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| 1 /* | 1 /* |
| 2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "SkFontHost.h" | 8 #include "SkFontHost.h" |
| 9 #include "SkFontHost_FreeType_common.h" | 9 #include "SkFontHost_FreeType_common.h" |
| 10 #include "SkFontDescriptor.h" | 10 #include "SkFontDescriptor.h" |
| (...skipping 24 matching lines...) Expand all Loading... |
| 35 bool sysFont, const SkString familyName, int index) | 35 bool sysFont, const SkString familyName, int index) |
| 36 : INHERITED(style, SkTypefaceCache::NewFontID(), isFixedPitch) | 36 : INHERITED(style, SkTypefaceCache::NewFontID(), isFixedPitch) |
| 37 , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) | 37 , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) |
| 38 { } | 38 { } |
| 39 | 39 |
| 40 bool isSysFont() const { return fIsSysFont; } | 40 bool isSysFont() const { return fIsSysFont; } |
| 41 | 41 |
| 42 virtual const char* getUniqueString() const = 0; | 42 virtual const char* getUniqueString() const = 0; |
| 43 | 43 |
| 44 protected: | 44 protected: |
| 45 virtual void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { | 45 void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { |
| 46 *familyName = fFamilyName; | 46 *familyName = fFamilyName; |
| 47 } | 47 } |
| 48 | 48 |
| 49 virtual void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) cons
t SK_OVERRIDE { | 49 void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const SK_OVE
RRIDE { |
| 50 desc->setFamilyName(fFamilyName.c_str()); | 50 desc->setFamilyName(fFamilyName.c_str()); |
| 51 desc->setFontFileName(this->getUniqueString()); | 51 desc->setFontFileName(this->getUniqueString()); |
| 52 desc->setFontIndex(fIndex); | 52 desc->setFontIndex(fIndex); |
| 53 *isLocal = !this->isSysFont(); | 53 *isLocal = !this->isSysFont(); |
| 54 } | 54 } |
| 55 | 55 |
| 56 int getIndex() const { return fIndex; } | 56 int getIndex() const { return fIndex; } |
| 57 | 57 |
| 58 private: | 58 private: |
| 59 const bool fIsSysFont; | 59 const bool fIsSysFont; |
| 60 const SkString fFamilyName; | 60 const SkString fFamilyName; |
| 61 const int fIndex; | 61 const int fIndex; |
| 62 | 62 |
| 63 typedef SkTypeface_FreeType INHERITED; | 63 typedef SkTypeface_FreeType INHERITED; |
| 64 }; | 64 }; |
| 65 | 65 |
| 66 /** The empty SkTypeface implementation for the custom font manager. | 66 /** The empty SkTypeface implementation for the custom font manager. |
| 67 * Used as the last resort fallback typeface. | 67 * Used as the last resort fallback typeface. |
| 68 */ | 68 */ |
| 69 class SkTypeface_Empty : public SkTypeface_Custom { | 69 class SkTypeface_Empty : public SkTypeface_Custom { |
| 70 public: | 70 public: |
| 71 SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} | 71 SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} |
| 72 | 72 |
| 73 virtual const char* getUniqueString() const SK_OVERRIDE { return NULL; } | 73 const char* getUniqueString() const SK_OVERRIDE { return NULL; } |
| 74 | 74 |
| 75 protected: | 75 protected: |
| 76 virtual SkStream* onOpenStream(int*) const SK_OVERRIDE { return NULL; } | 76 SkStream* onOpenStream(int*) const SK_OVERRIDE { return NULL; } |
| 77 | 77 |
| 78 private: | 78 private: |
| 79 typedef SkTypeface_Custom INHERITED; | 79 typedef SkTypeface_Custom INHERITED; |
| 80 }; | 80 }; |
| 81 | 81 |
| 82 /** The stream SkTypeface implementation for the custom font manager. */ | 82 /** The stream SkTypeface implementation for the custom font manager. */ |
| 83 class SkTypeface_Stream : public SkTypeface_Custom { | 83 class SkTypeface_Stream : public SkTypeface_Custom { |
