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