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24330d27 | 1 | /* |
4bd4418a | 2 | * $RCSId: xc/lib/fontconfig/src/fcmatch.c,v 1.20 2002/08/31 22:17:32 keithp Exp $ |
24330d27 | 3 | * |
46b51147 | 4 | * Copyright © 2000 Keith Packard |
24330d27 KP |
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 <string.h> | |
26 | #include <ctype.h> | |
27 | #include "fcint.h" | |
28 | #include <stdio.h> | |
29 | ||
30 | static double | |
9ab79bdf | 31 | FcCompareNumber (FcValue *value1, FcValue *value2) |
24330d27 | 32 | { |
2d39321f | 33 | double v1, v2, v; |
24330d27 | 34 | |
4262e0b3 | 35 | switch (value1->type) { |
2d39321f | 36 | case FcTypeInteger: |
4262e0b3 | 37 | v1 = (double) value1->u.i; |
2d39321f KP |
38 | break; |
39 | case FcTypeDouble: | |
4262e0b3 | 40 | v1 = value1->u.d; |
2d39321f KP |
41 | break; |
42 | default: | |
24330d27 | 43 | return -1.0; |
2d39321f | 44 | } |
4262e0b3 | 45 | switch (value2->type) { |
2d39321f | 46 | case FcTypeInteger: |
4262e0b3 | 47 | v2 = (double) value2->u.i; |
2d39321f KP |
48 | break; |
49 | case FcTypeDouble: | |
4262e0b3 | 50 | v2 = value2->u.d; |
2d39321f KP |
51 | break; |
52 | default: | |
53 | return -1.0; | |
54 | } | |
55 | v = v2 - v1; | |
24330d27 KP |
56 | if (v < 0) |
57 | v = -v; | |
4f8b266f | 58 | return v; |
24330d27 KP |
59 | } |
60 | ||
61 | static double | |
9ab79bdf | 62 | FcCompareString (FcValue *v1, FcValue *v2) |
24330d27 | 63 | { |
1c9fdcca | 64 | return (double) FcStrCmpIgnoreCase (fc_value_string(v1), fc_value_string(v2)) != 0; |
24330d27 KP |
65 | } |
66 | ||
82f4243f | 67 | static double |
9ab79bdf | 68 | FcCompareFamily (FcValue *v1, FcValue *v2) |
82f4243f | 69 | { |
4f8b266f PL |
70 | /* rely on the guarantee in FcPatternAddWithBinding that |
71 | * families are always FcTypeString. */ | |
4f8b266f PL |
72 | const FcChar8* v1_string = fc_value_string(v1); |
73 | const FcChar8* v2_string = fc_value_string(v2); | |
74 | ||
75 | if (FcToLower(*v1_string) != FcToLower(*v2_string)) | |
76 | return 1.0; | |
77 | ||
78 | return (double) FcStrCmpIgnoreBlanksAndCase (v1_string, v2_string) != 0; | |
82f4243f KP |
79 | } |
80 | ||
81 | static double | |
9ab79bdf | 82 | FcCompareLang (FcValue *v1, FcValue *v2) |
82f4243f KP |
83 | { |
84 | FcLangResult result; | |
4262e0b3 | 85 | FcValue value1 = FcValueCanonicalize(v1), value2 = FcValueCanonicalize(v2); |
82f4243f | 86 | |
d8d73958 KP |
87 | switch (value1.type) { |
88 | case FcTypeLangSet: | |
89 | switch (value2.type) { | |
90 | case FcTypeLangSet: | |
4262e0b3 | 91 | result = FcLangSetCompare (value1.u.l, value2.u.l); |
d8d73958 KP |
92 | break; |
93 | case FcTypeString: | |
4262e0b3 PL |
94 | result = FcLangSetHasLang (value1.u.l, |
95 | value2.u.s); | |
d8d73958 KP |
96 | break; |
97 | default: | |
98 | return -1.0; | |
99 | } | |
100 | break; | |
101 | case FcTypeString: | |
102 | switch (value2.type) { | |
103 | case FcTypeLangSet: | |
4262e0b3 | 104 | result = FcLangSetHasLang (value2.u.l, value1.u.s); |
d8d73958 KP |
105 | break; |
106 | case FcTypeString: | |
4262e0b3 PL |
107 | result = FcLangCompare (value1.u.s, |
108 | value2.u.s); | |
d8d73958 KP |
109 | break; |
110 | default: | |
111 | return -1.0; | |
112 | } | |
113 | break; | |
114 | default: | |