| 84 public: | 84 public: |
| 85 SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont, | 85 SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
| 86 const SkString familyName, SkStream* stream, int index) | 86 const SkString familyName, SkStream* stream, int index) |
| 87 : INHERITED(style, isFixedPitch, sysFont, familyName, index) | 87 : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
| 88 , fStream(SkRef(stream)) | 88 , fStream(SkRef(stream)) |
| 89 { } | 89 { } |
| 90 | 90 |
| 91 virtual const char* getUniqueString() const SK_OVERRIDE { return NULL; } | 91 const char* getUniqueString() const SK_OVERRIDE { return NULL; } |
| 92 | 92 |
| 93 protected: | 93 protected: |
| 94 virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { | 94 SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { |
| 95 *ttcIndex = this->getIndex(); | 95 *ttcIndex = this->getIndex(); |
| 96 return fStream->duplicate(); | 96 return fStream->duplicate(); |
| 97 } | 97 } |
| 98 | 98 |
| 99 private: | 99 private: |
| 100 const SkAutoTUnref<const SkStream> fStream; | 100 const SkAutoTUnref<const SkStream> fStream; |
| 101 | 101 |
| 102 typedef SkTypeface_Custom INHERITED; | 102 typedef SkTypeface_Custom INHERITED; |
| 103 }; | 103 }; |
| 104 | 104 |
| 105 // This configuration option is useful if we need to open and hold handles to | 105 // This configuration option is useful if we need to open and hold handles to |
| 106 // all found system font data (e.g., for skfiddle, where the application can't | 106 // all found system font data (e.g., for skfiddle, where the application can't |
| 107 // access the filesystem to read fonts on demand) | 107 // access the filesystem to read fonts on demand) |
| 108 | 108 |
| 109 SK_CONF_DECLARE(bool, c_CustomTypefaceRetain, "fonts.customFont.retainAllData",
false, | 109 SK_CONF_DECLARE(bool, c_CustomTypefaceRetain, "fonts.customFont.retainAllData",
false, |
| 110 "Retain the open stream for each found font on the system."); | 110 "Retain the open stream for each found font on the system."); |
| 111 | 111 |
| 112 /** The file SkTypeface implementation for the custom font manager. */ | 112 /** The file SkTypeface implementation for the custom font manager. */ |
| 113 class SkTypeface_File : public SkTypeface_Custom { | 113 class SkTypeface_File : public SkTypeface_Custom { |
| 114 public: | 114 public: |
| 115 SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, | 115 SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
| 116 const SkString familyName, const char path[], int index) | 116 const SkString familyName, const char path[], int index) |
| 117 : INHERITED(style, isFixedPitch, sysFont, familyName, index) | 117 : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
| 118 , fPath(path) | 118 , fPath(path) |
| 119 , fStream(c_CustomTypefaceRetain ? SkStream::NewFromFile(fPath.c_str())
: NULL) | 119 , fStream(c_CustomTypefaceRetain ? SkStream::NewFromFile(fPath.c_str())
: NULL) |
| 120 { } | 120 { } |
| 121 | 121 |
| 122 virtual const char* getUniqueString() const SK_OVERRIDE { | 122 const char* getUniqueString() const SK_OVERRIDE { |
| 123 const char* str = strrchr(fPath.c_str(), '/'); | 123 const char* str = strrchr(fPath.c_str(), '/'); |
| 124 if (str) { | 124 if (str) { |
| 125 str += 1; // skip the '/' | 125 str += 1; // skip the '/' |
| 126 } | 126 } |
| 127 return str; | 127 return str; |
| 128 } | 128 } |
| 129 | 129 |
| 130 protected: | 130 protected: |
| 131 virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { | 131 SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { |
| 132 *ttcIndex = this->getIndex(); | 132 *ttcIndex = this->getIndex(); |
