in invalid character, the result is undefined.

Note that while the return type of this function is declared as PangoScript, as of Pango 1.18, this function simply returns the return value of g_unichar_get_script(). Callers must be prepared to handle unknown values.

Parameters

ch

a Unicode character

  

Returns

the PangoScript for the character.

Since: 1.4

pango_script_get_sample_language ()

PangoLanguage *
pango_script_get_sample_language (PangoScript script);

Given a script, finds a language tag that is reasonably representative of that script. This will usually be the most widely spoken or used language written in that script: for instance, the sample language for PANGO_SCRIPT_CYRILLIC is ru (Russian), the sample language for PANGO_SCRIPT_ARABIC is ar.

For some scripts, no sample language will be returned because there is no language that is sufficiently representative. The best example of this is PANGO_SCRIPT_HAN, where various different variants of written Chinese, Japanese, and Korean all use significantly different sets of Han characters and forms of shared characters. No sample language can be provided for many historical scripts as well.

As of 1.18, this function checks the environment variables PANGO_LANGUAGE and LANGUAGE (checked in that order) first. If one of them is set, it is parsed as a list of language tags separated by colons or other separators. This function will return the first language in the parsed list that Pango believes may use script for writing. This last predicate is tested using pango_language_includes_script(). This can be used to control Pango's font selection for non-primary languages. For example, a PANGO_LANGUAGE enviroment variable set to "en:fa" makes Pango choose fonts suitable for Persian (fa) instead of Arabic (ar) when a segment of Arabic text is found in an otherwise non-Arabic text. The same trick can be used to choose a default language for PANGO_SCRIPT_HAN when setting context language is not feasible.

Parameters

script

a PangoScript

  

Returns

a PangoLanguage that is representative of the script, or NULL if no such language exists.

[nullable]

Since: 1.4

pango_script_iter_new ()

PangoScriptIter *
pango_script_iter_new (const char *text,
                       int length);

Create a new PangoScriptIter, used to break a string of Unicode text into runs by Unicode script. No copy is made of text , so the caller needs to make sure it remains valid until the iterator is freed with pango_script_iter_free().

Parameters

text

a UTF-8 string

  

length

length of text , or -1 if text is nul-terminated.

  

Returns

the new script iterator, initialized to point at the first range in the text, which should be freed with pango_script_iter_free(). If the string is empty, it will point at an empty range.

Since: 1.4

pango_script_iter_get_range ()

void
pango_script_iter_get_range (PangoScriptIter *iter,
                             const char **start,
                             const char **end,
                             PangoScript *script);

Gets information about the range to which iter currently points. The range is the set of locations p where *start <= p < *end. (That is, it doesn't include the character stored at *end)

Note that while the type of the script argument is declared as PangoScript, as of Pango 1.18, this function simply returns GUnicodeScript values. Callers must be prepared to handle unknown values.

Parameters

iter

a PangoScriptIter

  

start

location to store start position of the range, or NULL.

[out][allow-none]

end

location to store end position of the range, or NULL.

[out][allow-none]

script

location to store script for range, or NULL.

[out][allow-none]

Since: 1.4

pango_script_iter_next ()

gboolean
pango_script_iter_next (PangoScriptIter *iter);

Advances a PangoScriptIter to the next range. If iter is already at the end, it is left unchanged and FALSE is returned.

Parameters

iter

a PangoScriptIter

  

Returns

TRUE if iter was successfully advanced.

Since: 1.4

pango_script_iter_free ()

void
pango_script_iter_free (PangoScriptIter *iter);

Frees a PangoScriptIter created with pango_script_iter_new().

Parameters

iter

a PangoScriptIter

  

Since: 1.4

pango_language_from_string ()

PangoLanguage *
pango_language_from_string (const char *language);

Take a RFC-3066 format language tag as a string and convert it to a PangoLanguage pointer that can be efficiently copied (copy the pointer) and compared with other language tags (compare the pointer.)

This function first canonicalizes the string by converting it to lowercase, mapping '_' to '-', and stripping all characters other than letters and '-'.

Use pango_language_get_default() if you want to get the PangoLanguage for the current locale of the process.

Parameters

language

a string representing a language tag, or NULL.

[allow-none]

Returns

an opaque pointer to a PangoLanguage structure, or NULL if language was NULL. The returned pointer will be valid forever after, and should not be freed.

[transfer none][nullable]

pango_language_to_string ()

const char *
pango_language_to_string (PangoLanguage *language);

Gets the RFC-3066 format string representing the given language tag.

Parameters

language

a language tag.

  

Returns

a string representing the language tag. This is owned by Pango and should not be freed.

pango_language_matches ()

gboolean
pango_language_matches (PangoLanguage *language,
                        const char *range_list);

Checks if a language tag matches one of the elements in a list of language ranges. A language tag is considered to match a range in the list if the range is '*', the range is exactly the tag, or the range is a prefix of the tag, and the character after it in the tag is '-'.

Parameters

language

a language tag (see pango_language_from_string()), NULL is allowed and matches nothing but '*'.

[nullable]

range_list

a list of language ranges, separated by ';', ':', ',', or space characters. Each element must either be '*', or a RFC 3066 language range canonicalized as by pango_language_from_string()

  

Returns

TRUE if a match was found.

pango_language_includes_script ()

gboolean
pango_language_includes_script (PangoLanguage *language,
                                PangoScript script);

Determines if script is one of the scripts used to write language . The returned value is conservative; if nothing is known about the language tag language , TRUE will be returned, since, as far as Pango knows, script might be used to write language .

This routine is used in Pango's itemization process when determining if a supplied language tag is relevant to a particular section of text. It probably is not useful for applications in most circumstances.

This function uses pango_language_get_scripts() internally.

Parameters

language

a PangoLanguage, or NULL.

[nullable]

script

a PangoScript

  

Returns

TRUE if script is one of the scripts used to write language or if nothing is known about language (including the case that language is NULL), FALSE otherwise.

Since: 1.4

pango_language_get_scripts ()

const PangoScript *
pango_language_get_scripts (PangoLanguage *language,
                            int *num_scripts);

Determines the scripts used to to write language . If nothing is known about the language tag language , or if language is NULL, then NULL is returned. The list of scripts returned starts with the script that the language uses most and continues to the one it uses least.

The value num_script points at will be set to the number of scripts in the returned array (or zero if NULL is returned).

Most languages use only one script for writing, but there are some that use two (Latin and Cyrillic for example), and a few use three (Japanese for example). Applications should not make any assumptions on the maximum number of scripts returned though, except that it is positive if the return value is not NULL, and it is a small number.

The pango_language_includes_script() function uses this function internally.

Note: while the return value is declared as PangoScript, the returned values are from the GUnicodeScript enumeration, which may have more values. Callers need to handle unknown values.

Parameters

language

a PangoLanguage, or NULL.

[allow-none]

num_scripts

location to return number of scripts, or NULL.

[out caller-allocates][allow-none]

Returns

An array of PangoScript values, with the number of entries in the array stored in num_scripts , or NULL if Pango does not have any information about this particular language tag (also the case if language is NULL). The returned array is owned by Pango and should not be modified or freed.

[array length=num_scripts][nullable]

Since: 1.22

pango_language_get_default ()

PangoLanguage *
pango_language_get_default (void);

Returns the PangoLanguage for the current locale of the process. Note that this can change over the life of an application.

On Unix systems, this is the return value is derived from setlocale(LC_CTYPE, NULL), and the user can affect this through the environment variables LC_ALL, LC_CTYPE or LANG (checked in that order). The locale string typically is in the form lang_COUNTRY, where lang is an ISO-639 language code, and COUNTRY is an ISO-3166 country code. For instance, sv_FI for Swedish as written in Finland or pt_BR for Portuguese as written in Brazil.

On Windows, the C library does not use any such environment variables, and setting them won't affect the behavior of functions like ctime(). The user sets the locale through the Regional Options in the Control Panel. The C library (in the setlocale() function) does not use country and language codes, but country and language names spelled out in English. However, this function does check the above environment variables, and does return a Unix-style locale string based on either said environment variables or the thread's current locale.

Your application should call setlocale(LC_ALL, ""); for the user settings to take effect. Gtk+ does this in its initialization functions automatically (by calling gtk_set_locale()). See man setlocale for more details.

Returns

the default language as a PangoLanguage, must not be freed.

[transfer none]

Since: 1.16

pango_language_get_preferred ()

PangoLanguage **
pango_language_get_preferred (void);

Returns the list of languages that the user prefers, as specified by the PANGO_LANGUAGE or LANGUAGE environment variables, in order of preference. Note that this list does not necessarily include the language returned by pango_language_get_default().

When choosing language-specific resources, such as the sample text returned by pango_language_get_sample_string(), you should first try the default language, followed by the languages returned by this function.

Returns

a NULL-terminated array of PangoLanguage*.

[transfer none][nullable]

Since: 1.48

pango_language_get_sample_string ()

const char *
pango_language_get_sample_string (PangoLanguage *language);

Get a string that is representative of the characters needed to render a particular language.

The sample text may be a pangram, but is not necessarily. It is chosen to be demonstrative of normal text in the language, as well as exposing font feature requirements unique to the language. It is suitable for use as sample text in a font selection dialog.

If language is NULL, the default language as found by pango_language_get_default() is used.

If Pango does not have a sample string for language , the classic "The quick brown fox..." is returned. This can be detected by comparing the returned pointer value to that returned for (non-existent) language code "xx". That is, compare to:

1
 
pango_language_get_sample_string (pango_language_from_string ("xx"))

Parameters

language

a PangoLanguage, or NULL.

[nullable]

Returns

the sample string. This value is owned by Pango and should not be freed.

Types and Values

enum PangoScript

The PangoScript enumeration identifies different writing systems. The values correspond to the names as defined in the Unicode standard. See Unicode Standard Annex 24: Script names.

Note that this enumeration is deprecated and will not be updated to include values in newer versions of the Unicode standard. Applications should use the GUnicodeScript enumeration instead, whose values are interchangeable with PangoScript.

Members

PANGO_SCRIPT_INVALID_CODE

a value never returned from pango_script_for_unichar()

  

PANGO_SCRIPT_COMMON

a character used by multiple different scripts

  

PANGO_SCRIPT_INHERITED

a mark glyph that takes its script from the base glyph to which it is attached

  

PANGO_SCRIPT_ARABIC

Arabic

  

PANGO_SCRIPT_ARMENIAN

Armenian

  

PANGO_SCRIPT_BENGALI

Bengali

  

PANGO_SCRIPT_BOPOMOFO

Bopomofo

  

PANGO_SCRIPT_CHEROKEE

Cherokee

  

PANGO_SCRIPT_COPTIC

Coptic

  

PANGO_SCRIPT_CYRILLIC

Cyrillic

  

PANGO_SCRIPT_DESERET

Deseret

  

PANGO_SCRIPT_DEVANAGARI

Devanagari

  

PANGO_SCRIPT_ETHIOPIC

Ethiopic

  

PANGO_SCRIPT_GEORGIAN

Georgian

  

PANGO_SCRIPT_GOTHIC

Gothic

  

PANGO_SCRIPT_GREEK

Greek

  

PANGO_SCRIPT_GUJARATI

Gujarati

  

PANGO_SCRIPT_GURMUKHI

Gurmukhi

  

PANGO_SCRIPT_HAN

Han

  

PANGO_SCRIPT_HANGUL

Hangul

  

PANGO_SCRIPT_HEBREW

Hebrew

  

PANGO_SCRIPT_HIRAGANA

Hiragana

  

PANGO_SCRIPT_KANNADA

Kannada

  

PANGO_SCRIPT_KATAKANA

Katakana

  

PANGO_SCRIPT_KHMER

Khmer

  

PANGO_SCRIPT_LAO

Lao

  

PANGO_SCRIPT_LATIN

Latin

  

PANGO_SCRIPT_MALAYALAM

Malayalam

  

PANGO_SCRIPT_MONGOLIAN

Mongolian

  

PANGO_SCRIPT_MYANMAR

Myanmar

  

PANGO_SCRIPT_OGHAM

Ogham

  

PANGO_SCRIPT_OLD_ITALIC

Old Italic

  

PANGO_SCRIPT_ORIYA

Oriya

  

PANGO_SCRIPT_RUNIC

Runic

  

PANGO_SCRIPT_SINHALA

Sinhala

  

PANGO_SCRIPT_SYRIAC

Syriac

  

PANGO_SCRIPT_TAMIL

Tamil

  

PANGO_SCRIPT_TELUGU

Telugu

  

PANGO_SCRIPT_THAANA

Thaana

  

PANGO_SCRIPT_THAI

Thai

  

PANGO_SCRIPT_TIBETAN

Tibetan

  

PANGO_SCRIPT_CANADIAN_ABORIGINAL

Canadian Aboriginal

  

PANGO_SCRIPT_YI

Yi

  

PANGO_SCRIPT_TAGALOG

Tagalog

  

PANGO_SCRIPT_HANUNOO

Hanunoo

  

PANGO_SCRIPT_BUHID

Buhid

  

PANGO_SCRIPT_TAGBANWA

Tagbanwa

  

PANGO_SCRIPT_BRAILLE

Braille

  

PANGO_SCRIPT_CYPRIOT

Cypriot

  

PANGO_SCRIPT_LIMBU

Limbu

  

PANGO_SCRIPT_OSMANYA

Osmanya

  

PANGO_SCRIPT_SHAVIAN

Shavian

  

PANGO_SCRIPT_LINEAR_B

Linear B

  

PANGO_SCRIPT_TAI_LE

Tai Le

  

PANGO_SCRIPT_UGARITIC

Ugaritic

  

PANGO_SCRIPT_NEW_TAI_LUE

New Tai Lue. Since 1.10

  

PANGO_SCRIPT_BUGINESE

Buginese. Since 1.10

  

PANGO_SCRIPT_GLAGOLITIC

Glagolitic. Since 1.10

  

PANGO_SCRIPT_TIFINAGH

Tifinagh. Since 1.10

  

PANGO_SCRIPT_SYLOTI_NAGRI

Syloti Nagri. Since 1.10

  

PANGO_SCRIPT_OLD_PERSIAN

Old Persian. Since 1.10

  

PANGO_SCRIPT_KHAROSHTHI

Kharoshthi. Since 1.10

  

PANGO_SCRIPT_UNKNOWN

an unassigned code point. Since 1.14

  

PANGO_SCRIPT_BALINESE

Balinese. Since 1.14

  

PANGO_SCRIPT_CUNEIFORM

Cuneiform. Since 1.14

  

PANGO_SCRIPT_PHOENICIAN

Phoenician. Since 1.14

  

PANGO_SCRIPT_PHAGS_PA

Phags-pa. Since 1.14

  

PANGO_SCRIPT_NKO

N'Ko. Since 1.14

  

PANGO_SCRIPT_KAYAH_LI

Kayah Li. Since 1.20.1

  

PANGO_SCRIPT_LEPCHA

Lepcha. Since 1.20.1

  

PANGO_SCRIPT_REJANG

Rejang. Since 1.20.1

  

PANGO_SCRIPT_SUNDANESE

Sundanese. Since 1.20.1

  

PANGO_SCRIPT_SAURASHTRA

Saurashtra. Since 1.20.1

  

PANGO_SCRIPT_CHAM

Cham. Since 1.20.1

  

PANGO_SCRIPT_OL_CHIKI

Ol Chiki. Since 1.20.1

  

PANGO_SCRIPT_VAI

Vai. Since 1.20.1

  

PANGO_SCRIPT_CARIAN

Carian. Since 1.20.1

  

PANGO_SCRIPT_LYCIAN

Lycian. Since 1.20.1

  

PANGO_SCRIPT_LYDIAN

Lydian. Since 1.20.1

  

PANGO_SCRIPT_BATAK

Batak. Since 1.32

  

PANGO_SCRIPT_BRAHMI

Brahmi. Since 1.32

  

PANGO_SCRIPT_MANDAIC

Mandaic. Since 1.32

  

PANGO_SCRIPT_CHAKMA

Chakma. Since: 1.32

  

PANGO_SCRIPT_MEROITIC_CURSIVE

Meroitic Cursive. Since: 1.32

  

PANGO_SCRIPT_MEROITIC_HIEROGLYPHS

Meroitic Hieroglyphs. Since: 1.32

  

PANGO_SCRIPT_MIAO

Miao. Since: 1.32

  

PANGO_SCRIPT_SHARADA

Sharada. Since: 1.32

  

PANGO_SCRIPT_SORA_SOMPENG

Sora Sompeng. Since: 1.32

  

PANGO_SCRIPT_TAKRI

Takri. Since: 1.32

  

PANGO_SCRIPT_BASSA_VAH

Bassa. Since: 1.40

  

PANGO_SCRIPT_CAUCASIAN_ALBANIAN

Caucasian Albanian. Since: 1.40

  

PANGO_SCRIPT_DUPLOYAN

Duployan. Since: 1.40

  

PANGO_SCRIPT_ELBASAN

Elbasan. Since: 1.40

  

PANGO_SCRIPT_GRANTHA

Grantha. Since: 1.40

  

PANGO_SCRIPT_KHOJKI

Kjohki. Since: 1.40

  

PANGO_SCRIPT_KHUDAWADI

Khudawadi, Sindhi. Since: 1.40

  

PANGO_SCRIPT_LINEAR_A

Linear A. Since: 1.40

  

PANGO_SCRIPT_MAHAJANI

Mahajani. Since: 1.40

  

PANGO_SCRIPT_MANICHAEAN

Manichaean. Since: 1.40

  

PANGO_SCRIPT_MENDE_KIKAKUI

Mende Kikakui. Since: 1.40

  

PANGO_SCRIPT_MODI

Modi. Since: 1.40

  

PANGO_SCRIPT_MRO

Mro. Since: 1.40

  

PANGO_SCRIPT_NABATAEAN

Nabataean. Since: 1.40

  

PANGO_SCRIPT_OLD_NORTH_ARABIAN

Old North Arabian. Since: 1.40

  

PANGO_SCRIPT_OLD_PERMIC

Old Permic. Since: 1.40

  

PANGO_SCRIPT_PAHAWH_HMONG

Pahawh Hmong. Since: 1.40

  

PANGO_SCRIPT_PALMYRENE

Palmyrene. Since: 1.40

  

PANGO_SCRIPT_PAU_CIN_HAU

Pau Cin Hau. Since: 1.40

  

PANGO_SCRIPT_PSALTER_PAHLAVI

Psalter Pahlavi. Since: 1.40

  

PANGO_SCRIPT_SIDDHAM

Siddham. Since: 1.40

  

PANGO_SCRIPT_TIRHUTA

Tirhuta. Since: 1.40

  

PANGO_SCRIPT_WARANG_CITI

Warang Citi. Since: 1.40

  

PANGO_SCRIPT_AHOM

Ahom. Since: 1.40

  

PANGO_SCRIPT_ANATOLIAN_HIEROGLYPHS

Anatolian Hieroglyphs. Since: 1.40

  

PANGO_SCRIPT_HATRAN

Hatran. Since: 1.40

  

PANGO_SCRIPT_MULTANI

Multani. Since: 1.40

  

PANGO_SCRIPT_OLD_HUNGARIAN

Old Hungarian. Since: 1.40

  

PANGO_SCRIPT_SIGNWRITING

Signwriting. Since: 1.40

  

PangoScriptIter

typedef struct _PangoScriptIter PangoScriptIter;

A PangoScriptIter is used to iterate through a string and identify ranges in different scripts.

PangoLanguage

typedef struct _PangoLanguage PangoLanguage;

The PangoLanguage structure is used to represent a language.

PangoLanguage pointers can be efficiently copied and compared with each other.

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docs/html/pango-Vertical-Text.html0000664000175000017500000007572414002404370017276 0ustar mclasenmclasen Vertical Text: Pango Reference Manual

Vertical Text

Vertical Text — Laying text out in vertical directions

Functions

#define PANGO_GRAVITY_IS_IMPROPER()
#define PANGO_GRAVITY_IS_VERTICAL()
PangoGravity pango_gravity_get_for_matrix ()
PangoGravity pango_gravity_get_for_script ()
PangoGravity pango_gravity_get_for_script_and_width ()
double pango_gravity_to_rotation ()

Types and Values

enum PangoGravity
enum PangoGravityHint

Object Hierarchy

    GEnum
    ├── PangoGravity
    ╰── PangoGravityHint

Description

Since 1.16, Pango is able to correctly lay vertical text out. In fact, it can set layouts of mixed vertical and non-vertical text. This section describes the types used for setting vertical text parameters.

The way this is implemented is through the concept of gravity. Gravity of normal Latin text is south. A gravity value of east means that glyphs will be rotated ninety degrees counterclockwise. So, to render vertical text one needs to set the gravity and rotate the layout using the matrix machinery already in place. This has the huge advantage that most algorithms working on a PangoLayout do not need any change as the assumption that lines run in the X direction and stack in the Y direction holds even for vertical text layouts.

Applications should only need to set base gravity on PangoContext in use, and let Pango decide the gravity assigned to each run of text. This automatically handles text with mixed scripts. A very common use is to set the context base gravity to auto using pango_context_set_base_gravity() and rotate the layout normally. Pango will make sure that Asian languages take the right form, while other scripts are rotated normally.

The correct way to set gravity on a layout is to set it on the context associated with it using pango_context_set_base_gravity(). The context of a layout can be accessed using pango_layout_get_context(). The currently set base gravity of the context can be accessed using pango_context_get_base_gravity() and the resolved gravity of it using pango_context_get_gravity(). The resolved gravity is the same as the base gravity for the most part, except that if the base gravity is set to PANGO_GRAVITY_AUTO, the resolved gravity will depend on the current matrix set on context, and is derived using pango_gravity_get_for_matrix().

The next thing an application may want to set on the context is the gravity hint. A PangoGravityHint instructs how different scripts should react to the set base gravity.

Font descriptions have a gravity property too, that can be set using pango_font_description_set_gravity() and accessed using pango_font_description_get_gravity(). However, those are rarely useful from application code and are mainly used by PangoLayout internally.

Last but not least, one can create PangoAttributes for gravity and gravity hint using pango_attr_gravity_new() and pango_attr_gravity_hint_new().

Functions

PANGO_GRAVITY_IS_IMPROPER()

#define             PANGO_GRAVITY_IS_IMPROPER(gravity)

Whether a PangoGravity represents a gravity that results in reversal of text direction.

Parameters

gravity

the PangoGravity to check

  

Returns

TRUE if gravity is PANGO_GRAVITY_WEST or PANGO_GRAVITY_NORTH, FALSE otherwise.

Since: 1.32

PANGO_GRAVITY_IS_VERTICAL()

#define             PANGO_GRAVITY_IS_VERTICAL(gravity)

Whether a PangoGravity represents vertical writing directions.

Parameters

gravity

the PangoGravity to check

  

Returns

TRUE if gravity is PANGO_GRAVITY_EAST or PANGO_GRAVITY_WEST, FALSE otherwise.

Since: 1.16

pango_gravity_get_for_matrix ()

PangoGravity
pango_gravity_get_for_matrix (const PangoMatrix *matrix);

Finds the gravity that best matches the rotation component in a PangoMatrix.

Parameters

matrix

a PangoMatrix.

[nullable]

Returns

the gravity of matrix , which will never be PANGO_GRAVITY_AUTO, or PANGO_GRAVITY_SOUTH if matrix is NULL

Since: 1.16

pango_gravity_get_for_script ()

PangoGravity
pango_gravity_get_for_script (PangoScript script,
                              PangoGravity base_gravity,
                              PangoGravityHint hint);

Based on the script, base gravity, and hint, returns actual gravity to use in laying out a single PangoItem.

If base_gravity is PANGO_GRAVITY_AUTO, it is first replaced with the preferred gravity of script . To get the preferred gravity of a script, pass PANGO_GRAVITY_AUTO and PANGO_GRAVITY_HINT_STRONG in.

Parameters

script

PangoScript to query

  

base_gravity

base gravity of the paragraph

  

hint

orientation hint

  

Returns

resolved gravity suitable to use for a run of text with script .

Since: 1.16

pango_gravity_get_for_script_and_width ()

PangoGravity
pango_gravity_get_for_script_and_width
                               (PangoScript script,
                                gboolean wide,
                                PangoGravity base_gravity,
                                PangoGravityHint hint);

Based on the script, East Asian width, base gravity, and hint, returns actual gravity to use in laying out a single character or PangoItem.

This function is similar to pango_gravity_get_for_script() except that this function makes a distinction between narrow/half-width and wide/full-width characters also. Wide/full-width characters always stand upright, that is, they always take the base gravity, whereas narrow/full-width characters are always rotated in vertical context.

If base_gravity is PANGO_GRAVITY_AUTO, it is first replaced with the preferred gravity of script .

Parameters

script

PangoScript to query

  

wide

TRUE for wide characters as returned by g_unichar_iswide()

  

base_gravity

base gravity of the paragraph

  

hint

orientation hint

  

Returns

resolved gravity suitable to use for a run of text with script and wide .

Since: 1.26

pango_gravity_to_rotation ()

double
pango_gravity_to_rotation (PangoGravity gravity);

Converts a PangoGravity value to its natural rotation in radians. gravity should not be PANGO_GRAVITY_AUTO.

Note that pango_matrix_rotate() takes angle in degrees, not radians. So, to call pango_matrix_rotate() with the output of this function you should multiply it by (180. / G_PI).

Parameters

gravity

gravity to query

  

Returns

the rotation value corresponding to gravity .

Since: 1.16

Types and Values

enum PangoGravity

The PangoGravity type represents the orientation of glyphs in a segment of text. This is useful when rendering vertical text layouts. In those situations, the layout is rotated using a non-identity PangoMatrix, and then glyph orientation is controlled using PangoGravity. Not every value in this enumeration makes sense for every usage of PangoGravity; for example, PANGO_GRAVITY_AUTO only can be passed to pango_context_set_base_gravity() and can only be returned by pango_context_get_base_gravity().

See also: PangoGravityHint

Members

PANGO_GRAVITY_SOUTH

Glyphs stand upright (default)

  

PANGO_GRAVITY_EAST

Glyphs are rotated 90 degrees clockwise

  

PANGO_GRAVITY_NORTH

Glyphs are upside-down

  

PANGO_GRAVITY_WEST

Glyphs are rotated 90 degrees counter-clockwise

  

PANGO_GRAVITY_AUTO

Gravity is resolved from the context matrix

  

Since: 1.16

enum PangoGravityHint

The PangoGravityHint defines how horizontal scripts should behave in a vertical context. That is, English excerpt in a vertical paragraph for example.

See PangoGravity.

Members

PANGO_GRAVITY_HINT_NATURAL

scripts will take their natural gravity based on the base gravity and the script. This is the default.

  

PANGO_GRAVITY_HINT_STRONG

always use the base gravity set, regardless of the script.

  

PANGO_GRAVITY_HINT_LINE

for scripts not in their natural direction (eg. Latin in East gravity), choose per-script gravity such that every script respects the line progression. This means, Latin and Arabic will take opposite gravities and both flow top-to-bottom for example.

  

Since: 1.16

See Also

pango_context_get_base_gravity(), pango_context_set_base_gravity(), pango_context_get_gravity(), pango_context_get_gravity_hint(), pango_context_set_gravity_hint(), pango_font_description_set_gravity(), pango_font_description_get_gravity(), pango_attr_gravity_new(), pango_attr_gravity_hint_new()

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docs/html/pango.html0000664000175000017500000000624114002404370014571 0ustar mclasenmclasen Basic Pango Interfaces: Pango Reference Manual

Basic Pango Interfaces

Rendering — Functions to run the rendering pipeline
Fonts — Structures representing abstract fonts
Glyphs — Structures for storing information about glyphs
Attributes — Font and other attributes for annotating text
Markup — Simple markup language for text with attributes
Layout Objects — High-level layout driver objects
Scripts and Languages — Identifying writing systems and languages
Bidirectional Text — Types and functions for bidirectional text
Vertical Text — Laying text out in vertical directions
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docs/html/pango-Coverage-Maps.html0000664000175000017500000006467114002404370017233 0ustar mclasenmclasen Coverage Maps: Pango Reference Manual

Coverage Maps

Coverage Maps — Unicode character range coverage storage

Functions

PangoCoverage * pango_coverage_new ()
PangoCoverage * pango_coverage_ref ()
void pango_coverage_unref ()
PangoCoverage * pango_coverage_copy ()
PangoCoverageLevel pango_coverage_get ()
void pango_coverage_max ()
void pango_coverage_set ()
void pango_coverage_to_bytes ()
PangoCoverage * pango_coverage_from_bytes ()

Types and Values

enum PangoCoverageLevel
#define PANGO_TYPE_COVERAGE_LEVEL
  PangoCoverage

Object Hierarchy

    GEnum
    ╰── PangoCoverageLevel
    GObject
    ╰── PangoCoverage

Description

It is often necessary in Pango to determine if a particular font can represent a particular character, and also how well it can represent that character. The PangoCoverage is a data structure that is used to represent that information.

Functions

pango_coverage_new ()

PangoCoverage *
pango_coverage_new (void);

Create a new PangoCoverage

Returns

the newly allocated PangoCoverage, initialized to PANGO_COVERAGE_NONE with a reference count of one, which should be freed with pango_coverage_unref().

pango_coverage_ref ()

PangoCoverage *
pango_coverage_ref (PangoCoverage *coverage);

Increase the reference count on the PangoCoverage by one

Parameters

coverage

a PangoCoverage.

[not nullable]

Returns

coverage .

[transfer full]

pango_coverage_unref ()

void
pango_coverage_unref (PangoCoverage *coverage);

Decrease the reference count on the PangoCoverage by one. If the result is zero, free the coverage and all associated memory.

Parameters

coverage

a PangoCoverage.

[transfer full][not nullable]

pango_coverage_copy ()

PangoCoverage *
pango_coverage_copy (PangoCoverage *coverage);

Copy an existing PangoCoverage. (This function may now be unnecessary since we refcount the structure. File a bug if you use it.)

Parameters

coverage

a PangoCoverage

  

Returns

the newly allocated PangoCoverage, with a reference count of one, which should be freed with pango_coverage_unref().

[transfer full]

pango_coverage_get ()

PangoCoverageLevel
pango_coverage_get (PangoCoverage *coverage,
                    int index_);

Determine whether a particular index is covered by coverage

Parameters

coverage

a PangoCoverage

  

index_

the index to check

  

Returns

the coverage level of coverage for character index_ .

pango_coverage_max ()

void
pango_coverage_max (PangoCoverage *coverage,
                    PangoCoverage *other);

pango_coverage_max has been deprecated since version 1.44 and should not be used in newly-written code.

This function does nothing

Set the coverage for each index in coverage to be the max (better) value of the current coverage for the index and the coverage for the corresponding index in other .

Parameters

coverage

a PangoCoverage

  

other

another PangoCoverage

  

pango_coverage_set ()

void
pango_coverage_set (PangoCoverage *coverage,
                    int index_,
                    PangoCoverageLevel level);

Modify a particular index within coverage

Parameters

coverage

a PangoCoverage

  

index_

the index to modify

  

level

the new level for index_

 

pango_coverage_to_bytes ()

void
pango_coverage_to_bytes (PangoCoverage *coverage,
                         guchar **bytes,
                         int *n_bytes);

pango_coverage_to_bytes has been deprecated since version 1.44 and should not be used in newly-written code.

This returns NULL

Convert a PangoCoverage structure into a flat binary format

Parameters

coverage

a PangoCoverage

  

bytes

location to store result (must be freed with g_free()).

[out][array length=n_bytes][element-type guint8]

n_bytes

location to store size of result.

[out]

pango_coverage_from_bytes ()

PangoCoverage *
pango_coverage_from_bytes (guchar *bytes,
                           int n_bytes);

pango_coverage_from_bytes has been deprecated since version 1.44 and should not be used in newly-written code.

This returns NULL

Convert data generated from pango_coverage_to_bytes() back to a PangoCoverage

Parameters

bytes

binary data representing a PangoCoverage.

[array length=n_bytes][element-type guint8]

n_bytes

the size of bytes in bytes

  

Returns

a newly allocated PangoCoverage, or NULL if the data was invalid.

[transfer full][nullable]

Types and Values

enum PangoCoverageLevel

Used to indicate how well a font can represent a particular Unicode character point for a particular script.

Since 1.44, only PANGO_COVERAGE_NONE and PANGO_COVERAGE_EXACT will be returned.

Members

PANGO_COVERAGE_NONE

The character is not representable with the font.

  

PANGO_COVERAGE_FALLBACK

The character is represented in a way that may be comprehensible but is not the correct graphical form. For instance, a Hangul character represented as a a sequence of Jamos, or a Latin transliteration of a Cyrillic word.

  

PANGO_COVERAGE_APPROXIMATE

The character is represented as basically the correct graphical form, but with a stylistic variant inappropriate for the current script.

  

PANGO_COVERAGE_EXACT

The character is represented as the correct graphical form.

  

PANGO_TYPE_COVERAGE_LEVEL

#define PANGO_TYPE_COVERAGE_LEVEL (pango_coverage_level_get_type ())

PangoCoverage

typedef struct _PangoCoverage PangoCoverage;

The PangoCoverage structure represents a map from Unicode characters to PangoCoverageLevel. It is an opaque structure with no public fields.

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docs/html/pango-Engines.html0000664000175000017500000004065014002404370016161 0ustar mclasenmclasen Engines: Pango Reference Manual

Engines

Engines — Language-specific and rendering-system-specific processing

Functions

void script_engine_list ()
void script_engine_init ()
void script_engine_exit ()
PangoEngine * script_engine_create ()

Types and Values

struct PangoEngineInfo
struct PangoEngineScriptInfo
struct PangoEngine
struct PangoEngineClass

Object Hierarchy

    GObject
    ╰── PangoEngine
        ├── PangoEngineLang
        ╰── PangoEngineShape

Description

Pango used to have a module architecture in which the language-specific and render-system-specific components are provided by loadable modules.

This is no longer the case, and all the APIs related to modules and engines should not be used anymore.

Functions

script_engine_list ()

void
script_engine_list (PangoEngineInfo **engines,
                    int *n_engines);

script_engine_list has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

Parameters

engines

location to store a pointer to an array of engines.

  

n_engines

location to store the number of elements in engines .

  

script_engine_init ()

void
script_engine_init (GTypeModule *module);

script_engine_init has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

Parameters

module

a GTypeModule structure used to associate any GObject types created in this module with the module.

  

script_engine_exit ()

void
script_engine_exit (void);

script_engine_exit has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

script_engine_create ()

PangoEngine *
script_engine_create (const char *id);

script_engine_create has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

Parameters

id

the ID of an engine as reported by script_engine_list.

  

Types and Values

struct PangoEngineInfo

struct PangoEngineInfo {
  const gchar *id;
  const gchar *engine_type;
  const gchar *render_type;
  PangoEngineScriptInfo *scripts;
  gint n_scripts;
};

PangoEngineInfo has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoEngineInfo structure contains information about a particular engine. It contains the following fields:

Members

const gchar *id;

a unique string ID for the engine.

  

const gchar *engine_type;

a string identifying the engine type.

  

const gchar *render_type;

a string identifying the render type.

  

PangoEngineScriptInfo *scripts;

array of scripts this engine supports.

  

gint n_scripts;

number of items in scripts .

  

struct PangoEngineScriptInfo

struct PangoEngineScriptInfo {
  PangoScript script;
  const gchar *langs;
};

PangoEngineScriptInfo has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoEngineScriptInfo structure contains information about how the shaper covers a particular script.

Members

PangoScript script;

a PangoScript. The value PANGO_SCRIPT_COMMON has the special meaning here of "all scripts"

  

const gchar *langs;

a semicolon separated list of languages that this engine handles for this script. This may be empty, in which case the engine is saying that it is a fallback choice for all languages for this range, but should not be used if another engine indicates that it is specific for the language for a given code point. An entry in this list of "*" indicates that this engine is specific to all languages for this range.

  

struct PangoEngine

struct PangoEngine;

PangoEngine has been deprecated since version 1.38 and should not be used in newly-written code.

PangoEngine is the base class for all types of language and script specific engines. It has no functionality by itself.

struct PangoEngineClass

struct PangoEngineClass {
};

PangoEngineClass has been deprecated since version 1.38 and should not be used in newly-written code.

Class structure for PangoEngine

Generated by GTK-Doc V1.33.0
docs/html/pango-Xft-Fonts-and-Rendering.html0000664000175000017500000020367714002404370021106 0ustar mclasenmclasen Xft Fonts and Rendering: Pango Reference Manual

Xft Fonts and Rendering

Xft Fonts and Rendering — Font handling and rendering with the Xft backend

Functions

PangoContext * pango_xft_get_context ()
PangoFontMap * pango_xft_get_font_map ()
void pango_xft_set_default_substitute ()
void (*PangoXftSubstituteFunc) ()
void pango_xft_substitute_changed ()
void pango_xft_shutdown_display ()
XftFont * pango_xft_font_get_font ()
Display * pango_xft_font_get_display ()
gboolean pango_xft_font_has_char ()
FT_Face pango_xft_font_lock_face ()
void pango_xft_font_unlock_face ()
guint pango_xft_font_get_glyph ()
PangoGlyph pango_xft_font_get_unknown_glyph ()
PangoRenderer * pango_xft_renderer_new ()
void pango_xft_renderer_set_draw ()
void pango_xft_renderer_set_default_color ()
void pango_xft_render ()
void pango_xft_picture_render ()
void pango_xft_render_transformed ()
void pango_xft_render_layout_line ()
void pango_xft_render_layout ()

Properties

gpointer display Write / Construct Only
int screen Write / Construct Only

Types and Values

  PangoXftFont
  PangoXftFontMap
struct PangoXftRenderer
struct PangoXftRendererClass

Object Hierarchy

    GObject
    ├── PangoFont
    │   ╰── PangoFcFont
    │       ╰── PangoXftFont
    ├── PangoFontMap
    │   ╰── PangoFcFontMap
    │       ╰── PangoXftFontMap
    ╰── PangoRenderer
        ╰── PangoXftRenderer

Implemented Interfaces

PangoXftFontMap implements GListModel.

Description

The Xft library is a library for displaying fonts on the X window system; internally it uses the fontconfig library to locate font files, and the FreeType library to load and render fonts. The Xft backend is the recommended Pango font backend for screen display with X. (The Cairo back end is another possibility.)

Using the Xft backend is generally straightforward; pango_xft_get_context() creates a context for a specified display and screen. You can then create a PangoLayout with that context and render it with pango_xft_render_layout(). At a more advanced level, the low-level fontconfig options used for rendering fonts can be affected using pango_xft_set_default_substitute(), and pango_xft_substitute_changed().

A range of functions for drawing pieces of a layout, such as individual layout lines and glyphs strings are provided. You can also directly create a PangoXftRenderer. Finally, in some advanced cases, it is useful to derive from PangoXftRenderer. Deriving from PangoXftRenderer is useful for two reasons. One reason is be to support custom attributes by overriding PangoRendererClass virtual functions like 'prepare_run' or 'draw_shape'. The reason is to customize exactly how the final bits are drawn to the destination by overriding the PangoXftRendererClass virtual functions 'composite_glyphs' and 'composite_trapezoids'.

Functions

pango_xft_get_context ()

PangoContext *
pango_xft_get_context (Display *display,
                       int screen);

pango_xft_get_context has been deprecated since version 1.22 and should not be used in newly-written code.

Use pango_xft_get_font_map() followed by pango_font_map_create_context() instead.

Retrieves a PangoContext appropriate for rendering with Xft fonts on the given screen of the given display.

[skip]

Parameters

display

an X display.

  

screen

an X screen.

  

Returns

the new PangoContext.

pango_xft_get_font_map ()

PangoFontMap *
pango_xft_get_font_map (Display *display,
                        int screen);

Returns the PangoXftFontMap for the given display and screen. The fontmap is owned by Pango and will be valid until the display is closed.

Parameters

display

an X display

  

screen

the screen number of a screen within display

 

Returns

a PangoFontMap object, owned by Pango.

[transfer none]

Since: 1.2

pango_xft_set_default_substitute ()

void
pango_xft_set_default_substitute (Display *display,
                                  int screen,
                                  PangoXftSubstituteFunc func,
                                  gpointer data,
                                  GDestroyNotify notify);

pango_xft_set_default_substitute has been deprecated since version 1.46 and should not be used in newly-written code.

Use pango_fc_font_map_set_default_substitute() instead.

Sets a function that will be called to do final configuration substitution on a FcPattern before it is used to load the font. This function can be used to do things like set hinting and antialiasing options.

Parameters

display

an X Display

  

screen

the screen number of a screen within display

 

func

function to call to to do final config tweaking on FcPattern objects.

  

data

data to pass to func

 

notify

function to call when data is no longer used.

  

Since: 1.2

PangoXftSubstituteFunc ()

void
(*PangoXftSubstituteFunc) (FcPattern *pattern,
                           gpointer data);

Function type for doing final config tweaking on prepared FcPatterns.

Parameters

pattern

the FcPattern to tweak.

  

data

user data.

  

pango_xft_substitute_changed ()

void
pango_xft_substitute_changed (Display *display,
                              int screen);

pango_xft_substitute_changed has been deprecated since version 1.46 and should not be used in newly-written code.

Use pango_fc_font_map_substitute_changed() instead.

Call this function any time the results of the default substitution function set with pango_xft_set_default_substitute() change. That is, if your substitution function will return different results for the same input pattern, you must call this function.

Parameters

display

an X Display

  

screen

the screen number of a screen within display

 

Since: 1.2

pango_xft_shutdown_display ()

void
pango_xft_shutdown_display (Display *display,
                            int screen);

Release any resources that have been cached for the combination of display and screen . Note that when the X display is closed, resources are released automatically, without needing to call this function.

Parameters

display

an X display

  

screen

the screen number of a screen within display

 

Since: 1.2

pango_xft_font_get_font ()

XftFont *
pango_xft_font_get_font (PangoFont *font);

pango_xft_font_get_font is deprecated and should not be used in newly-written code.

Returns the XftFont of a font.

[skip]

Parameters

font

a PangoFont.

[nullable]

Returns

the XftFont associated to font , or NULL if font is NULL.

[nullable]

pango_xft_font_get_display ()

Display *
pango_xft_font_get_display (PangoFont *font);

pango_xft_font_get_display is deprecated and should not be used in newly-written code.

Returns the X display of the XftFont of a font.

[skip]

Parameters

font

a PangoFont.

[type PangoXftFont]

Returns

the X display of the XftFont associated to font .

[transfer none]

pango_xft_font_has_char ()

gboolean
pango_xft_font_has_char (PangoFont *font,
                         gunichar wc);

pango_xft_font_has_char is deprecated and should not be used in newly-written code.

Determines whether font has a glyph for the codepoint wc .

Use pango_fc_font_has_char() instead.

Parameters

font

a PangoFont for the Xft backend.

[type PangoXftFont]

wc

Unicode codepoint to look up

  

Returns

TRUE if font has the requested codepoint.

Since: 1.2

pango_xft_font_lock_face ()

FT_Face
pango_xft_font_lock_face (PangoFont *font);

pango_xft_font_lock_face is deprecated and should not be used in newly-written code.

Gets the FreeType FT_Face associated with a font.

This face will be kept around until you call pango_xft_font_unlock_face().

Use pango_fc_font_lock_face() instead.

[skip]

Parameters

font

a PangoFont.

[type PangoXftFont]

Returns

the FreeType FT_Face associated with font .

Since: 1.2

pango_xft_font_unlock_face ()

void
pango_xft_font_unlock_face (PangoFont *font);

pango_xft_font_unlock_face is deprecated and should not be used in newly-written code.

Releases a font previously obtained with pango_xft_font_lock_face().

Use pango_fc_font_unlock_face() instead.

[skip]

Parameters

font

a PangoFont.

[type PangoXftFont]

Since: 1.2

pango_xft_font_get_glyph ()

guint
pango_xft_font_get_glyph (PangoFont *font,
                          gunichar wc);

pango_xft_font_get_glyph is deprecated and should not be used in newly-written code.

Gets the glyph index for a given Unicode character for font . If you only want to determine whether the font has the glyph, use pango_xft_font_has_char().

Use pango_fc_font_get_glyph() instead.

Parameters

font

a PangoFont for the Xft backend.

[type PangoXftFont]

wc

Unicode codepoint to look up

  

Returns

the glyph index, or 0, if the Unicode character does not exist in the font.

Since: 1.2

pango_xft_font_get_unknown_glyph ()

PangoGlyph
pango_xft_font_get_unknown_glyph (PangoFont *font,
                                  gunichar wc);

pango_xft_font_get_unknown_glyph is deprecated and should not be used in newly-written code.

Returns the index of a glyph suitable for drawing wc as an unknown character.

Use PANGO_GET_UNKNOWN_GLYPH() instead.

Parameters

font

a PangoFont.

[type PangoXftFont]

wc

the Unicode character for which a glyph is needed.

  

Returns

a glyph index into font .

pango_xft_renderer_new ()

PangoRenderer *
pango_xft_renderer_new (Display *display,
                        int screen);

Create a new PangoXftRenderer to allow rendering Pango objects with the Xft library. You must call pango_xft_renderer_set_draw() before using the renderer.

Parameters

display

an X display

  

screen

the index of the screen for display to which rendering will be done

  

Returns

the newly created PangoXftRenderer, which should be freed with g_object_unref().

Since: 1.8

pango_xft_renderer_set_draw ()

void
pango_xft_renderer_set_draw (PangoXftRenderer *xftrenderer,
                             XftDraw *draw);

Sets the XftDraw object that the renderer is drawing to. The renderer must not be currently active.

Parameters

xftrenderer

a PangoXftRenderer

  

draw

a XftDraw

  

Since: 1.8

pango_xft_renderer_set_default_color ()

void
pango_xft_renderer_set_default_color (PangoXftRenderer *xftrenderer,
                                      PangoColor *default_color);

Sets the default foreground color for a XftRenderer.

Parameters

xftrenderer

a XftRenderer

  

default_color

the default foreground color

  

Since: 1.8

pango_xft_render ()

void
pango_xft_render (XftDraw *draw,
                  XftColor *color,
                  PangoFont *font,
                  PangoGlyphString *glyphs,
                  gint x,
                  gint y);

Renders a PangoGlyphString onto an XftDraw object wrapping an X drawable.

Parameters

draw

the XftDraw object.

  

color

the color in which to draw the string

  

font

the font in which to draw the string

  

glyphs

the glyph string to draw

  

x

the x position of start of string (in pixels)

  

y

the y position of baseline (in pixels)

  

pango_xft_picture_render ()

void
pango_xft_picture_render (Display *display,
                          Picture src_picture,
                          Picture dest_picture,
                          PangoFont *font,
                          PangoGlyphString *glyphs,
                          gint x,
                          gint y);

Renders a PangoGlyphString onto an Xrender Picture object.

Parameters

display

an X display

  

src_picture

the source picture to draw the string with

  

dest_picture

the destination picture to draw the string onto

  

font

the font in which to draw the string

  

glyphs

the glyph string to draw

  

x

the x position of start of string (in pixels)

  

y

the y position of baseline (in pixels)

  

pango_xft_render_transformed ()

void
pango_xft_render_transformed (XftDraw *draw,
                              XftColor *color,
                              PangoMatrix *matrix,
                              PangoFont *font,
                              PangoGlyphString *glyphs,
                              int x,
                              int y);

Renders a PangoGlyphString onto a XftDraw, possibly transforming the layed-out coordinates through a transformation matrix. Note that the transformation matrix for font is not changed, so to produce correct rendering results, the font must have been loaded using a PangoContext with an identical transformation matrix to that passed in to this function.

Parameters

draw

an XftDraw

  

color

the color in which to draw the glyphs

  

font

the font in which to draw the string

  

matrix

a PangoMatrix, or NULL to use an identity transformation.

[nullable]

glyphs

the glyph string to draw

  

x

the x position of the start of the string (in Pango units in user space coordinates)

  

y

the y position of the baseline (in Pango units in user space coordinates)

  

Since: 1.8

pango_xft_render_layout_line ()

void
pango_xft_render_layout_line (XftDraw *draw,
                              XftColor *color,
                              PangoLayoutLine *line,
                              int x,
                              int y);

Render a PangoLayoutLine onto a XftDraw

Parameters

draw

an XftDraw

  

color

the foreground color in which to draw the layout line (may be overridden by color attributes)

  

line

a PangoLayoutLine

  

x

the x position of start of string (in Pango units)

  

y

the y position of baseline (in Pango units)

  

Since: 1.8

pango_xft_render_layout ()

void
pango_xft_render_layout (XftDraw *draw,
                         XftColor *color,
                         PangoLayout *layout,
                         int x,
                         int y);

Render a PangoLayout onto a XftDraw

Parameters

draw

an XftDraw

  

color

the foreground color in which to draw the layout (may be overridden by color attributes)

  

layout

a PangoLayout

  

x

the X position of the left of the layout (in Pango units)

  

y

the Y position of the top of the layout (in Pango units)

  

Since: 1.8

Types and Values

PangoXftFont

typedef struct _PangoXftFont PangoXftFont;

PangoXftFont is an implementation of PangoFcFont using the Xft library for rendering. It is used in conjunction with PangoXftFontMap.

PangoXftFontMap

typedef struct _PangoXftFontMap PangoXftFontMap;

PangoXftFontMap is an implementation of PangoFcFontMap suitable for the Xft library as the renderer. It is used in to create fonts of type PangoXftFont.

struct PangoXftRenderer

struct PangoXftRenderer;

PangoXftRenderer is a subclass of PangoRenderer used for rendering with Pango's Xft backend. It can be used directly, or it can be further subclassed to modify exactly how drawing of individual elements occurs.

Since: 1.8

struct PangoXftRendererClass

struct PangoXftRendererClass {
  void (*composite_trapezoids) (PangoXftRenderer *xftrenderer,
				PangoRenderPart   part,
				XTrapezoid       *trapezoids,
				int               n_trapezoids);
  void (*composite_glyphs)     (PangoXftRenderer *xftrenderer,
				XftFont          *xft_font,
				XftGlyphSpec     *glyphs,
				int               n_glyphs);
};

The class structure for PangoXftRenderer

Members

composite_trapezoids ()

draw the specified trapezoids using the current color and other attributes for part

 

composite_glyphs ()

draw the specified glyphs using the current foreground color and other foreground attributes

  

Since: 1.8

Property Details

The “display†property

  “display†                 gpointer

The display being rendered to.

Owner: PangoXftRenderer

Flags: Write / Construct Only

The “screen†property

  “screen†                  int

The screen being rendered to.

Owner: PangoXftRenderer

Flags: Write / Construct Only

Allowed values: >= 0

Default value: 0

Generated by GTK-Doc V1.33.0
docs/html/rendering.html0000664000175000017500000000515714002404370015447 0ustar mclasenmclasen Rendering with Pango: Pango Reference Manual

Rendering with Pango

Cairo Fonts and Rendering — Font handling and rendering with Cairo
Win32 Fonts and Rendering — Font handling and rendering on Windows
CoreText Fonts and Rendering — Font handling and rendering on OS X
FreeType Fonts and Rendering — Font handling and rendering with FreeType
Xft Fonts and Rendering — Font handling and rendering with the Xft backend
Generated by GTK-Doc V1.33.0
docs/html/pango-Fonts.html0000664000175000017500000064257014002404370015673 0ustar mclasenmclasen Fonts: Pango Reference Manual

Fonts

Fonts — Structures representing abstract fonts

Functions

PangoFontDescription * pango_font_description_new ()
PangoFontDescription * pango_font_description_copy ()
PangoFontDescription * pango_font_description_copy_static ()
guint pango_font_description_hash ()
gboolean pango_font_description_equal ()
void pango_font_description_free ()
void pango_font_descriptions_free ()
void pango_font_description_set_family ()
void pango_font_description_set_family_static ()
const char * pango_font_description_get_family ()
void pango_font_description_set_style ()
PangoStyle pango_font_description_get_style ()
void pango_font_description_set_variant ()
PangoVariant pango_font_description_get_variant ()
void pango_font_description_set_weight ()
PangoWeight pango_font_description_get_weight ()
void pango_font_description_set_stretch ()
PangoStretch pango_font_description_get_stretch ()
void pango_font_description_set_size ()
gint pango_font_description_get_size ()
void pango_font_description_set_absolute_size ()
gboolean pango_font_description_get_size_is_absolute ()
void pango_font_description_set_gravity ()
PangoGravity pango_font_description_get_gravity ()
void pango_font_description_set_variations ()
void pango_font_description_set_variations_static ()
const char * pango_font_description_get_variations ()
PangoFontMask pango_font_description_get_set_fields ()
void pango_font_description_unset_fields ()
void pango_font_description_merge ()
void pango_font_description_merge_static ()
gboolean pango_font_description_better_match ()
PangoFontDescription * pango_font_description_from_string ()
char * pango_font_description_to_string ()
char * pango_font_description_to_filename ()
PangoFontMetrics * pango_font_metrics_ref ()
void pango_font_metrics_unref ()
int pango_font_metrics_get_ascent ()
int pango_font_metrics_get_descent ()
int pango_font_metrics_get_height ()
int pango_font_metrics_get_approximate_char_width ()
int pango_font_metrics_get_approximate_digit_width ()
int pango_font_metrics_get_underline_thickness ()
int pango_font_metrics_get_underline_position ()
int pango_font_metrics_get_strikethrough_thickness ()
int pango_font_metrics_get_strikethrough_position ()
PangoEngineShape * pango_font_find_shaper ()
PangoFontDescription * pango_font_describe ()
PangoFontDescription * pango_font_describe_with_absolute_size ()
PangoFontFace * pango_font_get_face ()
PangoCoverage * pango_font_get_coverage ()
gboolean pango_font_has_char ()
void pango_font_get_glyph_extents ()
PangoFontMetrics * pango_font_get_metrics ()
PangoFontMap * pango_font_get_font_map ()
void pango_font_get_features ()
hb_font_t * pango_font_get_hb_font ()
const char * pango_font_family_get_name ()
gboolean pango_font_family_is_monospace ()
gboolean pango_font_family_is_variable ()
void pango_font_family_list_faces ()
PangoFontFace * pango_font_family_get_face ()
const char * pango_font_face_get_face_name ()
void pango_font_face_list_sizes ()
PangoFontDescription * pango_font_face_describe ()
gboolean pango_font_face_is_synthesized ()
PangoFontFamily * pango_font_face_get_family ()
PangoContext * pango_font_map_create_context ()
PangoFont * pango_font_map_load_font ()
PangoFontset * pango_font_map_load_fontset ()
void pango_font_map_list_families ()
PangoFontFamily * pango_font_map_get_family ()
guint pango_font_map_get_serial ()
void pango_font_map_changed ()
PangoFont * pango_fontset_get_font ()
PangoFontMetrics * pango_fontset_get_metrics ()
gboolean (*PangoFontsetForeachFunc) ()
void pango_fontset_foreach ()

Types and Values

  PangoFontDescription
enum PangoStyle
enum PangoWeight
enum PangoVariant
enum PangoStretch
enum PangoFontMask
struct PangoFontMetrics
  PangoFont
struct PangoFontFamily
struct PangoFontFace
  PangoFontMap
struct PangoFontMapClass
struct PangoFontset
struct PangoFontsetClass

Object Hierarchy

    GBoxed
    ├── PangoFontDescription
    ╰── PangoFontMetrics
    GEnum
    ├── PangoStretch
    ├── PangoStyle
    ├── PangoVariant
    ╰── PangoWeight
    GFlags
    ╰── PangoFontMask
    GObject
    ├── PangoFont
    │   ╰── PangoFcFont
    ├── PangoFontFace
    ├── PangoFontFamily
    ├── PangoFontMap
    │   ╰── PangoFcFontMap
    ╰── PangoFontset

Known Derived Interfaces

PangoFont is required by PangoCairoFont.

PangoFontMap is required by PangoCairoFontMap.

Implemented Interfaces

PangoFontFamily implements GListModel.

PangoFontMap implements GListModel.

Description

Pango supports a flexible architecture where a particular rendering architecture can supply an implementation of fonts. The PangoFont structure represents an abstract rendering-system-independent font. Pango provides routines to list available fonts, and to load a font matching a given description.

Functions

pango_font_description_new ()

PangoFontDescription *
pango_font_description_new (void);

Creates a new font description structure with all fields unset.

Returns

the newly allocated PangoFontDescription, which should be freed using pango_font_description_free().

pango_font_description_copy ()

PangoFontDescription *
pango_font_description_copy (const PangoFontDescription *desc);

Make a copy of a PangoFontDescription.

Parameters

desc

a PangoFontDescription, may be NULL.

[nullable]

Returns

the newly allocated PangoFontDescription, which should be freed with pango_font_description_free(), or NULL if desc was NULL.

[nullable]

pango_font_description_copy_static ()

PangoFontDescription *
pango_font_description_copy_static (const PangoFontDescription *desc);

Like pango_font_description_copy(), but only a shallow copy is made of the family name and other allocated fields. The result can only be used until desc is modified or freed. This is meant to be used when the copy is only needed temporarily.

Parameters

desc

a PangoFontDescription, may be NULL.

[nullable]

Returns

the newly allocated PangoFontDescription, which should be freed with pango_font_description_free(), or NULL if desc was NULL.

[nullable]

pango_font_description_hash ()

guint
pango_font_description_hash (const PangoFontDescription *desc);

Computes a hash of a PangoFontDescription structure suitable to be used, for example, as an argument to g_hash_table_new(). The hash value is independent of desc->mask .

Parameters

desc

a PangoFontDescription

  

Returns

the hash value.

pango_font_description_equal ()

gboolean
pango_font_description_equal (const PangoFontDescription *desc1,
                              const PangoFontDescription *desc2);

Compares two font descriptions for equality. Two font descriptions are considered equal if the fonts they describe are provably identical. This means that their masks do not have to match, as long as other fields are all the same. (Two font descriptions may result in identical fonts being loaded, but still compare FALSE.)

Parameters

desc1

a PangoFontDescription

  

desc2

another PangoFontDescription

  

Returns

TRUE if the two font descriptions are identical, FALSE otherwise.

pango_font_description_free ()

void
pango_font_description_free (PangoFontDescription *desc);

Frees a font description.

Parameters

desc

a PangoFontDescription, may be NULL.

[nullable]

pango_font_descriptions_free ()

void
pango_font_descriptions_free (PangoFontDescription **descs,
                              int n_descs);

Frees an array of font descriptions.

Parameters

descs

a pointer to an array of PangoFontDescription, may be NULL.

[allow-none][array length=n_descs][transfer full]

n_descs

number of font descriptions in descs

 

pango_font_description_set_family ()

void
pango_font_description_set_family (PangoFontDescription *desc,
                                   const char *family);

Sets the family name field of a font description. The family name represents a family of related font styles, and will resolve to a particular PangoFontFamily. In some uses of PangoFontDescription, it is also possible to use a comma separated list of family names for this field.

Parameters

desc

a PangoFontDescription.

  

family

a string representing the family name.

  

pango_font_description_set_family_static ()

void
pango_font_description_set_family_static
                               (PangoFontDescription *desc,
                                const char *family);

Like pango_font_description_set_family(), except that no copy of family is made. The caller must make sure that the string passed in stays around until desc has been freed or the name is set again. This function can be used if family is a static string such as a C string literal, or if desc is only needed temporarily.

Parameters

desc

a PangoFontDescription

  

family

a string representing the family name.

  

pango_font_description_get_family ()

const char *
pango_font_description_get_family (const PangoFontDescription *desc);

Gets the family name field of a font description. See pango_font_description_set_family().

Parameters

desc

a PangoFontDescription.

  

Returns

the family name field for the font description, or NULL if not previously set. This has the same life-time as the font description itself and should not be freed.

[nullable]

pango_font_description_set_style ()

void
pango_font_description_set_style (PangoFontDescription *desc,
                                  PangoStyle style);

Sets the style field of a PangoFontDescription. The PangoStyle enumeration describes whether the font is slanted and the manner in which it is slanted; it can be either PANGO_STYLE_NORMAL, PANGO_STYLE_ITALIC, or PANGO_STYLE_OBLIQUE. Most fonts will either have a italic style or an oblique style, but not both, and font matching in Pango will match italic specifications with oblique fonts and vice-versa if an exact match is not found.

Parameters

desc

a PangoFontDescription

  

style

the style for the font description

  

pango_font_description_get_style ()

PangoStyle
pango_font_description_get_style (const PangoFontDescription *desc);

Gets the style field of a PangoFontDescription. See pango_font_description_set_style().

Parameters

desc

a PangoFontDescription

  

Returns

the style field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not.

pango_font_description_set_variant ()

void
pango_font_description_set_variant (PangoFontDescription *desc,
                                    PangoVariant variant);

Sets the variant field of a font description. The PangoVariant can either be PANGO_VARIANT_NORMAL or PANGO_VARIANT_SMALL_CAPS.

Parameters

desc

a PangoFontDescription

  

variant

the variant type for the font description.

  

pango_font_description_get_variant ()

PangoVariant
pango_font_description_get_variant (const PangoFontDescription *desc);

Gets the variant field of a PangoFontDescription. See pango_font_description_set_variant().

Parameters

desc

a PangoFontDescription.

  

Returns

the variant field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not.

pango_font_description_set_weight ()

void
pango_font_description_set_weight (PangoFontDescription *desc,
                                   PangoWeight weight);

Sets the weight field of a font description. The weight field specifies how bold or light the font should be. In addition to the values of the PangoWeight enumeration, other intermediate numeric values are possible.

Parameters

desc

a PangoFontDescription

  

weight

the weight for the font description.

  

pango_font_description_get_weight ()

PangoWeight
pango_font_description_get_weight (const PangoFontDescription *desc);

Gets the weight field of a font description. See pango_font_description_set_weight().

Parameters

desc

a PangoFontDescription

  

Returns

the weight field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not.

pango_font_description_set_stretch ()

void
pango_font_description_set_stretch (PangoFontDescription *desc,
                                    PangoStretch stretch);

Sets the stretch field of a font description. The stretch field specifies how narrow or wide the font should be.

Parameters

desc

a PangoFontDescription

  

stretch

the stretch for the font description

  

pango_font_description_get_stretch ()

PangoStretch
pango_font_description_get_stretch (const PangoFontDescription *desc);

Gets the stretch field of a font description. See pango_font_description_set_stretch().

Parameters

desc

a PangoFontDescription.

  

Returns

the stretch field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not.

pango_font_description_set_size ()

void
pango_font_description_set_size (PangoFontDescription *desc,
                                 gint size);

Sets the size field of a font description in fractional points. This is mutually exclusive with pango_font_description_set_absolute_size().

Parameters

desc

a PangoFontDescription

  

size

the size of the font in points, scaled by PANGO_SCALE. (That is, a size value of 10 * PANGO_SCALE is a 10 point font. The conversion factor between points and device units depends on system configuration and the output device. For screen display, a logical DPI of 96 is common, in which case a 10 point font corresponds to a 10 * (96 / 72) = 13.3 pixel font. Use pango_font_description_set_absolute_size() if you need a particular size in device units.

  

pango_font_description_get_size ()

gint
pango_font_description_get_size (const PangoFontDescription *desc);

Gets the size field of a font description. See pango_font_description_set_size().

Parameters

desc

a PangoFontDescription

  

Returns

the size field for the font description in points or device units. You must call pango_font_description_get_size_is_absolute() to find out which is the case. Returns 0 if the size field has not previously been set or it has been set to 0 explicitly. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not.

pango_font_description_set_absolute_size ()

void
pango_font_description_set_absolute_size
                               (PangoFontDescription *desc,
                                double size);

Sets the size field of a font description, in device units. This is mutually exclusive with pango_font_description_set_size() which sets the font size in points.

Parameters

desc

a PangoFontDescription

  

size

the new size, in Pango units. There are PANGO_SCALE Pango units in one device unit. For an output backend where a device unit is a pixel, a size value of 10 * PANGO_SCALE gives a 10 pixel font.

  

Since: 1.8

pango_font_description_get_size_is_absolute ()

gboolean
pango_font_description_get_size_is_absolute
                               (const PangoFontDescription *desc);

Determines whether the size of the font is in points (not absolute) or device units (absolute). See pango_font_description_set_size() and pango_font_description_set_absolute_size().

Parameters

desc

a PangoFontDescription

  

Returns

whether the size for the font description is in points or device units. Use pango_font_description_get_set_fields() to find out if the size field of the font description was explicitly set or not.

Since: 1.8

pango_font_description_set_gravity ()

void
pango_font_description_set_gravity (PangoFontDescription *desc,
                                    PangoGravity gravity);

Sets the gravity field of a font description. The gravity field specifies how the glyphs should be rotated. If gravity is PANGO_GRAVITY_AUTO, this actually unsets the gravity mask on the font description.

This function is seldom useful to the user. Gravity should normally be set on a PangoContext.

Parameters

desc

a PangoFontDescription

  

gravity

the gravity for the font description.

  

Since: 1.16

pango_font_description_get_gravity ()

PangoGravity
pango_font_description_get_gravity (const PangoFontDescription *desc);

Gets the gravity field of a font description. See pango_font_description_set_gravity().

Parameters

desc

a PangoFontDescription

  

Returns

the gravity field for the font description. Use pango_font_description_get_set_fields() to find out if the field was explicitly set or not.

Since: 1.16

pango_font_description_set_variations ()

void
pango_font_description_set_variations (PangoFontDescription *desc,
                                       const char *variations);

Sets the variations field of a font description. OpenType font variations allow to select a font instance by specifying values for a number of axes, such as width or weight.

The format of the variations string is AXIS1=VALUE,AXIS2=VALUE..., with each AXIS a 4 character tag that identifies a font axis, and each VALUE a floating point number. Unknown axes are ignored, and values are clamped to their allowed range.

Pango does not currently have a way to find supported axes of a font. Both harfbuzz or freetype have API for this.

Parameters

desc

a PangoFontDescription.

  

variations

a string representing the variations

  

Since: 1.42

pango_font_description_set_variations_static ()

void
pango_font_description_set_variations_static
                               (PangoFontDescription *desc,
                                const char *variations);

Like pango_font_description_set_variations(), except that no copy of variations is made. The caller must make sure that the string passed in stays around until desc has been freed or the name is set again. This function can be used if variations is a static string such as a C string literal, or if desc is only needed temporarily.

Parameters

desc

a PangoFontDescription

  

variations

a string representing the variations

  

Since: 1.42

pango_font_description_get_variations ()

const char *
pango_font_description_get_variations (const PangoFontDescription *desc);

Gets the variations field of a font description. See pango_font_description_set_variations().

Parameters

desc

a PangoFontDescription

  

Returns

the varitions field for the font description, or NULL if not previously set. This has the same life-time as the font description itself and should not be freed.

[nullable]

Since: 1.42

pango_font_description_get_set_fields ()

PangoFontMask
pango_font_description_get_set_fields (const PangoFontDescription *desc);

Determines which fields in a font description have been set.

Parameters

desc

a PangoFontDescription

  

Returns

a bitmask with bits set corresponding to the fields in desc that have been set.

pango_font_description_unset_fields ()

void
pango_font_description_unset_fields (PangoFontDescription *desc,
                                     PangoFontMask to_unset);

Unsets some of the fields in a PangoFontDescription. The unset fields will get back to their default values.

Parameters

desc

a PangoFontDescription

  

to_unset

bitmask of fields in the desc to unset.

  

pango_font_description_merge ()

void
pango_font_description_merge (PangoFontDescription *desc,
                              const PangoFontDescription *desc_to_merge,
                              gboolean replace_existing);

Merges the fields that are set in desc_to_merge into the fields in desc . If replace_existing is FALSE, only fields in desc that are not already set are affected. If TRUE, then fields that are already set will be replaced as well.

If desc_to_merge is NULL, this function performs nothing.

Parameters

desc

a PangoFontDescription

  

desc_to_merge

the PangoFontDescription to merge from, or NULL.

[allow-none]

replace_existing

if TRUE, replace fields in desc with the corresponding values from desc_to_merge , even if they are already exist.

  

pango_font_description_merge_static ()

void
pango_font_description_merge_static (PangoFontDescription *desc,
                                     const PangoFontDescription *desc_to_merge,
                                     gboolean replace_existing);

Like pango_font_description_merge(), but only a shallow copy is made of the family name and other allocated fields. desc can only be used until desc_to_merge is modified or freed. This is meant to be used when the merged font description is only needed temporarily.

Parameters

desc

a PangoFontDescription

  

desc_to_merge

the PangoFontDescription to merge from

  

replace_existing

if TRUE, replace fields in desc with the corresponding values from desc_to_merge , even if they are already exist.

  

pango_font_description_better_match ()

gboolean
pango_font_description_better_match (const PangoFontDescription *desc,
                                     const PangoFontDescription *old_match,
                                     const PangoFontDescription *new_match);

Determines if the style attributes of new_match are a closer match for desc than those of old_match are, or if old_match is NULL, determines if new_match is a match at all. Approximate matching is done for weight and style; other style attributes must match exactly. Style attributes are all attributes other than family and size-related attributes. Approximate matching for style considers PANGO_STYLE_OBLIQUE and PANGO_STYLE_ITALIC as matches, but not as good a match as when the styles are equal.

Note that old_match must match desc .

Parameters

desc

a PangoFontDescription

  

old_match

a PangoFontDescription, or NULL.

[allow-none]

new_match

a PangoFontDescription

  

Returns

TRUE if new_match is a better match

pango_font_description_from_string ()

PangoFontDescription *
pango_font_description_from_string (const char *str);

Creates a new font description from a string representation in the form

"[FAMILY-LIST] [STYLE-OPTIONS] [SIZE] [VARIATIONS]",

where FAMILY-LIST is a comma-separated list of families optionally terminated by a comma, STYLE_OPTIONS is a whitespace-separated list of words where each word describes one of style, variant, weight, stretch, or gravity, and SIZE is a decimal number (size in points) or optionally followed by the unit modifier "px" for absolute size. VARIATIONS is a comma-separated list of font variation specifications of the form "@axis=value" (the = sign is optional).

The following words are understood as styles: "Normal", "Roman", "Oblique", "Italic".

The following words are understood as variants: "Small-Caps".

The following words are understood as weights: "Thin", "Ultra-Light", "Extra-Light", "Light", "Semi-Light", "Demi-Light", "Book", "Regular", "Medium", "Semi-Bold", "Demi-Bold", "Bold", "Ultra-Bold", "Extra-Bold", "Heavy", "Black", "Ultra-Black", "Extra-Black".

The following words are understood as stretch values: "Ultra-Condensed", "Extra-Condensed", "Condensed", "Semi-Condensed", "Semi-Expanded", "Expanded", "Extra-Expanded", "Ultra-Expanded".

The following words are understood as gravity values: "Not-Rotated", "South", "Upside-Down", "North", "Rotated-Left", "East", "Rotated-Right", "West".

Any one of the options may be absent. If FAMILY-LIST is absent, then the family_name field of the resulting font description will be initialized to NULL. If STYLE-OPTIONS is missing, then all style options will be set to the default values. If SIZE is missing, the size in the resulting font description will be set to 0.

A typical example:

"Cantarell Italic Light 15 @wght=200"

Parameters

str

string representation of a font description.

  

Returns

a new PangoFontDescription.

pango_font_description_to_string ()

char *
pango_font_description_to_string (const PangoFontDescription *desc);

Creates a string representation of a font description. See pango_font_description_from_string() for a description of the format of the string representation. The family list in the string description will only have a terminating comma if the last word of the list is a valid style option.

Parameters

desc

a PangoFontDescription

  

Returns

a new string that must be freed with g_free().

pango_font_description_to_filename ()

char *
pango_font_description_to_filename (const PangoFontDescription *desc);

Creates a filename representation of a font description. The filename is identical to the result from calling pango_font_description_to_string(), but with underscores instead of characters that are untypical in filenames, and in lower case only.

Parameters

desc

a PangoFontDescription

  

Returns

a new string that must be freed with g_free().

pango_font_metrics_ref ()

PangoFontMetrics *
pango_font_metrics_ref (PangoFontMetrics *metrics);

Increase the reference count of a font metrics structure by one.

Parameters

metrics

a PangoFontMetrics structure, may be NULL.

[nullable]

Returns

metrics .

[nullable]

pango_font_metrics_unref ()

void
pango_font_metrics_unref (PangoFontMetrics *metrics);

Decrease the reference count of a font metrics structure by one. If the result is zero, frees the structure and any associated memory.

Parameters

metrics

a PangoFontMetrics structure, may be NULL.

[nullable]

pango_font_metrics_get_ascent ()

int
pango_font_metrics_get_ascent (PangoFontMetrics *metrics);

Gets the ascent from a font metrics structure. The ascent is the distance from the baseline to the logical top of a line of text. (The logical top may be above or below the top of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.)

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the ascent, in Pango units.

pango_font_metrics_get_descent ()

int
pango_font_metrics_get_descent (PangoFontMetrics *metrics);

Gets the descent from a font metrics structure. The descent is the distance from the baseline to the logical bottom of a line of text. (The logical bottom may be above or below the bottom of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.)

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the descent, in Pango units.

pango_font_metrics_get_height ()

int
pango_font_metrics_get_height (PangoFontMetrics *metrics);

Gets the line height from a font metrics structure. The line height is the distance between successive baselines in wrapped text.

If the line height is not available, 0 is returned.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the height, in Pango units

Since: 1.44

pango_font_metrics_get_approximate_char_width ()

int
pango_font_metrics_get_approximate_char_width
                               (PangoFontMetrics *metrics);

Gets the approximate character width for a font metrics structure. This is merely a representative value useful, for example, for determining the initial size for a window. Actual characters in text will be wider and narrower than this.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the character width, in Pango units.

pango_font_metrics_get_approximate_digit_width ()

int
pango_font_metrics_get_approximate_digit_width
                               (PangoFontMetrics *metrics);

Gets the approximate digit width for a font metrics structure. This is merely a representative value useful, for example, for determining the initial size for a window. Actual digits in text can be wider or narrower than this, though this value is generally somewhat more accurate than the result of pango_font_metrics_get_approximate_char_width() for digits.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the digit width, in Pango units.

pango_font_metrics_get_underline_thickness ()

int
pango_font_metrics_get_underline_thickness
                               (PangoFontMetrics *metrics);

Gets the suggested thickness to draw for the underline.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the suggested underline thickness, in Pango units.

Since: 1.6

pango_font_metrics_get_underline_position ()

int
pango_font_metrics_get_underline_position
                               (PangoFontMetrics *metrics);

Gets the suggested position to draw the underline. The value returned is the distance above the baseline of the top of the underline. Since most fonts have underline positions beneath the baseline, this value is typically negative.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the suggested underline position, in Pango units.

Since: 1.6

pango_font_metrics_get_strikethrough_thickness ()

int
pango_font_metrics_get_strikethrough_thickness
                               (PangoFontMetrics *metrics);

Gets the suggested thickness to draw for the strikethrough.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the suggested strikethrough thickness, in Pango units.

