summaryrefslogtreecommitdiff
path: root/pango/pangocairo-coretextfontmap.c
blob: 5054b7a8c82a071a6e0f37a3d04cdd51f71f697f (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
/* Pango
 * pangocairo-coretextfontmap.c
 *
 * Copyright (C) 2005 Imendio AB
 * Copyright (C) 2010  Kristian Rietveld  <kris@gtk.org>
 *
 * 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.
 */

#include "config.h"

#include "pangocoretext-private.h"
#include "pangocairo.h"
#include "pangocairo-private.h"
#include "pangocairo-coretext.h"

typedef struct _PangoCairoCoreTextFontMapClass PangoCairoCoreTextFontMapClass;

struct _PangoCairoCoreTextFontMapClass
{
  PangoCoreTextFontMapClass parent_class;
};

static guint
pango_cairo_core_text_font_map_get_serial (PangoFontMap *fontmap)
{
  PangoCairoCoreTextFontMap *cafontmap = PANGO_CAIRO_CORE_TEXT_FONT_MAP (fontmap);

  return cafontmap->serial;
}

static void
pango_cairo_core_text_font_map_changed (PangoFontMap *fontmap)
{
  PangoCairoCoreTextFontMap *cafontmap = PANGO_CAIRO_CORE_TEXT_FONT_MAP (fontmap);

  cafontmap->serial++;
  if (cafontmap->serial == 0)
    cafontmap->serial++;
}

static void
pango_cairo_core_text_font_map_set_resolution (PangoCairoFontMap *cfontmap,
                                               double             dpi)
{
  PangoCairoCoreTextFontMap *cafontmap = PANGO_CAIRO_CORE_TEXT_FONT_MAP (cfontmap);

  cafontmap->serial++;
  if (cafontmap->serial == 0)
    cafontmap->serial++;
  cafontmap->dpi = dpi;
}

static double
pango_cairo_core_text_font_map_get_resolution_cairo (PangoCairoFontMap *cfontmap)
{
  PangoCairoCoreTextFontMap *cafontmap = PANGO_CAIRO_CORE_TEXT_FONT_MAP (cfontmap);

  return cafontmap->dpi;
}

static cairo_font_type_t
pango_cairo_core_text_font_map_get_font_type (PangoCairoFontMap *cfontmap)
{
  return CAIRO_FONT_TYPE_QUARTZ;
}

static void
cairo_font_map_iface_init (PangoCairoFontMapIface *iface)
{
  iface->set_resolution = pango_cairo_core_text_font_map_set_resolution;
  iface->get_resolution = pango_cairo_core_text_font_map_get_resolution_cairo;
  iface->get_font_type  = pango_cairo_core_text_font_map_get_font_type;
}

G_DEFINE_TYPE_WITH_CODE (PangoCairoCoreTextFontMap, pango_cairo_core_text_font_map, PANGO_TYPE_CORE_TEXT_FONT_MAP,
    { G_IMPLEMENT_INTERFACE (PANGO_TYPE_CAIRO_FONT_MAP, cairo_font_map_iface_init) });


static PangoCoreTextFont *
pango_cairo_core_text_font_map_create_font (PangoCoreTextFontMap       *fontmap,
                                            PangoCoreTextFontKey       *key)

{
  return _pango_cairo_core_text_font_new (PANGO_CAIRO_CORE_TEXT_FONT_MAP (fontmap),
                                          key);
}

static void
pango_cairo_core_text_font_map_finalize (GObject *object)
{
  G_OBJECT_CLASS (pango_cairo_core_text_font_map_parent_class)->finalize (object);
}

static double
pango_cairo_core_text_font_map_get_resolution_core_text (PangoCoreTextFontMap *ctfontmap,
                                                         PangoContext         *context)
{
  PangoCairoCoreTextFontMap *cafontmap = PANGO_CAIRO_CORE_TEXT_FONT_MAP (ctfontmap);
  double dpi;

  if (context)
    {
      dpi = pango_cairo_context_get_resolution (context);

      if (dpi <= 0)
        dpi = cafontmap->dpi;
    }
  else
    dpi = cafontmap->dpi;

  return dpi;
}

static gconstpointer
pango_cairo_core_text_font_map_context_key_get (PangoCoreTextFontMap *fontmap G_GNUC_UNUSED,
                                                PangoContext         *context)
{
  return _pango_cairo_context_get_merged_font_options (context);
}

static gpointer
pango_cairo_core_text_font_map_context_key_copy (PangoCoreTextFontMap *fontmap G_GNUC_UNUSED,
                                                 gconstpointer         key)
{
  return cairo_font_options_copy (key);
}

static void
pango_cairo_core_text_font_map_context_key_free (PangoCoreTextFontMap *fontmap G_GNUC_UNUSED,
                                                 gpointer              key)
{
  cairo_font_options_destroy (key);
}

static guint32
pango_cairo_core_text_font_map_context_key_hash (PangoCoreTextFontMap *fontmap G_GNUC_UNUSED,
                                                 gconstpointer         key)
{
  return (guint32)cairo_font_options_hash (key);
}

static gboolean
pango_cairo_core_text_font_map_context_key_equal (PangoCoreTextFontMap *fontmap G_GNUC_UNUSED,
                                                  gconstpointer         key_a,
                                                  gconstpointer         key_b)
{
  return cairo_font_options_equal (key_a, key_b);
}

static void
pango_cairo_core_text_font_map_class_init (PangoCairoCoreTextFontMapClass *class)
{
  PangoCoreTextFontMapClass *ctfontmapclass = (PangoCoreTextFontMapClass *)class;
  PangoFontMapClass *fontmap_class = PANGO_FONT_MAP_CLASS (class);
  GObjectClass *object_class = (GObjectClass *)class;

  object_class->finalize = pango_cairo_core_text_font_map_finalize;

  fontmap_class->get_serial = pango_cairo_core_text_font_map_get_serial;
  fontmap_class->changed = pango_cairo_core_text_font_map_changed;

  ctfontmapclass->get_resolution = pango_cairo_core_text_font_map_get_resolution_core_text;
  ctfontmapclass->create_font = pango_cairo_core_text_font_map_create_font;
  ctfontmapclass->context_key_get = pango_cairo_core_text_font_map_context_key_get;
  ctfontmapclass->context_key_copy = pango_cairo_core_text_font_map_context_key_copy;
  ctfontmapclass->context_key_free = pango_cairo_core_text_font_map_context_key_free;
  ctfontmapclass->context_key_hash = pango_cairo_core_text_font_map_context_key_hash;
  ctfontmapclass->context_key_equal = pango_cairo_core_text_font_map_context_key_equal;
}

static void
pango_cairo_core_text_font_map_init (PangoCairoCoreTextFontMap *cafontmap)
{
  cafontmap->serial = 1;
  cafontmap->dpi = 96.;
}