178 lines
5.6 KiB
C
178 lines
5.6 KiB
C
/* 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))
|
|
|
|
PANGO_AVAILABLE_IN_ALL
|
|
GType pango_fontset_get_type (void) G_GNUC_CONST;
|
|
|
|
typedef struct _PangoFontset PangoFontset;
|
|
|
|
/**
|
|
* 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);
|
|
|
|
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);
|
|
|
|
#ifdef PANGO_ENABLE_BACKEND
|
|
|
|
typedef struct _PangoFontsetClass PangoFontsetClass;
|
|
|
|
#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))
|
|
|
|
/**
|
|
* 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);
|
|
};
|
|
|
|
/*
|
|
* PangoFontsetSimple
|
|
*/
|
|
|
|
/**
|
|
* 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_AVAILABLE_IN_ALL
|
|
GType pango_fontset_simple_get_type (void) G_GNUC_CONST;
|
|
|
|
PANGO_AVAILABLE_IN_ALL
|
|
PangoFontsetSimple * pango_fontset_simple_new (PangoLanguage *language);
|
|
PANGO_AVAILABLE_IN_ALL
|
|
void pango_fontset_simple_append (PangoFontsetSimple *fontset,
|
|
PangoFont *font);
|
|
PANGO_AVAILABLE_IN_ALL
|
|
int pango_fontset_simple_size (PangoFontsetSimple *fontset);
|
|
|
|
#endif /* PANGO_ENABLE_BACKEND */
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __PANGO_FONTSET_H__ */
|