summaryrefslogtreecommitdiff
path: root/pango/pangowin32-private.h
blob: 9f3582309a70cbf04583350a304fdb628e67b242 (plain)
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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
/* Pango
 * pangowin32-private.h:
 *
 * Copyright (C) 1999 Red Hat Software
 * Copyright (C) 2000-2002 Tor Lillqvist
 * Copyright (C) 2001 Alexander Larsson
 *
 * 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 __PANGOWIN32_PRIVATE_H__
#define __PANGOWIN32_PRIVATE_H__

/* Define if you want the possibility to get copious debugging output.
 * (You still need to set the PANGO_WIN32_DEBUG environment variable
 * to get it.)
 */
#define PANGO_WIN32_DEBUGGING 1

#ifdef PANGO_WIN32_DEBUGGING
#ifdef __GNUC__
#define PING(printlist)					\
(_pango_win32_debug ?					\
 (g_print ("%s:%d ", __PRETTY_FUNCTION__, __LINE__),	\
  g_print printlist,					\
  g_print ("\n"),					\
  0) :							\
 0)
#else
#define PING(printlist)					\
(_pango_win32_debug ?					\
 (g_print ("%s:%d ", __FILE__, __LINE__),		\
  g_print printlist,					\
  g_print ("\n"),					\
  0) :							\
 0)
#endif
#else  /* !PANGO_WIN32_DEBUGGING */
#define PING(printlist)
#endif

#include <pango/pango-modules.h>
#include <pango/pangowin32.h>

typedef enum
  {
    PANGO_WIN32_COVERAGE_UNSPEC,
    PANGO_WIN32_COVERAGE_ZH_TW,
    PANGO_WIN32_COVERAGE_ZH_CN,
    PANGO_WIN32_COVERAGE_JA,
    PANGO_WIN32_COVERAGE_KO,
    PANGO_WIN32_COVERAGE_VI,
    PANGO_WIN32_N_COVERAGES
  } PangoWin32CoverageLanguageClass;

#define PANGO_TYPE_WIN32_FONT_MAP             (_pango_win32_font_map_get_type ())
#define PANGO_WIN32_FONT_MAP(object)          (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_WIN32_FONT_MAP, PangoWin32FontMap))
#define PANGO_WIN32_IS_FONT_MAP(object)       (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_WIN32_FONT_MAP))
#define PANGO_WIN32_FONT_MAP_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_WIN32_FONT_MAP, PangoWin32FontMapClass))
#define PANGO_IS_WIN32_FONT_MAP_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_WIN32_FONT_MAP))
#define PANGO_WIN32_FONT_MAP_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_WIN32_FONT_MAP, PangoWin32FontMapClass))

#define PANGO_TYPE_WIN32_FONT            (_pango_win32_font_get_type ())
#define PANGO_WIN32_FONT(object)         (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_WIN32_FONT, PangoWin32Font))
#define PANGO_WIN32_FONT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_WIN32_FONT, PangoWin32FontClass))
#define PANGO_WIN32_IS_FONT(object)      (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_WIN32_FONT))
#define PANGO_WIN32_IS_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_WIN32_FONT))
#define PANGO_WIN32_FONT_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_WIN32_FONT, PangoWin32FontClass))

typedef struct _PangoWin32FontMap      PangoWin32FontMap;
typedef struct _PangoWin32FontMapClass PangoWin32FontMapClass;
typedef struct _PangoWin32Font         PangoWin32Font;
typedef struct _PangoWin32FontClass    PangoWin32FontClass;
typedef struct _PangoWin32Face         PangoWin32Face;
typedef struct _PangoWin32GlyphInfo    PangoWin32GlyphInfo;
typedef struct _PangoWin32MetricsInfo  PangoWin32MetricsInfo;

struct _PangoWin32FontMap
{
  PangoFontMap parent_instance;

  PangoWin32FontCache *font_cache;
  GQueue *freed_fonts;

  /* Map Pango family names to PangoWin32Family structs */
  GHashTable *families;

  /* Map LOGFONTWs (taking into account only the lfFaceName, lfItalic
   * and lfWeight fields) to LOGFONTWs corresponding to actual fonts
   * installed.
   */
  GHashTable *fonts;

  double resolution;		/* (points / pixel) * PANGO_SCALE */
};

struct _PangoWin32FontMapClass
{
  PangoFontMapClass parent_class;

