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/* GdkGLExt - OpenGL Extension to GDK
* Copyright (C) 2002-2004 Naofumi Yasufuku
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <string.h>
#include <pango/pangox.h>
#include "gdkglx.h"
#include "gdkglprivate-x11.h"
#include "gdkglfont.h"
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
#include <gdk/gdkdisplay.h>
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
/*
* This code is ripped from gdk/x11/gdkfont-x11.c in GTK+.
*/
static char *
gdk_gl_font_charset_for_locale (void)
{
static char *charset_map[][2] = {
{ "ANSI_X3.4-1968", "iso8859-1" },
{ "US-ASCII", "iso8859-1" },
{ "ISO-8859-1", "iso8859-1" },
{ "ISO-8859-2", "iso8859-2" },
{ "ISO-8859-3", "iso8859-3" },
{ "ISO-8859-4", "iso8859-4" },
{ "ISO-8859-5", "iso8859-5" },
{ "ISO-8859-6", "iso8859-6" },
{ "ISO-8859-7", "iso8859-7" },
{ "ISO-8859-8", "iso8859-8" },
{ "ISO-8859-9", "iso8859-9" },
{ "UTF-8", "iso8859-1" }
};
const char *codeset;
char *result = NULL;
gsize i;
g_get_charset (&codeset);
for (i = 0; i < G_N_ELEMENTS (charset_map); i++)
if (strcmp (charset_map[i][0], codeset) == 0)
{
result = charset_map[i][1];
break;
}
if (result != NULL)
return g_strdup (result);
else
return g_strdup ("iso8859-1");
}
static PangoFont *
gdk_gl_font_use_pango_font_common (PangoFontMap *font_map,
const PangoFontDescription *font_desc,
int first,
int count,
int list_base)
{
PangoFont *font = NULL;
gchar *charset = NULL;
PangoXSubfont subfont_id;
gchar *xlfd = NULL;
PangoXFontCache *font_cache;
XFontStruct *fs;
GDK_GL_NOTE_FUNC_PRIVATE ();
font = pango_font_map_load_font (font_map, NULL, font_desc);
if (font == NULL)
{
g_warning ("cannot load PangoFont");
goto FAIL;
}
charset = gdk_gl_font_charset_for_locale ();
if (!pango_x_find_first_subfont (font, &charset, 1, &subfont_id))
{
g_warning ("cannot find PangoXSubfont");
font = NULL;
goto FAIL;
}
xlfd = pango_x_font_subfont_xlfd (font, subfont_id);
if (xlfd == NULL)
{
g_warning ("cannot get XLFD");
font = NULL;
goto FAIL;
}
font_cache = pango_x_font_map_get_font_cache (font_map);
fs = pango_x_font_cache_load (font_cache, xlfd);
glXUseXFont (fs->fid, first, count, list_base);
pango_x_font_cache_unload (font_cache, fs);
FAIL:
if (charset != NULL)
g_free (charset);
if (xlfd != NULL)
g_free (xlfd);
return font;
}
/**
* gdk_gl_font_use_pango_font:
* @font_desc: a #PangoFontDescription describing the font to use.
* @first: the index of the first glyph to be taken.
* @count: the number of glyphs to be taken.
* @list_base: the index of the first display list to be generated.
*
* Creates bitmap display lists from a #PangoFont.
*
* Return value: the #PangoFont used, or NULL if no font matched.
**/
PangoFont *
gdk_gl_font_use_pango_font (const PangoFontDescription *font_desc,
int first,
int count,
int list_base)
{
PangoFontMap *font_map;
g_return_val_if_fail (font_desc != NULL, NULL);
GDK_GL_NOTE_FUNC ();
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
font_map = pango_x_font_map_for_display (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
#else /* GDKGLEXT_MULTIHEAD_SUPPORT */
font_map = pango_x_font_map_for_display (gdk_x11_get_default_xdisplay ());
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
return gdk_gl_font_use_pango_font_common (font_map, font_desc,
first, count, list_base);
}
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
/**
* gdk_gl_font_use_pango_font_for_display:
* @display: a #GdkDisplay.
* @font_desc: a #PangoFontDescription describing the font to use.
* @first: the index of the first glyph to be taken.
* @count: the number of glyphs to be taken.
* @list_base: the index of the first display list to be generated.
*
* Creates bitmap display lists from a #PangoFont.
*
* Return value: the #PangoFont used, or NULL if no font matched.
**/
PangoFont *
gdk_gl_font_use_pango_font_for_display (GdkDisplay *display,
const PangoFontDescription *font_desc,
int first,
int count,
int list_base)
{
PangoFontMap *font_map;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (font_desc != NULL, NULL);
GDK_GL_NOTE_FUNC ();
font_map = pango_x_font_map_for_display (GDK_DISPLAY_XDISPLAY (display));
return gdk_gl_font_use_pango_font_common (font_map, font_desc,
first, count, list_base);
}
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
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