src/fcdir.c

   1 /*
   2  * $RCSId: xc/lib/fontconfig/src/fcdir.c,v 1.9 2002/08/31 22:17:32 keithp Exp $
   3  *
   4  * Copyright © 2000 Keith Packard
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and its
   7  * documentation for any purpose is hereby granted without fee, provided that
   8  * the above copyright notice appear in all copies and that both that
   9  * copyright notice and this permission notice appear in supporting
  10  * documentation, and that the name of Keith Packard not be used in
  11  * advertising or publicity pertaining to distribution of the software without
  12  * specific, written prior permission.  Keith Packard makes no
  13  * representations about the suitability of this software for any purpose.  It
  14  * is provided "as is" without express or implied warranty.
  15  *
  16  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  18  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  19  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  20  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  21  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  22  * PERFORMANCE OF THIS SOFTWARE.
  23  */
  24
  25 #include "fcint.h"
  26 #include <dirent.h>
  27
  28 FcBool
  29 FcFileIsDir (const FcChar8 *file)
  30 {
  31     struct stat     statb;
  32
  33     if (stat ((const char *) file, &statb) != 0)
  34         return FcFalse;
  35     return S_ISDIR(statb.st_mode);
  36 }
  37
  38 FcBool
  39 FcFileScanConfig (FcFontSet     *set,
  40                   FcStrSet      *dirs,
  41                   FcGlobalCache *cache,
  42                   FcBlanks      *blanks,
  43                   const FcChar8 *file,
  44                   FcBool        force,
  45                   FcConfig      *config)
  46 {
  47     int                 id;
  48     FcPattern           *font;
  49     FcBool              ret = FcTrue;
  50     int                 count = 0;
  51
  52     if (config && !FcConfigAcceptFilename (config, file))
  53         return FcTrue;
  54
  55     if (FcFileIsDir (file))
  56         return FcStrSetAdd (dirs, file);
  57
  58     id = 0;
  59     do
  60     {
  61         font = 0;
  62         /*
  63          * Nothing in the cache, scan the file
  64          */
  65         if (FcDebug () & FC_DBG_SCAN)
  66         {
  67             printf ("\tScanning file %s...", file);
  68             fflush (stdout);
  69         }
  70         font = FcFreeTypeQuery (file, id, blanks, &count);
  71         if (FcDebug () & FC_DBG_SCAN)
  72             printf ("done\n");
  73         /*
  74          * Add the font
  75          */
  76         if (font && (!config || FcConfigAcceptFont (config, font)))
  77         {
  78             if (!FcFontSetAdd (set, font))
  79             {
  80                 FcPatternDestroy (font);
  81                 font = 0;
  82                 ret = FcFalse;
  83             }
  84         }
  85         else if (font)
  86             FcPatternDestroy (font);
  87         id++;
  88     } while (font && ret && id < count);
  89     return ret;
  90 }
  91
  92 FcBool
  93 FcFileScan (FcFontSet       *set,
  94             FcStrSet        *dirs,
  95             FcGlobalCache   *cache,
  96             FcBlanks        *blanks,
  97             const FcChar8   *file,
  98             FcBool          force)
  99 {
 100     return FcFileScanConfig (set, dirs, cache, blanks, file, force, 0);
 101 }
 102
 103 /*
 104  * Scan 'dir', adding font files to 'set' and
 105  * subdirectories to 'dirs'
 106  */
 107
 108 FcBool
 109 FcDirScanConfig (FcFontSet      *set,
 110                  FcStrSet       *dirs,
 111                  FcGlobalCache  *cache,
 112                  FcBlanks       *blanks,
 113                  const FcChar8  *dir,
 114                  FcBool         force,
 115                  FcConfig       *config)
 116 {
 117     DIR                 *d;
 118     struct dirent       *e;
 119     FcChar8             *file;
 120     const FcChar8       *d_can = 0;
 121     FcChar8             *base;
 122     FcBool              ret = FcTrue;
 123     FcFontSet           *tmpSet;
 124     int                 i;
 125
 126     if (config && !FcConfigAcceptFilename (config, dir))
 127         return FcTrue;
 128
 129     if (config)
 130         d_can = FcConfigNormalizeFontDir (config, dir);
 131     if (d_can)
 132         dir = d_can;
 133
 134     if (!force)
 135     {
 136         /*
 137          * Check ~/.fonts.cache-<version> file
 138          */
 139         if (cache && FcGlobalCacheReadDir (set, dirs, cache, (char *)dir, config))
 140             return FcTrue;
 141
 142         if (FcDirCacheValid (dir) &&
 143             FcDirCacheHasCurrentArch (dir) &&
 144             FcDirCacheRead (set, dirs, dir, config))
 145             return FcTrue;
 146     }
 147
 148     /* freed below */
 149     file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1);
 150     if (!file)
 151         return FcFalse;
 152
 153     strcpy ((char *) file, (char *) dir);
 154     strcat ((char *) file, "/");
 155     base = file + strlen ((char *) file);
 156
 157     if (FcDebug () & FC_DBG_SCAN)
 158         printf ("\tScanning dir %s\n", dir);
 159
 160     d = opendir ((char *) dir);
 161     if (!d)
 162     {
 163         free (file);
 164         /* Don't complain about missing directories */
 165         if (errno == ENOENT)
 166             return FcTrue;
 167         return FcFalse;
 168     }
 169
 170     tmpSet = FcFontSetCreate();
 171     if (!tmpSet)
 172     {
 173         free (file);
 174         return FcFalse;
 175     }
 176
 177     while (ret && (e = readdir (d)))
 178     {
 179         if (e->d_name[0] != '.' && strlen (e->d_name) < FC_MAX_FILE_LEN)
 180         {
 181             strcpy ((char *) base, (char *) e->d_name);
 182             ret = FcFileScanConfig (tmpSet, dirs, cache, blanks, file, force, config);
 183         }
 184     }
 185     free (file);
 186     closedir (d);
 187     /*
 188      * Now that the directory has been scanned,
 189      * add the cache entry
 190      */
 191     if (ret && cache)
 192         FcGlobalCacheUpdate (cache, dirs, (char *)dir, tmpSet, config);
 193
 194     for (i = 0; i < tmpSet->nfont; i++)
 195         FcFontSetAdd (set, tmpSet->fonts[i]);
 196
 197     if (tmpSet->fonts)
 198     {
 199         FcMemFree (FC_MEM_FONTPTR, tmpSet->sfont * sizeof (FcPattern *));
 200         free (tmpSet->fonts);
 201     }
 202     FcMemFree (FC_MEM_FONTSET, sizeof (FcFontSet));
 203     free (tmpSet);
 204
 205     return ret;
 206 }
 207
 208 FcBool
 209 FcDirScan (FcFontSet        *set,
 210            FcStrSet         *dirs,
 211            FcGlobalCache    *cache,
 212            FcBlanks         *blanks,
 213            const FcChar8    *dir,
 214            FcBool           force)
 215 {
 216     return FcDirScanConfig (set, dirs, cache, blanks, dir, force, 0);
 217 }
 218
 219 FcBool
 220 FcDirSave (FcFontSet *set, FcStrSet * dirs, const FcChar8 *dir)
 221 {
 222     return FcDirCacheWrite (set, dirs, dir);
 223 }