82f4243f | 115 | return -1.0; |
d8d73958 | 116 | } |
82f4243f KP |
117 | switch (result) { |
118 | case FcLangEqual: | |
119 | return 0; | |
120 | case FcLangDifferentCountry: | |
121 | return 1; | |
122 | case FcLangDifferentLang: | |
123 | default: | |
124 | return 2; | |
125 | } | |
126 | } | |
127 | ||
24330d27 | 128 | static double |
9ab79bdf | 129 | FcCompareBool (FcValue *v1, FcValue *v2) |
24330d27 | 130 | { |
1c9fdcca | 131 | if (fc_storage_type(v2) != FcTypeBool || fc_storage_type(v1) != FcTypeBool) |
24330d27 | 132 | return -1.0; |
1c9fdcca | 133 | return (double) v2->u.b != v1->u.b; |
24330d27 KP |
134 | } |
135 | ||
136 | static double | |
9ab79bdf | 137 | FcCompareCharSet (FcValue *v1, FcValue *v2) |
24330d27 | 138 | { |
1c9fdcca | 139 | return (double) FcCharSetSubtractCount (fc_value_charset(v1), fc_value_charset(v2)); |
24330d27 KP |
140 | } |
141 | ||
142 | static double | |
9ab79bdf | 143 | FcCompareSize (FcValue *value1, FcValue *value2) |
24330d27 KP |
144 | { |
145 | double v1, v2, v; | |
146 | ||
4262e0b3 | 147 | switch (value1->type) { |
24330d27 | 148 | case FcTypeInteger: |
4262e0b3 | 149 | v1 = value1->u.i; |
24330d27 KP |
150 | break; |
151 | case FcTypeDouble: | |
4262e0b3 | 152 | v1 = value1->u.d; |
24330d27 KP |
153 | break; |
154 | default: | |
155 | return -1; | |
156 | } | |
4262e0b3 | 157 | switch (value2->type) { |
24330d27 | 158 | case FcTypeInteger: |
4262e0b3 | 159 | v2 = value2->u.i; |
24330d27 KP |
160 | break; |
161 | case FcTypeDouble: | |
4262e0b3 | 162 | v2 = value2->u.d; |
24330d27 KP |
163 | break; |
164 | default: | |
165 | return -1; | |
166 | } | |
167 | if (v2 == 0) | |
168 | return 0; | |
169 | v = v2 - v1; | |
170 | if (v < 0) | |
171 | v = -v; | |
172 | return v; | |
173 | } | |
174 | ||
4c003605 | 175 | typedef struct _FcMatcher { |
67accef4 | 176 | const char *object; |
9ab79bdf | 177 | double (*compare) (FcValue *value1, FcValue *value2); |
4c003605 KP |
178 | int strong, weak; |
179 | } FcMatcher; | |
180 | ||
24330d27 KP |
181 | /* |
182 | * Order is significant, it defines the precedence of | |
183 | * each value, earlier values are more significant than | |
184 | * later values | |
185 | */ | |
186 | static FcMatcher _FcMatchers [] = { | |
4c003605 KP |
187 | { FC_FOUNDRY, FcCompareString, 0, 0 }, |
188 | #define MATCH_FOUNDRY 0 | |
5cf8c536 | 189 | #define MATCH_FOUNDRY_INDEX 0 |
bc9469ba | 190 | |
4c003605 KP |
191 | { FC_CHARSET, FcCompareCharSet, 1, 1 }, |
192 | #define MATCH_CHARSET 1 | |
5cf8c536 | 193 | #define MATCH_CHARSET_INDEX 1 |
bc9469ba | 194 | |
82f4243f | 195 | { FC_FAMILY, FcCompareFamily, 2, 4 }, |
4c003605 | 196 | #define MATCH_FAMILY 2 |
5cf8c536 KP |
197 | #define MATCH_FAMILY_STRONG_INDEX 2 |
198 | #define MATCH_FAMILY_WEAK_INDEX 4 | |
bc9469ba | 199 | |
82f4243f | 200 | { FC_LANG, FcCompareLang, 3, 3 }, |
4c003605 | 201 | #define MATCH_LANG 3 |
5cf8c536 | 202 | #define MATCH_LANG_INDEX 3 |
bc9469ba | 203 | |
2d39321f | 204 | { FC_SPACING, FcCompareNumber, 5, 5 }, |
4c003605 | 205 | #define MATCH_SPACING 4 |
5cf8c536 | 206 | #define MATCH_SPACING_INDEX 5 |
bc9469ba | 207 | |
4c003605 KP |
208 | { FC_PIXEL_SIZE, FcCompareSize, 6, 6 }, |
209 | #define MATCH_PIXEL_SIZE 5 | |
5cf8c536 | 210 | #define MATCH_PIXEL_SIZE_INDEX 6 |