Since: 1.6

pango_font_metrics_get_strikethrough_position ()

int
pango_font_metrics_get_strikethrough_position
                               (PangoFontMetrics *metrics);

Gets the suggested position to draw the strikethrough. The value returned is the distance above the baseline of the top of the strikethrough.

Parameters

metrics

a PangoFontMetrics structure

  

Returns

the suggested strikethrough position, in Pango units.

Since: 1.6

pango_font_find_shaper ()

PangoEngineShape *
pango_font_find_shaper (PangoFont *font,
                        PangoLanguage *language,
                        guint32 ch);

pango_font_find_shaper is deprecated and should not be used in newly-written code.

Shape engines are no longer used

Finds the best matching shaper for a font for a particular language tag and character point.

Parameters

font

a PangoFont

  

language

the language tag

  

ch

a Unicode character.

  

Returns

the best matching shaper.

[transfer none]

pango_font_describe ()

PangoFontDescription *
pango_font_describe (PangoFont *font);

Returns a description of the font, with font size set in points. Use pango_font_describe_with_absolute_size() if you want the font size in device units.

Parameters

font

a PangoFont

  

Returns

a newly-allocated PangoFontDescription object.

pango_font_describe_with_absolute_size ()

PangoFontDescription *
pango_font_describe_with_absolute_size
                               (PangoFont *font);

Returns a description of the font, with absolute font size set (in device units). Use pango_font_describe() if you want the font size in points.

Parameters

font

a PangoFont

  

Returns

a newly-allocated PangoFontDescription object.

Since: 1.14

pango_font_get_face ()

PangoFontFace *
pango_font_get_face (PangoFont *font);

Gets the PangoFontFace to which font belongs.

Parameters

font

a PangoFont

  

Returns

the PangoFontFace.

[transfer none]

Since: 1.46

pango_font_get_coverage ()

PangoCoverage *
pango_font_get_coverage (PangoFont *font,
                         PangoLanguage *language);

Computes the coverage map for a given font and language tag.

Parameters

font

a PangoFont

  

language

the language tag

  

Returns

a newly-allocated PangoCoverage object.

[transfer full]

pango_font_has_char ()

gboolean
pango_font_has_char (PangoFont *font,
                     gunichar wc);

Returns whether the font provides a glyph for this character.

Returns TRUE if font can render wc

Parameters

font

a PangoFont

  

wc

a Unicode character

  

Since: 1.44

pango_font_get_glyph_extents ()

void
pango_font_get_glyph_extents (PangoFont *font,
                              PangoGlyph glyph,
                              PangoRectangle *ink_rect,
                              PangoRectangle *logical_rect);

Gets the logical and ink extents of a glyph within a font. The coordinate system for each rectangle has its origin at the base line and horizontal origin of the character with increasing coordinates extending to the right and down. The macros PANGO_ASCENT(), PANGO_DESCENT(), PANGO_LBEARING(), and PANGO_RBEARING() can be used to convert from the extents rectangle to more traditional font metrics. The units of the rectangles are in 1/PANGO_SCALE of a device unit.

If font is NULL, this function gracefully sets some sane values in the output variables and returns.

Parameters

font

a PangoFont.

[nullable]

glyph

the glyph index

  

ink_rect

rectangle used to store the extents of the glyph as drawn or NULL to indicate that the result is not needed.

[out][allow-none]

logical_rect

rectangle used to store the logical extents of the glyph or NULL to indicate that the result is not needed.

[out][allow-none]

pango_font_get_metrics ()

PangoFontMetrics *
pango_font_get_metrics (PangoFont *font,
                        PangoLanguage *language);

Gets overall metric information for a font. Since the metrics may be substantially different for different scripts, a language tag can be provided to indicate that the metrics should be retrieved that correspond to the script(s) used by that language.

If font is NULL, this function gracefully sets some sane values in the output variables and returns.

Parameters

font

a PangoFont.

[nullable]

language

language tag used to determine which script to get the metrics for, or NULL to indicate to get the metrics for the entire font.

[allow-none]

Returns

a PangoFontMetrics object. The caller must call pango_font_metrics_unref() when finished using the object.

pango_font_get_font_map ()

PangoFontMap *
pango_font_get_font_map (PangoFont *font);

Gets the font map for which the font was created.

Note that the font maintains a weak reference to the font map, so if all references to font map are dropped, the font map will be finalized even if there are fonts created with the font map that are still alive. In that case this function will return NULL. It is the responsibility of the user to ensure that the font map is kept alive. In most uses this is not an issue as a PangoContext holds a reference to the font map.

Parameters

font

a PangoFont, or NULL.

[nullable]

Returns

the PangoFontMap for the font, or NULL if font is NULL.

[transfer none][nullable]

Since: 1.10

pango_font_get_features ()

void
pango_font_get_features (PangoFont *font,
                         hb_feature_t *features,
                         guint len,
                         guint *num_features);

Obtain the OpenType features that are provided by the font. These are passed to the rendering system, together with features that have been explicitly set via attributes.

Note that this does not include OpenType features which the rendering system enables by default.

Parameters

font

a PangoFont

  

features

Array to features in.

[out caller-allocates][array length=len]

len

the length of features

 

num_features

the number of used items in features .

[inout]

Since: 1.44

pango_font_get_hb_font ()

hb_font_t *
pango_font_get_hb_font (PangoFont *font);

Get a hb_font_t object backing this font.

Note that the objects returned by this function are cached and immutable. If you need to make changes to the hb_font_t, use hb_font_create_sub_font().

[skip]

Parameters

font

a PangoFont

  

Returns

the hb_font_t object backing the font, or NULL if the font does not have one.

[transfer none][nullable]

Since: 1.44

pango_font_family_get_name ()

const char *
pango_font_family_get_name (PangoFontFamily *family);

Gets the name of the family. The name is unique among all fonts for the font backend and can be used in a PangoFontDescription to specify that a face from this family is desired.

Parameters

family

a PangoFontFamily

  

Returns

the name of the family. This string is owned by the family object and must not be modified or freed.

pango_font_family_is_monospace ()

gboolean
pango_font_family_is_monospace (PangoFontFamily *family);

A monospace font is a font designed for text display where the the characters form a regular grid. For Western languages this would mean that the advance width of all characters are the same, but this categorization also includes Asian fonts which include double-width characters: characters that occupy two grid cells. g_unichar_iswide() returns a result that indicates whether a character is typically double-width in a monospace font.

The best way to find out the grid-cell size is to call pango_font_metrics_get_approximate_digit_width(), since the results of pango_font_metrics_get_approximate_char_width() may be affected by double-width characters.

Parameters

family

a PangoFontFamily

  

Returns

TRUE if the family is monospace.

Since: 1.4

pango_font_family_is_variable ()

gboolean
pango_font_family_is_variable (PangoFontFamily *family);

A variable font is a font which has axes that can be modified to produce different faces.

Parameters

family

a PangoFontFamily

  

Returns

TRUE if the family is variable

Since: 1.44

pango_font_family_list_faces ()

void
pango_font_family_list_faces (PangoFontFamily *family,
                              PangoFontFace ***faces,
                              int *n_faces);

Lists the different font faces that make up family . The faces in a family share a common design, but differ in slant, weight, width and other aspects.

Parameters

family

a PangoFontFamily

  

faces

location to store an array of pointers to PangoFontFace objects, or NULL. This array should be freed with g_free() when it is no longer needed.

[out][allow-none][array length=n_faces][transfer container]

n_faces

location to store number of elements in faces .

[out]

pango_font_family_get_face ()

PangoFontFace *
pango_font_family_get_face (PangoFontFamily *family,
                            const char *name);

Gets the PangoFontFace of family with the given name.

Parameters

family

a PangoFontFamily

  

name

the name of a face. If the name is NULL, the family's default face (fontconfig calls it "Regular") will be returned.

[nullable]

Returns

the PangoFontFace, or NULL if no face with the given name exists.

[transfer none][nullable]

Since: 1.46

pango_font_face_get_face_name ()

const char *
pango_font_face_get_face_name (PangoFontFace *face);

Gets a name representing the style of this face among the different faces in the PangoFontFamily for the face. This name is unique among all faces in the family and is suitable for displaying to users.

Parameters

face

a PangoFontFace.

  

Returns

the face name for the face. This string is owned by the face object and must not be modified or freed.

pango_font_face_list_sizes ()

void
pango_font_face_list_sizes (PangoFontFace *face,
                            int **sizes,
                            int *n_sizes);

List the available sizes for a font. This is only applicable to bitmap fonts. For scalable fonts, stores NULL at the location pointed to by sizes and 0 at the location pointed to by n_sizes . The sizes returned are in Pango units and are sorted in ascending order.

Parameters

face

a PangoFontFace.

  

sizes

location to store a pointer to an array of int. This array should be freed with g_free().

[out][array length=n_sizes][nullable][optional]

n_sizes

location to store the number of elements in sizes

 

Since: 1.4

pango_font_face_describe ()

PangoFontDescription *
pango_font_face_describe (PangoFontFace *face);

Returns the family, style, variant, weight and stretch of a PangoFontFace. The size field of the resulting font description will be unset.

Parameters

face

a PangoFontFace

  

Returns

a newly-created PangoFontDescription structure holding the description of the face. Use pango_font_description_free() to free the result.

pango_font_face_is_synthesized ()

gboolean
pango_font_face_is_synthesized (PangoFontFace *face);

Returns whether a PangoFontFace is synthesized by the underlying font rendering engine from another face, perhaps by shearing, emboldening, or lightening it.

Parameters

face

a PangoFontFace

  

Returns

whether face is synthesized.

Since: 1.18

pango_font_face_get_family ()

PangoFontFamily *
pango_font_face_get_family (PangoFontFace *face);

Gets the PangoFontFamily that face belongs to.

Parameters

face

a PangoFontFace

  

Returns

the PangoFontFamily.

[transfer none]

Since: 1.46

pango_font_map_create_context ()

PangoContext *
pango_font_map_create_context (PangoFontMap *fontmap);

Creates a PangoContext connected to fontmap . This is equivalent to pango_context_new() followed by pango_context_set_font_map().

If you are using Pango as part of a higher-level system, that system may have it's own way of create a PangoContext. For instance, the GTK+ toolkit has, among others, gdk_pango_context_get_for_screen(), and gtk_widget_get_pango_context(). Use those instead.

Parameters

fontmap

a PangoFontMap

  

Returns

the newly allocated PangoContext, which should be freed with g_object_unref().

[transfer full]

Since: 1.22

pango_font_map_load_font ()

PangoFont *
pango_font_map_load_font (PangoFontMap *fontmap,
                          PangoContext *context,
                          const PangoFontDescription *desc);

Load the font in the fontmap that is the closest match for desc .

Parameters

fontmap

a PangoFontMap

  

context

the PangoContext the font will be used with

  

desc

a PangoFontDescription describing the font to load

  

Returns

the newly allocated PangoFont loaded, or NULL if no font matched.

[transfer full][nullable]

pango_font_map_load_fontset ()

PangoFontset *
pango_font_map_load_fontset (PangoFontMap *fontmap,
                             PangoContext *context,
                             const PangoFontDescription *desc,
                             PangoLanguage *language);

Load a set of fonts in the fontmap that can be used to render a font matching desc .

Parameters

fontmap

a PangoFontMap

  

context

the PangoContext the font will be used with

  

desc

a PangoFontDescription describing the font to load

  

language

a PangoLanguage the fonts will be used for

  

Returns

the newly allocated PangoFontset loaded, or NULL if no font matched.

[transfer full][nullable]

pango_font_map_list_families ()

void
pango_font_map_list_families (PangoFontMap *fontmap,
                              PangoFontFamily ***families,
                              int *n_families);

List all families for a fontmap.

Parameters

fontmap

a PangoFontMap

  

families

location to store a pointer to an array of PangoFontFamily *. This array should be freed with g_free().

[out][array length=n_families][transfer container]

n_families

location to store the number of elements in families .

[out]

pango_font_map_get_family ()

PangoFontFamily *
pango_font_map_get_family (PangoFontMap *fontmap,
                           const char *name);

Gets a font family by name.

Parameters

fontmap

a PangoFontMap

  

name

a family name

  

Returns

the PangoFontFamily.

[transfer none]

Since: 1.46

pango_font_map_get_serial ()

guint
pango_font_map_get_serial (PangoFontMap *fontmap);

Returns the current serial number of fontmap . The serial number is initialized to an small number larger than zero when a new fontmap is created and is increased whenever the fontmap is changed. It may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals".

The fontmap can only be changed using backend-specific API, like changing fontmap resolution.

This can be used to automatically detect changes to a PangoFontMap, like in PangoContext.

Parameters

fontmap

a PangoFontMap

  

Returns

The current serial number of fontmap .

Since: 1.32.4

pango_font_map_changed ()

void
pango_font_map_changed (PangoFontMap *fontmap);

Forces a change in the context, which will cause any PangoContext using this fontmap to change.

This function is only useful when implementing a new backend for Pango, something applications won't do. Backends should call this function if they have attached extra data to the context and such data is changed.

Parameters

fontmap

a PangoFontMap

  

Since: 1.34

pango_fontset_get_font ()

PangoFont *
pango_fontset_get_font (PangoFontset *fontset,
                        guint wc);

Returns the font in the fontset that contains the best glyph for the Unicode character wc .

Parameters

fontset

a PangoFontset

  

wc

a Unicode character

  

Returns

a PangoFont. The caller must call g_object_unref when finished with the font.

[transfer full]

pango_fontset_get_metrics ()

PangoFontMetrics *
pango_fontset_get_metrics (PangoFontset *fontset);

Get overall metric information for the fonts in the fontset.

Parameters

fontset

a PangoFontset

  

Returns

a PangoFontMetrics object. The caller must call pango_font_metrics_unref() when finished using the object.

PangoFontsetForeachFunc ()

gboolean
(*PangoFontsetForeachFunc) (PangoFontset *fontset,
                            PangoFont *font,
                            gpointer user_data);

A callback function used by pango_fontset_foreach() when enumerating the fonts in a fontset.

Parameters

fontset

a PangoFontset

  

font

a font from fontset

 

user_data

callback data

  

Returns

if TRUE, stop iteration and return immediately.

Since: 1.4

pango_fontset_foreach ()

void
pango_fontset_foreach (PangoFontset *fontset,
                       PangoFontsetForeachFunc func,
                       gpointer data);

Iterates through all the fonts in a fontset, calling func for each one. If func returns TRUE, that stops the iteration.

Parameters

fontset

a PangoFontset

  

func

Callback function.

[closure data][scope call]

data

data to pass to the callback function.

[closure]

Since: 1.4

Types and Values

PangoFontDescription

typedef struct _PangoFontDescription PangoFontDescription;

The PangoFontDescription structure represents the description of an ideal font. These structures are used both to list what fonts are available on the system and also for specifying the characteristics of a font to load.

enum PangoStyle

An enumeration specifying the various slant styles possible for a font.

Members

PANGO_STYLE_NORMAL

the font is upright.

  

PANGO_STYLE_OBLIQUE

the font is slanted, but in a roman style.

  

PANGO_STYLE_ITALIC

the font is slanted in an italic style.

  

enum PangoWeight

An enumeration specifying the weight (boldness) of a font. This is a numerical value ranging from 100 to 1000, but there are some predefined values:

Members

PANGO_WEIGHT_THIN

the thin weight (= 100; Since: 1.24)

  

PANGO_WEIGHT_ULTRALIGHT

the ultralight weight (= 200)

  

PANGO_WEIGHT_LIGHT

the light weight (= 300)

  

PANGO_WEIGHT_SEMILIGHT

the semilight weight (= 350; Since: 1.36.7)

  

PANGO_WEIGHT_BOOK

the book weight (= 380; Since: 1.24)

  

PANGO_WEIGHT_NORMAL

the default weight (= 400)

  

PANGO_WEIGHT_MEDIUM

the normal weight (= 500; Since: 1.24)

  

PANGO_WEIGHT_SEMIBOLD

the semibold weight (= 600)

  

PANGO_WEIGHT_BOLD

the bold weight (= 700)

  

PANGO_WEIGHT_ULTRABOLD

the ultrabold weight (= 800)

  

PANGO_WEIGHT_HEAVY

the heavy weight (= 900)

  

PANGO_WEIGHT_ULTRAHEAVY

the ultraheavy weight (= 1000; Since: 1.24)

  

enum PangoVariant

An enumeration specifying capitalization variant of the font.

Members

PANGO_VARIANT_NORMAL

A normal font.

  

PANGO_VARIANT_SMALL_CAPS

A font with the lower case characters replaced by smaller variants of the capital characters.

  

enum PangoStretch

An enumeration specifying the width of the font relative to other designs within a family.

Members

PANGO_STRETCH_ULTRA_CONDENSED

ultra condensed width

  

PANGO_STRETCH_EXTRA_CONDENSED

extra condensed width

  

PANGO_STRETCH_CONDENSED

condensed width

  

PANGO_STRETCH_SEMI_CONDENSED

semi condensed width

  

PANGO_STRETCH_NORMAL

the normal width

  

PANGO_STRETCH_SEMI_EXPANDED

semi expanded width

  

PANGO_STRETCH_EXPANDED

expanded width

  

PANGO_STRETCH_EXTRA_EXPANDED

extra expanded width

  

PANGO_STRETCH_ULTRA_EXPANDED

ultra expanded width

  

enum PangoFontMask

The bits in a PangoFontMask correspond to fields in a PangoFontDescription that have been set.

Members

PANGO_FONT_MASK_FAMILY

the font family is specified.

  

PANGO_FONT_MASK_STYLE

the font style is specified.

  

PANGO_FONT_MASK_VARIANT

the font variant is specified.

  

PANGO_FONT_MASK_WEIGHT

the font weight is specified.

  

PANGO_FONT_MASK_STRETCH

the font stretch is specified.

  

PANGO_FONT_MASK_SIZE

the font size is specified.

  

PANGO_FONT_MASK_GRAVITY

the font gravity is specified (Since: 1.16.)

  

PANGO_FONT_MASK_VARIATIONS

OpenType font variations are specified (Since: 1.42)

  

struct PangoFontMetrics

struct PangoFontMetrics {
};

A PangoFontMetrics structure holds the overall metric information for a font (possibly restricted to a script). The fields of this structure are private to implementations of a font backend. See the documentation of the corresponding getters for documentation of their meaning.

PangoFont

typedef struct _PangoFont PangoFont;

PangoFont is deprecated and should not be used in newly-written code.

The PangoFont structure is used to represent a font in a rendering-system-independent matter. To create an implementation of a PangoFont, the rendering-system specific code should allocate a larger structure that contains a nested PangoFont, fill in the klass member of the nested PangoFont with a pointer to a appropriate PangoFontClass, then call pango_font_init() on the structure.

The PangoFont structure contains one member which the implementation fills in.

struct PangoFontFamily

struct PangoFontFamily;

PangoFontFamily is deprecated and should not be used in newly-written code.

The PangoFontFamily structure is used to represent a family of related font faces. The faces in a family share a common design, but differ in slant, weight, width and other aspects.

struct PangoFontFace

struct PangoFontFace;

PangoFontFace is deprecated and should not be used in newly-written code.

The PangoFontFace structure is used to represent a group of fonts with the same family, slant, weight, width, but varying sizes.

PangoFontMap

typedef struct _PangoFontMap PangoFontMap;

The PangoFontMap represents the set of fonts available for a particular rendering system. This is a virtual object with implementations being specific to particular rendering systems. To create an implementation of a PangoFontMap, the rendering-system specific code should allocate a larger structure that contains a nested PangoFontMap, fill in the klass member of the nested PangoFontMap with a pointer to a appropriate PangoFontMapClass, then call pango_font_map_init() on the structure.

The PangoFontMap structure contains one member which the implementation fills in.

struct PangoFontMapClass

struct PangoFontMapClass {
  GObjectClass parent_class;

  PangoFont *   (*load_font)     (PangoFontMap               *fontmap,
                                  PangoContext               *context,
                                  const PangoFontDescription *desc);
  void          (*list_families) (PangoFontMap               *fontmap,
                                  PangoFontFamily          ***families,
                                  int                        *n_families);
  PangoFontset *(*load_fontset)  (PangoFontMap               *fontmap,
                                  PangoContext               *context,
                                  const PangoFontDescription *desc,
                                  PangoLanguage              *language);

  const char     *shape_engine_type;

  guint         (*get_serial)    (PangoFontMap               *fontmap);
  void          (*changed)       (PangoFontMap               *fontmap);

  PangoFontFamily * (*get_family) (PangoFontMap               *fontmap,
                                   const char                 *name);

  PangoFontFace *   (*get_face)   (PangoFontMap               *fontmap,
                                   PangoFont                  *font);
};

The PangoFontMapClass structure holds the virtual functions for a particular PangoFontMap implementation.

Members

load_font ()

a function to load a font with a given description. See pango_font_map_load_font().

  

list_families ()

A function to list available font families. See pango_font_map_list_families().

  

load_fontset ()

a function to load a fontset with a given given description suitable for a particular language. See pango_font_map_load_fontset().

  

const char *shape_engine_type;

the type of rendering-system-dependent engines that can handle fonts of this fonts loaded with this fontmap.

  

get_serial ()

a function to get the serial number of the fontmap. See pango_font_map_get_serial().

  

changed ()

See pango_font_map_changed()

  

get_family ()

    

get_face ()

    

struct PangoFontset

struct PangoFontset;

A PangoFontset represents a set of PangoFont to use when rendering text. It is the result of resolving a PangoFontDescription against a particular PangoContext. It has operations for finding the component font for a particular Unicode character, and for finding a composite set of metrics for the entire fontset.

struct PangoFontsetClass

struct PangoFontsetClass {
  GObjectClass parent_class;

  PangoFont *       (*get_font)     (PangoFontset     *fontset,
                                     guint             wc);

  PangoFontMetrics *(*get_metrics)  (PangoFontset     *fontset);
  PangoLanguage *   (*get_language) (PangoFontset     *fontset);
  void              (*foreach)      (PangoFontset           *fontset,
                                     PangoFontsetForeachFunc func,
                                     gpointer                data);
};

The PangoFontsetClass structure holds the virtual functions for a particular PangoFontset implementation.

Members

get_font ()

a function to get the font in the fontset that contains the best glyph for the given Unicode character; see pango_fontset_get_font().

  

get_metrics ()

a function to get overall metric information for the fonts in the fontset; see pango_fontset_get_metrics().

  

get_language ()

a function to get the language of the fontset.

  

foreach ()

a function to loop over the fonts in the fontset. See pango_fontset_foreach().

  
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-16.html0000664000175000017500000003445614002404370015736 0ustar mclasenmclasen Index of new symbols in 1.16: Pango Reference Manual

Index of new symbols in 1.16

A

PANGO_ANALYSIS_FLAG_CENTERED_BASELINE, macro in Text Processing
pango_attr_gravity_hint_new, function in Text Attributes
pango_attr_gravity_new, function in Text Attributes

C

pango_color_to_string, function in Text Attributes
pango_context_get_base_gravity, function in Contexts
pango_context_get_gravity, function in Contexts
pango_context_get_gravity_hint, function in Contexts
pango_context_set_base_gravity, function in Contexts
pango_context_set_gravity_hint, function in Contexts

E

pango_extents_to_pixels, function in Glyph Storage

F

pango_font_description_get_gravity, function in Fonts
pango_font_description_set_gravity, function in Fonts

G

PangoGravity, enum in Vertical Text
PangoGravityHint, enum in Vertical Text
pango_gravity_get_for_matrix, function in Vertical Text
pango_gravity_get_for_script, function in Vertical Text
PANGO_GRAVITY_IS_VERTICAL, macro in Vertical Text
pango_gravity_to_rotation, function in Vertical Text

L

pango_language_get_default, function in Scripts and Languages
pango_layout_get_lines_readonly, function in Layout Objects
pango_layout_get_line_readonly, function in Layout Objects
pango_layout_get_unknown_glyphs_count, function in Layout Objects
pango_layout_is_ellipsized, function in Layout Objects
pango_layout_is_wrapped, function in Layout Objects
pango_layout_iter_get_line_readonly, function in Layout Objects
pango_layout_iter_get_run_readonly, function in Layout Objects

M

pango_matrix_transform_distance, function in Glyph Storage
pango_matrix_transform_pixel_rectangle, function in Glyph Storage
pango_matrix_transform_point, function in Glyph Storage
pango_matrix_transform_rectangle, function in Glyph Storage

O

PANGO_OT_ALL_GLYPHS, macro in OpenType Font Handling
PANGO_OT_DEFAULT_LANGUAGE, macro in OpenType Font Handling

P

pango_parse_enum, function in Miscellaneous Utilities

U

pango_units_from_double, function in Glyph Storage
pango_units_to_double, function in Glyph Storage

V

pango_version, function in Version Checking
pango_version_check, function in Version Checking
pango_version_string, function in Version Checking

W

pango_win32_font_cache_loadw, function in Win32 Fonts and Rendering
pango_win32_font_description_from_logfontw, function in Win32 Fonts and Rendering
pango_win32_font_logfontw, function in Win32 Fonts and Rendering
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docs/html/pango-Contexts.html0000664000175000017500000016164314002404370016406 0ustar mclasenmclasen Contexts: Pango Reference Manual

Contexts

Contexts — Global context object

Functions

PangoContext * pango_context_new ()
void pango_context_changed ()
guint pango_context_get_serial ()
void pango_context_set_font_map ()
PangoFontMap * pango_context_get_font_map ()
PangoFontDescription * pango_context_get_font_description ()
void pango_context_set_font_description ()
PangoLanguage * pango_context_get_language ()
void pango_context_set_language ()
PangoDirection pango_context_get_base_dir ()
void pango_context_set_base_dir ()
PangoGravity pango_context_get_base_gravity ()
void pango_context_set_base_gravity ()
PangoGravity pango_context_get_gravity ()
PangoGravityHint pango_context_get_gravity_hint ()
void pango_context_set_gravity_hint ()
const PangoMatrix * pango_context_get_matrix ()
void pango_context_set_matrix ()
gboolean pango_context_get_round_glyph_positions ()
void pango_context_set_round_glyph_positions ()
PangoFont * pango_context_load_font ()
PangoFontset * pango_context_load_fontset ()
PangoFontMetrics * pango_context_get_metrics ()
void pango_context_list_families ()

Types and Values

  PangoContext

Object Hierarchy

    GObject
    ╰── PangoContext

Description

The PangoContext structure stores global information influencing Pango's operation, such as the fontmap used to look up fonts, and default values such as the default language, default gravity, or default font.

Functions

pango_context_new ()

PangoContext *
pango_context_new (void);

Creates a new PangoContext initialized to default values.

This function is not particularly useful as it should always be followed by a pango_context_set_font_map() call, and the function pango_font_map_create_context() does these two steps together and hence users are recommended to use that.

If you are using Pango as part of a higher-level system, that system may have it's own way of create a PangoContext. For instance, the GTK+ toolkit has, among others, gdk_pango_context_get_for_screen(), and gtk_widget_get_pango_context(). Use those instead.

Returns

the newly allocated PangoContext, which should be freed with g_object_unref().

pango_context_changed ()

void
pango_context_changed (PangoContext *context);

Forces a change in the context, which will cause any PangoLayout using this context to re-layout.

This function is only useful when implementing a new backend for Pango, something applications won't do. Backends should call this function if they have attached extra data to the context and such data is changed.

Parameters

context

a PangoContext

  

Since: 1.32.4

pango_context_get_serial ()

guint
pango_context_get_serial (PangoContext *context);

Returns the current serial number of context . The serial number is initialized to an small number larger than zero when a new context is created and is increased whenever the context is changed using any of the setter functions, or the PangoFontMap it uses to find fonts has changed. The serial may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals".

This can be used to automatically detect changes to a PangoContext, and is only useful when implementing objects that need update when their PangoContext changes, like PangoLayout.

Parameters

context

a PangoContext

  

Returns

The current serial number of context .

Since: 1.32.4

pango_context_set_font_map ()

void
pango_context_set_font_map (PangoContext *context,
                            PangoFontMap *font_map);

Sets the font map to be searched when fonts are looked-up in this context. This is only for internal use by Pango backends, a PangoContext obtained via one of the recommended methods should already have a suitable font map.

Parameters

context

a PangoContext

  

font_map

the PangoFontMap to set.

  

pango_context_get_font_map ()

PangoFontMap *
pango_context_get_font_map (PangoContext *context);

Gets the PangoFontMap used to look up fonts for this context.

Parameters

context

a PangoContext

  

Returns

the font map for the PangoContext. This value is owned by Pango and should not be unreferenced.

[transfer none]

Since: 1.6

pango_context_get_font_description ()

PangoFontDescription *
pango_context_get_font_description (PangoContext *context);

Retrieve the default font description for the context.

Parameters

context

a PangoContext

  

Returns

a pointer to the context's default font description. This value must not be modified or freed.

[transfer none]

pango_context_set_font_description ()

void
pango_context_set_font_description (PangoContext *context,
                                    const PangoFontDescription *desc);

Set the default font description for the context

Parameters

context

a PangoContext

  

desc

the new pango font description

  

pango_context_get_language ()

PangoLanguage *
pango_context_get_language (PangoContext *context);

Retrieves the global language tag for the context.

Parameters

context

a PangoContext

  

Returns

the global language tag.

pango_context_set_language ()

void
pango_context_set_language (PangoContext *context,
                            PangoLanguage *language);

Sets the global language tag for the context. The default language for the locale of the running process can be found using pango_language_get_default().

Parameters

context

a PangoContext

  

language

the new language tag.

  

pango_context_get_base_dir ()

PangoDirection
pango_context_get_base_dir (PangoContext *context);

Retrieves the base direction for the context. See pango_context_set_base_dir().

Parameters

context

a PangoContext

  

Returns

the base direction for the context.

pango_context_set_base_dir ()

void
pango_context_set_base_dir (PangoContext *context,
                            PangoDirection direction);

Sets the base direction for the context.

The base direction is used in applying the Unicode bidirectional algorithm; if the direction is PANGO_DIRECTION_LTR or PANGO_DIRECTION_RTL, then the value will be used as the paragraph direction in the Unicode bidirectional algorithm. A value of PANGO_DIRECTION_WEAK_LTR or PANGO_DIRECTION_WEAK_RTL is used only for paragraphs that do not contain any strong characters themselves.

Parameters

context

a PangoContext

  

direction

the new base direction

  

pango_context_get_base_gravity ()

PangoGravity
pango_context_get_base_gravity (PangoContext *context);

Retrieves the base gravity for the context. See pango_context_set_base_gravity().

Parameters

context

a PangoContext

  

Returns

the base gravity for the context.

Since: 1.16

pango_context_set_base_gravity ()

void
pango_context_set_base_gravity (PangoContext *context,
                                PangoGravity gravity);

Sets the base gravity for the context.

The base gravity is used in laying vertical text out.

Parameters

context

a PangoContext

  

gravity

the new base gravity

  

Since: 1.16

pango_context_get_gravity ()

PangoGravity
pango_context_get_gravity (PangoContext *context);

Retrieves the gravity for the context. This is similar to pango_context_get_base_gravity(), except for when the base gravity is PANGO_GRAVITY_AUTO for which pango_gravity_get_for_matrix() is used to return the gravity from the current context matrix.

Parameters

context

a PangoContext

  

Returns

the resolved gravity for the context.

Since: 1.16

pango_context_get_gravity_hint ()

PangoGravityHint
pango_context_get_gravity_hint (PangoContext *context);

Retrieves the gravity hint for the context. See pango_context_set_gravity_hint() for details.

Parameters

context

a PangoContext

  

Returns

the gravity hint for the context.

Since: 1.16

pango_context_set_gravity_hint ()

void
pango_context_set_gravity_hint (PangoContext *context,
                                PangoGravityHint hint);

Sets the gravity hint for the context.

The gravity hint is used in laying vertical text out, and is only relevant if gravity of the context as returned by pango_context_get_gravity() is set PANGO_GRAVITY_EAST or PANGO_GRAVITY_WEST.

Parameters

context

a PangoContext

  

hint

the new gravity hint

  

Since: 1.16

pango_context_get_matrix ()

const PangoMatrix *
pango_context_get_matrix (PangoContext *context);

Gets the transformation matrix that will be applied when rendering with this context. See pango_context_set_matrix().

Parameters

context

a PangoContext

  

Returns

the matrix, or NULL if no matrix has been set (which is the same as the identity matrix). The returned matrix is owned by Pango and must not be modified or freed.

[nullable]

Since: 1.6

pango_context_set_matrix ()

void
pango_context_set_matrix (PangoContext *context,
                          const PangoMatrix *matrix);

Sets the transformation matrix that will be applied when rendering with this context. Note that reported metrics are in the user space coordinates before the application of the matrix, not device-space coordinates after the application of the matrix. So, they don't scale with the matrix, though they may change slightly for different matrices, depending on how the text is fit to the pixel grid.

Parameters

context

a PangoContext

  

matrix

a PangoMatrix, or NULL to unset any existing matrix. (No matrix set is the same as setting the identity matrix.).

[allow-none]

Since: 1.6

pango_context_get_round_glyph_positions ()

gboolean
pango_context_get_round_glyph_positions
                               (PangoContext *context);

Returns whether font rendering with this context should round glyph positions and widths.

Parameters

context

a PangoContext

  

Since: 1.44

pango_context_set_round_glyph_positions ()

void
pango_context_set_round_glyph_positions
                               (PangoContext *context,
                                gboolean round_positions);

Sets whether font rendering with this context should round glyph positions and widths to integral positions, in device units.

This is useful when the renderer can't handle subpixel positioning of glyphs.

The default value is to round glyph positions, to remain compatible with previous Pango behavior.

Parameters

context

a PangoContext

  

round_positions

whether to round glyph positions

  

Since: 1.44

pango_context_load_font ()

PangoFont *
pango_context_load_font (PangoContext *context,
                         const PangoFontDescription *desc);

Loads the font in one of the fontmaps in the context that is the closest match for desc .

Parameters

context

a PangoContext

  

desc

a PangoFontDescription describing the font to load

  

Returns

the newly allocated PangoFont that was loaded, or NULL if no font matched.

[transfer full][nullable]

pango_context_load_fontset ()

PangoFontset *
pango_context_load_fontset (PangoContext *context,
                            const PangoFontDescription *desc,
                            PangoLanguage *language);

Load a set of fonts in the context that can be used to render a font matching desc .

Parameters

context

a PangoContext

  

desc

a PangoFontDescription describing the fonts to load

  

language

a PangoLanguage the fonts will be used for

  

Returns

the newly allocated PangoFontset loaded, or NULL if no font matched.

[transfer full][nullable]

pango_context_get_metrics ()

PangoFontMetrics *
pango_context_get_metrics (PangoContext *context,
                           const PangoFontDescription *desc,
                           PangoLanguage *language);

Get overall metric information for a particular font description. Since the metrics may be substantially different for different scripts, a language tag can be provided to indicate that the metrics should be retrieved that correspond to the script(s) used by that language.

The PangoFontDescription is interpreted in the same way as by pango_itemize(), and the family name may be a comma separated list of figures. If characters from multiple of these families would be used to render the string, then the returned fonts would be a composite of the metrics for the fonts loaded for the individual families.

Parameters

context

a PangoContext

  

desc

a PangoFontDescription structure. NULL means that the font description from the context will be used.

[allow-none]

language

language tag used to determine which script to get the metrics for. NULL means that the language tag from the context will be used. If no language tag is set on the context, metrics for the default language (as determined by pango_language_get_default()) will be returned.

[allow-none]

Returns

a PangoFontMetrics object. The caller must call pango_font_metrics_unref() when finished using the object.

pango_context_list_families ()

void
pango_context_list_families (PangoContext *context,
                             PangoFontFamily ***families,
                             int *n_families);

List all families for a context.

Parameters

context

a PangoContext

  

families

location to store a pointer to an array of PangoFontFamily *. This array should be freed with g_free().

[out][array length=n_families][transfer container]

n_families

location to store the number of elements in descs .

[out]

Types and Values

PangoContext

typedef struct _PangoContext PangoContext;

The PangoContext structure stores global information used to control the itemization process.

Generated by GTK-Doc V1.33.0
docs/html/pango-Version-Checking.html0000664000175000017500000007660514002404370017740 0ustar mclasenmclasen Version Checking: Pango Reference Manual

Version Checking

Version Checking — Tools for checking Pango version at compile- and run-time.

Functions

#define PANGO_VERSION_ENCODE()
#define PANGO_VERSION_CHECK()
int pango_version ()
const char * pango_version_string ()
const char * pango_version_check ()

Types and Values

#define PANGO_VERSION
#define PANGO_VERSION_MAJOR
#define PANGO_VERSION_MINOR
#define PANGO_VERSION_MICRO
#define PANGO_VERSION_STRING
#define PANGO_VERSION_1_2
#define PANGO_VERSION_1_4
#define PANGO_VERSION_1_6
#define PANGO_VERSION_1_8
#define PANGO_VERSION_1_10
#define PANGO_VERSION_1_12
#define PANGO_VERSION_1_14
#define PANGO_VERSION_1_16
#define PANGO_VERSION_1_18
#define PANGO_VERSION_1_20
#define PANGO_VERSION_1_22
#define PANGO_VERSION_1_24
#define PANGO_VERSION_1_26
#define PANGO_VERSION_1_28
#define PANGO_VERSION_1_30
#define PANGO_VERSION_1_32
#define PANGO_VERSION_1_34
#define PANGO_VERSION_1_36
#define PANGO_VERSION_1_38
#define PANGO_VERSION_1_40
#define PANGO_VERSION_1_42
#define PANGO_VERSION_1_44
#define PANGO_VERSION_MIN_REQUIRED
#define PANGO_VERSION_MAX_ALLOWED

Description

The capital-letter macros defined here can be used to check the version of Pango at compile-time, and to encode Pango versions into integers.

The functions can be used to check the version of the linked Pango library at run-time.

Functions

PANGO_VERSION_ENCODE()

#define             PANGO_VERSION_ENCODE(major, minor, micro)

This macro encodes the given Pango version into an integer. The numbers returned by PANGO_VERSION and pango_version() are encoded using this macro. Two encoded version numbers can be compared as integers.

Parameters

major

the major component of the version number

  

minor

the minor component of the version number

  

micro

the micro component of the version number

  

PANGO_VERSION_CHECK()

#define             PANGO_VERSION_CHECK(major,minor,micro)

Checks that the version of Pango available at compile-time is not older than the provided version number.

Parameters

major

the major component of the version number

  

minor

the minor component of the version number

  

micro

the micro component of the version number

  

pango_version ()

int
pango_version (void);

This is similar to the macro PANGO_VERSION except that it returns the encoded version of Pango available at run-time, as opposed to the version available at compile-time.

A version number can be encoded into an integer using PANGO_VERSION_ENCODE().

Returns

The encoded version of Pango library available at run time.

Since: 1.16

pango_version_string ()

const char *
pango_version_string (void);

This is similar to the macro PANGO_VERSION_STRING except that it returns the version of Pango available at run-time, as opposed to the version available at compile-time.

Returns

A string containing the version of Pango library available at run time. The returned string is owned by Pango and should not be modified or freed.

Since: 1.16

pango_version_check ()

const char *
pango_version_check (int required_major,
                     int required_minor,
                     int required_micro);

Checks that the Pango library in use is compatible with the given version. Generally you would pass in the constants PANGO_VERSION_MAJOR, PANGO_VERSION_MINOR, PANGO_VERSION_MICRO as the three arguments to this function; that produces a check that the library in use at run-time is compatible with the version of Pango the application or module was compiled against.

Compatibility is defined by two things: first the version of the running library is newer than the version required_major.required_minor .required_micro . Second the running library must be binary compatible with the version required_major.required_minor .required_micro (same major version.)

For compile-time version checking use PANGO_VERSION_CHECK().

Parameters

required_major

the required major version.

  

required_minor

the required minor version.

  

required_micro

the required major version.

  

Returns

NULL if the Pango library is compatible with the given version, or a string describing the version mismatch. The returned string is owned by Pango and should not be modified or freed.

[nullable]

Since: 1.16

Types and Values

PANGO_VERSION

#define             PANGO_VERSION

The version of Pango available at compile-time, encoded using PANGO_VERSION_ENCODE().

PANGO_VERSION_MAJOR

#define PANGO_VERSION_MAJOR 1

The major component of the version of Pango available at compile-time.

PANGO_VERSION_MINOR

#define PANGO_VERSION_MINOR 48

The minor component of the version of Pango available at compile-time.

PANGO_VERSION_MICRO

#define PANGO_VERSION_MICRO 1

The micro component of the version of Pango available at compile-time.

PANGO_VERSION_STRING

#define PANGO_VERSION_STRING "1.48.1"

A string literal containing the version of Pango available at compile-time.

PANGO_VERSION_1_2

#define PANGO_VERSION_1_2        (G_ENCODE_VERSION (1, 2))

A macro that evaluates to the 1.2 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_4

#define PANGO_VERSION_1_4        (G_ENCODE_VERSION (1, 4))

A macro that evaluates to the 1.4 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_6

#define PANGO_VERSION_1_6        (G_ENCODE_VERSION (1, 6))

A macro that evaluates to the 1.6 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_8

#define PANGO_VERSION_1_8        (G_ENCODE_VERSION (1, 8))

A macro that evaluates to the 1.8 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_10

#define PANGO_VERSION_1_10       (G_ENCODE_VERSION (1, 10))

A macro that evaluates to the 1.10 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_12

#define PANGO_VERSION_1_12       (G_ENCODE_VERSION (1, 12))

A macro that evaluates to the 1.12 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_14

#define PANGO_VERSION_1_14       (G_ENCODE_VERSION (1, 14))

A macro that evaluates to the 1.14 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_16

#define PANGO_VERSION_1_16       (G_ENCODE_VERSION (1, 16))

A macro that evaluates to the 1.16 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_18

#define PANGO_VERSION_1_18       (G_ENCODE_VERSION (1, 18))

A macro that evaluates to the 1.18 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_20

#define PANGO_VERSION_1_20       (G_ENCODE_VERSION (1, 20))

A macro that evaluates to the 1.20 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_22

#define PANGO_VERSION_1_22       (G_ENCODE_VERSION (1, 22))

A macro that evaluates to the 1.22 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_24

#define PANGO_VERSION_1_24       (G_ENCODE_VERSION (1, 24))

A macro that evaluates to the 1.24 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_26

#define PANGO_VERSION_1_26       (G_ENCODE_VERSION (1, 26))

A macro that evaluates to the 1.26 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_28

#define PANGO_VERSION_1_28       (G_ENCODE_VERSION (1, 28))

A macro that evaluates to the 1.28 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_30

#define PANGO_VERSION_1_30       (G_ENCODE_VERSION (1, 30))

A macro that evaluates to the 1.30 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_32

#define PANGO_VERSION_1_32       (G_ENCODE_VERSION (1, 32))

A macro that evaluates to the 1.32 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_34

#define PANGO_VERSION_1_34       (G_ENCODE_VERSION (1, 34))

A macro that evaluates to the 1.34 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_36

#define PANGO_VERSION_1_36       (G_ENCODE_VERSION (1, 36))

A macro that evaluates to the 1.36 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_38

#define PANGO_VERSION_1_38       (G_ENCODE_VERSION (1, 38))

A macro that evaluates to the 1.38 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_40

#define PANGO_VERSION_1_40       (G_ENCODE_VERSION (1, 40))

A macro that evaluates to the 1.40 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_42

#define PANGO_VERSION_1_42       (G_ENCODE_VERSION (1, 42))

A macro that evaluates to the 1.42 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.42

PANGO_VERSION_1_44

#define PANGO_VERSION_1_44       (G_ENCODE_VERSION (1, 44))

A macro that evaluates to the 1.44 version of Pango, in a format that can be used by the C pre-processor.

Since: 1.44

PANGO_VERSION_MIN_REQUIRED

# define PANGO_VERSION_MIN_REQUIRED      (PANGO_VERSION_CUR_STABLE)

A macro that should be defined by the user prior to including the pango.h header. The definition should be one of the predefined Pango version macros: PANGO_VERSION_1_2, PANGO_VERSION_1_4,...

This macro defines the earliest version of Pango that the package is required to be able to compile against.

If the compiler is configured to warn about the use of deprecated functions, then using functions that were deprecated in version PANGO_VERSION_MIN_REQUIRED or earlier will cause warnings (but using functions deprecated in later releases will not).

Since: 1.42

PANGO_VERSION_MAX_ALLOWED

# define PANGO_VERSION_MAX_ALLOWED      (PANGO_VERSION_CUR_STABLE)

A macro that should be defined by the user prior to including the glib.h header. The definition should be one of the predefined Pango version macros: PANGO_VERSION_1_2, PANGO_VERSION_1_4,...

This macro defines the latest version of the Pango API that the package is allowed to make use of.

If the compiler is configured to warn about the use of deprecated functions, then using functions added after version PANGO_VERSION_MAX_ALLOWED will cause warnings.

Unless you are using PANGO_CHECK_VERSION() or the like to compile different code depending on the Pango version, then this should be set to the same value as PANGO_VERSION_MIN_REQUIRED.

Since: 1.42

Generated by GTK-Doc V1.33.0
docs/html/pango-OpenType-Font-Handling.html0000664000175000017500000041120514002404370020760 0ustar mclasenmclasen OpenType Font Handling: Pango Reference Manual

OpenType Font Handling

OpenType Font Handling — Obtaining information from OpenType tables

Stability Level

Unstable, unless otherwise indicated

Functions

#define PANGO_OT_TAG_MAKE()
#define PANGO_OT_TAG_MAKE_FROM_STRING()
PangoOTInfo * pango_ot_info_get ()
gboolean pango_ot_info_find_script ()
gboolean pango_ot_info_find_language ()
gboolean pango_ot_info_find_feature ()
PangoOTTag * pango_ot_info_list_scripts ()
PangoOTTag * pango_ot_info_list_languages ()
PangoOTTag * pango_ot_info_list_features ()
PangoOTBuffer * pango_ot_buffer_new ()
void pango_ot_buffer_destroy ()
void pango_ot_buffer_clear ()
void pango_ot_buffer_add_glyph ()
void pango_ot_buffer_set_rtl ()
void pango_ot_buffer_set_zero_width_marks ()
void pango_ot_buffer_get_glyphs ()
void pango_ot_buffer_output ()
const PangoOTRuleset * pango_ot_ruleset_get_for_description ()
PangoOTRuleset * pango_ot_ruleset_new ()
PangoOTRuleset * pango_ot_ruleset_new_for ()
PangoOTRuleset * pango_ot_ruleset_new_from_description ()
void pango_ot_ruleset_add_feature ()
gboolean pango_ot_ruleset_maybe_add_feature ()
guint pango_ot_ruleset_maybe_add_features ()
guint pango_ot_ruleset_get_feature_count ()
void pango_ot_ruleset_substitute ()
void pango_ot_ruleset_position ()
PangoOTRulesetDescription * pango_ot_ruleset_description_copy ()
gboolean pango_ot_ruleset_description_equal ()
void pango_ot_ruleset_description_free ()
guint pango_ot_ruleset_description_hash ()
PangoOTTag pango_ot_tag_from_language ()
PangoOTTag pango_ot_tag_from_script ()
PangoLanguage * pango_ot_tag_to_language ()
PangoScript pango_ot_tag_to_script ()

Types and Values

typedef PangoOTTag
  PangoOTInfo
  PangoOTBuffer
struct PangoOTGlyph
  PangoOTRuleset
struct PangoOTRulesetDescription
enum PangoOTTableType
struct PangoOTFeatureMap
#define PANGO_OT_ALL_GLYPHS
#define PANGO_OT_NO_FEATURE
#define PANGO_OT_NO_SCRIPT
#define PANGO_OT_DEFAULT_LANGUAGE
#define PANGO_OT_TAG_DEFAULT_LANGUAGE
#define PANGO_OT_TAG_DEFAULT_SCRIPT

Object Hierarchy

    GObject
    ├── PangoOTInfo
    ╰── PangoOTRuleset

Description

Functions and macros in this section are used to implement the OpenType Layout features and algorithms.

They have been superseded by the harfbuzz library, and should not be used anymore.

Functions

PANGO_OT_TAG_MAKE()

#define PANGO_OT_TAG_MAKE(c1,c2,c3,c4)		((PangoOTTag) FT_MAKE_TAG (c1, c2, c3, c4))

PANGO_OT_TAG_MAKE is deprecated and should not be used in newly-written code.

Creates a PangoOTTag from four characters. This is similar and compatible with the FT_MAKE_TAG() macro from FreeType.

Parameters

c1

First character.

  

c2

Second character.

  

c3

Third character.

  

c4

Fourth character.

  

PANGO_OT_TAG_MAKE_FROM_STRING()

#define             PANGO_OT_TAG_MAKE_FROM_STRING(s)

PANGO_OT_TAG_MAKE_FROM_STRING is deprecated and should not be used in newly-written code.

Creates a PangoOTTag from a string. The string should be at least four characters long (pad with space characters if needed), and need not be nul-terminated. This is a convenience wrapper around PANGO_OT_TAG_MAKE(), but cannot be used in certain situations, for example, as a switch expression, as it dereferences pointers.

Parameters

s

The string representation of the tag.

  

pango_ot_info_get ()

PangoOTInfo *
pango_ot_info_get (FT_Face face);

pango_ot_info_get is deprecated and should not be used in newly-written code.

Returns the PangoOTInfo structure for the given FreeType font face.

Parameters

face

a FT_Face.

  

Returns

the PangoOTInfo for face . This object will have the same lifetime as face .

[transfer none]

Since: 1.2

pango_ot_info_find_script ()

gboolean
pango_ot_info_find_script (PangoOTInfo *info,
                           PangoOTTableType table_type,
                           PangoOTTag script_tag,
                           guint *script_index);

pango_ot_info_find_script is deprecated and should not be used in newly-written code.

Finds the index of a script. If not found, tries to find the 'DFLT' and then 'dflt' scripts and return the index of that in script_index . If none of those is found either, PANGO_OT_NO_SCRIPT is placed in script_index .

All other functions taking an input script_index parameter know how to handle PANGO_OT_NO_SCRIPT, so one can ignore the return value of this function completely and proceed, to enjoy the automatic fallback to the 'DFLT'/'dflt' script.

Parameters

info

a PangoOTInfo.

  

table_type

the table type to obtain information about.

  

script_tag

the tag of the script to find.

  

script_index

location to store the index of the script, or NULL.

[out][optional]

Returns

TRUE if the script was found.

pango_ot_info_find_language ()

gboolean
pango_ot_info_find_language (PangoOTInfo *info,
                             PangoOTTableType table_type,
                             guint script_index,
                             PangoOTTag language_tag,
                             guint *language_index,
                             guint *required_feature_index);

pango_ot_info_find_language is deprecated and should not be used in newly-written code.

Finds the index of a language and its required feature index. If the language is not found, sets language_index to PANGO_OT_DEFAULT_LANGUAGE and the required feature of the default language system is returned in required_feature_index. For best compatibility with some fonts, also searches the language system tag 'dflt' before falling back to the default language system, but that is transparent to the user. The user can simply ignore the return value of this function to automatically fall back to the default language system.

Parameters

info

a PangoOTInfo.

  

table_type

the table type to obtain information about.

  

script_index

the index of the script whose languages are searched.

  

language_tag

the tag of the language to find.

  

language_index

location to store the index of the language, or NULL.

[out][optional]

required_feature_index

location to store the required feature index of the language, or NULL.

[out][optional]

Returns

TRUE if the language was found.

pango_ot_info_find_feature ()

gboolean
pango_ot_info_find_feature (PangoOTInfo *info,
                            PangoOTTableType table_type,
                            PangoOTTag feature_tag,
                            guint script_index,
                            guint language_index,
                            guint *feature_index);

pango_ot_info_find_feature is deprecated and should not be used in newly-written code.

Finds the index of a feature. If the feature is not found, sets feature_index to PANGO_OT_NO_FEATURE, which is safe to pass to pango_ot_ruleset_add_feature() and similar functions.

In the future, this may set feature_index to an special value that if used in pango_ot_ruleset_add_feature() will ask Pango to synthesize the requested feature based on Unicode properties and data. However, this function will still return FALSE in those cases. So, users may want to ignore the return value of this function in certain cases.

Parameters

info

a PangoOTInfo.

  

table_type

the table type to obtain information about.

  

feature_tag

the tag of the feature to find.

  

script_index

the index of the script.

  

language_index

the index of the language whose features are searched, or PANGO_OT_DEFAULT_LANGUAGE to use the default language of the script.

  

feature_index

location to store the index of the feature, or NULL.

[out][optional]

Returns

TRUE if the feature was found.

pango_ot_info_list_scripts ()

PangoOTTag *
pango_ot_info_list_scripts (PangoOTInfo *info,
                            PangoOTTableType table_type);

pango_ot_info_list_scripts is deprecated and should not be used in newly-written code.

Obtains the list of available scripts.

Parameters

info

a PangoOTInfo.

  

table_type

the table type to obtain information about.

  

Returns

a newly-allocated zero-terminated array containing the tags of the available scripts. Should be freed using g_free().

pango_ot_info_list_languages ()

PangoOTTag *
pango_ot_info_list_languages (PangoOTInfo *info,
                              PangoOTTableType table_type,
                              guint script_index,
                              PangoOTTag language_tag);

pango_ot_info_list_languages is deprecated and should not be used in newly-written code.

Obtains the list of available languages for a given script.

Parameters

info

a PangoOTInfo.

  

table_type

the table type to obtain information about.

  

script_index

the index of the script to list languages for.

  

language_tag

unused parameter.

  

Returns

a newly-allocated zero-terminated array containing the tags of the available languages. Should be freed using g_free().

pango_ot_info_list_features ()

PangoOTTag *
pango_ot_info_list_features (PangoOTInfo *info,
                             PangoOTTableType table_type,
                             PangoOTTag tag,
                             guint script_index,
                             guint language_index);

pango_ot_info_list_features is deprecated and should not be used in newly-written code.

Obtains the list of features for the given language of the given script.

Parameters

info

a PangoOTInfo.

  

table_type

the table type to obtain information about.

  

tag

unused parameter.

  

script_index

the index of the script to obtain information about.

  

language_index

the index of the language to list features for, or PANGO_OT_DEFAULT_LANGUAGE, to list features for the default language of the script.

  

Returns

a newly-allocated zero-terminated array containing the tags of the available features. Should be freed using g_free().

pango_ot_buffer_new ()

PangoOTBuffer *
pango_ot_buffer_new (PangoFcFont *font);

pango_ot_buffer_new is deprecated and should not be used in newly-written code.

Creates a new PangoOTBuffer for the given OpenType font.

Parameters

font

a PangoFcFont

  

Returns

the newly allocated PangoOTBuffer, which should be freed with pango_ot_buffer_destroy().

Since: 1.4

pango_ot_buffer_destroy ()

void
pango_ot_buffer_destroy (PangoOTBuffer *buffer);

pango_ot_buffer_destroy is deprecated and should not be used in newly-written code.

Destroys a PangoOTBuffer and free all associated memory.

Parameters

buffer

a PangoOTBuffer

  

Since: 1.4

pango_ot_buffer_clear ()

void
pango_ot_buffer_clear (PangoOTBuffer *buffer);

pango_ot_buffer_clear is deprecated and should not be used in newly-written code.

Empties a PangoOTBuffer, make it ready to add glyphs to.

Parameters

buffer

a PangoOTBuffer

  

Since: 1.4

pango_ot_buffer_add_glyph ()

void
pango_ot_buffer_add_glyph (PangoOTBuffer *buffer,
                           guint glyph,
                           guint properties,
                           guint cluster);

pango_ot_buffer_add_glyph is deprecated and should not be used in newly-written code.

Appends a glyph to a PangoOTBuffer, with properties identifying which features should be applied on this glyph. See pango_ot_ruleset_add_feature().

Parameters

buffer

a PangoOTBuffer

  

glyph

the glyph index to add, like a PangoGlyph

  

properties

the glyph properties

  

cluster

the cluster that this glyph belongs to

  

Since: 1.4

pango_ot_buffer_set_rtl ()

void
pango_ot_buffer_set_rtl (PangoOTBuffer *buffer,
                         gboolean rtl);

pango_ot_buffer_set_rtl is deprecated and should not be used in newly-written code.

Sets whether glyphs will be rendered right-to-left. This setting is needed for proper horizontal positioning of right-to-left scripts.

Parameters

buffer

a PangoOTBuffer

  

rtl

TRUE for right-to-left text

  

Since: 1.4

pango_ot_buffer_set_zero_width_marks ()

void
pango_ot_buffer_set_zero_width_marks (PangoOTBuffer *buffer,
                                      gboolean zero_width_marks);

pango_ot_buffer_set_zero_width_marks is deprecated and should not be used in newly-written code.

Sets whether characters with a mark class should be forced to zero width. This setting is needed for proper positioning of Arabic accents, but will produce incorrect results with standard OpenType Indic fonts.

Parameters

buffer

a PangoOTBuffer

  

zero_width_marks

TRUE if characters with a mark class should be forced to zero width.

  

Since: 1.6

pango_ot_buffer_get_glyphs ()

void
pango_ot_buffer_get_glyphs (const PangoOTBuffer *buffer,
                            PangoOTGlyph **glyphs,
                            int *n_glyphs);

pango_ot_buffer_get_glyphs is deprecated and should not be used in newly-written code.

Gets the glyph array contained in a PangoOTBuffer. The glyphs are owned by the buffer and should not be freed, and are only valid as long as buffer is not modified.

Parameters

buffer

a PangoOTBuffer

  

glyphs

location to store the array of glyphs, or NULL.

[array length=n_glyphs][out][optional]

n_glyphs

location to store the number of glyphs, or NULL.

[out][optional]

Since: 1.4

pango_ot_buffer_output ()

void
pango_ot_buffer_output (const PangoOTBuffer *buffer,
                        PangoGlyphString *glyphs);

pango_ot_buffer_output is deprecated and should not be used in newly-written code.

Exports the glyphs in a PangoOTBuffer into a PangoGlyphString. This is typically used after the OpenType layout processing is over, to convert the resulting glyphs into a generic Pango glyph string.

Parameters

buffer

a PangoOTBuffer

  

glyphs

a PangoGlyphString

  

Since: 1.4

pango_ot_ruleset_get_for_description ()

const PangoOTRuleset *
pango_ot_ruleset_get_for_description (PangoOTInfo *info,
                                      const PangoOTRulesetDescription *desc);

pango_ot_ruleset_get_for_description is deprecated and should not be used in newly-written code.

Returns a ruleset for the given OpenType info and ruleset description. Rulesets are created on demand using pango_ot_ruleset_new_from_description(). The returned ruleset should not be modified or destroyed.

The static feature map members of desc should be alive as long as info is.

Parameters

info

a PangoOTInfo.

  

desc

a PangoOTRulesetDescription.

  

Returns

the PangoOTRuleset for desc . This object will have the same lifetime as info .

Since: 1.18

pango_ot_ruleset_new ()

PangoOTRuleset *
pango_ot_ruleset_new (PangoOTInfo *info);

pango_ot_ruleset_new is deprecated and should not be used in newly-written code.

Creates a new PangoOTRuleset for the given OpenType info.

Parameters

info

a PangoOTInfo.

  

Returns

the newly allocated PangoOTRuleset, which should be freed with g_object_unref().

pango_ot_ruleset_new_for ()

PangoOTRuleset *
pango_ot_ruleset_new_for (PangoOTInfo *info,
                          PangoScript script,
                          PangoLanguage *language);

pango_ot_ruleset_new_for is deprecated and should not be used in newly-written code.

Creates a new PangoOTRuleset for the given OpenType info, script, and language.

This function is part of a convenience scheme that highly simplifies using a PangoOTRuleset to represent features for a specific pair of script and language. So one can use this function passing in the script and language of interest, and later try to add features to the ruleset by just specifying the feature name or tag, without having to deal with finding script, language, or feature indices manually.

In excess to what pango_ot_ruleset_new() does, this function will:

Because of the way return values of pango_ot_info_find_script() and pango_ot_info_find_language() are ignored, this function automatically finds and uses the 'DFLT' script and the default language-system.

Parameters

info

a PangoOTInfo.

  

script

a PangoScript.

  

language

a PangoLanguage.

  

Returns

the newly allocated PangoOTRuleset, which should be freed with g_object_unref().

Since: 1.18

pango_ot_ruleset_new_from_description ()

PangoOTRuleset *
pango_ot_ruleset_new_from_description (PangoOTInfo *info,
                                       const PangoOTRulesetDescription *desc);

pango_ot_ruleset_new_from_description is deprecated and should not be used in newly-written code.

Creates a new PangoOTRuleset for the given OpenType infor and matching the given ruleset description.

This is a convenience function that calls pango_ot_ruleset_new_for() and adds the static GSUB/GPOS features to the resulting ruleset, followed by adding other features to both GSUB and GPOS.

The static feature map members of desc should be alive as long as info is.

Parameters

info

a PangoOTInfo.

  

desc

a PangoOTRulesetDescription.

  

Returns

the newly allocated PangoOTRuleset, which should be freed with g_object_unref().

Since: 1.18

pango_ot_ruleset_add_feature ()

void
pango_ot_ruleset_add_feature (PangoOTRuleset *ruleset,
                              PangoOTTableType table_type,
                              guint feature_index,
                              gulong property_bit);

pango_ot_ruleset_add_feature is deprecated and should not be used in newly-written code.

Adds a feature to the ruleset.

Parameters

ruleset

a PangoOTRuleset.

  

table_type

the table type to add a feature to.

  

feature_index

the index of the feature to add.

  

property_bit

the property bit to use for this feature. Used to identify the glyphs that this feature should be applied to, or PANGO_OT_ALL_GLYPHS if it should be applied to all glyphs.

  

pango_ot_ruleset_maybe_add_feature ()

gboolean
pango_ot_ruleset_maybe_add_feature (PangoOTRuleset *ruleset,
                                    PangoOTTableType table_type,
                                    PangoOTTag feature_tag,
                                    gulong property_bit);

pango_ot_ruleset_maybe_add_feature is deprecated and should not be used in newly-written code.

This is a convenience function that first tries to find the feature using pango_ot_info_find_feature() and the ruleset script and language passed to pango_ot_ruleset_new_for(), and if the feature is found, adds it to the ruleset.

If ruleset was not created using pango_ot_ruleset_new_for(), this function does nothing.

Parameters

ruleset

a PangoOTRuleset.

  

table_type

the table type to add a feature to.

  

feature_tag

the tag of the feature to add.

  

property_bit

the property bit to use for this feature. Used to identify the glyphs that this feature should be applied to, or PANGO_OT_ALL_GLYPHS if it should be applied to all glyphs.

  

Returns

TRUE if the feature was found and added to ruleset, FALSE otherwise.

Since: 1.18

pango_ot_ruleset_maybe_add_features ()

guint
pango_ot_ruleset_maybe_add_features (PangoOTRuleset *ruleset,
                                     PangoOTTableType table_type,
                                     const PangoOTFeatureMap *features,
                                     guint n_features);

pango_ot_ruleset_maybe_add_features is deprecated and should not be used in newly-written code.

This is a convenience function that for each feature in the feature map array features converts the feature name to a PangoOTTag feature tag using PANGO_OT_TAG_MAKE() and calls pango_ot_ruleset_maybe_add_feature() on it.

Parameters

ruleset

a PangoOTRuleset.

  

table_type

the table type to add features to.

  

features

array of feature name and property bits to add.

  

n_features

number of feature records in features array.

  

Returns

The number of features in features that were found and added to ruleset .

Since: 1.18

pango_ot_ruleset_get_feature_count ()

guint
pango_ot_ruleset_get_feature_count (const PangoOTRuleset *ruleset,
                                    guint *n_gsub_features,
                                    guint *n_gpos_features);

pango_ot_ruleset_get_feature_count is deprecated and should not be used in newly-written code.

Gets the number of GSUB and GPOS features in the ruleset.

Parameters

ruleset

a PangoOTRuleset.

  

n_gsub_features

location to store number of GSUB features, or NULL.

[out][optional]

n_gpos_features

location to store number of GPOS features, or NULL.

[out][optional]

Returns

Total number of features in the ruleset .

Since: 1.18

pango_ot_ruleset_substitute ()

void
pango_ot_ruleset_substitute (const PangoOTRuleset *ruleset,
                             PangoOTBuffer *buffer);

pango_ot_ruleset_substitute is deprecated and should not be used in newly-written code.

Performs the OpenType GSUB substitution on buffer using the features in ruleset

Parameters

ruleset

a PangoOTRuleset.

  

buffer

a PangoOTBuffer.

  

Since: 1.4

pango_ot_ruleset_position ()

void
pango_ot_ruleset_position (const PangoOTRuleset *ruleset,
                           PangoOTBuffer *buffer);

pango_ot_ruleset_position is deprecated and should not be used in newly-written code.

Performs the OpenType GPOS positioning on buffer using the features in ruleset

Parameters

ruleset

a PangoOTRuleset.

  

buffer

a PangoOTBuffer.

  

Since: 1.4

pango_ot_ruleset_description_copy ()

PangoOTRulesetDescription *
pango_ot_ruleset_description_copy (const PangoOTRulesetDescription *desc);

pango_ot_ruleset_description_copy is deprecated and should not be used in newly-written code.

Creates a copy of desc , which should be freed with pango_ot_ruleset_description_free(). Primarily used internally by pango_ot_ruleset_get_for_description() to cache rulesets for ruleset descriptions.

Parameters

desc

ruleset description to copy

  

Returns

the newly allocated PangoOTRulesetDescription, which should be freed with pango_ot_ruleset_description_free().

Since: 1.18

pango_ot_ruleset_description_equal ()

gboolean
pango_ot_ruleset_description_equal (const PangoOTRulesetDescription *desc1,
                                    const PangoOTRulesetDescription *desc2);

pango_ot_ruleset_description_equal is deprecated and should not be used in newly-written code.

Compares two ruleset descriptions for equality. Two ruleset descriptions are considered equal if the rulesets they describe are provably identical. This means that their script, language, and all feature sets should be equal. For static feature sets, the array addresses are compared directly, while for other features, the list of features is compared one by one. (Two ruleset descriptions may result in identical rulesets being created, but still compare FALSE.)

Parameters

desc1

a ruleset description

  

desc2

a ruleset description

  

Returns

TRUE if two ruleset descriptions are identical, FALSE otherwise.

Since: 1.18

pango_ot_ruleset_description_free ()

void
pango_ot_ruleset_description_free (PangoOTRulesetDescription *desc);

pango_ot_ruleset_description_free is deprecated and should not be used in newly-written code.

Frees a ruleset description allocated by pango_ot_ruleset_description_copy().

Parameters

desc

an allocated PangoOTRulesetDescription

  

Since: 1.18

pango_ot_ruleset_description_hash ()

guint
pango_ot_ruleset_description_hash (const PangoOTRulesetDescription *desc);

pango_ot_ruleset_description_hash is deprecated and should not be used in newly-written code.

Computes a hash of a PangoOTRulesetDescription structure suitable to be used, for example, as an argument to g_hash_table_new().

Parameters

desc

a ruleset description

  

Returns

the hash value.

Since: 1.18

pango_ot_tag_from_language ()

PangoOTTag
pango_ot_tag_from_language (PangoLanguage *language);

pango_ot_tag_from_language is deprecated and should not be used in newly-written code.

Finds the OpenType language-system tag best describing language .

Parameters

language

A PangoLanguage, or NULL.

[nullable]

Returns

PangoOTTag best matching language or PANGO_OT_TAG_DEFAULT_LANGUAGE if none found or if language is NULL.

Since: 1.18

pango_ot_tag_from_script ()

PangoOTTag
pango_ot_tag_from_script (PangoScript script);

pango_ot_tag_from_script is deprecated and should not be used in newly-written code.

Finds the OpenType script tag corresponding to script .

The PANGO_SCRIPT_COMMON, PANGO_SCRIPT_INHERITED, and PANGO_SCRIPT_UNKNOWN scripts are mapped to the OpenType 'DFLT' script tag that is also defined as PANGO_OT_TAG_DEFAULT_SCRIPT.

Note that multiple PangoScript values may map to the same OpenType script tag. In particular, PANGO_SCRIPT_HIRAGANA and PANGO_SCRIPT_KATAKANA both map to the OT tag 'kana'.

Parameters

script

A PangoScript

  

Returns

PangoOTTag corresponding to script or PANGO_OT_TAG_DEFAULT_SCRIPT if none found.

Since: 1.18

pango_ot_tag_to_language ()

PangoLanguage *
pango_ot_tag_to_language (PangoOTTag language_tag);

pango_ot_tag_to_language is deprecated and should not be used in newly-written code.

Finds a PangoLanguage corresponding to language_tag .

Parameters

language_tag

A PangoOTTag OpenType language-system tag

  

Returns

PangoLanguage best matching language_tag or PangoLanguage corresponding to the string "xx" if none found.

Since: 1.18

pango_ot_tag_to_script ()

PangoScript
pango_ot_tag_to_script (PangoOTTag script_tag);

pango_ot_tag_to_script is deprecated and should not be used in newly-written code.

Finds the PangoScript corresponding to script_tag .

The 'DFLT' script tag is mapped to PANGO_SCRIPT_COMMON.

Note that an OpenType script tag may correspond to multiple PangoScript values. In such cases, the PangoScript value with the smallest value is returned. In particular, PANGO_SCRIPT_HIRAGANA and PANGO_SCRIPT_KATAKANA both map to the OT tag 'kana'. This function will return PANGO_SCRIPT_HIRAGANA for 'kana'.

Parameters

script_tag

A PangoOTTag OpenType script tag

  

Returns

PangoScript corresponding to script_tag or PANGO_SCRIPT_UNKNOWN if none found.

Since: 1.18

Types and Values

PangoOTTag

typedef guint32 PangoOTTag;

PangoOTTag is deprecated and should not be used in newly-written code.

The PangoOTTag typedef is used to represent TrueType and OpenType four letter tags inside Pango. Use PANGO_OT_TAG_MAKE() or PANGO_OT_TAG_MAKE_FROM_STRING() macros to create PangoOTTags manually.

PangoOTInfo

typedef struct _PangoOTInfo PangoOTInfo;

PangoOTInfo is deprecated and should not be used in newly-written code.

The PangoOTInfo struct contains the various tables associated with an OpenType font. It contains only private fields and should only be accessed via the pango_ot_info_* functions which are documented below. To obtain a PangoOTInfo, use pango_ot_info_get().

PangoOTBuffer

typedef struct _PangoOTBuffer PangoOTBuffer;

PangoOTBuffer is deprecated and should not be used in newly-written code.

The PangoOTBuffer structure is used to store strings of glyphs associated with a PangoFcFont, suitable for OpenType layout processing. It contains only private fields and should only be accessed via the pango_ot_buffer_* functions which are documented below. To obtain a PangoOTBuffer, use pango_ot_buffer_new().

struct PangoOTGlyph

struct PangoOTGlyph {
  guint32  glyph;
  guint    properties;
  guint    cluster;
  gushort  component;
  gushort  ligID;

  guint    internal;
};

PangoOTGlyph is deprecated and should not be used in newly-written code.

The PangoOTGlyph structure represents a single glyph together with information used for OpenType layout processing of the glyph. It contains the following fields.

Members

guint32 glyph;

the glyph itself.

  

guint properties;

the properties value, identifying which features should be applied on this glyph. See pango_ot_ruleset_add_feature().

  

guint cluster;

the cluster that this glyph belongs to.

  

gushort component;

a component value, set by the OpenType layout engine.

  

gushort ligID;

a ligature index value, set by the OpenType layout engine.

  

guint internal;

for Pango internal use

  

PangoOTRuleset

typedef struct _PangoOTRuleset PangoOTRuleset;

PangoOTRuleset is deprecated and should not be used in newly-written code.

The PangoOTRuleset structure holds a set of features selected from the tables in an OpenType font. (A feature is an operation such as adjusting glyph positioning that should be applied to a text feature such as a certain type of accent.) A PangoOTRuleset is created with pango_ot_ruleset_new(), features are added to it with pango_ot_ruleset_add_feature(), then it is applied to a PangoGlyphString with pango_ot_ruleset_shape().

struct PangoOTRulesetDescription

struct PangoOTRulesetDescription {
  PangoScript               script;
  PangoLanguage            *language;
  const PangoOTFeatureMap  *static_gsub_features;
  guint                   n_static_gsub_features;
  const PangoOTFeatureMap  *static_gpos_features;
  guint                   n_static_gpos_features;
  const PangoOTFeatureMap  *other_features;
  guint                   n_other_features;
};

PangoOTRulesetDescription is deprecated and should not be used in newly-written code.

The PangoOTRuleset structure holds all the information needed to build a complete PangoOTRuleset from an OpenType font. The main use of this struct is to act as the key for a per-font hash of rulesets. The user populates a ruleset description and gets the ruleset using pango_ot_ruleset_get_for_description() or create a new one using pango_ot_ruleset_new_from_description().

Members

PangoScript script;

a PangoScript.

  

PangoLanguage *language;

a PangoLanguage.

  

const PangoOTFeatureMap *static_gsub_features;

static map of GSUB features, or NULL.

[nullable]

guint n_static_gsub_features;

length of static_gsub_features , or 0.

  

const PangoOTFeatureMap *static_gpos_features;

static map of GPOS features, or NULL.

[nullable]

guint n_static_gpos_features;

length of static_gpos_features , or 0.

  

const PangoOTFeatureMap *other_features;

map of extra features to add to both GSUB and GPOS, or NULL. Unlike the static maps, this pointer need not live beyond the life of function calls taking this struct.

[nullable]

guint n_other_features;

length of other_features , or 0.

  

Since: 1.18

enum PangoOTTableType

PangoOTTableType is deprecated and should not be used in newly-written code.

The PangoOTTableType enumeration values are used to identify the various OpenType tables in the pango_ot_info_* functions.

Members

PANGO_OT_TABLE_GSUB

The GSUB table.

  

PANGO_OT_TABLE_GPOS

The GPOS table.

  

struct PangoOTFeatureMap

struct PangoOTFeatureMap {
  char     feature_name[5];
  gulong   property_bit;
};

PangoOTFeatureMap is deprecated and should not be used in newly-written code.

The PangoOTFeatureMap typedef is used to represent an OpenType feature with the property bit associated with it. The feature tag is represented as a char array instead of a PangoOTTag for convenience.

Members

char feature_name[5];

feature tag in represented as four-letter ASCII string.

  

gulong property_bit;

the property bit to use for this feature. See pango_ot_ruleset_add_feature() for details.

  

Since: 1.18

PANGO_OT_ALL_GLYPHS

#define PANGO_OT_ALL_GLYPHS			((guint) 0xFFFF)

PANGO_OT_ALL_GLYPHS is deprecated and should not be used in newly-written code.

This is used as the property bit in pango_ot_ruleset_add_feature() when a feature should be applied to all glyphs.

Since: 1.16

PANGO_OT_NO_FEATURE

#define PANGO_OT_NO_FEATURE			((guint) 0xFFFF)

PANGO_OT_NO_FEATURE is deprecated and should not be used in newly-written code.

