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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 | 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 | /* | |
133 | * Scan the specified directory and construct a cache of its contents | |
134 | */ | |
135 | FcCache * | |
136 | FcDirCacheScan (const FcChar8 *dir, FcConfig *config) | |
137 | { | |
138 | DIR *d; | |
139 | struct dirent *e; | |
140 | FcStrSet *files; | |
141 | FcStrSet *dirs; | |
142 | FcChar8 *file; | |
143 | FcChar8 *base; | |
144 | FcBool ret = FcTrue; | |
145 | FcFontSet *set; | |
146 | int i; | |
147 | FcBlanks *blanks = FcConfigGetBlanks (config); | |
148 | FcCache *cache = NULL; | |
149 | struct stat dir_stat; | |
150 | ||
151 | if (FcDebug () & FC_DBG_FONTSET) | |
152 | printf ("cache scan dir %s\n", dir); | |
153 | ||
154 | /* freed below */ | |
155 | file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1); | |
156 | if (!file) { | |
157 | ret = FcFalse; | |
158 | goto bail; | |
159 | } | |
160 | ||
161 | strcpy ((char *) file, (char *) dir); | |
162 | strcat ((char *) file, "/"); | |
163 | base = file + strlen ((char *) file); | |
164 | ||
165 | if (FcDebug () & FC_DBG_SCAN) | |
166 | printf ("\tScanning dir %s\n", dir); | |
167 | ||
168 | d = opendir ((char *) dir); | |
169 | if (!d) | |
170 | { | |
171 | /* Don't complain about missing directories */ | |
172 | if (errno == ENOENT) | |
173 | ret = FcTrue; | |
174 | else | |
175 | ret = FcFalse; | |
176 | goto bail_1; | |
177 | } | |
178 | if (stat ((char *) dir, &dir_stat) < 0) | |
179 | { | |
180 | ret = FcFalse; | |
181 | goto bail_1; | |
182 | } | |
183 | ||
184 | set = FcFontSetCreate(); | |
185 | if (!set) | |
186 | { | |
187 | ret = FcFalse; | |
188 | goto bail0; | |
189 | } | |
190 | ||
191 | files = FcStrSetCreate (); | |
192 | if (!files) | |
193 | { | |
194 | ret = FcFalse; | |
195 | goto bail1; | |
196 | } | |
197 | while ((e = readdir (d))) | |
198 | { | |
199 | if (e->d_name[0] != '.' && strlen (e->d_name) < FC_MAX_FILE_LEN) | |
200 | { | |
201 | strcpy ((char *) base, (char *) e->d_name); | |
202 | if (!FcStrSetAdd (files, file)) { | |
203 | ret = FcFalse; | |
204 | goto bail2; | |
205 | } | |
206 | } | |
207 | } | |
208 | ||
209 | /* | |
210 | * Sort files to make things prettier | |
211 | */ | |
212 | qsort(files->strs, files->num, sizeof(FcChar8 *), cmpstringp); | |
213 | ||
214 | dirs = FcStrSetCreate (); | |
215 | if (!dirs) | |
216 | goto bail2; | |
217 | ||
218 | /* | |
219 | * Scan file files to build font patterns | |
220 | */ | |
221 | for (i = 0; i < files->num; i++) | |
222 | FcFileScanConfig (set, dirs, blanks, files->strs[i], config); | |
223 | ||
224 | /* | |
225 | * Build the cache object | |
226 | */ | |
227 | cache = FcDirCacheBuild (set, dir, &dir_stat, dirs); | |
228 | if (!cache) | |
229 | goto bail3; | |
230 | ||
231 | /* | |
232 | * Write out the cache file, ignoring any troubles | |
233 | */ | |
234 | FcDirCacheWrite (cache, config); | |
235 | ||
236 | bail3: | |
237 | FcStrSetDestroy (dirs); | |
238 | bail2: | |
239 | FcStrSetDestroy (files); | |
240 | bail1: | |
241 | FcFontSetDestroy (set); | |
242 | ||
243 | bail0: | |
244 | closedir (d); | |
245 | ||
246 | bail_1: | |
247 | free (file); | |
248 | bail: | |
249 | return cache; | |
250 | } | |
251 | ||
252 | /* | |
253 | * Read (or construct) the cache for a directory | |
254 | */ | |
255 | FcCache * | |
256 | FcDirCacheRead (const FcChar8 *dir, FcBool force, FcConfig *config) | |
257 | { | |
258 | FcCache *cache = NULL; | |
259 | ||
260 | if (config && !FcConfigAcceptFilename (config, dir)) | |
261 | return NULL; | |
262 | ||
263 | /* Try to use existing cache file */ | |
264 | if (!force) | |
265 | cache = FcDirCacheLoad (dir, config, NULL); | |
266 | ||
267 | /* Not using existing cache file, construct new cache */ | |
268 | if (!cache) | |
269 | cache = FcDirCacheScan (dir, config); | |
270 | ||
271 | return cache; | |
272 | } | |
273 | ||
274 | FcBool | |
275 | FcDirScanConfig (FcFontSet *set, | |
276 | FcStrSet *dirs, | |
277 | FcBlanks *blanks, | |
278 | const FcChar8 *dir, | |
279 | FcBool force, | |
280 | FcConfig *config) | |
281 | { | |
282 | return FcFalse; /* XXX deprecated */ | |
283 | } | |
284 | ||
285 | FcBool | |
286 | FcDirScan (FcFontSet *set, | |
287 | FcStrSet *dirs, | |
288 | FcFileCache *cache, /* XXX unused */ | |
289 | FcBlanks *blanks, | |
290 | const FcChar8 *dir, | |
291 | FcBool force) | |
292 | { | |
293 | return FcFalse; /* XXX deprecated */ | |
294 | } | |
295 | ||
296 | FcBool | |
297 | FcDirSave (FcFontSet *set, FcStrSet * dirs, const FcChar8 *dir) | |
298 | { | |
299 | return FcFalse; /* XXX deprecated */ | |
300 | } | |
301 | #define __fcdir__ | |
302 | #include "fcaliastail.h" | |
303 | #undef __fcdir__ |