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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2013 The Android Open Source Project | 3 * Copyright 2013 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "SkFontConfigInterface.h" | 9 #include "SkFontConfigInterface.h" |
10 #include "SkTypeface_android.h" | 10 #include "SkTypeface_android.h" |
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60 }; | 60 }; |
61 | 61 |
62 struct FamilyRec { | 62 struct FamilyRec { |
63 FamilyRec() { | 63 FamilyRec() { |
64 memset(fFontRecID, INVALID_FONT_REC_ID, sizeof(fFontRecID)); | 64 memset(fFontRecID, INVALID_FONT_REC_ID, sizeof(fFontRecID)); |
65 } | 65 } |
66 | 66 |
67 static const int FONT_STYLE_COUNT = 4; | 67 static const int FONT_STYLE_COUNT = 4; |
68 FontRecID fFontRecID[FONT_STYLE_COUNT]; | 68 FontRecID fFontRecID[FONT_STYLE_COUNT]; |
69 bool fIsFallbackFont; | 69 bool fIsFallbackFont; |
| 70 SkString fFallbackName; |
70 SkPaintOptionsAndroid fPaintOptions; | 71 SkPaintOptionsAndroid fPaintOptions; |
71 }; | 72 }; |
72 | 73 |
73 | 74 |
74 typedef SkTDArray<FamilyRecID> FallbackFontList; | 75 typedef SkTDArray<FamilyRecID> FallbackFontList; |
75 | 76 |
76 class SkFontConfigInterfaceAndroid : public SkFontConfigInterface { | 77 class SkFontConfigInterfaceAndroid : public SkFontConfigInterface { |
77 public: | 78 public: |
78 SkFontConfigInterfaceAndroid(SkTDArray<FontFamily*>& fontFamilies); | 79 SkFontConfigInterfaceAndroid(SkTDArray<FontFamily*>& fontFamilies); |
79 virtual ~SkFontConfigInterfaceAndroid(); | 80 virtual ~SkFontConfigInterfaceAndroid(); |
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256 // create a familyRec now that we know that at least one font in | 257 // create a familyRec now that we know that at least one font in |
257 // the family is valid | 258 // the family is valid |
258 if (familyRec == NULL) { | 259 if (familyRec == NULL) { |
259 familyRec = &fFontFamilies.push_back(); | 260 familyRec = &fFontFamilies.push_back(); |
260 familyRecID = fFontFamilies.count() - 1; | 261 familyRecID = fFontFamilies.count() - 1; |
261 fontRec.fFamilyRecID = familyRecID; | 262 fontRec.fFamilyRecID = familyRecID; |
262 | 263 |
263 familyRec->fIsFallbackFont = family->fIsFallbackFont; | 264 familyRec->fIsFallbackFont = family->fIsFallbackFont; |
264 familyRec->fPaintOptions = family->fFontFiles[j]->fPaintOptions; | 265 familyRec->fPaintOptions = family->fFontFiles[j]->fPaintOptions; |
265 | 266 |
266 // if this is a fallback font then add it to the appropriate fal
lback chains | |
267 if (familyRec->fIsFallbackFont) { | |
268 addFallbackFamily(familyRecID); | |
269 } | |
270 } else if (familyRec->fPaintOptions != family->fFontFiles[j]->fPaint
Options) { | 267 } else if (familyRec->fPaintOptions != family->fFontFiles[j]->fPaint
Options) { |
271 SkDebugf("Every font file within a family must have identical" | 268 SkDebugf("Every font file within a family must have identical" |
272 "language and variant attributes"); | 269 "language and variant attributes"); |
273 sk_throw(); | 270 sk_throw(); |
274 } | 271 } |
275 | 272 |
276 // add this font to the current familyRec | 273 // add this font to the current familyRec |
277 if (INVALID_FONT_REC_ID != familyRec->fFontRecID[fontRec.fStyle]) { | 274 if (INVALID_FONT_REC_ID != familyRec->fFontRecID[fontRec.fStyle]) { |
278 DEBUG_FONT(("Overwriting familyRec for style[%d] old,new:(%d,%d)
", | 275 DEBUG_FONT(("Overwriting familyRec for style[%d] old,new:(%d,%d)
", |
