1 | /* Pango |
2 | * pango-fontset-simple.c: |
3 | * |
4 | * Copyright (C) 2001 Red Hat Software |
5 | * |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Library General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * This library is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Library General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Library General Public |
17 | * License along with this library; if not, write to the |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | * Boston, MA 02111-1307, USA. |
20 | */ |
21 | |
22 | #include "config.h" |
23 | |
24 | /* |
25 | * PangoFontset |
26 | */ |
27 | |
28 | #include "pango-types.h" |
29 | #include "pango-font-private.h" |
30 | #include "pango-fontset-simple-private.h" |
31 | #include "pango-impl-utils.h" |
32 | |
33 | /* {{{ PangoFontset implementation */ |
34 | |
35 | #define PANGO_FONTSET_SIMPLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONTSET_SIMPLE, PangoFontsetSimpleClass)) |
36 | #define PANGO_IS_FONTSET_SIMPLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONTSET_SIMPLE)) |
37 | #define PANGO_FONTSET_SIMPLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONTSET_SIMPLE, PangoFontsetSimpleClass)) |
38 | |
39 | |
40 | G_DEFINE_TYPE (PangoFontsetSimple, pango_fontset_simple, PANGO_TYPE_FONTSET); |
41 | |
42 | static void |
43 | pango_fontset_simple_init (PangoFontsetSimple *fontset) |
44 | { |
45 | fontset->fonts = g_ptr_array_new_with_free_func (element_free_func: g_object_unref); |
46 | fontset->language = NULL; |
47 | } |
48 | |
49 | static void |
50 | pango_fontset_simple_finalize (GObject *object) |
51 | { |
52 | PangoFontsetSimple *fontset = PANGO_FONTSET_SIMPLE (object); |
53 | |
54 | g_ptr_array_free (array: fontset->fonts, TRUE); |
55 | |
56 | G_OBJECT_CLASS (pango_fontset_simple_parent_class)->finalize (object); |
57 | } |
58 | |
59 | static PangoFont * |
60 | pango_fontset_simple_get_font (PangoFontset *fontset, |
61 | guint wc) |
62 | { |
63 | PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); |
64 | unsigned int i; |
65 | |
66 | for (i = 0; i < simple->fonts->len; i++) |
67 | { |
68 | PangoFont *font = g_ptr_array_index (simple->fonts, i); |
69 | |
70 | if (pango_font_has_char (font, wc)) |
71 | return g_object_ref (font); |
72 | } |
73 | |
74 | return NULL; |
75 | } |
76 | |
77 | static PangoFontMetrics * |
78 | pango_fontset_simple_get_metrics (PangoFontset *fontset) |
79 | { |
80 | PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); |
81 | |
82 | if (simple->fonts->len == 1) |
83 | { |
84 | PangoFont *font = g_ptr_array_index (simple->fonts, 0); |
85 | |
86 | return pango_font_get_metrics (font, language: simple->language); |
87 | } |
88 | |
89 | return PANGO_FONTSET_CLASS (pango_fontset_simple_parent_class)->get_metrics (fontset); |
90 | } |
91 | |
92 | static PangoLanguage * |
93 | pango_fontset_simple_get_language (PangoFontset *fontset) |
94 | { |
95 | PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); |
96 | |
97 | return simple->language; |
98 | } |
99 | |
100 | static void |
101 | pango_fontset_simple_foreach (PangoFontset *fontset, |
102 | PangoFontsetForeachFunc func, |
103 | gpointer data) |
104 | { |
105 | PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); |
106 | unsigned int i; |
107 | |
108 | for (i = 0; i < simple->fonts->len; i++) |
109 | { |
110 | PangoFont *font = g_ptr_array_index (simple->fonts, i); |
111 | |
112 | if ((*func) (fontset, font, data)) |
113 | return; |
114 | } |
115 | } |
116 | |
117 | static void |
118 | pango_fontset_simple_class_init (PangoFontsetSimpleClass *class) |
119 | { |
120 | GObjectClass *object_class = G_OBJECT_CLASS (class); |
121 | PangoFontsetClass *fontset_class = PANGO_FONTSET_CLASS (class); |
122 | |
123 | object_class->finalize = pango_fontset_simple_finalize; |
124 | |
125 | fontset_class->get_font = pango_fontset_simple_get_font; |
126 | fontset_class->get_metrics = pango_fontset_simple_get_metrics; |
127 | fontset_class->get_language = pango_fontset_simple_get_language; |
128 | fontset_class->foreach = pango_fontset_simple_foreach; |
129 | } |
130 | |
131 | /* }}} */ |
132 | /* {{{ Public API */ |
133 | |
134 | /** |
135 | * pango_fontset_simple_new: |
136 | * @language: a `PangoLanguage` tag |
137 | * |
138 | * Creates a new `PangoFontsetSimple` for the given language. |
139 | * |
140 | * Return value: the newly allocated `PangoFontsetSimple` |
141 | */ |
142 | PangoFontsetSimple * |
143 | pango_fontset_simple_new (PangoLanguage *language) |
144 | { |
145 | PangoFontsetSimple *fontset; |
146 | |
147 | fontset = g_object_new (PANGO_TYPE_FONTSET_SIMPLE, NULL); |
148 | fontset->language = language; |
149 | |
150 | return fontset; |
151 | } |
152 | |
153 | /** |
154 | * pango_fontset_simple_append: |
155 | * @fontset: a `PangoFontsetSimple`. |
156 | * @font: (transfer full): a `PangoFont`. |
157 | * |
158 | * Adds a font to the fontset. |
159 | * |
160 | * The fontset takes ownership of @font. |
161 | */ |
162 | void |
163 | pango_fontset_simple_append (PangoFontsetSimple *fontset, |
164 | PangoFont *font) |
165 | { |
166 | g_ptr_array_add (array: fontset->fonts, data: font); |
167 | } |
168 | |
169 | /** |
170 | * pango_fontset_simple_size: |
171 | * @fontset: a `PangoFontsetSimple`. |
172 | * |
173 | * Returns the number of fonts in the fontset. |
174 | * |
175 | * Return value: the size of @fontset |
176 | */ |
177 | int |
178 | pango_fontset_simple_size (PangoFontsetSimple *fontset) |
179 | { |
180 | return fontset->fonts->len; |
181 | } |
182 | |
183 | /* }}} */ |
184 | |
185 | /* vim:set foldmethod=marker expandtab: */ |
186 | |