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1 | /* | |
2 | * fontconfig/src/fcdir.c | |
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 (FcStat ((const char *) file, &statb) != 0) | |
34 | return FcFalse; | |
35 | return S_ISDIR(statb.st_mode); | |
36 | } | |
37 | ||
38 | static FcBool | |
39 | FcFileScanFontConfig (FcFontSet *set, | |
40 | FcBlanks *blanks, | |
41 | const FcChar8 *file, | |
42 | FcConfig *config) | |
43 | { | |
44 | FcPattern *font; | |
45 | FcBool ret = FcTrue; | |
46 | int id; | |
47 | int count = 0; | |
48 | ||
49 | id = 0; | |
50 | do | |
51 | { | |
52 | font = 0; | |
53 | /* | |
54 | * Nothing in the cache, scan the file | |
55 | */ | |
56 | if (FcDebug () & FC_DBG_SCAN) | |
57 | { | |
58 | printf ("\tScanning file %s...", file); | |
59 | fflush (stdout); | |
60 | } | |
61 | font = FcFreeTypeQuery (file, id, blanks, &count); | |
62 | if (FcDebug () & FC_DBG_SCAN) | |
63 | printf ("done\n"); | |
64 | ||
65 | /* | |
66 | * Edit pattern with user-defined rules | |
67 | */ | |
68 | if (font && config && !FcConfigSubstituteWithPat (config, font, NULL, FcMatchScan)) | |
69 | { | |
70 | FcPatternDestroy (font); | |
71 | font = NULL; | |
72 | ret = FcFalse; | |
73 | } | |
74 | ||
75 | /* | |
76 | * Add the font | |
77 | */ | |
78 | if (font && (!config || FcConfigAcceptFont (config, font))) | |
79 | { | |
80 | if (FcDebug() & FC_DBG_SCANV) | |
81 | { | |
82 | printf ("Final font pattern:\n"); | |
83 | FcPatternPrint (font); | |
84 | } | |
85 | if (!FcFontSetAdd (set, font)) | |
86 | { | |
87 | FcPatternDestroy (font); | |
88 | font = NULL; | |
89 | ret = FcFalse; | |
90 | } | |
91 | } | |
92 | else if (font) | |
93 | FcPatternDestroy (font); | |
94 | id++; | |
95 | } while (font && ret && id < count); | |
96 | return ret; | |
97 | } | |
98 | ||
99 | FcBool | |
100 | FcFileScanConfig (FcFontSet *set, | |
101 | FcStrSet *dirs, | |
102 | FcBlanks *blanks, | |
103 | const FcChar8 *file, | |
104 | FcConfig *config) | |
105 | { | |
106 | if (FcFileIsDir (file)) | |
107 | return FcStrSetAdd (dirs, file); | |
108 | else | |
109 | return FcFileScanFontConfig (set, blanks, file, config); | |
110 | } | |
111 | ||
112 | FcBool | |
113 | FcFileScan (FcFontSet *set, | |
114 | FcStrSet *dirs, | |
115 | FcFileCache *cache, /* XXX unused */ | |
116 | FcBlanks *blanks, | |
117 | const FcChar8 *file, | |
118 | FcBool force) | |
119 | { | |
120 | return FcFileScanConfig (set, dirs, blanks, file, NULL); | |
121 | } | |
122 | ||
123 | /* | |
124 | * Strcmp helper that takes pointers to pointers, copied from qsort(3) manpage | |
125 | */ | |
126 | static int | |
127 | cmpstringp(const void *p1, const void *p2) | |
128 | { | |
129 | return strcmp(* (char **) p1, * (char **) p2); | |
130 | } | |
131 | ||
132 | FcBool | |
133 | FcDirScanConfig (FcFontSet *set, | |
134 | FcStrSet *dirs, | |
135 | FcBlanks *blanks, | |
136 | const FcChar8 *dir, | |
137 | FcBool force, /* XXX unused */ | |
138 | FcConfig *config) | |
139 | { | |
140 | DIR *d; | |
141 | struct dirent *e; | |
142 | FcStrSet *files; | |
143 | FcChar8 *file; | |
144 | FcChar8 *base; | |
145 | FcBool ret = FcTrue; | |
146 | int i; | |
147 | ||
148 | if (!force) | |
149 | return FcFalse; | |
150 | ||
151 | if (!set && !dirs) | |
152 | return FcTrue; | |
153 | ||
154 | if (!blanks) | |
155 | blanks = FcConfigGetBlanks (config); | |
156 | ||
157 | /* freed below */ | |
158 | file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1); | |
159 | if (!file) { | |
160 | ret = FcFalse; | |
161 | goto bail; | |
162 | } | |
163 | ||
164 | strcpy ((char *) file, (char *) dir); | |
165 | strcat ((char *) file, "/"); | |
166 | base = file + strlen ((char *) file); | |
167 | ||
168 | if (FcDebug () & FC_DBG_SCAN) | |
169 | printf ("\tScanning dir %s\n", dir); | |
170 | ||
171 | d = opendir ((char *) dir); | |
172 | if (!d) | |
173 | { | |
174 | /* Don't complain about missing directories */ | |
175 | if (errno != ENOENT) | |
