libjava/jni/gtk-peer/gdkfont.h

   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., 59 Temple Place, Suite 330, Boston, MA
  22    02111-1307 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 #include <pango/pango.h>
  44 #include <pango/pango-context.h>
  45 #include <pango/pango-fontmap.h>
  46 #include <pango/pangoft2.h>
  47
  48 extern struct state_table *native_font_state_table;
  49 extern struct state_table *native_glyphvector_state_table;
  50 extern struct state_table *native_text_layout_state_table;
  51
  52 #define NSA_FONT_INIT(env, clazz) \
  53   native_font_state_table = init_state_table (env, clazz)
  54
  55 #define NSA_GET_FONT_PTR(env, obj) \
  56   get_state (env, obj, native_font_state_table)
  57
  58 #define NSA_SET_FONT_PTR(env, obj, ptr) \
  59   set_state (env, obj, native_font_state_table, (void *)ptr)
  60
  61 #define NSA_DEL_FONT_PTR(env, obj) \
  62   remove_state_slot (env, obj, native_font_state_table)
  63
  64
  65 #define NSA_GV_INIT(env, clazz) \
  66   native_glyphvector_state_table = init_state_table (env, clazz)
  67
  68 #define NSA_GET_GV_PTR(env, obj) \
  69   get_state (env, obj, native_glyphvector_state_table)
  70
  71 #define NSA_SET_GV_PTR(env, obj, ptr) \
  72   set_state (env, obj, native_glyphvector_state_table, (void *)ptr)
  73
  74 #define NSA_DEL_GV_PTR(env, obj) \
  75   remove_state_slot (env, obj, native_glyphvector_state_table)
  76
  77
  78 #define NSA_TEXT_LAYOUT_INIT(env, clazz) \
  79   native_text_layout_state_table = init_state_table (env, clazz)
  80
  81 #define NSA_GET_TEXT_LAYOUT_PTR(env, obj) \
  82   get_state (env, obj, native_text_layout_state_table)
  83
  84 #define NSA_SET_TEXT_LAYOUT_PTR(env, obj, ptr) \
  85   set_state (env, obj, native_text_layout_state_table, (void *)ptr)
  86
  87 #define NSA_DEL_TEXT_LAYOUT_PTR(env, obj) \
  88   remove_state_slot (env, obj, native_text_layout_state_table)
  89
  90 #define FONT_METRICS_ASCENT      0
  91 #define FONT_METRICS_MAX_ASCENT  1
  92 #define FONT_METRICS_DESCENT     2
  93 #define FONT_METRICS_MAX_DESCENT 3
  94 #define FONT_METRICS_MAX_ADVANCE 4
  95 #define NUM_FONT_METRICS 5
  96
  97 #define TEXT_METRICS_X_BEARING 0
  98 #define TEXT_METRICS_Y_BEARING 1
  99 #define TEXT_METRICS_WIDTH     2
 100 #define TEXT_METRICS_HEIGHT    3
 101 #define TEXT_METRICS_X_ADVANCE 4
 102 #define TEXT_METRICS_Y_ADVANCE 5
 103 #define NUM_TEXT_METRICS 6
 104
 105 #define NUM_GLYPH_METRICS 10
 106
 107 #define GLYPH_LOG_X(i)      (NUM_GLYPH_METRICS * (i)    )
 108 #define GLYPH_LOG_Y(i)      (NUM_GLYPH_METRICS * (i) + 1)
 109 #define GLYPH_LOG_WIDTH(i)  (NUM_GLYPH_METRICS * (i) + 2)
 110 #define GLYPH_LOG_HEIGHT(i) (NUM_GLYPH_METRICS * (i) + 3)
 111
 112 #define GLYPH_INK_X(i)      (NUM_GLYPH_METRICS * (i) + 4)
 113 #define GLYPH_INK_Y(i)      (NUM_GLYPH_METRICS * (i) + 5)
 114 #define GLYPH_INK_WIDTH(i)  (NUM_GLYPH_METRICS * (i) + 6)
 115 #define GLYPH_INK_HEIGHT(i) (NUM_GLYPH_METRICS * (i) + 7)
 116
 117 #define GLYPH_POS_X(i)      (NUM_GLYPH_METRICS * (i) + 8)
 118 #define GLYPH_POS_Y(i)      (NUM_GLYPH_METRICS * (i) + 9)
 119
 120 struct peerfont
 121 {
 122   PangoFont *font;
 123   PangoFontDescription *desc;
 124   PangoContext *ctx;
 125   PangoLayout *layout;
 126   /*
 127    * The GdkGraphics2D (using cairo) may store a pointer to a
 128    * cairo_font_t here; since we want to work equally well with
 129    * the GdkGraphics class (using GDK) we do not explicitly mention
 130    * cairo types here; it is up to the higher level driver routine
 131    * in GdkClasspathFontPeer.java to decide which backend functions
 132    * to invoke.
 133    */
 134   void *graphics_resource;
 135 };
 136
 137 struct textlayout
 138 {
 139   PangoLayout *pango_layout;
 140 };
 141
 142 #endif /* __GDKFONT_H__ */