diff options
Diffstat (limited to 'plugins/gtkui/gtkglext-gtk2/gdk/x11/gdkglfont-x11.c')
| -rw-r--r-- | plugins/gtkui/gtkglext-gtk2/gdk/x11/gdkglfont-x11.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/plugins/gtkui/gtkglext-gtk2/gdk/x11/gdkglfont-x11.c b/plugins/gtkui/gtkglext-gtk2/gdk/x11/gdkglfont-x11.c new file mode 100644 index 00000000..d4ec881f --- /dev/null +++ b/plugins/gtkui/gtkglext-gtk2/gdk/x11/gdkglfont-x11.c @@ -0,0 +1,196 @@ +/* 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 */ |