lily/font-config.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond 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
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "config.hh"
  21
  22 #if HAVE_FONTCONFIG
  23
  24 #include <cstdio>
  25 #include <fontconfig/fontconfig.h>
  26 #include <sys/stat.h>
  27
  28 #include "file-path.hh"
  29 #include "international.hh"
  30 #include "main.hh"
  31 #include "warn.hh"
  32
  33
  34 FcConfig *font_config_global = 0;
  35
  36 void
  37 init_fontconfig ()
  38 {
  39   if (be_verbose_global)
  40     message (_ ("Initializing FontConfig..."));
  41
  42   font_config_global = FcInitLoadConfig ();
  43   FcChar8 *cache_file = FcConfigGetCache (font_config_global);
  44
  45 #if 0
  46   // always returns 0 for FC 2.4
  47   if (!cache_file)
  48     programming_error ("Cannot find file for FontConfig cache.");
  49 #endif
  50   /*
  51     This is a terrible kludge, but there is apparently no way for
  52     FontConfig to signal whether it needs to rescan directories.
  53    */
  54   if (cache_file
  55       && !is_file ((char const *)cache_file))
  56     message (_f ("Rebuilding FontConfig cache %s, this may take a while...", cache_file));
  57
  58   vector<string> dirs;
  59
  60   /* Extra trailing slash suddenly breaks fontconfig (fc-cache 2.5.0)
  61      on windows.  */
  62   dirs.push_back (lilypond_datadir + "/fonts/otf");
  63
  64   for (vsize i = 0; i < dirs.size (); i++)
  65     {
  66       string dir = dirs[i];
  67       if (!FcConfigAppFontAddDir (font_config_global, (FcChar8 *)dir.c_str ()))
  68         error (_f ("failed adding font directory: %s", dir.c_str ()));
  69       else if (be_verbose_global)
  70         message (_f ("adding font directory: %s", dir.c_str ()));
  71     }
  72
  73   if (be_verbose_global)
  74     message (_ ("Building font database."));
  75   FcConfigBuildFonts (font_config_global);
  76   FcConfigSetCurrent (font_config_global);
  77   if (be_verbose_global)
  78     message ("\n");
  79
  80   if (cache_file
  81       && !is_file ((char*)cache_file))
  82     {
  83       /* inhibit future messages. */
  84       FILE *f = fopen ((char*)cache_file, "w");
  85       if (f)
  86         fclose (f);
  87     }
  88
  89 }
  90
  91 #else
  92
  93 void
  94 init_fontconfig ()
  95 {
  96 }
  97
  98 #endif