This is used as a feature index that represent no feature, that is, should be skipped. It may be returned as feature index by pango_ot_info_find_feature() if the feature is not found, and pango_ot_ruleset_add_feature() function automatically skips this value, so no special handling is required by the user.

Since: 1.18

PANGO_OT_NO_SCRIPT

#define PANGO_OT_NO_SCRIPT			((guint) 0xFFFF)

PANGO_OT_NO_SCRIPT is deprecated and should not be used in newly-written code.

This is used as a script index that represent no script, that is, when the requested script was not found, and a default ('DFLT') script was not found either. It may be returned as script index by pango_ot_info_find_script() if the script or a default script are not found, all other functions taking a script index essentially return if the input script index is this value, so no special handling is required by the user.

Since: 1.18

PANGO_OT_DEFAULT_LANGUAGE

#define PANGO_OT_DEFAULT_LANGUAGE		((guint) 0xFFFF)

PANGO_OT_DEFAULT_LANGUAGE is deprecated and should not be used in newly-written code.

This is used as the language index in pango_ot_info_find_feature() when the default language system of the script is desired.

It is also returned by pango_ot_info_find_language() if the requested language is not found, or the requested language tag was PANGO_OT_TAG_DEFAULT_LANGUAGE. The end result is that one can always call pango_ot_tag_from_language() followed by pango_ot_info_find_language() and pass the result to pango_ot_info_find_feature() without having to worry about falling back to default language system explicitly.

Since: 1.16

PANGO_OT_TAG_DEFAULT_LANGUAGE

#define PANGO_OT_TAG_DEFAULT_LANGUAGE		PANGO_OT_TAG_MAKE ('d', 'f', 'l', 't')

PANGO_OT_TAG_DEFAULT_LANGUAGE is deprecated and should not be used in newly-written code.

This is a PangoOTTag representing a special language tag 'dflt'. It is returned as language tag by pango_ot_tag_from_language() if the requested language is not found. It is safe to pass this value to pango_ot_info_find_language() as that function falls back to returning default language-system if the requested language tag is not found.

Since: 1.18

PANGO_OT_TAG_DEFAULT_SCRIPT

#define PANGO_OT_TAG_DEFAULT_SCRIPT		PANGO_OT_TAG_MAKE ('D', 'F', 'L', 'T')

PANGO_OT_TAG_DEFAULT_SCRIPT is deprecated and should not be used in newly-written code.

This is a PangoOTTag representing the special script tag 'DFLT'. It is returned as script tag by pango_ot_tag_from_script() if the requested script is not found.

Since: 1.18

Generated by GTK-Doc V1.33.0
docs/html/api-index-deprecated.html0000664000175000017500000011677714002404370017461 0ustar mclasenmclasen Index of deprecated symbols: Pango Reference Manual

Index of deprecated symbols

B

PangoBidiType, enum in Bidirectional Text
pango_bidi_type_for_unichar, function in Bidirectional Text
pango_break, function in Text Processing

C

pango_cairo_font_map_create_context, function in Cairo Rendering
pango_coverage_from_bytes, function in Coverage Maps
pango_coverage_max, function in Coverage Maps
pango_coverage_to_bytes, function in Coverage Maps

E

PangoEngine, struct in Engines
PangoEngineClass, struct in Engines
PangoEngineInfo, struct in Engines
PangoEngineLang, struct in PangoEngineLang
PangoEngineLangClass, struct in PangoEngineLang
PangoEngineScriptInfo, struct in Engines
PangoEngineShape, struct in PangoEngineShape
PangoEngineShapeClass, struct in PangoEngineShape
PANGO_ENGINE_LANG_DEFINE_TYPE, macro in PangoEngineLang
PANGO_ENGINE_SHAPE_DEFINE_TYPE, macro in PangoEngineShape
PANGO_ENGINE_TYPE_LANG, macro in PangoEngineLang
PANGO_ENGINE_TYPE_SHAPE, macro in PangoEngineShape

F

PangoFcFont, struct in PangoFcFont
pango_fc_font_get_unknown_glyph, function in PangoFcFont
pango_fc_font_has_char, function in PangoFcFont
pango_fc_font_kern_glyphs, function in PangoFcFont
pango_fc_font_lock_face, function in PangoFcFont
pango_fc_font_map_create_context, function in PangoFcFontMap
pango_fc_font_unlock_face, function in PangoFcFont
pango_find_base_dir, function in Bidirectional Text
pango_find_map, function in Modules
PangoFont, struct in Fonts
PangoFontFace, struct in Fonts
PangoFontFamily, struct in Fonts
pango_font_find_shaper, function in Fonts
pango_ft2_font_get_coverage, function in FreeType Fonts and Rendering
pango_ft2_font_get_face, function in FreeType Fonts and Rendering
pango_ft2_font_get_kerning, function in FreeType Fonts and Rendering
pango_ft2_font_map_create_context, function in FreeType Fonts and Rendering
pango_ft2_font_map_for_display, function in FreeType Fonts and Rendering
pango_ft2_font_map_set_default_substitute, function in FreeType Fonts and Rendering
pango_ft2_font_map_substitute_changed, function in FreeType Fonts and Rendering
pango_ft2_get_context, function in FreeType Fonts and Rendering
pango_ft2_get_unknown_glyph, function in FreeType Fonts and Rendering
pango_ft2_shutdown_display, function in FreeType Fonts and Rendering

G

pango_get_mirror_char, function in Bidirectional Text

I

PangoIncludedModule, struct in Modules

M

PangoMap, struct in Modules
PangoMapEntry, struct in Modules
pango_map_get_engine, function in Modules
pango_map_get_engines, function in Modules
pango_module_register, function in Modules

O

PangoOTBuffer, struct in OpenType Font Handling
PangoOTFeatureMap, struct in OpenType Font Handling
PangoOTGlyph, struct in OpenType Font Handling
PangoOTInfo, struct in OpenType Font Handling
PangoOTRuleset, struct in OpenType Font Handling
PangoOTRulesetDescription, struct in OpenType Font Handling
PangoOTTableType, enum in OpenType Font Handling
PangoOTTag, typedef in OpenType Font Handling
PANGO_OT_ALL_GLYPHS, macro in OpenType Font Handling
pango_ot_buffer_add_glyph, function in OpenType Font Handling
pango_ot_buffer_clear, function in OpenType Font Handling
pango_ot_buffer_destroy, function in OpenType Font Handling
pango_ot_buffer_get_glyphs, function in OpenType Font Handling
pango_ot_buffer_new, function in OpenType Font Handling
pango_ot_buffer_output, function in OpenType Font Handling
pango_ot_buffer_set_rtl, function in OpenType Font Handling
pango_ot_buffer_set_zero_width_marks, function in OpenType Font Handling
PANGO_OT_DEFAULT_LANGUAGE, macro in OpenType Font Handling
pango_ot_info_find_feature, function in OpenType Font Handling
pango_ot_info_find_language, function in OpenType Font Handling
pango_ot_info_find_script, function in OpenType Font Handling
pango_ot_info_get, function in OpenType Font Handling
pango_ot_info_list_features, function in OpenType Font Handling
pango_ot_info_list_languages, function in OpenType Font Handling
pango_ot_info_list_scripts, function in OpenType Font Handling
PANGO_OT_NO_FEATURE, macro in OpenType Font Handling
PANGO_OT_NO_SCRIPT, macro in OpenType Font Handling
pango_ot_ruleset_add_feature, function in OpenType Font Handling
pango_ot_ruleset_description_copy, function in OpenType Font Handling
pango_ot_ruleset_description_equal, function in OpenType Font Handling
pango_ot_ruleset_description_free, function in OpenType Font Handling
pango_ot_ruleset_description_hash, function in OpenType Font Handling
pango_ot_ruleset_get_feature_count, function in OpenType Font Handling
pango_ot_ruleset_get_for_description, function in OpenType Font Handling
pango_ot_ruleset_maybe_add_feature, function in OpenType Font Handling
pango_ot_ruleset_maybe_add_features, function in OpenType Font Handling
pango_ot_ruleset_new, function in OpenType Font Handling
pango_ot_ruleset_new_for, function in OpenType Font Handling
pango_ot_ruleset_new_from_description, function in OpenType Font Handling
pango_ot_ruleset_position, function in OpenType Font Handling
pango_ot_ruleset_substitute, function in OpenType Font Handling
PANGO_OT_TAG_DEFAULT_LANGUAGE, macro in OpenType Font Handling
PANGO_OT_TAG_DEFAULT_SCRIPT, macro in OpenType Font Handling
pango_ot_tag_from_language, function in OpenType Font Handling
pango_ot_tag_from_script, function in OpenType Font Handling
PANGO_OT_TAG_MAKE, macro in OpenType Font Handling
PANGO_OT_TAG_MAKE_FROM_STRING, macro in OpenType Font Handling
pango_ot_tag_to_language, function in OpenType Font Handling
pango_ot_tag_to_script, function in OpenType Font Handling

P

pango_parse_enum, function in Miscellaneous Utilities

R

pango_read_line, function in Miscellaneous Utilities

S

pango_scan_int, function in Miscellaneous Utilities
pango_scan_string, function in Miscellaneous Utilities
pango_scan_word, function in Miscellaneous Utilities
script_engine_create, function in Engines
script_engine_exit, function in Engines
script_engine_init, function in Engines
script_engine_list, function in Engines
pango_script_for_unichar, function in Scripts and Languages
pango_skip_space, function in Miscellaneous Utilities
pango_split_file_list, function in Miscellaneous Utilities

T

pango_trim_string, function in Miscellaneous Utilities

U

pango_unichar_direction, function in Bidirectional Text

W

pango_win32_font_done_font, function in Win32 Fonts and Rendering
pango_win32_font_get_glyph_index, function in Win32 Fonts and Rendering
pango_win32_font_get_metrics_factor, function in Win32 Fonts and Rendering
pango_win32_font_select_font, function in Win32 Fonts and Rendering
pango_win32_get_context, function in Win32 Fonts and Rendering
pango_win32_get_dc, function in Win32 Fonts and Rendering
pango_win32_get_debug_flag, function in Win32 Fonts and Rendering
pango_win32_get_unknown_glyph, function in Win32 Fonts and Rendering

X

pango_xft_font_get_display, function in Xft Fonts and Rendering
pango_xft_font_get_font, function in Xft Fonts and Rendering
pango_xft_font_get_glyph, function in Xft Fonts and Rendering
pango_xft_font_get_unknown_glyph, function in Xft Fonts and Rendering
pango_xft_font_has_char, function in Xft Fonts and Rendering
pango_xft_font_lock_face, function in Xft Fonts and Rendering
pango_xft_font_unlock_face, function in Xft Fonts and Rendering
pango_xft_get_context, function in Xft Fonts and Rendering
pango_xft_set_default_substitute, function in Xft Fonts and Rendering
pango_xft_substitute_changed, function in Xft Fonts and Rendering
Generated by GTK-Doc V1.33.0
docs/html/pango-Text-Processing.html0000664000175000017500000023040214002404370017623 0ustar mclasenmclasen Rendering: Pango Reference Manual

Rendering

Rendering — Functions to run the rendering pipeline

Functions

GList * pango_itemize ()
GList * pango_itemize_with_base_dir ()
void pango_item_free ()
PangoItem * pango_item_copy ()
PangoItem * pango_item_new ()
PangoItem * pango_item_split ()
void pango_item_apply_attrs ()
GList * pango_reorder_items ()
void pango_break ()
void pango_get_log_attrs ()
void pango_find_paragraph_boundary ()
void pango_default_break ()
void pango_tailor_break ()
void pango_shape ()
void pango_shape_full ()
void pango_shape_with_flags ()

Types and Values

struct PangoItem
struct PangoAnalysis
#define PANGO_ANALYSIS_FLAG_CENTERED_BASELINE
#define PANGO_ANALYSIS_FLAG_IS_ELLIPSIS
#define PANGO_ANALYSIS_FLAG_NEED_HYPHEN
  PangoLogAttr
enum PangoShapeFlags

Object Hierarchy

    GBoxed
    ╰── PangoItem
    GFlags
    ╰── PangoShapeFlags

Description

The Pango rendering pipeline takes a string of Unicode characters and converts it into glyphs. The functions described in this section accomplish various steps of this process.

Functions

pango_itemize ()

GList *
pango_itemize (PangoContext *context,
               const char *text,
               int start_index,
               int length,
               PangoAttrList *attrs,
               PangoAttrIterator *cached_iter);

Breaks a piece of text into segments with consistent directional level and shaping engine. Each byte of text will be contained in exactly one of the items in the returned list; the generated list of items will be in logical order (the start offsets of the items are ascending).

cached_iter should be an iterator over attrs currently positioned at a range before or containing start_index ; cached_iter will be advanced to the range covering the position just after start_index + length . (i.e. if itemizing in a loop, just keep passing in the same cached_iter ).

Parameters

context

a structure holding information that affects the itemization process.

  

text

the text to itemize. Must be valid UTF-8

  

start_index

first byte in text to process

  

length

the number of bytes (not characters) to process after start_index . This must be >= 0.

  

attrs

the set of attributes that apply to text .

  

cached_iter

Cached attribute iterator, or NULL.

[allow-none]

Returns

a GList of PangoItem structures. The items should be freed using pango_item_free() probably in combination with g_list_foreach(), and the list itself using g_list_free().

[transfer full][element-type Pango.Item]

pango_itemize_with_base_dir ()

GList *
pango_itemize_with_base_dir (PangoContext *context,
                             PangoDirection base_dir,
                             const char *text,
                             int start_index,
                             int length,
                             PangoAttrList *attrs,
                             PangoAttrIterator *cached_iter);

Like pango_itemize(), but the base direction to use when computing bidirectional levels (see pango_context_set_base_dir()), is specified explicitly rather than gotten from the PangoContext.

Parameters

context

a structure holding information that affects the itemization process.

  

base_dir

base direction to use for bidirectional processing

  

text

the text to itemize.

  

start_index

first byte in text to process

  

length

the number of bytes (not characters) to process after start_index . This must be >= 0.

  

attrs

the set of attributes that apply to text .

  

cached_iter

Cached attribute iterator, or NULL.

[allow-none]

Returns

a GList of PangoItem structures. The items should be freed using pango_item_free() probably in combination with g_list_foreach(), and the list itself using g_list_free().

[transfer full][element-type Pango.Item]

Since: 1.4

pango_item_free ()

void
pango_item_free (PangoItem *item);

Free a PangoItem and all associated memory.

Parameters

item

a PangoItem, may be NULL.

[nullable]

pango_item_copy ()

PangoItem *
pango_item_copy (PangoItem *item);

Copy an existing PangoItem structure.

Parameters

item

a PangoItem, may be NULL.

[nullable]

Returns

the newly allocated PangoItem, which should be freed with pango_item_free(), or NULL if item was NULL.

[nullable]

pango_item_new ()

PangoItem *
pango_item_new (void);

Creates a new PangoItem structure initialized to default values.

Returns

the newly allocated PangoItem, which should be freed with pango_item_free().

pango_item_split ()

PangoItem *
pango_item_split (PangoItem *orig,
                  int split_index,
                  int split_offset);

Modifies orig to cover only the text after split_index , and returns a new item that covers the text before split_index that used to be in orig . You can think of split_index as the length of the returned item. split_index may not be 0, and it may not be greater than or equal to the length of orig (that is, there must be at least one byte assigned to each item, you can't create a zero-length item). split_offset is the length of the first item in chars, and must be provided because the text used to generate the item isn't available, so pango_item_split() can't count the char length of the split items itself.

Parameters

orig

a PangoItem

  

split_index

byte index of position to split item, relative to the start of the item

  

split_offset

number of chars between start of orig and split_index

 

Returns

new item representing text before split_index , which should be freed with pango_item_free().

pango_item_apply_attrs ()

void
pango_item_apply_attrs (PangoItem *item,
                        PangoAttrIterator *iter);

Add attributes to a PangoItem. The idea is that you have attributes that don't affect itemization, such as font features, so you filter them out using pango_attr_list_filter(), itemize your text, then reapply the attributes to the resulting items using this function.

The iter should be positioned before the range of the item, and will be advanced past it. This function is meant to be called in a loop over the items resulting from itemization, while passing the iter to each call.

Parameters

item

a PangoItem

  

iter

a PangoAttrIterator

  

Since: 1.44

pango_reorder_items ()

GList *
pango_reorder_items (GList *logical_items);

From a list of items in logical order and the associated directional levels, produce a list in visual order. The original list is unmodified.

Parameters

logical_items

a GList of PangoItem in logical order.

[element-type Pango.Item]

Returns

a GList of PangoItem structures in visual order.

(Please open a bug if you use this function. It is not a particularly convenient interface, and the code is duplicated elsewhere in Pango for that reason.).

[transfer full][element-type Pango.Item]

pango_break ()

void
pango_break (const gchar *text,
             int length,
             PangoAnalysis *analysis,
             PangoLogAttr *attrs,
             int attrs_len);

pango_break has been deprecated since version 1.44 and should not be used in newly-written code.

Use pango_default_break() and pango_tailor_break()

Determines possible line, word, and character breaks for a string of Unicode text with a single analysis. For most purposes you may want to use pango_get_log_attrs().

Parameters

text

the text to process. Must be valid UTF-8

  

length

length of text in bytes (may be -1 if text is nul-terminated)

  

analysis

PangoAnalysis structure from pango_itemize()

  

attrs

an array to store character information in.

[array length=attrs_len]

attrs_len

size of the array passed as attrs

 

pango_get_log_attrs ()

void
pango_get_log_attrs (const char *text,
                     int length,
                     int level,
                     PangoLanguage *language,
                     PangoLogAttr *log_attrs,
                     int attrs_len);

Computes a PangoLogAttr for each character in text . The log_attrs array must have one PangoLogAttr for each position in text ; if text contains N characters, it has N+1 positions, including the last position at the end of the text. text should be an entire paragraph; logical attributes can't be computed without context (for example you need to see spaces on either side of a word to know the word is a word).

Parameters

text

text to process. Must be valid UTF-8

  

length

length in bytes of text

 

level

embedding level, or -1 if unknown

  

language

language tag

  

log_attrs

array with one PangoLogAttr per character in text , plus one extra, to be filled in.

[array length=attrs_len]

attrs_len

length of log_attrs array

  

pango_find_paragraph_boundary ()

void
pango_find_paragraph_boundary (const gchar *text,
                               gint length,
                               gint *paragraph_delimiter_index,
                               gint *next_paragraph_start);

Locates a paragraph boundary in text . A boundary is caused by delimiter characters, such as a newline, carriage return, carriage return-newline pair, or Unicode paragraph separator character. The index of the run of delimiters is returned in paragraph_delimiter_index . The index of the start of the paragraph (index after all delimiters) is stored in next_paragraph_start .

If no delimiters are found, both paragraph_delimiter_index and next_paragraph_start are filled with the length of text (an index one off the end).

Parameters

text

UTF-8 text

  

length

length of text in bytes, or -1 if nul-terminated

  

paragraph_delimiter_index

return location for index of delimiter.

[out]

next_paragraph_start

return location for start of next paragraph.

[out]

pango_default_break ()

void
pango_default_break (const gchar *text,
                     int length,
                     PangoAnalysis *analysis,
                     PangoLogAttr *attrs,
                     int attrs_len);

This is the default break algorithm. It applies Unicode rules without language-specific tailoring, therefore the analyis argument is unused and can be NULL.

See pango_tailor_break() for language-specific breaks.

Parameters

text

text to break. Must be valid UTF-8

  

length

length of text in bytes (may be -1 if text is nul-terminated)

  

analysis

a PangoAnalysis for the text .

[nullable]

attrs

logical attributes to fill in

  

attrs_len

size of the array passed as attrs

 

pango_tailor_break ()

void
pango_tailor_break (const char *text,
                    int length,
                    PangoAnalysis *analysis,
                    int offset,
                    PangoLogAttr *log_attrs,
                    int log_attrs_len);

Apply language-specific tailoring to the breaks in log_attrs , which are assumed to have been produced by pango_default_break().

If offset is not -1, it is used to apply attributes from analysis that are relevant to line breaking.

Parameters

text

text to process. Must be valid UTF-8

  

length

length in bytes of text

 

analysis

PangoAnalysis structure from pango_itemize() for text

 

offset

Byte offset of text from the beginning of the paragraph, or -1 to ignore attributes from analysis

 

log_attrs

array with one PangoLogAttr per character in text , plus one extra, to be filled in.

[array length=log_attrs_len]

log_attrs_len

length of log_attrs array

  

Since: 1.44

pango_shape ()

void
pango_shape (const char *text,
             int length,
             const PangoAnalysis *analysis,
             PangoGlyphString *glyphs);

Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize().

It is recommended that you use pango_shape_full() instead, since that API allows for shaping interaction happening across text item boundaries.

Note that the extra attributes in the analyis that is returned from pango_itemize() have indices that are relative to the entire paragraph, so you need to subtract the item offset from their indices before calling pango_shape().

Parameters

text

the text to process

  

length

the length (in bytes) of text

 

analysis

PangoAnalysis structure from pango_itemize()

  

glyphs

glyph string in which to store results

  

pango_shape_full ()

void
pango_shape_full (const char *item_text,
                  int item_length,
                  const char *paragraph_text,
                  int paragraph_length,
                  const PangoAnalysis *analysis,
                  PangoGlyphString *glyphs);

Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize().

This is similar to pango_shape(), except it also can optionally take the full paragraph text as input, which will then be used to perform certain cross-item shaping interactions. If you have access to the broader text of which item_text is part of, provide the broader text as paragraph_text . If paragraph_text is NULL, item text is used instead.

Note that the extra attributes in the analyis that is returned from pango_itemize() have indices that are relative to the entire paragraph, so you do not pass the full paragraph text as paragraph_text , you need to subtract the item offset from their indices before calling pango_shape_full().

Parameters

item_text

valid UTF-8 text to shape.

  

item_length

the length (in bytes) of item_text . -1 means nul-terminated text.

  

paragraph_text

text of the paragraph (see details). May be NULL.

[allow-none]

paragraph_length

the length (in bytes) of paragraph_text . -1 means nul-terminated text.

  

analysis

PangoAnalysis structure from pango_itemize().

  

glyphs

glyph string in which to store results.

  

Since: 1.32

pango_shape_with_flags ()

void
pango_shape_with_flags (const char *item_text,
                        int item_length,
                        const char *paragraph_text,
                        int paragraph_length,
                        const PangoAnalysis *analysis,
                        PangoGlyphString *glyphs,
                        PangoShapeFlags flags);

Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize().

This is similar to pango_shape_full(), except it also takes flags that can influence the shaping process.

Note that the extra attributes in the analyis that is returned from pango_itemize() have indices that are relative to the entire paragraph, so you do not pass the full paragraph text as paragraph_text , you need to subtract the item offset from their indices before calling pango_shape_with_flags().

Parameters

item_text

valid UTF-8 text to shape

  

item_length

the length (in bytes) of item_text . -1 means nul-terminated text.

  

paragraph_text

text of the paragraph (see details). May be NULL.

[allow-none]

paragraph_length

the length (in bytes) of paragraph_text . -1 means nul-terminated text.

  

analysis

PangoAnalysis structure from pango_itemize()

  

glyphs

glyph string in which to store results

  

flags

flags influencing the shaping process

  

Since: 1.44

Types and Values

struct PangoItem

struct PangoItem {
  gint offset;
  gint length;
  gint num_chars;
  PangoAnalysis analysis;
};

The PangoItem structure stores information about a segment of text.

Members

gint offset;

byte offset of the start of this item in text.

  

gint length;

length of this item in bytes.

  

gint num_chars;

number of Unicode characters in the item.

  

PangoAnalysis analysis;

analysis results for the item.

  

struct PangoAnalysis

struct PangoAnalysis {
  PangoEngineShape *shape_engine;
  PangoEngineLang  *lang_engine;
  PangoFont *font;

  guint8 level;
  guint8 gravity;
  guint8 flags;

  guint8 script;
  PangoLanguage *language;

  GSList *extra_attrs;
};

The PangoAnalysis structure stores information about the properties of a segment of text.

Members

PangoEngineShape *shape_engine;

unused

  

PangoEngineLang *lang_engine;

unused

  

PangoFont *font;

the font for this segment.

  

guint8 level;

the bidirectional level for this segment.

  

guint8 gravity;

the glyph orientation for this segment (A PangoGravity).

  

guint8 flags;

boolean flags for this segment (Since: 1.16).

  

guint8 script;

the detected script for this segment (A PangoScript) (Since: 1.18).

  

PangoLanguage *language;

the detected language for this segment.

  

GSList *extra_attrs;

extra attributes for this segment.

  

PANGO_ANALYSIS_FLAG_CENTERED_BASELINE

#define PANGO_ANALYSIS_FLAG_CENTERED_BASELINE (1 << 0)

Whether the segment should be shifted to center around the baseline. Used in vertical writing directions mostly.

Since: 1.16

PANGO_ANALYSIS_FLAG_IS_ELLIPSIS

#define PANGO_ANALYSIS_FLAG_IS_ELLIPSIS (1 << 1)

This flag is used to mark runs that hold ellipsized text, in an ellipsized layout.

Since: 1.36.7

PANGO_ANALYSIS_FLAG_NEED_HYPHEN

#define PANGO_ANALYSIS_FLAG_NEED_HYPHEN (1 << 2)

This flag tells Pango to add a hyphen at the end of the run during shaping.

Since: 1.44

PangoLogAttr

typedef struct {
  guint is_line_break               : 1;
  guint is_mandatory_break          : 1;
  guint is_char_break               : 1;
  guint is_white                    : 1;
  guint is_cursor_position          : 1;
  guint is_word_start               : 1;
  guint is_word_end                 : 1;
  guint is_sentence_boundary        : 1;
  guint is_sentence_start           : 1;
  guint is_sentence_end             : 1;
  guint backspace_deletes_character : 1;
  guint is_expandable_space         : 1;
  guint is_word_boundary            : 1;
} PangoLogAttr;

The PangoLogAttr structure stores information about the attributes of a single character.

Members

guint is_line_break : 1;

if set, can break line in front of character

  

guint is_mandatory_break : 1;

if set, must break line in front of character

  

guint is_char_break : 1;

if set, can break here when doing character wrapping

  

guint is_white : 1;

is whitespace character

  

guint is_cursor_position : 1;

if set, cursor can appear in front of character. i.e. this is a grapheme boundary, or the first character in the text. This flag implements Unicode's

Grapheme Cluster Boundaries semantics.		  

guint is_word_start : 1;

is first character in a word

  

guint is_word_end : 1;

is first non-word char after a word Note that in degenerate cases, you could have both is_word_start and is_word_end set for some character.

  

guint is_sentence_boundary : 1;

is a sentence boundary. There are two ways to divide sentences. The first assigns all inter-sentence whitespace/control/format chars to some sentence, so all chars are in some sentence; is_sentence_boundary denotes the boundaries there. The second way doesn't assign between-sentence spaces, etc. to any sentence, so is_sentence_start /is_sentence_end mark the boundaries of those sentences.

  

guint is_sentence_start : 1;

is first character in a sentence

  

guint is_sentence_end : 1;

is first char after a sentence. Note that in degenerate cases, you could have both is_sentence_start and is_sentence_end set for some character. (e.g. no space after a period, so the next sentence starts right away)

  

guint backspace_deletes_character : 1;

if set, backspace deletes one character rather than the entire grapheme cluster. This field is only meaningful on grapheme boundaries (where is_cursor_position is set). In some languages, the full grapheme (e.g. letter + diacritics) is considered a unit, while in others, each decomposed character in the grapheme is a unit. In the default implementation of pango_break(), this bit is set on all grapheme boundaries except those following Latin, Cyrillic or Greek base characters.

  

guint is_expandable_space : 1;

is a whitespace character that can possibly be expanded for justification purposes. (Since: 1.18)

  

guint is_word_boundary : 1;

is a word boundary, as defined by UAX29. More specifically, means that this is not a position in the middle of a word. For example, both sides of a punctuation mark are considered word boundaries. This flag is particularly useful when selecting text word-by-word. This flag implements Unicode's

Word Boundaries semantics. (Since: 1.22)		  

enum PangoShapeFlags

Flags influencing the shaping process. These can be passed to pango_shape_with_flags().

Members

PANGO_SHAPE_NONE

Default value.

  

PANGO_SHAPE_ROUND_POSITIONS

Round glyph positions and widths to whole device units. This option should be set if the target renderer can't do subpixel positioning of glyphs.

  
Generated by GTK-Doc V1.33.0
docs/html/pango-hierarchy.html0000664000175000017500000002373114002404370016550 0ustar mclasenmclasen Object Hierarchy: Pango Reference Manual

Object Hierarchy

    GObject
    ├── PangoFont
    │   ╰── PangoFcFont
    │       ╰── PangoXftFont
    ├── PangoFontMap
    │   ╰── PangoFcFontMap
    │       ├── PangoFT2FontMap
    │       ╰── PangoXftFontMap
    ├── PangoRenderer
    │   ╰── PangoXftRenderer
    ├── PangoContext
    ├── PangoCoverage
    ├── PangoEngine
    │   ├── PangoEngineLang
    │   ╰── PangoEngineShape
    ├── PangoFcDecoder
    ├── PangoFontFace
    ├── PangoFontFamily
    ├── PangoFontset
    ├── PangoLayout
    ├── PangoOTInfo
    ╰── PangoOTRuleset
    GInterface
    ├── PangoCairoFont
    ╰── PangoCairoFontMap
    GEnum
    ├── PangoAlignment
    ├── PangoAttrType
    ├── PangoBidiType
    ├── PangoCoverageLevel
    ├── PangoDirection
    ├── PangoEllipsizeMode
    ├── PangoGravity
    ├── PangoGravityHint
    ├── PangoRenderPart
    ├── PangoScript
    ├── PangoStretch
    ├── PangoStyle
    ├── PangoTabAlign
    ├── PangoUnderline
    ├── PangoVariant
    ├── PangoWeight
    ╰── PangoWrapMode
    GBoxed
    ├── PangoAttrIterator
    ├── PangoAttrList
    ├── PangoAttribute
    ├── PangoColor
    ├── PangoFontDescription
    ├── PangoFontMetrics
    ├── PangoGlyphItem
    ├── PangoGlyphItemIter
    ├── PangoGlyphString
    ├── PangoItem
    ├── PangoLanguage
    ├── PangoLayoutIter
    ├── PangoLayoutLine
    ├── PangoMatrix
    ├── PangoScriptIter
    ╰── PangoTabArray
    GFlags
    ├── PangoFontMask
    ├── PangoShapeFlags
    ╰── PangoShowFlags
Generated by GTK-Doc V1.33.0
docs/html/api-index-full.html0000664000175000017500000060354714002404370016317 0ustar mclasenmclasen Index of all symbols: Pango Reference Manual

Index of all symbols

A

PangoAlignment, enum in Layout Objects
PangoAnalysis, struct in Text Processing
PANGO_ANALYSIS_FLAG_CENTERED_BASELINE, macro in Text Processing
PANGO_ANALYSIS_FLAG_IS_ELLIPSIS, macro in Text Processing
PANGO_ANALYSIS_FLAG_NEED_HYPHEN, macro in Text Processing
PANGO_ASCENT, macro in Glyph Storage
PangoAttrClass, struct in Text Attributes
PangoAttrColor, struct in Text Attributes
PangoAttrDataCopyFunc, user_function in Text Attributes
PangoAttrFilterFunc, user_function in Text Attributes
PangoAttrFloat, struct in Text Attributes
PangoAttrFontDesc, struct in Text Attributes
PangoAttrFontFeatures, struct in Text Attributes
PangoAttribute, struct in Text Attributes
pango_attribute_copy, function in Text Attributes
pango_attribute_destroy, function in Text Attributes
pango_attribute_equal, function in Text Attributes
pango_attribute_init, function in Text Attributes
PangoAttrInt, struct in Text Attributes
PangoAttrIterator, struct in Text Attributes
PangoAttrLanguage, struct in Text Attributes
PangoAttrList, struct in Text Attributes
PangoAttrShape, struct in Text Attributes
PangoAttrSize, struct in Text Attributes
PangoAttrString, struct in Text Attributes
PangoAttrType, enum in Text Attributes
pango_attr_allow_breaks_new, function in Text Attributes
pango_attr_background_alpha_new, function in Text Attributes
pango_attr_background_new, function in Text Attributes
pango_attr_fallback_new, function in Text Attributes
pango_attr_family_new, function in Text Attributes
pango_attr_font_desc_new, function in Text Attributes
pango_attr_font_features_new, function in Text Attributes
pango_attr_foreground_alpha_new, function in Text Attributes
pango_attr_foreground_new, function in Text Attributes
pango_attr_gravity_hint_new, function in Text Attributes
pango_attr_gravity_new, function in Text Attributes
PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING, macro in Text Attributes
PANGO_ATTR_INDEX_TO_TEXT_END, macro in Text Attributes
pango_attr_insert_hyphens_new, function in Text Attributes
pango_attr_iterator_copy, function in Text Attributes
pango_attr_iterator_destroy, function in Text Attributes
pango_attr_iterator_get, function in Text Attributes
pango_attr_iterator_get_attrs, function in Text Attributes
pango_attr_iterator_get_font, function in Text Attributes
pango_attr_iterator_next, function in Text Attributes
pango_attr_iterator_range, function in Text Attributes
pango_attr_language_new, function in Text Attributes
pango_attr_letter_spacing_new, function in Text Attributes
pango_attr_list_change, function in Text Attributes
pango_attr_list_copy, function in Text Attributes
pango_attr_list_equal, function in Text Attributes
pango_attr_list_filter, function in Text Attributes
pango_attr_list_get_attributes, function in Text Attributes
pango_attr_list_get_iterator, function in Text Attributes
pango_attr_list_insert, function in Text Attributes
pango_attr_list_insert_before, function in Text Attributes
pango_attr_list_new, function in Text Attributes
pango_attr_list_ref, function in Text Attributes
pango_attr_list_splice, function in Text Attributes
pango_attr_list_unref, function in Text Attributes
pango_attr_list_update, function in Text Attributes
pango_attr_overline_color_new, function in Text Attributes
pango_attr_overline_new, function in Text Attributes
pango_attr_rise_new, function in Text Attributes
pango_attr_scale_new, function in Text Attributes
pango_attr_shape_new, function in Text Attributes
pango_attr_shape_new_with_data, function in Text Attributes
pango_attr_show_new, function in Text Attributes
pango_attr_size_new, function in Text Attributes
pango_attr_size_new_absolute, function in Text Attributes
pango_attr_stretch_new, function in Text Attributes
pango_attr_strikethrough_color_new, function in Text Attributes
pango_attr_strikethrough_new, function in Text Attributes
pango_attr_style_new, function in Text Attributes
pango_attr_type_get_name, function in Text Attributes
pango_attr_type_register, function in Text Attributes
pango_attr_underline_color_new, function in Text Attributes
pango_attr_underline_new, function in Text Attributes
pango_attr_variant_new, function in Text Attributes
pango_attr_weight_new, function in Text Attributes

B

PangoBidiType, enum in Bidirectional Text
pango_bidi_type_for_unichar, function in Bidirectional Text
pango_break, function in Text Processing

C

PangoCairoFont, struct in Cairo Rendering
PangoCairoFontMap, struct in Cairo Rendering
PangoCairoShapeRendererFunc, user_function in Cairo Rendering
pango_cairo_context_get_font_options, function in Cairo Rendering
pango_cairo_context_get_resolution, function in Cairo Rendering
pango_cairo_context_get_shape_renderer, function in Cairo Rendering
pango_cairo_context_set_font_options, function in Cairo Rendering
pango_cairo_context_set_resolution, function in Cairo Rendering
pango_cairo_context_set_shape_renderer, function in Cairo Rendering
pango_cairo_create_context, function in Cairo Rendering
pango_cairo_create_layout, function in Cairo Rendering
pango_cairo_error_underline_path, function in Cairo Rendering
pango_cairo_font_get_scaled_font, function in Cairo Rendering
pango_cairo_font_map_create_context, function in Cairo Rendering
pango_cairo_font_map_get_default, function in Cairo Rendering
pango_cairo_font_map_get_font_type, function in Cairo Rendering
pango_cairo_font_map_get_resolution, function in Cairo Rendering
pango_cairo_font_map_new, function in Cairo Rendering
pango_cairo_font_map_new_for_font_type, function in Cairo Rendering
pango_cairo_font_map_set_default, function in Cairo Rendering
pango_cairo_font_map_set_resolution, function in Cairo Rendering
pango_cairo_glyph_string_path, function in Cairo Rendering
pango_cairo_layout_line_path, function in Cairo Rendering
pango_cairo_layout_path, function in Cairo Rendering
pango_cairo_show_error_underline, function in Cairo Rendering
pango_cairo_show_glyph_item, function in Cairo Rendering
pango_cairo_show_glyph_string, function in Cairo Rendering
pango_cairo_show_layout, function in Cairo Rendering
pango_cairo_show_layout_line, function in Cairo Rendering
pango_cairo_update_context, function in Cairo Rendering
pango_cairo_update_layout, function in Cairo Rendering
PangoColor, struct in Text Attributes
pango_color_copy, function in Text Attributes
pango_color_free, function in Text Attributes
pango_color_parse, function in Text Attributes
pango_color_parse_with_alpha, function in Text Attributes
pango_color_to_string, function in Text Attributes
PangoContext, struct in Contexts
pango_context_changed, function in Contexts
pango_context_get_base_dir, function in Contexts
pango_context_get_base_gravity, function in Contexts
pango_context_get_font_description, function in Contexts
pango_context_get_font_map, function in Contexts
pango_context_get_gravity, function in Contexts
pango_context_get_gravity_hint, function in Contexts
pango_context_get_language, function in Contexts
pango_context_get_matrix, function in Contexts
pango_context_get_metrics, function in Contexts
pango_context_get_round_glyph_positions, function in Contexts
pango_context_get_serial, function in Contexts
pango_context_list_families, function in Contexts
pango_context_load_font, function in Contexts
pango_context_load_fontset, function in Contexts
pango_context_new, function in Contexts
pango_context_set_base_dir, function in Contexts
pango_context_set_base_gravity, function in Contexts
pango_context_set_font_description, function in Contexts
pango_context_set_font_map, function in Contexts
pango_context_set_gravity_hint, function in Contexts
pango_context_set_language, function in Contexts
pango_context_set_matrix, function in Contexts
pango_context_set_round_glyph_positions, function in Contexts
pango_core_text_font_get_ctfont, function in CoreText Fonts
PangoCoverage, struct in Coverage Maps
PangoCoverageLevel, enum in Coverage Maps
pango_coverage_copy, function in Coverage Maps
pango_coverage_from_bytes, function in Coverage Maps
pango_coverage_get, function in Coverage Maps
pango_coverage_max, function in Coverage Maps
pango_coverage_new, function in Coverage Maps
pango_coverage_ref, function in Coverage Maps
pango_coverage_set, function in Coverage Maps
pango_coverage_to_bytes, function in Coverage Maps
pango_coverage_unref, function in Coverage Maps

D

pango_default_break, function in Text Processing
PANGO_DESCENT, macro in Glyph Storage
PangoDirection, enum in Bidirectional Text

E

PangoEllipsizeMode, enum in Layout Objects
PangoEngine, struct in Engines
PangoEngineClass, struct in Engines
PangoEngineInfo, struct in Engines
PangoEngineLang, struct in PangoEngineLang
PangoEngineLangClass, struct in PangoEngineLang
PangoEngineScriptInfo, struct in Engines
PangoEngineShape, struct in PangoEngineShape
PangoEngineShapeClass, struct in PangoEngineShape
PANGO_ENGINE_LANG_DEFINE_TYPE, macro in PangoEngineLang
PANGO_ENGINE_SHAPE_DEFINE_TYPE, macro in PangoEngineShape
PANGO_ENGINE_TYPE_LANG, macro in PangoEngineLang
PANGO_ENGINE_TYPE_SHAPE, macro in PangoEngineShape
pango_extents_to_pixels, function in Glyph Storage

F

PangoFcDecoder, struct in PangoFcDecoder
PangoFcDecoderClass, struct in PangoFcDecoder
PangoFcDecoderFindFunc, user_function in PangoFcFontMap
PangoFcFont, struct in PangoFcFont
PangoFcFont:fontmap, object property in PangoFcFont
PangoFcFont:pattern, object property in PangoFcFont
PangoFcFontClass, struct in PangoFcFont
PangoFcFontMap, struct in PangoFcFontMap
PangoFcFontMapClass, struct in PangoFcFontMap
PangoFcSubstituteFunc, user_function in PangoFcFontMap
pango_fc_decoder_get_charset, function in PangoFcDecoder
pango_fc_decoder_get_glyph, function in PangoFcDecoder
pango_fc_font_description_from_pattern, function in PangoFcFontMap
PANGO_FC_FONT_FEATURES, macro in PangoFcFontMap
pango_fc_font_get_glyph, function in PangoFcFont
pango_fc_font_get_languages, function in PangoFcFont
pango_fc_font_get_pattern, function in PangoFcFont
pango_fc_font_get_unknown_glyph, function in PangoFcFont
pango_fc_font_has_char, function in PangoFcFont
pango_fc_font_kern_glyphs, function in PangoFcFont
pango_fc_font_lock_face, function in PangoFcFont
pango_fc_font_map_add_decoder_find_func, function in PangoFcFontMap
pango_fc_font_map_cache_clear, function in PangoFcFontMap
pango_fc_font_map_config_changed, function in PangoFcFontMap
pango_fc_font_map_create_context, function in PangoFcFontMap
pango_fc_font_map_find_decoder, function in PangoFcFontMap
pango_fc_font_map_get_config, function in PangoFcFontMap
pango_fc_font_map_set_config, function in PangoFcFontMap
pango_fc_font_map_set_default_substitute, function in PangoFcFontMap
pango_fc_font_map_shutdown, function in PangoFcFontMap
pango_fc_font_map_substitute_changed, function in PangoFcFontMap
pango_fc_font_unlock_face, function in PangoFcFont
PANGO_FC_FONT_VARIATIONS, macro in PangoFcFontMap
PANGO_FC_GRAVITY, macro in PangoFcFontMap
PANGO_FC_PRGNAME, macro in PangoFcFontMap
PANGO_FC_VERSION, macro in PangoFcFontMap
pango_find_base_dir, function in Bidirectional Text
pango_find_map, function in Modules
pango_find_paragraph_boundary, function in Text Processing
PangoFont, struct in Fonts
PangoFontDescription, struct in Fonts
PangoFontFace, struct in Fonts
PangoFontFamily, struct in Fonts
PangoFontMap, struct in Fonts
PangoFontMapClass, struct in Fonts
PangoFontMask, enum in Fonts
PangoFontMetrics, struct in Fonts
PangoFontset, struct in Fonts
PangoFontsetClass, struct in Fonts
PangoFontsetForeachFunc, user_function in Fonts
pango_fontset_foreach, function in Fonts
pango_fontset_get_font, function in Fonts
pango_fontset_get_metrics, function in Fonts
pango_font_describe, function in Fonts
pango_font_describe_with_absolute_size, function in Fonts
pango_font_descriptions_free, function in Fonts
pango_font_description_better_match, function in Fonts
pango_font_description_copy, function in Fonts
pango_font_description_copy_static, function in Fonts
pango_font_description_equal, function in Fonts
pango_font_description_free, function in Fonts
pango_font_description_from_string, function in Fonts
pango_font_description_get_family, function in Fonts
pango_font_description_get_gravity, function in Fonts
pango_font_description_get_set_fields, function in Fonts
pango_font_description_get_size, function in Fonts
pango_font_description_get_size_is_absolute, function in Fonts
pango_font_description_get_stretch, function in Fonts
pango_font_description_get_style, function in Fonts
pango_font_description_get_variant, function in Fonts
pango_font_description_get_variations, function in Fonts
pango_font_description_get_weight, function in Fonts
pango_font_description_hash, function in Fonts
pango_font_description_merge, function in Fonts
pango_font_description_merge_static, function in Fonts
pango_font_description_new, function in Fonts
pango_font_description_set_absolute_size, function in Fonts
pango_font_description_set_family, function in Fonts
pango_font_description_set_family_static, function in Fonts
pango_font_description_set_gravity, function in Fonts
pango_font_description_set_size, function in Fonts
pango_font_description_set_stretch, function in Fonts
pango_font_description_set_style, function in Fonts
pango_font_description_set_variant, function in Fonts
pango_font_description_set_variations, function in Fonts
pango_font_description_set_variations_static, function in Fonts
pango_font_description_set_weight, function in Fonts
pango_font_description_to_filename, function in Fonts
pango_font_description_to_string, function in Fonts
pango_font_description_unset_fields, function in Fonts
pango_font_face_describe, function in Fonts
pango_font_face_get_face_name, function in Fonts
pango_font_face_get_family, function in Fonts
pango_font_face_is_synthesized, function in Fonts
pango_font_face_list_sizes, function in Fonts
pango_font_family_get_face, function in Fonts
pango_font_family_get_name, function in Fonts
pango_font_family_is_monospace, function in Fonts
pango_font_family_is_variable, function in Fonts
pango_font_family_list_faces, function in Fonts
pango_font_find_shaper, function in Fonts
pango_font_get_coverage, function in Fonts
pango_font_get_face, function in Fonts
pango_font_get_features, function in Fonts
pango_font_get_font_map, function in Fonts
pango_font_get_glyph_extents, function in Fonts
pango_font_get_hb_font, function in Fonts
pango_font_get_metrics, function in Fonts
pango_font_has_char, function in Fonts
pango_font_map_changed, function in Fonts
pango_font_map_create_context, function in Fonts
pango_font_map_get_family, function in Fonts
pango_font_map_get_serial, function in Fonts
pango_font_map_list_families, function in Fonts
pango_font_map_load_font, function in Fonts
pango_font_map_load_fontset, function in Fonts
pango_font_metrics_get_approximate_char_width, function in Fonts
pango_font_metrics_get_approximate_digit_width, function in Fonts
pango_font_metrics_get_ascent, function in Fonts
pango_font_metrics_get_descent, function in Fonts
pango_font_metrics_get_height, function in Fonts
pango_font_metrics_get_strikethrough_position, function in Fonts
pango_font_metrics_get_strikethrough_thickness, function in Fonts
pango_font_metrics_get_underline_position, function in Fonts
pango_font_metrics_get_underline_thickness, function in Fonts
pango_font_metrics_ref, function in Fonts
pango_font_metrics_unref, function in Fonts
PangoFT2FontMap, struct in FreeType Fonts and Rendering
PangoFT2SubstituteFunc, user_function in FreeType Fonts and Rendering
pango_ft2_font_get_coverage, function in FreeType Fonts and Rendering
pango_ft2_font_get_face, function in FreeType Fonts and Rendering
pango_ft2_font_get_kerning, function in FreeType Fonts and Rendering
pango_ft2_font_map_create_context, function in FreeType Fonts and Rendering
pango_ft2_font_map_for_display, function in FreeType Fonts and Rendering
pango_ft2_font_map_new, function in FreeType Fonts and Rendering
pango_ft2_font_map_set_default_substitute, function in FreeType Fonts and Rendering
pango_ft2_font_map_set_resolution, function in FreeType Fonts and Rendering
pango_ft2_font_map_substitute_changed, function in FreeType Fonts and Rendering
pango_ft2_get_context, function in FreeType Fonts and Rendering
pango_ft2_get_unknown_glyph, function in FreeType Fonts and Rendering
pango_ft2_render, function in FreeType Fonts and Rendering
pango_ft2_render_layout, function in FreeType Fonts and Rendering
pango_ft2_render_layout_line, function in FreeType Fonts and Rendering
pango_ft2_render_layout_line_subpixel, function in FreeType Fonts and Rendering
pango_ft2_render_layout_subpixel, function in FreeType Fonts and Rendering
pango_ft2_render_transformed, function in FreeType Fonts and Rendering
pango_ft2_shutdown_display, function in FreeType Fonts and Rendering

G

pango_get_log_attrs, function in Text Processing
pango_get_mirror_char, function in Bidirectional Text
PANGO_GET_UNKNOWN_GLYPH, macro in Glyph Storage
PangoGlyph, typedef in Glyph Storage
PangoGlyphGeometry, struct in Glyph Storage
PangoGlyphInfo, struct in Glyph Storage
PangoGlyphItem, struct in Glyph Storage
PangoGlyphItemIter, struct in Glyph Storage
PangoGlyphString, struct in Glyph Storage
PangoGlyphUnit, typedef in Glyph Storage
PangoGlyphVisAttr, struct in Glyph Storage
PANGO_GLYPH_EMPTY, macro in Glyph Storage
PANGO_GLYPH_INVALID_INPUT, macro in Glyph Storage
pango_glyph_item_apply_attrs, function in Glyph Storage
pango_glyph_item_copy, function in Glyph Storage
pango_glyph_item_free, function in Glyph Storage
pango_glyph_item_get_logical_widths, function in Glyph Storage
pango_glyph_item_iter_copy, function in Glyph Storage
pango_glyph_item_iter_free, function in Glyph Storage
pango_glyph_item_iter_init_end, function in Glyph Storage
pango_glyph_item_iter_init_start, function in Glyph Storage
pango_glyph_item_iter_next_cluster, function in Glyph Storage
pango_glyph_item_iter_prev_cluster, function in Glyph Storage
pango_glyph_item_letter_space, function in Glyph Storage
pango_glyph_item_split, function in Glyph Storage
pango_glyph_string_copy, function in Glyph Storage
pango_glyph_string_extents, function in Glyph Storage
pango_glyph_string_extents_range, function in Glyph Storage
pango_glyph_string_free, function in Glyph Storage
pango_glyph_string_get_logical_widths, function in Glyph Storage
pango_glyph_string_get_width, function in Glyph Storage
pango_glyph_string_index_to_x, function in Glyph Storage
pango_glyph_string_new, function in Glyph Storage
pango_glyph_string_set_size, function in Glyph Storage
pango_glyph_string_x_to_index, function in Glyph Storage
PANGO_GLYPH_UNKNOWN_FLAG, macro in Glyph Storage
PangoGravity, enum in Vertical Text
PangoGravityHint, enum in Vertical Text
pango_gravity_get_for_matrix, function in Vertical Text
pango_gravity_get_for_script, function in Vertical Text
pango_gravity_get_for_script_and_width, function in Vertical Text
PANGO_GRAVITY_IS_IMPROPER, macro in Vertical Text
PANGO_GRAVITY_IS_VERTICAL, macro in Vertical Text
pango_gravity_to_rotation, function in Vertical Text

I

PangoIncludedModule, struct in Modules
pango_is_zero_width, function in Miscellaneous Utilities
PangoItem, struct in Text Processing
pango_itemize, function in Text Processing
pango_itemize_with_base_dir, function in Text Processing
pango_item_apply_attrs, function in Text Processing
pango_item_copy, function in Text Processing
pango_item_free, function in Text Processing
pango_item_new, function in Text Processing
pango_item_split, function in Text Processing

L

PangoLanguage, struct in Scripts and Languages
pango_language_from_string, function in Scripts and Languages
pango_language_get_default, function in Scripts and Languages
pango_language_get_preferred, function in Scripts and Languages
pango_language_get_sample_string, function in Scripts and Languages
pango_language_get_scripts, function in Scripts and Languages
pango_language_includes_script, function in Scripts and Languages
pango_language_matches, function in Scripts and Languages
pango_language_to_string, function in Scripts and Languages
PangoLayout, struct in Layout Objects
PangoLayoutIter, struct in Layout Objects
PangoLayoutLine, struct in Layout Objects
PangoLayoutRun, typedef in Layout Objects
pango_layout_context_changed, function in Layout Objects
pango_layout_copy, function in Layout Objects
pango_layout_get_alignment, function in Layout Objects
pango_layout_get_attributes, function in Layout Objects
pango_layout_get_auto_dir, function in Layout Objects
pango_layout_get_baseline, function in Layout Objects
pango_layout_get_character_count, function in Layout Objects
pango_layout_get_context, function in Layout Objects
pango_layout_get_cursor_pos, function in Layout Objects
pango_layout_get_direction, function in Layout Objects
pango_layout_get_ellipsize, function in Layout Objects
pango_layout_get_extents, function in Layout Objects
pango_layout_get_font_description, function in Layout Objects
pango_layout_get_height, function in Layout Objects
pango_layout_get_indent, function in Layout Objects
pango_layout_get_iter, function in Layout Objects
pango_layout_get_justify, function in Layout Objects
pango_layout_get_line, function in Layout Objects
pango_layout_get_lines, function in Layout Objects
pango_layout_get_lines_readonly, function in Layout Objects
pango_layout_get_line_count, function in Layout Objects
pango_layout_get_line_readonly, function in Layout Objects
pango_layout_get_line_spacing, function in Layout Objects
pango_layout_get_log_attrs, function in Layout Objects
pango_layout_get_log_attrs_readonly, function in Layout Objects
pango_layout_get_pixel_extents, function in Layout Objects
pango_layout_get_pixel_size, function in Layout Objects
pango_layout_get_serial, function in Layout Objects
pango_layout_get_single_paragraph_mode, function in Layout Objects
pango_layout_get_size, function in Layout Objects
pango_layout_get_spacing, function in Layout Objects
pango_layout_get_tabs, function in Layout Objects
pango_layout_get_text, function in Layout Objects
pango_layout_get_unknown_glyphs_count, function in Layout Objects
pango_layout_get_width, function in Layout Objects
pango_layout_get_wrap, function in Layout Objects
pango_layout_index_to_line_x, function in Layout Objects
pango_layout_index_to_pos, function in Layout Objects
pango_layout_is_ellipsized, function in Layout Objects
pango_layout_is_wrapped, function in Layout Objects
pango_layout_iter_at_last_line, function in Layout Objects
pango_layout_iter_copy, function in Layout Objects
pango_layout_iter_free, function in Layout Objects
pango_layout_iter_get_baseline, function in Layout Objects
pango_layout_iter_get_char_extents, function in Layout Objects
pango_layout_iter_get_cluster_extents, function in Layout Objects
pango_layout_iter_get_index, function in Layout Objects
pango_layout_iter_get_layout, function in Layout Objects
pango_layout_iter_get_layout_extents, function in Layout Objects
pango_layout_iter_get_line, function in Layout Objects
pango_layout_iter_get_line_extents, function in Layout Objects
pango_layout_iter_get_line_readonly, function in Layout Objects
pango_layout_iter_get_line_yrange, function in Layout Objects
pango_layout_iter_get_run, function in Layout Objects
pango_layout_iter_get_run_extents, function in Layout Objects
pango_layout_iter_get_run_readonly, function in Layout Objects
pango_layout_iter_next_char, function in Layout Objects
pango_layout_iter_next_cluster, function in Layout Objects
pango_layout_iter_next_line, function in Layout Objects
pango_layout_iter_next_run, function in Layout Objects
pango_layout_line_get_extents, function in Layout Objects
pango_layout_line_get_height, function in Layout Objects
pango_layout_line_get_pixel_extents, function in Layout Objects
pango_layout_line_get_x_ranges, function in Layout Objects
pango_layout_line_index_to_x, function in Layout Objects
pango_layout_line_ref, function in Layout Objects
pango_layout_line_unref, function in Layout Objects
pango_layout_line_x_to_index, function in Layout Objects
pango_layout_move_cursor_visually, function in Layout Objects
pango_layout_new, function in Layout Objects
pango_layout_set_alignment, function in Layout Objects
pango_layout_set_attributes, function in Layout Objects
pango_layout_set_auto_dir, function in Layout Objects
pango_layout_set_ellipsize, function in Layout Objects
pango_layout_set_font_description, function in Layout Objects
pango_layout_set_height, function in Layout Objects
pango_layout_set_indent, function in Layout Objects
pango_layout_set_justify, function in Layout Objects
pango_layout_set_line_spacing, function in Layout Objects
pango_layout_set_markup, function in Layout Objects
pango_layout_set_markup_with_accel, function in Layout Objects
pango_layout_set_single_paragraph_mode, function in Layout Objects
pango_layout_set_spacing, function in Layout Objects
pango_layout_set_tabs, function in Layout Objects
pango_layout_set_text, function in Layout Objects
pango_layout_set_width, function in Layout Objects
pango_layout_set_wrap, function in Layout Objects
pango_layout_xy_to_index, function in Layout Objects
PANGO_LBEARING, macro in Glyph Storage
pango_log2vis_get_embedding_levels, function in Miscellaneous Utilities
PangoLogAttr, struct in Text Processing

M

PangoMap, struct in Modules
PangoMapEntry, struct in Modules
pango_map_get_engine, function in Modules
pango_map_get_engines, function in Modules
pango_markup_parser_finish, function in Markup
pango_markup_parser_new, function in Markup
PangoMatrix, struct in Glyph Storage
pango_matrix_concat, function in Glyph Storage
pango_matrix_copy, function in Glyph Storage
pango_matrix_free, function in Glyph Storage
pango_matrix_get_font_scale_factor, function in Glyph Storage
pango_matrix_get_font_scale_factors, function in Glyph Storage
PANGO_MATRIX_INIT, macro in Glyph Storage
pango_matrix_rotate, function in Glyph Storage
pango_matrix_scale, function in Glyph Storage
pango_matrix_transform_distance, function in Glyph Storage
pango_matrix_transform_pixel_rectangle, function in Glyph Storage
pango_matrix_transform_point, function in Glyph Storage
pango_matrix_transform_rectangle, function in Glyph Storage
pango_matrix_translate, function in Glyph Storage
pango_module_register, function in Modules

O

PangoOTBuffer, struct in OpenType Font Handling
PangoOTFeatureMap, struct in OpenType Font Handling
PangoOTGlyph, struct in OpenType Font Handling
PangoOTInfo, struct in OpenType Font Handling
PangoOTRuleset, struct in OpenType Font Handling
PangoOTRulesetDescription, struct in OpenType Font Handling
PangoOTTableType, enum in OpenType Font Handling
PangoOTTag, typedef in OpenType Font Handling
PANGO_OT_ALL_GLYPHS, macro in OpenType Font Handling
pango_ot_buffer_add_glyph, function in OpenType Font Handling
pango_ot_buffer_clear, function in OpenType Font Handling
pango_ot_buffer_destroy, function in OpenType Font Handling
pango_ot_buffer_get_glyphs, function in OpenType Font Handling
pango_ot_buffer_new, function in OpenType Font Handling
pango_ot_buffer_output, function in OpenType Font Handling
pango_ot_buffer_set_rtl, function in OpenType Font Handling
pango_ot_buffer_set_zero_width_marks, function in OpenType Font Handling
PANGO_OT_DEFAULT_LANGUAGE, macro in OpenType Font Handling
pango_ot_info_find_feature, function in OpenType Font Handling
pango_ot_info_find_language, function in OpenType Font Handling
pango_ot_info_find_script, function in OpenType Font Handling
pango_ot_info_get, function in OpenType Font Handling
pango_ot_info_list_features, function in OpenType Font Handling
pango_ot_info_list_languages, function in OpenType Font Handling
pango_ot_info_list_scripts, function in OpenType Font Handling
PANGO_OT_NO_FEATURE, macro in OpenType Font Handling
PANGO_OT_NO_SCRIPT, macro in OpenType Font Handling
pango_ot_ruleset_add_feature, function in OpenType Font Handling
pango_ot_ruleset_description_copy, function in OpenType Font Handling
pango_ot_ruleset_description_equal, function in OpenType Font Handling
pango_ot_ruleset_description_free, function in OpenType Font Handling
pango_ot_ruleset_description_hash, function in OpenType Font Handling
pango_ot_ruleset_get_feature_count, function in OpenType Font Handling
pango_ot_ruleset_get_for_description, function in OpenType Font Handling
pango_ot_ruleset_maybe_add_feature, function in OpenType Font Handling
pango_ot_ruleset_maybe_add_features, function in OpenType Font Handling
pango_ot_ruleset_new, function in OpenType Font Handling
pango_ot_ruleset_new_for, function in OpenType Font Handling
pango_ot_ruleset_new_from_description, function in OpenType Font Handling
pango_ot_ruleset_position, function in OpenType Font Handling
pango_ot_ruleset_substitute, function in OpenType Font Handling
PANGO_OT_TAG_DEFAULT_LANGUAGE, macro in OpenType Font Handling
PANGO_OT_TAG_DEFAULT_SCRIPT, macro in OpenType Font Handling
pango_ot_tag_from_language, function in OpenType Font Handling
pango_ot_tag_from_script, function in OpenType Font Handling
PANGO_OT_TAG_MAKE, macro in OpenType Font Handling
PANGO_OT_TAG_MAKE_FROM_STRING, macro in OpenType Font Handling
pango_ot_tag_to_language, function in OpenType Font Handling
pango_ot_tag_to_script, function in OpenType Font Handling
PangoOverline, enum in Text Attributes

P

pango_parse_enum, function in Miscellaneous Utilities
pango_parse_markup, function in Markup
pango_parse_stretch, function in Miscellaneous Utilities
pango_parse_style, function in Miscellaneous Utilities
pango_parse_variant, function in Miscellaneous Utilities
pango_parse_weight, function in Miscellaneous Utilities
PANGO_PIXELS, macro in Glyph Storage
PANGO_PIXELS_CEIL, macro in Glyph Storage
PANGO_PIXELS_FLOOR, macro in Glyph Storage

Q

pango_quantize_line_geometry, function in Miscellaneous Utilities

R

PANGO_RBEARING, macro in Glyph Storage
pango_read_line, function in Miscellaneous Utilities
PangoRectangle, struct in Glyph Storage
PangoRenderer, struct in PangoRenderer
PangoRendererClass, struct in PangoRenderer
pango_renderer_activate, function in PangoRenderer
pango_renderer_deactivate, function in PangoRenderer
pango_renderer_draw_error_underline, function in PangoRenderer
pango_renderer_draw_glyph, function in PangoRenderer
pango_renderer_draw_glyphs, function in PangoRenderer
pango_renderer_draw_glyph_item, function in PangoRenderer
pango_renderer_draw_layout, function in PangoRenderer
pango_renderer_draw_layout_line, function in PangoRenderer
pango_renderer_draw_rectangle, function in PangoRenderer
pango_renderer_draw_trapezoid, function in PangoRenderer
pango_renderer_get_alpha, function in PangoRenderer
pango_renderer_get_color, function in PangoRenderer
pango_renderer_get_layout, function in PangoRenderer
pango_renderer_get_layout_line, function in PangoRenderer
pango_renderer_get_matrix, function in PangoRenderer
pango_renderer_part_changed, function in PangoRenderer
pango_renderer_set_alpha, function in PangoRenderer
pango_renderer_set_color, function in PangoRenderer
pango_renderer_set_matrix, function in PangoRenderer
PangoRenderPart, enum in PangoRenderer
pango_reorder_items, function in Text Processing

S

PANGO_SCALE, macro in Glyph Storage
PANGO_SCALE_LARGE, macro in Text Attributes
PANGO_SCALE_MEDIUM, macro in Text Attributes
PANGO_SCALE_SMALL, macro in Text Attributes
PANGO_SCALE_XX_LARGE, macro in Text Attributes
PANGO_SCALE_XX_SMALL, macro in Text Attributes
PANGO_SCALE_X_LARGE, macro in Text Attributes
PANGO_SCALE_X_SMALL, macro in Text Attributes
pango_scan_int, function in Miscellaneous Utilities
pango_scan_string, function in Miscellaneous Utilities
pango_scan_word, function in Miscellaneous Utilities
PangoScript, enum in Scripts and Languages
PangoScriptIter, struct in Scripts and Languages
script_engine_create, function in Engines
script_engine_exit, function in Engines
script_engine_init, function in Engines
script_engine_list, function in Engines
pango_script_for_unichar, function in Scripts and Languages
pango_script_get_sample_language, function in Scripts and Languages
pango_script_iter_free, function in Scripts and Languages
pango_script_iter_get_range, function in Scripts and Languages
pango_script_iter_new, function in Scripts and Languages
pango_script_iter_next, function in Scripts and Languages
pango_shape, function in Text Processing
PangoShapeFlags, enum in Text Processing
pango_shape_full, function in Text Processing
pango_shape_with_flags, function in Text Processing
PangoShowFlags, enum in Text Attributes
pango_skip_space, function in Miscellaneous Utilities
pango_split_file_list, function in Miscellaneous Utilities
PangoStretch, enum in Fonts
PangoStyle, enum in Fonts

T

PangoTabAlign, enum in Tab Stops
PangoTabArray, struct in Tab Stops
pango_tab_array_copy, function in Tab Stops
pango_tab_array_free, function in Tab Stops
pango_tab_array_get_positions_in_pixels, function in Tab Stops
pango_tab_array_get_size, function in Tab Stops
pango_tab_array_get_tab, function in Tab Stops
pango_tab_array_get_tabs, function in Tab Stops
pango_tab_array_new, function in Tab Stops
pango_tab_array_new_with_positions, function in Tab Stops
pango_tab_array_resize, function in Tab Stops
pango_tab_array_set_tab, function in Tab Stops
pango_tailor_break, function in Text Processing
pango_trim_string, function in Miscellaneous Utilities
PANGO_TYPE_COVERAGE_LEVEL, macro in Coverage Maps
PANGO_TYPE_GLYPH_STRING, macro in Glyph Storage
PANGO_TYPE_RENDER_PART, macro in PangoRenderer

U

PangoUnderline, enum in Text Attributes
pango_unichar_direction, function in Bidirectional Text
pango_units_from_double, function in Glyph Storage
PANGO_UNITS_ROUND, macro in Glyph Storage
pango_units_to_double, function in Glyph Storage

V

PangoVariant, enum in Fonts
PANGO_VERSION, macro in Version Checking
pango_version, function in Version Checking
PANGO_VERSION_1_10, macro in Version Checking
PANGO_VERSION_1_12, macro in Version Checking
PANGO_VERSION_1_14, macro in Version Checking
PANGO_VERSION_1_16, macro in Version Checking
PANGO_VERSION_1_18, macro in Version Checking
PANGO_VERSION_1_2, macro in Version Checking
PANGO_VERSION_1_20, macro in Version Checking
PANGO_VERSION_1_22, macro in Version Checking
PANGO_VERSION_1_24, macro in Version Checking
PANGO_VERSION_1_26, macro in Version Checking
PANGO_VERSION_1_28, macro in Version Checking
PANGO_VERSION_1_30, macro in Version Checking
PANGO_VERSION_1_32, macro in Version Checking
PANGO_VERSION_1_34, macro in Version Checking
PANGO_VERSION_1_36, macro in Version Checking
PANGO_VERSION_1_38, macro in Version Checking
PANGO_VERSION_1_4, macro in Version Checking
PANGO_VERSION_1_40, macro in Version Checking
PANGO_VERSION_1_42, macro in Version Checking
PANGO_VERSION_1_44, macro in Version Checking
PANGO_VERSION_1_6, macro in Version Checking
PANGO_VERSION_1_8, macro in Version Checking
PANGO_VERSION_CHECK, macro in Version Checking
pango_version_check, function in Version Checking
PANGO_VERSION_ENCODE, macro in Version Checking
PANGO_VERSION_MAJOR, macro in Version Checking
PANGO_VERSION_MAX_ALLOWED, macro in Version Checking
PANGO_VERSION_MICRO, macro in Version Checking
PANGO_VERSION_MINOR, macro in Version Checking
PANGO_VERSION_MIN_REQUIRED, macro in Version Checking
PANGO_VERSION_STRING, macro in Version Checking
pango_version_string, function in Version Checking

W

PangoWeight, enum in Fonts
PangoWin32FontCache, struct in Win32 Fonts and Rendering
pango_win32_font_cache_free, function in Win32 Fonts and Rendering
pango_win32_font_cache_load, function in Win32 Fonts and Rendering
pango_win32_font_cache_loadw, function in Win32 Fonts and Rendering
pango_win32_font_cache_new, function in Win32 Fonts and Rendering
pango_win32_font_cache_unload, function in Win32 Fonts and Rendering
pango_win32_font_description_from_logfont, function in Win32 Fonts and Rendering
pango_win32_font_description_from_logfontw, function in Win32 Fonts and Rendering
pango_win32_font_done_font, function in Win32 Fonts and Rendering
pango_win32_font_get_glyph_index, function in Win32 Fonts and Rendering
pango_win32_font_get_metrics_factor, function in Win32 Fonts and Rendering
pango_win32_font_logfont, function in Win32 Fonts and Rendering
pango_win32_font_logfontw, function in Win32 Fonts and Rendering
pango_win32_font_map_for_display, function in Win32 Fonts and Rendering
pango_win32_font_map_get_font_cache, function in Win32 Fonts and Rendering
pango_win32_font_select_font, function in Win32 Fonts and Rendering
pango_win32_get_context, function in Win32 Fonts and Rendering
pango_win32_get_dc, function in Win32 Fonts and Rendering
pango_win32_get_debug_flag, function in Win32 Fonts and Rendering
pango_win32_get_unknown_glyph, function in Win32 Fonts and Rendering
pango_win32_render, function in Win32 Fonts and Rendering
pango_win32_render_layout, function in Win32 Fonts and Rendering
pango_win32_render_layout_line, function in Win32 Fonts and Rendering
pango_win32_render_transformed, function in Win32 Fonts and Rendering
pango_win32_shutdown_display, function in Win32 Fonts and Rendering
PangoWrapMode, enum in Layout Objects

X

PangoXftFont, struct in Xft Fonts and Rendering
PangoXftFontMap, struct in Xft Fonts and Rendering
PangoXftRenderer, struct in Xft Fonts and Rendering
PangoXftRenderer:display, object property in Xft Fonts and Rendering
PangoXftRenderer:screen, object property in Xft Fonts and Rendering
PangoXftRendererClass, struct in Xft Fonts and Rendering
PangoXftSubstituteFunc, user_function in Xft Fonts and Rendering
pango_xft_font_get_display, function in Xft Fonts and Rendering
pango_xft_font_get_font, function in Xft Fonts and Rendering
pango_xft_font_get_glyph, function in Xft Fonts and Rendering
pango_xft_font_get_unknown_glyph, function in Xft Fonts and Rendering
pango_xft_font_has_char, function in Xft Fonts and Rendering
pango_xft_font_lock_face, function in Xft Fonts and Rendering
pango_xft_font_unlock_face, function in Xft Fonts and Rendering
pango_xft_get_context, function in Xft Fonts and Rendering
pango_xft_get_font_map, function in Xft Fonts and Rendering
pango_xft_picture_render, function in Xft Fonts and Rendering
pango_xft_render, function in Xft Fonts and Rendering
pango_xft_renderer_new, function in Xft Fonts and Rendering
pango_xft_renderer_set_default_color, function in Xft Fonts and Rendering
pango_xft_renderer_set_draw, function in Xft Fonts and Rendering
pango_xft_render_layout, function in Xft Fonts and Rendering
pango_xft_render_layout_line, function in Xft Fonts and Rendering
pango_xft_render_transformed, function in Xft Fonts and Rendering
pango_xft_set_default_substitute, function in Xft Fonts and Rendering
pango_xft_shutdown_display, function in Xft Fonts and Rendering
pango_xft_substitute_changed, function in Xft Fonts and Rendering
Generated by GTK-Doc V1.33.0
docs/html/deprecated.html0000664000175000017500000000502614002404370015565 0ustar mclasenmclasen Deprecated APIs: Pango Reference Manual

Deprecated APIs

OpenType Font Handling — Obtaining information from OpenType tables
Engines — Language-specific and rendering-system-specific processing
PangoEngineLang — Rendering-system independent script engines
PangoEngineShape — Rendering-system dependent script engines
Modules — Support for loadable modules
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docs/html/pango-CoreText-Fonts.html0000664000175000017500000001050414002404370017410 0ustar mclasenmclasen CoreText Fonts and Rendering: Pango Reference Manual

CoreText Fonts and Rendering

CoreText Fonts and Rendering — Font handling and rendering on OS X

Functions

CTFontRef pango_core_text_font_get_ctfont ()

Description

The macros and functions in this section are used to access fonts natively on OS X using the CoreText text rendering subsystem.

Functions

pango_core_text_font_get_ctfont ()

CTFontRef
pango_core_text_font_get_ctfont (PangoCoreTextFont *font);

Returns the CTFontRef of a font.

Parameters

font

A PangoCoreTextFont

  

Returns

the CTFontRef associated to font .

