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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_FreeType_common.h" | 8 #include "SkFontHost_FreeType_common.h" |
9 #include "SkFontDescriptor.h" | 9 #include "SkFontDescriptor.h" |
10 #include "SkFontMgr.h" | 10 #include "SkFontMgr.h" |
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34 bool sysFont, const SkString familyName, int index) | 34 bool sysFont, const SkString familyName, int index) |
35 : INHERITED(style, SkTypefaceCache::NewFontID(), isFixedPitch) | 35 : INHERITED(style, SkTypefaceCache::NewFontID(), isFixedPitch) |
36 , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) | 36 , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) |
37 { } | 37 { } |
38 | 38 |
39 bool isSysFont() const { return fIsSysFont; } | 39 bool isSysFont() const { return fIsSysFont; } |
40 | 40 |
41 virtual const char* getUniqueString() const = 0; | 41 virtual const char* getUniqueString() const = 0; |
42 | 42 |
43 protected: | 43 protected: |
44 void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { | 44 void onGetFamilyName(SkString* familyName) const override { |
45 *familyName = fFamilyName; | 45 *familyName = fFamilyName; |
46 } | 46 } |
47 | 47 |
48 void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const SK_OVE
RRIDE { | 48 void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const overri
de { |
49 desc->setFamilyName(fFamilyName.c_str()); | 49 desc->setFamilyName(fFamilyName.c_str()); |
50 desc->setFontFileName(this->getUniqueString()); | 50 desc->setFontFileName(this->getUniqueString()); |
51 desc->setFontIndex(fIndex); | 51 desc->setFontIndex(fIndex); |
52 *isLocal = !this->isSysFont(); | 52 *isLocal = !this->isSysFont(); |
53 } | 53 } |
54 | 54 |
55 int getIndex() const { return fIndex; } | 55 int getIndex() const { return fIndex; } |
56 | 56 |
57 private: | 57 private: |
58 const bool fIsSysFont; | 58 const bool fIsSysFont; |
59 const SkString fFamilyName; | 59 const SkString fFamilyName; |
60 const int fIndex; | 60 const int fIndex; |
61 | 61 |
62 typedef SkTypeface_FreeType INHERITED; | 62 typedef SkTypeface_FreeType INHERITED; |
63 }; | 63 }; |
64 | 64 |
65 /** The empty SkTypeface implementation for the custom font manager. | 65 /** The empty SkTypeface implementation for the custom font manager. |
66 * Used as the last resort fallback typeface. | 66 * Used as the last resort fallback typeface. |
67 */ | 67 */ |
68 class SkTypeface_Empty : public SkTypeface_Custom { | 68 class SkTypeface_Empty : public SkTypeface_Custom { |
69 public: | 69 public: |
70 SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} | 70 SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} |
71 | 71 |
72 const char* getUniqueString() const SK_OVERRIDE { return NULL; } | 72 const char* getUniqueString() const override { return NULL; } |
73 | 73 |
74 protected: | 74 protected: |
75 SkStreamAsset* onOpenStream(int*) const SK_OVERRIDE { return NULL; } | 75 SkStreamAsset* onOpenStream(int*) const override { return NULL; } |
76 | 76 |
77 private: | 77 private: |
78 typedef SkTypeface_Custom INHERITED; | 78 typedef SkTypeface_Custom INHERITED; |
79 }; | 79 }; |
80 | 80 |
81 /** The stream SkTypeface implementation for the custom font manager. */ | 81 /** The stream SkTypeface implementation for the custom font manager. */ |
82 class SkTypeface_Stream : public SkTypeface_Custom { | 82 class SkTypeface_Stream : public SkTypeface_Custom { |
83 public: | 83 public: |
84 SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont, | 84 SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
85 const SkString familyName, SkStreamAsset* stream, int inde
x) | 85 const SkString familyName, SkStreamAsset* stream, int inde
x) |
86 : INHERITED(style, isFixedPitch, sysFont, familyName, index) | 86 : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
87 , fStream(stream) | 87 , fStream(stream) |
88 { } | 88 { } |
89 | 89 |
90 const char* getUniqueString() const SK_OVERRIDE { return NULL; } | 90 const char* getUniqueString() const override { return NULL; } |
91 | 91 |
92 protected: | 92 protected: |
93 SkStreamAsset* onOpenStream(int* ttcIndex) const SK_OVERRIDE { | 93 SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
