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     if (force)
  59         cache = 0;
  60
  61     id = 0;
  62     do
  63     {
  64         font = 0;
  65         /*
  66          * Nothing in the cache, scan the file
  67          */
  68         if (FcDebug () & FC_DBG_SCAN)
  69         {
  70             printf ("\tScanning file %s...", file);
  71             fflush (stdout);
  72         }
  73         font = FcFreeTypeQuery (file, id, blanks, &count);
  74         if (FcDebug () & FC_DBG_SCAN)
  75             printf ("done\n");
  76         /*
  77          * Add the font
  78          */
  79         if (font && (!config || FcConfigAcceptFont (config, font)))
  80         {
  81             if (!FcFontSetAdd (set, font))
  82             {
  83                 FcPatternDestroy (font);
  84                 font = 0;
  85                 ret = FcFalse;
  86             }
  87         }
  88         else if (font)
  89             FcPatternDestroy (font);
  90         id++;
  91     } while (font && ret && id < count);
  92     return ret;
  93 }
  94
  95 FcBool
  96 FcFileScan (FcFontSet       *set,
  97             FcStrSet        *dirs,
  98             FcGlobalCache   *cache,
  99             FcBlanks        *blanks,
 100             const FcChar8   *file,
 101             FcBool          force)
 102 {
 103     return FcFileScanConfig (set, dirs, cache, blanks, file, force, 0);
 104 }
 105
 106 /*
 107  * Scan 'dir', adding font files to 'set' and
 108  * subdirectories to 'dirs'
 109  */
 110
 111 FcBool
 112 FcDirScanConfig (FcFontSet      *set,
 113                  FcStrSet       *dirs,
 114                  FcGlobalCache  *cache,
 115                  FcBlanks       *blanks,
 116                  const FcChar8  *dir,
 117                  FcBool         force,
 118                  FcConfig       *config)
 119 {
 120     DIR                 *d;
 121     struct dirent       *e;
 122     FcChar8             *file;
 123     FcChar8             *base;
 124     FcBool              ret = FcTrue;
 125     FcFontSet           *tmpSet;
 126     int                 i;
 127
 128     if (config && !FcConfigAcceptFilename (config, dir))
 129         return FcTrue;
 130
 131     if (config)
 132         dir = FcConfigNormalizeFontDir (config, dir);
 133
 134     /* refuse to scan a directory that can't be normalized. */
 135     if (!dir)
 136         return FcFalse;
 137
 138     if (!force)
 139     {
 140         /*
 141          * Check ~/.fonts.cache-<version> file
 142          */
 143         if (cache && FcGlobalCacheReadDir (set, dirs, cache, (char *)dir, config))
 144             return FcTrue;
 145
 146         if (FcDirCacheValid (dir) && FcDirCacheRead (set, dirs, dir, config))
 147             return FcTrue;
 148     }
 149
 150     /* freed below */
 151     file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1);
 152     if (!file)
 153         return FcFalse;
 154
 155     strcpy ((char *) file, (char *) dir);
 156     strcat ((char *) file, "/");
 157     base = file + strlen ((char *) file);
 158
 159     if (FcDebug () & FC_DBG_SCAN)
 160         printf ("\tScanning dir %s\n", dir);
 161
 162     d = opendir ((char *) dir);
 163     if (!d)
 164     {
 165         free (file);
 166         /* Don't complain about missing directories */
 167         if (errno == ENOENT)
 168             return FcTrue;
 169         return FcFalse;
 170     }
 171
 172     tmpSet = FcFontSetCreate();
 173     if (!tmpSet)
 174     {
 175         free (file);
 176         return FcFalse;
 177     }
 178
 179     while (ret && (e = readdir (d)))
 180     {
 181         if (e->d_name[0] != '.' && strlen (e->d_name) < FC_MAX_FILE_LEN)
 182         {
 183             strcpy ((char *) base, (char *) e->d_name);
 184             ret = FcFileScanConfig (tmpSet, dirs, cache, blanks, file, force, config);
 185         }
 186     }
 187     free (file);
 188     closedir (d);
 189     /*
 190      * Now that the directory has been scanned,
 191      * add the cache entry
 192      */
 193     if (ret && cache)
 194         FcGlobalCacheUpdate (cache, dirs, (char *)dir, tmpSet, config);
 195
 196     for (i = 0; i < tmpSet->nfont; i++)
 197         FcFontSetAdd (set, tmpSet->fonts[i]);
 198
 199     if (tmpSet->fonts)
 200     {
 201         FcMemFree (FC_MEM_FONTPTR, tmpSet->sfont * sizeof (FcPattern *));
 202         free (tmpSet->fonts);
 203     }
 204     FcMemFree (FC_MEM_FONTSET, sizeof (FcFontSet));
 205     free (tmpSet);
 206
 207     return ret;
 208 }
 209
 210 FcBool
 211 FcDirScan (FcFontSet        *set,
 212            FcStrSet         *dirs,
 213            FcGlobalCache    *cache,
 214            FcBlanks         *blanks,
 215            const FcChar8    *dir,
 216            FcBool           force)
 217 {
 218     return FcDirScanConfig (set, dirs, cache, blanks, dir, force, 0);
 219 }
 220
 221 FcBool
 222 FcDirSave (FcFontSet *set, FcStrSet * dirs, const FcChar8 *dir)
 223 {
 224     return FcDirCacheWrite (set, dirs, dir);
 225 }