279 fontRec.fStyle, familyRec->fFontRecID[fontRec.fStyle
], | 276 fontRec.fStyle, familyRec->fFontRecID[fontRec.fStyle
], |
280 fontRecID)); | 277 fontRecID)); |
281 } | 278 } |
282 familyRec->fFontRecID[fontRec.fStyle] = fontRecID; | 279 familyRec->fFontRecID[fontRec.fStyle] = fontRecID; |
| 280 } |
283 | 281 |
284 // add the fallback file name to the name dictionary. This is neede
d | 282 if (familyRec) { |
285 // by getFallbackFamilyNameForChar() so that fallback families can b
e | 283 if (familyRec->fIsFallbackFont) { |
286 // requested by the filenames of the fonts they contain. | 284 // add the font to the appropriate fallback chains and also inse
rt a |
287 if (familyRec && familyRec->fIsFallbackFont) { | 285 // unique name into the familyNameDict for internal usage |
288 insert_into_name_dict(fFamilyNameDict, fontRec.fFileName.c_str()
, familyRecID); | 286 addFallbackFamily(familyRecID); |
| 287 } else { |
| 288 // add the names that map to this family to the dictionary for e
asy lookup |
| 289 const SkTDArray<const char*>& names = family->fNames; |
| 290 if (names.isEmpty()) { |
| 291 SkDEBUGFAIL("ERROR: non-fallback font with no name"); |
| 292 continue; |
| 293 } |
| 294 |
| 295 for (int i = 0; i < names.count(); i++) { |
| 296 insert_into_name_dict(fFamilyNameDict, names[i], familyRecID
); |
| 297 } |
289 } | 298 } |
290 } | 299 } |
291 | |
292 // add the names that map to this family to the dictionary for easy look
up | |
293 if (familyRec && !familyRec->fIsFallbackFont) { | |
294 SkTDArray<const char*> names = family->fNames; | |
295 if (names.isEmpty()) { | |
296 SkDEBUGFAIL("ERROR: non-fallback font with no name"); | |
297 continue; | |
298 } | |
299 | |
300 for (int i = 0; i < names.count(); i++) { | |
301 insert_into_name_dict(fFamilyNameDict, names[i], familyRecID); | |
302 } | |
303 } | |
304 | |
305 } | 300 } |
306 | 301 |
307 DEBUG_FONT(("---- We have %d system fonts", fFonts.count())); | 302 DEBUG_FONT(("---- We have %d system fonts", fFonts.count())); |
308 | 303 |
309 if (fFontFamilies.count() > 0) { | 304 if (fFontFamilies.count() > 0) { |
310 fDefaultFamilyRecID = 0; | 305 fDefaultFamilyRecID = 0; |
311 } | 306 } |
312 | 307 |
313 // scans the default fallback font chain, adding every entry to every other | 308 // scans the default fallback font chain, adding every entry to every other |
314 // fallback font chain to which it does not belong. this results in every | 309 // fallback font chain to which it does not belong. this results in every |
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334 // iterate through and cleanup fFallbackFontDict | 329 // iterate through and cleanup fFallbackFontDict |
335 SkTDict<FallbackFontList*>::Iter iter(fFallbackFontDict); | 330 SkTDict<FallbackFontList*>::Iter iter(fFallbackFontDict); |
336 FallbackFontList* fallbackList; | 331 FallbackFontList* fallbackList; |
337 while(iter.next(&fallbackList) != NULL) { | 332 while(iter.next(&fallbackList) != NULL) { |
338 SkDELETE(fallbackList); | 333 SkDELETE(fallbackList); |
339 } | 334 } |
340 } | 335 } |
341 | 336 |
342 void SkFontConfigInterfaceAndroid::addFallbackFamily(FamilyRecID familyRecID) { | 337 void SkFontConfigInterfaceAndroid::addFallbackFamily(FamilyRecID familyRecID) { |
343 SkASSERT(familyRecID < fFontFamilies.count()); | 338 SkASSERT(familyRecID < fFontFamilies.count()); |
344 const FamilyRec& familyRec = fFontFamilies[familyRecID]; | 339 FamilyRec& familyRec = fFontFamilies[familyRecID]; |
345 SkASSERT(familyRec.fIsFallbackFont); | 340 SkASSERT(familyRec.fIsFallbackFont); |