Since: 1.24

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docs/html/api-index-1-6.html0000664000175000017500000002431414002404370015645 0ustar mclasenmclasen Index of new symbols in 1.6: Pango Reference Manual

Index of new symbols in 1.6

A

pango_attr_letter_spacing_new, function in Text Attributes

C

pango_context_get_font_map, function in Contexts
pango_context_get_matrix, function in Contexts
pango_context_set_matrix, function in Contexts

F

PangoFcDecoder, struct in PangoFcDecoder
PangoFcDecoderClass, struct in PangoFcDecoder
pango_fc_decoder_get_charset, function in PangoFcDecoder
pango_fc_decoder_get_glyph, function in PangoFcDecoder
pango_fc_font_map_add_decoder_find_func, function in PangoFcFontMap
pango_font_metrics_get_strikethrough_position, function in Fonts
pango_font_metrics_get_strikethrough_thickness, function in Fonts
pango_font_metrics_get_underline_position, function in Fonts
pango_font_metrics_get_underline_thickness, function in Fonts
pango_ft2_render_layout_line_subpixel, function in FreeType Fonts and Rendering
pango_ft2_render_layout_subpixel, function in FreeType Fonts and Rendering
pango_ft2_render_transformed, function in FreeType Fonts and Rendering

G

pango_glyph_item_free, function in Glyph Storage
pango_glyph_item_letter_space, function in Glyph Storage

L

pango_layout_get_ellipsize, function in Layout Objects
pango_layout_set_ellipsize, function in Layout Objects

M

PangoMatrix, struct in Glyph Storage
pango_matrix_concat, function in Glyph Storage
pango_matrix_copy, function in Glyph Storage
pango_matrix_free, function in Glyph Storage
PANGO_MATRIX_INIT, macro in Glyph Storage
pango_matrix_rotate, function in Glyph Storage
pango_matrix_scale, function in Glyph Storage
pango_matrix_translate, function in Glyph Storage

O

pango_ot_buffer_set_zero_width_marks, function in OpenType Font Handling
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docs/html/api-index-1-8.html0000664000175000017500000002552414002404370015653 0ustar mclasenmclasen Index of new symbols in 1.8: Pango Reference Manual

Index of new symbols in 1.8

A

pango_attr_shape_new_with_data, function in Text Attributes
pango_attr_size_new_absolute, function in Text Attributes
pango_attr_strikethrough_color_new, function in Text Attributes
pango_attr_underline_color_new, function in Text Attributes

F

pango_font_description_get_size_is_absolute, function in Fonts
pango_font_description_set_absolute_size, function in Fonts

L

pango_layout_get_font_description, function in Layout Objects

R

PangoRenderer, struct in PangoRenderer
PangoRendererClass, struct in PangoRenderer
pango_renderer_activate, function in PangoRenderer
pango_renderer_deactivate, function in PangoRenderer
pango_renderer_draw_error_underline, function in PangoRenderer
pango_renderer_draw_glyph, function in PangoRenderer
pango_renderer_draw_glyphs, function in PangoRenderer
pango_renderer_draw_layout, function in PangoRenderer
pango_renderer_draw_layout_line, function in PangoRenderer
pango_renderer_draw_rectangle, function in PangoRenderer
pango_renderer_draw_trapezoid, function in PangoRenderer
pango_renderer_get_color, function in PangoRenderer
pango_renderer_get_matrix, function in PangoRenderer
pango_renderer_part_changed, function in PangoRenderer
pango_renderer_set_color, function in PangoRenderer
pango_renderer_set_matrix, function in PangoRenderer
PangoRenderPart, enum in PangoRenderer

X

PangoXftRenderer, struct in Xft Fonts and Rendering
PangoXftRendererClass, struct in Xft Fonts and Rendering
pango_xft_renderer_new, function in Xft Fonts and Rendering
pango_xft_renderer_set_default_color, function in Xft Fonts and Rendering
pango_xft_renderer_set_draw, function in Xft Fonts and Rendering
pango_xft_render_layout, function in Xft Fonts and Rendering
pango_xft_render_layout_line, function in Xft Fonts and Rendering
pango_xft_render_transformed, function in Xft Fonts and Rendering
Generated by GTK-Doc V1.33.0
docs/html/lowlevel.html0000664000175000017500000000625014002404370015316 0ustar mclasenmclasen Low Level Functionality: Pango Reference Manual

Low Level Functionality

Contexts — Global context object
Tab Stops — Structures for storing tab stops
Coverage Maps — Unicode character range coverage storage
PangoRenderer — Rendering driver base class
PangoFcFontMap — Base fontmap class for Fontconfig-based backends
PangoFcFont — Base font class for Fontconfig-based backends
PangoFcDecoder — Custom font encoding handling
Miscellaneous Utilities — Various convenience and utility functions
Version Checking — Tools for checking Pango version at compile- and run-time.
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-18.html0000664000175000017500000002475114002404370015735 0ustar mclasenmclasen Index of new symbols in 1.18: Pango Reference Manual

Index of new symbols in 1.18

C

PangoCairoFont, struct in Cairo Rendering
pango_cairo_context_get_shape_renderer, function in Cairo Rendering
pango_cairo_context_set_shape_renderer, function in Cairo Rendering
pango_cairo_font_get_scaled_font, function in Cairo Rendering
pango_cairo_font_map_get_font_type, function in Cairo Rendering
pango_cairo_font_map_new_for_font_type, function in Cairo Rendering

F

pango_font_face_is_synthesized, function in Fonts

O

PangoOTFeatureMap, struct in OpenType Font Handling
PangoOTRulesetDescription, struct in OpenType Font Handling
PANGO_OT_NO_FEATURE, macro in OpenType Font Handling
PANGO_OT_NO_SCRIPT, macro in OpenType Font Handling
pango_ot_ruleset_description_copy, function in OpenType Font Handling
pango_ot_ruleset_description_equal, function in OpenType Font Handling
pango_ot_ruleset_description_free, function in OpenType Font Handling
pango_ot_ruleset_description_hash, function in OpenType Font Handling
pango_ot_ruleset_get_feature_count, function in OpenType Font Handling
pango_ot_ruleset_get_for_description, function in OpenType Font Handling
pango_ot_ruleset_maybe_add_feature, function in OpenType Font Handling
pango_ot_ruleset_maybe_add_features, function in OpenType Font Handling
pango_ot_ruleset_new_for, function in OpenType Font Handling
pango_ot_ruleset_new_from_description, function in OpenType Font Handling
PANGO_OT_TAG_DEFAULT_LANGUAGE, macro in OpenType Font Handling
PANGO_OT_TAG_DEFAULT_SCRIPT, macro in OpenType Font Handling
pango_ot_tag_from_language, function in OpenType Font Handling
pango_ot_tag_from_script, function in OpenType Font Handling
pango_ot_tag_to_language, function in OpenType Font Handling
pango_ot_tag_to_script, function in OpenType Font Handling

U

PANGO_UNITS_ROUND, macro in Glyph Storage
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docs/html/api-index-1-2.html0000664000175000017500000002027314002404370015641 0ustar mclasenmclasen Index of new symbols in 1.2: Pango Reference Manual

Index of new symbols in 1.2

A

pango_attr_iterator_get_attrs, function in Text Attributes
pango_attr_list_filter, function in Text Attributes

F

pango_ft2_font_map_create_context, function in FreeType Fonts and Rendering
pango_ft2_font_map_new, function in FreeType Fonts and Rendering
pango_ft2_font_map_set_default_substitute, function in FreeType Fonts and Rendering
pango_ft2_font_map_set_resolution, function in FreeType Fonts and Rendering
pango_ft2_font_map_substitute_changed, function in FreeType Fonts and Rendering

G

pango_glyph_item_apply_attrs, function in Glyph Storage
pango_glyph_item_split, function in Glyph Storage

O

pango_ot_info_get, function in OpenType Font Handling

W

pango_win32_get_debug_flag, function in Win32 Fonts and Rendering

X

pango_xft_font_get_glyph, function in Xft Fonts and Rendering
pango_xft_font_has_char, function in Xft Fonts and Rendering
pango_xft_font_lock_face, function in Xft Fonts and Rendering
pango_xft_font_unlock_face, function in Xft Fonts and Rendering
pango_xft_get_font_map, function in Xft Fonts and Rendering
pango_xft_set_default_substitute, function in Xft Fonts and Rendering
pango_xft_shutdown_display, function in Xft Fonts and Rendering
pango_xft_substitute_changed, function in Xft Fonts and Rendering
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-22.html0000664000175000017500000001624114002404370015723 0ustar mclasenmclasen Index of new symbols in 1.22: Pango Reference Manual

Index of new symbols in 1.22

A

pango_attr_type_get_name, function in Text Attributes

B

PangoBidiType, enum in Bidirectional Text
pango_bidi_type_for_unichar, function in Bidirectional Text

C

pango_cairo_create_context, function in Cairo Rendering
pango_cairo_font_map_set_default, function in Cairo Rendering
pango_cairo_show_glyph_item, function in Cairo Rendering

F

pango_font_map_create_context, function in Fonts

G

PangoGlyphItemIter, struct in Glyph Storage
pango_glyph_item_iter_copy, function in Glyph Storage
pango_glyph_item_iter_free, function in Glyph Storage
pango_glyph_item_iter_init_end, function in Glyph Storage
pango_glyph_item_iter_init_start, function in Glyph Storage
pango_glyph_item_iter_next_cluster, function in Glyph Storage
pango_glyph_item_iter_prev_cluster, function in Glyph Storage

L

pango_language_get_scripts, function in Scripts and Languages
pango_layout_get_baseline, function in Layout Objects

R

pango_renderer_draw_glyph_item, function in PangoRenderer
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docs/html/api-index-1-24.html0000664000175000017500000000616114002404370015725 0ustar mclasenmclasen Index of new symbols in 1.24: Pango Reference Manual

Index of new symbols in 1.24

A

PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING, macro in Text Attributes
PANGO_ATTR_INDEX_TO_TEXT_END, macro in Text Attributes

C

pango_core_text_font_get_ctfont, function in CoreText Fonts

F

PANGO_FC_PRGNAME, macro in PangoFcFontMap
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docs/html/api-index-1-26.html0000664000175000017500000000535314002404370015731 0ustar mclasenmclasen Index of new symbols in 1.26: Pango Reference Manual

Index of new symbols in 1.26

F

pango_fc_font_map_find_decoder, function in PangoFcFontMap

G

pango_glyph_item_get_logical_widths, function in Glyph Storage
pango_gravity_get_for_script_and_width, function in Vertical Text
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-30.html0000664000175000017500000000450514002404370015722 0ustar mclasenmclasen Index of new symbols in 1.30: Pango Reference Manual

Index of new symbols in 1.30

L

pango_layout_get_character_count, function in Layout Objects
pango_layout_get_log_attrs_readonly, function in Layout Objects
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docs/html/api-index-1-31-0.html0000664000175000017500000000431514002404370016057 0ustar mclasenmclasen Index of new symbols in 1.31: Pango Reference Manual

Index of new symbols in 1.31

M

pango_markup_parser_finish, function in Markup
pango_markup_parser_new, function in Markup
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Index of new symbols in 1.32

G

PANGO_GRAVITY_IS_IMPROPER, macro in Vertical Text

S

pango_shape_full, function in Text Processing
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-34.html0000664000175000017500000000432014002404370015721 0ustar mclasenmclasen Index of new symbols in 1.34: Pango Reference Manual

Index of new symbols in 1.34

F

PANGO_FC_FONT_FEATURES, macro in PangoFcFontMap
pango_font_map_changed, function in Fonts
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-38.html0000664000175000017500000001150414002404370015727 0ustar mclasenmclasen Index of new symbols in 1.38: Pango Reference Manual

Index of new symbols in 1.38

A

PangoAttrFontFeatures, struct in Text Attributes
pango_attr_background_alpha_new, function in Text Attributes
pango_attr_font_features_new, function in Text Attributes
pango_attr_foreground_alpha_new, function in Text Attributes

F

pango_fc_font_map_config_changed, function in PangoFcFontMap
pango_fc_font_map_get_config, function in PangoFcFontMap
pango_fc_font_map_set_config, function in PangoFcFontMap

M

pango_matrix_get_font_scale_factors, function in Glyph Storage

R

pango_renderer_get_alpha, function in PangoRenderer
pango_renderer_set_alpha, function in PangoRenderer
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docs/html/api-index-1-4.html0000664000175000017500000003101314002404370015635 0ustar mclasenmclasen Index of new symbols in 1.4: Pango Reference Manual

Index of new symbols in 1.4

A

pango_attr_fallback_new, function in Text Attributes

F

pango_fc_font_description_from_pattern, function in PangoFcFontMap
pango_fc_font_get_glyph, function in PangoFcFont
pango_fc_font_get_unknown_glyph, function in PangoFcFont
pango_fc_font_has_char, function in PangoFcFont
pango_fc_font_kern_glyphs, function in PangoFcFont
pango_fc_font_lock_face, function in PangoFcFont
pango_fc_font_map_cache_clear, function in PangoFcFontMap
pango_fc_font_map_create_context, function in PangoFcFontMap
pango_fc_font_map_shutdown, function in PangoFcFontMap
pango_fc_font_unlock_face, function in PangoFcFont
pango_find_base_dir, function in Bidirectional Text
PangoFontsetForeachFunc, user_function in Fonts
pango_fontset_foreach, function in Fonts
pango_font_face_list_sizes, function in Fonts
pango_font_family_is_monospace, function in Fonts

I

pango_itemize_with_base_dir, function in Text Processing

L

pango_language_includes_script, function in Scripts and Languages
pango_layout_get_auto_dir, function in Layout Objects
pango_layout_set_auto_dir, function in Layout Objects
pango_log2vis_get_embedding_levels, function in Miscellaneous Utilities

M

pango_map_get_engines, function in Modules

O

pango_ot_buffer_add_glyph, function in OpenType Font Handling
pango_ot_buffer_clear, function in OpenType Font Handling
pango_ot_buffer_destroy, function in OpenType Font Handling
pango_ot_buffer_get_glyphs, function in OpenType Font Handling
pango_ot_buffer_new, function in OpenType Font Handling
pango_ot_buffer_output, function in OpenType Font Handling
pango_ot_buffer_set_rtl, function in OpenType Font Handling
pango_ot_ruleset_position, function in OpenType Font Handling
pango_ot_ruleset_substitute, function in OpenType Font Handling

S

pango_script_for_unichar, function in Scripts and Languages
pango_script_get_sample_language, function in Scripts and Languages
pango_script_iter_free, function in Scripts and Languages
pango_script_iter_get_range, function in Scripts and Languages
pango_script_iter_new, function in Scripts and Languages
pango_script_iter_next, function in Scripts and Languages
Generated by GTK-Doc V1.33.0
docs/html/api-index-1-42.html0000664000175000017500000002064314002404370015726 0ustar mclasenmclasen Index of new symbols in 1.42: Pango Reference Manual

Index of new symbols in 1.42

F

pango_font_description_get_variations, function in Fonts
pango_font_description_set_variations, function in Fonts
pango_font_description_set_variations_static, function in Fonts

V

PANGO_VERSION_1_10, macro in Version Checking
PANGO_VERSION_1_12, macro in Version Checking
PANGO_VERSION_1_14, macro in Version Checking
PANGO_VERSION_1_16, macro in Version Checking
PANGO_VERSION_1_18, macro in Version Checking
PANGO_VERSION_1_2, macro in Version Checking
PANGO_VERSION_1_20, macro in Version Checking
PANGO_VERSION_1_22, macro in Version Checking
PANGO_VERSION_1_24, macro in Version Checking
PANGO_VERSION_1_26, macro in Version Checking
PANGO_VERSION_1_28, macro in Version Checking
PANGO_VERSION_1_30, macro in Version Checking
PANGO_VERSION_1_32, macro in Version Checking
PANGO_VERSION_1_34, macro in Version Checking
PANGO_VERSION_1_36, macro in Version Checking
PANGO_VERSION_1_38, macro in Version Checking
PANGO_VERSION_1_4, macro in Version Checking
PANGO_VERSION_1_40, macro in Version Checking
PANGO_VERSION_1_42, macro in Version Checking
PANGO_VERSION_1_6, macro in Version Checking
PANGO_VERSION_1_8, macro in Version Checking
PANGO_VERSION_MAX_ALLOWED, macro in Version Checking
PANGO_VERSION_MIN_REQUIRED, macro in Version Checking
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docs/html/api-index-1-44.html0000664000175000017500000001755114002404370015734 0ustar mclasenmclasen Index of new symbols in 1.44: Pango Reference Manual

Index of new symbols in 1.44

A

PANGO_ANALYSIS_FLAG_NEED_HYPHEN, macro in Text Processing
pango_attr_allow_breaks_new, function in Text Attributes
pango_attr_insert_hyphens_new, function in Text Attributes
pango_attr_list_get_attributes, function in Text Attributes
pango_attr_list_update, function in Text Attributes
pango_attr_show_new, function in Text Attributes

C

pango_context_get_round_glyph_positions, function in Contexts
pango_context_set_round_glyph_positions, function in Contexts

F

pango_font_family_is_variable, function in Fonts
pango_font_get_features, function in Fonts
pango_font_get_hb_font, function in Fonts
pango_font_has_char, function in Fonts
pango_font_metrics_get_height, function in Fonts

I

pango_item_apply_attrs, function in Text Processing

L

pango_layout_get_line_spacing, function in Layout Objects
pango_layout_line_get_height, function in Layout Objects
pango_layout_set_line_spacing, function in Layout Objects

S

pango_shape_with_flags, function in Text Processing

T

pango_tailor_break, function in Text Processing

V

PANGO_VERSION_1_44, macro in Version Checking
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Index of new symbols in 1.46

A

pango_attr_list_equal, function in Text Attributes
pango_attr_overline_color_new, function in Text Attributes
pango_attr_overline_new, function in Text Attributes

C

pango_color_parse_with_alpha, function in Text Attributes

F

pango_font_face_get_family, function in Fonts
pango_font_family_get_face, function in Fonts
pango_font_get_face, function in Fonts
pango_font_map_get_family, function in Fonts

L

pango_layout_get_direction, function in Layout Objects

O

PangoOverline, enum in Text Attributes
Generated by GTK-Doc V1.33.0
docs/html/index.html0000664000175000017500000002211514002404370014572 0ustar mclasenmclasen Pango Reference Manual: Pango Reference Manual

for Pango 1.48.1 . Online at https://developer.gnome.org/pango/

Internationalized text layout and rendering
Basic Pango Interfaces
Rendering — Functions to run the rendering pipeline
Fonts — Structures representing abstract fonts
Glyphs — Structures for storing information about glyphs
Attributes — Font and other attributes for annotating text
Markup — Simple markup language for text with attributes
Layout Objects — High-level layout driver objects
Scripts and Languages — Identifying writing systems and languages
Bidirectional Text — Types and functions for bidirectional text
Vertical Text — Laying text out in vertical directions
Rendering with Pango
Cairo Fonts and Rendering — Font handling and rendering with Cairo
Win32 Fonts and Rendering — Font handling and rendering on Windows
CoreText Fonts and Rendering — Font handling and rendering on OS X
FreeType Fonts and Rendering — Font handling and rendering with FreeType
Xft Fonts and Rendering — Font handling and rendering with the Xft backend
Low Level Functionality
Contexts — Global context object
Tab Stops — Structures for storing tab stops
Coverage Maps — Unicode character range coverage storage
PangoRenderer — Rendering driver base class
PangoFcFontMap — Base fontmap class for Fontconfig-based backends
PangoFcFont — Base font class for Fontconfig-based backends
PangoFcDecoder — Custom font encoding handling
Miscellaneous Utilities — Various convenience and utility functions
Version Checking — Tools for checking Pango version at compile- and run-time.
Deprecated APIs
OpenType Font Handling — Obtaining information from OpenType tables
Engines — Language-specific and rendering-system-specific processing
PangoEngineLang — Rendering-system independent script engines
PangoEngineShape — Rendering-system dependent script engines
Modules — Support for loadable modules
Object Hierarchy
Annotation Glossary
Index of all symbols
Index of deprecated symbols
Index of new symbols in 1.2
Index of new symbols in 1.4
Index of new symbols in 1.6
Index of new symbols in 1.8
Index of new symbols in 1.10
Index of new symbols in 1.12
Index of new symbols in 1.14
Index of new symbols in 1.16
Index of new symbols in 1.18
Index of new symbols in 1.20
Index of new symbols in 1.22
Index of new symbols in 1.24
Index of new symbols in 1.26
Index of new symbols in 1.30
Index of new symbols in 1.31
Index of new symbols in 1.32
Index of new symbols in 1.32.4
Index of new symbols in 1.34
Index of new symbols in 1.38
Index of new symbols in 1.42
Index of new symbols in 1.44
Index of new symbols in 1.46
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docs/html/pango-Bidirectional-Text.html0000664000175000017500000006024014002404370020260 0ustar mclasenmclasen Bidirectional Text: Pango Reference Manual

Bidirectional Text

Bidirectional Text — Types and functions for bidirectional text

Functions

PangoDirection pango_unichar_direction ()
PangoDirection pango_find_base_dir ()
gboolean pango_get_mirror_char ()
PangoBidiType pango_bidi_type_for_unichar ()

Types and Values

enum PangoDirection
enum PangoBidiType

Object Hierarchy

    GEnum
    ├── PangoBidiType
    ╰── PangoDirection

Description

Pango supports bidirectional text (like Arabic and Hebrew) automatically. Some applications however, need some help to correctly handle bidirectional text.

The PangoDirection type can be used with pango_context_set_base_dir() to instruct Pango about direction of text, though in most cases Pango detects that correctly and automatically. The rest of the facilities in this section are used internally by Pango already, and are provided to help applications that need more direct control over bidirectional setting of text.

Functions

pango_unichar_direction ()

PangoDirection
pango_unichar_direction (gunichar ch);

pango_unichar_direction is deprecated and should not be used in newly-written code.

Determines the inherent direction of a character; either PANGO_DIRECTION_LTR, PANGO_DIRECTION_RTL, or PANGO_DIRECTION_NEUTRAL.

This function is useful to categorize characters into left-to-right letters, right-to-left letters, and everything else. If full Unicode bidirectional type of a character is needed, pango_bidi_type_for_unichar() can be used instead.

Parameters

ch

a Unicode character

  

Returns

the direction of the character.

pango_find_base_dir ()

PangoDirection
pango_find_base_dir (const gchar *text,
                     gint length);

pango_find_base_dir is deprecated and should not be used in newly-written code.

Searches a string the first character that has a strong direction, according to the Unicode bidirectional algorithm.

Parameters

text

the text to process. Must be valid UTF-8

  

length

length of text in bytes (may be -1 if text is nul-terminated)

  

Returns

The direction corresponding to the first strong character. If no such character is found, then PANGO_DIRECTION_NEUTRAL is returned.

Since: 1.4

pango_get_mirror_char ()

gboolean
pango_get_mirror_char (gunichar ch,
                       gunichar *mirrored_ch);

pango_get_mirror_char is deprecated and should not be used in newly-written code.

If ch has the Unicode mirrored property and there is another Unicode character that typically has a glyph that is the mirror image of ch 's glyph, puts that character in the address pointed to by mirrored_ch .

Use g_unichar_get_mirror_char() instead; the docs for that function provide full details.

Parameters

ch

a Unicode character

  

mirrored_ch

location to store the mirrored character

  

Returns

TRUE if ch has a mirrored character and mirrored_ch is filled in, FALSE otherwise

pango_bidi_type_for_unichar ()

PangoBidiType
pango_bidi_type_for_unichar (gunichar ch);

pango_bidi_type_for_unichar is deprecated and should not be used in newly-written code.

Determines the normative bidirectional character type of a character, as specified in the Unicode Character Database.

A simplified version of this function is available as pango_unichar_direction().

Parameters

ch

a Unicode character

  

Returns

the bidirectional character type, as used in the Unicode bidirectional algorithm.

Since: 1.22

Types and Values

enum PangoDirection

The PangoDirection type represents a direction in the Unicode bidirectional algorithm; not every value in this enumeration makes sense for every usage of PangoDirection; for example, the return value of pango_unichar_direction() and pango_find_base_dir() cannot be PANGO_DIRECTION_WEAK_LTR or PANGO_DIRECTION_WEAK_RTL, since every character is either neutral or has a strong direction; on the other hand PANGO_DIRECTION_NEUTRAL doesn't make sense to pass to pango_itemize_with_base_dir().

The PANGO_DIRECTION_TTB_LTR, PANGO_DIRECTION_TTB_RTL values come from an earlier interpretation of this enumeration as the writing direction of a block of text and are no longer used; See PangoGravity for how vertical text is handled in Pango.

If you are interested in text direction, you should really use fribidi directly. PangoDirection is only retained because it is used in some public apis.

Members

PANGO_DIRECTION_LTR

A strong left-to-right direction

  

PANGO_DIRECTION_RTL

A strong right-to-left direction

  

PANGO_DIRECTION_TTB_LTR

Deprecated value; treated the same as PANGO_DIRECTION_RTL.

  

PANGO_DIRECTION_TTB_RTL

Deprecated value; treated the same as PANGO_DIRECTION_LTR

  

PANGO_DIRECTION_WEAK_LTR

A weak left-to-right direction

  

PANGO_DIRECTION_WEAK_RTL

A weak right-to-left direction

  

PANGO_DIRECTION_NEUTRAL

No direction specified

  

enum PangoBidiType

PangoBidiType has been deprecated since version 1.44 and should not be used in newly-written code.

Use fribidi for this information

The PangoBidiType type represents the bidirectional character type of a Unicode character as specified by the

Unicode bidirectional algorithm.

Members

PANGO_BIDI_TYPE_L

Left-to-Right

  

PANGO_BIDI_TYPE_LRE

Left-to-Right Embedding

  

PANGO_BIDI_TYPE_LRO

Left-to-Right Override

  

PANGO_BIDI_TYPE_R

Right-to-Left

  

PANGO_BIDI_TYPE_AL

Right-to-Left Arabic

  

PANGO_BIDI_TYPE_RLE

Right-to-Left Embedding

  

PANGO_BIDI_TYPE_RLO

Right-to-Left Override

  

PANGO_BIDI_TYPE_PDF

Pop Directional Format

  

PANGO_BIDI_TYPE_EN

European Number

  

PANGO_BIDI_TYPE_ES

European Number Separator

  

PANGO_BIDI_TYPE_ET

European Number Terminator

  

PANGO_BIDI_TYPE_AN

Arabic Number

  

PANGO_BIDI_TYPE_CS

Common Number Separator

  

PANGO_BIDI_TYPE_NSM

Nonspacing Mark

  

PANGO_BIDI_TYPE_BN

Boundary Neutral

  

PANGO_BIDI_TYPE_B

Paragraph Separator

  

PANGO_BIDI_TYPE_S

Segment Separator

  

PANGO_BIDI_TYPE_WS

Whitespace

  

PANGO_BIDI_TYPE_ON

Other Neutrals

  

Since: 1.22

See Also

pango_context_get_base_dir(), pango_context_set_base_dir(), pango_itemize_with_base_dir()

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PangoEngineLang

PangoEngineLang — Rendering-system independent script engines

Stability Level

Unstable, unless otherwise indicated

Functions

#define PANGO_ENGINE_LANG_DEFINE_TYPE()

Types and Values

  PangoEngineLang
struct PangoEngineLangClass
#define PANGO_ENGINE_TYPE_LANG

Object Hierarchy

    GObject
    ╰── PangoEngine
        ╰── PangoEngineLang

Description

The language engines are rendering-system independent engines that determine line, word, and character breaks for character strings. These engines are used in pango_break().

Functions

PANGO_ENGINE_LANG_DEFINE_TYPE()

#define             PANGO_ENGINE_LANG_DEFINE_TYPE(name, prefix, class_init, instance_init)

PANGO_ENGINE_LANG_DEFINE_TYPE has been deprecated since version 1.38 and should not be used in newly-written code.

Outputs the necessary code for GObject type registration for a PangoEngineLang class defined in a module. Two static symbols are defined.

 static GType prefix_type;
 static void prefix_register_type (GTypeModule module);

The prefix_register_type() function should be called in your script_engine_init() function for each type that your module implements, and then your script_engine_create() function can create instances of the object as follows:

1
 
PangoEngine *engine = g_object_new (<em class="replaceable"><code>prefix</code></em>_type, NULL);

Parameters

name

Name of the the type to register (for example:, ArabicEngineFc

  

prefix

Prefix for symbols that will be defined (for example:, arabic_engine_fc

  

class_init

Class initialization function for the new type, or NULL.

[nullable]

instance_init

Instance initialization function for the new type, or NULL.

[nullable]

Types and Values

PangoEngineLang

typedef struct _PangoEngineLang PangoEngineLang;

PangoEngineLang has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoEngineLang class is implemented by engines that customize the rendering-system independent part of the Pango pipeline for a particular script or language. For instance, a custom PangoEngineLang could be provided for Thai to implement the dictionary-based word boundary lookups needed for that language.

struct PangoEngineLangClass

struct PangoEngineLangClass {
  void (*script_break) (PangoEngineLang *engine,
			const char    *text,
			int            len,
			PangoAnalysis *analysis,
			PangoLogAttr  *attrs,
			int            attrs_len);
};

PangoEngineLangClass has been deprecated since version 1.38 and should not be used in newly-written code.

Class structure for PangoEngineLang

Members

script_break ()

Provides a custom implementation of pango_break(). If NULL, pango_default_break() is used instead. If not NULL, for Pango versions before 1.16 (module interface version before 1.6.0), this was called instead of pango_default_break(), but in newer versions, pango_default_break() is always called and this is called after that to allow tailoring the breaking results.

[nullable]

PANGO_ENGINE_TYPE_LANG

#define PANGO_ENGINE_TYPE_LANG "PangoEngineLang"

PANGO_ENGINE_TYPE_LANG has been deprecated since version 1.38 and should not be used in newly-written code.

A string constant defining the engine type for language engines. These engines derive from PangoEngineLang.

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PangoEngineShape

PangoEngineShape — Rendering-system dependent script engines

Stability Level

Unstable, unless otherwise indicated

Functions

#define PANGO_ENGINE_SHAPE_DEFINE_TYPE()

Types and Values

  PangoEngineShape
struct PangoEngineShapeClass
#define PANGO_ENGINE_TYPE_SHAPE

Object Hierarchy

    GObject
    ╰── PangoEngine
        ╰── PangoEngineShape

Description

The shape engines are rendering-system dependent engines that convert character strings into glyph strings. These engines are used in pango_shape().

Functions

PANGO_ENGINE_SHAPE_DEFINE_TYPE()

#define             PANGO_ENGINE_SHAPE_DEFINE_TYPE(name, prefix, class_init, instance_init)

PANGO_ENGINE_SHAPE_DEFINE_TYPE has been deprecated since version 1.38 and should not be used in newly-written code.

Outputs the necessary code for GObject type registration for a PangoEngineShape class defined in a module. Two static symbols are defined.

 static GType prefix_type;
 static void prefix_register_type (GTypeModule module);

The prefix_register_type() function should be called in your script_engine_init() function for each type that your module implements, and then your script_engine_create() function can create instances of the object as follows:

1
 
PangoEngine *engine = g_object_new (<em class="replaceable"><code>prefix</code></em>_type, NULL);

Parameters

name

Name of the the type to register (for example:, ArabicEngineFc

  

prefix

Prefix for symbols that will be defined (for example:, arabic_engine_fc

  

class_init

Class initialization function for the new type, or NULL.

[nullable]

instance_init

Instance initialization function for the new type, or NULL.

[nullable]

Types and Values

PangoEngineShape

typedef struct _PangoEngineShape PangoEngineShape;

PangoEngineShape has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoEngineShape class is implemented by engines that customize the rendering-system dependent part of the Pango pipeline for a particular script or language. A PangoEngineShape implementation is then specific to both a particular rendering system or group of rendering systems and to a particular script. For instance, there is one PangoEngineShape implementation to handle shaping Arabic for Fontconfig-based backends.

struct PangoEngineShapeClass

struct PangoEngineShapeClass {
  void (*script_shape) (PangoEngineShape    *engine,
			PangoFont           *font,
			const char          *item_text,
			unsigned int         item_length,
			const PangoAnalysis *analysis,
			PangoGlyphString    *glyphs,
			const char          *paragraph_text,
			unsigned int         paragraph_length);
  PangoCoverageLevel (*covers)   (PangoEngineShape *engine,
				  PangoFont        *font,
				  PangoLanguage    *language,
				  gunichar          wc);
};

PangoEngineShapeClass has been deprecated since version 1.38 and should not be used in newly-written code.

Class structure for PangoEngineShape

Members

script_shape ()

Given a font, a piece of text, and a PangoAnalysis structure, converts characters to glyphs and positions the resulting glyphs. The results are stored in the PangoGlyphString that is passed in. (The implementation should resize it appropriately using pango_glyph_string_set_size()). All fields of the log_clusters and glyphs array must be filled in, with the exception that Pango will automatically generate glyphs->glyphs[i].attr.is_cluster_start using the log_clusters array. Each input character must occur in one of the output logical clusters; if no rendering is desired for a character, this may involve inserting glyphs with the PangoGlyph ID PANGO_GLYPH_EMPTY, which is guaranteed never to render. If the shaping fails for any reason, the shaper should return with an empty (zero-size) glyph string. If the shaper has not set the size on the glyph string yet, simply returning signals the failure too.

  

covers ()

Returns the characters that this engine can cover with a given font for a given language. If not overridden, the default implementation simply returns the coverage information for the font itself unmodified.

  

PANGO_ENGINE_TYPE_SHAPE

#define PANGO_ENGINE_TYPE_SHAPE "PangoEngineShape"

PANGO_ENGINE_TYPE_SHAPE has been deprecated since version 1.38 and should not be used in newly-written code.

A string constant defining the engine type for shaping engines. These engines derive from PangoEngineShape.

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PangoFcDecoder

PangoFcDecoder — Custom font encoding handling

Functions

FcCharSet * pango_fc_decoder_get_charset ()
PangoGlyph pango_fc_decoder_get_glyph ()

Types and Values

struct PangoFcDecoder
struct PangoFcDecoderClass

Object Hierarchy

    GObject
    ╰── PangoFcDecoder

Description

PangoFcDecoder represents a decoder that an application provides for handling a font that is encoded in a custom way.

Functions

pango_fc_decoder_get_charset ()

FcCharSet *
pango_fc_decoder_get_charset (PangoFcDecoder *decoder,
                              PangoFcFont *fcfont);

Generates an FcCharSet of supported characters for the fcfont given. The returned FcCharSet will be a reference to an internal value stored by the PangoFcDecoder and must not be modified or freed.

Parameters

decoder

a PangoFcDecoder

  

fcfont

the PangoFcFont to query.

  

Returns

the FcCharset for fcfont ; must not be modified or freed.

[transfer none]

Since: 1.6

pango_fc_decoder_get_glyph ()

PangoGlyph
pango_fc_decoder_get_glyph (PangoFcDecoder *decoder,
                            PangoFcFont *fcfont,
                            guint32 wc);

Generates a PangoGlyph for the given Unicode point using the custom decoder. For complex scripts where there can be multiple glyphs for a single character, the decoder will return whatever glyph is most convenient for it. (Usually whatever glyph is directly in the fonts character map table.)

Parameters

decoder

a PangoFcDecoder

  

fcfont

a PangoFcFont to query.

  

wc

the Unicode code point to convert to a single PangoGlyph.

  

Returns

the glyph index, or 0 if the glyph isn't covered by the font.

Since: 1.6

Types and Values

struct PangoFcDecoder

struct PangoFcDecoder;

PangoFcDecoder is a virtual base class that implementations will inherit from. It's the interface that is used to define a custom encoding for a font. These objects are created in your code from a function callback that was originally registered with pango_fc_font_map_add_decoder_find_func(). Pango requires information about the supported charset for a font as well as the individual character to glyph conversions. Pango gets that information via the get_charset and get_glyph callbacks into your object implementation.

Since: 1.6

struct PangoFcDecoderClass

struct PangoFcDecoderClass {
  FcCharSet  *(*get_charset) (PangoFcDecoder *decoder,
			      PangoFcFont    *fcfont);
  PangoGlyph  (*get_glyph)   (PangoFcDecoder *decoder,
			      PangoFcFont    *fcfont,
			      guint32         wc);
};

Class structure for PangoFcDecoder.

Members

get_charset ()

This returns an FcCharset given a PangoFcFont that includes a list of supported characters in the font. The FcCharSet that is returned should be an internal reference to your code. Pango will not free this structure. It is important that you make this callback fast because this callback is called separately for each character to determine Unicode coverage.

  

get_glyph ()

This returns a single PangoGlyph for a given Unicode code point.

  

Since: 1.6

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PangoFcFont

PangoFcFont — Base font class for Fontconfig-based backends

Functions

FT_Face pango_fc_font_lock_face ()
void pango_fc_font_unlock_face ()
gboolean pango_fc_font_has_char ()
guint pango_fc_font_get_glyph ()
PangoGlyph pango_fc_font_get_unknown_glyph ()
void pango_fc_font_kern_glyphs ()
PangoLanguage ** pango_fc_font_get_languages ()
FcPattern * pango_fc_font_get_pattern ()

Properties

PangoFcFontMap * fontmap Read / Write
gpointer pattern Read / Write / Construct Only

Types and Values

struct PangoFcFont
  PangoFcFontClass

Object Hierarchy

    GObject
    ╰── PangoFont
        ╰── PangoFcFont
            ╰── PangoXftFont

Description

PangoFcFont is a base class for font implementation using the Fontconfig and FreeType libraries. It is used in the

Xft and FreeType

backends shipped with Pango, but can also be used when creating new backends. Any backend deriving from this base class will take advantage of the wide range of shapers implemented using FreeType that come with Pango.

Functions

pango_fc_font_lock_face ()

FT_Face
pango_fc_font_lock_face (PangoFcFont *font);

pango_fc_font_lock_face has been deprecated since version 1.44 and should not be used in newly-written code.

Use pango_font_get_hb_font() instead

Gets the FreeType FT_Face associated with a font, This face will be kept around until you call pango_fc_font_unlock_face().

[skip]

Parameters

font

a PangoFcFont.

  

Returns

the FreeType FT_Face associated with font .

Since: 1.4

pango_fc_font_unlock_face ()

void
pango_fc_font_unlock_face (PangoFcFont *font);

pango_fc_font_unlock_face has been deprecated since version 1.44 and should not be used in newly-written code.

Use pango_font_get_hb_font() instead

Releases a font previously obtained with pango_fc_font_lock_face().

Parameters

font

a PangoFcFont.

  

Since: 1.4

pango_fc_font_has_char ()

gboolean
pango_fc_font_has_char (PangoFcFont *font,
                        gunichar wc);

pango_fc_font_has_char has been deprecated since version 1.44 and should not be used in newly-written code.

Use pango_font_has_char()

Determines whether font has a glyph for the codepoint wc .

Parameters

font

a PangoFcFont

  

wc

Unicode codepoint to look up

  

Returns

TRUE if font has the requested codepoint.

Since: 1.4

pango_fc_font_get_glyph ()

guint
pango_fc_font_get_glyph (PangoFcFont *font,
                         gunichar wc);

Gets the glyph index for a given Unicode character for font . If you only want to determine whether the font has the glyph, use pango_fc_font_has_char().

Parameters

font

a PangoFcFont

  

wc

Unicode character to look up

  

Returns

the glyph index, or 0, if the Unicode character doesn't exist in the font.

Since: 1.4

pango_fc_font_get_unknown_glyph ()

PangoGlyph
pango_fc_font_get_unknown_glyph (PangoFcFont *font,
                                 gunichar wc);

pango_fc_font_get_unknown_glyph is deprecated and should not be used in newly-written code.

Returns the index of a glyph suitable for drawing wc as an unknown character.

Use PANGO_GET_UNKNOWN_GLYPH() instead.

Parameters

font

a PangoFcFont

  

wc

the Unicode character for which a glyph is needed.

  

Returns

a glyph index into font .

Since: 1.4

pango_fc_font_kern_glyphs ()

void
pango_fc_font_kern_glyphs (PangoFcFont *font,
                           PangoGlyphString *glyphs);

pango_fc_font_kern_glyphs has been deprecated since version 1.32 and should not be used in newly-written code.

This function used to adjust each adjacent pair of glyphs in glyphs according to kerning information in font .

Since 1.44, it does nothing.

Parameters

font

a PangoFcFont

  

glyphs

a PangoGlyphString

  

Since: 1.4

pango_fc_font_get_languages ()

PangoLanguage **
pango_fc_font_get_languages (PangoFcFont *font);

Returns the languages that are supported by font .

This corresponds to the FC_LANG member of the FcPattern.

The returned array is only valid as long as the font and its fontmap are valid.

Parameters

font

a PangoFcFont

  

Returns

a NULL-terminated array of PangoLanguage*.

[transfer none][nullable]

Since: 1.48

pango_fc_font_get_pattern ()

FcPattern *
pango_fc_font_get_pattern (PangoFcFont *font);

Returns the FcPattern that font is based on.

[skip]

Parameters

font

a PangoFcFont

  

Returns

the fontconfig pattern for this font

Since: 1.48

Types and Values

struct PangoFcFont

struct PangoFcFont;

PangoFcFont is deprecated and should not be used in newly-written code.

PangoFcFont is a base class for font implementations using the Fontconfig and FreeType libraries and is used in conjunction with PangoFcFontMap. When deriving from this class, you need to implement all of its virtual functions other than shutdown() along with the get_glyph_extents() virtual function from PangoFont.

PangoFcFontClass

typedef struct {
  FT_Face    (*lock_face)         (PangoFcFont      *font);
  void       (*unlock_face)       (PangoFcFont      *font);
  gboolean   (*has_char)          (PangoFcFont      *font,
				   gunichar          wc);
  guint      (*get_glyph)         (PangoFcFont      *font,
				   gunichar          wc);
  PangoGlyph (*get_unknown_glyph) (PangoFcFont      *font,
				   gunichar          wc);
  void       (*shutdown)          (PangoFcFont      *font);
} PangoFcFontClass;

Class structure for PangoFcFont.

Members

lock_face ()

Returns the FT_Face of the font and increases the reference count for the face by one.

  

unlock_face ()

Decreases the reference count for the FT_Face of the font by one. When the count is zero, the PangoFcFont subclass is allowed to free the FT_Face.

  

has_char ()

Return TRUE if the the font contains a glyph corresponding to the specified character.

  

get_glyph ()

Gets the glyph that corresponds to the given Unicode character.

  

get_unknown_glyph ()

Gets the glyph that should be used to display an unknown-glyph indication for the specified Unicode character. May be NULL.

[nullable]

shutdown ()

Performs any font-specific shutdown code that needs to be done when pango_fc_font_map_shutdown is called. May be NULL.

[nullable]

Property Details

The “fontmap†property

  “fontmap†                 PangoFcFontMap *

The PangoFc font map this font is associated with (Since: 1.26).

Owner: PangoFcFont

Flags: Read / Write

The “pattern†property

  “pattern†                 gpointer

The fontconfig pattern for this font.

Owner: PangoFcFont

Flags: Read / Write / Construct Only

See Also

PangoFcFontMap

 The base class for font maps; creating a new Fontconfig-based backend involves deriving from both PangoFcFontMap and PangoFcFont.
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PangoFcFontMap

PangoFcFontMap — Base fontmap class for Fontconfig-based backends

Functions

PangoContext * pango_fc_font_map_create_context ()
PangoFcDecoder * (*PangoFcDecoderFindFunc) ()
void pango_fc_font_map_add_decoder_find_func ()
PangoFcDecoder * pango_fc_font_map_find_decoder ()
void pango_fc_font_map_cache_clear ()
void pango_fc_font_map_config_changed ()
void pango_fc_font_map_shutdown ()
void pango_fc_font_map_set_config ()
FcConfig * pango_fc_font_map_get_config ()
void (*PangoFcSubstituteFunc) ()
void pango_fc_font_map_set_default_substitute ()
void pango_fc_font_map_substitute_changed ()
PangoFontDescription * pango_fc_font_description_from_pattern ()

Types and Values

  PangoFcFontMap
  PangoFcFontMapClass
#define PANGO_FC_FONT_FEATURES
#define PANGO_FC_GRAVITY
#define PANGO_FC_VERSION
#define PANGO_FC_PRGNAME
#define PANGO_FC_FONT_VARIATIONS

Object Hierarchy

    GObject
    ╰── PangoFontMap
        ╰── PangoFcFontMap
            ├── PangoFT2FontMap
            ╰── PangoXftFontMap

Implemented Interfaces

PangoFcFontMap implements GListModel.

Description

PangoFcFontMap is a base class for font map implementations using the Fontconfig and FreeType libraries. It is used in the

Xft and FreeType

backends shipped with Pango, but can also be used when creating new backends. Any backend deriving from this base class will take advantage of the wide range of shapers implemented using FreeType that come with Pango.

Functions

pango_fc_font_map_create_context ()

PangoContext *
pango_fc_font_map_create_context (PangoFcFontMap *fcfontmap);

pango_fc_font_map_create_context has been deprecated since version 1.22 and should not be used in newly-written code.

Use pango_font_map_create_context() instead.

Creates a new context for this fontmap. This function is intended only for backend implementations deriving from PangoFcFontMap; it is possible that a backend will store additional information needed for correct operation on the PangoContext after calling this function.

Parameters

fcfontmap

a PangoFcFontMap

  

Returns

a new PangoContext.

[transfer full]

Since: 1.4

PangoFcDecoderFindFunc ()

PangoFcDecoder *
(*PangoFcDecoderFindFunc) (FcPattern *pattern,
                           gpointer user_data);

Callback function passed to pango_fc_font_map_add_decoder_find_func().

Parameters

pattern

a fully resolved FcPattern specifying the font on the system

  

user_data

user data passed to pango_fc_font_map_add_decoder_find_func()

  

Returns

a new reference to a custom decoder for this pattern, or NULL if the default decoder handling should be used.

pango_fc_font_map_add_decoder_find_func ()

void
pango_fc_font_map_add_decoder_find_func
                               (PangoFcFontMap *fcfontmap,
                                PangoFcDecoderFindFunc findfunc,
                                gpointer user_data,
                                GDestroyNotify dnotify);

This function saves a callback method in the PangoFcFontMap that will be called whenever new fonts are created. If the function returns a PangoFcDecoder, that decoder will be used to determine both coverage via a FcCharSet and a one-to-one mapping of characters to glyphs. This will allow applications to have application-specific encodings for various fonts.

Parameters

fcfontmap

The PangoFcFontMap to add this method to.

  

findfunc

The PangoFcDecoderFindFunc callback function

  

user_data

User data.

  

dnotify

A GDestroyNotify callback that will be called when the fontmap is finalized and the decoder is released.

  

Since: 1.6

pango_fc_font_map_find_decoder ()

PangoFcDecoder *
pango_fc_font_map_find_decoder (PangoFcFontMap *fcfontmap,
                                FcPattern *pattern);

Finds the decoder to use for pattern . Decoders can be added to a font map using pango_fc_font_map_add_decoder_find_func().

Parameters

fcfontmap

The PangoFcFontMap to use.

  

pattern

The FcPattern to find the decoder for.

  

Returns

a newly created PangoFcDecoder object or NULL if no decoder is set for pattern .

[transfer full][nullable]

Since: 1.26

pango_fc_font_map_cache_clear ()

void
pango_fc_font_map_cache_clear (PangoFcFontMap *fcfontmap);

Clear all cached information and fontsets for this font map; this should be called whenever there is a change in the output of the default_substitute() virtual function of the font map, or if fontconfig has been reinitialized to new configuration.

Parameters

fcfontmap

a PangoFcFontMap

  

Since: 1.4

pango_fc_font_map_config_changed ()

void
pango_fc_font_map_config_changed (PangoFcFontMap *fcfontmap);

Informs font map that the fontconfig configuration (ie, FcConfig object) used by this font map has changed. This currently calls pango_fc_font_map_cache_clear() which ensures that list of fonts, etc will be regenerated using the updated configuration.

Parameters

fcfontmap

a PangoFcFontMap

  

Since: 1.38

pango_fc_font_map_shutdown ()

void
pango_fc_font_map_shutdown (PangoFcFontMap *fcfontmap);

Clears all cached information for the fontmap and marks all fonts open for the fontmap as dead. (See the shutdown() virtual function of PangoFcFont.) This function might be used by a backend when the underlying windowing system for the font map exits. This function is only intended to be called only for backend implementations deriving from PangoFcFontMap.

Parameters

fcfontmap

a PangoFcFontMap

  

Since: 1.4

pango_fc_font_map_set_config ()

void
pango_fc_font_map_set_config (PangoFcFontMap *fcfontmap,
                              FcConfig *fcconfig);

Set the FcConfig for this font map to use. The default value is NULL, which causes Fontconfig to use its global "current config". You can create a new FcConfig object and use this API to attach it to a font map.

This is particularly useful for example, if you want to use application fonts with Pango. For that, you would create a fresh FcConfig, add your app fonts to it, and attach it to a new Pango font map.

If fcconfig is different from the previous config attached to the font map, pango_fc_font_map_config_changed() is called.

This function acquires a reference to the FcConfig object; the caller does NOT need to retain a reference.

[skip]

Parameters

fcfontmap

a PangoFcFontMap

  

fcconfig

a FcConfig, or NULL.

[nullable]

Since: 1.38

pango_fc_font_map_get_config ()

FcConfig *
pango_fc_font_map_get_config (PangoFcFontMap *fcfontmap);

Fetches the FcConfig attached to a font map.

See also: pango_fc_font_map_set_config()

[skip]

Parameters

fcfontmap

a PangoFcFontMap

  

Returns

the FcConfig object attached to fcfontmap , which might be NULL.

[nullable]

Since: 1.38

PangoFcSubstituteFunc ()

void
(*PangoFcSubstituteFunc) (FcPattern *pattern,
                          gpointer data);

Function type for doing final config tweaking on prepared FcPatterns.

Parameters

pattern

the FcPattern to tweak.

  

data

user data.

  

pango_fc_font_map_set_default_substitute ()

void
pango_fc_font_map_set_default_substitute
                               (PangoFcFontMap *fontmap,
                                PangoFcSubstituteFunc func,
                                gpointer data,
                                GDestroyNotify notify);

Sets a function that will be called to do final configuration substitution on a FcPattern before it is used to load the font. This function can be used to do things like set hinting and antialiasing options.

Parameters

fontmap

a PangoFcFontMap

  

func

function to call to to do final config tweaking on FcPattern objects.

  

data

data to pass to func

 

notify

function to call when data is no longer used.

  

Since: 1.48

pango_fc_font_map_substitute_changed ()

void
pango_fc_font_map_substitute_changed (PangoFcFontMap *fontmap);

Call this function any time the results of the default substitution function set with pango_fc_font_map_set_default_substitute() change. That is, if your substitution function will return different results for the same input pattern, you must call this function.

Parameters

fontmap

a PangoFcFontMap

  

Since: 1.48

pango_fc_font_description_from_pattern ()

PangoFontDescription *
pango_fc_font_description_from_pattern
                               (FcPattern *pattern,
                                gboolean include_size);

Creates a PangoFontDescription that matches the specified Fontconfig pattern as closely as possible. Many possible Fontconfig pattern values, such as FC_RASTERIZER or FC_DPI, don't make sense in the context of PangoFontDescription, so will be ignored.

Parameters

pattern

a FcPattern

  

include_size

if TRUE, the pattern will include the size from the pattern ; otherwise the resulting pattern will be unsized. (only FC_SIZE is examined, not FC_PIXEL_SIZE)

  

Returns

a new PangoFontDescription. Free with pango_font_description_free().

Since: 1.4

Types and Values

PangoFcFontMap

typedef struct _PangoFcFontMap PangoFcFontMap;

PangoFcFontMap is a base class for font map implementations using the Fontconfig and FreeType libraries. To create a new backend using Fontconfig and FreeType, you derive from this class and implement a new_font() virtual function that creates an instance deriving from PangoFcFont.

PangoFcFontMapClass

typedef struct _PangoFcFontMapClass PangoFcFontMapClass;

Class structure for PangoFcFontMap.

Members

PANGO_FC_FONT_FEATURES

#define PANGO_FC_FONT_FEATURES "fontfeatures"

String representing a fontconfig property name that Pango reads from font patterns to populate list of OpenType features to be enabled for the font by default.

The property will have a number of string elements, each of which is the OpenType feature tag of one feature to enable.

This is equivalent to FC_FONT_FEATURES in versions of fontconfig that have that.

Since: 1.34

PANGO_FC_GRAVITY

#define PANGO_FC_GRAVITY "pangogravity"

String representing a fontconfig property name that Pango sets on any fontconfig pattern it passes to fontconfig if a PangoGravity other than PANGO_GRAVITY_SOUTH is desired.

The property will have a PangoGravity value as a string, like "east". This can be used to write fontconfig configuration rules to choose different fonts for horizontal and vertical writing directions.

Since: 1.20

PANGO_FC_VERSION

#define PANGO_FC_VERSION "pangoversion"

String representing a fontconfig property name that Pango sets on any fontconfig pattern it passes to fontconfig.

The property will have an integer value equal to what pango_version() returns. This can be used to write fontconfig configuration rules that only affect certain pango versions (or only pango-using applications, or only non-pango-using applications).

Since: 1.20

PANGO_FC_PRGNAME

#define PANGO_FC_PRGNAME "prgname"

String representing a fontconfig property name that Pango sets on any fontconfig pattern it passes to fontconfig.

The property will have a string equal to what g_get_prgname() returns. This can be used to write fontconfig configuration rules that only affect certain applications.

This is equivalent to FC_PRGNAME in versions of fontconfig that have that.

Since: 1.24

PANGO_FC_FONT_VARIATIONS

#define PANGO_FC_FONT_VARIATIONS "fontvariations"

String representing a fontconfig property name that Pango reads from font patterns to populate list of OpenType font variations to be used for a font.

The property will have a string elements, each of which a comma-separated list of OpenType axis setting of the form AXIS=VALUE.

See Also

PangoFcFont

 The base class for fonts; creating a new Fontconfig-based backend involves deriving from both PangoFcFontMap and PangoFcFont.
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docs/html/PangoRenderer.html0000664000175000017500000020552614002404370016227 0ustar mclasenmclasen PangoRenderer: Pango Reference Manual

PangoRenderer

PangoRenderer — Rendering driver base class

Functions

void pango_renderer_draw_layout ()
void pango_renderer_draw_layout_line ()
void pango_renderer_draw_glyphs ()
void pango_renderer_draw_glyph_item ()
void pango_renderer_draw_rectangle ()
void pango_renderer_draw_error_underline ()
void pango_renderer_draw_trapezoid ()
void pango_renderer_draw_glyph ()
void pango_renderer_activate ()
void pango_renderer_deactivate ()
void pango_renderer_part_changed ()
void pango_renderer_set_color ()
PangoColor * pango_renderer_get_color ()
void pango_renderer_set_alpha ()
guint16 pango_renderer_get_alpha ()
void pango_renderer_set_matrix ()
const PangoMatrix * pango_renderer_get_matrix ()
PangoLayout * pango_renderer_get_layout ()
PangoLayoutLine * pango_renderer_get_layout_line ()

Types and Values

struct PangoRenderer
enum PangoRenderPart
#define PANGO_TYPE_RENDER_PART
struct PangoRendererClass

Object Hierarchy

    GEnum
    ╰── PangoRenderPart
    GObject
    ╰── PangoRenderer
        ╰── PangoXftRenderer

Description

PangoRenderer is a base class that contains the necessary logic for rendering a PangoLayout or PangoLayoutLine. By subclassing PangoRenderer and overriding operations such as draw_glyphs and draw_rectangle , renderers for particular font backends and destinations can be created.

Functions

pango_renderer_draw_layout ()

void
pango_renderer_draw_layout (PangoRenderer *renderer,
                            PangoLayout *layout,
                            int x,
                            int y);

Draws layout with the specified PangoRenderer.

Parameters

renderer

a PangoRenderer

  

layout

a PangoLayout

  

x

X position of left edge of baseline, in user space coordinates in Pango units.

  

y

Y position of left edge of baseline, in user space coordinates in Pango units.

  

Since: 1.8

pango_renderer_draw_layout_line ()

void
pango_renderer_draw_layout_line (PangoRenderer *renderer,
                                 PangoLayoutLine *line,
                                 int x,
                                 int y);

Draws line with the specified PangoRenderer.

Parameters

renderer

a PangoRenderer

  

line

a PangoLayoutLine

  

x

X position of left edge of baseline, in user space coordinates in Pango units.

  

y

Y position of left edge of baseline, in user space coordinates in Pango units.

  

Since: 1.8

pango_renderer_draw_glyphs ()

void
pango_renderer_draw_glyphs (PangoRenderer *renderer,
                            PangoFont *font,
                            PangoGlyphString *glyphs,
                            int x,
                            int y);

Draws the glyphs in glyphs with the specified PangoRenderer.

Parameters

renderer

a PangoRenderer

  

font

a PangoFont

  

glyphs

a PangoGlyphString

  

x

X position of left edge of baseline, in user space coordinates in Pango units.

  

y

Y position of left edge of baseline, in user space coordinates in Pango units.

  

Since: 1.8

pango_renderer_draw_glyph_item ()

void
pango_renderer_draw_glyph_item (PangoRenderer *renderer,
                                const char *text,
                                PangoGlyphItem *glyph_item,
                                int x,
                                int y);

Draws the glyphs in glyph_item with the specified PangoRenderer, embedding the text associated with the glyphs in the output if the output format supports it (PDF for example).

Note that text is the start of the text for layout, which is then indexed by glyph_item->item->offset .

If text is NULL, this simply calls pango_renderer_draw_glyphs().

The default implementation of this method simply falls back to pango_renderer_draw_glyphs().

Parameters

renderer

a PangoRenderer

  

text

the UTF-8 text that glyph_item refers to, or NULL.

[allow-none]

glyph_item

a PangoGlyphItem

  

x

X position of left edge of baseline, in user space coordinates in Pango units.

  

y

Y position of left edge of baseline, in user space coordinates in Pango units.

  

Since: 1.22

pango_renderer_draw_rectangle ()

void
pango_renderer_draw_rectangle (PangoRenderer *renderer,
                               PangoRenderPart part,
                               int x,
                               int y,
                               int width,
                               int height);

Draws an axis-aligned rectangle in user space coordinates with the specified PangoRenderer.

This should be called while renderer is already active. Use pango_renderer_activate() to activate a renderer.

Parameters

renderer

a PangoRenderer

  

part

type of object this rectangle is part of

  

x

X position at which to draw rectangle, in user space coordinates in Pango units

  

y

Y position at which to draw rectangle, in user space coordinates in Pango units

  

width

width of rectangle in Pango units in user space coordinates

  

height

height of rectangle in Pango units in user space coordinates

  

Since: 1.8

pango_renderer_draw_error_underline ()

void
pango_renderer_draw_error_underline (PangoRenderer *renderer,
                                     int x,
                                     int y,
                                     int width,
                                     int height);

Draw a squiggly line that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle)

This should be called while renderer is already active. Use pango_renderer_activate() to activate a renderer.

Parameters

renderer

a PangoRenderer

  

x

X coordinate of underline, in Pango units in user coordinate system

  

y

Y coordinate of underline, in Pango units in user coordinate system

  

width

width of underline, in Pango units in user coordinate system

  

height

height of underline, in Pango units in user coordinate system

  

Since: 1.8

pango_renderer_draw_trapezoid ()

void
pango_renderer_draw_trapezoid (PangoRenderer *renderer,
                               PangoRenderPart part,
                               double y1_,
                               double x11,
                               double x21,
                               double y2,
                               double x12,
                               double x22);

Draws a trapezoid with the parallel sides aligned with the X axis using the given PangoRenderer; coordinates are in device space.

Parameters

renderer

a PangoRenderer

  

part

type of object this trapezoid is part of

  

y1_

Y coordinate of top of trapezoid

  

x11

X coordinate of left end of top of trapezoid

  

x21

X coordinate of right end of top of trapezoid

  

y2

Y coordinate of bottom of trapezoid

  

x12

X coordinate of left end of bottom of trapezoid

  

x22

X coordinate of right end of bottom of trapezoid

  

Since: 1.8

pango_renderer_draw_glyph ()

void
pango_renderer_draw_glyph (PangoRenderer *renderer,
                           PangoFont *font,
                           PangoGlyph glyph,
                           double x,
                           double y);

Draws a single glyph with coordinates in device space.

Parameters

renderer

a PangoRenderer

  

font

a PangoFont

  

glyph

the glyph index of a single glyph

  

x

X coordinate of left edge of baseline of glyph

  

y

Y coordinate of left edge of baseline of glyph

  

Since: 1.8

pango_renderer_activate ()

void
pango_renderer_activate (PangoRenderer *renderer);

Does initial setup before rendering operations on renderer . pango_renderer_deactivate() should be called when done drawing. Calls such as pango_renderer_draw_layout() automatically activate the layout before drawing on it. Calls to pango_renderer_activate() and pango_renderer_deactivate() can be nested and the renderer will only be initialized and deinitialized once.

Parameters

renderer

a PangoRenderer

  

Since: 1.8

pango_renderer_deactivate ()

void
pango_renderer_deactivate (PangoRenderer *renderer);

Cleans up after rendering operations on renderer . See docs for pango_renderer_activate().

Parameters

renderer

a PangoRenderer

  

Since: 1.8

pango_renderer_part_changed ()

void
pango_renderer_part_changed (PangoRenderer *renderer,
                             PangoRenderPart part);

Informs Pango that the way that the rendering is done for part has changed in a way that would prevent multiple pieces being joined together into one drawing call. For instance, if a subclass of PangoRenderer was to add a stipple option for drawing underlines, it needs to call

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pango_renderer_part_changed (render, PANGO_RENDER_PART_UNDERLINE);

When the stipple changes or underlines with different stipples might be joined together. Pango automatically calls this for changes to colors. (See pango_renderer_set_color())

Parameters

renderer

a PangoRenderer

  

part

the part for which rendering has changed.

  

Since: 1.8

pango_renderer_set_color ()

void
pango_renderer_set_color (PangoRenderer *renderer,
                          PangoRenderPart part,
                          const PangoColor *color);

Sets the color for part of the rendering. Also see pango_renderer_set_alpha().

Parameters

renderer

a PangoRenderer

  

part

the part to change the color of

  

color

the new color or NULL to unset the current color.

[allow-none]

Since: 1.8

pango_renderer_get_color ()

PangoColor *
pango_renderer_get_color (PangoRenderer *renderer,
                          PangoRenderPart part);

Gets the current rendering color for the specified part.

Parameters

renderer

a PangoRenderer

  

part

the part to get the color for

  

Returns

the color for the specified part, or NULL if it hasn't been set and should be inherited from the environment.

[transfer none][nullable]

Since: 1.8

pango_renderer_set_alpha ()

void
pango_renderer_set_alpha (PangoRenderer *renderer,
                          PangoRenderPart part,
                          guint16 alpha);

Sets the alpha for part of the rendering. Note that the alpha may only be used if a color is specified for part as well.

Parameters

renderer

a PangoRenderer

  

part

the part to set the alpha for

  

alpha

an alpha value between 1 and 65536, or 0 to unset the alpha

  

Since: 1.38

pango_renderer_get_alpha ()

guint16
pango_renderer_get_alpha (PangoRenderer *renderer,
                          PangoRenderPart part);

Gets the current alpha for the specified part.

Parameters

renderer

a PangoRenderer

  

part

the part to get the alpha for

  

Returns

the alpha for the specified part, or 0 if it hasn't been set and should be inherited from the environment.

Since: 1.38

pango_renderer_set_matrix ()

void
pango_renderer_set_matrix (PangoRenderer *renderer,
                           const PangoMatrix *matrix);

Sets the transformation matrix that will be applied when rendering.

Parameters

renderer

a PangoRenderer

  

matrix

a PangoMatrix, or NULL to unset any existing matrix. (No matrix set is the same as setting the identity matrix.).

[allow-none]

Since: 1.8

pango_renderer_get_matrix ()

const PangoMatrix *
pango_renderer_get_matrix (PangoRenderer *renderer);

Gets the transformation matrix that will be applied when rendering. See pango_renderer_set_matrix().

Parameters

renderer

a PangoRenderer

  

Returns

the matrix, or NULL if no matrix has been set (which is the same as the identity matrix). The returned matrix is owned by Pango and must not be modified or freed.

[nullable]

Since: 1.8

pango_renderer_get_layout ()

PangoLayout *
pango_renderer_get_layout (PangoRenderer *renderer);

Gets the layout currently being rendered using renderer . Calling this function only makes sense from inside a subclass's methods, like in its draw_shape vfunc, for example.

The returned layout should not be modified while still being rendered.

Parameters

renderer

a PangoRenderer

  

Returns

the layout, or NULL if no layout is being rendered using renderer at this time.

[transfer none][nullable]

Since: 1.20

pango_renderer_get_layout_line ()

PangoLayoutLine *
pango_renderer_get_layout_line (PangoRenderer *renderer);

Gets the layout line currently being rendered using renderer . Calling this function only makes sense from inside a subclass's methods, like in its draw_shape vfunc, for example.

The returned layout line should not be modified while still being rendered.

Parameters

renderer

a PangoRenderer

  

Returns

the layout line, or NULL if no layout line is being rendered using renderer at this time.

[transfer none][nullable]

Since: 1.20

Types and Values

struct PangoRenderer

struct PangoRenderer {
  PangoMatrix *matrix;          /* May be NULL */
};

PangoRenderer is a base class for objects that are used to render Pango objects such as PangoGlyphString and PangoLayout.

Members

PangoMatrix *matrix;

the current transformation matrix for the Renderer; may be NULL, which should be treated the same as the identity matrix.

[nullable]

Since: 1.8

enum PangoRenderPart

PangoRenderPart defines different items to render for such purposes as setting colors.

Members

PANGO_RENDER_PART_FOREGROUND

the text itself

  

PANGO_RENDER_PART_BACKGROUND

the area behind the text

  

PANGO_RENDER_PART_UNDERLINE

underlines

  

PANGO_RENDER_PART_STRIKETHROUGH

strikethrough lines

  

PANGO_RENDER_PART_OVERLINE

overlines

  

Since: 1.8

PANGO_TYPE_RENDER_PART

#define PANGO_TYPE_RENDER_PART (pango_render_part_get_type ())

struct PangoRendererClass

struct PangoRendererClass {
  void (*draw_glyphs)          (PangoRenderer    *renderer,
                                PangoFont        *font,
                                PangoGlyphString *glyphs,
                                int               x,
                                int               y);
  void (*draw_rectangle)       (PangoRenderer    *renderer,
                                PangoRenderPart   part,
                                int               x,
                                int               y,
                                int               width,
                                int               height);
  void (*draw_error_underline) (PangoRenderer    *renderer,
                                int               x,
                                int               y,
                                int               width,
                                int               height);
  void (*draw_shape)           (PangoRenderer    *renderer,
                                PangoAttrShape   *attr,
                                int               x,
                                int               y);

  void (*draw_trapezoid)       (PangoRenderer    *renderer,
                                PangoRenderPart   part,
                                double            y1_,
                                double            x11,
                                double            x21,
                                double            y2,
                                double            x12,
                                double            x22);
  void (*draw_glyph)           (PangoRenderer    *renderer,
                                PangoFont        *font,
                                PangoGlyph        glyph,
                                double            x,
                                double            y);

  void (*part_changed)         (PangoRenderer    *renderer,
                                PangoRenderPart   part);

  void (*begin)                (PangoRenderer    *renderer);
  void (*end)                  (PangoRenderer    *renderer);

  void (*prepare_run)          (PangoRenderer    *renderer,
                                PangoLayoutRun   *run);

  void (*draw_glyph_item)      (PangoRenderer    *renderer,
                                const char       *text,
                                PangoGlyphItem   *glyph_item,
                                int               x,
                                int               y);
};

Class structure for PangoRenderer.

The following vfuncs take user space coordinates in Pango units and have default implementations:

  • draw_glyphs

  • draw_rectangle

  • draw_error_underline

  • draw_shape

  • draw_glyph_item

The default draw_shape implementation draws nothing.

The following vfuncs take device space coordinates as doubles and must be implemented:

  • draw_trapezoid

  • draw_glyph

Members

draw_glyphs ()

draws a PangoGlyphString

  

draw_rectangle ()

draws a rectangle

  

draw_error_underline ()

draws a squiggly line that approximately covers the given rectangle in the style of an underline used to indicate a spelling error.

  

draw_shape ()

draw content for a glyph shaped with PangoAttrShape. x , y are the coordinates of the left edge of the baseline, in user coordinates.

  

draw_trapezoid ()

draws a trapezoidal filled area

  

draw_glyph ()

draws a single glyph

  

part_changed ()

do renderer specific processing when rendering attributes change

  

begin ()

Do renderer-specific initialization before drawing

  

end ()

Do renderer-specific cleanup after drawing

  

prepare_run ()

updates the renderer for a new run

  

draw_glyph_item ()

draws a PangoGlyphItem

  

Since: 1.8

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Annotation Glossary

A

allow-none

NULL is OK, both for passing and for returning.

array

Parameter points to an array of items.

C

closure

This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.

E

element-type

Generics and defining elements of containers and arrays.

I

inout

Parameter for input and for returning results. Default is transfer full.

N

not nullable

NULL must not be passed as the value in, out, in-out; or as a return value.

nullable

NULL may be passed as the value in, out, in-out; or as a return value.

O

optional

NULL may be passed instead of a pointer to a location.

out

Parameter for returning results. Default is transfer full.

out caller-allocates

Out parameter, where caller must allocate storage.

S

scope call

The callback is valid only during the call to the method.

skip

Exposed in C code, not necessarily available in other languages.

T

transfer container

Free data container after the code is done.

transfer full

Free data after the code is done.

transfer none

Don't free data after the code is done.

type

Override the parsed C type with given type.

U

Unstable

Unstable interfaces are experimental or transitional. They are typically used to give outside developers early access to new or rapidly changing technology, or to provide an interim solution to a problem where a more general solution is anticipated. No claims are made about either source or binary compatibility from one minor release to the next. The Unstable interface level is a warning that these interfaces are subject to change without warning and should not be used in unbundled products. Given such caveats, customer impact need not be a factor when considering incompatible changes to an Unstable interface in a major or minor release. Nonetheless, when such changes are introduced, the changes should still be mentioned in the release notes for the affected release.

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docs/html/api-index-1-10.html0000664000175000017500000002145014002404370015716 0ustar mclasenmclasen Index of new symbols in 1.10: Pango Reference Manual

Index of new symbols in 1.10

A

pango_attr_list_ref, function in Text Attributes

C

PangoCairoFontMap, struct in Cairo Rendering
pango_cairo_context_get_font_options, function in Cairo Rendering
pango_cairo_context_get_resolution, function in Cairo Rendering
pango_cairo_context_set_font_options, function in Cairo Rendering
pango_cairo_context_set_resolution, function in Cairo Rendering
pango_cairo_create_layout, function in Cairo Rendering
pango_cairo_font_map_create_context, function in Cairo Rendering
pango_cairo_font_map_get_default, function in Cairo Rendering
pango_cairo_font_map_get_resolution, function in Cairo Rendering
pango_cairo_font_map_new, function in Cairo Rendering
pango_cairo_font_map_set_resolution, function in Cairo Rendering
pango_cairo_glyph_string_path, function in Cairo Rendering
pango_cairo_layout_line_path, function in Cairo Rendering
pango_cairo_layout_path, function in Cairo Rendering
pango_cairo_show_glyph_string, function in Cairo Rendering
pango_cairo_show_layout, function in Cairo Rendering
pango_cairo_show_layout_line, function in Cairo Rendering
pango_cairo_update_context, function in Cairo Rendering
pango_cairo_update_layout, function in Cairo Rendering

F

pango_font_get_font_map, function in Fonts

I

pango_is_zero_width, function in Miscellaneous Utilities

L

pango_layout_line_ref, function in Layout Objects
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Index of new symbols in 1.12

M

pango_matrix_get_font_scale_factor, function in Glyph Storage

Q

pango_quantize_line_geometry, function in Miscellaneous Utilities

W

pango_win32_font_description_from_logfont, function in Win32 Fonts and Rendering
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docs/html/api-index-1-14.html0000664000175000017500000000741214002404370015724 0ustar mclasenmclasen Index of new symbols in 1.14: Pango Reference Manual

Index of new symbols in 1.14

C

pango_cairo_error_underline_path, function in Cairo Rendering
pango_cairo_show_error_underline, function in Cairo Rendering

F

pango_font_describe_with_absolute_size, function in Fonts

G

pango_glyph_string_get_width, function in Glyph Storage

P

PANGO_PIXELS_CEIL, macro in Glyph Storage
PANGO_PIXELS_FLOOR, macro in Glyph Storage
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Index of new symbols in 1.20

A

pango_attribute_init, function in Text Attributes

F

PANGO_FC_GRAVITY, macro in PangoFcFontMap
PANGO_FC_VERSION, macro in PangoFcFontMap

G

PANGO_GLYPH_INVALID_INPUT, macro in Glyph Storage
pango_glyph_item_copy, function in Glyph Storage

L

pango_layout_get_height, function in Layout Objects
pango_layout_iter_copy, function in Layout Objects
pango_layout_iter_get_layout, function in Layout Objects
pango_layout_set_height, function in Layout Objects

R

pango_renderer_get_layout, function in PangoRenderer
pango_renderer_get_layout_line, function in PangoRenderer
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Index of new symbols in 1.32.4

C

pango_context_changed, function in Contexts
pango_context_get_serial, function in Contexts

F

pango_font_map_get_serial, function in Fonts

L

pango_layout_get_serial, function in Layout Objects
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docs/html/pango-Cairo-Rendering.html0000664000175000017500000026671514002404370017555 0ustar mclasenmclasen Cairo Fonts and Rendering: Pango Reference Manual

Cairo Fonts and Rendering

Cairo Fonts and Rendering — Font handling and rendering with Cairo

Functions

PangoFontMap * pango_cairo_font_map_get_default ()
void pango_cairo_font_map_set_default ()
PangoFontMap * pango_cairo_font_map_new ()
PangoFontMap * pango_cairo_font_map_new_for_font_type ()
cairo_font_type_t pango_cairo_font_map_get_font_type ()
void pango_cairo_font_map_set_resolution ()
double pango_cairo_font_map_get_resolution ()
PangoContext * pango_cairo_font_map_create_context ()
cairo_scaled_font_t * pango_cairo_font_get_scaled_font ()
void pango_cairo_context_set_resolution ()
double pango_cairo_context_get_resolution ()
void pango_cairo_context_set_font_options ()
const cairo_font_options_t * pango_cairo_context_get_font_options ()
void (*PangoCairoShapeRendererFunc) ()
void pango_cairo_context_set_shape_renderer ()
PangoCairoShapeRendererFunc pango_cairo_context_get_shape_renderer ()
PangoContext * pango_cairo_create_context ()
void pango_cairo_update_context ()
PangoLayout * pango_cairo_create_layout ()
void pango_cairo_update_layout ()
void pango_cairo_show_glyph_string ()
void pango_cairo_show_glyph_item ()
void pango_cairo_show_layout_line ()
void pango_cairo_show_layout ()
void pango_cairo_show_error_underline ()
void pango_cairo_glyph_string_path ()
void pango_cairo_layout_line_path ()
void pango_cairo_layout_path ()
void pango_cairo_error_underline_path ()

Types and Values

  PangoCairoFont
  PangoCairoFontMap

Object Hierarchy

    GInterface
    ├── PangoCairoFont
    ╰── PangoCairoFontMap

Prerequisites

PangoCairoFont requires PangoFont.

PangoCairoFontMap requires PangoFontMap.

Description

The Cairo library is a vector graphics library with a powerful rendering model. It has such features as anti-aliased primitives, alpha-compositing, and gradients. Multiple backends for Cairo are available, to allow rendering to images, to PDF files, and to the screen on X and on other windowing systems. The functions in this section allow using Pango to render to Cairo surfaces.

Using Pango with Cairo is straightforward. A PangoContext created with pango_cairo_font_map_create_context() can be used on any Cairo context (cairo_t), but needs to be updated to match the current transformation matrix and target surface of the Cairo context using pango_cairo_update_context(). The convenience functions pango_cairo_create_layout() and pango_cairo_update_layout() handle the common case where the program doesn't need to manipulate the properties of the PangoContext.

When you get the metrics of a layout or of a piece of a layout using functions such as pango_layout_get_extents(), the reported metrics are in user-space coordinates. If a piece of text is 10 units long, and you call cairo_scale (cr, 2.0), it still is more-or-less 10 units long. However, the results will be affected by hinting (that is, the process of adjusting the text to look good on the pixel grid), so you shouldn't assume they are completely independent of the current transformation matrix. Note that the basic metrics functions in Pango report results in integer Pango units. To get to the floating point units used in Cairo divide by PANGO_SCALE.

