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pango-fontset.h
/* Pango * pango-fontset.h: Font set handling * * Copyright (C) 2001 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_FONTSET_H__ #define __PANGO_FONTSET_H__ #include <pango/pango-coverage.h> #include <pango/pango-types.h> #include <glib-object.h> G_BEGIN_DECLS /* * PangoFontset */ /** * PANGO_TYPE_FONTSET: * * The #GObject type for #PangoFontset. */ #define PANGO_TYPE_FONTSET (pango_fontset_get_type ()) #define PANGO_FONTSET(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONTSET, PangoFontset)) #define PANGO_IS_FONTSET(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONTSET)) #define PANGO_FONTSET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONTSET, PangoFontsetClass)) #define PANGO_IS_FONTSET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONTSET)) #define PANGO_FONTSET_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONTSET, PangoFontsetClass)) PANGO_AVAILABLE_IN_ALL GType pango_fontset_get_type (void) G_GNUC_CONST; typedef struct _PangoFontset PangoFontset; typedef struct _PangoFontsetClass PangoFontsetClass; /** * PangoFontsetForeachFunc: * @fontset: a #PangoFontset * @font: a font from @fontset * @user_data: callback data * * A callback function used by pango_fontset_foreach() when enumerating * the fonts in a fontset. * * Returns: if %TRUE, stop iteration and return immediately. * * Since: 1.4 **/ typedef gboolean (*PangoFontsetForeachFunc) (PangoFontset *fontset, PangoFont *font, gpointer user_data); #ifndef PANGO_DISABLE_DEPRECATED /** * 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 _PangoFontset { GObject parent_instance; }; /** * PangoFontsetClass: * @parent_class: parent #GObjectClass. * @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(). * * The #PangoFontsetClass structure holds the virtual functions for * a particular #PangoFontset implementation. */ 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: * * The #GObject type for #PangoFontsetSimple. */ /** * PangoFontsetSimple: * * #PangoFontsetSimple is a implementation of the abstract * #PangoFontset base class in terms of an array of fonts, * which the creator provides when constructing the * #PangoFontsetSimple. */ #define PANGO_TYPE_FONTSET_SIMPLE (pango_fontset_simple_get_type ()) #define PANGO_FONTSET_SIMPLE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONTSET_SIMPLE, PangoFontsetSimple)) #define PANGO_IS_FONTSET_SIMPLE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONTSET_SIMPLE)) typedef struct _PangoFontsetSimple PangoFontsetSimple; typedef struct _PangoFontsetSimpleClass PangoFontsetSimpleClass; PANGO_DEPRECATED_IN_1_44 GType pango_fontset_simple_get_type (void) G_GNUC_CONST; PANGO_DEPRECATED_IN_1_44 PangoFontsetSimple * pango_fontset_simple_new (PangoLanguage *language); PANGO_DEPRECATED_IN_1_44 void pango_fontset_simple_append (PangoFontsetSimple *fontset, PangoFont *font); PANGO_DEPRECATED_IN_1_44 int pango_fontset_simple_size (PangoFontsetSimple *fontset); #endif /* PANGO_DISABLE_DEPRECATED */ PANGO_AVAILABLE_IN_ALL PangoFont * pango_fontset_get_font (PangoFontset *fontset, guint wc); PANGO_AVAILABLE_IN_ALL PangoFontMetrics *pango_fontset_get_metrics (PangoFontset *fontset); PANGO_AVAILABLE_IN_1_4 void pango_fontset_foreach (PangoFontset *fontset, PangoFontsetForeachFunc func, gpointer data); G_END_DECLS #endif /* __PANGO_FONTSET_H__ */