bc9469ba | 211 | |
4c003605 KP |
212 | { FC_STYLE, FcCompareString, 7, 7 }, |
213 | #define MATCH_STYLE 6 | |
5cf8c536 | 214 | #define MATCH_STYLE_INDEX 7 |
bc9469ba | 215 | |
2d39321f | 216 | { FC_SLANT, FcCompareNumber, 8, 8 }, |
4c003605 | 217 | #define MATCH_SLANT 7 |
5cf8c536 | 218 | #define MATCH_SLANT_INDEX 8 |
bc9469ba | 219 | |
2d39321f | 220 | { FC_WEIGHT, FcCompareNumber, 9, 9 }, |
4c003605 | 221 | #define MATCH_WEIGHT 8 |
5cf8c536 | 222 | #define MATCH_WEIGHT_INDEX 9 |
f534109f | 223 | |
81fa16c3 KP |
224 | { FC_WIDTH, FcCompareNumber, 10, 10 }, |
225 | #define MATCH_WIDTH 9 | |
5cf8c536 | 226 | #define MATCH_WIDTH_INDEX 10 |
bc9469ba | 227 | |
81fa16c3 KP |
228 | { FC_ANTIALIAS, FcCompareBool, 11, 11 }, |
229 | #define MATCH_ANTIALIAS 10 | |
5cf8c536 | 230 | #define MATCH_ANTIALIAS_INDEX 11 |
bc9469ba | 231 | |
81fa16c3 KP |
232 | { FC_RASTERIZER, FcCompareString, 12, 12 }, |
233 | #define MATCH_RASTERIZER 11 | |
5cf8c536 KP |
234 | #define MATCH_RASTERIZER_INDEX 12 |
235 | ||
81fa16c3 KP |
236 | { FC_OUTLINE, FcCompareBool, 13, 13 }, |
237 | #define MATCH_OUTLINE 12 | |
5cf8c536 | 238 | #define MATCH_OUTLINE_INDEX 13 |
a342e87d | 239 | |
81fa16c3 KP |
240 | { FC_FONTVERSION, FcCompareNumber, 14, 14 }, |
241 | #define MATCH_FONTVERSION 13 | |
5cf8c536 | 242 | #define MATCH_FONTVERSION_INDEX 14 |
24330d27 KP |
243 | }; |
244 | ||
81fa16c3 | 245 | #define NUM_MATCH_VALUES 15 |
24330d27 KP |
246 | |
247 | static FcBool | |
d854eaf8 | 248 | FcCompareValueList (FcObjectPtr o, |
cd2ec1a9 PL |
249 | FcValueListPtr v1orig, /* pattern */ |
250 | FcValueListPtr v2orig, /* target */ | |
24330d27 KP |
251 | FcValue *bestValue, |
252 | double *value, | |
253 | FcResult *result) | |
254 | { | |
adac22f2 PL |
255 | FcValueListPtr v1, v2; |
256 | FcValueList *v1_ptrU, *v2_ptrU; | |
4c003605 | 257 | double v, best, bestStrong, bestWeak; |
24330d27 | 258 | int i; |
4c003605 | 259 | int j; |
d854eaf8 PL |
260 | const char* object = FcObjectPtrU(o); |
261 | ||
bc9469ba KP |
262 | /* |
263 | * Locate the possible matching entry by examining the | |
264 | * first few characters in object | |
265 | */ | |
266 | i = -1; | |
d854eaf8 | 267 | switch (object[0]) { |
bc9469ba | 268 | case 'f': |
d854eaf8 | 269 | switch (object[1]) { |
bc9469ba | 270 | case 'o': |
d854eaf8 | 271 | switch (object[2]) { |
a342e87d KP |
272 | case 'u': |
273 | i = MATCH_FOUNDRY; break; | |
274 | case 'n': | |
275 | i = MATCH_FONTVERSION; break; | |
276 | } | |
277 | break; | |
bc9469ba KP |
278 | case 'a': |
279 | i = MATCH_FAMILY; break; | |
280 | } | |
281 | break; | |
282 | case 'c': | |
283 | i = MATCH_CHARSET; break; | |
284 | case 'a': | |
285 | i = MATCH_ANTIALIAS; break; | |
286 | case 'l': | |
287 | i = MATCH_LANG; break; | |
288 | case 's': | |
d854eaf8 | 289 | switch (object[1]) { |
bc9469ba KP |
290 | case 'p': |
291 | i = MATCH_SPACING; break; | |
292 | case 't': | |
293 | i = MATCH_STYLE; break; | |
294 | case 'l': | |
295 | i = MATCH_SLANT; break; | |
296 | } | |
297 | break; | |
298 | case 'p': | |
299 | i = MATCH_PIXEL_SIZE; break; | |
300 | case 'w': | |
d854eaf8 | 301 | switch (object[1]) { |
81fa16c3 KP |
302 | case 'i': |
303 | i = MATCH_WIDTH; break; | |
304 | case 'e': | |
