1 #ifndef __GDKFONT_H__
2 #define __GDKFONT_H__
3 
4 /* gdkfont.h -- Some global stuff related to fonts and glyphs
5    Copyright (C) 2003 Free Software Foundation, Inc.
6 
7    This file is part of GNU Classpath.
8 
9    GNU Classpath is free software; you can redistribute it and/or modify
10    it under the terms of the GNU General Public License as published by
11    the Free Software Foundation; either version 2, or (at your option)
12    any later version.
13 
14    GNU Classpath is distributed in the hope that it will be useful, but
15    WITHOUT ANY WARRANTY; without even the implied warranty of
16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17    General Public License for more details.
18 
19    You should have received a copy of the GNU General Public License
20    along with GNU Classpath; see the file COPYING.  If not, write to the
21    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22    02110-1301 USA.
23 
24    Linking this library statically or dynamically with other modules is
25    making a combined work based on this library.  Thus, the terms and
26    conditions of the GNU General Public License cover the whole
27    combination.
28 
29    As a special exception, the copyright holders of this library give you
30    permission to link this library with independent modules to produce an
31    executable, regardless of the license terms of these independent
32    modules, and to copy and distribute the resulting executable under
33    terms of your choice, provided that you also meet, for each linked
34    independent module, the terms and conditions of the license of that
35    module.  An independent module is a module which is not derived from
36    or based on this library.  If you modify this library, you may extend
37    this exception to your version of the library, but you are not
38    obligated to do so.  If you do not wish to do so, delete this
39    exception statement from your version. */
40 
41 #include "gtkpeer.h"
42 
43 #define PANGO_ENABLE_ENGINE
44 #include <pango/pango.h>
45 #include <pango/pango-context.h>
46 #include <pango/pango-fontmap.h>
47 #include <pango/pangoft2.h>
48 
49 #define FONT_METRICS_ASCENT      0
50 #define FONT_METRICS_MAX_ASCENT  1
51 #define FONT_METRICS_DESCENT     2
52 #define FONT_METRICS_MAX_DESCENT 3
53 #define FONT_METRICS_MAX_ADVANCE 4
54 #define FONT_METRICS_HEIGHT 5
55 #define FONT_METRICS_UNDERLINE_OFFSET 6
56 #define FONT_METRICS_UNDERLINE_THICKNESS 7
57 #define NUM_FONT_METRICS 8
58 
59 #define TEXT_METRICS_X_BEARING 0
60 #define TEXT_METRICS_Y_BEARING 1
61 #define TEXT_METRICS_WIDTH     2
62 #define TEXT_METRICS_HEIGHT    3
63 #define TEXT_METRICS_X_ADVANCE 4
64 #define TEXT_METRICS_Y_ADVANCE 5
65 #define NUM_TEXT_METRICS 6
66 
67 #define NUM_GLYPH_METRICS 10
68 
69 #define GLYPH_LOG_X(i)      (NUM_GLYPH_METRICS * (i)    )
70 #define GLYPH_LOG_Y(i)      (NUM_GLYPH_METRICS * (i) + 1)
71 #define GLYPH_LOG_WIDTH(i)  (NUM_GLYPH_METRICS * (i) + 2)
72 #define GLYPH_LOG_HEIGHT(i) (NUM_GLYPH_METRICS * (i) + 3)
73 
74 #define GLYPH_INK_X(i)      (NUM_GLYPH_METRICS * (i) + 4)
75 #define GLYPH_INK_Y(i)      (NUM_GLYPH_METRICS * (i) + 5)
76 #define GLYPH_INK_WIDTH(i)  (NUM_GLYPH_METRICS * (i) + 6)
77 #define GLYPH_INK_HEIGHT(i) (NUM_GLYPH_METRICS * (i) + 7)
78 
79 #define GLYPH_POS_X(i)      (NUM_GLYPH_METRICS * (i) + 8)
80 #define GLYPH_POS_Y(i)      (NUM_GLYPH_METRICS * (i) + 9)
81 
82 struct peerfont
83 {
84   PangoFont *font;
85   PangoFontset *set;
86   PangoFontDescription *desc;
87   PangoContext *ctx;
88   PangoLayout *layout;
89   /*
90    * The GdkGraphics2D (using cairo) may store a pointer to a
91    * cairo_font_t here; since we want to work equally well with
92    * the GdkGraphics class (using GDK) we do not explicitly mention
93    * cairo types here; it is up to the higher level driver routine
94    * in GdkClasspathFontPeer.java to decide which backend functions
95    * to invoke.
96    */
97   void *graphics_resource;
98 };
99 
100 struct textlayout
101 {
102   PangoLayout *pango_layout;
103 };
104 
105 #endif /* __GDKFONT_H__ */
106