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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/* Pango
* pango-font.h: Font handling
*
* Copyright (C) 2000 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_FONT_PRIVATE_H__
#define __PANGO_FONT_PRIVATE_H__
#include <pango/pango-font.h>
#include <pango/pango-coverage.h>
#include <pango/pango-types.h>
#include <glib-object.h>
G_BEGIN_DECLS
PANGO_AVAILABLE_IN_ALL
PangoFontMetrics *pango_font_metrics_new (void);
struct _PangoFontMetrics
{
/* <private> */
guint ref_count;
int ascent;
int descent;
int height;
int approximate_char_width;
int approximate_digit_width;
int underline_position;
int underline_thickness;
int strikethrough_position;
int strikethrough_thickness;
};
#define PANGO_FONT_FAMILY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_FAMILY, PangoFontFamilyClass))
#define PANGO_IS_FONT_FAMILY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_FAMILY))
#define PANGO_FONT_FAMILY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_FAMILY, PangoFontFamilyClass))
typedef struct _PangoFontFamilyClass PangoFontFamilyClass;
/**
* PangoFontFamily:
*
* The #PangoFontFamily structure is used to represent a family of related
* font faces. The faces in a family share a common design, but differ in
* slant, weight, width and other aspects.
*/
struct _PangoFontFamily
{
GObject parent_instance;
};
struct _PangoFontFamilyClass
{
GObjectClass parent_class;
/*< public >*/
void (*list_faces) (PangoFontFamily *family,
PangoFontFace ***faces,
int *n_faces);
const char * (*get_name) (PangoFontFamily *family);
gboolean (*is_monospace) (PangoFontFamily *family);
gboolean (*is_variable) (PangoFontFamily *family);
/*< private >*/
/* Padding for future expansion */
void (*_pango_reserved2) (void);
void (*_pango_reserved3) (void);
};
#define PANGO_FONT_FACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_FACE, PangoFontFaceClass))
#define PANGO_IS_FONT_FACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_FACE))
#define PANGO_FONT_FACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_FACE, PangoFontFaceClass))
typedef struct _PangoFontFaceClass PangoFontFaceClass;
/**
* PangoFontFace:
*
* The #PangoFontFace structure is used to represent a group of fonts with
* the same family, slant, weight, width, but varying sizes.
*/
struct _PangoFontFace
{
GObject parent_instance;
};
struct _PangoFontFaceClass
{
GObjectClass parent_class;
/*< public >*/
const char * (*get_face_name) (PangoFontFace *face);
PangoFontDescription * (*describe) (PangoFontFace *face);
void (*list_sizes) (PangoFontFace *face,
int **sizes,
int *n_sizes);
gboolean (*is_synthesized) (PangoFontFace *face);
/*< private >*/
/* Padding for future expansion */
void (*_pango_reserved3) (void);
void (*_pango_reserved4) (void);
};
#define PANGO_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT, PangoFontClass))
#define PANGO_IS_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT))
#define PANGO_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT, PangoFontClass))
typedef struct _PangoFontClass PangoFontClass;
/**
* PangoFont:
*
* The #PangoFont structure is used to represent
* a font in a rendering-system-independent matter.
* To create an implementation of a #PangoFont,
* the rendering-system specific code should allocate
* a larger structure that contains a nested
* #PangoFont, fill in the <structfield>klass</structfield> member of
* the nested #PangoFont with a pointer to
* a appropriate #PangoFontClass, then call
* pango_font_init() on the structure.
*
* The #PangoFont structure contains one member
* which the implementation fills in.
*/
struct _PangoFont
{
GObject parent_instance;
};
struct _PangoFontClass
{
GObjectClass parent_class;
/*< public >*/
PangoFontDescription *(*describe) (PangoFont *font);
PangoCoverage * (*get_coverage) (PangoFont *font,
PangoLanguage *language);
PangoEngineShape * (*find_shaper) (PangoFont *font,
PangoLanguage *language,
guint32 ch);
void (*get_glyph_extents) (PangoFont *font,
PangoGlyph glyph,
PangoRectangle *ink_rect,
PangoRectangle *logical_rect);
PangoFontMetrics * (*get_metrics) (PangoFont *font,
PangoLanguage *language);
PangoFontMap * (*get_font_map) (PangoFont *font);
PangoFontDescription *(*describe_absolute) (PangoFont *font);
/*< private >*/
/* Padding for future expansion */
void (*_pango_reserved1) (void);
void (*_pango_reserved2) (void);
};
/* used for very rare and miserable situtations that we cannot even
* draw a hexbox
*/
#define PANGO_UNKNOWN_GLYPH_WIDTH 10
#define PANGO_UNKNOWN_GLYPH_HEIGHT 14
G_END_DECLS
#endif /* __PANGO_FONT_PRIVATE_H__ */
|