305 | i = MATCH_WEIGHT; break; | |
306 | } | |
307 | break; | |
bc9469ba KP |
308 | case 'r': |
309 | i = MATCH_RASTERIZER; break; | |
310 | case 'o': | |
311 | i = MATCH_OUTLINE; break; | |
312 | } | |
313 | if (i == -1 || | |
314 | FcStrCmpIgnoreCase ((FcChar8 *) _FcMatchers[i].object, | |
315 | (FcChar8 *) object) != 0) | |
316 | { | |
317 | if (bestValue) | |
4262e0b3 | 318 | *bestValue = FcValueCanonicalize(&FcValueListPtrU(v2orig)->value); |
bc9469ba KP |
319 | return FcTrue; |
320 | } | |
24330d27 | 321 | best = 1e99; |
4c003605 KP |
322 | bestStrong = 1e99; |
323 | bestWeak = 1e99; | |
24330d27 | 324 | j = 0; |
adac22f2 PL |
325 | for (v1 = v1orig, v1_ptrU = FcValueListPtrU(v1); v1_ptrU; |
326 | v1 = FcValueListPtrU(v1)->next, v1_ptrU = FcValueListPtrU(v1)) | |
24330d27 | 327 | { |
adac22f2 | 328 | for (v2 = v2orig, v2_ptrU = FcValueListPtrU(v2); FcValueListPtrU(v2); |
cd2ec1a9 | 329 | v2 = FcValueListPtrU(v2)->next) |
24330d27 | 330 | { |
9ab79bdf | 331 | v = (*_FcMatchers[i].compare) (&v1_ptrU->value, |
adac22f2 | 332 | &v2_ptrU->value); |
24330d27 KP |
333 | if (v < 0) |
334 | { | |
335 | *result = FcResultTypeMismatch; | |
336 | return FcFalse; | |
337 | } | |
24330d27 KP |
338 | v = v * 100 + j; |
339 | if (v < best) | |
340 | { | |
341 | if (bestValue) | |
adac22f2 | 342 | *bestValue = FcValueCanonicalize(&v2_ptrU->value); |
24330d27 KP |
343 | best = v; |
344 | } | |
adac22f2 | 345 | if (v1_ptrU->binding == FcValueBindingStrong) |
4c003605 KP |
346 | { |
347 | if (v < bestStrong) | |
348 | bestStrong = v; | |
349 | } | |
350 | else | |
351 | { | |
352 | if (v < bestWeak) | |
353 | bestWeak = v; | |
354 | } | |
24330d27 KP |
355 | } |
356 | j++; | |
357 | } | |
358 | if (FcDebug () & FC_DBG_MATCHV) | |
359 | { | |
360 | printf (" %s: %g ", object, best); | |
361 | FcValueListPrint (v1orig); | |
362 | printf (", "); | |
363 | FcValueListPrint (v2orig); | |
364 | printf ("\n"); | |
365 | } | |
d0f07b8d | 366 | if (value) |
4c003605 KP |
367 | { |
368 | int weak = _FcMatchers[i].weak; | |
369 | int strong = _FcMatchers[i].strong; | |
370 | if (weak == strong) | |
371 | value[strong] += best; | |
372 | else | |
373 | { | |
374 | value[weak] += bestWeak; | |
375 | value[strong] += bestStrong; | |
376 | } | |
377 | } | |
24330d27 KP |
378 | return FcTrue; |
379 | } | |
380 | ||
381 | /* | |
382 | * Return a value indicating the distance between the two lists of | |
383 | * values | |
384 | */ | |
385 | ||
386 | static FcBool | |
387 | FcCompare (FcPattern *pat, | |
388 | FcPattern *fnt, | |
389 | double *value, | |
390 | FcResult *result) | |
391 | { | |
392 | int i, i1, i2; | |
393 | ||
4c003605 | 394 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
395 | value[i] = 0.0; |
396 | ||
bc9469ba KP |
397 | i1 = 0; |
398 | i2 = 0; | |
399 | while (i1 < pat->num && i2 < fnt->num) | |
24330d27 | 400 | { |
9ab79bdf PL |
401 | FcPatternElt *elt_i1 = FcPatternEltU(pat->elts)+i1; |
402 | FcPatternElt *elt_i2 = FcPatternEltU(fnt->elts)+i2; | |
403 | ||
404 | i = FcObjectPtrCompare(elt_i1->object, elt_i2->object); | |
bc9469ba KP |
405 | if (i > 0) |
406 | i2++; | |
407 | else if (i < 0) | |
408 | i1++; | |
409 | else | |
24330d27 | 410 | { |
d854eaf8 | 411 | if (!FcCompareValueList (elt_i1->object, |