94 *ttcIndex = this->getIndex(); | 94 *ttcIndex = this->getIndex(); |
95 return fStream->duplicate(); | 95 return fStream->duplicate(); |
96 } | 96 } |
97 | 97 |
98 private: | 98 private: |
99 const SkAutoTDelete<const SkStreamAsset> fStream; | 99 const SkAutoTDelete<const SkStreamAsset> fStream; |
100 | 100 |
101 typedef SkTypeface_Custom INHERITED; | 101 typedef SkTypeface_Custom INHERITED; |
102 }; | 102 }; |
103 | 103 |
104 // This configuration option is useful if we need to open and hold handles to | 104 // This configuration option is useful if we need to open and hold handles to |
105 // all found system font data (e.g., for skfiddle, where the application can't | 105 // all found system font data (e.g., for skfiddle, where the application can't |
106 // access the filesystem to read fonts on demand) | 106 // access the filesystem to read fonts on demand) |
107 | 107 |
108 SK_CONF_DECLARE(bool, c_CustomTypefaceRetain, "fonts.customFont.retainAllData",
false, | 108 SK_CONF_DECLARE(bool, c_CustomTypefaceRetain, "fonts.customFont.retainAllData",
false, |
109 "Retain the open stream for each found font on the system."); | 109 "Retain the open stream for each found font on the system."); |
110 | 110 |
111 /** The file SkTypeface implementation for the custom font manager. */ | 111 /** The file SkTypeface implementation for the custom font manager. */ |
112 class SkTypeface_File : public SkTypeface_Custom { | 112 class SkTypeface_File : public SkTypeface_Custom { |
113 public: | 113 public: |
114 SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, | 114 SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
115 const SkString familyName, const char path[], int index) | 115 const SkString familyName, const char path[], int index) |
116 : INHERITED(style, isFixedPitch, sysFont, familyName, index) | 116 : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
117 , fPath(path) | 117 , fPath(path) |
118 , fStream(c_CustomTypefaceRetain ? SkStream::NewFromFile(fPath.c_str())
: NULL) | 118 , fStream(c_CustomTypefaceRetain ? SkStream::NewFromFile(fPath.c_str())
: NULL) |
119 { } | 119 { } |
120 | 120 |
121 const char* getUniqueString() const SK_OVERRIDE { | 121 const char* getUniqueString() const override { |
122 const char* str = strrchr(fPath.c_str(), '/'); | 122 const char* str = strrchr(fPath.c_str(), '/'); |
123 if (str) { | 123 if (str) { |
124 str += 1; // skip the '/' | 124 str += 1; // skip the '/' |
125 } | 125 } |
126 return str; | 126 return str; |
127 } | 127 } |
128 | 128 |
129 protected: | 129 protected: |
130 SkStreamAsset* onOpenStream(int* ttcIndex) const SK_OVERRIDE { | 130 SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
131 *ttcIndex = this->getIndex(); | 131 *ttcIndex = this->getIndex(); |
132 if (fStream.get()) { | 132 if (fStream.get()) { |
133 return fStream->duplicate(); | 133 return fStream->duplicate(); |
134 } else { | 134 } else { |
135 return SkStream::NewFromFile(fPath.c_str()); | 135 return SkStream::NewFromFile(fPath.c_str()); |
136 } | 136 } |
137 } | 137 } |
138 | 138 |
139 private: | 139 private: |
140 SkString fPath; | 140 SkString fPath; |
141 const SkAutoTDelete<SkStreamAsset> fStream; | 141 const SkAutoTDelete<SkStreamAsset> fStream; |
142 | 142 |
143 typedef SkTypeface_Custom INHERITED; | 143 typedef SkTypeface_Custom INHERITED; |
144 }; | 144 }; |
145 | 145 |
146 /////////////////////////////////////////////////////////////////////////////// | 146 /////////////////////////////////////////////////////////////////////////////// |
147 | 147 |
148 /** | 148 /** |
149 * SkFontStyleSet_Custom | 149 * SkFontStyleSet_Custom |
150 * | 150 * |
151 * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. | 151 * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. |
152 */ | 152 */ |
153 class SkFontStyleSet_Custom : public SkFontStyleSet { | 153 class SkFontStyleSet_Custom : public SkFontStyleSet { |
154 public: | 154 public: |
155 explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(fami
lyName) { } | 155 explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(fami
lyName) { } |
156 | 156 |