Using Pango with Cairo

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#include <math.h>
#include <pango/pangocairo.h>

static void
draw_text (cairo_t *cr)
{
#define RADIUS 150
#define N_WORDS 10
#define FONT "Sans Bold 27"

  PangoLayout *layout;
  PangoFontDescription *desc;
  int i;

  /* Center coordinates on the middle of the region we are drawing
   */
  cairo_translate (cr, RADIUS, RADIUS);

  /* Create a PangoLayout, set the font and text */
  layout = pango_cairo_create_layout (cr);

  pango_layout_set_text (layout, "Text", -1);
  desc = pango_font_description_from_string (FONT);
  pango_layout_set_font_description (layout, desc);
  pango_font_description_free (desc);

  /* Draw the layout N_WORDS times in a circle */
  for (i = 0; i < N_WORDS; i++)
    {
      int width, height;
      double angle = (360. * i) / N_WORDS;
      double red;

      cairo_save (cr);

      /* Gradient from red at angle == 60 to blue at angle == 240 */
      red   = (1 + cos ((angle - 60) * G_PI / 180.)) / 2;
      cairo_set_source_rgb (cr, red, 0, 1.0 - red);

      cairo_rotate (cr, angle * G_PI / 180.);

      /* Inform Pango to re-layout the text with the new transformation */
      pango_cairo_update_layout (cr, layout);

      pango_layout_get_size (layout, &width, &height);
      cairo_move_to (cr, - ((double)width / PANGO_SCALE) / 2, - RADIUS);
      pango_cairo_show_layout (cr, layout);

      cairo_restore (cr);
    }

  /* free the layout object */
  g_object_unref (layout);
}

int main (int argc, char **argv)
{
  cairo_t *cr;
  char *filename;
  cairo_status_t status;
  cairo_surface_t *surface;

  if (argc != 2)
    {
      g_printerr ("Usage: cairosimple OUTPUT_FILENAME\n");
      return 1;
    }

     filename = argv[1];

  surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
                                        2 * RADIUS, 2 * RADIUS);
  cr = cairo_create (surface);

  cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
  cairo_paint (cr);
  draw_text (cr);
  cairo_destroy (cr);

  status = cairo_surface_write_to_png (surface, filename);
  cairo_surface_destroy (surface);

  if (status != CAIRO_STATUS_SUCCESS)
    {
      g_printerr ("Could not save png to '%s'\n", filename);
      return 1;
    }

  return 0;
}

Once you build and run the example code above, you should see the following result:

Output of rotated-example

Functions

pango_cairo_font_map_get_default ()

PangoFontMap *
pango_cairo_font_map_get_default (void);

Gets a default PangoCairoFontMap to use with Cairo.

Note that the type of the returned object will depend on the particular font backend Cairo was compiled to use; You generally should only use the PangoFontMap and PangoCairoFontMap interfaces on the returned object.

The default Cairo fontmap can be changed by using pango_cairo_font_map_set_default(). This can be used to change the Cairo font backend that the default fontmap uses for example.

Note that since Pango 1.32.6, the default fontmap is per-thread. Each thread gets its own default fontmap. In this way, PangoCairo can be used safely from multiple threads.

Returns

the default PangoCairo fontmap for the current thread. This object is owned by Pango and must not be freed.

[transfer none]

Since: 1.10

pango_cairo_font_map_set_default ()

void
pango_cairo_font_map_set_default (PangoCairoFontMap *fontmap);

Sets a default PangoCairoFontMap to use with Cairo.

This can be used to change the Cairo font backend that the default fontmap uses for example. The old default font map is unreffed and the new font map referenced.

Note that since Pango 1.32.6, the default fontmap is per-thread. This function only changes the default fontmap for the current thread. Default fontmaps of existing threads are not changed. Default fontmaps of any new threads will still be created using pango_cairo_font_map_new().

A value of NULL for fontmap will cause the current default font map to be released and a new default font map to be created on demand, using pango_cairo_font_map_new().

Parameters

fontmap

The new default font map, or NULL.

[nullable]

Since: 1.22

pango_cairo_font_map_new ()

PangoFontMap *
pango_cairo_font_map_new (void);

Creates a new PangoCairoFontMap object; a fontmap is used to cache information about available fonts, and holds certain global parameters such as the resolution. In most cases, you can use pango_cairo_font_map_get_default() instead.

Note that the type of the returned object will depend on the particular font backend Cairo was compiled to use; You generally should only use the PangoFontMap and PangoCairoFontMap interfaces on the returned object.

You can override the type of backend returned by using an environment variable PANGOCAIRO_BACKEND. Supported types, based on your build, are fc (fontconfig), win32, and coretext. If requested type is not available, NULL is returned. Ie. this is only useful for testing, when at least two backends are compiled in.

Returns

the newly allocated PangoFontMap, which should be freed with g_object_unref().

[transfer full]

Since: 1.10

pango_cairo_font_map_new_for_font_type ()

PangoFontMap *
pango_cairo_font_map_new_for_font_type
                               (cairo_font_type_t fonttype);

Creates a new PangoCairoFontMap object of the type suitable to be used with cairo font backend of type fonttype .

In most cases one should simply use pango_cairo_font_map_new() , or in fact in most of those cases, just use pango_cairo_font_map_get_default() .

Parameters

fonttype

desired cairo_font_type_t

  

Returns

the newly allocated PangoFontMap of suitable type which should be freed with g_object_unref(), or NULL if the requested cairo font backend is not supported / compiled in.

[transfer full][nullable]

Since: 1.18

pango_cairo_font_map_get_font_type ()

cairo_font_type_t
pango_cairo_font_map_get_font_type (PangoCairoFontMap *fontmap);

Gets the type of Cairo font backend that fontmap uses.

Parameters

fontmap

a PangoCairoFontMap

  

Returns

the cairo_font_type_t cairo font backend type

Since: 1.18

pango_cairo_font_map_set_resolution ()

void
pango_cairo_font_map_set_resolution (PangoCairoFontMap *fontmap,
                                     double dpi);

Sets the resolution for the fontmap. This is a scale factor between points specified in a PangoFontDescription and Cairo units. The default value is 96, meaning that a 10 point font will be 13 units high. (10 * 96. / 72. = 13.3).

Parameters

fontmap

a PangoCairoFontMap

  

dpi

the resolution in "dots per inch". (Physical inches aren't actually involved; the terminology is conventional.)

  

Since: 1.10

pango_cairo_font_map_get_resolution ()

double
pango_cairo_font_map_get_resolution (PangoCairoFontMap *fontmap);

Gets the resolution for the fontmap. See pango_cairo_font_map_set_resolution()

Parameters

fontmap

a PangoCairoFontMap

  

Returns

the resolution in "dots per inch"

Since: 1.10

pango_cairo_font_map_create_context ()

PangoContext *
pango_cairo_font_map_create_context (PangoCairoFontMap *fontmap);

pango_cairo_font_map_create_context has been deprecated since version 1.22 and should not be used in newly-written code.

Use pango_font_map_create_context() instead.

Create a PangoContext for the given fontmap.

[skip]

Parameters

fontmap

a PangoCairoFontMap

  

Returns

the newly created context; free with g_object_unref().

Since: 1.10

pango_cairo_font_get_scaled_font ()

cairo_scaled_font_t *
pango_cairo_font_get_scaled_font (PangoCairoFont *font);

Gets the cairo_scaled_font_t used by font . The scaled font can be referenced and kept using cairo_scaled_font_reference().

Parameters

font

a PangoFont from a PangoCairoFontMap

  

Returns

the cairo_scaled_font_t used by font , or NULL if font is NULL.

[transfer none][nullable]

Since: 1.18

pango_cairo_context_set_resolution ()

void
pango_cairo_context_set_resolution (PangoContext *context,
                                    double dpi);

Sets the resolution for the context. This is a scale factor between points specified in a PangoFontDescription and Cairo units. The default value is 96, meaning that a 10 point font will be 13 units high. (10 * 96. / 72. = 13.3).

Parameters

context

a PangoContext, from a pangocairo font map

  

dpi

the resolution in "dots per inch". (Physical inches aren't actually involved; the terminology is conventional.) A 0 or negative value means to use the resolution from the font map.

  

Since: 1.10

pango_cairo_context_get_resolution ()

double
pango_cairo_context_get_resolution (PangoContext *context);

Gets the resolution for the context. See pango_cairo_context_set_resolution()

Parameters

context

a PangoContext, from a pangocairo font map

  

Returns

the resolution in "dots per inch". A negative value will be returned if no resolution has previously been set.

Since: 1.10

pango_cairo_context_set_font_options ()

void
pango_cairo_context_set_font_options (PangoContext *context,
                                      const cairo_font_options_t *options);

Sets the font options used when rendering text with this context. These options override any options that pango_cairo_update_context() derives from the target surface.

Parameters

context

a PangoContext, from a pangocairo font map

  

options

a cairo_font_options_t, or NULL to unset any previously set options. A copy is made.

[nullable]

Since: 1.10

pango_cairo_context_get_font_options ()

const cairo_font_options_t *
pango_cairo_context_get_font_options (PangoContext *context);

Retrieves any font rendering options previously set with pango_cairo_context_set_font_options(). This function does not report options that are derived from the target surface by pango_cairo_update_context()

Parameters

context

a PangoContext, from a pangocairo font map

  

Returns

the font options previously set on the context, or NULL if no options have been set. This value is owned by the context and must not be modified or freed.

[nullable]

Since: 1.10

PangoCairoShapeRendererFunc ()

void
(*PangoCairoShapeRendererFunc) (cairo_t *cr,
                                PangoAttrShape *attr,
                                gboolean do_path,
                                gpointer data);

Function type for rendering attributes of type PANGO_ATTR_SHAPE with Pango's Cairo renderer.

Parameters

cr

a Cairo context with current point set to where the shape should be rendered

  

attr

the PANGO_ATTR_SHAPE to render

  

do_path

whether only the shape path should be appended to current path of cr and no filling/stroking done. This will be set to TRUE when called from pango_cairo_layout_path() and pango_cairo_layout_line_path() rendering functions.

  

data

user data passed to pango_cairo_context_set_shape_renderer().

[closure]

pango_cairo_context_set_shape_renderer ()

void
pango_cairo_context_set_shape_renderer
                               (PangoContext *context,
                                PangoCairoShapeRendererFunc func,
                                gpointer data,
                                GDestroyNotify dnotify);

Sets callback function for context to use for rendering attributes of type PANGO_ATTR_SHAPE. See PangoCairoShapeRendererFunc for details.

Parameters

context

a PangoContext, from a pangocairo font map

  

func

Callback function for rendering attributes of type PANGO_ATTR_SHAPE, or NULL to disable shape rendering.

[nullable]

data

User data that will be passed to func .

  

dnotify

Callback that will be called when the context is freed to release data , or NULL.

  

Since: 1.18

pango_cairo_context_get_shape_renderer ()

PangoCairoShapeRendererFunc
pango_cairo_context_get_shape_renderer
                               (PangoContext *context,
                                gpointer *data);

Sets callback function for context to use for rendering attributes of type PANGO_ATTR_SHAPE. See PangoCairoShapeRendererFunc for details.

Retrieves callback function and associated user data for rendering attributes of type PANGO_ATTR_SHAPE as set by pango_cairo_context_set_shape_renderer(), if any.

[skip]

Parameters

context

a PangoContext, from a pangocairo font map

  

data

Pointer to gpointer to return user data

  

Returns

the shape rendering callback previously set on the context, or NULL if no shape rendering callback have been set.

[transfer none][nullable]

Since: 1.18

pango_cairo_create_context ()

PangoContext *
pango_cairo_create_context (cairo_t *cr);

Creates a context object set up to match the current transformation and target surface of the Cairo context. This context can then be used to create a layout using pango_layout_new().

This function is a convenience function that creates a context using the default font map, then updates it to cr . If you just need to create a layout for use with cr and do not need to access PangoContext directly, you can use pango_cairo_create_layout() instead.

Parameters

cr

a Cairo context

  

Returns

the newly created PangoContext. Free with g_object_unref().

[transfer full]

Since: 1.22

pango_cairo_update_context ()

void
pango_cairo_update_context (cairo_t *cr,
                            PangoContext *context);

Updates a PangoContext previously created for use with Cairo to match the current transformation and target surface of a Cairo context. If any layouts have been created for the context, it's necessary to call pango_layout_context_changed() on those layouts.

Parameters

cr

a Cairo context

  

context

a PangoContext, from a pangocairo font map

  

Since: 1.10

pango_cairo_create_layout ()

PangoLayout *
pango_cairo_create_layout (cairo_t *cr);

Creates a layout object set up to match the current transformation and target surface of the Cairo context. This layout can then be used for text measurement with functions like pango_layout_get_size() or drawing with functions like pango_cairo_show_layout(). If you change the transformation or target surface for cr , you need to call pango_cairo_update_layout()

This function is the most convenient way to use Cairo with Pango, however it is slightly inefficient since it creates a separate PangoContext object for each layout. This might matter in an application that was laying out large amounts of text.

Parameters

cr

a Cairo context

  

Returns

the newly created PangoLayout. Free with g_object_unref().

[transfer full]

Since: 1.10

pango_cairo_update_layout ()

void
pango_cairo_update_layout (cairo_t *cr,
                           PangoLayout *layout);

Updates the private PangoContext of a PangoLayout created with pango_cairo_create_layout() to match the current transformation and target surface of a Cairo context.

Parameters

cr

a Cairo context

  

layout

a PangoLayout, from pango_cairo_create_layout()

  

Since: 1.10

pango_cairo_show_glyph_string ()

void
pango_cairo_show_glyph_string (cairo_t *cr,
                               PangoFont *font,
                               PangoGlyphString *glyphs);

Draws the glyphs in glyphs in the specified cairo context. The origin of the glyphs (the left edge of the baseline) will be drawn at the current point of the cairo context.

Parameters

cr

a Cairo context

  

font

a PangoFont from a PangoCairoFontMap

  

glyphs

a PangoGlyphString

  

Since: 1.10

pango_cairo_show_glyph_item ()

void
pango_cairo_show_glyph_item (cairo_t *cr,
                             const char *text,
                             PangoGlyphItem *glyph_item);

Draws the glyphs in glyph_item in the specified cairo context, embedding the text associated with the glyphs in the output if the output format supports it (PDF for example), otherwise it acts similar to pango_cairo_show_glyph_string().

The origin of the glyphs (the left edge of the baseline) will be drawn at the current point of the cairo context.

Note that text is the start of the text for layout, which is then indexed by glyph_item->item->offset .

Parameters

cr

a Cairo context

  

text

the UTF-8 text that glyph_item refers to

  

glyph_item

a PangoGlyphItem

  

Since: 1.22

pango_cairo_show_layout_line ()

void
pango_cairo_show_layout_line (cairo_t *cr,
                              PangoLayoutLine *line);

Draws a PangoLayoutLine in the specified cairo context. The origin of the glyphs (the left edge of the line) will be drawn at the current point of the cairo context.

Parameters

cr

a Cairo context

  

line

a PangoLayoutLine

  

Since: 1.10

pango_cairo_show_layout ()

void
pango_cairo_show_layout (cairo_t *cr,
                         PangoLayout *layout);

Draws a PangoLayout in the specified cairo context. The top-left corner of the PangoLayout will be drawn at the current point of the cairo context.

Parameters

cr

a Cairo context

  

layout

a Pango layout

  

Since: 1.10

pango_cairo_show_error_underline ()

void
pango_cairo_show_error_underline (cairo_t *cr,
                                  double x,
                                  double y,
                                  double width,
                                  double height);

Draw a squiggly line in the specified cairo context that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle)

Parameters

cr

a Cairo context

  

x

The X coordinate of one corner of the rectangle

  

y

The Y coordinate of one corner of the rectangle

  

width

Non-negative width of the rectangle

  

height

Non-negative height of the rectangle

  

Since: 1.14

pango_cairo_glyph_string_path ()

void
pango_cairo_glyph_string_path (cairo_t *cr,
                               PangoFont *font,
                               PangoGlyphString *glyphs);

Adds the glyphs in glyphs to the current path in the specified cairo context. The origin of the glyphs (the left edge of the baseline) will be at the current point of the cairo context.

Parameters

cr

a Cairo context

  

font

a PangoFont from a PangoCairoFontMap

  

glyphs

a PangoGlyphString

  

Since: 1.10

pango_cairo_layout_line_path ()

void
pango_cairo_layout_line_path (cairo_t *cr,
                              PangoLayoutLine *line);

Adds the text in PangoLayoutLine to the current path in the specified cairo context. The origin of the glyphs (the left edge of the line) will be at the current point of the cairo context.

Parameters

cr

a Cairo context

  

line

a PangoLayoutLine

  

Since: 1.10

pango_cairo_layout_path ()

void
pango_cairo_layout_path (cairo_t *cr,
                         PangoLayout *layout);

Adds the text in a PangoLayout to the current path in the specified cairo context. The top-left corner of the PangoLayout will be at the current point of the cairo context.

Parameters

cr

a Cairo context

  

layout

a Pango layout

  

Since: 1.10

pango_cairo_error_underline_path ()

void
pango_cairo_error_underline_path (cairo_t *cr,
                                  double x,
                                  double y,
                                  double width,
                                  double height);

Add a squiggly line to the current path in the specified cairo context that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle)

Parameters

cr

a Cairo context

  

x

The X coordinate of one corner of the rectangle

  

y

The Y coordinate of one corner of the rectangle

  

width

Non-negative width of the rectangle

  

height

Non-negative height of the rectangle

  

Since: 1.14

Types and Values

PangoCairoFont

typedef struct _PangoCairoFont PangoCairoFont;

PangoCairoFont is an interface exported by fonts for use with Cairo. The actual type of the font will depend on the particular font technology Cairo was compiled to use.

Since: 1.18

PangoCairoFontMap

typedef struct _PangoCairoFontMap PangoCairoFontMap;

PangoCairoFontMap is an interface exported by font maps for use with Cairo. The actual type of the font map will depend on the particular font technology Cairo was compiled to use.

Since: 1.10

Generated by GTK-Doc V1.33.0
docs/html/pango-FreeType-Fonts-and-Rendering.html0000664000175000017500000014643514002404370022066 0ustar mclasenmclasen FreeType Fonts and Rendering: Pango Reference Manual

FreeType Fonts and Rendering

FreeType Fonts and Rendering — Font handling and rendering with FreeType

Functions

PangoFontMap * pango_ft2_font_map_new ()
void pango_ft2_font_map_set_resolution ()
PangoContext * pango_ft2_font_map_create_context ()
void (*PangoFT2SubstituteFunc) ()
void pango_ft2_font_map_set_default_substitute ()
void pango_ft2_font_map_substitute_changed ()
PangoContext * pango_ft2_get_context ()
void pango_ft2_render ()
void pango_ft2_render_transformed ()
void pango_ft2_render_layout_line ()
void pango_ft2_render_layout_line_subpixel ()
void pango_ft2_render_layout ()
void pango_ft2_render_layout_subpixel ()
PangoGlyph pango_ft2_get_unknown_glyph ()
int pango_ft2_font_get_kerning ()
FT_Face pango_ft2_font_get_face ()
PangoCoverage * pango_ft2_font_get_coverage ()
PangoFontMap * pango_ft2_font_map_for_display ()
void pango_ft2_shutdown_display ()

Types and Values

  PangoFT2FontMap

Object Hierarchy

    GObject
    ╰── PangoFontMap
        ╰── PangoFcFontMap
            ╰── PangoFT2FontMap

Implemented Interfaces

PangoFT2FontMap implements GListModel.

Description

The macros and functions in this section are used to access fonts and render text to bitmaps using the FreeType 2 library.

Functions

pango_ft2_font_map_new ()

PangoFontMap *
pango_ft2_font_map_new (void);

Create a new PangoFT2FontMap object; a fontmap is used to cache information about available fonts, and holds certain global parameters such as the resolution and the default substitute function (see pango_ft2_font_map_set_default_substitute()).

Returns

the newly created fontmap object. Unref with g_object_unref() when you are finished with it.

Since: 1.2

pango_ft2_font_map_set_resolution ()

void
pango_ft2_font_map_set_resolution (PangoFT2FontMap *fontmap,
                                   double dpi_x,
                                   double dpi_y);

Sets the horizontal and vertical resolutions for the fontmap.

Parameters

fontmap

a PangoFT2FontMap

  

dpi_x

dots per inch in the X direction

  

dpi_y

dots per inch in the Y direction

  

Since: 1.2

pango_ft2_font_map_create_context ()

PangoContext *
pango_ft2_font_map_create_context (PangoFT2FontMap *fontmap);

pango_ft2_font_map_create_context has been deprecated since version 1.22 and should not be used in newly-written code.

Use pango_font_map_create_context() instead.

Create a PangoContext for the given fontmap.

[skip]

Parameters

fontmap

a PangoFT2FontMap

  

Returns

the newly created context; free with g_object_unref().

[transfer full]

Since: 1.2

PangoFT2SubstituteFunc ()

void
(*PangoFT2SubstituteFunc) (FcPattern *pattern,
                           gpointer data);

Function type for doing final config tweaking on prepared FcPatterns.

Parameters

pattern

the FcPattern to tweak.

  

data

user data.

  

pango_ft2_font_map_set_default_substitute ()

void
pango_ft2_font_map_set_default_substitute
                               (PangoFT2FontMap *fontmap,
                                PangoFT2SubstituteFunc func,
                                gpointer data,
                                GDestroyNotify notify);

pango_ft2_font_map_set_default_substitute has been deprecated since version 1.46 and should not be used in newly-written code.

Use pango_fc_font_map_set_default_substitute() instead.

Sets a function that will be called to do final configuration substitution on a FcPattern before it is used to load the font. This function can be used to do things like set hinting and antialiasing options.

Parameters

fontmap

a PangoFT2FontMap

  

func

function to call to to do final config tweaking on FcPattern objects.

  

data

data to pass to func

 

notify

function to call when data is no longer used.

  

Since: 1.2

pango_ft2_font_map_substitute_changed ()

void
pango_ft2_font_map_substitute_changed (PangoFT2FontMap *fontmap);

pango_ft2_font_map_substitute_changed has been deprecated since version 1.46 and should not be used in newly-written code.

Use pango_fc_font_map_substitute_changed() instead.

Call this function any time the results of the default substitution function set with pango_ft2_font_map_set_default_substitute() change. That is, if your substitution function will return different results for the same input pattern, you must call this function.

Parameters

fontmap

a PangoFT2FontMap

  

Since: 1.2

pango_ft2_get_context ()

PangoContext *
pango_ft2_get_context (double dpi_x,
                       double dpi_y);

pango_ft2_get_context has been deprecated since version 1.22 and should not be used in newly-written code.

Use pango_font_map_create_context() instead.

Retrieves a PangoContext for the default PangoFT2 fontmap (see pango_ft2_font_map_for_display()) and sets the resolution for the default fontmap to dpi_x by dpi_y .

[skip]

Parameters

dpi_x

the horizontal DPI of the target device

  

dpi_y

the vertical DPI of the target device

  

Returns

the new PangoContext.

[transfer full]

pango_ft2_render ()

void
pango_ft2_render (FT_Bitmap *bitmap,
                  PangoFont *font,
                  PangoGlyphString *glyphs,
                  gint x,
                  gint y);

Renders a PangoGlyphString onto a FreeType2 bitmap.

Parameters

bitmap

the FreeType2 bitmap onto which to draw the string

  

font

the font in which to draw the string

  

glyphs

the glyph string to draw

  

x

the x position of the start of the string (in pixels)

  

y

the y position of the baseline (in pixels)

  

pango_ft2_render_transformed ()

void
pango_ft2_render_transformed (FT_Bitmap *bitmap,
                              const PangoMatrix *matrix,
                              PangoFont *font,
                              PangoGlyphString *glyphs,
                              int x,
                              int y);

Renders a PangoGlyphString onto a FreeType2 bitmap, possibly transforming the layed-out coordinates through a transformation matrix. Note that the transformation matrix for font is not changed, so to produce correct rendering results, the font must have been loaded using a PangoContext with an identical transformation matrix to that passed in to this function.

Parameters

bitmap

the FreeType2 bitmap onto which to draw the string

  

font

the font in which to draw the string

  

matrix

a PangoMatrix, or NULL to use an identity transformation.

[nullable]

glyphs

the glyph string to draw

  

x

the x position of the start of the string (in Pango units in user space coordinates)

  

y

the y position of the baseline (in Pango units in user space coordinates)

  

Since: 1.6

pango_ft2_render_layout_line ()

void
pango_ft2_render_layout_line (FT_Bitmap *bitmap,
                              PangoLayoutLine *line,
                              int x,
                              int y);

Render a PangoLayoutLine onto a FreeType2 bitmap

Parameters

bitmap

a FT_Bitmap to render the line onto

  

line

a PangoLayoutLine

  

x

the x position of start of string (in pixels)

  

y

the y position of baseline (in pixels)

  

pango_ft2_render_layout_line_subpixel ()

void
pango_ft2_render_layout_line_subpixel (FT_Bitmap *bitmap,
                                       PangoLayoutLine *line,
                                       int x,
                                       int y);

Render a PangoLayoutLine onto a FreeType2 bitmap, with he location specified in fixed-point Pango units rather than pixels. (Using this will avoid extra inaccuracies from rounding to integer pixels multiple times, even if the final glyph positions are integers.)

Parameters

bitmap

a FT_Bitmap to render the line onto

  

line

a PangoLayoutLine

  

x

the x position of start of string (in Pango units)

  

y

the y position of baseline (in Pango units)

  

Since: 1.6

pango_ft2_render_layout ()

void
pango_ft2_render_layout (FT_Bitmap *bitmap,
                         PangoLayout *layout,
                         int x,
                         int y);

Render a PangoLayout onto a FreeType2 bitmap

Parameters

bitmap

a FT_Bitmap to render the layout onto

  

layout

a PangoLayout

  

x

the X position of the left of the layout (in pixels)

  

y

the Y position of the top of the layout (in pixels)

  

pango_ft2_render_layout_subpixel ()

void
pango_ft2_render_layout_subpixel (FT_Bitmap *bitmap,
                                  PangoLayout *layout,
                                  int x,
                                  int y);

Render a PangoLayout onto a FreeType2 bitmap, with he location specified in fixed-point Pango units rather than pixels. (Using this will avoid extra inaccuracies from rounding to integer pixels multiple times, even if the final glyph positions are integers.)

Parameters

bitmap

a FT_Bitmap to render the layout onto

  

layout

a PangoLayout

  

x

the X position of the left of the layout (in Pango units)

  

y

the Y position of the top of the layout (in Pango units)

  

Since: 1.6

pango_ft2_get_unknown_glyph ()

PangoGlyph
pango_ft2_get_unknown_glyph (PangoFont *font);

pango_ft2_get_unknown_glyph is deprecated and should not be used in newly-written code.

Return the index of a glyph suitable for drawing unknown characters with font , or PANGO_GLYPH_EMPTY if no suitable glyph found.

If you want to draw an unknown-box for a character that is not covered by the font, use PANGO_GET_UNKNOWN_GLYPH() instead.

Parameters

font

a PangoFont

  

Returns

a glyph index into font , or PANGO_GLYPH_EMPTY

pango_ft2_font_get_kerning ()

int
pango_ft2_font_get_kerning (PangoFont *font,
                            PangoGlyph left,
                            PangoGlyph right);

pango_ft2_font_get_kerning is deprecated and should not be used in newly-written code.

Retrieves kerning information for a combination of two glyphs.

Use pango_fc_font_kern_glyphs() instead.

Parameters

font

a PangoFont

  

left

the left PangoGlyph

  

right

the right PangoGlyph

  

Returns

The amount of kerning (in Pango units) to apply for the given combination of glyphs.

pango_ft2_font_get_face ()

FT_Face
pango_ft2_font_get_face (PangoFont *font);

pango_ft2_font_get_face is deprecated and should not be used in newly-written code.

Returns the native FreeType2 FT_Face structure used for this PangoFont. This may be useful if you want to use FreeType2 functions directly.

Use pango_fc_font_lock_face() instead; when you are done with a face from pango_fc_font_lock_face() you must call pango_fc_font_unlock_face().

[skip]

Parameters

font

a PangoFont

  

Returns

a pointer to a FT_Face structure, with the size set correctly, or NULL if font is NULL.

[nullable]

pango_ft2_font_get_coverage ()

PangoCoverage *
pango_ft2_font_get_coverage (PangoFont *font,
                             PangoLanguage *language);

pango_ft2_font_get_coverage is deprecated and should not be used in newly-written code.

Gets the PangoCoverage for a PangoFT2Font. Use pango_font_get_coverage() instead.

Parameters

font

a Pango FT2 font

  

language

a language tag.

  

Returns

a PangoCoverage.

[transfer full]

pango_ft2_font_map_for_display ()

PangoFontMap *
pango_ft2_font_map_for_display (void);

pango_ft2_font_map_for_display is deprecated and should not be used in newly-written code.

Returns a PangoFT2FontMap. This font map is cached and should not be freed. If the font map is no longer needed, it can be released with pango_ft2_shutdown_display(). Use of the global PangoFT2 fontmap is deprecated; use pango_ft2_font_map_new() instead.

[skip]

Returns

a PangoFT2FontMap.

[transfer none]

pango_ft2_shutdown_display ()

void
pango_ft2_shutdown_display (void);

pango_ft2_shutdown_display is deprecated and should not be used in newly-written code.

Free the global fontmap. (See pango_ft2_font_map_for_display()) Use of the global PangoFT2 fontmap is deprecated.

Types and Values

PangoFT2FontMap

typedef struct _PangoFT2FontMap PangoFT2FontMap;

The PangoFT2FontMap is the PangoFontMap implementation for FreeType fonts.

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docs/html/pango-Glyph-Storage.html0000664000175000017500000042734514002404370017270 0ustar mclasenmclasen Glyphs: Pango Reference Manual

Glyphs

Glyphs — Structures for storing information about glyphs

Functions

#define PANGO_PIXELS()
#define PANGO_PIXELS_FLOOR()
#define PANGO_PIXELS_CEIL()
#define PANGO_UNITS_ROUND()
double pango_units_to_double ()
int pango_units_from_double ()
#define PANGO_ASCENT()
#define PANGO_DESCENT()
#define PANGO_LBEARING()
#define PANGO_RBEARING()
void pango_extents_to_pixels ()
PangoMatrix * pango_matrix_copy ()
void pango_matrix_free ()
void pango_matrix_translate ()
void pango_matrix_scale ()
void pango_matrix_rotate ()
void pango_matrix_concat ()
void pango_matrix_transform_point ()
void pango_matrix_transform_distance ()
void pango_matrix_transform_rectangle ()
void pango_matrix_transform_pixel_rectangle ()
double pango_matrix_get_font_scale_factor ()
void pango_matrix_get_font_scale_factors ()
#define PANGO_GET_UNKNOWN_GLYPH()
PangoGlyphString * pango_glyph_string_new ()
PangoGlyphString * pango_glyph_string_copy ()
void pango_glyph_string_set_size ()
void pango_glyph_string_free ()
void pango_glyph_string_extents ()
void pango_glyph_string_extents_range ()
int pango_glyph_string_get_width ()
void pango_glyph_string_index_to_x ()
void pango_glyph_string_x_to_index ()
void pango_glyph_string_get_logical_widths ()
PangoGlyphItem * pango_glyph_item_copy ()
void pango_glyph_item_free ()
PangoGlyphItem * pango_glyph_item_split ()
GSList * pango_glyph_item_apply_attrs ()
void pango_glyph_item_letter_space ()
void pango_glyph_item_get_logical_widths ()
PangoGlyphItemIter * pango_glyph_item_iter_copy ()
void pango_glyph_item_iter_free ()
gboolean pango_glyph_item_iter_init_start ()
gboolean pango_glyph_item_iter_init_end ()
gboolean pango_glyph_item_iter_next_cluster ()
gboolean pango_glyph_item_iter_prev_cluster ()

Types and Values

#define PANGO_SCALE
struct PangoRectangle
struct PangoMatrix
#define PANGO_MATRIX_INIT
typedef PangoGlyph
#define PANGO_GLYPH_EMPTY
#define PANGO_GLYPH_INVALID_INPUT
#define PANGO_GLYPH_UNKNOWN_FLAG
struct PangoGlyphInfo
struct PangoGlyphGeometry
typedef PangoGlyphUnit
struct PangoGlyphVisAttr
struct PangoGlyphString
struct PangoGlyphItem
struct PangoGlyphItemIter
#define PANGO_TYPE_GLYPH_STRING

Object Hierarchy

    GBoxed
    ├── PangoGlyphItem
    ├── PangoGlyphItemIter
    ├── PangoGlyphString
    ╰── PangoMatrix

Description

pango_shape() produces a string of glyphs which can be measured or drawn to the screen. The following structures are used to store information about glyphs.

Functions

PANGO_PIXELS()

#define PANGO_PIXELS(d) (((int)(d) + 512) >> 10)

Converts a dimension to device units by rounding.

Parameters

d

a dimension in Pango units.

  

Returns

rounded dimension in device units.

PANGO_PIXELS_FLOOR()

#define PANGO_PIXELS_FLOOR(d) (((int)(d)) >> 10)

Converts a dimension to device units by flooring.

Parameters

d

a dimension in Pango units.

  

Returns

floored dimension in device units.

Since: 1.14

PANGO_PIXELS_CEIL()

#define PANGO_PIXELS_CEIL(d) (((int)(d) + 1023) >> 10)

Converts a dimension to device units by ceiling.

Parameters

d

a dimension in Pango units.

  

Returns

ceiled dimension in device units.

Since: 1.14

PANGO_UNITS_ROUND()

#define             PANGO_UNITS_ROUND(d)

Rounds a dimension to whole device units, but does not convert it to device units.

Parameters

d

a dimension in Pango units.

  

Returns

rounded dimension in Pango units.

Since: 1.18

pango_units_to_double ()

double
pango_units_to_double (int i);

Converts a number in Pango units to floating-point: divides it by PANGO_SCALE.

Parameters

i

value in Pango units

  

Returns

the double value.

Since: 1.16

pango_units_from_double ()

int
pango_units_from_double (double d);

Converts a floating-point number to Pango units: multiplies it by PANGO_SCALE and rounds to nearest integer.

Parameters

d

double floating-point value

  

Returns

the value in Pango units.

Since: 1.16

PANGO_ASCENT()

#define PANGO_ASCENT(rect) (-(rect).y)

Extracts the ascent from a PangoRectangle representing glyph extents. The ascent is the distance from the baseline to the highest point of the character. This is positive if the glyph ascends above the baseline.

Parameters

rect

a PangoRectangle

  

PANGO_DESCENT()

#define PANGO_DESCENT(rect) ((rect).y + (rect).height)

Extracts the descent from a PangoRectangle representing glyph extents. The descent is the distance from the baseline to the lowest point of the character. This is positive if the glyph descends below the baseline.

Parameters

rect

a PangoRectangle

  

PANGO_LBEARING()

#define PANGO_LBEARING(rect) ((rect).x)

Extracts the left bearing from a PangoRectangle representing glyph extents. The left bearing is the distance from the horizontal origin to the farthest left point of the character. This is positive for characters drawn completely to the right of the glyph origin.

Parameters

rect

a PangoRectangle

  

PANGO_RBEARING()

#define PANGO_RBEARING(rect) ((rect).x + (rect).width)

Extracts the right bearing from a PangoRectangle representing glyph extents. The right bearing is the distance from the horizontal origin to the farthest right point of the character. This is positive except for characters drawn completely to the left of the horizontal origin.

Parameters

rect

a PangoRectangle

  

pango_extents_to_pixels ()

void
pango_extents_to_pixels (PangoRectangle *inclusive,
                         PangoRectangle *nearest);

Converts extents from Pango units to device units, dividing by the PANGO_SCALE factor and performing rounding.

The inclusive rectangle is converted by flooring the x/y coordinates and extending width/height, such that the final rectangle completely includes the original rectangle.

The nearest rectangle is converted by rounding the coordinates of the rectangle to the nearest device unit (pixel).

The rule to which argument to use is: if you want the resulting device-space rectangle to completely contain the original rectangle, pass it in as inclusive . If you want two touching-but-not-overlapping rectangles stay touching-but-not-overlapping after rounding to device units, pass them in as nearest .

Parameters

inclusive

rectangle to round to pixels inclusively, or NULL.

[allow-none]

nearest

rectangle to round to nearest pixels, or NULL.

[allow-none]

Since: 1.16

pango_matrix_copy ()

PangoMatrix *
pango_matrix_copy (const PangoMatrix *matrix);

Copies a PangoMatrix.

Parameters

matrix

a PangoMatrix, may be NULL.

[nullable]

Returns

the newly allocated PangoMatrix, which should be freed with pango_matrix_free(), or NULL if matrix was NULL.

[nullable]

Since: 1.6

pango_matrix_free ()

void
pango_matrix_free (PangoMatrix *matrix);

Free a PangoMatrix created with pango_matrix_copy().

Parameters

matrix

a PangoMatrix, may be NULL.

[nullable]

Since: 1.6

pango_matrix_translate ()

void
pango_matrix_translate (PangoMatrix *matrix,
                        double tx,
                        double ty);

Changes the transformation represented by matrix to be the transformation given by first translating by (tx , ty ) then applying the original transformation.

Parameters

matrix

a PangoMatrix

  

tx

amount to translate in the X direction

  

ty

amount to translate in the Y direction

  

Since: 1.6

pango_matrix_scale ()

void
pango_matrix_scale (PangoMatrix *matrix,
                    double scale_x,
                    double scale_y);

Changes the transformation represented by matrix to be the transformation given by first scaling by sx in the X direction and sy in the Y direction then applying the original transformation.

Parameters

matrix

a PangoMatrix

  

scale_x

amount to scale by in X direction

  

scale_y

amount to scale by in Y direction

  

Since: 1.6

pango_matrix_rotate ()

void
pango_matrix_rotate (PangoMatrix *matrix,
                     double degrees);

Changes the transformation represented by matrix to be the transformation given by first rotating by degrees degrees counter-clockwise then applying the original transformation.

Parameters

matrix

a PangoMatrix

  

degrees

degrees to rotate counter-clockwise

  

Since: 1.6

pango_matrix_concat ()

void
pango_matrix_concat (PangoMatrix *matrix,
                     const PangoMatrix *new_matrix);

Changes the transformation represented by matrix to be the transformation given by first applying transformation given by new_matrix then applying the original transformation.

Parameters

matrix

a PangoMatrix

  

new_matrix

a PangoMatrix

  

Since: 1.6

pango_matrix_transform_point ()

void
pango_matrix_transform_point (const PangoMatrix *matrix,
                              double *x,
                              double *y);

Transforms the point (x , y ) by matrix .

Parameters

matrix

a PangoMatrix, or NULL.

[nullable]

x

in/out X position.

[inout]

y

in/out Y position.

[inout]

Since: 1.16

pango_matrix_transform_distance ()

void
pango_matrix_transform_distance (const PangoMatrix *matrix,
                                 double *dx,
                                 double *dy);

Transforms the distance vector (dx ,dy ) by matrix . This is similar to pango_matrix_transform_point() except that the translation components of the transformation are ignored. The calculation of the returned vector is as follows:

dx2 = dx1 * xx + dy1 * xy;
dy2 = dx1 * yx + dy1 * yy;

Affine transformations are position invariant, so the same vector always transforms to the same vector. If (x1 ,y1 ) transforms to (x2 ,y2 ) then (x1 +dx1 ,y1 +dy1 ) will transform to (x1 +dx2 ,y1 +dy2 ) for all values of x1 and x2 .

Parameters

matrix

a PangoMatrix, or NULL.

[nullable]

dx

in/out X component of a distance vector.

[inout]

dy

in/out Y component of a distance vector.

[inout]

Since: 1.16

pango_matrix_transform_rectangle ()

void
pango_matrix_transform_rectangle (const PangoMatrix *matrix,
                                  PangoRectangle *rect);

First transforms rect using matrix , then calculates the bounding box of the transformed rectangle. The rectangle should be in Pango units.

This function is useful for example when you want to draw a rotated PangoLayout to an image buffer, and want to know how large the image should be and how much you should shift the layout when rendering.

If you have a rectangle in device units (pixels), use pango_matrix_transform_pixel_rectangle().

If you have the rectangle in Pango units and want to convert to transformed pixel bounding box, it is more accurate to transform it first (using this function) and pass the result to pango_extents_to_pixels(), first argument, for an inclusive rounded rectangle. However, there are valid reasons that you may want to convert to pixels first and then transform, for example when the transformed coordinates may overflow in Pango units (large matrix translation for example).

Parameters

matrix

a PangoMatrix, or NULL.

[nullable]

rect

in/out bounding box in Pango units, or NULL.

[inout][allow-none]

Since: 1.16

pango_matrix_transform_pixel_rectangle ()

void
pango_matrix_transform_pixel_rectangle
                               (const PangoMatrix *matrix,
                                PangoRectangle *rect);

First transforms the rect using matrix , then calculates the bounding box of the transformed rectangle. The rectangle should be in device units (pixels).

This function is useful for example when you want to draw a rotated PangoLayout to an image buffer, and want to know how large the image should be and how much you should shift the layout when rendering.

For better accuracy, you should use pango_matrix_transform_rectangle() on original rectangle in Pango units and convert to pixels afterward using pango_extents_to_pixels()'s first argument.

Parameters

matrix

a PangoMatrix, or NULL.

[nullable]

rect

in/out bounding box in device units, or NULL.

[inout][allow-none]

Since: 1.16

pango_matrix_get_font_scale_factor ()

double
pango_matrix_get_font_scale_factor (const PangoMatrix *matrix);

Returns the scale factor of a matrix on the height of the font. That is, the scale factor in the direction perpendicular to the vector that the X coordinate is mapped to. If the scale in the X coordinate is needed as well, use pango_matrix_get_font_scale_factors().

Parameters

matrix

a PangoMatrix, may be NULL.

[allow-none]

Returns

the scale factor of matrix on the height of the font, or 1.0 if matrix is NULL.

Since: 1.12

pango_matrix_get_font_scale_factors ()

void
pango_matrix_get_font_scale_factors (const PangoMatrix *matrix,
                                     double *xscale,
                                     double *yscale);

Calculates the scale factor of a matrix on the width and height of the font. That is, xscale is the scale factor in the direction of the X coordinate, and yscale is the scale factor in the direction perpendicular to the vector that the X coordinate is mapped to.

Note that output numbers will always be non-negative.

Parameters

matrix

a PangoMatrix, or NULL.

[nullable]

xscale

output scale factor in the x direction, or NULL.

[out][allow-none]

yscale

output scale factor perpendicular to the x direction, or NULL.

[out][allow-none]

Since: 1.38

PANGO_GET_UNKNOWN_GLYPH()

#define PANGO_GET_UNKNOWN_GLYPH(wc) ((PangoGlyph)(wc)|PANGO_GLYPH_UNKNOWN_FLAG)

The way this unknown glyphs are rendered is backend specific. For example, a box with the hexadecimal Unicode code-point of the character written in it is what is done in the most common backends.

Parameters

wc

a Unicode character

  

Returns

a PangoGlyph value that means no glyph was found for wc .

pango_glyph_string_new ()

PangoGlyphString *
pango_glyph_string_new (void);

Create a new PangoGlyphString.

Returns

the newly allocated PangoGlyphString, which should be freed with pango_glyph_string_free().

pango_glyph_string_copy ()

PangoGlyphString *
pango_glyph_string_copy (PangoGlyphString *string);

Copy a glyph string and associated storage.

Parameters

string

a PangoGlyphString, may be NULL.

[nullable]

Returns

the newly allocated PangoGlyphString, which should be freed with pango_glyph_string_free(), or NULL if string was NULL.

[nullable]

pango_glyph_string_set_size ()

void
pango_glyph_string_set_size (PangoGlyphString *string,
                             gint new_len);

Resize a glyph string to the given length.

Parameters

string

a PangoGlyphString.

  

new_len

the new length of the string.

  

pango_glyph_string_free ()

void
pango_glyph_string_free (PangoGlyphString *string);

Free a glyph string and associated storage.

Parameters

string

a PangoGlyphString, may be NULL.

[nullable]

pango_glyph_string_extents ()

void
pango_glyph_string_extents (PangoGlyphString *glyphs,
                            PangoFont *font,
                            PangoRectangle *ink_rect,
                            PangoRectangle *logical_rect);

Compute the logical and ink extents of a glyph string. See the documentation for pango_font_get_glyph_extents() for details about the interpretation of the rectangles.

Examples of logical (red) and ink (green) rects:

Parameters

glyphs

a PangoGlyphString

  

font

a PangoFont

  

ink_rect

rectangle used to store the extents of the glyph string as drawn or NULL to indicate that the result is not needed.

[out][allow-none]

logical_rect

rectangle used to store the logical extents of the glyph string or NULL to indicate that the result is not needed.

[out][allow-none]

pango_glyph_string_extents_range ()

void
pango_glyph_string_extents_range (PangoGlyphString *glyphs,
                                  int start,
                                  int end,
                                  PangoFont *font,
                                  PangoRectangle *ink_rect,
                                  PangoRectangle *logical_rect);

Computes the extents of a sub-portion of a glyph string. The extents are relative to the start of the glyph string range (the origin of their coordinate system is at the start of the range, not at the start of the entire glyph string).

Parameters

glyphs

a PangoGlyphString

  

start

start index

  

end

end index (the range is the set of bytes with indices such that start <= index < end)

  

font

a PangoFont

  

ink_rect

rectangle used to store the extents of the glyph string range as drawn or NULL to indicate that the result is not needed.

[out caller-allocates][optional]

logical_rect

rectangle used to store the logical extents of the glyph string range or NULL to indicate that the result is not needed.

[out caller-allocates][optional]

pango_glyph_string_get_width ()

int
pango_glyph_string_get_width (PangoGlyphString *glyphs);

Computes the logical width of the glyph string as can also be computed using pango_glyph_string_extents(). However, since this only computes the width, it's much faster. This is in fact only a convenience function that computes the sum of geometry.width for each glyph in the glyphs .

Parameters

glyphs

a PangoGlyphString

  

Returns

the logical width of the glyph string.

Since: 1.14

pango_glyph_string_index_to_x ()

void
pango_glyph_string_index_to_x (PangoGlyphString *glyphs,
                               char *text,
                               int length,
                               PangoAnalysis *analysis,
                               int index_,
                               gboolean trailing,
                               int *x_pos);

Converts from character position to x position. (X position is measured from the left edge of the run). Character positions are computed by dividing up each cluster into equal portions.

Parameters

glyphs

the glyphs return from pango_shape()

  

text

the text for the run

  

length

the number of bytes (not characters) in text .

  

analysis

the analysis information return from pango_itemize()

  

index_

the byte index within text

 

trailing

whether we should compute the result for the beginning (FALSE) or end (TRUE) of the character.

  

x_pos

location to store result.

[out]

pango_glyph_string_x_to_index ()

void
pango_glyph_string_x_to_index (PangoGlyphString *glyphs,
                               char *text,
                               int length,
                               PangoAnalysis *analysis,
                               int x_pos,
                               int *index_,
                               int *trailing);

Convert from x offset to character position. Character positions are computed by dividing up each cluster into equal portions. In scripts where positioning within a cluster is not allowed (such as Thai), the returned value may not be a valid cursor position; the caller must combine the result with the logical attributes for the text to compute the valid cursor position.

Parameters

glyphs

the glyphs returned from pango_shape()

  

text

the text for the run

  

length

the number of bytes (not characters) in text.

  

analysis

the analysis information return from pango_itemize()

  

x_pos

the x offset (in Pango units)

  

index_

location to store calculated byte index within text .

[out]

trailing

location to store a boolean indicating whether the user clicked on the leading or trailing edge of the character.

[out]

pango_glyph_string_get_logical_widths ()

void
pango_glyph_string_get_logical_widths (PangoGlyphString *glyphs,
                                       const char *text,
                                       int length,
                                       int embedding_level,
                                       int *logical_widths);

Given a PangoGlyphString resulting from pango_shape() and the corresponding text, determine the screen width corresponding to each character. When multiple characters compose a single cluster, the width of the entire cluster is divided equally among the characters.

See also pango_glyph_item_get_logical_widths().

Parameters

glyphs

a PangoGlyphString

  

text

the text corresponding to the glyphs

  

length

the length of text , in bytes

  

embedding_level

the embedding level of the string

  

logical_widths

an array whose length is the number of characters in text (equal to g_utf8_strlen (text, length) unless text has NUL bytes) to be filled in with the resulting character widths.

[array]

pango_glyph_item_copy ()

PangoGlyphItem *
pango_glyph_item_copy (PangoGlyphItem *orig);

Make a deep copy of an existing PangoGlyphItem structure.

Parameters

orig

a PangoGlyphItem, may be NULL.

[nullable]

Returns

the newly allocated PangoGlyphItem, which should be freed with pango_glyph_item_free(), or NULL if orig was NULL.

[nullable]

Since: 1.20

pango_glyph_item_free ()

void
pango_glyph_item_free (PangoGlyphItem *glyph_item);

Frees a PangoGlyphItem and resources to which it points.

Parameters

glyph_item

a PangoGlyphItem, may be NULL.

[nullable]

Since: 1.6

pango_glyph_item_split ()

PangoGlyphItem *
pango_glyph_item_split (PangoGlyphItem *orig,
                        const char *text,
                        int split_index);

Modifies orig to cover only the text after split_index , and returns a new item that covers the text before split_index that used to be in orig . You can think of split_index as the length of the returned item. split_index may not be 0, and it may not be greater than or equal to the length of orig (that is, there must be at least one byte assigned to each item, you can't create a zero-length item).

This function is similar in function to pango_item_split() (and uses it internally.)

Parameters

orig

a PangoItem

  

text

text to which positions in orig apply

  

split_index

byte index of position to split item, relative to the start of the item

  

Returns

the newly allocated item representing text before split_index , which should be freed with pango_glyph_item_free().

Since: 1.2

pango_glyph_item_apply_attrs ()

GSList *
pango_glyph_item_apply_attrs (PangoGlyphItem *glyph_item,
                              const char *text,
                              PangoAttrList *list);

Splits a shaped item (PangoGlyphItem) into multiple items based on an attribute list. The idea is that if you have attributes that don't affect shaping, such as color or underline, to avoid affecting shaping, you filter them out (pango_attr_list_filter()), apply the shaping process and then reapply them to the result using this function.

All attributes that start or end inside a cluster are applied to that cluster; for instance, if half of a cluster is underlined and the other-half strikethrough, then the cluster will end up with both underline and strikethrough attributes. In these cases, it may happen that item->extra_attrs for some of the result items can have multiple attributes of the same type.

This function takes ownership of glyph_item ; it will be reused as one of the elements in the list.

Parameters

glyph_item

a shaped item

  

text

text that list applies to

  

list

a PangoAttrList

  

Returns

a list of glyph items resulting from splitting glyph_item . Free the elements using pango_glyph_item_free(), the list using g_slist_free().

[transfer full][element-type Pango.GlyphItem]

Since: 1.2

pango_glyph_item_letter_space ()

void
pango_glyph_item_letter_space (PangoGlyphItem *glyph_item,
                               const char *text,
                               PangoLogAttr *log_attrs,
                               int letter_spacing);

Adds spacing between the graphemes of glyph_item to give the effect of typographic letter spacing.

Parameters

glyph_item

a PangoGlyphItem

  

text

text that glyph_item corresponds to (glyph_item->item->offset is an offset from the start of text )

  

log_attrs

logical attributes for the item (the first logical attribute refers to the position before the first character in the item).

[array]

letter_spacing

amount of letter spacing to add in Pango units. May be negative, though too large negative values will give ugly results.

  

Since: 1.6

pango_glyph_item_get_logical_widths ()

void
pango_glyph_item_get_logical_widths (PangoGlyphItem *glyph_item,
                                     const char *text,
                                     int *logical_widths);

Given a PangoGlyphItem and the corresponding text, determine the screen width corresponding to each character. When multiple characters compose a single cluster, the width of the entire cluster is divided equally among the characters.

See also pango_glyph_string_get_logical_widths().

Parameters

glyph_item

a PangoGlyphItem

  

text

text that glyph_item corresponds to (glyph_item->item->offset is an offset from the start of text )

  

logical_widths

an array whose length is the number of characters in glyph_item (equal to glyph_item->item->num_chars) to be filled in with the resulting character widths.

[array]

Since: 1.26

pango_glyph_item_iter_copy ()

PangoGlyphItemIter *
pango_glyph_item_iter_copy (PangoGlyphItemIter *orig);

Make a shallow copy of an existing PangoGlyphItemIter structure.

Parameters

orig

a PangoGlyphItemIter, may be NULL.

[nullable]

Returns

the newly allocated PangoGlyphItemIter, which should be freed with pango_glyph_item_iter_free(), or NULL if orig was NULL.

[nullable]

Since: 1.22

pango_glyph_item_iter_free ()

void
pango_glyph_item_iter_free (PangoGlyphItemIter *iter);

Frees a PangoGlyphItemIter created by pango_glyph_item_iter_copy().

Parameters

iter

a PangoGlyphItemIter, may be NULL.

[nullable]

Since: 1.22

pango_glyph_item_iter_init_start ()

gboolean
pango_glyph_item_iter_init_start (PangoGlyphItemIter *iter,
                                  PangoGlyphItem *glyph_item,
                                  const char *text);

Initializes a PangoGlyphItemIter structure to point to the first cluster in a glyph item. See PangoGlyphItemIter for details of cluster orders.

Parameters

iter

a PangoGlyphItemIter

  

glyph_item

the glyph item to iterate over

  

text

text corresponding to the glyph item

  

Returns

FALSE if there are no clusters in the glyph item

Since: 1.22

pango_glyph_item_iter_init_end ()

gboolean
pango_glyph_item_iter_init_end (PangoGlyphItemIter *iter,
                                PangoGlyphItem *glyph_item,
                                const char *text);

Initializes a PangoGlyphItemIter structure to point to the last cluster in a glyph item. See PangoGlyphItemIter for details of cluster orders.

Parameters

iter

a PangoGlyphItemIter

  

glyph_item

the glyph item to iterate over

  

text

text corresponding to the glyph item

  

Returns

FALSE if there are no clusters in the glyph item

Since: 1.22

pango_glyph_item_iter_next_cluster ()

gboolean
pango_glyph_item_iter_next_cluster (PangoGlyphItemIter *iter);

Advances the iterator to the next cluster in the glyph item. See PangoGlyphItemIter for details of cluster orders.

Parameters

iter

a PangoGlyphItemIter

  

Returns

TRUE if the iterator was advanced, FALSE if we were already on the last cluster.

Since: 1.22

pango_glyph_item_iter_prev_cluster ()

gboolean
pango_glyph_item_iter_prev_cluster (PangoGlyphItemIter *iter);

Moves the iterator to the preceding cluster in the glyph item. See PangoGlyphItemIter for details of cluster orders.

Parameters

iter

a PangoGlyphItemIter

  

Returns

TRUE if the iterator was moved, FALSE if we were already on the first cluster.

Since: 1.22

Types and Values

PANGO_SCALE

#define PANGO_SCALE 1024

The PANGO_SCALE macro represents the scale between dimensions used for Pango distances and device units. (The definition of device units is dependent on the output device; it will typically be pixels for a screen, and points for a printer.) PANGO_SCALE is currently 1024, but this may be changed in the future.

When setting font sizes, device units are always considered to be points (as in "12 point font"), rather than pixels.

struct PangoRectangle

struct PangoRectangle {
  int x;
  int y;
  int width;
  int height;
};

The PangoRectangle structure represents a rectangle. It is frequently used to represent the logical or ink extents of a single glyph or section of text. (See, for instance, pango_font_get_glyph_extents())

Members

int x;

X coordinate of the left side of the rectangle.

  

int y;

Y coordinate of the the top side of the rectangle.

  

int width;

width of the rectangle.

  

int height;

height of the rectangle.

  

struct PangoMatrix

struct PangoMatrix {
  double xx;
  double xy;
  double yx;
  double yy;
  double x0;
  double y0;
};

A structure specifying a transformation between user-space coordinates and device coordinates. The transformation is given by

x_device = x_user * matrix->xx + y_user * matrix->xy + matrix->x0;
y_device = x_user * matrix->yx + y_user * matrix->yy + matrix->y0;

Members

double xx;

1st component of the transformation matrix

  

double xy;

2nd component of the transformation matrix

  

double yx;

3rd component of the transformation matrix

  

double yy;

4th component of the transformation matrix

  

double x0;

x translation

  

double y0;

y translation

  

Since: 1.6

PANGO_MATRIX_INIT

#define PANGO_MATRIX_INIT { 1., 0., 0., 1., 0., 0. }

Constant that can be used to initialize a PangoMatrix to the identity transform.

1
2
 
PangoMatrix matrix = PANGO_MATRIX_INIT;
pango_matrix_rotate (&matrix, 45.);

Since: 1.6

PangoGlyph

typedef guint32 PangoGlyph;

A PangoGlyph represents a single glyph in the output form of a string.

PANGO_GLYPH_EMPTY

#define PANGO_GLYPH_EMPTY           ((PangoGlyph)0x0FFFFFFF)

The PANGO_GLYPH_EMPTY macro represents a PangoGlyph value that has a special meaning, which is a zero-width empty glyph. This is useful for example in shaper modules, to use as the glyph for various zero-width Unicode characters (those passing pango_is_zero_width()).

PANGO_GLYPH_INVALID_INPUT

#define PANGO_GLYPH_INVALID_INPUT   ((PangoGlyph)0xFFFFFFFF)

The PANGO_GLYPH_INVALID_INPUT macro represents a PangoGlyph value that has a special meaning of invalid input. PangoLayout produces one such glyph per invalid input UTF-8 byte and such a glyph is rendered as a crossed box.

Note that this value is defined such that it has the PANGO_GLYPH_UNKNOWN_FLAG on.

Since: 1.20

PANGO_GLYPH_UNKNOWN_FLAG

#define PANGO_GLYPH_UNKNOWN_FLAG    ((PangoGlyph)0x10000000)

The PANGO_GLYPH_UNKNOWN_FLAG macro is a flag value that can be added to a gunichar value of a valid Unicode character, to produce a PangoGlyph value, representing an unknown-character glyph for the respective gunichar.

struct PangoGlyphInfo

struct PangoGlyphInfo {
  PangoGlyph    glyph;
  PangoGlyphGeometry geometry;
  PangoGlyphVisAttr  attr;
};

The PangoGlyphInfo structure represents a single glyph together with positioning information and visual attributes. It contains the following fields.

Members

PangoGlyph glyph;

the glyph itself.

  

PangoGlyphGeometry geometry;

the positional information about the glyph.

  

PangoGlyphVisAttr attr;

the visual attributes of the glyph.

  

struct PangoGlyphGeometry

struct PangoGlyphGeometry {
  PangoGlyphUnit width;
  PangoGlyphUnit x_offset;
  PangoGlyphUnit y_offset;
};

The PangoGlyphGeometry structure contains width and positioning information for a single glyph.

Members

PangoGlyphUnit width;

the logical width to use for the the character.

  

PangoGlyphUnit x_offset;

horizontal offset from nominal character position.

  

PangoGlyphUnit y_offset;

vertical offset from nominal character position.

  

PangoGlyphUnit

typedef gint32 PangoGlyphUnit;

The PangoGlyphUnit type is used to store dimensions within Pango. Dimensions are stored in 1/PANGO_SCALE of a device unit. (A device unit might be a pixel for screen display, or a point on a printer.) PANGO_SCALE is currently 1024, and may change in the future (unlikely though), but you should not depend on its exact value. The PANGO_PIXELS() macro can be used to convert from glyph units into device units with correct rounding.

struct PangoGlyphVisAttr

struct PangoGlyphVisAttr {
  guint is_cluster_start : 1;
};

The PangoGlyphVisAttr is used to communicate information between the shaping phase and the rendering phase. More attributes may be added in the future.

Members

guint is_cluster_start : 1;

set for the first logical glyph in each cluster. (Clusters are stored in visual order, within the cluster, glyphs are always ordered in logical order, since visual order is meaningless; that is, in Arabic text, accent glyphs follow the glyphs for the base character.)

  

struct PangoGlyphString

struct PangoGlyphString {
  gint num_glyphs;

  PangoGlyphInfo *glyphs;
  gint *log_clusters;
};

The PangoGlyphString structure is used to store strings of glyphs with geometry and visual attribute information. The storage for the glyph information is owned by the structure which simplifies memory management.

Members

gint num_glyphs;

number of the glyphs in this glyph string.

  

PangoGlyphInfo *glyphs;

array of glyph information for the glyph string.

[array length=num_glyphs]

gint *log_clusters;

logical cluster info, indexed by the byte index within the text corresponding to the glyph string.

  

struct PangoGlyphItem

struct PangoGlyphItem {
  PangoItem        *item;
  PangoGlyphString *glyphs;
};

A PangoGlyphItem is a pair of a PangoItem and the glyphs resulting from shaping the text corresponding to an item. As an example of the usage of PangoGlyphItem, the results of shaping text with PangoLayout is a list of PangoLayoutLine, each of which contains a list of PangoGlyphItem.

Members

PangoItem *item;

corresponding PangoItem.

  

PangoGlyphString *glyphs;

corresponding PangoGlyphString.

  

struct PangoGlyphItemIter

struct PangoGlyphItemIter {
  PangoGlyphItem *glyph_item;
  const gchar *text;

  int start_glyph;
  int start_index;
  int start_char;

  int end_glyph;
  int end_index;
  int end_char;
};

A PangoGlyphItemIter is an iterator over the clusters in a PangoGlyphItem. The forward direction of the iterator is the logical direction of text. That is, with increasing start_index and start_char values. If glyph_item is right-to-left (that is, if glyph_item->item->analysis.level is odd), then start_glyph decreases as the iterator moves forward. Moreover, in right-to-left cases, start_glyph is greater than end_glyph .

An iterator should be initialized using either of pango_glyph_item_iter_init_start() and pango_glyph_item_iter_init_end(), for forward and backward iteration respectively, and walked over using any desired mixture of pango_glyph_item_iter_next_cluster() and pango_glyph_item_iter_prev_cluster(). A common idiom for doing a forward iteration over the clusters is:

PangoGlyphItemIter cluster_iter;
gboolean have_cluster;

for (have_cluster = pango_glyph_item_iter_init_start (&cluster_iter,
                                                      glyph_item, text);
     have_cluster;
     have_cluster = pango_glyph_item_iter_next_cluster (&cluster_iter))
{
  ...
}

Note that text is the start of the text for layout, which is then indexed by glyph_item->item->offset to get to the text of glyph_item . The start_index and end_index values can directly index into text . The start_glyph , end_glyph , start_char , and end_char values however are zero-based for the glyph_item . For each cluster, the item pointed at by the start variables is included in the cluster while the one pointed at by end variables is not.

None of the members of a PangoGlyphItemIter should be modified manually.

Since: 1.22

PANGO_TYPE_GLYPH_STRING

#define PANGO_TYPE_GLYPH_STRING (pango_glyph_string_get_type ())

The GObject type for PangoGlyphString.

Generated by GTK-Doc V1.33.0
docs/html/pango-Layout-Objects.html0000664000175000017500000070403214002404370017436 0ustar mclasenmclasen Layout Objects: Pango Reference Manual

Layout Objects

Layout Objects — High-level layout driver objects

Functions

PangoLayout * pango_layout_new ()
PangoLayout * pango_layout_copy ()
PangoContext * pango_layout_get_context ()
void pango_layout_context_changed ()
guint pango_layout_get_serial ()
void pango_layout_set_text ()
const char * pango_layout_get_text ()
gint pango_layout_get_character_count ()
void pango_layout_set_markup ()
void pango_layout_set_markup_with_accel ()
void pango_layout_set_attributes ()
PangoAttrList * pango_layout_get_attributes ()
void pango_layout_set_font_description ()
const PangoFontDescription * pango_layout_get_font_description ()
void pango_layout_set_width ()
int pango_layout_get_width ()
void pango_layout_set_height ()
int pango_layout_get_height ()
void pango_layout_set_wrap ()
PangoWrapMode pango_layout_get_wrap ()
gboolean pango_layout_is_wrapped ()
void pango_layout_set_ellipsize ()
PangoEllipsizeMode pango_layout_get_ellipsize ()
gboolean pango_layout_is_ellipsized ()
void pango_layout_set_indent ()
int pango_layout_get_indent ()
int pango_layout_get_spacing ()
void pango_layout_set_spacing ()
void pango_layout_set_line_spacing ()
float pango_layout_get_line_spacing ()
void pango_layout_set_justify ()
gboolean pango_layout_get_justify ()
void pango_layout_set_auto_dir ()
gboolean pango_layout_get_auto_dir ()
PangoDirection pango_layout_get_direction ()
void pango_layout_set_alignment ()
PangoAlignment pango_layout_get_alignment ()
void pango_layout_set_tabs ()
PangoTabArray * pango_layout_get_tabs ()
void pango_layout_set_single_paragraph_mode ()
gboolean pango_layout_get_single_paragraph_mode ()
int pango_layout_get_unknown_glyphs_count ()
void pango_layout_get_log_attrs ()
const PangoLogAttr * pango_layout_get_log_attrs_readonly ()
void pango_layout_index_to_pos ()
void pango_layout_index_to_line_x ()
gboolean pango_layout_xy_to_index ()
void pango_layout_get_cursor_pos ()
void pango_layout_move_cursor_visually ()
void pango_layout_get_extents ()
void pango_layout_get_pixel_extents ()
void pango_layout_get_size ()
void pango_layout_get_pixel_size ()
int pango_layout_get_baseline ()
int pango_layout_get_line_count ()
PangoLayoutLine * pango_layout_get_line ()
PangoLayoutLine * pango_layout_get_line_readonly ()
GSList * pango_layout_get_lines ()
GSList * pango_layout_get_lines_readonly ()
PangoLayoutIter * pango_layout_get_iter ()
PangoLayoutIter * pango_layout_iter_copy ()
void pango_layout_iter_free ()
gboolean pango_layout_iter_next_run ()
gboolean pango_layout_iter_next_char ()
gboolean pango_layout_iter_next_cluster ()
gboolean pango_layout_iter_next_line ()
gboolean pango_layout_iter_at_last_line ()
int pango_layout_iter_get_index ()
int pango_layout_iter_get_baseline ()
PangoLayoutRun * pango_layout_iter_get_run ()
PangoLayoutRun * pango_layout_iter_get_run_readonly ()
PangoLayoutLine * pango_layout_iter_get_line ()
PangoLayoutLine * pango_layout_iter_get_line_readonly ()
PangoLayout * pango_layout_iter_get_layout ()
void pango_layout_iter_get_char_extents ()
void pango_layout_iter_get_cluster_extents ()
void pango_layout_iter_get_run_extents ()
void pango_layout_iter_get_line_yrange ()
void pango_layout_iter_get_line_extents ()
void pango_layout_iter_get_layout_extents ()
PangoLayoutLine * pango_layout_line_ref ()
void pango_layout_line_unref ()
void pango_layout_line_get_extents ()
void pango_layout_line_get_pixel_extents ()
void pango_layout_line_index_to_x ()
gboolean pango_layout_line_x_to_index ()
void pango_layout_line_get_x_ranges ()
void pango_layout_line_get_height ()

Types and Values

  PangoLayout
  PangoLayoutIter
enum PangoWrapMode
enum PangoEllipsizeMode
enum PangoAlignment
struct PangoLayoutLine
typedef PangoLayoutRun

Object Hierarchy

    GBoxed
    ├── PangoLayoutIter
    ╰── PangoLayoutLine
    GEnum
    ├── PangoAlignment
    ├── PangoEllipsizeMode
    ╰── PangoWrapMode
    GObject
    ╰── PangoLayout

Description

While complete access to the layout capabilities of Pango is provided using the detailed interfaces for itemization and shaping, using that functionality directly involves writing a fairly large amount of code. The objects and functions in this section provide a high-level driver for formatting entire paragraphs of text at once. This includes paragraph-level functionality such as line-breaking, justification, alignment and ellipsization.

Functions

pango_layout_new ()

PangoLayout *
pango_layout_new (PangoContext *context);

Create a new PangoLayout object with attributes initialized to default values for a particular PangoContext.

Parameters

context

a PangoContext

  

Returns

the newly allocated PangoLayout, with a reference count of one, which should be freed with g_object_unref().

pango_layout_copy ()

PangoLayout *
pango_layout_copy (PangoLayout *src);

Does a deep copy-by-value of the src layout. The attribute list, tab array, and text from the original layout are all copied by value.

Parameters

src

a PangoLayout

  

Returns

the newly allocated PangoLayout, with a reference count of one, which should be freed with g_object_unref().

[transfer full]

pango_layout_get_context ()

PangoContext *
pango_layout_get_context (PangoLayout *layout);

Retrieves the PangoContext used for this layout.

Parameters

layout

a PangoLayout

  

Returns

the PangoContext for the layout. This does not have an additional refcount added, so if you want to keep a copy of this around, you must reference it yourself.

[transfer none]

pango_layout_context_changed ()

void
pango_layout_context_changed (PangoLayout *layout);

Forces recomputation of any state in the PangoLayout that might depend on the layout's context. This function should be called if you make changes to the context subsequent to creating the layout.

Parameters

layout

a PangoLayout

  

pango_layout_get_serial ()

guint
pango_layout_get_serial (PangoLayout *layout);

Returns the current serial number of layout . The serial number is initialized to an small number larger than zero when a new layout is created and is increased whenever the layout is changed using any of the setter functions, or the PangoContext it uses has changed. The serial may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals".

This can be used to automatically detect changes to a PangoLayout, and is useful for example to decide whether a layout needs redrawing. To force the serial to be increased, use pango_layout_context_changed().

Parameters

layout

a PangoLayout

  

Returns

The current serial number of layout .

Since: 1.32.4

pango_layout_set_text ()

void
pango_layout_set_text (PangoLayout *layout,
                       const char *text,
                       int length);

Sets the text of the layout.

This function validates text and renders invalid UTF-8 with a placeholder glyph.

Note that if you have used pango_layout_set_markup() or pango_layout_set_markup_with_accel() on layout before, you may want to call pango_layout_set_attributes() to clear the attributes set on the layout from the markup as this function does not clear attributes.

Parameters

layout

a PangoLayout

  

text

the text

  

length

maximum length of text , in bytes. -1 indicates that the string is nul-terminated and the length should be calculated. The text will also be truncated on encountering a nul-termination even when length is positive.

  

pango_layout_get_text ()

const char *
pango_layout_get_text (PangoLayout *layout);

Gets the text in the layout. The returned text should not be freed or modified.

Parameters

layout

a PangoLayout

  

Returns

the text in the layout .

pango_layout_get_character_count ()

gint
pango_layout_get_character_count (PangoLayout *layout);

Returns the number of Unicode characters in the the text of layout .

Parameters

layout

a PangoLayout

  

Returns

the number of Unicode characters in the text of layout

Since: 1.30

pango_layout_set_markup ()

void
pango_layout_set_markup (PangoLayout *layout,
                         const char *markup,
                         int length);

Same as pango_layout_set_markup_with_accel(), but the markup text isn't scanned for accelerators.

Parameters

layout

a PangoLayout

  

markup

marked-up text

  

length

length of marked-up text in bytes, or -1 if markup is null-terminated

  

pango_layout_set_markup_with_accel ()

void
pango_layout_set_markup_with_accel (PangoLayout *layout,
                                    const char *markup,
                                    int length,
                                    gunichar accel_marker,
                                    gunichar *accel_char);

Sets the layout text and attribute list from marked-up text (see

markup format). Replaces

the current text and attribute list.

If accel_marker is nonzero, the given character will mark the character following it as an accelerator. For example, accel_marker might be an ampersand or underscore. All characters marked as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, and the first character so marked will be returned in accel_char . Two accel_marker characters following each other produce a single literal accel_marker character.

Parameters

layout

a PangoLayout

  

markup

marked-up text (see markup format)

  

length

length of marked-up text in bytes, or -1 if markup is null-terminated

  

accel_marker

marker for accelerators in the text

  

accel_char

return location for first located accelerator, or NULL.

[out caller-allocates][allow-none]

pango_layout_set_attributes ()

void
pango_layout_set_attributes (PangoLayout *layout,
                             PangoAttrList *attrs);

Sets the text attributes for a layout object. References attrs , so the caller can unref its reference.

Parameters

layout

a PangoLayout

  

attrs

a PangoAttrList, can be NULL.

[allow-none][transfer none]

pango_layout_get_attributes ()

PangoAttrList *
pango_layout_get_attributes (PangoLayout *layout);

Gets the attribute list for the layout, if any.

Parameters

layout

a PangoLayout

  

Returns

a PangoAttrList or NULL if none was set.

[transfer none][nullable]

pango_layout_set_font_description ()

void
pango_layout_set_font_description (PangoLayout *layout,
                                   const PangoFontDescription *desc);

Sets the default font description for the layout. If no font description is set on the layout, the font description from the layout's context is used.

Parameters

layout

a PangoLayout

  

desc

the new PangoFontDescription, or NULL to unset the current font description.

[allow-none]

pango_layout_get_font_description ()

const PangoFontDescription *
pango_layout_get_font_description (PangoLayout *layout);

Gets the font description for the layout, if any.

Parameters

layout

a PangoLayout

  

Returns

a pointer to the layout's font description, or NULL if the font description from the layout's context is inherited. This value is owned by the layout and must not be modified or freed.

[nullable]

Since: 1.8

pango_layout_set_width ()

void
pango_layout_set_width (PangoLayout *layout,
                        int width);

Sets the width to which the lines of the PangoLayout should wrap or ellipsized. The default value is -1: no width set.

Parameters

layout

a PangoLayout.

  

width

the desired width in Pango units, or -1 to indicate that no wrapping or ellipsization should be performed.

  

pango_layout_get_width ()

int
pango_layout_get_width (PangoLayout *layout);

Gets the width to which the lines of the PangoLayout should wrap.

Parameters

layout

a PangoLayout

  

Returns

the width in Pango units, or -1 if no width set.

pango_layout_set_height ()

void
pango_layout_set_height (PangoLayout *layout,
                         int height);

Sets the height to which the PangoLayout should be ellipsized at. There are two different behaviors, based on whether height is positive or negative.

If height is positive, it will be the maximum height of the layout. Only lines would be shown that would fit, and if there is any text omitted, an ellipsis added. At least one line is included in each paragraph regardless of how small the height value is. A value of zero will render exactly one line for the entire layout.

If height is negative, it will be the (negative of) maximum number of lines per paragraph. That is, the total number of lines shown may well be more than this value if the layout contains multiple paragraphs of text. The default value of -1 means that first line of each paragraph is ellipsized. This behavior may be changed in the future to act per layout instead of per paragraph. File a bug against pango at http://bugzilla.gnome.org/ if your code relies on this behavior.

Height setting only has effect if a positive width is set on layout and ellipsization mode of layout is not PANGO_ELLIPSIZE_NONE. The behavior is undefined if a height other than -1 is set and ellipsization mode is set to PANGO_ELLIPSIZE_NONE, and may change in the future.

Parameters

layout

a PangoLayout.

  

height

the desired height of the layout in Pango units if positive, or desired number of lines if negative.

  

Since: 1.20

pango_layout_get_height ()

int
pango_layout_get_height (PangoLayout *layout);

Gets the height of layout used for ellipsization. See pango_layout_set_height() for details.

Parameters

layout

a PangoLayout

  

Returns

the height, in Pango units if positive, or number of lines if negative.

Since: 1.20

pango_layout_set_wrap ()

void
pango_layout_set_wrap (PangoLayout *layout,
                       PangoWrapMode wrap);

Sets the wrap mode; the wrap mode only has effect if a width is set on the layout with pango_layout_set_width(). To turn off wrapping, set the width to -1.