9ab79bdf PL |
412 | elt_i1->values, elt_i2->values, |
413 | 0, value, result)) | |
bc9469ba KP |
414 | return FcFalse; |
415 | i1++; | |
416 | i2++; | |
24330d27 | 417 | } |
bc9469ba KP |
418 | } |
419 | return FcTrue; | |
24330d27 KP |
420 | } |
421 | ||
216fac98 KP |
422 | FcPattern * |
423 | FcFontRenderPrepare (FcConfig *config, | |
424 | FcPattern *pat, | |
425 | FcPattern *font) | |
426 | { | |
427 | FcPattern *new; | |
428 | int i; | |
429 | FcPatternElt *fe, *pe; | |
430 | FcValue v; | |
216fac98 KP |
431 | FcResult result; |
432 | ||
433 | new = FcPatternCreate (); | |
434 | if (!new) | |
435 | return 0; | |
436 | for (i = 0; i < font->num; i++) | |
437 | { | |
cd2ec1a9 PL |
438 | fe = FcPatternEltU(font->elts)+i; |
439 | pe = FcPatternFindElt (pat, FcObjectPtrU(fe->object)); | |
216fac98 KP |
440 | if (pe) |
441 | { | |
d854eaf8 | 442 | if (!FcCompareValueList (pe->object, pe->values, |
938bc633 | 443 | fe->values, &v, 0, &result)) |
216fac98 KP |
444 | { |
445 | FcPatternDestroy (new); | |
446 | return 0; | |
447 | } | |
448 | } | |
449 | else | |
4262e0b3 | 450 | v = FcValueCanonicalize(&FcValueListPtrU(fe->values)->value); |
cd2ec1a9 | 451 | FcPatternAdd (new, FcObjectPtrU(fe->object), v, FcFalse); |
216fac98 KP |
452 | } |
453 | for (i = 0; i < pat->num; i++) | |
454 | { | |
cd2ec1a9 PL |
455 | pe = FcPatternEltU(pat->elts)+i; |
456 | fe = FcPatternFindElt (font, FcObjectPtrU(pe->object)); | |
216fac98 | 457 | if (!fe) |
cd2ec1a9 | 458 | FcPatternAdd (new, FcObjectPtrU(pe->object), |
4262e0b3 | 459 | FcValueCanonicalize(&FcValueListPtrU(pe->values)->value), FcTrue); |
216fac98 | 460 | } |
793154ed PL |
461 | |
462 | if (FcPatternFindElt (font, FC_FILE)) | |
463 | FcPatternTransferFullFname (new, font); | |
464 | ||
fa244f3d | 465 | FcConfigSubstituteWithPat (config, new, pat, FcMatchFont); |
216fac98 KP |
466 | return new; |
467 | } | |
468 | ||
24330d27 | 469 | FcPattern * |
80c053b7 KP |
470 | FcFontSetMatch (FcConfig *config, |
471 | FcFontSet **sets, | |
472 | int nsets, | |
473 | FcPattern *p, | |
474 | FcResult *result) | |
24330d27 | 475 | { |
4c003605 | 476 | double score[NUM_MATCH_VALUES], bestscore[NUM_MATCH_VALUES]; |
24330d27 KP |
477 | int f; |
478 | FcFontSet *s; | |
479 | FcPattern *best; | |
24330d27 | 480 | int i; |
216fac98 | 481 | int set; |
24330d27 | 482 | |
4c003605 | 483 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
484 | bestscore[i] = 0; |
485 | best = 0; | |
486 | if (FcDebug () & FC_DBG_MATCH) | |
487 | { | |
488 | printf ("Match "); | |
489 | FcPatternPrint (p); | |
490 | } | |
491 | if (!config) | |
492 | { | |
493 | config = FcConfigGetCurrent (); | |
494 | if (!config) | |
ec0c740e KP |
495 | { |
496 | *result = FcResultOutOfMemory; | |
24330d27 | 497 | return 0; |
ec0c740e | 498 | } |
24330d27 | 499 | } |
80c053b7 | 500 | for (set = 0; set < nsets; set++) |
24330d27 | 501 | { |
80c053b7 | 502 | s = sets[set]; |
24330d27 KP |
503 | if (!s) |
504 | continue; | |
505 | for (f = 0; f < s->nfont; f++) | |
506 | { | |
507 | if (FcDebug () & FC_DBG_MATCHV) | |
508 | { | |
509 | printf ("Font %d ", f); | |
510 | FcPatternPrint (s->fonts[f]); | |
511 | } | |
512 | if (!FcCompare (p, s->fonts[f], score, result)) | |