176 | ret = FcFalse; | |
177 | goto bail; | |
178 | } | |
179 | ||
180 | files = FcStrSetCreate (); | |
181 | if (!files) | |
182 | { | |
183 | ret = FcFalse; | |
184 | goto bail1; | |
185 | } | |
186 | while ((e = readdir (d))) | |
187 | { | |
188 | if (e->d_name[0] != '.' && strlen (e->d_name) < FC_MAX_FILE_LEN) | |
189 | { | |
190 | strcpy ((char *) base, (char *) e->d_name); | |
191 | if (!FcStrSetAdd (files, file)) { | |
192 | ret = FcFalse; | |
193 | goto bail2; | |
194 | } | |
195 | } | |
196 | } | |
197 | ||
198 | /* | |
199 | * Sort files to make things prettier | |
200 | */ | |
201 | qsort(files->strs, files->num, sizeof(FcChar8 *), cmpstringp); | |
202 | ||
203 | /* | |
204 | * Scan file files to build font patterns | |
205 | */ | |
206 | for (i = 0; i < files->num; i++) | |
207 | FcFileScanConfig (set, dirs, blanks, files->strs[i], config); | |
208 | ||
209 | bail2: | |
210 | FcStrSetDestroy (files); | |
211 | bail1: | |
212 | closedir (d); | |
213 | bail: | |
214 | return ret; | |
215 | } | |
216 | ||
217 | FcBool | |
218 | FcDirScan (FcFontSet *set, | |
219 | FcStrSet *dirs, | |
220 | FcFileCache *cache, /* XXX unused */ | |
221 | FcBlanks *blanks, | |
222 | const FcChar8 *dir, | |
223 | FcBool force /* XXX unused */) | |
224 | { | |
225 | if (cache || !force) | |
226 | return FcFalse; | |
227 | ||
228 | return FcDirScanConfig (set, dirs, blanks, dir, force, NULL); | |
229 | } | |
230 | ||
231 | /* | |
232 | * Scan the specified directory and construct a cache of its contents | |
233 | */ | |
234 | FcCache * | |
235 | FcDirCacheScan (const FcChar8 *dir, FcConfig *config) | |
236 | { | |
237 | FcStrSet *dirs; | |
238 | FcBool ret = FcTrue; | |
239 | FcFontSet *set; | |
240 | FcCache *cache = NULL; | |
241 | struct stat dir_stat; | |
242 | ||
243 | if (FcDebug () & FC_DBG_FONTSET) | |
244 | printf ("cache scan dir %s\n", dir); | |
245 | ||
246 | if (FcStat ((char *) dir, &dir_stat) < 0) | |
247 | { | |
248 | if (errno != ENOENT) | |
249 | ret = FcFalse; | |
250 | goto bail; | |
251 | } | |
252 | ||
253 | set = FcFontSetCreate(); | |
254 | if (!set) | |
255 | { | |
256 | ret = FcFalse; | |
257 | goto bail; | |
258 | } | |
259 | ||
260 | dirs = FcStrSetCreate (); | |
261 | if (!dirs) | |
262 | { | |
263 | ret = FcFalse; | |
264 | goto bail1; | |
265 | } | |
266 | ||
267 | /* | |
268 | * Scan the dir | |
269 | */ | |
270 | if (!FcDirScanConfig (set, dirs, NULL, dir, FcTrue, config)) | |
271 | { | |
272 | ret = FcFalse; | |
273 | goto bail2; | |
274 | } | |
275 | ||
276 | /* | |
277 | * Build the cache object | |
278 | */ | |
279 | cache = FcDirCacheBuild (set, dir, &dir_stat, dirs); | |
280 | if (!cache) | |
281 | { | |
282 | ret = FcFalse; | |
283 | goto bail2; | |
284 | } | |
285 | ||
286 | /* | |
287 | * Write out the cache file, ignoring any troubles | |
288 | */ | |
289 | FcDirCacheWrite (cache, config); | |
290 | ||
291 | bail2: | |
292 | FcStrSetDestroy (dirs); | |
293 | bail1: | |
294 | FcFontSetDestroy (set); | |
295 | bail: | |
296 | return cache; | |
297 | } | |
298 | ||
299 | /* | |
300 | * Read (or construct) the cache for a directory | |
301 | */ | |
302 | FcCache * | |
303 | FcDirCacheRead (const FcChar8 *dir, FcBool force, FcConfig *config) | |
304 | { | |
305 | FcCache *cache = NULL; | |
306 | ||
307 | if (config && !FcConfigAcceptFilename (config, dir)) | |
308 | return NULL; | |
309 | ||
310 | /* Try to use existing cache file */ | |
311 | if (!force) | |
312 | cache = FcDirCacheLoad (dir, config, NULL); | |
313 | ||
314 | /* Not using existing cache file, construct new cache */ | |
315 | if (!cache) | |
316 | cache = FcDirCacheScan (dir, config); | |
317 | ||
318 | return cache; | |
319 | } | |
320 | ||
321 | FcBool | |
322 | FcDirSave (FcFontSet *set, FcStrSet * dirs, const FcChar8 *dir) | |
323 | { | |
324 | return FcFalse; /* XXX deprecated */ | |
325 | } | |
326 | #define __fcdir__ | |
327 | #include "fcaliastail.h" | |
328 | #undef __fcdir__ |