/* Pango * pangofc-font.h: Base fontmap type for fontconfig-based backends * * Copyright (C) 2003 Red Hat Software * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef __PANGO_FC_FONT_H__ #define __PANGO_FC_FONT_H__ #include #include FT_FREETYPE_H #include #include #include #include G_BEGIN_DECLS #define PANGO_TYPE_FC_FONT (pango_fc_font_get_type ()) #define PANGO_FC_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FC_FONT, PangoFcFont)) #define PANGO_IS_FC_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FC_FONT)) typedef struct _PangoFcFont PangoFcFont; typedef struct _PangoFcFontClass PangoFcFontClass; #if defined(PANGO_ENABLE_ENGINE) || defined(PANGO_ENABLE_BACKEND) /** * PANGO_RENDER_TYPE_FC: * * A string constant used to identify shape engines that work * with the fontconfig based backends. See the @engine_type field * of #PangoEngineInfo. **/ #define PANGO_RENDER_TYPE_FC "PangoRenderFc" #ifdef PANGO_ENABLE_BACKEND #define PANGO_FC_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FC_FONT, PangoFcFontClass)) #define PANGO_IS_FC_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FC_FONT)) #define PANGO_FC_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FC_FONT, PangoFcFontClass)) /** * PangoFcFont: * * #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. **/ 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; }; /** * PangoFcFontClass: * @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. * @shutdown: Performs any font-specific shutdown code that * needs to be done when pango_fc_font_map_shutdown is called. * May be %NULL. * * Class structure for #PangoFcFont. **/ 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); }; #endif /* PANGO_ENABLE_BACKEND */ gboolean pango_fc_font_has_char (PangoFcFont *font, gunichar wc); guint pango_fc_font_get_glyph (PangoFcFont *font, gunichar wc); #ifndef PANGO_DISABLE_DEPRECATED PangoGlyph pango_fc_font_get_unknown_glyph (PangoFcFont *font, gunichar wc); #endif /* PANGO_DISABLE_DEPRECATED */ void pango_fc_font_kern_glyphs (PangoFcFont *font, PangoGlyphString *glyphs); #endif /* PANGO_ENABLE_ENGINE || PANGO_ENABLE_BACKEND */ GType pango_fc_font_get_type (void) G_GNUC_CONST; FT_Face pango_fc_font_lock_face (PangoFcFont *font); void pango_fc_font_unlock_face (PangoFcFont *font); G_END_DECLS #endif /* __PANGO_FC_FONT_H__ */