513 | return 0; | |
514 | if (FcDebug () & FC_DBG_MATCHV) | |
515 | { | |
516 | printf ("Score"); | |
4c003605 | 517 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
518 | { |
519 | printf (" %g", score[i]); | |
520 | } | |
521 | printf ("\n"); | |
522 | } | |
4c003605 | 523 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
524 | { |
525 | if (best && bestscore[i] < score[i]) | |
526 | break; | |
527 | if (!best || score[i] < bestscore[i]) | |
528 | { | |
4c003605 | 529 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
530 | bestscore[i] = score[i]; |
531 | best = s->fonts[f]; | |
532 | break; | |
533 | } | |
534 | } | |
535 | } | |
536 | } | |
537 | if (FcDebug () & FC_DBG_MATCH) | |
538 | { | |
539 | printf ("Best score"); | |
4c003605 | 540 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
541 | printf (" %g", bestscore[i]); |
542 | FcPatternPrint (best); | |
543 | } | |
544 | if (!best) | |
545 | { | |
546 | *result = FcResultNoMatch; | |
547 | return 0; | |
548 | } | |
216fac98 | 549 | return FcFontRenderPrepare (config, p, best); |
24330d27 | 550 | } |
80c053b7 KP |
551 | |
552 | FcPattern * | |
553 | FcFontMatch (FcConfig *config, | |
554 | FcPattern *p, | |
555 | FcResult *result) | |
556 | { | |
557 | FcFontSet *sets[2]; | |
558 | int nsets; | |
559 | ||
560 | if (!config) | |
561 | { | |
562 | config = FcConfigGetCurrent (); | |
563 | if (!config) | |
564 | return 0; | |
565 | } | |
566 | nsets = 0; | |
567 | if (config->fonts[FcSetSystem]) | |
568 | sets[nsets++] = config->fonts[FcSetSystem]; | |
569 | if (config->fonts[FcSetApplication]) | |
570 | sets[nsets++] = config->fonts[FcSetApplication]; | |
571 | return FcFontSetMatch (config, sets, nsets, p, result); | |
572 | } | |
216fac98 | 573 | |
216fac98 | 574 | typedef struct _FcSortNode { |
216fac98 | 575 | FcPattern *pattern; |
4c003605 | 576 | double score[NUM_MATCH_VALUES]; |
216fac98 KP |
577 | } FcSortNode; |
578 | ||
0ab36ca8 KP |
579 | static int |
580 | FcSortCompare (const void *aa, const void *ab) | |
216fac98 | 581 | { |
0ab36ca8 KP |
582 | FcSortNode *a = *(FcSortNode **) aa; |
583 | FcSortNode *b = *(FcSortNode **) ab; | |
bc9469ba KP |
584 | double *as = &a->score[0]; |
585 | double *bs = &b->score[0]; | |
88c747e2 | 586 | double ad = 0, bd = 0; |
0ab36ca8 | 587 | int i; |
216fac98 | 588 | |
4c003605 | 589 | i = NUM_MATCH_VALUES; |
bc9469ba KP |
590 | while (i-- && (ad = *as++) == (bd = *bs++)) |
591 | ; | |
592 | return ad < bd ? -1 : ad > bd ? 1 : 0; | |
216fac98 KP |
593 | } |
594 | ||
595 | static FcBool | |
0ab36ca8 | 596 | FcSortWalk (FcSortNode **n, int nnode, FcFontSet *fs, FcCharSet **cs, FcBool trim) |
216fac98 KP |
597 | { |
598 | FcCharSet *ncs; | |
0ab36ca8 KP |
599 | FcSortNode *node; |
600 | ||
601 | while (nnode--) | |
216fac98 | 602 | { |
0ab36ca8 KP |
603 | node = *n++; |
604 | if (FcPatternGetCharSet (node->pattern, FC_CHARSET, 0, &ncs) == | |
605 | FcResultMatch) | |
216fac98 | 606 | { |
1412a699 KP |
607 | /* |
608 | * If this font isn't a subset of the previous fonts, | |
609 | * add it to the list | |
610 | */ | |
611 | if (!trim || !*cs || !FcCharSetIsSubset (ncs, *cs)) | |
216fac98 | 612 | { |
0ab36ca8 KP |
613 | if (*cs) |
614 | { | |
615 | ncs = FcCharSetUnion (ncs, *cs); | |
