pango.c.fontset source code

1 /*
2  * Distributed under the Boost Software License, Version 1.0.
3  *    (See accompanying file LICENSE_1_0.txt or copy at
4  *          http://www.boost.org/LICENSE_1_0.txt)
5  */
6 module pango.c.fontset;
7 
8 import pango.c.coverage;
9 import pango.c.types;
10 import pango.c.font;
11 
12 import glib;
13 import gobject;
14 
15 extern (C):
16 
17 /*
18  * PangoFontset
19  */
20 
21 version (Backend) {}
22 else {
23     struct PangoFontset;
24 }
25 
26 pure GType pango_fontset_get_type ();
27 
28 /**
29  * PangoFontsetForeachFunc:
30  * @fontset: a #PangoFontset
31  * @font: a font from @fontset
32  * @user_data: callback data
33  *
34  * A callback function used by pango_fontset_foreach() when enumerating
35  * the fonts in a fontset.
36  *
37  * Returns: if %TRUE, stop iteration and return immediately.
38  *
39  * Since: 1.4
40  **/
41 alias PangoFontsetForeachFunc = gboolean function (PangoFontset  *fontset,
42 					     PangoFont     *font,
43 					     gpointer       user_data);
44 
45 PangoFont *       pango_fontset_get_font    (PangoFontset           *fontset,
46 					     guint                   wc);
47 PangoFontMetrics *pango_fontset_get_metrics (PangoFontset           *fontset);
48 void              pango_fontset_foreach     (PangoFontset           *fontset,
49 					     PangoFontsetForeachFunc func,
50 					     gpointer                data);
51 
52 
53 version (Backend)
54 {
55     /**
56      * PangoFontset:
57      *
58      * A #PangoFontset represents a set of #PangoFont to use
59      * when rendering text. It is the result of resolving a
60      * #PangoFontDescription against a particular #PangoContext.
61      * It has operations for finding the component font for
62      * a particular Unicode character, and for finding a composite
63      * set of metrics for the entire fontset.
64      */
65     struct PangoFontset
66     {
67       GObject parent_instance;
68     };
69 
70     /**
71      * PangoFontsetClass:
72      * @parent_class: parent #GObjectClass.
73      * @get_font: a function to get the font in the fontset that contains the
74      * best glyph for the given Unicode character; see pango_fontset_get_font().
75      * @get_metrics: a function to get overall metric information for the fonts
76      * in the fontset; see pango_fontset_get_metrics().
77      * @get_language: a function to get the language of the fontset.
78      * @foreach: a function to loop over the fonts in the fontset. See
79      * pango_fontset_foreach().
80      *
81      * The #PangoFontsetClass structure holds the virtual functions for
82      * a particular #PangoFontset implementation.
83      */
84     struct PangoFontsetClass
85     {
86       GObjectClass parent_class;
87 
88       /*< public >*/
89 
90       PangoFont *       function     (PangoFontset     *fontset,
91 				         guint             wc) get_font;
92 
93       PangoFontMetrics *function  (PangoFontset     *fontset) get_metrics;
94       PangoLanguage *   function (PangoFontset     *fontset) get_language;
95       void              function      (PangoFontset           *fontset,
96 				         PangoFontsetForeachFunc func,
97 				         gpointer                data) foreach_;
98 
99       /*< private >*/
100 
101       /* Padding for future expansion */
102       void function () _pango_reserved1;
103       void function () _pango_reserved2;
104       void function () _pango_reserved3;
105       void function () _pango_reserved4;
106     };
107 
108     /*
109      * PangoFontsetSimple
110      */
111 
112     struct PangoFontsetSimple;
113     struct PangoFontsetSimpleClass;
114 
115     pure GType pango_fontset_simple_get_type ();
116 
117     PangoFontsetSimple * pango_fontset_simple_new    (PangoLanguage      *language);
118     void                 pango_fontset_simple_append (PangoFontsetSimple *fontset,
119 						      PangoFont          *font);
120     int                  pango_fontset_simple_size   (PangoFontsetSimple *fontset);
121 
122 }