  PangoFont *(*find_font) (PangoWin32FontMap          *fontmap,
			   PangoContext               *context,
			   PangoWin32Face             *face,
			   const PangoFontDescription *desc);

};

struct _PangoWin32Font
{
  PangoFont font;

  LOGFONTW logfontw;
  int size;

  GSList *metrics_by_lang;

  PangoFontMap *fontmap;

  /* Written by pango_win32_get_hfont: */
  HFONT hfont;
  gint tm_ascent;
  gint tm_descent;
  gint tm_overhang;

  PangoWin32Face *win32face;

  /* If TRUE, font is in cache of recently unused fonts and not otherwise
   * in use.
   */
  gboolean in_cache;
  GHashTable *glyph_info;
};

struct _PangoWin32FontClass
{
  PangoFontClass parent_class;

  gboolean (*select_font)        (PangoFont *font,
				  HDC        hdc);
  void     (*done_font)          (PangoFont *font);
  double   (*get_metrics_factor) (PangoFont *font);
};

struct _PangoWin32Face
{
  PangoFontFace parent_instance;

  LOGFONTW logfontw;
  PangoFontDescription *description;
  PangoCoverage *coverages[PANGO_WIN32_N_COVERAGES];
  char *face_name;
  gboolean is_synthetic;

  gboolean has_cmap;
  guint16 cmap_format;
  gpointer cmap;

  GSList *cached_fonts;
};

struct _PangoWin32GlyphInfo
{
  PangoRectangle logical_rect;
  PangoRectangle ink_rect;
};

struct _PangoWin32MetricsInfo
{
  const char *sample_str;
  PangoFontMetrics *metrics;
};

/* TrueType defines: */

#define MAKE_TT_TABLE_NAME(c1, c2, c3, c4) \
   (((guint32)c4) << 24 | ((guint32)c3) << 16 | ((guint32)c2) << 8 | ((guint32)c1))

#define CMAP (MAKE_TT_TABLE_NAME('c','m','a','p'))
#define CMAP_HEADER_SIZE 4

#define NAME (MAKE_TT_TABLE_NAME('n','a','m','e'))
#define NAME_HEADER_SIZE 6

#define ENCODING_TABLE_SIZE 8

#define APPLE_UNICODE_PLATFORM_ID 0
#define MACINTOSH_PLATFORM_ID 1
#define ISO_PLATFORM_ID 2
#define MICROSOFT_PLATFORM_ID 3

#define SYMBOL_ENCODING_ID 0
#define UNICODE_ENCODING_ID 1
#define UCS4_ENCODING_ID 10

/* All the below structs must be packed! */

struct cmap_encoding_subtable
{
  guint16 platform_id;
  guint16 encoding_id;
  guint32 offset;
};

struct format_4_cmap
{
  guint16 format;
  guint16 length;
  guint16 language;
  guint16 seg_count_x_2;
  guint16 search_range;
  guint16 entry_selector;
  guint16 range_shift;

  guint16 reserved;

  guint16 arrays[1];
};

struct format_12_cmap
{
  guint16 format;
  guint16 reserved;
  guint32 length;
  guint32 language;
  guint32 count;

  guint32 groups[1];
};

struct name_header
{
  guint16 format_selector;
  guint16 num_records;
  guint16 string_storage_offset;
};

struct name_record
{
  guint16 platform_id;
  guint16 encoding_id;
  guint16 language_id;
  guint16 name_id;
  guint16 string_length;
  guint16 string_offset;
};

GType           _pango_win32_font_get_type          (void) G_GNUC_CONST;

void            _pango_win32_make_matching_logfontw (PangoFontMap   *fontmap,
						     const LOGFONTW *lfp,
						     int             size,
						     LOGFONTW       *out);

GType           _pango_win32_font_map_get_type      (void) G_GNUC_CONST;

void            _pango_win32_fontmap_cache_remove   (PangoFontMap   *fontmap,
						     PangoWin32Font *xfont);

gboolean	_pango_win32_get_name_header	    (HDC                 hdc,
						     struct name_header *header);
gboolean	_pango_win32_get_name_record        (HDC                 hdc,
						     gint                i,
						     struct name_record *record);

extern HDC _pango_win32_hdc;
extern OSVERSIONINFO _pango_win32_os_version_info;
extern gboolean _pango_win32_debug;

#endif /* __PANGOWIN32_PRIVATE_H__ */