616 | if (!ncs) | |
617 | return FcFalse; | |
618 | FcCharSetDestroy (*cs); | |
619 | } | |
620 | else | |
621 | ncs = FcCharSetCopy (ncs); | |
622 | *cs = ncs; | |
6f6563ed | 623 | FcPatternReference (node->pattern); |
82f4243f KP |
624 | if (FcDebug () & FC_DBG_MATCH) |
625 | { | |
626 | printf ("Add "); | |
627 | FcPatternPrint (node->pattern); | |
628 | } | |
0ab36ca8 | 629 | if (!FcFontSetAdd (fs, node->pattern)) |
6f6563ed KP |
630 | { |
631 | FcPatternDestroy (node->pattern); | |
216fac98 | 632 | return FcFalse; |
6f6563ed | 633 | } |
216fac98 | 634 | } |
216fac98 KP |
635 | } |
636 | } | |
216fac98 KP |
637 | return FcTrue; |
638 | } | |
639 | ||
1412a699 KP |
640 | void |
641 | FcFontSetSortDestroy (FcFontSet *fs) | |
642 | { | |
1412a699 KP |
643 | FcFontSetDestroy (fs); |
644 | } | |
645 | ||
216fac98 KP |
646 | FcFontSet * |
647 | FcFontSetSort (FcConfig *config, | |
648 | FcFontSet **sets, | |
649 | int nsets, | |
650 | FcPattern *p, | |
651 | FcBool trim, | |
652 | FcCharSet **csp, | |
653 | FcResult *result) | |
654 | { | |
655 | FcFontSet *ret; | |
656 | FcFontSet *s; | |
657 | FcSortNode *nodes; | |
0ab36ca8 | 658 | FcSortNode **nodeps, **nodep; |
216fac98 | 659 | int nnodes; |
216fac98 KP |
660 | FcSortNode *new; |
661 | FcCharSet *cs; | |
662 | int set; | |
663 | int f; | |
664 | int i; | |
5cf8c536 KP |
665 | int nPatternLang; |
666 | FcBool *patternLangSat; | |
667 | FcValue patternLang; | |
216fac98 | 668 | |
82f4243f KP |
669 | if (FcDebug () & FC_DBG_MATCH) |
670 | { | |
671 | printf ("Sort "); | |
672 | FcPatternPrint (p); | |
673 | } | |
216fac98 KP |
674 | nnodes = 0; |
675 | for (set = 0; set < nsets; set++) | |
676 | { | |
677 | s = sets[set]; | |
678 | if (!s) | |
679 | continue; | |
680 | nnodes += s->nfont; | |
681 | } | |
682 | if (!nnodes) | |
683 | goto bail0; | |
5cf8c536 KP |
684 | |
685 | for (nPatternLang = 0; | |
686 | FcPatternGet (p, FC_LANG, nPatternLang, &patternLang) == FcResultMatch; | |
687 | nPatternLang++) | |
688 | ; | |
689 | ||
9dac3c59 | 690 | /* freed below */ |
5cf8c536 KP |
691 | nodes = malloc (nnodes * sizeof (FcSortNode) + |
692 | nnodes * sizeof (FcSortNode *) + | |
693 | nPatternLang * sizeof (FcBool)); | |
216fac98 KP |
694 | if (!nodes) |
695 | goto bail0; | |
1412a699 | 696 | nodeps = (FcSortNode **) (nodes + nnodes); |
5cf8c536 | 697 | patternLangSat = (FcBool *) (nodeps + nnodes); |
216fac98 | 698 | |
216fac98 | 699 | new = nodes; |
0ab36ca8 | 700 | nodep = nodeps; |
216fac98 KP |
701 | for (set = 0; set < nsets; set++) |
702 | { | |
703 | s = sets[set]; | |
704 | if (!s) | |
705 | continue; | |
706 | for (f = 0; f < s->nfont; f++) | |
707 | { | |
708 | if (FcDebug () & FC_DBG_MATCHV) | |
709 | { | |
710 | printf ("Font %d ", f); | |
711 | FcPatternPrint (s->fonts[f]); | |
712 | } | |
713 | new->pattern = s->fonts[f]; | |
714 | if (!FcCompare (p, new->pattern, new->score, result)) | |
715 | goto bail1; | |
716 | if (FcDebug () & FC_DBG_MATCHV) | |
717 | { | |
718 | printf ("Score"); | |
4c003605 | 719 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
216fac98 KP |
720 | { |
721 | printf (" %g", new->score[i]); | |
722 | } | |
723 | printf ("\n"); | |
724 | } | |
0ab36ca8 | 725 | *nodep = new; |
216fac98 | 726 | new++; |
