1/* Pango
2 * pangofc-font.h: Base fontmap type for fontconfig-based backends
3 *
4 * Copyright (C) 2003 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#ifndef __PANGO_FC_FONT_PRIVATE_H__
23#define __PANGO_FC_FONT_PRIVATE_H__
24
25#include <pango/pangofc-font.h>
26#include <pango/pango-font-private.h>
27
28G_BEGIN_DECLS
29
30/**
31 * PANGO_RENDER_TYPE_FC:
32 *
33 * A string constant used to identify shape engines that work
34 * with the fontconfig based backends. See the @engine_type field
35 * of `PangoEngineInfo`.
36 **/
37#define PANGO_RENDER_TYPE_FC "PangoRenderFc"
38
39#define PANGO_FC_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FC_FONT, PangoFcFontClass))
40#define PANGO_IS_FC_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FC_FONT))
41#define PANGO_FC_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FC_FONT, PangoFcFontClass))
42
43/**
44 * PangoFcFontClass:
45 * @lock_face: Returns the FT_Face of the font and increases
46 * the reference count for the face by one.
47 * @unlock_face: Decreases the reference count for the
48 * FT_Face of the font by one. When the count is zero,
49 * the `PangoFcFont` subclass is allowed to free the
50 * FT_Face.
51 * @has_char: Return %TRUE if the the font contains a glyph
52 * corresponding to the specified character.
53 * @get_glyph: Gets the glyph that corresponds to the given
54 * Unicode character.
55 * @get_unknown_glyph: (nullable): Gets the glyph that
56 * should be used to display an unknown-glyph indication
57 * for the specified Unicode character. May be %NULL.
58 * @shutdown: (nullable): Performs any font-specific
59 * shutdown code that needs to be done when
60 * pango_fc_font_map_shutdown is called. May be %NULL.
61 *
62 * Class structure for `PangoFcFont`.
63 **/
64struct _PangoFcFontClass
65{
66 /*< private >*/
67 PangoFontClass parent_class;
68
69 /*< public >*/
70 FT_Face (*lock_face) (PangoFcFont *font);
71 void (*unlock_face) (PangoFcFont *font);
72 gboolean (*has_char) (PangoFcFont *font,
73 gunichar wc);
74 guint (*get_glyph) (PangoFcFont *font,
75 gunichar wc);
76 PangoGlyph (*get_unknown_glyph) (PangoFcFont *font,
77 gunichar wc);
78 void (*shutdown) (PangoFcFont *font);
79 /*< private >*/
80
81 /* Padding for future expansion */
82 void (*_pango_reserved1) (void);
83 void (*_pango_reserved2) (void);
84 void (*_pango_reserved3) (void);
85 void (*_pango_reserved4) (void);
86};
87
88
89G_END_DECLS
90#endif /* __PANGO_FC_FONT_PRIVATE_H__ */
91

source code of gtk/subprojects/pango/pango/pangofc-font-private.h