346 | 341 |
| 342 // add the fallback family to the name dictionary. This is |
| 343 // needed by getFallbackFamilyNameForChar() so that fallback |
| 344 // families can be identified by a unique name. The unique |
| 345 // identifier that we've chosen is the familyID in hex (e.g. '0F##fallback')
. |
| 346 familyRec.fFallbackName.printf("%.2x##fallback", familyRecID); |
| 347 insert_into_name_dict(fFamilyNameDict, familyRec.fFallbackName.c_str(), fami
lyRecID); |
| 348 |
347 // add to the default fallback list | 349 // add to the default fallback list |
348 fDefaultFallbackList.push(familyRecID); | 350 fDefaultFallbackList.push(familyRecID); |
349 | 351 |
350 // stop here if it is the default language tag | 352 // stop here if it is the default language tag |
351 const SkString& languageTag = familyRec.fPaintOptions.getLanguage().getTag()
; | 353 const SkString& languageTag = familyRec.fPaintOptions.getLanguage().getTag()
; |
352 if (languageTag.isEmpty()) { | 354 if (languageTag.isEmpty()) { |
353 return; | 355 return; |
354 } | 356 } |
355 | 357 |
356 // add to the appropriate language's custom fallback list | 358 // add to the appropriate language's custom fallback list |
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522 FontRecID fontRecID = find_best_style(fFontFamilies[familyRecID], SkType
face::kNormal); | 524 FontRecID fontRecID = find_best_style(fFontFamilies[familyRecID], SkType
face::kNormal); |
523 SkTypeface* face = this->getTypefaceForFontRec(fontRecID); | 525 SkTypeface* face = this->getTypefaceForFontRec(fontRecID); |
524 | 526 |
525 SkPaint paint; | 527 SkPaint paint; |
526 paint.setTypeface(face); | 528 paint.setTypeface(face); |
527 paint.setTextEncoding(SkPaint::kUTF32_TextEncoding); | 529 paint.setTextEncoding(SkPaint::kUTF32_TextEncoding); |
528 | 530 |
529 uint16_t glyphID; | 531 uint16_t glyphID; |
530 paint.textToGlyphs(&uni, sizeof(uni), &glyphID); | 532 paint.textToGlyphs(&uni, sizeof(uni), &glyphID); |
531 if (glyphID != 0) { | 533 if (glyphID != 0) { |
532 name->set(fFonts[fontRecID].fFileName); | 534 name->set(fFontFamilies[familyRecID].fFallbackName); |
533 return true; | 535 return true; |
534 } | 536 } |
535 } | 537 } |
536 return false; | 538 return false; |
537 } | 539 } |
538 | 540 |
539 SkTypeface* SkFontConfigInterfaceAndroid::getTypefaceForChar(SkUnichar uni, | 541 SkTypeface* SkFontConfigInterfaceAndroid::getTypefaceForChar(SkUnichar uni, |
540 SkTypeface::Style s
tyle, | 542 SkTypeface::Style s
tyle, |
541 SkPaintOptionsAndro
id::FontVariant fontVariant) { | 543 SkPaintOptionsAndro
id::FontVariant fontVariant) { |
542 FontRecID fontRecID = find_best_style(fFontFamilies[fDefaultFamilyRecID], st
yle); | 544 FontRecID fontRecID = find_best_style(fFontFamilies[fDefaultFamilyRecID], st
yle); |
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851 return SkCreateTypefaceForScriptNG(getHBScriptFromHBScriptOld(script), style
, fontVariant); | 853 return SkCreateTypefaceForScriptNG(getHBScriptFromHBScriptOld(script), style
, fontVariant); |
852 } | 854 } |
853 | 855 |
854 #endif | 856 #endif |
855 | 857 |
856 /////////////////////////////////////////////////////////////////////////////// | 858 /////////////////////////////////////////////////////////////////////////////// |
857 | 859 |
858 SkFontMgr* SkFontMgr::Factory() { | 860 SkFontMgr* SkFontMgr::Factory() { |
859 return NULL; | 861 return NULL; |
860 } | 862 } |
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