0ab36ca8 | 727 | nodep++; |
216fac98 KP |
728 | } |
729 | } | |
730 | ||
0ab36ca8 KP |
731 | nnodes = new - nodes; |
732 | ||
1412a699 | 733 | qsort (nodeps, nnodes, sizeof (FcSortNode *), |
0ab36ca8 | 734 | FcSortCompare); |
5cf8c536 KP |
735 | |
736 | for (i = 0; i < nPatternLang; i++) | |
737 | patternLangSat[i] = FcFalse; | |
738 | ||
739 | for (f = 0; f < nnodes; f++) | |
740 | { | |
741 | FcBool satisfies = FcFalse; | |
742 | /* | |
743 | * If this node matches any language, go check | |
744 | * which ones and satisfy those entries | |
745 | */ | |
746 | if (nodeps[f]->score[MATCH_LANG_INDEX] < nPatternLang) | |
747 | { | |
748 | for (i = 0; i < nPatternLang; i++) | |
749 | { | |
750 | FcValue nodeLang; | |
751 | ||
752 | if (!patternLangSat[i] && | |
753 | FcPatternGet (p, FC_LANG, i, &patternLang) == FcResultMatch && | |
754 | FcPatternGet (nodeps[f]->pattern, FC_LANG, 0, &nodeLang) == FcResultMatch) | |
755 | { | |
9ab79bdf | 756 | double compare = FcCompareLang (&patternLang, &nodeLang); |
5cf8c536 KP |
757 | if (compare >= 0 && compare < 2) |
758 | { | |
759 | if (FcDebug () & FC_DBG_MATCHV) | |
760 | { | |
761 | FcChar8 *family; | |
762 | FcChar8 *style; | |
763 | ||
764 | if (FcPatternGetString (nodeps[f]->pattern, FC_FAMILY, 0, &family) == FcResultMatch && | |
765 | FcPatternGetString (nodeps[f]->pattern, FC_STYLE, 0, &style) == FcResultMatch) | |
766 | printf ("Font %s:%s matches language %d\n", family, style, i); | |
767 | } | |
768 | patternLangSat[i] = FcTrue; | |
769 | satisfies = FcTrue; | |
770 | break; | |
771 | } | |
772 | } | |
773 | } | |
774 | } | |
775 | if (!satisfies) | |
776 | nodeps[f]->score[MATCH_LANG_INDEX] = 1000.0; | |
777 | } | |
778 | ||
779 | /* | |
780 | * Re-sort once the language issues have been settled | |
781 | */ | |
782 | qsort (nodeps, nnodes, sizeof (FcSortNode *), | |
783 | FcSortCompare); | |
0ab36ca8 | 784 | |
216fac98 KP |
785 | ret = FcFontSetCreate (); |
786 | if (!ret) | |
787 | goto bail1; | |
788 | ||
789 | cs = 0; | |
790 | ||
0ab36ca8 | 791 | if (!FcSortWalk (nodeps, nnodes, ret, &cs, trim)) |
216fac98 KP |
792 | goto bail2; |
793 | ||
d0f07b8d KP |
794 | if (csp) |
795 | *csp = cs; | |
796 | else | |
797 | FcCharSetDestroy (cs); | |
216fac98 | 798 | |
1412a699 KP |
799 | free (nodes); |
800 | ||
216fac98 KP |
801 | return ret; |
802 | ||
803 | bail2: | |
804 | if (cs) | |
805 | FcCharSetDestroy (cs); | |
806 | FcFontSetDestroy (ret); | |
807 | bail1: | |
808 | free (nodes); | |
809 | bail0: | |
810 | return 0; | |
811 | } | |
20ac65ab KP |
812 | |
813 | FcFontSet * | |
814 | FcFontSort (FcConfig *config, | |
815 | FcPattern *p, | |
816 | FcBool trim, | |
817 | FcCharSet **csp, | |
818 | FcResult *result) | |
819 | { | |
820 | FcFontSet *sets[2]; | |
821 | int nsets; | |
822 | ||
823 | if (!config) | |
824 | { | |
825 | config = FcConfigGetCurrent (); | |
826 | if (!config) | |
827 | return 0; | |
828 | } | |
829 | nsets = 0; | |
830 | if (config->fonts[FcSetSystem]) | |
831 | sets[nsets++] = config->fonts[FcSetSystem]; | |
832 | if (config->fonts[FcSetApplication]) | |
833 | sets[nsets++] = config->fonts[FcSetApplication]; | |
834 | return FcFontSetSort (config, sets, nsets, p, trim, csp, result); | |
835 | } |