| 133 if (fStream.get()) { | 133 if (fStream.get()) { |
| 134 return fStream->duplicate(); | 134 return fStream->duplicate(); |
| 135 } else { | 135 } else { |
| 136 return SkStream::NewFromFile(fPath.c_str()); | 136 return SkStream::NewFromFile(fPath.c_str()); |
| 137 } | 137 } |
| 138 } | 138 } |
| 139 | 139 |
| 140 private: | 140 private: |
| 141 SkString fPath; | 141 SkString fPath; |
| 142 const SkAutoTUnref<SkStreamAsset> fStream; | 142 const SkAutoTUnref<SkStreamAsset> fStream; |
| 143 | 143 |
| 144 typedef SkTypeface_Custom INHERITED; | 144 typedef SkTypeface_Custom INHERITED; |
| 145 }; | 145 }; |
| 146 | 146 |
| 147 /////////////////////////////////////////////////////////////////////////////// | 147 /////////////////////////////////////////////////////////////////////////////// |
| 148 | 148 |
| 149 /** | 149 /** |
| 150 * SkFontStyleSet_Custom | 150 * SkFontStyleSet_Custom |
| 151 * | 151 * |
| 152 * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. | 152 * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. |
| 153 */ | 153 */ |
| 154 class SkFontStyleSet_Custom : public SkFontStyleSet { | 154 class SkFontStyleSet_Custom : public SkFontStyleSet { |
| 155 public: | 155 public: |
| 156 explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(fami
lyName) { } | 156 explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(fami
lyName) { } |
| 157 | 157 |
| 158 virtual int count() SK_OVERRIDE { | 158 int count() SK_OVERRIDE { |
| 159 return fStyles.count(); | 159 return fStyles.count(); |
| 160 } | 160 } |
| 161 | 161 |
| 162 virtual void getStyle(int index, SkFontStyle* style, SkString* name) SK_OVER
RIDE { | 162 void getStyle(int index, SkFontStyle* style, SkString* name) SK_OVERRIDE { |
| 163 SkASSERT(index < fStyles.count()); | 163 SkASSERT(index < fStyles.count()); |
| 164 bool bold = fStyles[index]->isBold(); | 164 bool bold = fStyles[index]->isBold(); |
| 165 bool italic = fStyles[index]->isItalic(); | 165 bool italic = fStyles[index]->isItalic(); |
| 166 *style = SkFontStyle(bold ? SkFontStyle::kBold_Weight : SkFontStyle::kNo
rmal_Weight, | 166 *style = SkFontStyle(bold ? SkFontStyle::kBold_Weight : SkFontStyle::kNo
rmal_Weight, |
| 167 SkFontStyle::kNormal_Width, | 167 SkFontStyle::kNormal_Width, |
| 168 italic ? SkFontStyle::kItalic_Slant : SkFontStyle::
kUpright_Slant); | 168 italic ? SkFontStyle::kItalic_Slant : SkFontStyle::
kUpright_Slant); |
| 169 name->reset(); | 169 name->reset(); |
| 170 } | 170 } |
| 171 | 171 |
| 172 virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { | 172 SkTypeface* createTypeface(int index) SK_OVERRIDE { |
| 173 SkASSERT(index < fStyles.count()); | 173 SkASSERT(index < fStyles.count()); |
| 174 return SkRef(fStyles[index].get()); | 174 return SkRef(fStyles[index].get()); |
| 175 } | 175 } |
| 176 | 176 |
| 177 static int match_score(const SkFontStyle& pattern, const SkFontStyle& candid
ate) { | 177 static int match_score(const SkFontStyle& pattern, const SkFontStyle& candid
ate) { |
| 178 int score = 0; | 178 int score = 0; |
| 179 score += (pattern.width() - candidate.width()) * 100; | 179 score += (pattern.width() - candidate.width()) * 100; |
| 180 score += (pattern.isItalic() == candidate.isItalic()) ? 0 : 1000; | 180 score += (pattern.isItalic() == candidate.isItalic()) ? 0 : 1000; |
| 181 score += pattern.weight() - candidate.weight(); | 181 score += pattern.weight() - candidate.weight(); |
| 182 return score; | 182 return score; |
| 183 } | 183 } |
| 184 | 184 |
| 185 virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { | 185 SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { |
| 186 if (0 == fStyles.count()) { | 186 if (0 == fStyles.count()) { |
| 187 return NULL; | 187 return NULL; |
| 188 } | 188 } |
| 189 | 189 |
| 190 SkTypeface_Custom* closest = fStyles[0]; | 190 SkTypeface_Custom* closest = fStyles[0]; |
| 191 int minScore = std::numeric_limits<int>::max(); | 191 int minScore = std::numeric_limits<int>::max(); |
| 192 for (int i = 0; i < fStyles.count(); ++i) { | 192 for (int i = 0; i < fStyles.count(); ++i) { |
| 193 bool bold = fStyles[i]->isBold(); | 193 bool bold = fStyles[i]->isBold(); |
| 194 bool italic = fStyles[i]->isItalic(); | 194 bool italic = fStyles[i]->isItalic(); |
| 195 SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight | 195 SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight |
| (...skipping 29 matching lines...) Expand all Loading... |
| 225 * one SkFontStyleSet_Custom for each family. This class may be modified | 225 * one SkFontStyleSet_Custom for each family. This class may be modified |
| 226 * to load fonts from any source by changing the initialization. | 226 * to load fonts from any source by changing the initialization. |
| 227 */ | 227 */ |
| 228 class SkFontMgr_Custom : public SkFontMgr { | 228 class SkFontMgr_Custom : public SkFontMgr { |
| 229 public: | 229 public: |
| 230 explicit SkFontMgr_Custom(const char* dir) { | 230 explicit SkFontMgr_Custom(const char* dir) { |
| 231 this->load_system_fonts(dir); | 231 this->load_system_fonts(dir); |
| 232 } | 232 } |
| 233 | 233 |
| 234 protected: | 234 protected: |
| 235 virtual int onCountFamilies() const SK_OVERRIDE { | 235 int onCountFamilies() const SK_OVERRIDE { |
| 236 return fFamilies.count(); | 236 return fFamilies.count(); |
| 237 } | 237 } |
| 238 | 238 |
| 239 virtual void onGetFamilyName(int index, SkString* familyName) const SK_OVERR
IDE { | 239 void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE { |
| 240 SkASSERT(index < fFamilies.count()); | 240 SkASSERT(index < fFamilies.count()); |
| 241 familyName->set(fFamilies[index]->fFamilyName); | 241 familyName->set(fFamilies[index]->fFamilyName); |
| 242 } | 242 } |
| 243 | 243 |
| 244 virtual SkFontStyleSet_Custom* onCreateStyleSet(int index) const SK_OVERRIDE
{ | 244 SkFontStyleSet_Custom* onCreateStyleSet(int index) const SK_OVERRIDE { |
| 245 SkASSERT(index < fFamilies.count()); | 245 SkASSERT(index < fFamilies.count()); |
| 246 return SkRef(fFamilies[index].get()); | 246 return SkRef(fFamilies[index].get()); |
| 247 } | 247 } |
| 248 | 248 |
| 249 virtual SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const
SK_OVERRIDE { | 249 SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const SK_OVERR
IDE { |
| 250 for (int i = 0; i < fFamilies.count(); ++i) { | 250 for (int i = 0; i < fFamilies.count(); ++i) { |
| 251 if (fFamilies[i]->fFamilyName.equals(familyName)) { | 251 if (fFamilies[i]->fFamilyName.equals(familyName)) { |
| 252 return SkRef(fFamilies[i].get()); | 252 return SkRef(fFamilies[i].get()); |
| 253 } | 253 } |
| 254 } | 254 } |
| 255 return NULL; | 255 return NULL; |
| 256 } | 256 } |
| 257 | 257 |
| 258 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], | 258 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], |
| 259 const SkFontStyle& fontStyle) const S
K_OVERRIDE | 259 const SkFontStyle& fontStyle) const S
K_OVERRIDE |
| (...skipping 15 matching lines...) Expand all Loading... |
| 275 for (int i = 0; i < fFamilies.count(); ++i) { | 275 for (int i = 0; i < fFamilies.count(); ++i) { |
| 276 for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { | 276 for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { |
| 277 if (fFamilies[i]->fStyles[j] == familyMember) { | 277 if (fFamilies[i]->fStyles[j] == familyMember) { |
| 278 return fFamilies[i]->matchStyle(fontStyle); | 278 return fFamilies[i]->matchStyle(fontStyle); |
| 279 } | 279 } |
| 280 } | 280 } |
| 281 } | 281 } |
| 282 return NULL; | 282 return NULL; |
| 283 } | 283 } |
| 284 | 284 |
| 285 virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OV
ERRIDE { | 285 SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OVERRIDE { |
| 286 SkAutoTUnref<SkStream> stream(new SkMemoryStream(data)); | 286 SkAutoTUnref<SkStream> stream(new SkMemoryStream(data)); |
| 287 return this->createFromStream(stream, ttcIndex); | 287 return this->createFromStream(stream, ttcIndex); |
| 288 } | 288 } |
| 289 | 289 |
| 290 virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) const
SK_OVERRIDE { | 290 SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) const SK_OVER
RIDE { |
| 291 if (NULL == stream || stream->getLength() <= 0) { | 291 if (NULL == stream || stream->getLength() <= 0) { |
| 292 SkDELETE(stream); | 292 SkDELETE(stream); |
| 293 return NULL; | 293 return NULL; |
| 294 } | 294 } |
| 295 | 295 |
| 296 bool isFixedPitch; | 296 bool isFixedPitch; |
| 297 SkFontStyle style; | 297 SkFontStyle style; |
| 298 SkString name; | 298 SkString name; |
| 299 if (fScanner.scanFont(stream, ttcIndex, &name, &style, &isFixedPitch)) { | 299 if (fScanner.scanFont(stream, ttcIndex, &name, &style, &isFixedPitch)) { |
| 300 return SkNEW_ARGS(SkTypeface_Stream, (style, isFixedPitch, false, na
me, | 300 return SkNEW_ARGS(SkTypeface_Stream, (style, isFixedPitch, false, na
me, |
| 301 stream, ttcIndex)); | 301 stream, ttcIndex)); |
| 302 } else { | 302 } else { |
| 303 return NULL; | 303 return NULL; |
| 304 } | 304 } |
| 305 } | 305 } |
| 306 | 306 |
| 307 virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const
SK_OVERRIDE { | 307 SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const SK_OVERR
IDE { |
| 308 SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); | 308 SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); |
| 309 return stream.get() ? this->createFromStream(stream, ttcIndex) : NULL; | 309 return stream.get() ? this->createFromStream(stream, ttcIndex) : NULL; |
| 310 } | 310 } |
| 311 | 311 |
| 312 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], | 312 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], |
| 313 unsigned styleBits) const SK_OVER
RIDE | 313 unsigned styleBits) const SK_OVER
RIDE |
| 314 { | 314 { |
| 315 SkTypeface::Style oldStyle = (SkTypeface::Style)styleBits; | 315 SkTypeface::Style oldStyle = (SkTypeface::Style)styleBits; |
| 316 SkFontStyle style = SkFontStyle(oldStyle & SkTypeface::kBold | 316 SkFontStyle style = SkFontStyle(oldStyle & SkTypeface::kBold |
| 317 ? SkFontStyle::kBold_Weight | 317 ? SkFontStyle::kBold_Weight |
| (...skipping 113 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 431 | 431 |
| 432 SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> fFamilies; | 432 SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> fFamilies; |
| 433 SkFontStyleSet_Custom* gDefaultFamily; | 433 SkFontStyleSet_Custom* gDefaultFamily; |
| 434 SkTypeface* gDefaultNormal; | 434 SkTypeface* gDefaultNormal; |
| 435 SkTypeface_FreeType::Scanner fScanner; | 435 SkTypeface_FreeType::Scanner fScanner; |
| 436 }; | 436 }; |
| 437 | 437 |
| 438 SkFontMgr* SkFontMgr::Factory() { | 438 SkFontMgr* SkFontMgr::Factory() { |
| 439 return new SkFontMgr_Custom(SK_FONT_FILE_PREFIX); | 439 return new SkFontMgr_Custom(SK_FONT_FILE_PREFIX); |
| 440 } | 440 } |
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