157 int count() SK_OVERRIDE { | 157 int count() override { |
158 return fStyles.count(); | 158 return fStyles.count(); |
159 } | 159 } |
160 | 160 |
161 void getStyle(int index, SkFontStyle* style, SkString* name) SK_OVERRIDE { | 161 void getStyle(int index, SkFontStyle* style, SkString* name) override { |
162 SkASSERT(index < fStyles.count()); | 162 SkASSERT(index < fStyles.count()); |
163 bool bold = fStyles[index]->isBold(); | 163 bool bold = fStyles[index]->isBold(); |
164 bool italic = fStyles[index]->isItalic(); | 164 bool italic = fStyles[index]->isItalic(); |
165 *style = SkFontStyle(bold ? SkFontStyle::kBold_Weight : SkFontStyle::kNo
rmal_Weight, | 165 *style = SkFontStyle(bold ? SkFontStyle::kBold_Weight : SkFontStyle::kNo
rmal_Weight, |
166 SkFontStyle::kNormal_Width, | 166 SkFontStyle::kNormal_Width, |
167 italic ? SkFontStyle::kItalic_Slant : SkFontStyle::
kUpright_Slant); | 167 italic ? SkFontStyle::kItalic_Slant : SkFontStyle::
kUpright_Slant); |
168 name->reset(); | 168 name->reset(); |
169 } | 169 } |
170 | 170 |
171 SkTypeface* createTypeface(int index) SK_OVERRIDE { | 171 SkTypeface* createTypeface(int index) override { |
172 SkASSERT(index < fStyles.count()); | 172 SkASSERT(index < fStyles.count()); |
173 return SkRef(fStyles[index].get()); | 173 return SkRef(fStyles[index].get()); |
174 } | 174 } |
175 | 175 |
176 static int match_score(const SkFontStyle& pattern, const SkFontStyle& candid
ate) { | 176 static int match_score(const SkFontStyle& pattern, const SkFontStyle& candid
ate) { |
177 int score = 0; | 177 int score = 0; |
178 score += (pattern.width() - candidate.width()) * 100; | 178 score += (pattern.width() - candidate.width()) * 100; |
179 score += (pattern.isItalic() == candidate.isItalic()) ? 0 : 1000; | 179 score += (pattern.isItalic() == candidate.isItalic()) ? 0 : 1000; |
180 score += pattern.weight() - candidate.weight(); | 180 score += pattern.weight() - candidate.weight(); |
181 return score; | 181 return score; |
182 } | 182 } |
183 | 183 |
184 SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { | 184 SkTypeface* matchStyle(const SkFontStyle& pattern) override { |
185 if (0 == fStyles.count()) { | 185 if (0 == fStyles.count()) { |
186 return NULL; | 186 return NULL; |
187 } | 187 } |
188 | 188 |
189 SkTypeface_Custom* closest = fStyles[0]; | 189 SkTypeface_Custom* closest = fStyles[0]; |
190 int minScore = std::numeric_limits<int>::max(); | 190 int minScore = std::numeric_limits<int>::max(); |
191 for (int i = 0; i < fStyles.count(); ++i) { | 191 for (int i = 0; i < fStyles.count(); ++i) { |
192 bool bold = fStyles[i]->isBold(); | 192 bool bold = fStyles[i]->isBold(); |
193 bool italic = fStyles[i]->isItalic(); | 193 bool italic = fStyles[i]->isItalic(); |
194 SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight | 194 SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight |
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224 * one SkFontStyleSet_Custom for each family. This class may be modified | 224 * one SkFontStyleSet_Custom for each family. This class may be modified |
225 * to load fonts from any source by changing the initialization. | 225 * to load fonts from any source by changing the initialization. |
226 */ | 226 */ |
227 class SkFontMgr_Custom : public SkFontMgr { | 227 class SkFontMgr_Custom : public SkFontMgr { |
228 public: | 228 public: |
229 explicit SkFontMgr_Custom(const char* dir) { | 229 explicit SkFontMgr_Custom(const char* dir) { |
230 this->load_system_fonts(dir); | 230 this->load_system_fonts(dir); |
231 } | 231 } |
232 | 232 |
233 protected: | 233 protected: |
234 int onCountFamilies() const SK_OVERRIDE { | 234 int onCountFamilies() const override { |
235 return fFamilies.count(); | 235 return fFamilies.count(); |
236 } | 236 } |
237 | 237 |
238 void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE { | 238 void onGetFamilyName(int index, SkString* familyName) const override { |
239 SkASSERT(index < fFamilies.count()); | 239 SkASSERT(index < fFamilies.count()); |
240 familyName->set(fFamilies[index]->fFamilyName); | 240 familyName->set(fFamilies[index]->fFamilyName); |
241 } | 241 } |
242 | 242 |
