lily/font-config.cc

   1 /*
   2   font-config.cc -- implement FontConfig related functions
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "config.hh"
  10
  11 #if HAVE_FONTCONFIG
  12
  13 #include <cstdio>
  14 #include <fontconfig/fontconfig.h>
  15 #include <sys/stat.h>
  16
  17 #include "file-path.hh"
  18 #include "international.hh"
  19 #include "main.hh"
  20 #include "warn.hh"
  21
  22
  23 FcConfig *font_config_global = 0;
  24
  25 void
  26 init_fontconfig ()
  27 {
  28   if (be_verbose_global)
  29     message (_ ("Initializing FontConfig..."));
  30
  31   font_config_global = FcInitLoadConfig ();
  32   FcChar8 *cache_file = FcConfigGetCache (font_config_global);
  33
  34 #if 0
  35   // always returns 0 for FC 2.4
  36   if (!cache_file)
  37     programming_error ("Cannot find file for FontConfig cache.");
  38 #endif
  39   /*
  40     This is a terrible kludge, but there is apparently no way for
  41     FontConfig to signal whether it needs to rescan directories.
  42    */
  43   if (cache_file
  44       && !is_file ((char const *)cache_file))
  45     message (_f ("Rebuilding FontConfig cache %s, this may take a while...", cache_file));
  46
  47   vector<string> dirs;
  48
  49   /* Extra trailing slash suddenly breaks fontconfig (fc-cache 2.5.0)
  50      on windows.  */
  51   dirs.push_back (lilypond_datadir + "/fonts/otf");
  52   dirs.push_back (lilypond_datadir + "/fonts/type1");
  53
  54   for (vsize i = 0; i < dirs.size (); i++)
  55     {
  56       string dir = dirs[i];
  57       if (!FcConfigAppFontAddDir (font_config_global, (FcChar8 *)dir.c_str ()))
  58         error (_f ("failed adding font directory: %s", dir.c_str ()));
  59       else if (be_verbose_global)
  60         message (_f ("adding font directory: %s", dir.c_str ()));
  61     }
  62
  63   if (be_verbose_global)
  64     message (_ ("Building font database."));
  65   FcConfigBuildFonts (font_config_global);
  66   FcConfigSetCurrent (font_config_global);
  67   if (be_verbose_global)
  68     message ("\n");
  69
  70   if (cache_file
  71       && !is_file ((char*)cache_file))
  72     {
  73       /* inhibit future messages. */
  74       FILE *f = fopen ((char*)cache_file, "w");
  75       if (f)
  76         fclose (f);
  77     }
  78
  79 }
  80
  81 #else
  82
  83 void
  84 init_fontconfig ()
  85 {
  86 }
  87
  88 #endif