Parameters

layout

a PangoLayout

  

wrap

the wrap mode

  

pango_layout_get_wrap ()

PangoWrapMode
pango_layout_get_wrap (PangoLayout *layout);

Gets the wrap mode for the layout.

Use pango_layout_is_wrapped() to query whether any paragraphs were actually wrapped.

Parameters

layout

a PangoLayout

  

Returns

active wrap mode.

pango_layout_is_wrapped ()

gboolean
pango_layout_is_wrapped (PangoLayout *layout);

Queries whether the layout had to wrap any paragraphs.

This returns TRUE if a positive width is set on layout , ellipsization mode of layout is set to PANGO_ELLIPSIZE_NONE, and there are paragraphs exceeding the layout width that have to be wrapped.

Parameters

layout

a PangoLayout

  

Returns

TRUE if any paragraphs had to be wrapped, FALSE otherwise.

Since: 1.16

pango_layout_set_ellipsize ()

void
pango_layout_set_ellipsize (PangoLayout *layout,
                            PangoEllipsizeMode ellipsize);

Sets the type of ellipsization being performed for layout . Depending on the ellipsization mode ellipsize text is removed from the start, middle, or end of text so they fit within the width and height of layout set with pango_layout_set_width() and pango_layout_set_height().

If the layout contains characters such as newlines that force it to be layed out in multiple paragraphs, then whether each paragraph is ellipsized separately or the entire layout is ellipsized as a whole depends on the set height of the layout. See pango_layout_set_height() for details.

Parameters

layout

a PangoLayout

  

ellipsize

the new ellipsization mode for layout

 

Since: 1.6

pango_layout_get_ellipsize ()

PangoEllipsizeMode
pango_layout_get_ellipsize (PangoLayout *layout);

Gets the type of ellipsization being performed for layout . See pango_layout_set_ellipsize()

Parameters

layout

a PangoLayout

  

Returns

the current ellipsization mode for layout .

Use pango_layout_is_ellipsized() to query whether any paragraphs were actually ellipsized.

Since: 1.6

pango_layout_is_ellipsized ()

gboolean
pango_layout_is_ellipsized (PangoLayout *layout);

Queries whether the layout had to ellipsize any paragraphs.

This returns TRUE if the ellipsization mode for layout is not PANGO_ELLIPSIZE_NONE, a positive width is set on layout , and there are paragraphs exceeding that width that have to be ellipsized.

Parameters

layout

a PangoLayout

  

Returns

TRUE if any paragraphs had to be ellipsized, FALSE otherwise.

Since: 1.16

pango_layout_set_indent ()

void
pango_layout_set_indent (PangoLayout *layout,
                         int indent);

Sets the width in Pango units to indent each paragraph. A negative value of indent will produce a hanging indentation. That is, the first line will have the full width, and subsequent lines will be indented by the absolute value of indent .

The indent setting is ignored if layout alignment is set to PANGO_ALIGN_CENTER.

Parameters

layout

a PangoLayout.

  

indent

the amount by which to indent.

  

pango_layout_get_indent ()

int
pango_layout_get_indent (PangoLayout *layout);

Gets the paragraph indent width in Pango units. A negative value indicates a hanging indentation.

Parameters

layout

a PangoLayout

  

Returns

the indent in Pango units.

pango_layout_get_spacing ()

int
pango_layout_get_spacing (PangoLayout *layout);

Gets the amount of spacing between the lines of the layout.

Parameters

layout

a PangoLayout

  

Returns

the spacing in Pango units.

pango_layout_set_spacing ()

void
pango_layout_set_spacing (PangoLayout *layout,
                          int spacing);

Sets the amount of spacing in Pango unit between the lines of the layout. When placing lines with spacing, Pango arranges things so that

line2.top = line1.bottom + spacing

Note: Since 1.44, Pango defaults to using the line height (as determined by the font) for placing lines. The spacing set with this function is only taken into account when the line-height factor is set to zero with pango_layout_set_line_spacing().

Parameters

layout

a PangoLayout.

  

spacing

the amount of spacing

  

pango_layout_set_line_spacing ()

void
pango_layout_set_line_spacing (PangoLayout *layout,
                               float factor);

Sets a factor for line spacing. Typical values are: 0, 1, 1.5, 2. The default values is 0.

If factor is non-zero, lines are placed so that

baseline2 = baseline1 + factor * height2

where height2 is the line height of the second line (as determined by the font(s)). In this case, the spacing set with pango_layout_set_spacing() is ignored.

If factor is zero, spacing is applied as before.

Parameters

layout

a PangoLayout

  

factor

the new line spacing factor

  

Since: 1.44

pango_layout_get_line_spacing ()

float
pango_layout_get_line_spacing (PangoLayout *layout);

Gets the value that has been set with pango_layout_set_line_spacing().

Parameters

layout

a PangoLayout

  

Since: 1.44

pango_layout_set_justify ()

void
pango_layout_set_justify (PangoLayout *layout,
                          gboolean justify);

Sets whether each complete line should be stretched to fill the entire width of the layout. This stretching is typically done by adding whitespace, but for some scripts (such as Arabic), the justification may be done in more complex ways, like extending the characters.

Note that this setting is not implemented and so is ignored in Pango older than 1.18.

Parameters

layout

a PangoLayout

  

justify

whether the lines in the layout should be justified.

  

pango_layout_get_justify ()

gboolean
pango_layout_get_justify (PangoLayout *layout);

Gets whether each complete line should be stretched to fill the entire width of the layout.

Parameters

layout

a PangoLayout

  

Returns

the justify.

pango_layout_set_auto_dir ()

void
pango_layout_set_auto_dir (PangoLayout *layout,
                           gboolean auto_dir);

Sets whether to calculate the bidirectional base direction for the layout according to the contents of the layout; when this flag is on (the default), then paragraphs in layout that begin with strong right-to-left characters (Arabic and Hebrew principally), will have right-to-left layout, paragraphs with letters from other scripts will have left-to-right layout. Paragraphs with only neutral characters get their direction from the surrounding paragraphs.

When FALSE, the choice between left-to-right and right-to-left layout is done according to the base direction of the layout's PangoContext. (See pango_context_set_base_dir()).

When the auto-computed direction of a paragraph differs from the base direction of the context, the interpretation of PANGO_ALIGN_LEFT and PANGO_ALIGN_RIGHT are swapped.

Parameters

layout

a PangoLayout

  

auto_dir

if TRUE, compute the bidirectional base direction from the layout's contents.

  

Since: 1.4

pango_layout_get_auto_dir ()

gboolean
pango_layout_get_auto_dir (PangoLayout *layout);

Gets whether to calculate the bidirectional base direction for the layout according to the contents of the layout. See pango_layout_set_auto_dir().

Parameters

layout

a PangoLayout

  

Returns

TRUE if the bidirectional base direction is computed from the layout's contents, FALSE otherwise.

Since: 1.4

pango_layout_get_direction ()

PangoDirection
pango_layout_get_direction (PangoLayout *layout,
                            int index);

Gets the text direction at the given character position in layout .

Parameters

layout

a PangoLayout

  

index

the byte index of the char

  

Returns

the text direction at index

Since: 1.46

pango_layout_set_alignment ()

void
pango_layout_set_alignment (PangoLayout *layout,
                            PangoAlignment alignment);

Sets the alignment for the layout: how partial lines are positioned within the horizontal space available.

Parameters

layout

a PangoLayout

  

alignment

the alignment

  

pango_layout_get_alignment ()

PangoAlignment
pango_layout_get_alignment (PangoLayout *layout);

Gets the alignment for the layout: how partial lines are positioned within the horizontal space available.

Parameters

layout

a PangoLayout

  

Returns

the alignment.

pango_layout_set_tabs ()

void
pango_layout_set_tabs (PangoLayout *layout,
                       PangoTabArray *tabs);

Sets the tabs to use for layout , overriding the default tabs (by default, tabs are every 8 spaces). If tabs is NULL, the default tabs are reinstated. tabs is copied into the layout; you must free your copy of tabs yourself.

Parameters

layout

a PangoLayout

  

tabs

a PangoTabArray, or NULL.

[allow-none]

pango_layout_get_tabs ()

PangoTabArray *
pango_layout_get_tabs (PangoLayout *layout);

Gets the current PangoTabArray used by this layout. If no PangoTabArray has been set, then the default tabs are in use and NULL is returned. Default tabs are every 8 spaces. The return value should be freed with pango_tab_array_free().

Parameters

layout

a PangoLayout

  

Returns

a copy of the tabs for this layout, or NULL.

[nullable]

pango_layout_set_single_paragraph_mode ()

void
pango_layout_set_single_paragraph_mode
                               (PangoLayout *layout,
                                gboolean setting);

If setting is TRUE, do not treat newlines and similar characters as paragraph separators; instead, keep all text in a single paragraph, and display a glyph for paragraph separator characters. Used when you want to allow editing of newlines on a single text line.

Parameters

layout

a PangoLayout

  

setting

new setting

  

pango_layout_get_single_paragraph_mode ()

gboolean
pango_layout_get_single_paragraph_mode
                               (PangoLayout *layout);

Obtains the value set by pango_layout_set_single_paragraph_mode().

Parameters

layout

a PangoLayout

  

Returns

TRUE if the layout does not break paragraphs at paragraph separator characters, FALSE otherwise.

pango_layout_get_unknown_glyphs_count ()

int
pango_layout_get_unknown_glyphs_count (PangoLayout *layout);

Counts the number unknown glyphs in layout . That is, zero if glyphs for all characters in the layout text were found, or more than zero otherwise.

This function can be used to determine if there are any fonts available to render all characters in a certain string, or when used in combination with PANGO_ATTR_FALLBACK, to check if a certain font supports all the characters in the string.

Parameters

layout

a PangoLayout

  

Returns

The number of unknown glyphs in layout .

Since: 1.16

pango_layout_get_log_attrs ()

void
pango_layout_get_log_attrs (PangoLayout *layout,
                            PangoLogAttr **attrs,
                            gint *n_attrs);

Retrieves an array of logical attributes for each character in the layout .

Parameters

layout

a PangoLayout

  

attrs

location to store a pointer to an array of logical attributes This value must be freed with g_free().

[out][array length=n_attrs][transfer container]

n_attrs

location to store the number of the attributes in the array. (The stored value will be one more than the total number of characters in the layout, since there need to be attributes corresponding to both the position before the first character and the position after the last character.).

[out]

pango_layout_get_log_attrs_readonly ()

const PangoLogAttr *
pango_layout_get_log_attrs_readonly (PangoLayout *layout,
                                     gint *n_attrs);

Retrieves an array of logical attributes for each character in the layout .

This is a faster alternative to pango_layout_get_log_attrs(). The returned array is part of layout and must not be modified. Modifying the layout will invalidate the returned array.

The number of attributes returned in n_attrs will be one more than the total number of characters in the layout, since there need to be attributes corresponding to both the position before the first character and the position after the last character.

Parameters

layout

a PangoLayout

  

n_attrs

location to store the number of the attributes in the array.

[out]

Returns

an array of logical attributes.

[array length=n_attrs]

Since: 1.30

pango_layout_index_to_pos ()

void
pango_layout_index_to_pos (PangoLayout *layout,
                           int index_,
                           PangoRectangle *pos);

Converts from an index within a PangoLayout to the onscreen position corresponding to the grapheme at that index, which is represented as rectangle. Note that pos->x is always the leading edge of the grapheme and pos->x + pos->width the trailing edge of the grapheme. If the directionality of the grapheme is right-to-left, then pos->width will be negative.

Parameters

layout

a PangoLayout

  

index_

byte index within layout

 

pos

rectangle in which to store the position of the grapheme.

[out]

pango_layout_index_to_line_x ()

void
pango_layout_index_to_line_x (PangoLayout *layout,
                              int index_,
                              gboolean trailing,
                              int *line,
                              int *x_pos);

Converts from byte index_ within the layout to line and X position. (X position is measured from the left edge of the line)

Parameters

layout

a PangoLayout

  

index_

the byte index of a grapheme within the layout.

  

trailing

an integer indicating the edge of the grapheme to retrieve the position of. If > 0, the trailing edge of the grapheme, if 0, the leading of the grapheme.

  

line

location to store resulting line index. (which will between 0 and pango_layout_get_line_count(layout) - 1), or NULL.

[out][allow-none]

x_pos

location to store resulting position within line (PANGO_SCALE units per device unit), or NULL.

[out][allow-none]

pango_layout_xy_to_index ()

gboolean
pango_layout_xy_to_index (PangoLayout *layout,
                          int x,
                          int y,
                          int *index_,
                          int *trailing);

Converts from X and Y position within a layout to the byte index to the character at that logical position. If the Y position is not inside the layout, the closest position is chosen (the position will be clamped inside the layout). If the X position is not within the layout, then the start or the end of the line is chosen as described for pango_layout_line_x_to_index(). If either the X or Y positions were not inside the layout, then the function returns FALSE; on an exact hit, it returns TRUE.

Parameters

layout

a PangoLayout

  

x

the X offset (in Pango units) from the left edge of the layout.

  

y

the Y offset (in Pango units) from the top edge of the layout

  

index_

location to store calculated byte index.

[out]

trailing

location to store a integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the leading edge of the grapheme.

[out]

Returns

TRUE if the coordinates were inside text, FALSE otherwise.

pango_layout_get_cursor_pos ()

void
pango_layout_get_cursor_pos (PangoLayout *layout,
                             int index_,
                             PangoRectangle *strong_pos,
                             PangoRectangle *weak_pos);

Given an index within a layout, determines the positions that of the strong and weak cursors if the insertion point is at that index. The position of each cursor is stored as a zero-width rectangle. The strong cursor location is the location where characters of the directionality equal to the base direction of the layout are inserted. The weak cursor location is the location where characters of the directionality opposite to the base direction of the layout are inserted.

Parameters

layout

a PangoLayout

  

index_

the byte index of the cursor

  

strong_pos

location to store the strong cursor position (may be NULL).

[out][allow-none]

weak_pos

location to store the weak cursor position (may be NULL).

[out][allow-none]

pango_layout_move_cursor_visually ()

void
pango_layout_move_cursor_visually (PangoLayout *layout,
                                   gboolean strong,
                                   int old_index,
                                   int old_trailing,
                                   int direction,
                                   int *new_index,
                                   int *new_trailing);

Computes a new cursor position from an old position and a count of positions to move visually. If direction is positive, then the new strong cursor position will be one position to the right of the old cursor position. If direction is negative, then the new strong cursor position will be one position to the left of the old cursor position.

In the presence of bidirectional text, the correspondence between logical and visual order will depend on the direction of the current run, and there may be jumps when the cursor is moved off of the end of a run.

Motion here is in cursor positions, not in characters, so a single call to pango_layout_move_cursor_visually() may move the cursor over multiple characters when multiple characters combine to form a single grapheme.

Parameters

layout

a PangoLayout.

  

strong

whether the moving cursor is the strong cursor or the weak cursor. The strong cursor is the cursor corresponding to text insertion in the base direction for the layout.

  

old_index

the byte index of the grapheme for the old index

  

old_trailing

if 0, the cursor was at the leading edge of the grapheme indicated by old_index , if > 0, the cursor was at the trailing edge.

  

direction

direction to move cursor. A negative value indicates motion to the left.

  

new_index

location to store the new cursor byte index. A value of -1 indicates that the cursor has been moved off the beginning of the layout. A value of G_MAXINT indicates that the cursor has been moved off the end of the layout.

[out]

new_trailing

number of characters to move forward from the location returned for new_index to get the position where the cursor should be displayed. This allows distinguishing the position at the beginning of one line from the position at the end of the preceding line. new_index is always on the line where the cursor should be displayed.

[out]

pango_layout_get_extents ()

void
pango_layout_get_extents (PangoLayout *layout,
                          PangoRectangle *ink_rect,
                          PangoRectangle *logical_rect);

Computes the logical and ink extents of layout . Logical extents are usually what you want for positioning things. Note that both extents may have non-zero x and y. You may want to use those to offset where you render the layout. Not doing that is a very typical bug that shows up as right-to-left layouts not being correctly positioned in a layout with a set width.

The extents are given in layout coordinates and in Pango units; layout coordinates begin at the top left corner of the layout.

Parameters

layout

a PangoLayout

  

ink_rect

rectangle used to store the extents of the layout as drawn or NULL to indicate that the result is not needed.

[out][allow-none]

logical_rect

rectangle used to store the logical extents of the layout or NULL to indicate that the result is not needed.

[out][allow-none]

pango_layout_get_pixel_extents ()

void
pango_layout_get_pixel_extents (PangoLayout *layout,
                                PangoRectangle *ink_rect,
                                PangoRectangle *logical_rect);

Computes the logical and ink extents of layout in device units. This function just calls pango_layout_get_extents() followed by two pango_extents_to_pixels() calls, rounding ink_rect and logical_rect such that the rounded rectangles fully contain the unrounded one (that is, passes them as first argument to pango_extents_to_pixels()).

Parameters

layout

a PangoLayout

  

ink_rect

rectangle used to store the extents of the layout as drawn or NULL to indicate that the result is not needed.

[out][allow-none]

logical_rect

rectangle used to store the logical extents of the layout or NULL to indicate that the result is not needed.

[out][allow-none]

pango_layout_get_size ()

void
pango_layout_get_size (PangoLayout *layout,
                       int *width,
                       int *height);

Determines the logical width and height of a PangoLayout in Pango units (device units scaled by PANGO_SCALE). This is simply a convenience function around pango_layout_get_extents().

Parameters

layout

a PangoLayout

  

width

location to store the logical width, or NULL.

[out][allow-none]

height

location to store the logical height, or NULL.

[out][allow-none]

pango_layout_get_pixel_size ()

void
pango_layout_get_pixel_size (PangoLayout *layout,
                             int *width,
                             int *height);

Determines the logical width and height of a PangoLayout in device units. (pango_layout_get_size() returns the width and height scaled by PANGO_SCALE.) This is simply a convenience function around pango_layout_get_pixel_extents().

Parameters

layout

a PangoLayout

  

width

location to store the logical width, or NULL.

[out][allow-none]

height

location to store the logical height, or NULL.

[out][allow-none]

pango_layout_get_baseline ()

int
pango_layout_get_baseline (PangoLayout *layout);

Gets the Y position of baseline of the first line in layout .

Parameters

layout

a PangoLayout

  

Returns

baseline of first line, from top of layout .

Since: 1.22

pango_layout_get_line_count ()

int
pango_layout_get_line_count (PangoLayout *layout);

Retrieves the count of lines for the layout .

Parameters

layout

PangoLayout

  

Returns

the line count.

pango_layout_get_line ()

PangoLayoutLine *
pango_layout_get_line (PangoLayout *layout,
                       int line);

Retrieves a particular line from a PangoLayout.

Use the faster pango_layout_get_line_readonly() if you do not plan to modify the contents of the line (glyphs, glyph widths, etc.).

Parameters

layout

a PangoLayout

  

line

the index of a line, which must be between 0 and pango_layout_get_line_count(layout) - 1, inclusive.

  

Returns

the requested PangoLayoutLine, or NULL if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout.

[transfer none][nullable]

pango_layout_get_line_readonly ()

PangoLayoutLine *
pango_layout_get_line_readonly (PangoLayout *layout,
                                int line);

Retrieves a particular line from a PangoLayout.

This is a faster alternative to pango_layout_get_line(), but the user is not expected to modify the contents of the line (glyphs, glyph widths, etc.).

Parameters

layout

a PangoLayout

  

line

the index of a line, which must be between 0 and pango_layout_get_line_count(layout) - 1, inclusive.

  

Returns

the requested PangoLayoutLine, or NULL if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout. No changes should be made to the line.

[transfer none][nullable]

Since: 1.16

pango_layout_get_lines ()

GSList *
pango_layout_get_lines (PangoLayout *layout);

Returns the lines of the layout as a list.

Use the faster pango_layout_get_lines_readonly() if you do not plan to modify the contents of the lines (glyphs, glyph widths, etc.).

Parameters

layout

a PangoLayout

  

Returns

a GSList containing the lines in the layout. This points to internal data of the PangoLayout and must be used with care. It will become invalid on any change to the layout's text or properties.

[element-type Pango.LayoutLine][transfer none]

pango_layout_get_lines_readonly ()

GSList *
pango_layout_get_lines_readonly (PangoLayout *layout);

Returns the lines of the layout as a list.

This is a faster alternative to pango_layout_get_lines(), but the user is not expected to modify the contents of the lines (glyphs, glyph widths, etc.).

Parameters

layout

a PangoLayout

  

Returns

a GSList containing the lines in the layout. This points to internal data of the PangoLayout and must be used with care. It will become invalid on any change to the layout's text or properties. No changes should be made to the lines.

[element-type Pango.LayoutLine][transfer none]

Since: 1.16

pango_layout_get_iter ()

PangoLayoutIter *
pango_layout_get_iter (PangoLayout *layout);

Returns an iterator to iterate over the visual extents of the layout.

Parameters

layout

a PangoLayout

  

Returns

the new PangoLayoutIter that should be freed using pango_layout_iter_free().

pango_layout_iter_copy ()

PangoLayoutIter *
pango_layout_iter_copy (PangoLayoutIter *iter);

Copies a PangoLayoutIter.

Parameters

iter

a PangoLayoutIter, may be NULL.

[nullable]

Returns

the newly allocated PangoLayoutIter, which should be freed with pango_layout_iter_free(), or NULL if iter was NULL.

[nullable]

Since: 1.20

pango_layout_iter_free ()

void
pango_layout_iter_free (PangoLayoutIter *iter);

Frees an iterator that's no longer in use.

Parameters

iter

a PangoLayoutIter, may be NULL.

[nullable]

pango_layout_iter_next_run ()

gboolean
pango_layout_iter_next_run (PangoLayoutIter *iter);

Moves iter forward to the next run in visual order. If iter was already at the end of the layout, returns FALSE.

Parameters

iter

a PangoLayoutIter

  

Returns

whether motion was possible.

pango_layout_iter_next_char ()

gboolean
pango_layout_iter_next_char (PangoLayoutIter *iter);

Moves iter forward to the next character in visual order. If iter was already at the end of the layout, returns FALSE.

Parameters

iter

a PangoLayoutIter

  

Returns

whether motion was possible.

pango_layout_iter_next_cluster ()

gboolean
pango_layout_iter_next_cluster (PangoLayoutIter *iter);

Moves iter forward to the next cluster in visual order. If iter was already at the end of the layout, returns FALSE.

Parameters

iter

a PangoLayoutIter

  

Returns

whether motion was possible.

pango_layout_iter_next_line ()

gboolean
pango_layout_iter_next_line (PangoLayoutIter *iter);

Moves iter forward to the start of the next line. If iter is already on the last line, returns FALSE.

Parameters

iter

a PangoLayoutIter

  

Returns

whether motion was possible.

pango_layout_iter_at_last_line ()

gboolean
pango_layout_iter_at_last_line (PangoLayoutIter *iter);

Determines whether iter is on the last line of the layout.

Parameters

iter

a PangoLayoutIter

  

Returns

TRUE if iter is on the last line.

pango_layout_iter_get_index ()

int
pango_layout_iter_get_index (PangoLayoutIter *iter);

Gets the current byte index. Note that iterating forward by char moves in visual order, not logical order, so indexes may not be sequential. Also, the index may be equal to the length of the text in the layout, if on the NULL run (see pango_layout_iter_get_run()).

Parameters

iter

a PangoLayoutIter

  

Returns

current byte index.

pango_layout_iter_get_baseline ()

int
pango_layout_iter_get_baseline (PangoLayoutIter *iter);

Gets the Y position of the current line's baseline, in layout coordinates (origin at top left of the entire layout).

Parameters

iter

a PangoLayoutIter

  

Returns

baseline of current line.

pango_layout_iter_get_run ()

PangoLayoutRun *
pango_layout_iter_get_run (PangoLayoutIter *iter);

Gets the current run. When iterating by run, at the end of each line, there's a position with a NULL run, so this function can return NULL. The NULL run at the end of each line ensures that all lines have at least one run, even lines consisting of only a newline.

Use the faster pango_layout_iter_get_run_readonly() if you do not plan to modify the contents of the run (glyphs, glyph widths, etc.).

Parameters

iter

a PangoLayoutIter

  

Returns

the current run.

[transfer none][nullable]

pango_layout_iter_get_run_readonly ()

PangoLayoutRun *
pango_layout_iter_get_run_readonly (PangoLayoutIter *iter);

Gets the current run. When iterating by run, at the end of each line, there's a position with a NULL run, so this function can return NULL. The NULL run at the end of each line ensures that all lines have at least one run, even lines consisting of only a newline.

This is a faster alternative to pango_layout_iter_get_run(), but the user is not expected to modify the contents of the run (glyphs, glyph widths, etc.).

Parameters

iter

a PangoLayoutIter

  

Returns

the current run, that should not be modified.

[transfer none][nullable]

Since: 1.16

pango_layout_iter_get_line ()

PangoLayoutLine *
pango_layout_iter_get_line (PangoLayoutIter *iter);

Gets the current line.

Use the faster pango_layout_iter_get_line_readonly() if you do not plan to modify the contents of the line (glyphs, glyph widths, etc.).

Parameters

iter

a PangoLayoutIter

  

Returns

the current line.

[transfer none]

pango_layout_iter_get_line_readonly ()

PangoLayoutLine *
pango_layout_iter_get_line_readonly (PangoLayoutIter *iter);

Gets the current line for read-only access.

This is a faster alternative to pango_layout_iter_get_line(), but the user is not expected to modify the contents of the line (glyphs, glyph widths, etc.).

Parameters

iter

a PangoLayoutIter

  

Returns

the current line, that should not be modified.

[transfer none]

Since: 1.16

pango_layout_iter_get_layout ()

PangoLayout *
pango_layout_iter_get_layout (PangoLayoutIter *iter);

Gets the layout associated with a PangoLayoutIter.

Parameters

iter

a PangoLayoutIter

  

Returns

the layout associated with iter .

[transfer none]

Since: 1.20

pango_layout_iter_get_char_extents ()

void
pango_layout_iter_get_char_extents (PangoLayoutIter *iter,
                                    PangoRectangle *logical_rect);

Gets the extents of the current character, in layout coordinates (origin is the top left of the entire layout). Only logical extents can sensibly be obtained for characters; ink extents make sense only down to the level of clusters.

Parameters

iter

a PangoLayoutIter

  

logical_rect

rectangle to fill with logical extents.

[out caller-allocates]

pango_layout_iter_get_cluster_extents ()

void
pango_layout_iter_get_cluster_extents (PangoLayoutIter *iter,
                                       PangoRectangle *ink_rect,
                                       PangoRectangle *logical_rect);

Gets the extents of the current cluster, in layout coordinates (origin is the top left of the entire layout).

Parameters

iter

a PangoLayoutIter

  

ink_rect

rectangle to fill with ink extents, or NULL.

[out][allow-none]

logical_rect

rectangle to fill with logical extents, or NULL.

[out][allow-none]

pango_layout_iter_get_run_extents ()

void
pango_layout_iter_get_run_extents (PangoLayoutIter *iter,
                                   PangoRectangle *ink_rect,
                                   PangoRectangle *logical_rect);

Gets the extents of the current run in layout coordinates (origin is the top left of the entire layout).

Parameters

iter

a PangoLayoutIter

  

ink_rect

rectangle to fill with ink extents, or NULL.

[out][allow-none]

logical_rect

rectangle to fill with logical extents, or NULL.

[out][allow-none]

pango_layout_iter_get_line_yrange ()

void
pango_layout_iter_get_line_yrange (PangoLayoutIter *iter,
                                   int *y0_,
                                   int *y1_);

Divides the vertical space in the PangoLayout being iterated over between the lines in the layout, and returns the space belonging to the current line. A line's range includes the line's logical extents, plus half of the spacing above and below the line, if pango_layout_set_spacing() has been called to set layout spacing. The Y positions are in layout coordinates (origin at top left of the entire layout).

Note: Since 1.44, Pango uses line heights for placing lines, and there may be gaps between the ranges returned by this function.

Parameters

iter

a PangoLayoutIter

  

y0_

start of line, or NULL.

[out][allow-none]

y1_

end of line, or NULL.

[out][allow-none]

pango_layout_iter_get_line_extents ()

void
pango_layout_iter_get_line_extents (PangoLayoutIter *iter,
                                    PangoRectangle *ink_rect,
                                    PangoRectangle *logical_rect);

Obtains the extents of the current line. ink_rect or logical_rect can be NULL if you aren't interested in them. Extents are in layout coordinates (origin is the top-left corner of the entire PangoLayout). Thus the extents returned by this function will be the same width/height but not at the same x/y as the extents returned from pango_layout_line_get_extents().

Parameters

iter

a PangoLayoutIter

  

ink_rect

rectangle to fill with ink extents, or NULL.

[out][allow-none]

logical_rect

rectangle to fill with logical extents, or NULL.

[out][allow-none]

pango_layout_iter_get_layout_extents ()

void
pango_layout_iter_get_layout_extents (PangoLayoutIter *iter,
                                      PangoRectangle *ink_rect,
                                      PangoRectangle *logical_rect);

Obtains the extents of the PangoLayout being iterated over. ink_rect or logical_rect can be NULL if you aren't interested in them.

Parameters

iter

a PangoLayoutIter

  

ink_rect

rectangle to fill with ink extents, or NULL.

[out][allow-none]

logical_rect

rectangle to fill with logical extents, or NULL.

[out][allow-none]

pango_layout_line_ref ()

PangoLayoutLine *
pango_layout_line_ref (PangoLayoutLine *line);

Increase the reference count of a PangoLayoutLine by one.

Parameters

line

a PangoLayoutLine, may be NULL.

[nullable]

Returns

the line passed in.

Since: 1.10

pango_layout_line_unref ()

void
pango_layout_line_unref (PangoLayoutLine *line);

Decrease the reference count of a PangoLayoutLine by one. If the result is zero, the line and all associated memory will be freed.

Parameters

line

a PangoLayoutLine

  

pango_layout_line_get_extents ()

void
pango_layout_line_get_extents (PangoLayoutLine *line,
                               PangoRectangle *ink_rect,
                               PangoRectangle *logical_rect);

Computes the logical and ink extents of a layout line. See pango_font_get_glyph_extents() for details about the interpretation of the rectangles.

Parameters

line

a PangoLayoutLine

  

ink_rect

rectangle used to store the extents of the glyph string as drawn, or NULL.

[out][allow-none]

logical_rect

rectangle used to store the logical extents of the glyph string, or NULL.

[out][allow-none]

pango_layout_line_get_pixel_extents ()

void
pango_layout_line_get_pixel_extents (PangoLayoutLine *layout_line,
                                     PangoRectangle *ink_rect,
                                     PangoRectangle *logical_rect);

Computes the logical and ink extents of layout_line in device units. This function just calls pango_layout_line_get_extents() followed by two pango_extents_to_pixels() calls, rounding ink_rect and logical_rect such that the rounded rectangles fully contain the unrounded one (that is, passes them as first argument to pango_extents_to_pixels()).

Parameters

layout_line

a PangoLayoutLine

  

ink_rect

rectangle used to store the extents of the glyph string as drawn, or NULL.

[out][allow-none]

logical_rect

rectangle used to store the logical extents of the glyph string, or NULL.

[out][allow-none]

pango_layout_line_index_to_x ()

void
pango_layout_line_index_to_x (PangoLayoutLine *line,
                              int index_,
                              gboolean trailing,
                              int *x_pos);

Converts an index within a line to a X position.

Parameters

line

a PangoLayoutLine

  

index_

byte offset of a grapheme within the layout

  

trailing

an integer indicating the edge of the grapheme to retrieve the position of. If > 0, the trailing edge of the grapheme, if 0, the leading of the grapheme.

  

x_pos

location to store the x_offset (in Pango unit).

[out]

pango_layout_line_x_to_index ()

gboolean
pango_layout_line_x_to_index (PangoLayoutLine *line,
                              int x_pos,
                              int *index_,
                              int *trailing);

Converts from x offset to the byte index of the corresponding character within the text of the layout. If x_pos is outside the line, index_ and trailing will point to the very first or very last position in the line. This determination is based on the resolved direction of the paragraph; for example, if the resolved direction is right-to-left, then an X position to the right of the line (after it) results in 0 being stored in index_ and trailing . An X position to the left of the line results in index_ pointing to the (logical) last grapheme in the line and trailing being set to the number of characters in that grapheme. The reverse is true for a left-to-right line.

Parameters

line

a PangoLayoutLine

  

x_pos

the X offset (in Pango units) from the left edge of the line.

  

index_

location to store calculated byte index for the grapheme in which the user clicked.

[out]

trailing

location to store an integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the leading edge of the grapheme.

[out]

Returns

FALSE if x_pos was outside the line, TRUE if inside

pango_layout_line_get_x_ranges ()

void
pango_layout_line_get_x_ranges (PangoLayoutLine *line,
                                int start_index,
                                int end_index,
                                int **ranges,
                                int *n_ranges);

Gets a list of visual ranges corresponding to a given logical range. This list is not necessarily minimal - there may be consecutive ranges which are adjacent. The ranges will be sorted from left to right. The ranges are with respect to the left edge of the entire layout, not with respect to the line.

Parameters

line

a PangoLayoutLine

  

start_index

Start byte index of the logical range. If this value is less than the start index for the line, then the first range will extend all the way to the leading edge of the layout. Otherwise it will start at the leading edge of the first character.

  

end_index

Ending byte index of the logical range. If this value is greater than the end index for the line, then the last range will extend all the way to the trailing edge of the layout. Otherwise, it will end at the trailing edge of the last character.

  

ranges

location to store a pointer to an array of ranges. The array will be of length 2*n_ranges, with each range starting at (*ranges)[2*n] and of width (*ranges)[2*n + 1] - (*ranges)[2*n]. This array must be freed with g_free(). The coordinates are relative to the layout and are in Pango units.

[out][array length=n_ranges][transfer full]

n_ranges

The number of ranges stored in ranges .

  

pango_layout_line_get_height ()

void
pango_layout_line_get_height (PangoLayoutLine *line,
                              int *height);

Computes the height of the line, ie the distance between this and the previous lines baseline.

Parameters

line

a PangoLayoutLine

  

height

return location for the line height.

[out][allow-none]

Since: 1.44

Types and Values

PangoLayout

typedef struct _PangoLayout PangoLayout;

The PangoLayout structure represents an entire paragraph of text. It is initialized with a PangoContext, UTF-8 string and set of attributes for that string. Once that is done, the set of formatted lines can be extracted from the object, the layout can be rendered, and conversion between logical character positions within the layout's text, and the physical position of the resulting glyphs can be made.

There are also a number of parameters to adjust the formatting of a PangoLayout, which are illustrated in Figure 1, “Adjustable parameters (on the left) and font metrics (on the right) for a PangoLayoutâ€. It is possible, as well, to ignore the 2-D setup, and simply treat the results of a PangoLayout as a list of lines.

Figure 1. Adjustable parameters (on the left) and font metrics (on the right) for a PangoLayout

Adjustable parameters (on the left) and font metrics (on the right) for a PangoLayout

The PangoLayout structure is opaque, and has no user-visible fields.

PangoLayoutIter

typedef struct _PangoLayoutIter PangoLayoutIter;

A PangoLayoutIter structure can be used to iterate over the visual extents of a PangoLayout.

The PangoLayoutIter structure is opaque, and has no user-visible fields.

enum PangoWrapMode

A PangoWrapMode describes how to wrap the lines of a PangoLayout to the desired width.

Members

PANGO_WRAP_WORD

wrap lines at word boundaries.

  

PANGO_WRAP_CHAR

wrap lines at character boundaries.

  

PANGO_WRAP_WORD_CHAR

wrap lines at word boundaries, but fall back to character boundaries if there is not enough space for a full word.

  

enum PangoEllipsizeMode

The PangoEllipsizeMode type describes what sort of (if any) ellipsization should be applied to a line of text. In the ellipsization process characters are removed from the text in order to make it fit to a given width and replaced with an ellipsis.

Members

PANGO_ELLIPSIZE_NONE

No ellipsization

  

PANGO_ELLIPSIZE_START

Omit characters at the start of the text

  

PANGO_ELLIPSIZE_MIDDLE

Omit characters in the middle of the text

  

PANGO_ELLIPSIZE_END

Omit characters at the end of the text

  

enum PangoAlignment

A PangoAlignment describes how to align the lines of a PangoLayout within the available space. If the PangoLayout is set to justify using pango_layout_set_justify(), this only has effect for partial lines.

Members

PANGO_ALIGN_LEFT

Put all available space on the right

  

PANGO_ALIGN_CENTER

Center the line within the available space

  

PANGO_ALIGN_RIGHT

Put all available space on the left

  

struct PangoLayoutLine

struct PangoLayoutLine {
  PangoLayout *layout;
  gint         start_index;     /* start of line as byte index into layout->text */
  gint         length;		/* length of line in bytes */
  GSList      *runs;
  guint        is_paragraph_start : 1;  /* TRUE if this is the first line of the paragraph */
  guint        resolved_dir : 3;  /* Resolved PangoDirection of line */
};

The PangoLayoutLine structure represents one of the lines resulting from laying out a paragraph via PangoLayout. PangoLayoutLine structures are obtained by calling pango_layout_get_line() and are only valid until the text, attributes, or settings of the parent PangoLayout are modified.

Routines for rendering PangoLayout objects are provided in code specific to each rendering system.

Members

PangoLayout *layout;

the layout this line belongs to, might be NULL.

[allow-none]

gint start_index;

start of line as byte index into layout->text

  

gint length;

length of line in bytes

  

GSList *runs;

list of runs in the line, from left to right.

[allow-none][element-type Pango.LayoutRun]

guint is_paragraph_start : 1;

TRUE if this is the first line of the paragraph

  

guint resolved_dir : 3;

Resolved PangoDirection of line

  

PangoLayoutRun

typedef PangoGlyphItem PangoLayoutRun;

The PangoLayoutRun structure represents a single run within a PangoLayoutLine; it is simply an alternate name for PangoGlyphItem. See the PangoGlyphItem docs for details on the fields.

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docs/html/pango-Markup.html0000664000175000017500000006660214002404370016035 0ustar mclasenmclasen Markup: Pango Reference Manual

Markup

Markup — Simple markup language for text with attributes

Functions

gboolean pango_parse_markup ()
GMarkupParseContext * pango_markup_parser_new ()
gboolean pango_markup_parser_finish ()

Description

Frequently, you want to display some text to the user with attributes applied to part of the text (for example, you might want bold or italicized words). With the base Pango interfaces, you could create a PangoAttrList and apply it to the text; the problem is that you'd need to apply attributes to some numeric range of characters, for example "characters 12-17." This is broken from an internationalization standpoint; once the text is translated, the word you wanted to italicize could be in a different position.

The solution is to include the text attributes in the string to be translated. Pango provides this feature with a small markup language. You can parse a marked-up string into the string text plus a PangoAttrList using either of pango_parse_markup() or pango_markup_parser_new().

A simple example of a marked-up string might be:

1
 
<span foreground="blue" size="x-large">Blue text</span> is <i>cool</i>!

Pango uses GMarkup to parse this language, which means that XML features such as numeric character entities such as &amp;#169; for © can be used too.

The root tag of a marked-up document is <markup>, but pango_parse_markup() allows you to omit this tag, so you will most likely never need to use it. The most general markup tag is <span>, then there are some convenience tags.

Span attributes

<span> has the following attributes:

  • font_desc: A font description string, such as "Sans Italic 12". See pango_font_description_from_string() for a description of the format of the string representation . Note that any other span attributes will override this description. So if you have "Sans Italic" and also a style="normal" attribute, you will get Sans normal, not italic.

  • font_family: A font family name

  • font_size, size: Font size in 1024ths of a point, or one of the absolute sizes xx-small, x-small, small, medium, large, x-large, xx-large, or one of the relative sizes smaller or larger. If you want to specify a absolute size, it's usually easier to take advantage of the ability to specify a partial font description using font; you can use font='12.5' rather than size='12800'.

  • font_style: One of normal, oblique, italic

  • font_weight: One of ultralight, light, normal, bold, ultrabold, heavy, or a numeric weight

  • font_variant: One of normal or smallcaps

  • font_stretch, stretch: One of ultracondensed, extracondensed, condensed, semicondensed, normal, semiexpanded, expanded, extraexpanded, ultraexpanded

  • font_features: A comma-separated list of OpenType font feature settings, in the same syntax as accepted by CSS. E.g: font_features='dlig=1, -kern, afrc on'

  • foreground, fgcolor: An RGB color specification such as #00FF00 or a color name such as red. Since 1.38, an RGBA color specification such as #00FF007F will be interpreted as specifying both a foreground color and foreground alpha.

  • background, bgcolor: An RGB color specification such as #00FF00 or a color name such as red. Since 1.38, an RGBA color specification such as #00FF007F will be interpreted as specifying both a background color and background alpha.

  • alpha, fgalpha: An alpha value for the foreground color, either a plain integer between 1 and 65536 or a percentage value like 50%.

  • background_alpha, bgalpha: An alpha value for the background color, either a plain integer between 1 and 65536 or a percentage value like 50%.

  • underline: One of none, single, double, low, error, single-line, double-line or error-line.

  • underline_color: The color of underlines; an RGB color specification such as #00FF00 or a color name such as red

  • overline: One of none or single

  • overline_color: The color of overlines; an RGB color specification such as #00FF00 or a color name such as red

  • rise: Vertical displacement, in Pango units. Can be negative for subscript, positive for superscript.

  • strikethrough true or false whether to strike through the text

  • strikethrough_color: The color of strikethrough lines; an RGB color specification such as #00FF00 or a color name such as red

  • fallback: true or false whether to enable fallback. If disabled, then characters will only be used from the closest matching font on the system. No fallback will be done to other fonts on the system that might contain the characters in the text. Fallback is enabled by default. Most applications should not disable fallback.

  • allow_breaks: true or false whether to allow line breaks or not. If not allowed, the range will be kept in a single run as far as possible. Breaks are allowed by default.

  • insert_hyphens: true or false` whether to insert hyphens when breaking lines in the middle of a word. Hyphens are inserted by default.

  • show: A value determining how invisible characters are treated. Possible values are spaces, line-breaks, ignorables or combinations, such as spaces|line-breaks.

  • lang: A language code, indicating the text language

  • letter_spacing: Inter-letter spacing in 1024ths of a point.

  • gravity: One of south, east, north, west, auto.

  • gravity_hint: One of natural, strong, line.

Convenience tags

The following convenience tags are provided:

  • <b>: Bold

  • <big>: Makes font relatively larger, equivalent to <span size="larger">

  • <i>: Italic

  • <s>: Strikethrough

  • <sub>: Subscript

  • <sup>: Superscript

  • <small>: Makes font relatively smaller, equivalent to <span size="smaller">

  • <tt>: Monospace

  • <u>: Underline

Functions

pango_parse_markup ()

gboolean
pango_parse_markup (const char *markup_text,
                    int length,
                    gunichar accel_marker,
                    PangoAttrList **attr_list,
                    char **text,
                    gunichar *accel_char,
                    GError **error);

Parses marked-up text (see

markup format) to create

a plain-text string and an attribute list.

If accel_marker is nonzero, the given character will mark the character following it as an accelerator. For example, accel_marker might be an ampersand or underscore. All characters marked as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, and the first character so marked will be returned in accel_char . Two accel_marker characters following each other produce a single literal accel_marker character.

To parse a stream of pango markup incrementally, use pango_markup_parser_new().

If any error happens, none of the output arguments are touched except for error .

Parameters

markup_text

markup to parse (see markup format)

  

length

length of markup_text , or -1 if nul-terminated

  

accel_marker

character that precedes an accelerator, or 0 for none

  

attr_list

address of return location for a PangoAttrList, or NULL.

[out][allow-none]

text

address of return location for text with tags stripped, or NULL.

[out][allow-none]

accel_char

address of return location for accelerator char, or NULL.

[out][allow-none]

error

address of return location for errors, or NULL

  

Returns

FALSE if error is set, otherwise TRUE

pango_markup_parser_new ()

GMarkupParseContext *
pango_markup_parser_new (gunichar accel_marker);

Parses marked-up text (see

markup format) to create

a plain-text string and an attribute list.

If accel_marker is nonzero, the given character will mark the character following it as an accelerator. For example, accel_marker might be an ampersand or underscore. All characters marked as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, and the first character so marked will be returned in accel_char , when calling finish(). Two accel_marker characters following each other produce a single literal accel_marker character.

To feed markup to the parser, use g_markup_parse_context_parse() on the returned GMarkupParseContext. When done with feeding markup to the parser, use pango_markup_parser_finish() to get the data out of it, and then use g_markup_parse_context_free() to free it.

This function is designed for applications that read pango markup from streams. To simply parse a string containing pango markup, the simpler pango_parse_markup() API is recommended instead.

Parameters

accel_marker

character that precedes an accelerator, or 0 for none

  

Returns

a GMarkupParseContext that should be destroyed with g_markup_parse_context_free().

[transfer none]

Since: 1.31.0

pango_markup_parser_finish ()

gboolean
pango_markup_parser_finish (GMarkupParseContext *context,
                            PangoAttrList **attr_list,
                            char **text,
                            gunichar *accel_char,
                            GError **error);

After feeding a pango markup parser some data with g_markup_parse_context_parse(), use this function to get the list of pango attributes and text out of the markup. This function will not free context , use g_markup_parse_context_free() to do so.

Parameters

context

A valid parse context that was returned from pango_markup_parser_new()

  

attr_list

address of return location for a PangoAttrList, or NULL.

[out][allow-none]

text

address of return location for text with tags stripped, or NULL.

[out][allow-none]

accel_char

address of return location for accelerator char, or NULL.

[out][allow-none]

error

address of return location for errors, or NULL

  

Returns

FALSE if error is set, otherwise TRUE

Since: 1.31.0

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docs/html/pango-Miscellaneous-Utilities.html0000664000175000017500000011134114002404370021341 0ustar mclasenmclasen Miscellaneous Utilities: Pango Reference Manual

Miscellaneous Utilities

Miscellaneous Utilities — Various convenience and utility functions

Functions

char ** pango_split_file_list ()
char * pango_trim_string ()
gint pango_read_line ()
gboolean pango_skip_space ()
gboolean pango_scan_word ()
gboolean pango_scan_string ()
gboolean pango_scan_int ()
gboolean pango_parse_enum ()
gboolean pango_parse_style ()
gboolean pango_parse_variant ()
gboolean pango_parse_weight ()
gboolean pango_parse_stretch ()
guint8 * pango_log2vis_get_embedding_levels ()
gboolean pango_is_zero_width ()
void pango_quantize_line_geometry ()

Description

The functions and utilities in this section are mostly used from Pango backends and modules, but may be useful for other purposes too.

Functions

pango_split_file_list ()

char **
pango_split_file_list (const char *str);

pango_split_file_list has been deprecated since version 1.38 and should not be used in newly-written code.

Splits a G_SEARCHPATH_SEPARATOR-separated list of files, stripping white space and substituting ~/ with $HOME/.

Parameters

str

a G_SEARCHPATH_SEPARATOR separated list of filenames

  

Returns

a list of strings to be freed with g_strfreev().

[transfer full][array zero-terminated=1]

pango_trim_string ()

char *
pango_trim_string (const char *str);

pango_trim_string has been deprecated since version 1.38 and should not be used in newly-written code.

Trims leading and trailing whitespace from a string.

Parameters

str

a string

  

Returns

A newly-allocated string that must be freed with g_free()

pango_read_line ()

gint
pango_read_line (FILE *stream,
                 GString *str);

pango_read_line has been deprecated since version 1.38 and should not be used in newly-written code.

Reads an entire line from a file into a buffer. Lines may be delimited with '\n', '\r', '\n\r', or '\r\n'. The delimiter is not written into the buffer. Text after a '#' character is treated as a comment and skipped. '\' can be used to escape a # character. '\' proceeding a line delimiter combines adjacent lines. A '\' proceeding any other character is ignored and written into the output buffer unmodified.

Parameters

stream

a stdio stream

  

str

GString buffer into which to write the result

  

Returns

0 if the stream was already at an EOF character, otherwise the number of lines read (this is useful for maintaining a line number counter which doesn't combine lines with '\')

pango_skip_space ()

gboolean
pango_skip_space (const char **pos);

pango_skip_space has been deprecated since version 1.38 and should not be used in newly-written code.

Skips 0 or more characters of white space.

Parameters

pos

in/out string position.

[inout]

Returns

FALSE if skipping the white space leaves the position at a '\0' character.

pango_scan_word ()

gboolean
pango_scan_word (const char **pos,
                 GString *out);

pango_scan_word has been deprecated since version 1.38 and should not be used in newly-written code.

Scans a word into a GString buffer. A word consists of [A-Za-z_] followed by zero or more [A-Za-z_0-9] Leading white space is skipped.

Parameters

pos

in/out string position.

[inout]

out

a GString into which to write the result

  

Returns

FALSE if a parse error occurred.

pango_scan_string ()

gboolean
pango_scan_string (const char **pos,
                   GString *out);

pango_scan_string has been deprecated since version 1.38 and should not be used in newly-written code.

Scans a string into a GString buffer. The string may either be a sequence of non-white-space characters, or a quoted string with '"'. Instead a quoted string, '\"' represents a literal quote. Leading white space outside of quotes is skipped.

Parameters

pos

in/out string position.

[inout]

out

a GString into which to write the result

  

Returns

FALSE if a parse error occurred.

pango_scan_int ()

gboolean
pango_scan_int (const char **pos,
                int *out);

pango_scan_int has been deprecated since version 1.38 and should not be used in newly-written code.

Scans an integer. Leading white space is skipped.

Parameters

pos

in/out string position.

[inout]

out

an int into which to write the result.

[out]

Returns

FALSE if a parse error occurred.

pango_parse_enum ()

gboolean
pango_parse_enum (GType type,
                  const char *str,
                  int *value,
                  gboolean warn,
                  char **possible_values);

pango_parse_enum has been deprecated since version 1.38 and should not be used in newly-written code.

Parses an enum type and stores the result in value .

If str does not match the nick name of any of the possible values for the enum and is not an integer, FALSE is returned, a warning is issued if warn is TRUE, and a string representing the list of possible values is stored in possible_values . The list is slash-separated, eg. "none/start/middle/end". If failed and possible_values is not NULL, returned string should be freed using g_free().

Parameters

type

enum type to parse, eg. PANGO_TYPE_ELLIPSIZE_MODE.

  

str

string to parse. May be NULL.

[allow-none]

value

integer to store the result in, or NULL.

[out][allow-none]

warn

if TRUE, issue a g_warning() on bad input.

  

possible_values

place to store list of possible values on failure, or NULL.

[out][allow-none]

Returns

TRUE if str was successfully parsed.

Since: 1.16

pango_parse_style ()

gboolean
pango_parse_style (const char *str,
                   PangoStyle *style,
                   gboolean warn);

Parses a font style. The allowed values are "normal", "italic" and "oblique", case variations being ignored.

Parameters

str

a string to parse.

  

style

a PangoStyle to store the result in.

[out]

warn

if TRUE, issue a g_warning() on bad input.

  

Returns

TRUE if str was successfully parsed.

pango_parse_variant ()

gboolean
pango_parse_variant (const char *str,
                     PangoVariant *variant,
                     gboolean warn);

Parses a font variant. The allowed values are "normal" and "smallcaps" or "small_caps", case variations being ignored.

Parameters

str

a string to parse.

  

variant

a PangoVariant to store the result in.

[out]

warn

if TRUE, issue a g_warning() on bad input.

  

Returns

TRUE if str was successfully parsed.

pango_parse_weight ()

gboolean
pango_parse_weight (const char *str,
                    PangoWeight *weight,
                    gboolean warn);

Parses a font weight. The allowed values are "heavy", "ultrabold", "bold", "normal", "light", "ultraleight" and integers. Case variations are ignored.

Parameters

str

a string to parse.

  

weight

a PangoWeight to store the result in.

[out]

warn

if TRUE, issue a g_warning() on bad input.

  

Returns

TRUE if str was successfully parsed.

pango_parse_stretch ()

gboolean
pango_parse_stretch (const char *str,
                     PangoStretch *stretch,
                     gboolean warn);

Parses a font stretch. The allowed values are "ultra_condensed", "extra_condensed", "condensed", "semi_condensed", "normal", "semi_expanded", "expanded", "extra_expanded" and "ultra_expanded". Case variations are ignored and the '_' characters may be omitted.

Parameters

str

a string to parse.

  

stretch

a PangoStretch to store the result in.

[out]

warn

if TRUE, issue a g_warning() on bad input.

  

Returns

TRUE if str was successfully parsed.

pango_log2vis_get_embedding_levels ()

guint8 *
pango_log2vis_get_embedding_levels (const gchar *text,
                                    int length,
                                    PangoDirection *pbase_dir);

This will return the bidirectional embedding levels of the input paragraph as defined by the Unicode Bidirectional Algorithm available at:

http://www.unicode.org/reports/tr9/

If the input base direction is a weak direction, the direction of the characters in the text will determine the final resolved direction.

Parameters

text

the text to itemize.

  

length

the number of bytes (not characters) to process, or -1 if text is nul-terminated and the length should be calculated.

  

pbase_dir

input base direction, and output resolved direction.

  

Returns

a newly allocated array of embedding levels, one item per character (not byte), that should be freed using g_free.

Since: 1.4

pango_is_zero_width ()

gboolean
pango_is_zero_width (gunichar ch);

Checks ch to see if it is a character that should not be normally rendered on the screen. This includes all Unicode characters with "ZERO WIDTH" in their name, as well as bidi formatting characters, and a few other ones. This is totally different from g_unichar_iszerowidth() and is at best misnamed.

Parameters

ch

a Unicode character

  

Returns

TRUE if ch is a zero-width character, FALSE otherwise

Since: 1.10

pango_quantize_line_geometry ()

void
pango_quantize_line_geometry (int *thickness,
                              int *position);

Quantizes the thickness and position of a line, typically an underline or strikethrough, to whole device pixels, that is integer multiples of PANGO_SCALE. The purpose of this function is to avoid such lines looking blurry.

Care is taken to make sure thickness is at least one pixel when this function returns, but returned position may become zero as a result of rounding.

Parameters

thickness

pointer to the thickness of a line, in Pango units.

[inout]

position

corresponding position.

[inout]

Since: 1.12

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Modules

Modules — Support for loadable modules

Functions

PangoMap * pango_find_map ()
PangoEngine * pango_map_get_engine ()
void pango_map_get_engines ()
void pango_module_register ()

Types and Values

struct PangoIncludedModule
  PangoMap
  PangoMapEntry

Description

Functions and macros in this section were used to support loading dynamic modules that add engines to Pango at run time.

That is no longer the case, and these APIs should not be used anymore.

Functions

pango_find_map ()

PangoMap *
pango_find_map (PangoLanguage *language,
                guint engine_type_id,
                guint render_type_id);

pango_find_map has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use. Does not do anything.

[skip]

Parameters

language

the language tag for which to find the map

  

engine_type_id

the engine type for the map to find

  

render_type_id

the render type for the map to find

  

Returns

NULL.

[transfer none][nullable]

pango_map_get_engine ()

PangoEngine *
pango_map_get_engine (PangoMap *map,
                      PangoScript script);

pango_map_get_engine has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use. Does not do anything.

[skip]

Parameters

map

a PangoMap

  

script

a PangoScript

  

Returns

NULL.

[transfer none][nullable]

pango_map_get_engines ()

void
pango_map_get_engines (PangoMap *map,
                       PangoScript script,
                       GSList **exact_engines,
                       GSList **fallback_engines);

pango_map_get_engines has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use. Does not do anything.

[skip]

Parameters

map

a PangoMap

  

script

a PangoScript

  

exact_engines

location to store list of engines that exactly handle this script.

[nullable]

fallback_engines

location to store list of engines that approximately handle this script.

[nullable]

Since: 1.4

pango_module_register ()

void
pango_module_register (PangoIncludedModule *module);

pango_module_register has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use. Does not do anything.

[skip]

Parameters

module

a PangoIncludedModule

  

Types and Values

struct PangoIncludedModule

struct PangoIncludedModule {
  void (*list) (PangoEngineInfo **engines,
		int              *n_engines);
  void (*init) (GTypeModule      *module);
  void (*exit) (void);
  PangoEngine *(*create) (const char       *id);
};

PangoIncludedModule has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoIncludedModule structure for a statically linked module contains the functions that would otherwise be loaded from a dynamically loaded module.

Members

list ()

a function that lists the engines defined in this module.

  

init ()

a function to initialize the module.

  

exit ()

a function to finalize the module.

  

create ()

a function to create an engine, given the engine name.

  

PangoMap

typedef struct _PangoMap PangoMap;

PangoMap is deprecated and should not be used in newly-written code.

PangoMapEntry

typedef struct _PangoMapEntry PangoMapEntry;

PangoMapEntry is deprecated and should not be used in newly-written code.

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docs/html/pango-Tab-Stops.html0000664000175000017500000006610614002404370016411 0ustar mclasenmclasen Tab Stops: Pango Reference Manual

Tab Stops

Tab Stops — Structures for storing tab stops

Functions

PangoTabArray * pango_tab_array_new ()
PangoTabArray * pango_tab_array_new_with_positions ()
PangoTabArray * pango_tab_array_copy ()
void pango_tab_array_free ()
gint pango_tab_array_get_size ()
void pango_tab_array_resize ()
void pango_tab_array_set_tab ()
void pango_tab_array_get_tab ()
void pango_tab_array_get_tabs ()
gboolean pango_tab_array_get_positions_in_pixels ()

Types and Values

  PangoTabArray
enum PangoTabAlign

Object Hierarchy

    GBoxed
    ╰── PangoTabArray
    GEnum
    ╰── PangoTabAlign

Description

Functions in this section are used to deal with PangoTabArray objects that can be used to set tab stop positions in a PangoLayout.

Functions

pango_tab_array_new ()

PangoTabArray *
pango_tab_array_new (gint initial_size,
                     gboolean positions_in_pixels);

Creates an array of initial_size tab stops. Tab stops are specified in pixel units if positions_in_pixels is TRUE, otherwise in Pango units. All stops are initially at position 0.

Parameters

initial_size

Initial number of tab stops to allocate, can be 0

  

positions_in_pixels

whether positions are in pixel units

  

Returns

the newly allocated PangoTabArray, which should be freed with pango_tab_array_free().

pango_tab_array_new_with_positions ()

PangoTabArray *
pango_tab_array_new_with_positions (gint size,
                                    gboolean positions_in_pixels,
                                    PangoTabAlign first_alignment,
                                    gint first_position,
                                    ...);

This is a convenience function that creates a PangoTabArray and allows you to specify the alignment and position of each tab stop. You must provide an alignment and position for size tab stops.

Parameters

size

number of tab stops in the array

  

positions_in_pixels

whether positions are in pixel units

  

first_alignment

alignment of first tab stop

  

first_position

position of first tab stop

  

...

additional alignment/position pairs

  

Returns

the newly allocated PangoTabArray, which should be freed with pango_tab_array_free().

pango_tab_array_copy ()

PangoTabArray *
pango_tab_array_copy (PangoTabArray *src);

Copies a PangoTabArray

Parameters

src

PangoTabArray to copy

  

Returns

the newly allocated PangoTabArray, which should be freed with pango_tab_array_free().

pango_tab_array_free ()

void
pango_tab_array_free (PangoTabArray *tab_array);

Frees a tab array and associated resources.

Parameters

tab_array

a PangoTabArray

  

pango_tab_array_get_size ()

gint
pango_tab_array_get_size (PangoTabArray *tab_array);

Gets the number of tab stops in tab_array .

Parameters

tab_array

a PangoTabArray

  

Returns

the number of tab stops in the array.

pango_tab_array_resize ()

void
pango_tab_array_resize (PangoTabArray *tab_array,
                        gint new_size);

Resizes a tab array. You must subsequently initialize any tabs that were added as a result of growing the array.

Parameters

tab_array

a PangoTabArray

  

new_size

new size of the array

  

pango_tab_array_set_tab ()

void
pango_tab_array_set_tab (PangoTabArray *tab_array,
                         gint tab_index,
                         PangoTabAlign alignment,
                         gint location);

Sets the alignment and location of a tab stop. alignment must always be PANGO_TAB_LEFT in the current implementation.

Parameters

tab_array

a PangoTabArray

  

tab_index

the index of a tab stop

  

alignment

tab alignment

  

location

tab location in Pango units

  

pango_tab_array_get_tab ()

void
pango_tab_array_get_tab (PangoTabArray *tab_array,
                         gint tab_index,
                         PangoTabAlign *alignment,
                         gint *location);

Gets the alignment and position of a tab stop.

Parameters

tab_array

a PangoTabArray

  

tab_index

tab stop index

  

alignment

location to store alignment, or NULL.

[out][allow-none]

location

location to store tab position, or NULL.

[out][allow-none]

pango_tab_array_get_tabs ()

void
pango_tab_array_get_tabs (PangoTabArray *tab_array,
                          PangoTabAlign **alignments,
                          gint **locations);

If non-NULL, alignments and locations are filled with allocated arrays of length pango_tab_array_get_size(). You must free the returned array.

Parameters

tab_array

a PangoTabArray

  

alignments

location to store an array of tab stop alignments, or NULL.

[out][allow-none]

locations

location to store an array of tab positions, or NULL.

[out][allow-none][array]

pango_tab_array_get_positions_in_pixels ()

gboolean
pango_tab_array_get_positions_in_pixels
                               (PangoTabArray *tab_array);

Returns TRUE if the tab positions are in pixels, FALSE if they are in Pango units.

Parameters

tab_array

a PangoTabArray

  

Returns

whether positions are in pixels.

Types and Values

PangoTabArray

typedef struct _PangoTabArray PangoTabArray;

A PangoTabArray struct contains an array of tab stops. Each tab stop has an alignment and a position.

enum PangoTabAlign

A PangoTabAlign specifies where a tab stop appears relative to the text.

Members

PANGO_TAB_LEFT

the tab stop appears to the left of the text.

