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author | Behdad Esfahbod <behdad@behdad.org> | 2013-09-27 14:36:51 -0400 |
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committer | Behdad Esfahbod <behdad@behdad.org> | 2013-09-27 14:36:51 -0400 |
commit | 6d08bcab0d2821365a2ffd955cbbb07270565664 (patch) | |
tree | 6bffdc716a62ea60c0db7ed08d7f5a0d205302f1 /pango/pango-glyph.h | |
parent | bb5c4c8497157afddcb5ced7e16c5dad4e893a03 (diff) | |
download | pango-6d08bcab0d2821365a2ffd955cbbb07270565664.tar.gz |
Bug 685167 - migrate docs to no-tmpl flavour
Patch from Rafał Mużyło.
Diffstat (limited to 'pango/pango-glyph.h')
-rw-r--r-- | pango/pango-glyph.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/pango/pango-glyph.h b/pango/pango-glyph.h index 91bae32a..4b25d084 100644 --- a/pango/pango-glyph.h +++ b/pango/pango-glyph.h @@ -33,10 +33,30 @@ typedef struct _PangoGlyphInfo PangoGlyphInfo; typedef struct _PangoGlyphString PangoGlyphString; /* 1024ths of a device unit */ +/** + * 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. + */ typedef gint32 PangoGlyphUnit; /* Positioning information about a glyph */ +/** + * PangoGlyphGeometry: + * @width: the logical width to use for the the character. + * @x_offset: horizontal offset from nominal character position. + * @y_offset: vertical offset from nominal character position. + * + * The #PangoGlyphGeometry structure contains width and positioning + * information for a single glyph. + */ struct _PangoGlyphGeometry { PangoGlyphUnit width; @@ -46,6 +66,18 @@ struct _PangoGlyphGeometry /* Visual attributes of a glyph */ +/** + * PangoGlyphVisAttr: + * @is_cluster_start: 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.) + * + * The PangoGlyphVisAttr is used to communicate information between + * the shaping phase and the rendering phase. More attributes may be + * added in the future. + */ struct _PangoGlyphVisAttr { guint is_cluster_start : 1; @@ -53,6 +85,16 @@ struct _PangoGlyphVisAttr /* A single glyph */ +/** + * PangoGlyphInfo: + * @glyph: the glyph itself. + * @geometry: the positional information about the glyph. + * @attr: the visual attributes of the glyph. + * + * The #PangoGlyphInfo structure represents a single glyph together with + * positioning information and visual attributes. + * It contains the following fields. + */ struct _PangoGlyphInfo { PangoGlyph glyph; @@ -63,6 +105,14 @@ struct _PangoGlyphInfo /* A string of glyphs with positional information and visual attributes - * ready for drawing */ +/** + * PangoGlyphString: + * + * 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. + */ struct _PangoGlyphString { gint num_glyphs; @@ -79,6 +129,11 @@ struct _PangoGlyphString { gint space; }; +/** + * PANGO_TYPE_GLYPH_STRING: + * + * The #GObject type for #PangoGlyphString. + */ #define PANGO_TYPE_GLYPH_STRING (pango_glyph_string_get_type ()) PangoGlyphString *pango_glyph_string_new (void); |