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/* Pango
* pangocairo-private.h: private symbols for the Cairo backend
*
* Copyright (C) 2000,2004 Red Hat, Inc.
*
* 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 __PANGOCAIRO_PRIVATE_H__
#define __PANGOCAIRO_PRIVATE_H__
#include <pango/pangocairo.h>
#include <pango/pango-renderer.h>
G_BEGIN_DECLS
#define PANGO_CAIRO_FONT_MAP_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), PANGO_TYPE_CAIRO_FONT_MAP, PangoCairoFontMapIface))
typedef struct _PangoCairoFontMapIface PangoCairoFontMapIface;
struct _PangoCairoFontMapIface
{
GTypeInterface g_iface;
void (*set_resolution) (PangoCairoFontMap *fontmap,
double dpi);
double (*get_resolution) (PangoCairoFontMap *fontmap);
cairo_font_type_t (*get_font_type) (PangoCairoFontMap *fontmap);
};
#define PANGO_CAIRO_FONT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), PANGO_TYPE_CAIRO_FONT, PangoCairoFontIface))
typedef struct _PangoCairoFontIface PangoCairoFontIface;
typedef struct _PangoCairoFontPrivate PangoCairoFontPrivate;
typedef struct _PangoCairoFontHexBoxInfo PangoCairoFontHexBoxInfo;
typedef struct _PangoCairoFontPrivateScaledFontData PangoCairoFontPrivateScaledFontData;
typedef struct _PangoCairoFontGlyphExtentsCacheEntry PangoCairoFontGlyphExtentsCacheEntry;
struct _PangoCairoFontHexBoxInfo
{
PangoCairoFont *font;
int rows;
double digit_width;
double digit_height;
double pad_x;
double pad_y;
double line_width;
double box_descent;
double box_height;
};
struct _PangoCairoFontPrivateScaledFontData
{
cairo_matrix_t font_matrix;
cairo_matrix_t ctm;
cairo_font_options_t *options;
};
struct _PangoCairoFontPrivate
{
PangoCairoFont *cfont;
PangoCairoFontPrivateScaledFontData *data;
cairo_scaled_font_t *scaled_font;
PangoCairoFontHexBoxInfo *hbi;
gboolean is_hinted;
PangoGravity gravity;
PangoRectangle font_extents;
PangoCairoFontGlyphExtentsCacheEntry *glyph_extents_cache;
GSList *metrics_by_lang;
};
struct _PangoCairoFontIface
{
GTypeInterface g_iface;
cairo_font_face_t *(*create_font_face) (PangoCairoFont *cfont);
PangoFontMetrics *(*create_metrics_for_context) (PangoCairoFont *cfont,
PangoContext *context);
gssize cf_priv_offset;
};
gboolean _pango_cairo_font_install (PangoFont *font,
cairo_t *cr);
PangoFontMetrics * _pango_cairo_font_get_metrics (PangoFont *font,
PangoLanguage *language);
PangoCairoFontHexBoxInfo *_pango_cairo_font_get_hex_box_info (PangoCairoFont *cfont);
void _pango_cairo_font_private_initialize (PangoCairoFontPrivate *cf_priv,
PangoCairoFont *font,
PangoContext *context,
const PangoFontDescription *desc,
const cairo_matrix_t *font_matrix);
void _pango_cairo_font_private_finalize (PangoCairoFontPrivate *cf_priv);
cairo_scaled_font_t *_pango_cairo_font_private_get_scaled_font (PangoCairoFontPrivate *cf_priv);
gboolean _pango_cairo_font_private_is_metrics_hinted (PangoCairoFontPrivate *cf_priv);
void _pango_cairo_font_private_get_glyph_extents (PangoCairoFontPrivate *cf_priv,
PangoGlyph glyph,
PangoRectangle *ink_rect,
PangoRectangle *logical_rect);
#define PANGO_TYPE_CAIRO_RENDERER (pango_cairo_renderer_get_type())
#define PANGO_CAIRO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CAIRO_RENDERER, PangoCairoRenderer))
#define PANGO_IS_CAIRO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CAIRO_RENDERER))
typedef struct _PangoCairoRenderer PangoCairoRenderer;
GType pango_cairo_renderer_get_type (void) G_GNUC_CONST;
const cairo_font_options_t *_pango_cairo_context_get_merged_font_options (PangoContext *context);
typedef struct _PangoCairoWarningHistory PangoCairoWarningHistory;
struct _PangoCairoWarningHistory {
guint font_get_scaled_font : 1;
};
extern PangoCairoWarningHistory _pango_cairo_warning_history;
G_END_DECLS
#endif /* __PANGOCAIRO_PRIVATE_H__ */
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