1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* 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_base_metrics_for_context) (PangoCairoFont *cfont,
PangoContext *context);
gssize cf_priv_offset;
};
gboolean _pango_cairo_font_install (PangoFont *font,
cairo_t *cr,
gboolean has_light_background);
gboolean _pango_cairo_font_uninstall (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,
PangoGravity gravity,
const cairo_font_options_t *font_options,
const PangoMatrix *pango_ctm,
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;
_PANGO_EXTERN
GType pango_cairo_renderer_get_type (void) G_GNUC_CONST;
const cairo_font_options_t *_pango_cairo_context_get_merged_font_options (PangoContext *context);
G_END_DECLS
#endif /* __PANGOCAIRO_PRIVATE_H__ */
|