  
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pango
pango-attributes PangoAttr PangoColor pango_color_copy pango_color_free pango_color_parse pango_color_parse_with_alpha pango_color_to_string PangoAttrType PangoUnderline PangoOverline PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING PANGO_ATTR_INDEX_TO_TEXT_END PangoAttribute PangoAttrFilterFunc PangoAttrDataCopyFunc PangoAttrClass PangoAttrString PangoAttrLanguage PangoAttrInt PangoAttrFloat PangoAttrColor PangoAttrSize PangoAttrShape PangoAttrFontDesc PangoAttrFontFeatures pango_attr_type_register pango_attr_type_get_name pango_attribute_init pango_attribute_copy pango_attribute_destroy pango_attribute_equal pango_attr_language_new pango_attr_family_new pango_attr_foreground_new pango_attr_background_new pango_attr_size_new pango_attr_size_new_absolute pango_attr_style_new pango_attr_weight_new pango_attr_variant_new pango_attr_stretch_new pango_attr_font_desc_new pango_attr_underline_new pango_attr_underline_color_new pango_attr_strikethrough_new pango_attr_strikethrough_color_new pango_attr_rise_new pango_attr_scale_new pango_attr_fallback_new pango_attr_letter_spacing_new pango_attr_shape_new pango_attr_shape_new_with_data pango_attr_gravity_new pango_attr_gravity_hint_new pango_attr_font_features_new pango_attr_foreground_alpha_new pango_attr_background_alpha_new pango_attr_allow_breaks_new pango_attr_insert_hyphens_new pango_attr_overline_new pango_attr_overline_color_new PangoShowFlags pango_attr_show_new pango_attr_list_new pango_attr_list_ref pango_attr_list_unref pango_attr_list_copy pango_attr_list_insert pango_attr_list_insert_before pango_attr_list_change pango_attr_list_splice pango_attr_list_update pango_attr_list_filter pango_attr_list_get_attributes pango_attr_list_equal pango_attr_list_get_iterator pango_attr_iterator_range pango_attr_iterator_next pango_attr_iterator_copy pango_attr_iterator_destroy pango_attr_iterator_get pango_attr_iterator_get_font pango_attr_iterator_get_attrs pango_parse_markup pango_markup_parser_new pango_markup_parser_finish PangoAttrIterator PangoAttrList PANGO_TYPE_ATTR_LIST PANGO_TYPE_COLOR pango_attr_iterator_get_type pango_attr_list_get_type pango_attribute_get_type pango_color_get_type
pango-attributes-private PangoAttrIterator PangoAttrList
pango-bidi-type PangoBidiType pango_bidi_type_for_unichar pango_unichar_direction pango_find_base_dir pango_get_mirror_char
pango-break PangoLogAttr pango_break pango_find_paragraph_boundary pango_get_log_attrs pango_default_break pango_tailor_break
pango-break-table
pango-context PangoContext pango_context_new pango_context_changed pango_context_set_font_map pango_context_get_font_map pango_context_get_serial pango_context_list_families pango_context_load_font pango_context_load_fontset pango_context_get_metrics pango_context_set_font_description pango_context_get_font_description pango_context_get_language pango_context_set_language pango_context_set_base_dir pango_context_get_base_dir pango_context_set_base_gravity pango_context_get_base_gravity pango_context_get_gravity pango_context_set_gravity_hint pango_context_get_gravity_hint pango_context_set_matrix pango_context_get_matrix pango_context_set_round_glyph_positions pango_context_get_round_glyph_positions pango_itemize pango_itemize_with_base_dir PANGO_CONTEXT PANGO_CONTEXT_CLASS PANGO_CONTEXT_GET_CLASS PANGO_IS_CONTEXT PANGO_IS_CONTEXT_CLASS PANGO_TYPE_CONTEXT PangoContextClass pango_context_get_type
pango-coverage PangoCoverageLevel pango_coverage_new pango_coverage_ref pango_coverage_unref pango_coverage_copy pango_coverage_get pango_coverage_set pango_coverage_max pango_coverage_to_bytes pango_coverage_from_bytes PangoCoverage pango_coverage_get_type
pango-direction PangoDirection
pango-emoji-table Interval
pango-engine PangoEngineShape PANGO_RENDER_TYPE_NONE PangoEngine PangoEngineClass PANGO_ENGINE_TYPE_LANG PangoEngineLang PangoEngineLangClass PANGO_ENGINE_TYPE_SHAPE PangoEngineShape PangoEngineShapeClass PangoEngineScriptInfo PangoEngineInfo script_engine_list script_engine_init script_engine_exit script_engine_create PANGO_ENGINE_DEFINE_TYPE PANGO_ENGINE_LANG_DEFINE_TYPE PANGO_ENGINE_SHAPE_DEFINE_TYPE PANGO_MODULE_ENTRY PANGO_ENGINE PANGO_ENGINE_CLASS PANGO_ENGINE_GET_CLASS PANGO_ENGINE_LANG PANGO_ENGINE_LANG_CLASS PANGO_ENGINE_LANG_GET_CLASS PANGO_ENGINE_SHAPE PANGO_ENGINE_SHAPE_CLASS PANGO_ENGINE_SHAPE_GET_CLASS PANGO_IS_ENGINE PANGO_IS_ENGINE_CLASS PANGO_IS_ENGINE_LANG PANGO_IS_ENGINE_LANG_CLASS PANGO_IS_ENGINE_SHAPE PANGO_IS_ENGINE_SHAPE_CLASS PANGO_TYPE_ENGINE PANGO_TYPE_ENGINE_LANG PANGO_TYPE_ENGINE_SHAPE pango_engine_get_type pango_engine_lang_get_type pango_engine_shape_get_type
pango-enum-types PANGO_TYPE_ALIGNMENT PANGO_TYPE_ATTR_TYPE PANGO_TYPE_BIDI_TYPE PANGO_TYPE_COVERAGE_LEVEL PANGO_TYPE_DIRECTION PANGO_TYPE_ELLIPSIZE_MODE PANGO_TYPE_FONT_MASK PANGO_TYPE_GRAVITY PANGO_TYPE_GRAVITY_HINT PANGO_TYPE_OVERLINE PANGO_TYPE_RENDER_PART PANGO_TYPE_SCRIPT PANGO_TYPE_SHAPE_FLAGS PANGO_TYPE_SHOW_FLAGS PANGO_TYPE_STRETCH PANGO_TYPE_STYLE PANGO_TYPE_TAB_ALIGN PANGO_TYPE_UNDERLINE PANGO_TYPE_VARIANT PANGO_TYPE_WEIGHT PANGO_TYPE_WRAP_MODE pango_alignment_get_type pango_attr_type_get_type pango_bidi_type_get_type pango_coverage_level_get_type pango_direction_get_type pango_ellipsize_mode_get_type pango_font_mask_get_type pango_gravity_get_type pango_gravity_hint_get_type pango_overline_get_type pango_render_part_get_type pango_script_get_type pango_shape_flags_get_type pango_show_flags_get_type pango_stretch_get_type pango_style_get_type pango_tab_align_get_type pango_underline_get_type pango_variant_get_type pango_weight_get_type pango_wrap_mode_get_type
pango-features PANGO_VERSION_MAJOR PANGO_VERSION_MINOR PANGO_VERSION_MICRO PANGO_VERSION_STRING
pango-font PangoFont PangoStyle PangoVariant PangoWeight PangoStretch PangoFontMask PANGO_SCALE_XX_SMALL PANGO_SCALE_X_SMALL PANGO_SCALE_SMALL PANGO_SCALE_MEDIUM PANGO_SCALE_LARGE PANGO_SCALE_X_LARGE PANGO_SCALE_XX_LARGE pango_font_description_new pango_font_description_copy pango_font_description_copy_static pango_font_description_hash pango_font_description_equal pango_font_description_free pango_font_descriptions_free pango_font_description_set_family pango_font_description_set_family_static pango_font_description_get_family pango_font_description_set_style pango_font_description_get_style pango_font_description_set_variant pango_font_description_get_variant pango_font_description_set_weight pango_font_description_get_weight pango_font_description_set_stretch pango_font_description_get_stretch pango_font_description_set_size pango_font_description_get_size pango_font_description_set_absolute_size pango_font_description_get_size_is_absolute pango_font_description_set_gravity pango_font_description_get_gravity pango_font_description_set_variations_static pango_font_description_set_variations pango_font_description_get_variations pango_font_description_get_set_fields pango_font_description_unset_fields pango_font_description_merge pango_font_description_merge_static pango_font_description_better_match pango_font_description_from_string pango_font_description_to_string pango_font_description_to_filename PangoFontMetrics pango_font_metrics_ref pango_font_metrics_unref pango_font_metrics_get_ascent pango_font_metrics_get_descent pango_font_metrics_get_height pango_font_metrics_get_approximate_char_width pango_font_metrics_get_approximate_digit_width pango_font_metrics_get_underline_position pango_font_metrics_get_underline_thickness pango_font_metrics_get_strikethrough_position pango_font_metrics_get_strikethrough_thickness PangoFontFamily pango_font_family_list_faces pango_font_family_get_name pango_font_family_is_monospace pango_font_family_is_variable pango_font_family_get_face PangoFontFace pango_font_face_describe pango_font_face_get_face_name pango_font_face_list_sizes pango_font_face_is_synthesized pango_font_face_get_family PangoFont pango_font_describe pango_font_describe_with_absolute_size pango_font_get_coverage pango_font_find_shaper pango_font_get_metrics pango_font_get_glyph_extents pango_font_get_font_map pango_font_get_face pango_font_has_char pango_font_get_features pango_font_get_hb_font PANGO_GLYPH_EMPTY PANGO_GLYPH_INVALID_INPUT PANGO_GLYPH_UNKNOWN_FLAG PANGO_GET_UNKNOWN_GLYPH PANGO_UNKNOWN_GLYPH_WIDTH PANGO_UNKNOWN_GLYPH_HEIGHT PangoFontDescription PANGO_FONT PANGO_FONT_CLASS PANGO_FONT_FACE PANGO_FONT_FACE_CLASS PANGO_FONT_FACE_GET_CLASS PANGO_FONT_FAMILY PANGO_FONT_FAMILY_CLASS PANGO_FONT_FAMILY_GET_CLASS PANGO_FONT_GET_CLASS PANGO_IS_FONT PANGO_IS_FONT_CLASS PANGO_IS_FONT_FACE PANGO_IS_FONT_FACE_CLASS PANGO_IS_FONT_FAMILY PANGO_IS_FONT_FAMILY_CLASS PANGO_TYPE_FONT PANGO_TYPE_FONT_DESCRIPTION PANGO_TYPE_FONT_FACE PANGO_TYPE_FONT_FAMILY PANGO_TYPE_FONT_METRICS PangoFontClass PangoFontFaceClass PangoFontFamilyClass pango_font_description_get_type pango_font_face_get_type pango_font_family_get_type pango_font_get_type pango_font_metrics_get_type
pango-fontmap PangoFontMap PangoFontMap PangoFontMapClass pango_font_map_create_context pango_font_map_load_font pango_font_map_load_fontset pango_font_map_list_families pango_font_map_get_serial pango_font_map_changed pango_font_map_get_family PangoContext PANGO_FONT_MAP PANGO_FONT_MAP_CLASS PANGO_FONT_MAP_GET_CLASS PANGO_IS_FONT_MAP PANGO_IS_FONT_MAP_CLASS PANGO_TYPE_FONT_MAP pango_font_map_get_type
pango-fontset PangoFontsetSimple PangoFontsetForeachFunc PangoFontset PangoFontsetClass pango_fontset_simple_new pango_fontset_simple_append pango_fontset_simple_size pango_fontset_get_font pango_fontset_get_metrics pango_fontset_foreach PangoFontsetSimple PANGO_FONTSET PANGO_FONTSET_CLASS PANGO_FONTSET_GET_CLASS PANGO_FONTSET_SIMPLE PANGO_IS_FONTSET PANGO_IS_FONTSET_CLASS PANGO_IS_FONTSET_SIMPLE PANGO_TYPE_FONTSET PANGO_TYPE_FONTSET_SIMPLE PangoFontsetSimpleClass pango_fontset_get_type pango_fontset_simple_get_type
pango-glyph PangoGlyphUnit PangoGlyphGeometry PangoGlyphVisAttr PangoGlyphInfo PangoGlyphString pango_glyph_string_new pango_glyph_string_set_size pango_glyph_string_copy pango_glyph_string_free pango_glyph_string_extents pango_glyph_string_get_width pango_glyph_string_extents_range pango_glyph_string_get_logical_widths pango_glyph_string_index_to_x pango_glyph_string_x_to_index pango_shape pango_shape_full PangoShapeFlags pango_shape_with_flags pango_reorder_items PANGO_TYPE_GLYPH_STRING pango_glyph_string_get_type
pango-glyph-item PangoGlyphItem pango_glyph_item_split pango_glyph_item_copy pango_glyph_item_free pango_glyph_item_apply_attrs pango_glyph_item_letter_space pango_glyph_item_get_logical_widths PangoGlyphItemIter pango_glyph_item_iter_copy pango_glyph_item_iter_free pango_glyph_item_iter_init_start pango_glyph_item_iter_init_end pango_glyph_item_iter_next_cluster pango_glyph_item_iter_prev_cluster PANGO_TYPE_GLYPH_ITEM PANGO_TYPE_GLYPH_ITEM_ITER pango_glyph_item_get_type pango_glyph_item_iter_get_type
pango-gravity PangoGravity PangoGravityHint pango_gravity_to_rotation pango_gravity_get_for_matrix pango_gravity_get_for_script pango_gravity_get_for_script_and_width PANGO_GRAVITY_IS_IMPROPER PANGO_GRAVITY_IS_VERTICAL
pango-item PANGO_ANALYSIS_FLAG_CENTERED_BASELINE PANGO_ANALYSIS_FLAG_NEED_HYPHEN PangoAnalysis PangoItem pango_item_new pango_item_copy pango_item_free pango_item_split pango_item_apply_attrs PANGO_ANALYSIS_FLAG_IS_ELLIPSIS PANGO_TYPE_ITEM pango_item_get_type
pango-language pango_language_from_string pango_language_to_string pango_language_get_sample_string pango_language_get_default pango_language_get_preferred pango_language_matches pango_language_includes_script pango_language_get_scripts PANGO_TYPE_LANGUAGE PangoLanguage pango_language_get_type
pango-layout PangoLayout PangoLayoutRun PangoAlignment PangoWrapMode PangoEllipsizeMode PangoLayoutLine pango_layout_new pango_layout_copy pango_layout_get_context pango_layout_set_attributes pango_layout_get_attributes pango_layout_set_text pango_layout_get_text pango_layout_get_character_count pango_layout_set_markup pango_layout_set_markup_with_accel pango_layout_set_font_description pango_layout_get_font_description pango_layout_set_width pango_layout_get_width pango_layout_set_height pango_layout_get_height pango_layout_set_wrap pango_layout_get_wrap pango_layout_is_wrapped pango_layout_set_indent pango_layout_get_indent pango_layout_set_spacing pango_layout_get_spacing pango_layout_set_line_spacing pango_layout_get_line_spacing pango_layout_set_justify pango_layout_get_justify pango_layout_set_auto_dir pango_layout_get_auto_dir pango_layout_set_alignment pango_layout_get_alignment pango_layout_set_tabs pango_layout_get_tabs pango_layout_set_single_paragraph_mode pango_layout_get_single_paragraph_mode pango_layout_set_ellipsize pango_layout_get_ellipsize pango_layout_is_ellipsized pango_layout_get_unknown_glyphs_count pango_layout_get_direction pango_layout_context_changed pango_layout_get_serial pango_layout_get_log_attrs pango_layout_get_log_attrs_readonly pango_layout_index_to_pos pango_layout_index_to_line_x pango_layout_get_cursor_pos pango_layout_move_cursor_visually pango_layout_xy_to_index pango_layout_get_extents pango_layout_get_pixel_extents pango_layout_get_size pango_layout_get_pixel_size pango_layout_get_baseline pango_layout_get_line_count pango_layout_get_line pango_layout_get_line_readonly pango_layout_get_lines pango_layout_get_lines_readonly pango_layout_line_ref pango_layout_line_unref pango_layout_line_x_to_index pango_layout_line_index_to_x pango_layout_line_get_x_ranges pango_layout_line_get_extents pango_layout_line_get_height pango_layout_line_get_pixel_extents pango_layout_get_iter pango_layout_iter_copy pango_layout_iter_free pango_layout_iter_get_index pango_layout_iter_get_run pango_layout_iter_get_run_readonly pango_layout_iter_get_line pango_layout_iter_get_line_readonly pango_layout_iter_at_last_line pango_layout_iter_get_layout pango_layout_iter_next_char pango_layout_iter_next_cluster pango_layout_iter_next_run pango_layout_iter_next_line pango_layout_iter_get_char_extents pango_layout_iter_get_cluster_extents pango_layout_iter_get_run_extents pango_layout_iter_get_line_extents pango_layout_iter_get_line_yrange pango_layout_iter_get_layout_extents pango_layout_iter_get_baseline PANGO_IS_LAYOUT PANGO_IS_LAYOUT_CLASS PANGO_LAYOUT PANGO_LAYOUT_CLASS PANGO_LAYOUT_GET_CLASS PANGO_TYPE_LAYOUT PANGO_TYPE_LAYOUT_ITER PANGO_TYPE_LAYOUT_LINE PangoLayout PangoLayoutClass PangoLayoutIter pango_layout_get_type pango_layout_iter_get_type pango_layout_line_get_type
pango-matrix PangoMatrix PANGO_MATRIX_INIT pango_matrix_copy pango_matrix_free pango_matrix_translate pango_matrix_scale pango_matrix_rotate pango_matrix_concat pango_matrix_transform_point pango_matrix_transform_distance pango_matrix_transform_rectangle pango_matrix_transform_pixel_rectangle pango_matrix_get_font_scale_factor pango_matrix_get_font_scale_factors PANGO_TYPE_MATRIX pango_matrix_get_type
pango-modules PangoIncludedModule pango_find_map pango_map_get_engine pango_map_get_engines pango_module_register PangoMap PangoMapEntry
pango-ot PangoOTTag PANGO_OT_TAG_MAKE PANGO_OT_TAG_MAKE_FROM_STRING PangoOTTableType PANGO_OT_ALL_GLYPHS PANGO_OT_NO_FEATURE PANGO_OT_NO_SCRIPT PANGO_OT_DEFAULT_LANGUAGE PANGO_OT_TAG_DEFAULT_SCRIPT PANGO_OT_TAG_DEFAULT_LANGUAGE PangoOTGlyph PangoOTFeatureMap PangoOTRulesetDescription pango_ot_info_get pango_ot_info_find_script pango_ot_info_find_language pango_ot_info_find_feature pango_ot_info_list_scripts pango_ot_info_list_languages pango_ot_info_list_features PANGO_OT_TYPE_BUFFER pango_ot_buffer_new pango_ot_buffer_destroy pango_ot_buffer_clear pango_ot_buffer_set_rtl pango_ot_buffer_add_glyph pango_ot_buffer_get_glyphs pango_ot_buffer_output pango_ot_buffer_set_zero_width_marks pango_ot_ruleset_get_for_description pango_ot_ruleset_new pango_ot_ruleset_new_for pango_ot_ruleset_new_from_description pango_ot_ruleset_add_feature pango_ot_ruleset_maybe_add_feature pango_ot_ruleset_maybe_add_features pango_ot_ruleset_get_feature_count pango_ot_ruleset_substitute pango_ot_ruleset_position pango_ot_tag_to_script pango_ot_tag_from_script pango_ot_tag_to_language pango_ot_tag_from_language PANGO_OT_TYPE_RULESET_DESCRIPTION pango_ot_ruleset_description_hash pango_ot_ruleset_description_equal pango_ot_ruleset_description_copy pango_ot_ruleset_description_free PangoOTInfo PangoOTRuleset PANGO_OT_INFO PANGO_OT_IS_INFO PANGO_OT_IS_RULESET PANGO_OT_RULESET PANGO_OT_TYPE_INFO PANGO_OT_TYPE_RULESET PANGO_TYPE_OT_BUFFER PANGO_TYPE_OT_RULESET_DESCRIPTION PangoOTBuffer pango_ot_buffer_get_type pango_ot_info_get_type pango_ot_ruleset_description_get_type pango_ot_ruleset_get_type
pango-renderer PangoRenderer PangoRenderPart PangoRenderer PangoRendererClass pango_renderer_draw_layout pango_renderer_draw_layout_line pango_renderer_draw_glyphs pango_renderer_draw_glyph_item pango_renderer_draw_rectangle pango_renderer_draw_error_underline pango_renderer_draw_trapezoid pango_renderer_draw_glyph pango_renderer_activate pango_renderer_deactivate pango_renderer_part_changed pango_renderer_set_color pango_renderer_get_color pango_renderer_set_alpha pango_renderer_get_alpha pango_renderer_set_matrix pango_renderer_get_matrix pango_renderer_get_layout pango_renderer_get_layout_line PANGO_IS_RENDERER PANGO_IS_RENDERER_CLASS PANGO_RENDERER PANGO_RENDERER_CLASS PANGO_RENDERER_GET_CLASS PANGO_TYPE_RENDERER PangoRendererPrivate pango_renderer_get_type
pango-script PangoScript pango_script_for_unichar pango_script_iter_new pango_script_iter_get_range pango_script_iter_next pango_script_iter_free pango_script_get_sample_language PangoScriptIter pango_script_iter_get_type
pango-tabs PangoTabAlign pango_tab_array_new pango_tab_array_new_with_positions pango_tab_array_copy pango_tab_array_free pango_tab_array_get_size pango_tab_array_resize pango_tab_array_set_tab pango_tab_array_get_tab pango_tab_array_get_tabs pango_tab_array_get_positions_in_pixels PANGO_TYPE_TAB_ARRAY PangoTabArray pango_tab_array_get_type
pango-trace-private PANGO_TRACE_CURRENT_TIME pango_trace_mark g_trace_mark
pango-types PangoGlyph PANGO_SCALE PANGO_PIXELS PANGO_PIXELS_FLOOR PANGO_PIXELS_CEIL PANGO_UNITS_ROUND pango_units_from_double pango_units_to_double PangoRectangle PANGO_ASCENT PANGO_DESCENT PANGO_LBEARING PANGO_RBEARING pango_extents_to_pixels PangoEngineLang PangoEngineShape PangoFont PangoFontMap PangoLogAttr
pango-utils pango_split_file_list pango_trim_string pango_read_line pango_skip_space pango_scan_word pango_scan_string pango_scan_int pango_parse_enum pango_parse_style pango_parse_variant pango_parse_weight pango_parse_stretch pango_quantize_line_geometry pango_log2vis_get_embedding_levels pango_is_zero_width PANGO_VERSION_ENCODE PANGO_VERSION PANGO_VERSION_CHECK pango_version pango_version_string pango_version_check
pango-utils-internal pango_parse_flags
pango-version-macros PANGO_AVAILABLE_IN_ALL PANGO_VERSION_1_2 PANGO_VERSION_1_4 PANGO_VERSION_1_6 PANGO_VERSION_1_8 PANGO_VERSION_1_10 PANGO_VERSION_1_12 PANGO_VERSION_1_14 PANGO_VERSION_1_16 PANGO_VERSION_1_18 PANGO_VERSION_1_20 PANGO_VERSION_1_22 PANGO_VERSION_1_24 PANGO_VERSION_1_26 PANGO_VERSION_1_28 PANGO_VERSION_1_30 PANGO_VERSION_1_32 PANGO_VERSION_1_34 PANGO_VERSION_1_36 PANGO_VERSION_1_38 PANGO_VERSION_1_40 PANGO_VERSION_1_42 PANGO_VERSION_1_44 PANGO_VERSION_1_46 PANGO_VERSION_1_48 PANGO_VERSION_CUR_STABLE PANGO_VERSION_PREV_STABLE PANGO_VERSION_MIN_REQUIRED PANGO_VERSION_MAX_ALLOWED PANGO_DEPRECATED PANGO_DEPRECATED_FOR PANGO_UNAVAILABLE PANGO_DEPRECATED_IN_1_2 PANGO_DEPRECATED_IN_1_2_FOR PANGO_AVAILABLE_IN_1_2 PANGO_DEPRECATED_IN_1_4 PANGO_DEPRECATED_IN_1_4_FOR PANGO_AVAILABLE_IN_1_4 PANGO_DEPRECATED_IN_1_6 PANGO_DEPRECATED_IN_1_6_FOR PANGO_AVAILABLE_IN_1_6 PANGO_DEPRECATED_IN_1_8 PANGO_DEPRECATED_IN_1_8_FOR PANGO_AVAILABLE_IN_1_8 PANGO_DEPRECATED_IN_1_10 PANGO_DEPRECATED_IN_1_10_FOR PANGO_AVAILABLE_IN_1_10 PANGO_AVAILABLE_IN_1_12 PANGO_DEPRECATED_IN_1_12 PANGO_DEPRECATED_IN_1_12_FOR PANGO_AVAILABLE_IN_1_14 PANGO_DEPRECATED_IN_1_14 PANGO_DEPRECATED_IN_1_14_FOR PANGO_AVAILABLE_IN_1_16 PANGO_DEPRECATED_IN_1_16 PANGO_DEPRECATED_IN_1_16_FOR PANGO_DEPRECATED_IN_1_18 PANGO_DEPRECATED_IN_1_18_FOR PANGO_AVAILABLE_IN_1_18 PANGO_DEPRECATED_IN_1_20 PANGO_DEPRECATED_IN_1_20_FOR PANGO_AVAILABLE_IN_1_20 PANGO_DEPRECATED_IN_1_22 PANGO_DEPRECATED_IN_1_22_FOR PANGO_AVAILABLE_IN_1_22 PANGO_DEPRECATED_IN_1_24 PANGO_DEPRECATED_IN_1_24_FOR PANGO_AVAILABLE_IN_1_24 PANGO_DEPRECATED_IN_1_26 PANGO_DEPRECATED_IN_1_26_FOR PANGO_AVAILABLE_IN_1_26 PANGO_DEPRECATED_IN_1_28 PANGO_DEPRECATED_IN_1_28_FOR PANGO_AVAILABLE_IN_1_28 PANGO_DEPRECATED_IN_1_30 PANGO_DEPRECATED_IN_1_30_FOR PANGO_AVAILABLE_IN_1_30 PANGO_DEPRECATED_IN_1_32 PANGO_DEPRECATED_IN_1_32_FOR PANGO_AVAILABLE_IN_1_32 PANGO_DEPRECATED_IN_1_34 PANGO_DEPRECATED_IN_1_34_FOR PANGO_AVAILABLE_IN_1_34 PANGO_DEPRECATED_IN_1_36 PANGO_DEPRECATED_IN_1_36_FOR PANGO_AVAILABLE_IN_1_36 PANGO_DEPRECATED_IN_1_38 PANGO_DEPRECATED_IN_1_38_FOR PANGO_AVAILABLE_IN_1_38 PANGO_DEPRECATED_IN_1_40 PANGO_DEPRECATED_IN_1_40_FOR PANGO_AVAILABLE_IN_1_40 PANGO_DEPRECATED_IN_1_42 PANGO_DEPRECATED_IN_1_42_FOR PANGO_AVAILABLE_IN_1_42 PANGO_DEPRECATED_IN_1_44 PANGO_DEPRECATED_IN_1_44_FOR PANGO_AVAILABLE_IN_1_44 PANGO_DEPRECATED_IN_1_46 PANGO_DEPRECATED_IN_1_46_FOR PANGO_AVAILABLE_IN_1_46 PANGO_DEPRECATED_IN_1_48 PANGO_DEPRECATED_IN_1_48_FOR PANGO_AVAILABLE_IN_1_48
pangocairo PangoCairoShapeRendererFunc pango_cairo_font_map_new pango_cairo_font_map_new_for_font_type pango_cairo_font_map_get_default pango_cairo_font_map_set_default pango_cairo_font_map_get_font_type pango_cairo_font_map_set_resolution pango_cairo_font_map_get_resolution pango_cairo_font_map_create_context pango_cairo_font_get_scaled_font pango_cairo_update_context pango_cairo_context_set_font_options pango_cairo_context_get_font_options pango_cairo_context_set_resolution pango_cairo_context_get_resolution pango_cairo_context_set_shape_renderer pango_cairo_context_get_shape_renderer pango_cairo_create_context pango_cairo_create_layout pango_cairo_update_layout pango_cairo_show_glyph_string pango_cairo_show_glyph_item pango_cairo_show_layout_line pango_cairo_show_layout pango_cairo_show_error_underline pango_cairo_glyph_string_path pango_cairo_layout_line_path pango_cairo_layout_path pango_cairo_error_underline_path PangoCairoFont PangoCairoFontMap PANGO_CAIRO_FONT PANGO_CAIRO_FONT_MAP PANGO_CAIRO_IS_FONT PANGO_CAIRO_IS_FONT_MAP PANGO_CAIRO_TYPE_FONT PANGO_CAIRO_TYPE_FONT_MAP pango_cairo_font_get_type pango_cairo_font_map_get_type
pangocairo-coretext PANGO_CAIRO_CORE_TEXT_FONT_MAP PANGO_IS_CAIRO_CORE_TEXT_FONT_MAP PANGO_TYPE_CAIRO_CORE_TEXT_FONT_MAP PangoCairoCoreTextFontMap pango_cairo_core_text_font_map_get_type
pangocairo-coretextfont PangoCairoCoreTextFont PANGO_CAIRO_CORE_TEXT_FONT PANGO_CAIRO_CORE_TEXT_FONT_CLASS PANGO_CAIRO_CORE_TEXT_FONT_GET_CLASS PANGO_IS_CAIRO_CORE_TEXT_FONT_CLASS PANGO_TYPE_CAIRO_CORE_TEXT_FONT PangoCairoCoreTextFont PangoCairoCoreTextFontClass pango_cairo_core_text_font_get_type
pangocoretext PangoCoreTextFont pango_core_text_font_get_ctfont PANGO_CORE_TEXT_FONT PANGO_IS_CORE_TEXT_FONT PANGO_TYPE_CORE_TEXT_FONT PangoCoreTextFont PangoCoreTextFontClass pango_core_text_font_get_type
pangofc-decoder PangoFcDecoder PangoFcDecoder PangoFcDecoderClass pango_fc_decoder_get_charset pango_fc_decoder_get_glyph PANGO_FC_DECODER PANGO_FC_DECODER_CLASS PANGO_FC_DECODER_GET_CLASS PANGO_FC_IS_DECODER PANGO_FC_IS_DECODER_CLASS PANGO_FC_TYPE_DECODER pango_fc_decoder_get_type
pangofc-font PangoFcFont PangoFcFont pango_fc_font_has_char pango_fc_font_get_glyph pango_fc_font_get_languages pango_fc_font_get_pattern pango_fc_font_get_unknown_glyph pango_fc_font_kern_glyphs pango_fc_font_lock_face pango_fc_font_unlock_face PangoFcFontClass PANGO_FC_FONT PANGO_FC_IS_FONT PANGO_FC_TYPE_FONT pango_fc_font_get_type
pangofc-font-private PangoFcFont PANGO_RENDER_TYPE_FC PangoFcFontClass PANGO_FC_FONT_CLASS PANGO_FC_FONT_GET_CLASS PANGO_IS_FC_FONT_CLASS
pangofc-fontmap PangoFcFontMap pango_fc_font_map_cache_clear pango_fc_font_map_config_changed pango_fc_font_map_set_config pango_fc_font_map_get_config PangoFcDecoderFindFunc pango_fc_font_map_add_decoder_find_func pango_fc_font_map_find_decoder pango_fc_font_description_from_pattern pango_fc_font_map_create_context pango_fc_font_map_shutdown pango_fc_font_map_get_hb_face PangoFcSubstituteFunc pango_fc_font_map_set_default_substitute pango_fc_font_map_substitute_changed PANGO_FC_GRAVITY PANGO_FC_VERSION PANGO_FC_PRGNAME PANGO_FC_FONT_FEATURES PANGO_FC_FONT_VARIATIONS PangoFcFontMap PangoFcFontMapClass PangoFcFontMapPrivate PANGO_FC_FONT_MAP PANGO_FC_IS_FONT_MAP PANGO_FC_TYPE_FONT_MAP pango_fc_font_map_get_type
pangoft2 PANGO_RENDER_TYPE_FT2 PangoFT2SubstituteFunc pango_ft2_render pango_ft2_render_transformed pango_ft2_render_layout_line pango_ft2_render_layout_line_subpixel pango_ft2_render_layout pango_ft2_render_layout_subpixel pango_ft2_font_map_new pango_ft2_font_map_set_resolution pango_ft2_font_map_set_default_substitute pango_ft2_font_map_substitute_changed pango_ft2_font_map_create_context pango_ft2_get_context pango_ft2_font_map_for_display pango_ft2_shutdown_display pango_ft2_get_unknown_glyph pango_ft2_font_get_kerning pango_ft2_font_get_face pango_ft2_font_get_coverage PangoFT2FontMap PANGO_FT2_FONT_MAP PANGO_FT2_IS_FONT_MAP PANGO_FT2_TYPE_FONT_MAP pango_ft2_font_map_get_type
pangohb-private pango_hb_shape
pangowin32 STRICT PANGO_RENDER_TYPE_WIN32 pango_win32_get_context pango_win32_render pango_win32_render_layout_line pango_win32_render_layout pango_win32_render_transformed pango_win32_get_unknown_glyph pango_win32_font_get_glyph_index pango_win32_get_dc pango_win32_get_debug_flag pango_win32_font_select_font pango_win32_font_done_font pango_win32_font_get_metrics_factor pango_win32_font_cache_new pango_win32_font_cache_free pango_win32_font_cache_load pango_win32_font_cache_loadw pango_win32_font_cache_unload pango_win32_font_map_for_display pango_win32_shutdown_display pango_win32_font_map_get_font_cache pango_win32_font_logfont pango_win32_font_logfontw pango_win32_font_description_from_logfont pango_win32_font_description_from_logfontw PangoWin32FontCache
pangoxft PANGO_RENDER_TYPE_XFT PangoXftSubstituteFunc pango_xft_get_font_map pango_xft_get_context pango_xft_shutdown_display pango_xft_set_default_substitute pango_xft_substitute_changed pango_xft_font_get_font pango_xft_font_get_display pango_xft_font_lock_face pango_xft_font_unlock_face pango_xft_font_get_glyph pango_xft_font_has_char pango_xft_font_get_unknown_glyph PangoXftFont PangoXftFontMap PANGO_XFT_FONT PANGO_XFT_FONT_MAP PANGO_XFT_IS_FONT PANGO_XFT_IS_FONT_MAP PANGO_XFT_TYPE_FONT PANGO_XFT_TYPE_FONT_MAP pango_xft_font_get_type pango_xft_font_map_get_type
pangoxft-render PangoXftRenderer PangoXftRenderer PangoXftRendererClass pango_xft_renderer_new pango_xft_renderer_set_draw pango_xft_renderer_set_default_color pango_xft_render pango_xft_picture_render pango_xft_render_transformed pango_xft_render_layout_line pango_xft_render_layout PangoXftRendererPrivate PANGO_XFT_IS_RENDERER PANGO_XFT_IS_RENDERER_CLASS PANGO_XFT_RENDERER PANGO_XFT_RENDERER_CLASS PANGO_XFT_RENDERER_GET_CLASS PANGO_XFT_TYPE_RENDERER pango_xft_renderer_get_type
docs/pango-decl.txt0000664000175000017500000051657614002404351014425 0ustar mclasenmclasen PangoAttrIterator struct _PangoAttrIterator { GPtrArray *attrs; /* From the list */ guint n_attrs; /* Copied from the list */ GPtrArray *attribute_stack; guint attr_index; guint start_index; guint end_index; }; PangoAttrList struct _PangoAttrList { guint ref_count; GPtrArray *attributes; }; PangoColor struct _PangoColor { guint16 red; guint16 green; guint16 blue; }; PANGO_TYPE_COLOR #define PANGO_TYPE_COLOR pango_color_get_type () pango_color_get_type GType void pango_attribute_get_type GType void pango_color_copy PangoColor * const PangoColor *src pango_color_free void PangoColor *color pango_color_parse gboolean PangoColor *color, const char *spec pango_color_parse_with_alpha gboolean PangoColor *color, guint16 *alpha, const char *spec pango_color_to_string gchar * const PangoColor *color PANGO_TYPE_ATTR_LIST #define PANGO_TYPE_ATTR_LIST pango_attr_list_get_type () PangoAttrType typedef enum { PANGO_ATTR_INVALID, /* 0 is an invalid attribute type */ PANGO_ATTR_LANGUAGE, /* PangoAttrLanguage */ PANGO_ATTR_FAMILY, /* PangoAttrString */ PANGO_ATTR_STYLE, /* PangoAttrInt */ PANGO_ATTR_WEIGHT, /* PangoAttrInt */ PANGO_ATTR_VARIANT, /* PangoAttrInt */ PANGO_ATTR_STRETCH, /* PangoAttrInt */ PANGO_ATTR_SIZE, /* PangoAttrSize */ PANGO_ATTR_FONT_DESC, /* PangoAttrFontDesc */ PANGO_ATTR_FOREGROUND, /* PangoAttrColor */ PANGO_ATTR_BACKGROUND, /* PangoAttrColor */ PANGO_ATTR_UNDERLINE, /* PangoAttrInt */ PANGO_ATTR_STRIKETHROUGH, /* PangoAttrInt */ PANGO_ATTR_RISE, /* PangoAttrInt */ PANGO_ATTR_SHAPE, /* PangoAttrShape */ PANGO_ATTR_SCALE, /* PangoAttrFloat */ PANGO_ATTR_FALLBACK, /* PangoAttrInt */ PANGO_ATTR_LETTER_SPACING, /* PangoAttrInt */ PANGO_ATTR_UNDERLINE_COLOR, /* PangoAttrColor */ PANGO_ATTR_STRIKETHROUGH_COLOR,/* PangoAttrColor */ PANGO_ATTR_ABSOLUTE_SIZE, /* PangoAttrSize */ PANGO_ATTR_GRAVITY, /* PangoAttrInt */ PANGO_ATTR_GRAVITY_HINT, /* PangoAttrInt */ PANGO_ATTR_FONT_FEATURES, /* PangoAttrString */ PANGO_ATTR_FOREGROUND_ALPHA, /* PangoAttrInt */ PANGO_ATTR_BACKGROUND_ALPHA, /* PangoAttrInt */ PANGO_ATTR_ALLOW_BREAKS, /* PangoAttrInt */ PANGO_ATTR_SHOW, /* PangoAttrInt */ PANGO_ATTR_INSERT_HYPHENS, /* PangoAttrInt */ PANGO_ATTR_OVERLINE, /* PangoAttrInt */ PANGO_ATTR_OVERLINE_COLOR, /* PangoAttrColor */ } PangoAttrType; PangoUnderline typedef enum { PANGO_UNDERLINE_NONE, PANGO_UNDERLINE_SINGLE, PANGO_UNDERLINE_DOUBLE, PANGO_UNDERLINE_LOW, PANGO_UNDERLINE_ERROR, PANGO_UNDERLINE_SINGLE_LINE, PANGO_UNDERLINE_DOUBLE_LINE, PANGO_UNDERLINE_ERROR_LINE } PangoUnderline; PangoOverline typedef enum { PANGO_OVERLINE_NONE, PANGO_OVERLINE_SINGLE } PangoOverline; PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING #define PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING 0 PANGO_ATTR_INDEX_TO_TEXT_END #define PANGO_ATTR_INDEX_TO_TEXT_END G_MAXUINT PangoAttribute struct _PangoAttribute { const PangoAttrClass *klass; guint start_index; /* in bytes */ guint end_index; /* in bytes. The character at this index is not included */ }; PangoAttrFilterFunc gboolean PangoAttribute *attribute, gpointer user_data PangoAttrDataCopyFunc gpointer gconstpointer user_data PangoAttrClass struct _PangoAttrClass { /*< public >*/ PangoAttrType type; PangoAttribute * (*copy) (const PangoAttribute *attr); void (*destroy) (PangoAttribute *attr); gboolean (*equal) (const PangoAttribute *attr1, const PangoAttribute *attr2); }; PangoAttrString struct _PangoAttrString { PangoAttribute attr; char *value; }; PangoAttrLanguage struct _PangoAttrLanguage { PangoAttribute attr; PangoLanguage *value; }; PangoAttrInt struct _PangoAttrInt { PangoAttribute attr; int value; }; PangoAttrFloat struct _PangoAttrFloat { PangoAttribute attr; double value; }; PangoAttrColor struct _PangoAttrColor { PangoAttribute attr; PangoColor color; }; PangoAttrSize struct _PangoAttrSize { PangoAttribute attr; int size; guint absolute : 1; }; PangoAttrShape struct _PangoAttrShape { PangoAttribute attr; PangoRectangle ink_rect; PangoRectangle logical_rect; gpointer data; PangoAttrDataCopyFunc copy_func; GDestroyNotify destroy_func; }; PangoAttrFontDesc struct _PangoAttrFontDesc { PangoAttribute attr; PangoFontDescription *desc; }; PangoAttrFontFeatures struct _PangoAttrFontFeatures { PangoAttribute attr; gchar *features; }; pango_attr_type_register PangoAttrType const gchar *name pango_attr_type_get_name const char * PangoAttrType type pango_attribute_init void PangoAttribute *attr, const PangoAttrClass *klass pango_attribute_copy PangoAttribute * const PangoAttribute *attr pango_attribute_destroy void PangoAttribute *attr pango_attribute_equal gboolean const PangoAttribute *attr1, const PangoAttribute *attr2 pango_attr_language_new PangoAttribute * PangoLanguage *language pango_attr_family_new PangoAttribute * const char *family pango_attr_foreground_new PangoAttribute * guint16 red, guint16 green, guint16 blue pango_attr_background_new PangoAttribute * guint16 red, guint16 green, guint16 blue pango_attr_size_new PangoAttribute * int size pango_attr_size_new_absolute PangoAttribute * int size pango_attr_style_new PangoAttribute * PangoStyle style pango_attr_weight_new PangoAttribute * PangoWeight weight pango_attr_variant_new PangoAttribute * PangoVariant variant pango_attr_stretch_new PangoAttribute * PangoStretch stretch pango_attr_font_desc_new PangoAttribute * const PangoFontDescription *desc pango_attr_underline_new PangoAttribute * PangoUnderline underline pango_attr_underline_color_new PangoAttribute * guint16 red, guint16 green, guint16 blue pango_attr_strikethrough_new PangoAttribute * gboolean strikethrough pango_attr_strikethrough_color_new PangoAttribute * guint16 red, guint16 green, guint16 blue pango_attr_rise_new PangoAttribute * int rise pango_attr_scale_new PangoAttribute * double scale_factor pango_attr_fallback_new PangoAttribute * gboolean enable_fallback pango_attr_letter_spacing_new PangoAttribute * int letter_spacing pango_attr_shape_new PangoAttribute * const PangoRectangle *ink_rect, const PangoRectangle *logical_rect pango_attr_shape_new_with_data PangoAttribute * const PangoRectangle *ink_rect, const PangoRectangle *logical_rect, gpointer data, PangoAttrDataCopyFunc copy_func, GDestroyNotify destroy_func pango_attr_gravity_new PangoAttribute * PangoGravity gravity pango_attr_gravity_hint_new PangoAttribute * PangoGravityHint hint pango_attr_font_features_new PangoAttribute * const gchar *features pango_attr_foreground_alpha_new PangoAttribute * guint16 alpha pango_attr_background_alpha_new PangoAttribute * guint16 alpha pango_attr_allow_breaks_new PangoAttribute * gboolean allow_breaks pango_attr_insert_hyphens_new PangoAttribute * gboolean insert_hyphens pango_attr_overline_new PangoAttribute * PangoOverline overline pango_attr_overline_color_new PangoAttribute * guint16 red, guint16 green, guint16 blue PangoShowFlags typedef enum { PANGO_SHOW_NONE = 0, PANGO_SHOW_SPACES = 1 << 0, PANGO_SHOW_LINE_BREAKS = 1 << 1, PANGO_SHOW_IGNORABLES = 1 << 2 } PangoShowFlags; pango_attr_show_new PangoAttribute * PangoShowFlags flags pango_attr_list_get_type GType void pango_attr_list_new PangoAttrList * void pango_attr_list_ref PangoAttrList * PangoAttrList *list pango_attr_list_unref void PangoAttrList *list pango_attr_list_copy PangoAttrList * PangoAttrList *list pango_attr_list_insert void PangoAttrList *list, PangoAttribute *attr pango_attr_list_insert_before void PangoAttrList *list, PangoAttribute *attr pango_attr_list_change void PangoAttrList *list, PangoAttribute *attr pango_attr_list_splice void PangoAttrList *list, PangoAttrList *other, gint pos, gint len pango_attr_list_update void PangoAttrList *list, int pos, int remove, int add pango_attr_list_filter PangoAttrList * PangoAttrList *list, PangoAttrFilterFunc func, gpointer data pango_attr_list_get_attributes GSList * PangoAttrList *list pango_attr_list_equal gboolean PangoAttrList *list, PangoAttrList *other_list pango_attr_iterator_get_type GType void pango_attr_list_get_iterator PangoAttrIterator * PangoAttrList *list pango_attr_iterator_range void PangoAttrIterator *iterator, gint *start, gint *end pango_attr_iterator_next gboolean PangoAttrIterator *iterator pango_attr_iterator_copy PangoAttrIterator * PangoAttrIterator *iterator pango_attr_iterator_destroy void PangoAttrIterator *iterator pango_attr_iterator_get PangoAttribute * PangoAttrIterator *iterator, PangoAttrType type pango_attr_iterator_get_font void PangoAttrIterator *iterator, PangoFontDescription *desc, PangoLanguage **language, GSList **extra_attrs pango_attr_iterator_get_attrs GSList * PangoAttrIterator *iterator pango_parse_markup gboolean const char *markup_text, int length, gunichar accel_marker, PangoAttrList **attr_list, char **text, gunichar *accel_char, GError **error pango_markup_parser_new GMarkupParseContext * gunichar accel_marker pango_markup_parser_finish gboolean GMarkupParseContext *context, PangoAttrList **attr_list, char **text, gunichar *accel_char, GError **error PangoAttrIterator PangoAttrList PangoBidiType typedef enum { /* Strong types */ PANGO_BIDI_TYPE_L, PANGO_BIDI_TYPE_LRE, PANGO_BIDI_TYPE_LRO, PANGO_BIDI_TYPE_R, PANGO_BIDI_TYPE_AL, PANGO_BIDI_TYPE_RLE, PANGO_BIDI_TYPE_RLO, /* Weak types */ PANGO_BIDI_TYPE_PDF, PANGO_BIDI_TYPE_EN, PANGO_BIDI_TYPE_ES, PANGO_BIDI_TYPE_ET, PANGO_BIDI_TYPE_AN, PANGO_BIDI_TYPE_CS, PANGO_BIDI_TYPE_NSM, PANGO_BIDI_TYPE_BN, /* Neutral types */ PANGO_BIDI_TYPE_B, PANGO_BIDI_TYPE_S, PANGO_BIDI_TYPE_WS, PANGO_BIDI_TYPE_ON } PangoBidiType; pango_bidi_type_for_unichar PangoBidiType gunichar ch pango_unichar_direction PangoDirection gunichar ch pango_find_base_dir PangoDirection const gchar *text, gint length pango_get_mirror_char gboolean gunichar ch, gunichar *mirrored_ch PangoLogAttr struct _PangoLogAttr { guint is_line_break : 1; guint is_mandatory_break : 1; guint is_char_break : 1; guint is_white : 1; guint is_cursor_position : 1; guint is_word_start : 1; guint is_word_end : 1; guint is_sentence_boundary : 1; guint is_sentence_start : 1; guint is_sentence_end : 1; guint backspace_deletes_character : 1; guint is_expandable_space : 1; guint is_word_boundary : 1; }; pango_break void const gchar *text, int length, PangoAnalysis *analysis, PangoLogAttr *attrs, int attrs_len pango_find_paragraph_boundary void const gchar *text, gint length, gint *paragraph_delimiter_index, gint *next_paragraph_start pango_get_log_attrs void const char *text, int length, int level, PangoLanguage *language, PangoLogAttr *log_attrs, int attrs_len pango_default_break void const gchar *text, int length, PangoAnalysis *analysis, PangoLogAttr *attrs, int attrs_len pango_tailor_break void const char *text, int length, PangoAnalysis *analysis, int offset, PangoLogAttr *log_attrs, int log_attrs_len PANGO_TYPE_CONTEXT #define PANGO_TYPE_CONTEXT (pango_context_get_type ()) PANGO_CONTEXT #define PANGO_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CONTEXT, PangoContext)) PANGO_CONTEXT_CLASS #define PANGO_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_CONTEXT, PangoContextClass)) PANGO_IS_CONTEXT #define PANGO_IS_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CONTEXT)) PANGO_IS_CONTEXT_CLASS #define PANGO_IS_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_CONTEXT)) PANGO_CONTEXT_GET_CLASS #define PANGO_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_CONTEXT, PangoContextClass)) pango_context_get_type GType void pango_context_new PangoContext * void pango_context_changed void PangoContext *context pango_context_set_font_map void PangoContext *context, PangoFontMap *font_map pango_context_get_font_map PangoFontMap * PangoContext *context pango_context_get_serial guint PangoContext *context pango_context_list_families void PangoContext *context, PangoFontFamily ***families, int *n_families pango_context_load_font PangoFont * PangoContext *context, const PangoFontDescription *desc pango_context_load_fontset PangoFontset * PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language pango_context_get_metrics PangoFontMetrics * PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language pango_context_set_font_description void PangoContext *context, const PangoFontDescription *desc pango_context_get_font_description PangoFontDescription * PangoContext *context pango_context_get_language PangoLanguage * PangoContext *context pango_context_set_language void PangoContext *context, PangoLanguage *language pango_context_set_base_dir void PangoContext *context, PangoDirection direction pango_context_get_base_dir PangoDirection PangoContext *context pango_context_set_base_gravity void PangoContext *context, PangoGravity gravity pango_context_get_base_gravity PangoGravity PangoContext *context pango_context_get_gravity PangoGravity PangoContext *context pango_context_set_gravity_hint void PangoContext *context, PangoGravityHint hint pango_context_get_gravity_hint PangoGravityHint PangoContext *context pango_context_set_matrix void PangoContext *context, const PangoMatrix *matrix pango_context_get_matrix const PangoMatrix * PangoContext *context pango_context_set_round_glyph_positions void PangoContext *context, gboolean round_positions pango_context_get_round_glyph_positions gboolean PangoContext *context pango_itemize GList * PangoContext *context, const char *text, int start_index, int length, PangoAttrList *attrs, PangoAttrIterator *cached_iter pango_itemize_with_base_dir GList * PangoContext *context, PangoDirection base_dir, const char *text, int start_index, int length, PangoAttrList *attrs, PangoAttrIterator *cached_iter PangoContextClass PangoCoverageLevel typedef enum { PANGO_COVERAGE_NONE, PANGO_COVERAGE_FALLBACK, PANGO_COVERAGE_APPROXIMATE, PANGO_COVERAGE_EXACT } PangoCoverageLevel; pango_coverage_get_type GType void pango_coverage_new PangoCoverage * void pango_coverage_ref PangoCoverage * PangoCoverage *coverage pango_coverage_unref void PangoCoverage *coverage pango_coverage_copy PangoCoverage * PangoCoverage *coverage pango_coverage_get PangoCoverageLevel PangoCoverage *coverage, int index_ pango_coverage_set void PangoCoverage *coverage, int index_, PangoCoverageLevel level pango_coverage_max void PangoCoverage *coverage, PangoCoverage *other pango_coverage_to_bytes void PangoCoverage *coverage, guchar **bytes, int *n_bytes pango_coverage_from_bytes PangoCoverage * guchar *bytes, int n_bytes PangoCoverage PangoDirection typedef enum { PANGO_DIRECTION_LTR, PANGO_DIRECTION_RTL, PANGO_DIRECTION_TTB_LTR, PANGO_DIRECTION_TTB_RTL, PANGO_DIRECTION_WEAK_LTR, PANGO_DIRECTION_WEAK_RTL, PANGO_DIRECTION_NEUTRAL } PangoDirection; Interval struct Interval { gunichar start, end; }; PANGO_RENDER_TYPE_NONE #define PANGO_RENDER_TYPE_NONE "PangoRenderNone" PANGO_TYPE_ENGINE #define PANGO_TYPE_ENGINE (pango_engine_get_type ()) PANGO_ENGINE #define PANGO_ENGINE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_ENGINE, PangoEngine)) PANGO_IS_ENGINE #define PANGO_IS_ENGINE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_ENGINE)) PANGO_ENGINE_CLASS #define PANGO_ENGINE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_ENGINE, PangoEngineClass)) PANGO_IS_ENGINE_CLASS #define PANGO_IS_ENGINE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_ENGINE)) PANGO_ENGINE_GET_CLASS #define PANGO_ENGINE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_ENGINE, PangoEngineClass)) PangoEngine struct _PangoEngine { /*< private >*/ GObject parent_instance; }; PangoEngineClass struct _PangoEngineClass { /*< private >*/ GObjectClass parent_class; }; pango_engine_get_type GType void PANGO_ENGINE_TYPE_LANG #define PANGO_ENGINE_TYPE_LANG "PangoEngineLang" PANGO_TYPE_ENGINE_LANG #define PANGO_TYPE_ENGINE_LANG (pango_engine_lang_get_type ()) PANGO_ENGINE_LANG #define PANGO_ENGINE_LANG(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_ENGINE_LANG, PangoEngineLang)) PANGO_IS_ENGINE_LANG #define PANGO_IS_ENGINE_LANG(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_ENGINE_LANG)) PANGO_ENGINE_LANG_CLASS #define PANGO_ENGINE_LANG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_ENGINE_LANG, PangoEngineLangClass)) PANGO_IS_ENGINE_LANG_CLASS #define PANGO_IS_ENGINE_LANG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_ENGINE_LANG)) PANGO_ENGINE_LANG_GET_CLASS #define PANGO_ENGINE_LANG_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_ENGINE_LANG, PangoEngineLangClass)) PangoEngineLang struct _PangoEngineLang { /*< private >*/ PangoEngine parent_instance; }; PangoEngineLangClass struct _PangoEngineLangClass { /*< private >*/ PangoEngineClass parent_class; /*< public >*/ void (*script_break) (PangoEngineLang *engine, const char *text, int len, PangoAnalysis *analysis, PangoLogAttr *attrs, int attrs_len); }; pango_engine_lang_get_type GType void PANGO_ENGINE_TYPE_SHAPE #define PANGO_ENGINE_TYPE_SHAPE "PangoEngineShape" PANGO_TYPE_ENGINE_SHAPE #define PANGO_TYPE_ENGINE_SHAPE (pango_engine_shape_get_type ()) PANGO_ENGINE_SHAPE #define PANGO_ENGINE_SHAPE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_ENGINE_SHAPE, PangoEngineShape)) PANGO_IS_ENGINE_SHAPE #define PANGO_IS_ENGINE_SHAPE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_ENGINE_SHAPE)) PANGO_ENGINE_SHAPE_CLASS #define PANGO_ENGINE_SHAPE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_ENGINE_SHAPE, PangoEngine_ShapeClass)) PANGO_IS_ENGINE_SHAPE_CLASS #define PANGO_IS_ENGINE_SHAPE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_ENGINE_SHAPE)) PANGO_ENGINE_SHAPE_GET_CLASS #define PANGO_ENGINE_SHAPE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_ENGINE_SHAPE, PangoEngineShapeClass)) PangoEngineShape struct _PangoEngineShape { PangoEngine parent_instance; }; PangoEngineShapeClass struct _PangoEngineShapeClass { /*< private >*/ PangoEngineClass parent_class; /*< public >*/ void (*script_shape) (PangoEngineShape *engine, PangoFont *font, const char *item_text, unsigned int item_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs, const char *paragraph_text, unsigned int paragraph_length); PangoCoverageLevel (*covers) (PangoEngineShape *engine, PangoFont *font, PangoLanguage *language, gunichar wc); }; pango_engine_shape_get_type GType void PangoEngineScriptInfo struct _PangoEngineScriptInfo { PangoScript script; const gchar *langs; }; PangoEngineInfo struct _PangoEngineInfo { const gchar *id; const gchar *engine_type; const gchar *render_type; PangoEngineScriptInfo *scripts; gint n_scripts; }; script_engine_list void PangoEngineInfo **engines, int *n_engines script_engine_init void GTypeModule *module script_engine_exit void void script_engine_create PangoEngine * const char *id PANGO_ENGINE_DEFINE_TYPE #define PANGO_ENGINE_DEFINE_TYPE(name, prefix, class_init, instance_init, parent_type) \ static GType prefix ## _type; \ static void \ prefix ## _register_type (GTypeModule *module) \ { \ const GTypeInfo object_info = \ { \ sizeof (name ## Class), \ (GBaseInitFunc) NULL, \ (GBaseFinalizeFunc) NULL, \ (GClassInitFunc) class_init, \ (GClassFinalizeFunc) NULL, \ NULL, /* class_data */ \ sizeof (name), \ 0, /* n_prelocs */ \ (GInstanceInitFunc) instance_init, \ NULL /* value_table */ \ }; \ \ prefix ## _type = g_type_module_register_type (module, parent_type, \ # name, \ &object_info, 0); \ } PANGO_ENGINE_LANG_DEFINE_TYPE #define PANGO_ENGINE_LANG_DEFINE_TYPE(name, prefix, class_init, instance_init) \ PANGO_ENGINE_DEFINE_TYPE (name, prefix, \ class_init, instance_init, \ PANGO_TYPE_ENGINE_LANG) PANGO_ENGINE_SHAPE_DEFINE_TYPE #define PANGO_ENGINE_SHAPE_DEFINE_TYPE(name, prefix, class_init, instance_init) \ PANGO_ENGINE_DEFINE_TYPE (name, prefix, \ class_init, instance_init, \ PANGO_TYPE_ENGINE_SHAPE) PANGO_MODULE_ENTRY #define PANGO_MODULE_ENTRY(func) _PANGO_MODULE_ENTRY2(PANGO_MODULE_PREFIX,func) PangoStyle typedef enum { PANGO_STYLE_NORMAL, PANGO_STYLE_OBLIQUE, PANGO_STYLE_ITALIC } PangoStyle; PangoVariant typedef enum { PANGO_VARIANT_NORMAL, PANGO_VARIANT_SMALL_CAPS } PangoVariant; PangoWeight typedef enum { PANGO_WEIGHT_THIN = 100, PANGO_WEIGHT_ULTRALIGHT = 200, PANGO_WEIGHT_LIGHT = 300, PANGO_WEIGHT_SEMILIGHT = 350, PANGO_WEIGHT_BOOK = 380, PANGO_WEIGHT_NORMAL = 400, PANGO_WEIGHT_MEDIUM = 500, PANGO_WEIGHT_SEMIBOLD = 600, PANGO_WEIGHT_BOLD = 700, PANGO_WEIGHT_ULTRABOLD = 800, PANGO_WEIGHT_HEAVY = 900, PANGO_WEIGHT_ULTRAHEAVY = 1000 } PangoWeight; PangoStretch typedef enum { PANGO_STRETCH_ULTRA_CONDENSED, PANGO_STRETCH_EXTRA_CONDENSED, PANGO_STRETCH_CONDENSED, PANGO_STRETCH_SEMI_CONDENSED, PANGO_STRETCH_NORMAL, PANGO_STRETCH_SEMI_EXPANDED, PANGO_STRETCH_EXPANDED, PANGO_STRETCH_EXTRA_EXPANDED, PANGO_STRETCH_ULTRA_EXPANDED } PangoStretch; PangoFontMask typedef enum { PANGO_FONT_MASK_FAMILY = 1 << 0, PANGO_FONT_MASK_STYLE = 1 << 1, PANGO_FONT_MASK_VARIANT = 1 << 2, PANGO_FONT_MASK_WEIGHT = 1 << 3, PANGO_FONT_MASK_STRETCH = 1 << 4, PANGO_FONT_MASK_SIZE = 1 << 5, PANGO_FONT_MASK_GRAVITY = 1 << 6, PANGO_FONT_MASK_VARIATIONS = 1 << 7, } PangoFontMask; PANGO_SCALE_XX_SMALL #define PANGO_SCALE_XX_SMALL ((double)0.5787037037037) PANGO_SCALE_X_SMALL #define PANGO_SCALE_X_SMALL ((double)0.6944444444444) PANGO_SCALE_SMALL #define PANGO_SCALE_SMALL ((double)0.8333333333333) PANGO_SCALE_MEDIUM #define PANGO_SCALE_MEDIUM ((double)1.0) PANGO_SCALE_LARGE #define PANGO_SCALE_LARGE ((double)1.2) PANGO_SCALE_X_LARGE #define PANGO_SCALE_X_LARGE ((double)1.44) PANGO_SCALE_XX_LARGE #define PANGO_SCALE_XX_LARGE ((double)1.728) PANGO_TYPE_FONT_DESCRIPTION #define PANGO_TYPE_FONT_DESCRIPTION (pango_font_description_get_type ()) pango_font_description_get_type GType void pango_font_description_new PangoFontDescription * void pango_font_description_copy PangoFontDescription * const PangoFontDescription *desc pango_font_description_copy_static PangoFontDescription * const PangoFontDescription *desc pango_font_description_hash guint const PangoFontDescription *desc pango_font_description_equal gboolean const PangoFontDescription *desc1, const PangoFontDescription *desc2 pango_font_description_free void PangoFontDescription *desc pango_font_descriptions_free void PangoFontDescription **descs, int n_descs pango_font_description_set_family void PangoFontDescription *desc, const char *family pango_font_description_set_family_static void PangoFontDescription *desc, const char *family pango_font_description_get_family const char * const PangoFontDescription *desc pango_font_description_set_style void PangoFontDescription *desc, PangoStyle style pango_font_description_get_style PangoStyle const PangoFontDescription *desc pango_font_description_set_variant void PangoFontDescription *desc, PangoVariant variant pango_font_description_get_variant PangoVariant const PangoFontDescription *desc pango_font_description_set_weight void PangoFontDescription *desc, PangoWeight weight pango_font_description_get_weight PangoWeight const PangoFontDescription *desc pango_font_description_set_stretch void PangoFontDescription *desc, PangoStretch stretch pango_font_description_get_stretch PangoStretch const PangoFontDescription *desc pango_font_description_set_size void PangoFontDescription *desc, gint size pango_font_description_get_size gint const PangoFontDescription *desc pango_font_description_set_absolute_size void PangoFontDescription *desc, double size pango_font_description_get_size_is_absolute gboolean const PangoFontDescription *desc pango_font_description_set_gravity void PangoFontDescription *desc, PangoGravity gravity pango_font_description_get_gravity PangoGravity const PangoFontDescription *desc pango_font_description_set_variations_static void PangoFontDescription *desc, const char *variations pango_font_description_set_variations void PangoFontDescription *desc, const char *variations pango_font_description_get_variations const char * const PangoFontDescription *desc pango_font_description_get_set_fields PangoFontMask const PangoFontDescription *desc pango_font_description_unset_fields void PangoFontDescription *desc, PangoFontMask to_unset pango_font_description_merge void PangoFontDescription *desc, const PangoFontDescription *desc_to_merge, gboolean replace_existing pango_font_description_merge_static void PangoFontDescription *desc, const PangoFontDescription *desc_to_merge, gboolean replace_existing pango_font_description_better_match gboolean const PangoFontDescription *desc, const PangoFontDescription *old_match, const PangoFontDescription *new_match pango_font_description_from_string PangoFontDescription * const char *str pango_font_description_to_string char * const PangoFontDescription *desc pango_font_description_to_filename char * const PangoFontDescription *desc PANGO_TYPE_FONT_METRICS #define PANGO_TYPE_FONT_METRICS (pango_font_metrics_get_type ()) PangoFontMetrics struct _PangoFontMetrics { /* */ guint ref_count; int ascent; int descent; int height; int approximate_char_width; int approximate_digit_width; int underline_position; int underline_thickness; int strikethrough_position; int strikethrough_thickness; }; pango_font_metrics_get_type GType void pango_font_metrics_ref PangoFontMetrics * PangoFontMetrics *metrics pango_font_metrics_unref void PangoFontMetrics *metrics pango_font_metrics_get_ascent int PangoFontMetrics *metrics pango_font_metrics_get_descent int PangoFontMetrics *metrics pango_font_metrics_get_height int PangoFontMetrics *metrics pango_font_metrics_get_approximate_char_width int PangoFontMetrics *metrics pango_font_metrics_get_approximate_digit_width int PangoFontMetrics *metrics pango_font_metrics_get_underline_position int PangoFontMetrics *metrics pango_font_metrics_get_underline_thickness int PangoFontMetrics *metrics pango_font_metrics_get_strikethrough_position int PangoFontMetrics *metrics pango_font_metrics_get_strikethrough_thickness int PangoFontMetrics *metrics PANGO_TYPE_FONT_FAMILY #define PANGO_TYPE_FONT_FAMILY (pango_font_family_get_type ()) PANGO_FONT_FAMILY #define PANGO_FONT_FAMILY(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONT_FAMILY, PangoFontFamily)) PANGO_IS_FONT_FAMILY #define PANGO_IS_FONT_FAMILY(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONT_FAMILY)) PANGO_FONT_FAMILY_CLASS #define PANGO_FONT_FAMILY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_FAMILY, PangoFontFamilyClass)) PANGO_IS_FONT_FAMILY_CLASS #define PANGO_IS_FONT_FAMILY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_FAMILY)) PANGO_FONT_FAMILY_GET_CLASS #define PANGO_FONT_FAMILY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_FAMILY, PangoFontFamilyClass)) PangoFontFamily struct _PangoFontFamily { GObject parent_instance; }; PangoFontFamilyClass struct _PangoFontFamilyClass { GObjectClass parent_class; /*< public >*/ void (*list_faces) (PangoFontFamily *family, PangoFontFace ***faces, int *n_faces); const char * (*get_name) (PangoFontFamily *family); gboolean (*is_monospace) (PangoFontFamily *family); gboolean (*is_variable) (PangoFontFamily *family); PangoFontFace * (*get_face) (PangoFontFamily *family, const char *name); /*< private >*/ /* Padding for future expansion */ void (*_pango_reserved2) (void); }; pango_font_family_get_type GType void pango_font_family_list_faces void PangoFontFamily *family, PangoFontFace ***faces, int *n_faces pango_font_family_get_name const char * PangoFontFamily *family pango_font_family_is_monospace gboolean PangoFontFamily *family pango_font_family_is_variable gboolean PangoFontFamily *family pango_font_family_get_face PangoFontFace * PangoFontFamily *family, const char *name PANGO_TYPE_FONT_FACE #define PANGO_TYPE_FONT_FACE (pango_font_face_get_type ()) PANGO_FONT_FACE #define PANGO_FONT_FACE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONT_FACE, PangoFontFace)) PANGO_IS_FONT_FACE #define PANGO_IS_FONT_FACE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONT_FACE)) PANGO_FONT_FACE_CLASS #define PANGO_FONT_FACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_FACE, PangoFontFaceClass)) PANGO_IS_FONT_FACE_CLASS #define PANGO_IS_FONT_FACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_FACE)) PANGO_FONT_FACE_GET_CLASS #define PANGO_FONT_FACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_FACE, PangoFontFaceClass)) PangoFontFace struct _PangoFontFace { GObject parent_instance; }; PangoFontFaceClass struct _PangoFontFaceClass { GObjectClass parent_class; /*< public >*/ const char * (*get_face_name) (PangoFontFace *face); PangoFontDescription * (*describe) (PangoFontFace *face); void (*list_sizes) (PangoFontFace *face, int **sizes, int *n_sizes); gboolean (*is_synthesized) (PangoFontFace *face); PangoFontFamily * (*get_family) (PangoFontFace *face); /*< private >*/ /* Padding for future expansion */ void (*_pango_reserved3) (void); void (*_pango_reserved4) (void); }; pango_font_face_get_type GType void pango_font_face_describe PangoFontDescription * PangoFontFace *face pango_font_face_get_face_name const char * PangoFontFace *face pango_font_face_list_sizes void PangoFontFace *face, int **sizes, int *n_sizes pango_font_face_is_synthesized gboolean PangoFontFace *face pango_font_face_get_family PangoFontFamily * PangoFontFace *face PANGO_TYPE_FONT #define PANGO_TYPE_FONT (pango_font_get_type ()) PANGO_FONT #define PANGO_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONT, PangoFont)) PANGO_IS_FONT #define PANGO_IS_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONT)) PANGO_FONT_CLASS #define PANGO_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT, PangoFontClass)) PANGO_IS_FONT_CLASS #define PANGO_IS_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT)) PANGO_FONT_GET_CLASS #define PANGO_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT, PangoFontClass)) PangoFont struct _PangoFont { GObject parent_instance; }; PangoFontClass struct _PangoFontClass { GObjectClass parent_class; /*< public >*/ PangoFontDescription *(*describe) (PangoFont *font); PangoCoverage * (*get_coverage) (PangoFont *font, PangoLanguage *language); void (*get_glyph_extents) (PangoFont *font, PangoGlyph glyph, PangoRectangle *ink_rect, PangoRectangle *logical_rect); PangoFontMetrics * (*get_metrics) (PangoFont *font, PangoLanguage *language); PangoFontMap * (*get_font_map) (PangoFont *font); PangoFontDescription *(*describe_absolute) (PangoFont *font); void (*get_features) (PangoFont *font, hb_feature_t *features, guint len, guint *num_features); hb_font_t * (*create_hb_font) (PangoFont *font); }; pango_font_get_type GType void pango_font_describe PangoFontDescription * PangoFont *font pango_font_describe_with_absolute_size PangoFontDescription * PangoFont *font pango_font_get_coverage PangoCoverage * PangoFont *font, PangoLanguage *language pango_font_find_shaper PangoEngineShape * PangoFont *font, PangoLanguage *language, guint32 ch pango_font_get_metrics PangoFontMetrics * PangoFont *font, PangoLanguage *language pango_font_get_glyph_extents void PangoFont *font, PangoGlyph glyph, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_font_get_font_map PangoFontMap * PangoFont *font pango_font_get_face PangoFontFace * PangoFont *font pango_font_has_char gboolean PangoFont *font, gunichar wc pango_font_get_features void PangoFont *font, hb_feature_t *features, guint len, guint *num_features pango_font_get_hb_font hb_font_t * PangoFont *font PANGO_GLYPH_EMPTY #define PANGO_GLYPH_EMPTY ((PangoGlyph)0x0FFFFFFF) PANGO_GLYPH_INVALID_INPUT #define PANGO_GLYPH_INVALID_INPUT ((PangoGlyph)0xFFFFFFFF) PANGO_GLYPH_UNKNOWN_FLAG #define PANGO_GLYPH_UNKNOWN_FLAG ((PangoGlyph)0x10000000) PANGO_GET_UNKNOWN_GLYPH #define PANGO_GET_UNKNOWN_GLYPH(wc) ((PangoGlyph)(wc)|PANGO_GLYPH_UNKNOWN_FLAG) PANGO_UNKNOWN_GLYPH_WIDTH #define PANGO_UNKNOWN_GLYPH_WIDTH 10 PANGO_UNKNOWN_GLYPH_HEIGHT #define PANGO_UNKNOWN_GLYPH_HEIGHT 14 PangoFontDescription PANGO_TYPE_FONT_MAP #define PANGO_TYPE_FONT_MAP (pango_font_map_get_type ()) PANGO_FONT_MAP #define PANGO_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONT_MAP, PangoFontMap)) PANGO_IS_FONT_MAP #define PANGO_IS_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONT_MAP)) PANGO_FONT_MAP_CLASS #define PANGO_FONT_MAP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_MAP, PangoFontMapClass)) PANGO_IS_FONT_MAP_CLASS #define PANGO_IS_FONT_MAP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_MAP)) PANGO_FONT_MAP_GET_CLASS #define PANGO_FONT_MAP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_MAP, PangoFontMapClass)) PangoFontMap struct _PangoFontMap { GObject parent_instance; }; PangoFontMapClass struct _PangoFontMapClass { GObjectClass parent_class; /*< public >*/ PangoFont * (*load_font) (PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc); void (*list_families) (PangoFontMap *fontmap, PangoFontFamily ***families, int *n_families); PangoFontset *(*load_fontset) (PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language); const char *shape_engine_type; guint (*get_serial) (PangoFontMap *fontmap); void (*changed) (PangoFontMap *fontmap); PangoFontFamily * (*get_family) (PangoFontMap *fontmap, const char *name); PangoFontFace * (*get_face) (PangoFontMap *fontmap, PangoFont *font); }; pango_font_map_get_type GType void pango_font_map_create_context PangoContext * PangoFontMap *fontmap pango_font_map_load_font PangoFont * PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc pango_font_map_load_fontset PangoFontset * PangoFontMap *fontmap, PangoContext *context, const PangoFontDescription *desc, PangoLanguage *language pango_font_map_list_families void PangoFontMap *fontmap, PangoFontFamily ***families, int *n_families pango_font_map_get_serial guint PangoFontMap *fontmap pango_font_map_changed void PangoFontMap *fontmap pango_font_map_get_family PangoFontFamily * PangoFontMap *fontmap, const char *name PangoContext PANGO_TYPE_FONTSET #define PANGO_TYPE_FONTSET (pango_fontset_get_type ()) PANGO_FONTSET #define PANGO_FONTSET(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONTSET, PangoFontset)) PANGO_IS_FONTSET #define PANGO_IS_FONTSET(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONTSET)) PANGO_FONTSET_CLASS #define PANGO_FONTSET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONTSET, PangoFontsetClass)) PANGO_IS_FONTSET_CLASS #define PANGO_IS_FONTSET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONTSET)) PANGO_FONTSET_GET_CLASS #define PANGO_FONTSET_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONTSET, PangoFontsetClass)) pango_fontset_get_type GType void PangoFontsetForeachFunc gboolean PangoFontset *fontset, PangoFont *font, gpointer user_data PangoFontset struct _PangoFontset { GObject parent_instance; }; PangoFontsetClass struct _PangoFontsetClass { GObjectClass parent_class; /*< public >*/ PangoFont * (*get_font) (PangoFontset *fontset, guint wc); PangoFontMetrics *(*get_metrics) (PangoFontset *fontset); PangoLanguage * (*get_language) (PangoFontset *fontset); void (*foreach) (PangoFontset *fontset, PangoFontsetForeachFunc func, gpointer data); /*< private >*/ /* Padding for future expansion */ void (*_pango_reserved1) (void); void (*_pango_reserved2) (void); void (*_pango_reserved3) (void); void (*_pango_reserved4) (void); }; PANGO_TYPE_FONTSET_SIMPLE #define PANGO_TYPE_FONTSET_SIMPLE (pango_fontset_simple_get_type ()) PANGO_FONTSET_SIMPLE #define PANGO_FONTSET_SIMPLE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONTSET_SIMPLE, PangoFontsetSimple)) PANGO_IS_FONTSET_SIMPLE #define PANGO_IS_FONTSET_SIMPLE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONTSET_SIMPLE)) pango_fontset_simple_get_type GType void pango_fontset_simple_new PangoFontsetSimple * PangoLanguage *language pango_fontset_simple_append void PangoFontsetSimple *fontset, PangoFont *font pango_fontset_simple_size int PangoFontsetSimple *fontset pango_fontset_get_font PangoFont * PangoFontset *fontset, guint wc pango_fontset_get_metrics PangoFontMetrics * PangoFontset *fontset pango_fontset_foreach void PangoFontset *fontset, PangoFontsetForeachFunc func, gpointer data PangoFontsetSimple PangoFontsetSimpleClass PangoGlyphItem struct _PangoGlyphItem { PangoItem *item; PangoGlyphString *glyphs; }; PANGO_TYPE_GLYPH_ITEM #define PANGO_TYPE_GLYPH_ITEM (pango_glyph_item_get_type ()) pango_glyph_item_get_type GType void pango_glyph_item_split PangoGlyphItem * PangoGlyphItem *orig, const char *text, int split_index pango_glyph_item_copy PangoGlyphItem * PangoGlyphItem *orig pango_glyph_item_free void PangoGlyphItem *glyph_item pango_glyph_item_apply_attrs GSList * PangoGlyphItem *glyph_item, const char *text, PangoAttrList *list pango_glyph_item_letter_space void PangoGlyphItem *glyph_item, const char *text, PangoLogAttr *log_attrs, int letter_spacing pango_glyph_item_get_logical_widths void PangoGlyphItem *glyph_item, const char *text, int *logical_widths PangoGlyphItemIter struct _PangoGlyphItemIter { PangoGlyphItem *glyph_item; const gchar *text; int start_glyph; int start_index; int start_char; int end_glyph; int end_index; int end_char; }; PANGO_TYPE_GLYPH_ITEM_ITER #define PANGO_TYPE_GLYPH_ITEM_ITER (pango_glyph_item_iter_get_type ()) pango_glyph_item_iter_get_type GType void pango_glyph_item_iter_copy PangoGlyphItemIter * PangoGlyphItemIter *orig pango_glyph_item_iter_free void PangoGlyphItemIter *iter pango_glyph_item_iter_init_start gboolean PangoGlyphItemIter *iter, PangoGlyphItem *glyph_item, const char *text pango_glyph_item_iter_init_end gboolean PangoGlyphItemIter *iter, PangoGlyphItem *glyph_item, const char *text pango_glyph_item_iter_next_cluster gboolean PangoGlyphItemIter *iter pango_glyph_item_iter_prev_cluster gboolean PangoGlyphItemIter *iter PangoGlyphUnit typedef gint32 PangoGlyphUnit; PangoGlyphGeometry struct _PangoGlyphGeometry { PangoGlyphUnit width; PangoGlyphUnit x_offset; PangoGlyphUnit y_offset; }; PangoGlyphVisAttr struct _PangoGlyphVisAttr { guint is_cluster_start : 1; }; PangoGlyphInfo struct _PangoGlyphInfo { PangoGlyph glyph; PangoGlyphGeometry geometry; PangoGlyphVisAttr attr; }; PangoGlyphString struct _PangoGlyphString { gint num_glyphs; PangoGlyphInfo *glyphs; gint *log_clusters; /*< private >*/ gint space; }; PANGO_TYPE_GLYPH_STRING #define PANGO_TYPE_GLYPH_STRING (pango_glyph_string_get_type ()) pango_glyph_string_new PangoGlyphString * void pango_glyph_string_set_size void PangoGlyphString *string, gint new_len pango_glyph_string_get_type GType void pango_glyph_string_copy PangoGlyphString * PangoGlyphString *string pango_glyph_string_free void PangoGlyphString *string pango_glyph_string_extents void PangoGlyphString *glyphs, PangoFont *font, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_glyph_string_get_width int PangoGlyphString *glyphs pango_glyph_string_extents_range void PangoGlyphString *glyphs, int start, int end, PangoFont *font, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_glyph_string_get_logical_widths void PangoGlyphString *glyphs, const char *text, int length, int embedding_level, int *logical_widths pango_glyph_string_index_to_x void PangoGlyphString *glyphs, char *text, int length, PangoAnalysis *analysis, int index_, gboolean trailing, int *x_pos pango_glyph_string_x_to_index void PangoGlyphString *glyphs, char *text, int length, PangoAnalysis *analysis, int x_pos, int *index_, int *trailing pango_shape void const char *text, int length, const PangoAnalysis *analysis, PangoGlyphString *glyphs pango_shape_full void const char *item_text, int item_length, const char *paragraph_text, int paragraph_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs PangoShapeFlags typedef enum { PANGO_SHAPE_NONE = 0, PANGO_SHAPE_ROUND_POSITIONS = 1 << 0, } PangoShapeFlags; pango_shape_with_flags void const char *item_text, int item_length, const char *paragraph_text, int paragraph_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs, PangoShapeFlags flags pango_reorder_items GList * GList *logical_items PangoGravity typedef enum { PANGO_GRAVITY_SOUTH, PANGO_GRAVITY_EAST, PANGO_GRAVITY_NORTH, PANGO_GRAVITY_WEST, PANGO_GRAVITY_AUTO } PangoGravity; PangoGravityHint typedef enum { PANGO_GRAVITY_HINT_NATURAL, PANGO_GRAVITY_HINT_STRONG, PANGO_GRAVITY_HINT_LINE } PangoGravityHint; PANGO_GRAVITY_IS_VERTICAL #define PANGO_GRAVITY_IS_VERTICAL(gravity) \ ((gravity) == PANGO_GRAVITY_EAST || (gravity) == PANGO_GRAVITY_WEST) PANGO_GRAVITY_IS_IMPROPER #define PANGO_GRAVITY_IS_IMPROPER(gravity) \ ((gravity) == PANGO_GRAVITY_WEST || (gravity) == PANGO_GRAVITY_NORTH) pango_gravity_to_rotation double PangoGravity gravity pango_gravity_get_for_matrix PangoGravity const PangoMatrix *matrix pango_gravity_get_for_script PangoGravity PangoScript script, PangoGravity base_gravity, PangoGravityHint hint pango_gravity_get_for_script_and_width PangoGravity PangoScript script, gboolean wide, PangoGravity base_gravity, PangoGravityHint hint PANGO_ANALYSIS_FLAG_CENTERED_BASELINE #define PANGO_ANALYSIS_FLAG_CENTERED_BASELINE (1 << 0) PANGO_ANALYSIS_FLAG_IS_ELLIPSIS #define PANGO_ANALYSIS_FLAG_IS_ELLIPSIS (1 << 1) PANGO_ANALYSIS_FLAG_NEED_HYPHEN #define PANGO_ANALYSIS_FLAG_NEED_HYPHEN (1 << 2) PangoAnalysis struct _PangoAnalysis { PangoEngineShape *shape_engine; PangoEngineLang *lang_engine; PangoFont *font; guint8 level; guint8 gravity; guint8 flags; guint8 script; PangoLanguage *language; GSList *extra_attrs; }; PangoItem struct _PangoItem { gint offset; gint length; gint num_chars; PangoAnalysis analysis; }; PANGO_TYPE_ITEM #define PANGO_TYPE_ITEM (pango_item_get_type ()) pango_item_get_type GType void pango_item_new PangoItem * void pango_item_copy PangoItem * PangoItem *item pango_item_free void PangoItem *item pango_item_split PangoItem * PangoItem *orig, int split_index, int split_offset pango_item_apply_attrs void PangoItem *item, PangoAttrIterator *iter PANGO_TYPE_LANGUAGE #define PANGO_TYPE_LANGUAGE (pango_language_get_type ()) pango_language_get_type GType void pango_language_from_string PangoLanguage * const char *language pango_language_to_string const char * PangoLanguage *language pango_language_get_sample_string const char * PangoLanguage *language pango_language_get_default PangoLanguage * void pango_language_get_preferred PangoLanguage ** void pango_language_matches gboolean PangoLanguage *language, const char *range_list pango_language_includes_script gboolean PangoLanguage *language, PangoScript script pango_language_get_scripts const PangoScript * PangoLanguage *language, int *num_scripts PangoLanguage PangoLayoutRun typedef PangoGlyphItem PangoLayoutRun; PangoAlignment typedef enum { PANGO_ALIGN_LEFT, PANGO_ALIGN_CENTER, PANGO_ALIGN_RIGHT } PangoAlignment; PangoWrapMode typedef enum { PANGO_WRAP_WORD, PANGO_WRAP_CHAR, PANGO_WRAP_WORD_CHAR } PangoWrapMode; PangoEllipsizeMode typedef enum { PANGO_ELLIPSIZE_NONE, PANGO_ELLIPSIZE_START, PANGO_ELLIPSIZE_MIDDLE, PANGO_ELLIPSIZE_END } PangoEllipsizeMode; PangoLayoutLine struct _PangoLayoutLine { PangoLayout *layout; gint start_index; /* start of line as byte index into layout->text */ gint length; /* length of line in bytes */ GSList *runs; guint is_paragraph_start : 1; /* TRUE if this is the first line of the paragraph */ guint resolved_dir : 3; /* Resolved PangoDirection of line */ }; PANGO_TYPE_LAYOUT #define PANGO_TYPE_LAYOUT (pango_layout_get_type ()) PANGO_LAYOUT #define PANGO_LAYOUT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_LAYOUT, PangoLayout)) PANGO_LAYOUT_CLASS #define PANGO_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_LAYOUT, PangoLayoutClass)) PANGO_IS_LAYOUT #define PANGO_IS_LAYOUT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_LAYOUT)) PANGO_IS_LAYOUT_CLASS #define PANGO_IS_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_LAYOUT)) PANGO_LAYOUT_GET_CLASS #define PANGO_LAYOUT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_LAYOUT, PangoLayoutClass)) pango_layout_get_type GType void pango_layout_new PangoLayout * PangoContext *context pango_layout_copy PangoLayout * PangoLayout *src pango_layout_get_context PangoContext * PangoLayout *layout pango_layout_set_attributes void PangoLayout *layout, PangoAttrList *attrs pango_layout_get_attributes PangoAttrList * PangoLayout *layout pango_layout_set_text void PangoLayout *layout, const char *text, int length pango_layout_get_text const char * PangoLayout *layout pango_layout_get_character_count gint PangoLayout *layout pango_layout_set_markup void PangoLayout *layout, const char *markup, int length pango_layout_set_markup_with_accel void PangoLayout *layout, const char *markup, int length, gunichar accel_marker, gunichar *accel_char pango_layout_set_font_description void PangoLayout *layout, const PangoFontDescription *desc pango_layout_get_font_description const PangoFontDescription * PangoLayout *layout pango_layout_set_width void PangoLayout *layout, int width pango_layout_get_width int PangoLayout *layout pango_layout_set_height void PangoLayout *layout, int height pango_layout_get_height int PangoLayout *layout pango_layout_set_wrap void PangoLayout *layout, PangoWrapMode wrap pango_layout_get_wrap PangoWrapMode PangoLayout *layout pango_layout_is_wrapped gboolean PangoLayout *layout pango_layout_set_indent void PangoLayout *layout, int indent pango_layout_get_indent int PangoLayout *layout pango_layout_set_spacing void PangoLayout *layout, int spacing pango_layout_get_spacing int PangoLayout *layout pango_layout_set_line_spacing void PangoLayout *layout, float factor pango_layout_get_line_spacing float PangoLayout *layout pango_layout_set_justify void PangoLayout *layout, gboolean justify pango_layout_get_justify gboolean PangoLayout *layout pango_layout_set_auto_dir void PangoLayout *layout, gboolean auto_dir pango_layout_get_auto_dir gboolean PangoLayout *layout pango_layout_set_alignment void PangoLayout *layout, PangoAlignment alignment pango_layout_get_alignment PangoAlignment PangoLayout *layout pango_layout_set_tabs void PangoLayout *layout, PangoTabArray *tabs pango_layout_get_tabs PangoTabArray * PangoLayout *layout pango_layout_set_single_paragraph_mode void PangoLayout *layout, gboolean setting pango_layout_get_single_paragraph_mode gboolean PangoLayout *layout pango_layout_set_ellipsize void PangoLayout *layout, PangoEllipsizeMode ellipsize pango_layout_get_ellipsize PangoEllipsizeMode PangoLayout *layout pango_layout_is_ellipsized gboolean PangoLayout *layout pango_layout_get_unknown_glyphs_count int PangoLayout *layout pango_layout_get_direction PangoDirection PangoLayout *layout, int index pango_layout_context_changed void PangoLayout *layout pango_layout_get_serial guint PangoLayout *layout pango_layout_get_log_attrs void PangoLayout *layout, PangoLogAttr **attrs, gint *n_attrs pango_layout_get_log_attrs_readonly const PangoLogAttr * PangoLayout *layout, gint *n_attrs pango_layout_index_to_pos void PangoLayout *layout, int index_, PangoRectangle *pos pango_layout_index_to_line_x void PangoLayout *layout, int index_, gboolean trailing, int *line, int *x_pos pango_layout_get_cursor_pos void PangoLayout *layout, int index_, PangoRectangle *strong_pos, PangoRectangle *weak_pos pango_layout_move_cursor_visually void PangoLayout *layout, gboolean strong, int old_index, int old_trailing, int direction, int *new_index, int *new_trailing pango_layout_xy_to_index gboolean PangoLayout *layout, int x, int y, int *index_, int *trailing pango_layout_get_extents void PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_get_pixel_extents void PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_get_size void PangoLayout *layout, int *width, int *height pango_layout_get_pixel_size void PangoLayout *layout, int *width, int *height pango_layout_get_baseline int PangoLayout *layout pango_layout_get_line_count int PangoLayout *layout pango_layout_get_line PangoLayoutLine * PangoLayout *layout, int line pango_layout_get_line_readonly PangoLayoutLine * PangoLayout *layout, int line pango_layout_get_lines GSList * PangoLayout *layout pango_layout_get_lines_readonly GSList * PangoLayout *layout PANGO_TYPE_LAYOUT_LINE #define PANGO_TYPE_LAYOUT_LINE (pango_layout_line_get_type ()) pango_layout_line_get_type GType void pango_layout_line_ref PangoLayoutLine * PangoLayoutLine *line pango_layout_line_unref void PangoLayoutLine *line pango_layout_line_x_to_index gboolean PangoLayoutLine *line, int x_pos, int *index_, int *trailing pango_layout_line_index_to_x void PangoLayoutLine *line, int index_, gboolean trailing, int *x_pos pango_layout_line_get_x_ranges void PangoLayoutLine *line, int start_index, int end_index, int **ranges, int *n_ranges pango_layout_line_get_extents void PangoLayoutLine *line, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_line_get_height void PangoLayoutLine *line, int *height pango_layout_line_get_pixel_extents void PangoLayoutLine *layout_line, PangoRectangle *ink_rect, PangoRectangle *logical_rect PANGO_TYPE_LAYOUT_ITER #define PANGO_TYPE_LAYOUT_ITER (pango_layout_iter_get_type ()) pango_layout_iter_get_type GType void pango_layout_get_iter PangoLayoutIter * PangoLayout *layout pango_layout_iter_copy PangoLayoutIter * PangoLayoutIter *iter pango_layout_iter_free void PangoLayoutIter *iter pango_layout_iter_get_index int PangoLayoutIter *iter pango_layout_iter_get_run PangoLayoutRun * PangoLayoutIter *iter pango_layout_iter_get_run_readonly PangoLayoutRun * PangoLayoutIter *iter pango_layout_iter_get_line PangoLayoutLine * PangoLayoutIter *iter pango_layout_iter_get_line_readonly PangoLayoutLine * PangoLayoutIter *iter pango_layout_iter_at_last_line gboolean PangoLayoutIter *iter pango_layout_iter_get_layout PangoLayout * PangoLayoutIter *iter pango_layout_iter_next_char gboolean PangoLayoutIter *iter pango_layout_iter_next_cluster gboolean PangoLayoutIter *iter pango_layout_iter_next_run gboolean PangoLayoutIter *iter pango_layout_iter_next_line gboolean PangoLayoutIter *iter pango_layout_iter_get_char_extents void PangoLayoutIter *iter, PangoRectangle *logical_rect pango_layout_iter_get_cluster_extents void PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_iter_get_run_extents void PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_iter_get_line_extents void PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_iter_get_line_yrange void PangoLayoutIter *iter, int *y0_, int *y1_ pango_layout_iter_get_layout_extents void PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect pango_layout_iter_get_baseline int PangoLayoutIter *iter PangoLayout PangoLayoutClass PangoLayoutIter PangoMatrix struct _PangoMatrix { double xx; double xy; double yx; double yy; double x0; double y0; }; PANGO_TYPE_MATRIX #define PANGO_TYPE_MATRIX (pango_matrix_get_type ()) PANGO_MATRIX_INIT #define PANGO_MATRIX_INIT { 1., 0., 0., 1., 0., 0. } pango_matrix_get_type GType void pango_matrix_copy PangoMatrix * const PangoMatrix *matrix pango_matrix_free void PangoMatrix *matrix pango_matrix_translate void PangoMatrix *matrix, double tx, double ty pango_matrix_scale void PangoMatrix *matrix, double scale_x, double scale_y pango_matrix_rotate void PangoMatrix *matrix, double degrees pango_matrix_concat void PangoMatrix *matrix, const PangoMatrix *new_matrix pango_matrix_transform_point void const PangoMatrix *matrix, double *x, double *y pango_matrix_transform_distance void const PangoMatrix *matrix, double *dx, double *dy pango_matrix_transform_rectangle void const PangoMatrix *matrix, PangoRectangle *rect pango_matrix_transform_pixel_rectangle void const PangoMatrix *matrix, PangoRectangle *rect pango_matrix_get_font_scale_factor double const PangoMatrix *matrix pango_matrix_get_font_scale_factors void const PangoMatrix *matrix, double *xscale, double *yscale PangoIncludedModule struct _PangoIncludedModule { void (*list) (PangoEngineInfo **engines, int *n_engines); void (*init) (GTypeModule *module); void (*exit) (void); PangoEngine *(*create) (const char *id); }; pango_find_map PangoMap * PangoLanguage *language, guint engine_type_id, guint render_type_id pango_map_get_engine PangoEngine * PangoMap *map, PangoScript script pango_map_get_engines void PangoMap *map, PangoScript script, GSList **exact_engines, GSList **fallback_engines pango_module_register void PangoIncludedModule *module PangoMap PangoMapEntry PangoOTTag typedef guint32 PangoOTTag; PANGO_OT_TAG_MAKE #define PANGO_OT_TAG_MAKE(c1,c2,c3,c4) ((PangoOTTag) FT_MAKE_TAG (c1, c2, c3, c4)) PANGO_OT_TAG_MAKE_FROM_STRING #define PANGO_OT_TAG_MAKE_FROM_STRING(s) (PANGO_OT_TAG_MAKE(((const char *) s)[0], \ ((const char *) s)[1], \ ((const char *) s)[2], \ ((const char *) s)[3])) PangoOTTableType typedef enum { PANGO_OT_TABLE_GSUB, PANGO_OT_TABLE_GPOS } PangoOTTableType; PANGO_OT_ALL_GLYPHS #define PANGO_OT_ALL_GLYPHS ((guint) 0xFFFF) PANGO_OT_NO_FEATURE #define PANGO_OT_NO_FEATURE ((guint) 0xFFFF) PANGO_OT_NO_SCRIPT #define PANGO_OT_NO_SCRIPT ((guint) 0xFFFF) PANGO_OT_DEFAULT_LANGUAGE #define PANGO_OT_DEFAULT_LANGUAGE ((guint) 0xFFFF) PANGO_OT_TAG_DEFAULT_SCRIPT #define PANGO_OT_TAG_DEFAULT_SCRIPT PANGO_OT_TAG_MAKE ('D', 'F', 'L', 'T') PANGO_OT_TAG_DEFAULT_LANGUAGE #define PANGO_OT_TAG_DEFAULT_LANGUAGE PANGO_OT_TAG_MAKE ('d', 'f', 'l', 't') PangoOTGlyph struct _PangoOTGlyph { guint32 glyph; guint properties; guint cluster; gushort component; gushort ligID; guint internal; }; PangoOTFeatureMap struct _PangoOTFeatureMap { char feature_name[5]; gulong property_bit; }; PangoOTRulesetDescription struct _PangoOTRulesetDescription { PangoScript script; PangoLanguage *language; const PangoOTFeatureMap *static_gsub_features; guint n_static_gsub_features; const PangoOTFeatureMap *static_gpos_features; guint n_static_gpos_features; const PangoOTFeatureMap *other_features; guint n_other_features; }; PANGO_OT_TYPE_INFO #define PANGO_OT_TYPE_INFO (pango_ot_info_get_type ()) PANGO_OT_INFO #define PANGO_OT_INFO(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_OT_TYPE_INFO, PangoOTInfo)) PANGO_OT_IS_INFO #define PANGO_OT_IS_INFO(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_OT_TYPE_INFO)) PANGO_TYPE_OT_INFO #define PANGO_TYPE_OT_INFO (pango_ot_info_get_type ()) PANGO_IS_OT_INFO #define PANGO_IS_OT_INFO(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OT_INFO)) pango_ot_info_get_type GType void PANGO_OT_TYPE_RULESET #define PANGO_OT_TYPE_RULESET (pango_ot_ruleset_get_type ()) PANGO_OT_RULESET #define PANGO_OT_RULESET(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_OT_TYPE_RULESET, PangoOTRuleset)) PANGO_OT_IS_RULESET #define PANGO_OT_IS_RULESET(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_OT_TYPE_RULESET)) PANGO_TYPE_OT_RULESET #define PANGO_TYPE_OT_RULESET (pango_ot_ruleset_get_type ()) PANGO_IS_OT_RULESET #define PANGO_IS_OT_RULESET(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OT_RULESET)) pango_ot_ruleset_get_type GType void pango_ot_info_get PangoOTInfo * FT_Face face pango_ot_info_find_script gboolean PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag script_tag, guint *script_index pango_ot_info_find_language gboolean PangoOTInfo *info, PangoOTTableType table_type, guint script_index, PangoOTTag language_tag, guint *language_index, guint *required_feature_index pango_ot_info_find_feature gboolean PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag feature_tag, guint script_index, guint language_index, guint *feature_index pango_ot_info_list_scripts PangoOTTag * PangoOTInfo *info, PangoOTTableType table_type pango_ot_info_list_languages PangoOTTag * PangoOTInfo *info, PangoOTTableType table_type, guint script_index, PangoOTTag language_tag pango_ot_info_list_features PangoOTTag * PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag tag, guint script_index, guint language_index PANGO_OT_TYPE_BUFFER #define PANGO_OT_TYPE_BUFFER (pango_ot_buffer_get_type()) PANGO_TYPE_OT_BUFFER #define PANGO_TYPE_OT_BUFFER (pango_ot_buffer_get_type()) pango_ot_buffer_get_type GType void pango_ot_buffer_new PangoOTBuffer * PangoFcFont *font pango_ot_buffer_destroy void PangoOTBuffer *buffer pango_ot_buffer_clear void PangoOTBuffer *buffer pango_ot_buffer_set_rtl void PangoOTBuffer *buffer, gboolean rtl pango_ot_buffer_add_glyph void PangoOTBuffer *buffer, guint glyph, guint properties, guint cluster pango_ot_buffer_get_glyphs void const PangoOTBuffer *buffer, PangoOTGlyph **glyphs, int *n_glyphs pango_ot_buffer_output void const PangoOTBuffer *buffer, PangoGlyphString *glyphs pango_ot_buffer_set_zero_width_marks void PangoOTBuffer *buffer, gboolean zero_width_marks pango_ot_ruleset_get_for_description const PangoOTRuleset * PangoOTInfo *info, const PangoOTRulesetDescription *desc pango_ot_ruleset_new PangoOTRuleset * PangoOTInfo *info pango_ot_ruleset_new_for PangoOTRuleset * PangoOTInfo *info, PangoScript script, PangoLanguage *language pango_ot_ruleset_new_from_description PangoOTRuleset * PangoOTInfo *info, const PangoOTRulesetDescription *desc pango_ot_ruleset_add_feature void PangoOTRuleset *ruleset, PangoOTTableType table_type, guint feature_index, gulong property_bit pango_ot_ruleset_maybe_add_feature gboolean PangoOTRuleset *ruleset, PangoOTTableType table_type, PangoOTTag feature_tag, gulong property_bit pango_ot_ruleset_maybe_add_features guint PangoOTRuleset *ruleset, PangoOTTableType table_type, const PangoOTFeatureMap *features, guint n_features pango_ot_ruleset_get_feature_count guint const PangoOTRuleset *ruleset, guint *n_gsub_features, guint *n_gpos_features pango_ot_ruleset_substitute void const PangoOTRuleset *ruleset, PangoOTBuffer *buffer pango_ot_ruleset_position void const PangoOTRuleset *ruleset, PangoOTBuffer *buffer pango_ot_tag_to_script PangoScript PangoOTTag script_tag pango_ot_tag_from_script PangoOTTag PangoScript script pango_ot_tag_to_language PangoLanguage * PangoOTTag language_tag pango_ot_tag_from_language PangoOTTag PangoLanguage *language PANGO_OT_TYPE_RULESET_DESCRIPTION #define PANGO_OT_TYPE_RULESET_DESCRIPTION (pango_ot_ruleset_description_get_type()) PANGO_TYPE_OT_RULESET_DESCRIPTION #define PANGO_TYPE_OT_RULESET_DESCRIPTION (pango_ot_ruleset_description_get_type()) pango_ot_ruleset_description_get_type GType void pango_ot_ruleset_description_hash guint const PangoOTRulesetDescription *desc pango_ot_ruleset_description_equal gboolean const PangoOTRulesetDescription *desc1, const PangoOTRulesetDescription *desc2 pango_ot_ruleset_description_copy PangoOTRulesetDescription * const PangoOTRulesetDescription *desc pango_ot_ruleset_description_free void PangoOTRulesetDescription *desc PangoOTBuffer PangoOTInfo PangoOTRuleset PANGO_TYPE_RENDERER #define PANGO_TYPE_RENDERER (pango_renderer_get_type()) PANGO_RENDERER #define PANGO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_RENDERER, PangoRenderer)) PANGO_IS_RENDERER #define PANGO_IS_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_RENDERER)) PANGO_RENDERER_CLASS #define PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_RENDERER, PangoRendererClass)) PANGO_IS_RENDERER_CLASS #define PANGO_IS_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_RENDERER)) PANGO_RENDERER_GET_CLASS #define PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_RENDERER, PangoRendererClass)) PangoRenderPart typedef enum { PANGO_RENDER_PART_FOREGROUND, PANGO_RENDER_PART_BACKGROUND, PANGO_RENDER_PART_UNDERLINE, PANGO_RENDER_PART_STRIKETHROUGH, PANGO_RENDER_PART_OVERLINE } PangoRenderPart; PangoRenderer struct _PangoRenderer { /*< private >*/ GObject parent_instance; PangoUnderline underline; gboolean strikethrough; int active_count; /*< public >*/ PangoMatrix *matrix; /* May be NULL */ /*< private >*/ PangoRendererPrivate *priv; }; PangoRendererClass struct _PangoRendererClass { /*< private >*/ GObjectClass parent_class; /* vtable - not signals */ /*< public >*/ void (*draw_glyphs) (PangoRenderer *renderer, PangoFont *font, PangoGlyphString *glyphs, int x, int y); void (*draw_rectangle) (PangoRenderer *renderer, PangoRenderPart part, int x, int y, int width, int height); void (*draw_error_underline) (PangoRenderer *renderer, int x, int y, int width, int height); void (*draw_shape) (PangoRenderer *renderer, PangoAttrShape *attr, int x, int y); void (*draw_trapezoid) (PangoRenderer *renderer, PangoRenderPart part, double y1_, double x11, double x21, double y2, double x12, double x22); void (*draw_glyph) (PangoRenderer *renderer, PangoFont *font, PangoGlyph glyph, double x, double y); void (*part_changed) (PangoRenderer *renderer, PangoRenderPart part); void (*begin) (PangoRenderer *renderer); void (*end) (PangoRenderer *renderer); void (*prepare_run) (PangoRenderer *renderer, PangoLayoutRun *run); void (*draw_glyph_item) (PangoRenderer *renderer, const char *text, PangoGlyphItem *glyph_item, int x, int y); /*< private >*/ /* Padding for future expansion */ void (*_pango_reserved2) (void); void (*_pango_reserved3) (void); void (*_pango_reserved4) (void); }; pango_renderer_get_type GType void pango_renderer_draw_layout void PangoRenderer *renderer, PangoLayout *layout, int x, int y pango_renderer_draw_layout_line void PangoRenderer *renderer, PangoLayoutLine *line, int x, int y pango_renderer_draw_glyphs void PangoRenderer *renderer, PangoFont *font, PangoGlyphString *glyphs, int x, int y pango_renderer_draw_glyph_item void PangoRenderer *renderer, const char *text, PangoGlyphItem *glyph_item, int x, int y pango_renderer_draw_rectangle void PangoRenderer *renderer, PangoRenderPart part, int x, int y, int width, int height pango_renderer_draw_error_underline void PangoRenderer *renderer, int x, int y, int width, int height pango_renderer_draw_trapezoid void PangoRenderer *renderer, PangoRenderPart part, double y1_, double x11, double x21, double y2, double x12, double x22 pango_renderer_draw_glyph void PangoRenderer *renderer, PangoFont *font, PangoGlyph glyph, double x, double y pango_renderer_activate void PangoRenderer *renderer pango_renderer_deactivate void PangoRenderer *renderer pango_renderer_part_changed void PangoRenderer *renderer, PangoRenderPart part pango_renderer_set_color void PangoRenderer *renderer, PangoRenderPart part, const PangoColor *color pango_renderer_get_color PangoColor * PangoRenderer *renderer, PangoRenderPart part pango_renderer_set_alpha void PangoRenderer *renderer, PangoRenderPart part, guint16 alpha pango_renderer_get_alpha guint16 PangoRenderer *renderer, PangoRenderPart part pango_renderer_set_matrix void PangoRenderer *renderer, const PangoMatrix *matrix pango_renderer_get_matrix const PangoMatrix * PangoRenderer *renderer pango_renderer_get_layout PangoLayout * PangoRenderer *renderer pango_renderer_get_layout_line PangoLayoutLine * PangoRenderer *renderer PangoRendererPrivate PangoScript typedef enum { /* ISO 15924 code */ PANGO_SCRIPT_INVALID_CODE = -1, PANGO_SCRIPT_COMMON = 0, /* Zyyy */ PANGO_SCRIPT_INHERITED, /* Qaai */ PANGO_SCRIPT_ARABIC, /* Arab */ PANGO_SCRIPT_ARMENIAN, /* Armn */ PANGO_SCRIPT_BENGALI, /* Beng */ PANGO_SCRIPT_BOPOMOFO, /* Bopo */ PANGO_SCRIPT_CHEROKEE, /* Cher */ PANGO_SCRIPT_COPTIC, /* Qaac */ PANGO_SCRIPT_CYRILLIC, /* Cyrl (Cyrs) */ PANGO_SCRIPT_DESERET, /* Dsrt */ PANGO_SCRIPT_DEVANAGARI, /* Deva */ PANGO_SCRIPT_ETHIOPIC, /* Ethi */ PANGO_SCRIPT_GEORGIAN, /* Geor (Geon, Geoa) */ PANGO_SCRIPT_GOTHIC, /* Goth */ PANGO_SCRIPT_GREEK, /* Grek */ PANGO_SCRIPT_GUJARATI, /* Gujr */ PANGO_SCRIPT_GURMUKHI, /* Guru */ PANGO_SCRIPT_HAN, /* Hani */ PANGO_SCRIPT_HANGUL, /* Hang */ PANGO_SCRIPT_HEBREW, /* Hebr */ PANGO_SCRIPT_HIRAGANA, /* Hira */ PANGO_SCRIPT_KANNADA, /* Knda */ PANGO_SCRIPT_KATAKANA, /* Kana */ PANGO_SCRIPT_KHMER, /* Khmr */ PANGO_SCRIPT_LAO, /* Laoo */ PANGO_SCRIPT_LATIN, /* Latn (Latf, Latg) */ PANGO_SCRIPT_MALAYALAM, /* Mlym */ PANGO_SCRIPT_MONGOLIAN, /* Mong */ PANGO_SCRIPT_MYANMAR, /* Mymr */ PANGO_SCRIPT_OGHAM, /* Ogam */ PANGO_SCRIPT_OLD_ITALIC, /* Ital */ PANGO_SCRIPT_ORIYA, /* Orya */ PANGO_SCRIPT_RUNIC, /* Runr */ PANGO_SCRIPT_SINHALA, /* Sinh */ PANGO_SCRIPT_SYRIAC, /* Syrc (Syrj, Syrn, Syre) */ PANGO_SCRIPT_TAMIL, /* Taml */ PANGO_SCRIPT_TELUGU, /* Telu */ PANGO_SCRIPT_THAANA, /* Thaa */ PANGO_SCRIPT_THAI, /* Thai */ PANGO_SCRIPT_TIBETAN, /* Tibt */ PANGO_SCRIPT_CANADIAN_ABORIGINAL, /* Cans */ PANGO_SCRIPT_YI, /* Yiii */ PANGO_SCRIPT_TAGALOG, /* Tglg */ PANGO_SCRIPT_HANUNOO, /* Hano */ PANGO_SCRIPT_BUHID, /* Buhd */ PANGO_SCRIPT_TAGBANWA, /* Tagb */ /* Unicode-4.0 additions */ PANGO_SCRIPT_BRAILLE, /* Brai */ PANGO_SCRIPT_CYPRIOT, /* Cprt */ PANGO_SCRIPT_LIMBU, /* Limb */ PANGO_SCRIPT_OSMANYA, /* Osma */ PANGO_SCRIPT_SHAVIAN, /* Shaw */ PANGO_SCRIPT_LINEAR_B, /* Linb */ PANGO_SCRIPT_TAI_LE, /* Tale */ PANGO_SCRIPT_UGARITIC, /* Ugar */ /* Unicode-4.1 additions */ PANGO_SCRIPT_NEW_TAI_LUE, /* Talu */ PANGO_SCRIPT_BUGINESE, /* Bugi */ PANGO_SCRIPT_GLAGOLITIC, /* Glag */ PANGO_SCRIPT_TIFINAGH, /* Tfng */ PANGO_SCRIPT_SYLOTI_NAGRI, /* Sylo */ PANGO_SCRIPT_OLD_PERSIAN, /* Xpeo */ PANGO_SCRIPT_KHAROSHTHI, /* Khar */ /* Unicode-5.0 additions */ PANGO_SCRIPT_UNKNOWN, /* Zzzz */ PANGO_SCRIPT_BALINESE, /* Bali */ PANGO_SCRIPT_CUNEIFORM, /* Xsux */ PANGO_SCRIPT_PHOENICIAN, /* Phnx */ PANGO_SCRIPT_PHAGS_PA, /* Phag */ PANGO_SCRIPT_NKO, /* Nkoo */ /* Unicode-5.1 additions */ PANGO_SCRIPT_KAYAH_LI, /* Kali */ PANGO_SCRIPT_LEPCHA, /* Lepc */ PANGO_SCRIPT_REJANG, /* Rjng */ PANGO_SCRIPT_SUNDANESE, /* Sund */ PANGO_SCRIPT_SAURASHTRA, /* Saur */ PANGO_SCRIPT_CHAM, /* Cham */ PANGO_SCRIPT_OL_CHIKI, /* Olck */ PANGO_SCRIPT_VAI, /* Vaii */ PANGO_SCRIPT_CARIAN, /* Cari */ PANGO_SCRIPT_LYCIAN, /* Lyci */ PANGO_SCRIPT_LYDIAN, /* Lydi */ /* Unicode-6.0 additions */ PANGO_SCRIPT_BATAK, /* Batk */ PANGO_SCRIPT_BRAHMI, /* Brah */ PANGO_SCRIPT_MANDAIC, /* Mand */ /* Unicode-6.1 additions */ PANGO_SCRIPT_CHAKMA, /* Cakm */ PANGO_SCRIPT_MEROITIC_CURSIVE, /* Merc */ PANGO_SCRIPT_MEROITIC_HIEROGLYPHS,/* Mero */ PANGO_SCRIPT_MIAO, /* Plrd */ PANGO_SCRIPT_SHARADA, /* Shrd */ PANGO_SCRIPT_SORA_SOMPENG, /* Sora */ PANGO_SCRIPT_TAKRI, /* Takr */ /* Unicode 7.0 additions */ PANGO_SCRIPT_BASSA_VAH, /* Bass */ PANGO_SCRIPT_CAUCASIAN_ALBANIAN, /* Aghb */ PANGO_SCRIPT_DUPLOYAN, /* Dupl */ PANGO_SCRIPT_ELBASAN, /* Elba */ PANGO_SCRIPT_GRANTHA, /* Gran */ PANGO_SCRIPT_KHOJKI, /* Khoj */ PANGO_SCRIPT_KHUDAWADI, /* Sind */ PANGO_SCRIPT_LINEAR_A, /* Lina */ PANGO_SCRIPT_MAHAJANI, /* Mahj */ PANGO_SCRIPT_MANICHAEAN, /* Manu */ PANGO_SCRIPT_MENDE_KIKAKUI, /* Mend */ PANGO_SCRIPT_MODI, /* Modi */ PANGO_SCRIPT_MRO, /* Mroo */ PANGO_SCRIPT_NABATAEAN, /* Nbat */ PANGO_SCRIPT_OLD_NORTH_ARABIAN, /* Narb */ PANGO_SCRIPT_OLD_PERMIC, /* Perm */ PANGO_SCRIPT_PAHAWH_HMONG, /* Hmng */ PANGO_SCRIPT_PALMYRENE, /* Palm */ PANGO_SCRIPT_PAU_CIN_HAU, /* Pauc */ PANGO_SCRIPT_PSALTER_PAHLAVI, /* Phlp */ PANGO_SCRIPT_SIDDHAM, /* Sidd */ PANGO_SCRIPT_TIRHUTA, /* Tirh */ PANGO_SCRIPT_WARANG_CITI, /* Wara */ /* Unicode 8.0 additions */ PANGO_SCRIPT_AHOM, /* Ahom */ PANGO_SCRIPT_ANATOLIAN_HIEROGLYPHS, /* Hluw */ PANGO_SCRIPT_HATRAN, /* Hatr */ PANGO_SCRIPT_MULTANI, /* Mult */ PANGO_SCRIPT_OLD_HUNGARIAN, /* Hung */ PANGO_SCRIPT_SIGNWRITING /* Sgnw */ } PangoScript; pango_script_for_unichar PangoScript gunichar ch pango_script_iter_get_type GType void pango_script_iter_new PangoScriptIter * const char *text, int length pango_script_iter_get_range void PangoScriptIter *iter, const char **start, const char **end, PangoScript *script pango_script_iter_next gboolean PangoScriptIter *iter pango_script_iter_free void PangoScriptIter *iter pango_script_get_sample_language PangoLanguage * PangoScript script PangoScriptIter PangoTabAlign typedef enum { PANGO_TAB_LEFT /* These are not supported now, but may be in the * future. * * PANGO_TAB_RIGHT, * PANGO_TAB_CENTER, * PANGO_TAB_NUMERIC */ } PangoTabAlign; PANGO_TYPE_TAB_ARRAY #define PANGO_TYPE_TAB_ARRAY (pango_tab_array_get_type ()) pango_tab_array_new PangoTabArray * gint initial_size, gboolean positions_in_pixels pango_tab_array_new_with_positions PangoTabArray * gint size, gboolean positions_in_pixels, PangoTabAlign first_alignment, gint first_position, ... pango_tab_array_get_type GType void pango_tab_array_copy PangoTabArray * PangoTabArray *src pango_tab_array_free void PangoTabArray *tab_array pango_tab_array_get_size gint PangoTabArray *tab_array pango_tab_array_resize void PangoTabArray *tab_array, gint new_size pango_tab_array_set_tab void PangoTabArray *tab_array, gint tab_index, PangoTabAlign alignment, gint location pango_tab_array_get_tab void PangoTabArray *tab_array, gint tab_index, PangoTabAlign *alignment, gint *location pango_tab_array_get_tabs void PangoTabArray *tab_array, PangoTabAlign **alignments, gint **locations pango_tab_array_get_positions_in_pixels gboolean PangoTabArray *tab_array PangoTabArray PANGO_TRACE_CURRENT_TIME #define PANGO_TRACE_CURRENT_TIME SYSPROF_CAPTURE_CURRENT_TIME pango_trace_mark void gint64 begin_time, const gchar *name, const gchar *message_format, ... g_trace_mark #define g_trace_mark(b, n, m, ...) PangoGlyph typedef guint32 PangoGlyph; PANGO_SCALE #define PANGO_SCALE 1024 PANGO_PIXELS #define PANGO_PIXELS(d) (((int)(d) + 512) >> 10) PANGO_PIXELS_FLOOR #define PANGO_PIXELS_FLOOR(d) (((int)(d)) >> 10) PANGO_PIXELS_CEIL #define PANGO_PIXELS_CEIL(d) (((int)(d) + 1023) >> 10) PANGO_UNITS_ROUND #define PANGO_UNITS_ROUND(d) \ (((d) + (PANGO_SCALE >> 1)) & ~(PANGO_SCALE - 1)) pango_units_from_double int double d pango_units_to_double double int i PangoRectangle struct _PangoRectangle { int x; int y; int width; int height; }; PANGO_ASCENT #define PANGO_ASCENT(rect) (-(rect).y) PANGO_DESCENT #define PANGO_DESCENT(rect) ((rect).y + (rect).height) PANGO_LBEARING #define PANGO_LBEARING(rect) ((rect).x) PANGO_RBEARING #define PANGO_RBEARING(rect) ((rect).x + (rect).width) pango_extents_to_pixels void PangoRectangle *inclusive, PangoRectangle *nearest PangoEngineLang PangoEngineShape PangoFont PangoFontMap PangoLogAttr pango_parse_flags gboolean GType type, const char *str, int *value, char **possible_values pango_split_file_list char ** const char *str pango_trim_string char * const char *str pango_read_line gint FILE *stream, GString *str pango_skip_space gboolean const char **pos pango_scan_word gboolean const char **pos, GString *out pango_scan_string gboolean const char **pos, GString *out pango_scan_int gboolean const char **pos, int *out pango_parse_enum gboolean GType type, const char *str, int *value, gboolean warn, char **possible_values pango_parse_style gboolean const char *str, PangoStyle *style, gboolean warn pango_parse_variant gboolean const char *str, PangoVariant *variant, gboolean warn pango_parse_weight gboolean const char *str, PangoWeight *weight, gboolean warn pango_parse_stretch gboolean const char *str, PangoStretch *stretch, gboolean warn pango_quantize_line_geometry void int *thickness, int *position pango_log2vis_get_embedding_levels guint8 * const gchar *text, int length, PangoDirection *pbase_dir pango_is_zero_width gboolean gunichar ch PANGO_VERSION_ENCODE #define PANGO_VERSION_ENCODE(major, minor, micro) ( \ ((major) * 10000) \ + ((minor) * 100) \ + ((micro) * 1)) PANGO_VERSION #define PANGO_VERSION PANGO_VERSION_ENCODE( \ PANGO_VERSION_MAJOR, \ PANGO_VERSION_MINOR, \ PANGO_VERSION_MICRO) PANGO_VERSION_CHECK #define PANGO_VERSION_CHECK(major,minor,micro) \ (PANGO_VERSION >= PANGO_VERSION_ENCODE(major,minor,micro)) pango_version int void pango_version_string const char * void pango_version_check const char * int required_major, int required_minor, int required_micro PANGO_AVAILABLE_IN_ALL #define PANGO_AVAILABLE_IN_ALL _PANGO_EXTERN PANGO_VERSION_1_2 #define PANGO_VERSION_1_2 (G_ENCODE_VERSION (1, 2)) PANGO_VERSION_1_4 #define PANGO_VERSION_1_4 (G_ENCODE_VERSION (1, 4)) PANGO_VERSION_1_6 #define PANGO_VERSION_1_6 (G_ENCODE_VERSION (1, 6)) PANGO_VERSION_1_8 #define PANGO_VERSION_1_8 (G_ENCODE_VERSION (1, 8)) PANGO_VERSION_1_10 #define PANGO_VERSION_1_10 (G_ENCODE_VERSION (1, 10)) PANGO_VERSION_1_12 #define PANGO_VERSION_1_12 (G_ENCODE_VERSION (1, 12)) PANGO_VERSION_1_14 #define PANGO_VERSION_1_14 (G_ENCODE_VERSION (1, 14)) PANGO_VERSION_1_16 #define PANGO_VERSION_1_16 (G_ENCODE_VERSION (1, 16)) PANGO_VERSION_1_18 #define PANGO_VERSION_1_18 (G_ENCODE_VERSION (1, 18)) PANGO_VERSION_1_20 #define PANGO_VERSION_1_20 (G_ENCODE_VERSION (1, 20)) PANGO_VERSION_1_22 #define PANGO_VERSION_1_22 (G_ENCODE_VERSION (1, 22)) PANGO_VERSION_1_24 #define PANGO_VERSION_1_24 (G_ENCODE_VERSION (1, 24)) PANGO_VERSION_1_26 #define PANGO_VERSION_1_26 (G_ENCODE_VERSION (1, 26)) PANGO_VERSION_1_28 #define PANGO_VERSION_1_28 (G_ENCODE_VERSION (1, 28)) PANGO_VERSION_1_30 #define PANGO_VERSION_1_30 (G_ENCODE_VERSION (1, 30)) PANGO_VERSION_1_32 #define PANGO_VERSION_1_32 (G_ENCODE_VERSION (1, 32)) PANGO_VERSION_1_34 #define PANGO_VERSION_1_34 (G_ENCODE_VERSION (1, 34)) PANGO_VERSION_1_36 #define PANGO_VERSION_1_36 (G_ENCODE_VERSION (1, 36)) PANGO_VERSION_1_38 #define PANGO_VERSION_1_38 (G_ENCODE_VERSION (1, 38)) PANGO_VERSION_1_40 #define PANGO_VERSION_1_40 (G_ENCODE_VERSION (1, 40)) PANGO_VERSION_1_42 #define PANGO_VERSION_1_42 (G_ENCODE_VERSION (1, 42)) PANGO_VERSION_1_44 #define PANGO_VERSION_1_44 (G_ENCODE_VERSION (1, 44)) PANGO_VERSION_1_46 #define PANGO_VERSION_1_46 (G_ENCODE_VERSION (1, 46)) PANGO_VERSION_1_48 #define PANGO_VERSION_1_48 (G_ENCODE_VERSION (1, 48)) PANGO_VERSION_CUR_STABLE #define PANGO_VERSION_CUR_STABLE (G_ENCODE_VERSION (PANGO_VERSION_MAJOR, PANGO_VERSION_MINOR + 1)) PANGO_VERSION_PREV_STABLE #define PANGO_VERSION_PREV_STABLE (G_ENCODE_VERSION (PANGO_VERSION_MAJOR, PANGO_VERSION_MINOR - 1)) PANGO_VERSION_MIN_REQUIRED # define PANGO_VERSION_MIN_REQUIRED (PANGO_VERSION_CUR_STABLE) PANGO_VERSION_MAX_ALLOWED # define PANGO_VERSION_MAX_ALLOWED (PANGO_VERSION_CUR_STABLE) PANGO_DEPRECATED # define PANGO_DEPRECATED _PANGO_EXTERN PANGO_DEPRECATED_FOR # define PANGO_DEPRECATED_FOR(f) _PANGO_EXTERN PANGO_UNAVAILABLE # define PANGO_UNAVAILABLE(maj,min) _PANGO_EXTERN PANGO_DEPRECATED_IN_1_2 # define PANGO_DEPRECATED_IN_1_2 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_2_FOR # define PANGO_DEPRECATED_IN_1_2_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_2 # define PANGO_AVAILABLE_IN_1_2 PANGO_UNAVAILABLE(1, 2) PANGO_DEPRECATED_IN_1_4 # define PANGO_DEPRECATED_IN_1_4 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_4_FOR # define PANGO_DEPRECATED_IN_1_4_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_4 # define PANGO_AVAILABLE_IN_1_4 PANGO_UNAVAILABLE(1, 4) PANGO_DEPRECATED_IN_1_6 # define PANGO_DEPRECATED_IN_1_6 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_6_FOR # define PANGO_DEPRECATED_IN_1_6_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_6 # define PANGO_AVAILABLE_IN_1_6 PANGO_UNAVAILABLE(1, 6) PANGO_DEPRECATED_IN_1_8 # define PANGO_DEPRECATED_IN_1_8 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_8_FOR # define PANGO_DEPRECATED_IN_1_8_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_8 # define PANGO_AVAILABLE_IN_1_8 PANGO_UNAVAILABLE(1, 8) PANGO_DEPRECATED_IN_1_10 # define PANGO_DEPRECATED_IN_1_10 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_10_FOR # define PANGO_DEPRECATED_IN_1_10_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_10 # define PANGO_AVAILABLE_IN_1_10 PANGO_UNAVAILABLE(1, 10) PANGO_AVAILABLE_IN_1_12 # define PANGO_AVAILABLE_IN_1_12 PANGO_UNAVAILABLE(1, 12) PANGO_DEPRECATED_IN_1_12 # define PANGO_DEPRECATED_IN_1_12 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_12_FOR # define PANGO_DEPRECATED_IN_1_12_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_14 # define PANGO_AVAILABLE_IN_1_14 PANGO_UNAVAILABLE(1, 14) PANGO_DEPRECATED_IN_1_14 # define PANGO_DEPRECATED_IN_1_14 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_14_FOR # define PANGO_DEPRECATED_IN_1_14_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_16 # define PANGO_AVAILABLE_IN_1_16 PANGO_UNAVAILABLE(1, 16) PANGO_DEPRECATED_IN_1_16 # define PANGO_DEPRECATED_IN_1_16 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_16_FOR # define PANGO_DEPRECATED_IN_1_16_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_DEPRECATED_IN_1_18 # define PANGO_DEPRECATED_IN_1_18 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_18_FOR # define PANGO_DEPRECATED_IN_1_18_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_18 # define PANGO_AVAILABLE_IN_1_18 PANGO_UNAVAILABLE(1, 18) PANGO_DEPRECATED_IN_1_20 # define PANGO_DEPRECATED_IN_1_20 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_20_FOR # define PANGO_DEPRECATED_IN_1_20_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_20 # define PANGO_AVAILABLE_IN_1_20 PANGO_UNAVAILABLE(1, 20) PANGO_DEPRECATED_IN_1_22 # define PANGO_DEPRECATED_IN_1_22 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_22_FOR # define PANGO_DEPRECATED_IN_1_22_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_22 # define PANGO_AVAILABLE_IN_1_22 PANGO_UNAVAILABLE(1, 22) PANGO_DEPRECATED_IN_1_24 # define PANGO_DEPRECATED_IN_1_24 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_24_FOR # define PANGO_DEPRECATED_IN_1_24_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_24 # define PANGO_AVAILABLE_IN_1_24 PANGO_UNAVAILABLE(1, 24) PANGO_DEPRECATED_IN_1_26 # define PANGO_DEPRECATED_IN_1_26 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_26_FOR # define PANGO_DEPRECATED_IN_1_26_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_26 # define PANGO_AVAILABLE_IN_1_26 PANGO_UNAVAILABLE(1, 26) PANGO_DEPRECATED_IN_1_28 # define PANGO_DEPRECATED_IN_1_28 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_28_FOR # define PANGO_DEPRECATED_IN_1_28_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_28 # define PANGO_AVAILABLE_IN_1_28 PANGO_UNAVAILABLE(1, 28) PANGO_DEPRECATED_IN_1_30 # define PANGO_DEPRECATED_IN_1_30 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_30_FOR # define PANGO_DEPRECATED_IN_1_30_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_30 # define PANGO_AVAILABLE_IN_1_30 PANGO_UNAVAILABLE(1, 30) PANGO_DEPRECATED_IN_1_32 # define PANGO_DEPRECATED_IN_1_32 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_32_FOR # define PANGO_DEPRECATED_IN_1_32_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_32 # define PANGO_AVAILABLE_IN_1_32 PANGO_UNAVAILABLE(1, 32) PANGO_DEPRECATED_IN_1_34 # define PANGO_DEPRECATED_IN_1_34 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_34_FOR # define PANGO_DEPRECATED_IN_1_34_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_34 # define PANGO_AVAILABLE_IN_1_34 PANGO_UNAVAILABLE(1, 34) PANGO_DEPRECATED_IN_1_36 # define PANGO_DEPRECATED_IN_1_36 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_36_FOR # define PANGO_DEPRECATED_IN_1_36_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_36 # define PANGO_AVAILABLE_IN_1_36 PANGO_UNAVAILABLE(1, 36) PANGO_DEPRECATED_IN_1_38 # define PANGO_DEPRECATED_IN_1_38 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_38_FOR # define PANGO_DEPRECATED_IN_1_38_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_38 # define PANGO_AVAILABLE_IN_1_38 PANGO_UNAVAILABLE(1, 38) PANGO_DEPRECATED_IN_1_40 # define PANGO_DEPRECATED_IN_1_40 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_40_FOR # define PANGO_DEPRECATED_IN_1_40_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_40 # define PANGO_AVAILABLE_IN_1_40 PANGO_UNAVAILABLE(1, 40) PANGO_DEPRECATED_IN_1_42 # define PANGO_DEPRECATED_IN_1_42 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_42_FOR # define PANGO_DEPRECATED_IN_1_42_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_42 # define PANGO_AVAILABLE_IN_1_42 PANGO_UNAVAILABLE(1, 42) PANGO_DEPRECATED_IN_1_44 # define PANGO_DEPRECATED_IN_1_44 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_44_FOR # define PANGO_DEPRECATED_IN_1_44_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_44 # define PANGO_AVAILABLE_IN_1_44 PANGO_UNAVAILABLE(1, 44) PANGO_DEPRECATED_IN_1_46 # define PANGO_DEPRECATED_IN_1_46 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_46_FOR # define PANGO_DEPRECATED_IN_1_46_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_46 # define PANGO_AVAILABLE_IN_1_46 PANGO_UNAVAILABLE(1, 46) PANGO_DEPRECATED_IN_1_48 # define PANGO_DEPRECATED_IN_1_48 PANGO_DEPRECATED PANGO_DEPRECATED_IN_1_48_FOR # define PANGO_DEPRECATED_IN_1_48_FOR(f) PANGO_DEPRECATED_FOR(f) PANGO_AVAILABLE_IN_1_48 # define PANGO_AVAILABLE_IN_1_48 PANGO_UNAVAILABLE(1, 48) PANGO_TYPE_CAIRO_CORE_TEXT_FONT_MAP #define PANGO_TYPE_CAIRO_CORE_TEXT_FONT_MAP (pango_cairo_core_text_font_map_get_type ()) PANGO_CAIRO_CORE_TEXT_FONT_MAP #define PANGO_CAIRO_CORE_TEXT_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CAIRO_CORE_TEXT_FONT_MAP, PangoCairoCoreTextFontMap)) PANGO_IS_CAIRO_CORE_TEXT_FONT_MAP #define PANGO_IS_CAIRO_CORE_TEXT_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CAIRO_CORE_TEXT_FONT_MAP)) PangoCairoCoreTextFontMap struct _PangoCairoCoreTextFontMap { PangoCoreTextFontMap parent_instance; guint serial; gdouble dpi; }; pango_cairo_core_text_font_map_get_type GType void PANGO_TYPE_CAIRO_CORE_TEXT_FONT #define PANGO_TYPE_CAIRO_CORE_TEXT_FONT (pango_cairo_core_text_font_get_type ()) PANGO_CAIRO_CORE_TEXT_FONT #define PANGO_CAIRO_CORE_TEXT_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CAIRO_CORE_TEXT_FONT, PangoCairoCoreTextFont)) PANGO_CAIRO_CORE_TEXT_FONT_CLASS #define PANGO_CAIRO_CORE_TEXT_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_CAIRO_CORE_TEXT_FONT, PangoCairoCoreTextFontClass)) PANGO_IS_CAIRO_CORE_TEXT_FONT_CLASS #define PANGO_IS_CAIRO_CORE_TEXT_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_CAIRO_CORE_TEXT_FONT)) PANGO_CAIRO_CORE_TEXT_FONT_GET_CLASS #define PANGO_CAIRO_CORE_TEXT_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_CAIRO_CORE_TEXT_FONT, PangoCairoCoreTextFontClass)) pango_cairo_core_text_font_get_type GType void PangoCairoCoreTextFont PangoCairoCoreTextFontClass PANGO_CAIRO_TYPE_FONT #define PANGO_CAIRO_TYPE_FONT (pango_cairo_font_get_type()) PANGO_CAIRO_FONT #define PANGO_CAIRO_FONT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PANGO_CAIRO_TYPE_FONT, PangoCairoFont)) PANGO_CAIRO_IS_FONT #define PANGO_CAIRO_IS_FONT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PANGO_CAIRO_TYPE_FONT)) PANGO_TYPE_CAIRO_FONT #define PANGO_TYPE_CAIRO_FONT (pango_cairo_font_get_type ()) PANGO_IS_CAIRO_FONT #define PANGO_IS_CAIRO_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CAIRO_FONT)) PANGO_CAIRO_TYPE_FONT_MAP #define PANGO_CAIRO_TYPE_FONT_MAP (pango_cairo_font_map_get_type()) PANGO_CAIRO_FONT_MAP #define PANGO_CAIRO_FONT_MAP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PANGO_CAIRO_TYPE_FONT_MAP, PangoCairoFontMap)) PANGO_CAIRO_IS_FONT_MAP #define PANGO_CAIRO_IS_FONT_MAP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PANGO_CAIRO_TYPE_FONT_MAP)) PANGO_TYPE_CAIRO_FONT_MAP #define PANGO_TYPE_CAIRO_FONT_MAP (pango_cairo_font_map_get_type ()) PANGO_IS_CAIRO_FONT_MAP #define PANGO_IS_CAIRO_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CAIRO_FONT_MAP)) PangoCairoShapeRendererFunc void cairo_t *cr, PangoAttrShape *attr, gboolean do_path, gpointer data pango_cairo_font_map_get_type GType void pango_cairo_font_map_new PangoFontMap * void pango_cairo_font_map_new_for_font_type PangoFontMap * cairo_font_type_t fonttype pango_cairo_font_map_get_default PangoFontMap * void pango_cairo_font_map_set_default void PangoCairoFontMap *fontmap pango_cairo_font_map_get_font_type cairo_font_type_t PangoCairoFontMap *fontmap pango_cairo_font_map_set_resolution void PangoCairoFontMap *fontmap, double dpi pango_cairo_font_map_get_resolution double PangoCairoFontMap *fontmap pango_cairo_font_map_create_context PangoContext * PangoCairoFontMap *fontmap pango_cairo_font_get_type GType void pango_cairo_font_get_scaled_font cairo_scaled_font_t * PangoCairoFont *font pango_cairo_update_context void cairo_t *cr, PangoContext *context pango_cairo_context_set_font_options void PangoContext *context, const cairo_font_options_t *options pango_cairo_context_get_font_options const cairo_font_options_t * PangoContext *context pango_cairo_context_set_resolution void PangoContext *context, double dpi pango_cairo_context_get_resolution double PangoContext *context pango_cairo_context_set_shape_renderer void PangoContext *context, PangoCairoShapeRendererFunc func, gpointer data, GDestroyNotify dnotify pango_cairo_context_get_shape_renderer PangoCairoShapeRendererFunc PangoContext *context, gpointer *data pango_cairo_create_context PangoContext * cairo_t *cr pango_cairo_create_layout PangoLayout * cairo_t *cr pango_cairo_update_layout void cairo_t *cr, PangoLayout *layout pango_cairo_show_glyph_string void cairo_t *cr, PangoFont *font, PangoGlyphString *glyphs pango_cairo_show_glyph_item void cairo_t *cr, const char *text, PangoGlyphItem *glyph_item pango_cairo_show_layout_line void cairo_t *cr, PangoLayoutLine *line pango_cairo_show_layout void cairo_t *cr, PangoLayout *layout pango_cairo_show_error_underline void cairo_t *cr, double x, double y, double width, double height pango_cairo_glyph_string_path void cairo_t *cr, PangoFont *font, PangoGlyphString *glyphs pango_cairo_layout_line_path void cairo_t *cr, PangoLayoutLine *line pango_cairo_layout_path void cairo_t *cr, PangoLayout *layout pango_cairo_error_underline_path void cairo_t *cr, double x, double y, double width, double height PangoCairoFont PangoCairoFontMap PANGO_TYPE_CORE_TEXT_FONT #define PANGO_TYPE_CORE_TEXT_FONT (pango_core_text_font_get_type ()) PANGO_CORE_TEXT_FONT #define PANGO_CORE_TEXT_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CORE_TEXT_FONT, PangoCoreTextFont)) PANGO_IS_CORE_TEXT_FONT #define PANGO_IS_CORE_TEXT_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CORE_TEXT_FONT)) pango_core_text_font_get_type GType void pango_core_text_font_get_ctfont CTFontRef PangoCoreTextFont *font PangoCoreTextFont PangoCoreTextFontClass PANGO_FC_TYPE_DECODER #define PANGO_FC_TYPE_DECODER (pango_fc_decoder_get_type()) PANGO_FC_DECODER #define PANGO_FC_DECODER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_FC_TYPE_DECODER, PangoFcDecoder)) PANGO_FC_IS_DECODER #define PANGO_FC_IS_DECODER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_FC_TYPE_DECODER)) PANGO_FC_DECODER_CLASS #define PANGO_FC_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_FC_TYPE_DECODER, PangoFcDecoderClass)) PANGO_FC_IS_DECODER_CLASS #define PANGO_FC_IS_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_FC_TYPE_DECODER)) PANGO_FC_DECODER_GET_CLASS #define PANGO_FC_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_FC_TYPE_DECODER, PangoFcDecoderClass)) PANGO_TYPE_FC_DECODER #define PANGO_TYPE_FC_DECODER (pango_fc_decoder_get_type()) PANGO_IS_FC_DECODER #define PANGO_IS_FC_DECODER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FC_DECODER)) PANGO_IS_FC_DECODER_CLASS #define PANGO_IS_FC_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FC_DECODER)) PangoFcDecoder struct _PangoFcDecoder { /*< private >*/ GObject parent_instance; }; PangoFcDecoderClass struct _PangoFcDecoderClass { /*< private >*/ GObjectClass parent_class; /* vtable - not signals */ /*< public >*/ FcCharSet *(*get_charset) (PangoFcDecoder *decoder, PangoFcFont *fcfont); PangoGlyph (*get_glyph) (PangoFcDecoder *decoder, PangoFcFont *fcfont, guint32 wc); /*< private >*/ /* Padding for future expansion */ void (*_pango_reserved1) (void); void (*_pango_reserved2) (void); void (*_pango_reserved3) (void); void (*_pango_reserved4) (void); }; pango_fc_decoder_get_type GType void pango_fc_decoder_get_charset FcCharSet * PangoFcDecoder *decoder, PangoFcFont *fcfont pango_fc_decoder_get_glyph PangoGlyph PangoFcDecoder *decoder, PangoFcFont *fcfont, guint32 wc PANGO_RENDER_TYPE_FC #define PANGO_RENDER_TYPE_FC "PangoRenderFc" PANGO_FC_FONT_CLASS #define PANGO_FC_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FC_FONT, PangoFcFontClass)) PANGO_IS_FC_FONT_CLASS #define PANGO_IS_FC_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FC_FONT)) PANGO_FC_FONT_GET_CLASS #define PANGO_FC_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FC_FONT, PangoFcFontClass)) PangoFcFontClass struct _PangoFcFontClass { /*< private >*/ PangoFontClass parent_class; /*< public >*/ FT_Face (*lock_face) (PangoFcFont *font); void (*unlock_face) (PangoFcFont *font); gboolean (*has_char) (PangoFcFont *font, gunichar wc); guint (*get_glyph) (PangoFcFont *font, gunichar wc); PangoGlyph (*get_unknown_glyph) (PangoFcFont *font, gunichar wc); void (*shutdown) (PangoFcFont *font); /*< private >*/ /* Padding for future expansion */ void (*_pango_reserved1) (void); void (*_pango_reserved2) (void); void (*_pango_reserved3) (void); void (*_pango_reserved4) (void); }; PANGO_FC_TYPE_FONT #define PANGO_FC_TYPE_FONT (pango_fc_font_get_type ()) PANGO_FC_FONT #define PANGO_FC_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_FC_TYPE_FONT, PangoFcFont)) PANGO_FC_IS_FONT #define PANGO_FC_IS_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_FC_TYPE_FONT)) PANGO_TYPE_FC_FONT #define PANGO_TYPE_FC_FONT (pango_fc_font_get_type ()) PANGO_IS_FC_FONT #define PANGO_IS_FC_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FC_FONT)) PangoFcFont struct _PangoFcFont { PangoFont parent_instance; FcPattern *font_pattern; /* fully resolved pattern */ PangoFontMap *fontmap; /* associated map */ gpointer priv; /* used internally */ PangoMatrix matrix; /* used internally */ PangoFontDescription *description; GSList *metrics_by_lang; guint is_hinted : 1; guint is_transformed : 1; }; pango_fc_font_get_type GType void pango_fc_font_has_char gboolean PangoFcFont *font, gunichar wc pango_fc_font_get_glyph guint PangoFcFont *font, gunichar wc pango_fc_font_get_languages PangoLanguage ** PangoFcFont *font pango_fc_font_get_pattern FcPattern * PangoFcFont *font pango_fc_font_get_unknown_glyph PangoGlyph PangoFcFont *font, gunichar wc pango_fc_font_kern_glyphs void PangoFcFont *font, PangoGlyphString *glyphs pango_fc_font_lock_face FT_Face PangoFcFont *font pango_fc_font_unlock_face void PangoFcFont *font PangoFcFontClass PANGO_FC_TYPE_FONT_MAP #define PANGO_FC_TYPE_FONT_MAP (pango_fc_font_map_get_type ()) PANGO_FC_FONT_MAP #define PANGO_FC_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_FC_TYPE_FONT_MAP, PangoFcFontMap)) PANGO_FC_IS_FONT_MAP #define PANGO_FC_IS_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_FC_TYPE_FONT_MAP)) PANGO_TYPE_FC_FONT_MAP #define PANGO_TYPE_FC_FONT_MAP (pango_fc_font_map_get_type ()) PANGO_IS_FC_FONT_MAP #define PANGO_IS_FC_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FC_FONT_MAP)) pango_fc_font_map_get_type GType void pango_fc_font_map_cache_clear void PangoFcFontMap *fcfontmap pango_fc_font_map_config_changed void PangoFcFontMap *fcfontmap pango_fc_font_map_set_config void PangoFcFontMap *fcfontmap, FcConfig *fcconfig pango_fc_font_map_get_config FcConfig * PangoFcFontMap *fcfontmap PangoFcDecoderFindFunc PangoFcDecoder * FcPattern *pattern, gpointer user_data pango_fc_font_map_add_decoder_find_func void PangoFcFontMap *fcfontmap, PangoFcDecoderFindFunc findfunc, gpointer user_data, GDestroyNotify dnotify pango_fc_font_map_find_decoder PangoFcDecoder * PangoFcFontMap *fcfontmap, FcPattern *pattern pango_fc_font_description_from_pattern PangoFontDescription * FcPattern *pattern, gboolean include_size pango_fc_font_map_create_context PangoContext * PangoFcFontMap *fcfontmap pango_fc_font_map_shutdown void PangoFcFontMap *fcfontmap pango_fc_font_map_get_hb_face hb_face_t * PangoFcFontMap *fcfontmap, PangoFcFont *fcfont PangoFcSubstituteFunc void FcPattern *pattern, gpointer data pango_fc_font_map_set_default_substitute void PangoFcFontMap *fontmap, PangoFcSubstituteFunc func, gpointer data, GDestroyNotify notify pango_fc_font_map_substitute_changed void PangoFcFontMap *fontmap PANGO_FC_GRAVITY #define PANGO_FC_GRAVITY "pangogravity" PANGO_FC_VERSION #define PANGO_FC_VERSION "pangoversion" PANGO_FC_PRGNAME #define PANGO_FC_PRGNAME "prgname" PANGO_FC_FONT_FEATURES #define PANGO_FC_FONT_FEATURES "fontfeatures" PANGO_FC_FONT_VARIATIONS #define PANGO_FC_FONT_VARIATIONS "fontvariations" PangoFcFontMap PangoFcFontMapClass PangoFcFontMapPrivate PANGO_RENDER_TYPE_FT2 #define PANGO_RENDER_TYPE_FT2 "PangoRenderFT2" PANGO_FT2_TYPE_FONT_MAP #define PANGO_FT2_TYPE_FONT_MAP (pango_ft2_font_map_get_type ()) PANGO_FT2_FONT_MAP #define PANGO_FT2_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_FT2_TYPE_FONT_MAP, PangoFT2FontMap)) PANGO_FT2_IS_FONT_MAP #define PANGO_FT2_IS_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_FT2_TYPE_FONT_MAP)) PANGO_TYPE_FT2_FONT_MAP #define PANGO_TYPE_FT2_FONT_MAP (pango_ft2_font_map_get_type ()) PangoFT2SubstituteFunc void FcPattern *pattern, gpointer data pango_ft2_render void FT_Bitmap *bitmap, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y pango_ft2_render_transformed void FT_Bitmap *bitmap, const PangoMatrix *matrix, PangoFont *font, PangoGlyphString *glyphs, int x, int y pango_ft2_render_layout_line void FT_Bitmap *bitmap, PangoLayoutLine *line, int x, int y pango_ft2_render_layout_line_subpixel void FT_Bitmap *bitmap, PangoLayoutLine *line, int x, int y pango_ft2_render_layout void FT_Bitmap *bitmap, PangoLayout *layout, int x, int y pango_ft2_render_layout_subpixel void FT_Bitmap *bitmap, PangoLayout *layout, int x, int y pango_ft2_font_map_get_type GType void pango_ft2_font_map_new PangoFontMap * void pango_ft2_font_map_set_resolution void PangoFT2FontMap *fontmap, double dpi_x, double dpi_y pango_ft2_font_map_set_default_substitute void PangoFT2FontMap *fontmap, PangoFT2SubstituteFunc func, gpointer data, GDestroyNotify notify pango_ft2_font_map_substitute_changed void PangoFT2FontMap *fontmap pango_ft2_font_map_create_context PangoContext * PangoFT2FontMap *fontmap pango_ft2_get_context PangoContext * double dpi_x, double dpi_y pango_ft2_font_map_for_display PangoFontMap * void pango_ft2_shutdown_display void void pango_ft2_get_unknown_glyph PangoGlyph PangoFont *font pango_ft2_font_get_kerning int PangoFont *font, PangoGlyph left, PangoGlyph right pango_ft2_font_get_face FT_Face PangoFont *font pango_ft2_font_get_coverage PangoCoverage * PangoFont *font, PangoLanguage *language PangoFT2FontMap pango_hb_shape void PangoFont *font, const char *item_text, unsigned int item_length, const PangoAnalysis *analysis, PangoGlyphString *glyphs, const char *paragraph_text, unsigned int paragraph_length STRICT #define STRICT PANGO_RENDER_TYPE_WIN32 #define PANGO_RENDER_TYPE_WIN32 "PangoRenderWin32" pango_win32_get_context PangoContext * void pango_win32_render void HDC hdc, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y pango_win32_render_layout_line void HDC hdc, PangoLayoutLine *line, int x, int y pango_win32_render_layout void HDC hdc, PangoLayout *layout, int x, int y pango_win32_render_transformed void HDC hdc, const PangoMatrix *matrix, PangoFont *font, PangoGlyphString *glyphs, int x, int y pango_win32_get_unknown_glyph PangoGlyph PangoFont *font, gunichar wc pango_win32_font_get_glyph_index gint PangoFont *font, gunichar wc pango_win32_get_dc HDC void pango_win32_get_debug_flag gboolean void pango_win32_font_select_font gboolean PangoFont *font, HDC hdc pango_win32_font_done_font void PangoFont *font pango_win32_font_get_metrics_factor double PangoFont *font pango_win32_font_cache_new PangoWin32FontCache * void pango_win32_font_cache_free void PangoWin32FontCache *cache pango_win32_font_cache_load HFONT PangoWin32FontCache *cache, const LOGFONTA *logfont pango_win32_font_cache_loadw HFONT PangoWin32FontCache *cache, const LOGFONTW *logfont pango_win32_font_cache_unload void PangoWin32FontCache *cache, HFONT hfont pango_win32_font_map_for_display PangoFontMap * void pango_win32_shutdown_display void void pango_win32_font_map_get_font_cache PangoWin32FontCache * PangoFontMap *font_map pango_win32_font_logfont LOGFONTA * PangoFont *font pango_win32_font_logfontw LOGFONTW * PangoFont *font pango_win32_font_description_from_logfont PangoFontDescription * const LOGFONTA *lfp pango_win32_font_description_from_logfontw PangoFontDescription * const LOGFONTW *lfp PangoWin32FontCache PANGO_XFT_TYPE_RENDERER #define PANGO_XFT_TYPE_RENDERER (pango_xft_renderer_get_type()) PANGO_XFT_RENDERER #define PANGO_XFT_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_XFT_TYPE_RENDERER, PangoXftRenderer)) PANGO_XFT_IS_RENDERER #define PANGO_XFT_IS_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_XFT_TYPE_RENDERER)) PANGO_XFT_RENDERER_CLASS #define PANGO_XFT_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_XFT_TYPE_RENDERER, PangoXftRendererClass)) PANGO_XFT_IS_RENDERER_CLASS #define PANGO_XFT_IS_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_XFT_TYPE_RENDERER)) PANGO_XFT_RENDERER_GET_CLASS #define PANGO_XFT_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_XFT_TYPE_RENDERER, PangoXftRendererClass)) PANGO_TYPE_XFT_RENDERER #define PANGO_TYPE_XFT_RENDERER (pango_xft_renderer_get_type()) PANGO_IS_XFT_RENDERER #define PANGO_IS_XFT_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_XFT_RENDERER)) PANGO_IS_XFT_RENDERER_CLASS #define PANGO_IS_XFT_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_XFT_RENDERER)) PangoXftRenderer struct _PangoXftRenderer { /*< private >*/ PangoRenderer parent_instance; Display *display; int screen; XftDraw *draw; PangoXftRendererPrivate *priv; }; PangoXftRendererClass struct _PangoXftRendererClass { /*< private >*/ PangoRendererClass parent_class; /*< public >*/ void (*composite_trapezoids) (PangoXftRenderer *xftrenderer, PangoRenderPart part, XTrapezoid *trapezoids, int n_trapezoids); void (*composite_glyphs) (PangoXftRenderer *xftrenderer, XftFont *xft_font, XftGlyphSpec *glyphs, int n_glyphs); }; pango_xft_renderer_get_type GType void pango_xft_renderer_new PangoRenderer * Display *display, int screen pango_xft_renderer_set_draw void PangoXftRenderer *xftrenderer, XftDraw *draw pango_xft_renderer_set_default_color void PangoXftRenderer *xftrenderer, PangoColor *default_color pango_xft_render void XftDraw *draw, XftColor *color, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y pango_xft_picture_render void Display *display, Picture src_picture, Picture dest_picture, PangoFont *font, PangoGlyphString *glyphs, gint x, gint y pango_xft_render_transformed void XftDraw *draw, XftColor *color, PangoMatrix *matrix, PangoFont *font, PangoGlyphString *glyphs, int x, int y pango_xft_render_layout_line void XftDraw *draw, XftColor *color, PangoLayoutLine *line, int x, int y pango_xft_render_layout void XftDraw *draw, XftColor *color, PangoLayout *layout, int x, int y PangoXftRendererPrivate PANGO_RENDER_TYPE_XFT #define PANGO_RENDER_TYPE_XFT "PangoRenderXft" PANGO_XFT_TYPE_FONT_MAP #define PANGO_XFT_TYPE_FONT_MAP (pango_xft_font_map_get_type()) PANGO_XFT_FONT_MAP #define PANGO_XFT_FONT_MAP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PANGO_XFT_TYPE_FONT_MAP, PangoXftFontMap)) PANGO_XFT_IS_FONT_MAP #define PANGO_XFT_IS_FONT_MAP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PANGO_XFT_TYPE_FONT_MAP)) PANGO_TYPE_XFT_FONT_MAP #define PANGO_TYPE_XFT_FONT_MAP (pango_xft_font_map_get_type ()) PangoXftSubstituteFunc void FcPattern *pattern, gpointer data pango_xft_get_font_map PangoFontMap * Display *display, int screen pango_xft_get_context PangoContext * Display *display, int screen pango_xft_shutdown_display void Display *display, int screen pango_xft_set_default_substitute void Display *display, int screen, PangoXftSubstituteFunc func, gpointer data, GDestroyNotify notify pango_xft_substitute_changed void Display *display, int screen pango_xft_font_map_get_type GType void PANGO_XFT_TYPE_FONT #define PANGO_XFT_TYPE_FONT (pango_xft_font_get_type ()) PANGO_XFT_FONT #define PANGO_XFT_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_XFT_TYPE_FONT, PangoXftFont)) PANGO_XFT_IS_FONT #define PANGO_XFT_IS_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_XFT_TYPE_FONT)) PANGO_TYPE_XFT_FONT #define PANGO_TYPE_XFT_FONT (pango_xft_font_get_type ()) pango_xft_font_get_type GType void pango_xft_font_get_font XftFont * PangoFont *font pango_xft_font_get_display Display * PangoFont *font pango_xft_font_lock_face FT_Face PangoFont *font pango_xft_font_unlock_face void PangoFont *font pango_xft_font_get_glyph guint PangoFont *font, gunichar wc pango_xft_font_has_char gboolean PangoFont *font, gunichar wc pango_xft_font_get_unknown_glyph PangoGlyph PangoFont *font, gunichar wc PangoXftFont PangoXftFontMap pango_attr_type_get_type GType void PANGO_TYPE_ATTR_TYPE #define PANGO_TYPE_ATTR_TYPE (pango_attr_type_get_type ()) pango_underline_get_type GType void PANGO_TYPE_UNDERLINE #define PANGO_TYPE_UNDERLINE (pango_underline_get_type ()) pango_overline_get_type GType void PANGO_TYPE_OVERLINE #define PANGO_TYPE_OVERLINE (pango_overline_get_type ()) pango_show_flags_get_type GType void PANGO_TYPE_SHOW_FLAGS #define PANGO_TYPE_SHOW_FLAGS (pango_show_flags_get_type ()) pango_bidi_type_get_type GType void PANGO_TYPE_BIDI_TYPE #define PANGO_TYPE_BIDI_TYPE (pango_bidi_type_get_type ()) pango_coverage_level_get_type GType void PANGO_TYPE_COVERAGE_LEVEL #define PANGO_TYPE_COVERAGE_LEVEL (pango_coverage_level_get_type ()) pango_direction_get_type GType void PANGO_TYPE_DIRECTION #define PANGO_TYPE_DIRECTION (pango_direction_get_type ()) pango_style_get_type GType void PANGO_TYPE_STYLE #define PANGO_TYPE_STYLE (pango_style_get_type ()) pango_variant_get_type GType void PANGO_TYPE_VARIANT #define PANGO_TYPE_VARIANT (pango_variant_get_type ()) pango_weight_get_type GType void PANGO_TYPE_WEIGHT #define PANGO_TYPE_WEIGHT (pango_weight_get_type ()) pango_stretch_get_type GType void PANGO_TYPE_STRETCH #define PANGO_TYPE_STRETCH (pango_stretch_get_type ()) pango_font_mask_get_type GType void PANGO_TYPE_FONT_MASK #define PANGO_TYPE_FONT_MASK (pango_font_mask_get_type ()) pango_shape_flags_get_type GType void PANGO_TYPE_SHAPE_FLAGS #define PANGO_TYPE_SHAPE_FLAGS (pango_shape_flags_get_type ()) pango_gravity_get_type GType void PANGO_TYPE_GRAVITY #define PANGO_TYPE_GRAVITY (pango_gravity_get_type ()) pango_gravity_hint_get_type GType void PANGO_TYPE_GRAVITY_HINT #define PANGO_TYPE_GRAVITY_HINT (pango_gravity_hint_get_type ()) pango_alignment_get_type GType void PANGO_TYPE_ALIGNMENT #define PANGO_TYPE_ALIGNMENT (pango_alignment_get_type ()) pango_wrap_mode_get_type GType void PANGO_TYPE_WRAP_MODE #define PANGO_TYPE_WRAP_MODE (pango_wrap_mode_get_type ()) pango_ellipsize_mode_get_type GType void PANGO_TYPE_ELLIPSIZE_MODE #define PANGO_TYPE_ELLIPSIZE_MODE (pango_ellipsize_mode_get_type ()) pango_render_part_get_type GType void PANGO_TYPE_RENDER_PART #define PANGO_TYPE_RENDER_PART (pango_render_part_get_type ()) pango_script_get_type GType void PANGO_TYPE_SCRIPT #define PANGO_TYPE_SCRIPT (pango_script_get_type ()) pango_tab_align_get_type GType void PANGO_TYPE_TAB_ALIGN #define PANGO_TYPE_TAB_ALIGN (pango_tab_align_get_type ()) PANGO_VERSION_MAJOR #define PANGO_VERSION_MAJOR 1 PANGO_VERSION_MINOR #define PANGO_VERSION_MINOR 48 PANGO_VERSION_MICRO #define PANGO_VERSION_MICRO 1 PANGO_VERSION_STRING #define PANGO_VERSION_STRING "1.48.1" docs/pango.signals0000664000175000017500000000000014002404352014304 0ustar mclasenmclasendocs/pango.hierarchy0000664000175000017500000000230314002404352014632 0ustar mclasenmclasenGObject PangoFont PangoFcFont PangoCairoFcFont PangoFT2Font PangoXftFont PangoFontMap PangoFcFontMap PangoCairoFcFontMap PangoFT2FontMap PangoXftFontMap PangoRenderer PangoCairoRenderer PangoFT2Renderer PangoXftRenderer PangoContext PangoCoverage PangoEngine PangoEngineLang PangoEngineShape PangoFcDecoder PangoFontFace PangoFontFamily PangoFontset PangoFontsetSimple PangoLayout PangoOTInfo PangoOTRuleset GInterface GTypePlugin PangoCairoFont GListModel PangoCairoFontMap GEnum PangoAlignment PangoAttrType PangoBidiType PangoCoverageLevel PangoDirection PangoEllipsizeMode PangoGravity PangoGravityHint PangoRenderPart PangoScript PangoStretch PangoStyle PangoTabAlign PangoUnderline PangoVariant PangoWeight PangoWrapMode GBoxed GValueArray PangoAttrIterator PangoAttrList PangoAttribute PangoColor PangoFontDescription PangoFontMetrics PangoGlyphItem PangoGlyphItemIter PangoGlyphString PangoItem PangoLanguage PangoLayoutIter PangoLayoutLine PangoMatrix PangoScriptIter PangoTabArray GFlags PangoFontMask PangoShapeFlags PangoShowFlags docs/pango.interfaces0000664000175000017500000000032414002404352015000 0ustar mclasenmclasenPangoCairoFcFont PangoCairoFont PangoFontMap GListModel PangoFcFontMap GListModel PangoCairoFcFontMap GListModel PangoCairoFontMap PangoFT2FontMap GListModel PangoXftFontMap GListModel PangoFontFamily GListModel docs/pango.prerequisites0000664000175000017500000000011314002404352015555 0ustar mclasenmclasenPangoCairoFont PangoFont GListModel GObject PangoCairoFontMap PangoFontMap docs/pango.args0000664000175000017500000000146514002404352013620 0ustar mclasenmclasen PangoFcFont::fontmap PangoFcFontMap* rw Font Map The PangoFc font map this font is associated with (Since: 1.26). PangoFcFont::pattern gpointer rwX Pattern The fontconfig pattern for this font. PangoXftRenderer::display gpointer wX Display The display being rendered to. PangoXftRenderer::screen int >= 0 wX Screen The screen being rendered to. 0 docs/pango.actions0000664000175000017500000000000014002404352014304 0ustar mclasenmclasendocs/pango-undocumented.txt0000664000175000017500000000054714002404352016173 0ustar mclasenmclasen99% symbol docs coverage. 844 symbols documented. 4 symbols incomplete. 8 not documented. PANGO_IS_FONT PANGO_IS_FONT_FACE PANGO_IS_FONT_FAMILY PANGO_IS_FONT_MAP PANGO_TYPE_COVERAGE_LEVEL PANGO_TYPE_RENDER_PART PangoAttrIterator () PangoAttrList () PangoFontMapClass (get_family, get_face) PangoGlyphItemIter () PangoMap PangoMapEntry docs/pango-undeclared.txt0000664000175000017500000000000014002404352015567 0ustar mclasenmclasendocs/pango-unused.txt0000664000175000017500000000305514002404352015001 0ustar mclasenmclasenInterval PANGO_AVAILABLE_IN_1_46 PANGO_AVAILABLE_IN_1_48 PANGO_CAIRO_IS_FONT PANGO_CAIRO_IS_FONT_MAP PANGO_CAIRO_TYPE_FONT PANGO_CAIRO_TYPE_FONT_MAP PANGO_DEPRECATED_IN_1_46 PANGO_DEPRECATED_IN_1_46_FOR PANGO_DEPRECATED_IN_1_48 PANGO_DEPRECATED_IN_1_48_FOR PANGO_FC_IS_DECODER PANGO_FC_IS_DECODER_CLASS PANGO_FC_IS_FONT PANGO_FC_IS_FONT_MAP PANGO_FC_TYPE_DECODER PANGO_FC_TYPE_FONT PANGO_FC_TYPE_FONT_MAP PANGO_FT2_TYPE_FONT_MAP PANGO_OT_IS_INFO PANGO_OT_IS_RULESET PANGO_OT_TYPE_BUFFER PANGO_OT_TYPE_INFO PANGO_OT_TYPE_RULESET PANGO_OT_TYPE_RULESET_DESCRIPTION PANGO_RENDER_TYPE_FC PANGO_RENDER_TYPE_FT2 PANGO_RENDER_TYPE_NONE PANGO_RENDER_TYPE_WIN32 PANGO_RENDER_TYPE_XFT PANGO_TRACE_CURRENT_TIME PANGO_TYPE_FONTSET_SIMPLE PANGO_TYPE_OT_BUFFER PANGO_TYPE_OT_RULESET_DESCRIPTION PANGO_TYPE_OVERLINE PANGO_TYPE_SHAPE_FLAGS PANGO_TYPE_SHOW_FLAGS PANGO_VERSION_1_46 PANGO_VERSION_1_48 PANGO_XFT_IS_RENDERER PANGO_XFT_IS_RENDERER_CLASS PANGO_XFT_TYPE_FONT PANGO_XFT_TYPE_FONT_MAP PANGO_XFT_TYPE_RENDERER PangoFontsetSimple g_trace_mark pango_attr_iterator_get_type pango_fc_font_map_get_hb_face pango_fontset_simple_append pango_fontset_simple_new pango_fontset_simple_size pango_hb_shape pango_ot_buffer_get_type pango_ot_ruleset_description_get_type pango_overline_get_type pango_parse_flags pango_script_iter_get_type pango_shape_flags_get_type pango_show_flags_get_type pango_trace_mark PangoFcFontMapClass(default_substitute, new_font, get_resolution, context_key_get, context_key_copy, context_key_free, context_key_hash, context_key_equal, fontset_key_substitute, create_font) docs/sgml.stamp0000664000175000017500000000001114002404352013630 0ustar mclasenmclasentimestampdocs/html.stamp0000664000175000017500000000001114002404367013640 0ustar mclasenmclasentimestamp