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--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "config.hh"
  10
  11 #if HAVE_FONTCONFIG
  12
  13 #include <fontconfig/fontconfig.h>
  14 #include <sys/stat.h>
  15
  16 #include "file-path.hh"
  17 #include "international.hh"
  18 #include "main.hh"
  19 #include "warn.hh"
  20
  21
  22 FcConfig *font_config_global = 0;
  23
  24 void
  25 init_fontconfig ()
  26 {
  27   if (be_verbose_global)
  28     message (_ ("Initializing FontConfig..."));
  29
  30   font_config_global = FcInitLoadConfig ();
  31   FcChar8 *cache_file = FcConfigGetCache (font_config_global);
  32
  33 #if 0
  34   // always returns 0 for FC 2.4
  35   if (!cache_file)
  36     programming_error ("Cannot find file for FontConfig cache.");
  37 #endif
  38   /*
  39     This is a terrible kludge, but there is apparently no way for
  40     FontConfig to signal whether it needs to rescan directories.
  41    */
  42   if (cache_file
  43       && !is_file ((char const *)cache_file))
  44     message (_f ("Rebuilding FontConfig cache %s, this may take a while...", cache_file));
  45
  46   vector<string> dirs;
  47
  48   /* Extra trailing slash suddenly breaks fontconfig (fc-cache 2.5.0)
  49      on windows.  */
  50   dirs.push_back (lilypond_datadir + "/fonts/otf");
  51   dirs.push_back (lilypond_datadir + "/fonts/type1");
  52
  53   for (vsize i = 0; i < dirs.size (); i++)
  54     {
  55       string dir = dirs[i];
  56       if (!FcConfigAppFontAddDir (font_config_global, (FcChar8 *)dir.c_str ()))
  57         error (_f ("failed adding font directory: %s", dir.c_str ()));
  58       else if (be_verbose_global)
  59         message (_f ("adding font directory: %s", dir.c_str ()));
  60     }
  61
  62   if (be_verbose_global)
  63     progress_indication ("Building font database.\n");
  64   FcConfigBuildFonts (font_config_global);
  65   FcConfigSetCurrent (font_config_global);
  66   if (be_verbose_global)
  67     progress_indication ("\n");
  68
  69   if (cache_file
  70       && !is_file ((char*)cache_file))
  71     {
  72       /* inhibit future messages. */
  73       FILE *f = fopen ((char*)cache_file, "w");
  74       if (f)
  75         fclose (f);
  76     }
  77
  78 }
  79
  80 #else
  81
  82 void
  83 init_fontconfig ()
  84 {
  85 }
  86
  87 #endif