243 SkFontStyleSet_Custom* onCreateStyleSet(int index) const SK_OVERRIDE { | 243 SkFontStyleSet_Custom* onCreateStyleSet(int index) const override { |
244 SkASSERT(index < fFamilies.count()); | 244 SkASSERT(index < fFamilies.count()); |
245 return SkRef(fFamilies[index].get()); | 245 return SkRef(fFamilies[index].get()); |
246 } | 246 } |
247 | 247 |
248 SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const SK_OVERR
IDE { | 248 SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const override
{ |
249 for (int i = 0; i < fFamilies.count(); ++i) { | 249 for (int i = 0; i < fFamilies.count(); ++i) { |
250 if (fFamilies[i]->fFamilyName.equals(familyName)) { | 250 if (fFamilies[i]->fFamilyName.equals(familyName)) { |
251 return SkRef(fFamilies[i].get()); | 251 return SkRef(fFamilies[i].get()); |
252 } | 252 } |
253 } | 253 } |
254 return NULL; | 254 return NULL; |
255 } | 255 } |
256 | 256 |
257 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], | 257 virtual SkTypeface* onMatchFamilyStyle(const char familyName[], |
258 const SkFontStyle& fontStyle) const S
K_OVERRIDE | 258 const SkFontStyle& fontStyle) const o
verride |
259 { | 259 { |
260 SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); | 260 SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); |
261 return sset->matchStyle(fontStyle); | 261 return sset->matchStyle(fontStyle); |
262 } | 262 } |
263 | 263 |
264 virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], con
st SkFontStyle&, | 264 virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], con
st SkFontStyle&, |
265 const char* bcp47[], int bcp
47Count, | 265 const char* bcp47[], int bcp
47Count, |
266 SkUnichar character) const S
K_OVERRIDE | 266 SkUnichar character) const o
verride |
267 { | 267 { |
268 return NULL; | 268 return NULL; |
269 } | 269 } |
270 | 270 |
271 virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, | 271 virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, |
272 const SkFontStyle& fontStyle) const SK_
OVERRIDE | 272 const SkFontStyle& fontStyle) const ove
rride |
273 { | 273 { |
274 for (int i = 0; i < fFamilies.count(); ++i) { | 274 for (int i = 0; i < fFamilies.count(); ++i) { |
275 for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { | 275 for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { |
276 if (fFamilies[i]->fStyles[j] == familyMember) { | 276 if (fFamilies[i]->fStyles[j] == familyMember) { |
277 return fFamilies[i]->matchStyle(fontStyle); | 277 return fFamilies[i]->matchStyle(fontStyle); |
278 } | 278 } |
279 } | 279 } |
280 } | 280 } |
281 return NULL; | 281 return NULL; |
282 } | 282 } |
283 | 283 |
284 SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OVERRIDE { | 284 SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const override { |
285 return this->createFromStream(new SkMemoryStream(data), ttcIndex); | 285 return this->createFromStream(new SkMemoryStream(data), ttcIndex); |
286 } | 286 } |
287 | 287 |
288 SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) cons
t SK_OVERRIDE { | 288 SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) cons
t override { |
289 SkAutoTDelete<SkStreamAsset> stream(bareStream); | 289 SkAutoTDelete<SkStreamAsset> stream(bareStream); |
290 if (NULL == stream || stream->getLength() <= 0) { | 290 if (NULL == stream || stream->getLength() <= 0) { |
291 return NULL; | 291 return NULL; |
292 } | 292 } |
293 | 293 |
294 bool isFixedPitch; | 294 bool isFixedPitch; |
295 SkFontStyle style; | 295 SkFontStyle style; |
296 SkString name; | 296 SkString name; |
297 if (fScanner.scanFont(stream, ttcIndex, &name, &style, &isFixedPitch)) { | 297 if (fScanner.scanFont(stream, ttcIndex, &name, &style, &isFixedPitch)) { |
298 return SkNEW_ARGS(SkTypeface_Stream, (style, isFixedPitch, false, na
me, | 298 return SkNEW_ARGS(SkTypeface_Stream, (style, isFixedPitch, false, na
me, |
299 stream.detach(), ttcIndex)); | 299 stream.detach(), ttcIndex)); |
300 } else { | 300 } else { |
301 return NULL; | 301 return NULL; |
302 } | 302 } |
303 } | 303 } |
304 | 304 |
305 SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const SK_OVERR
IDE { | 305 SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override
{ |
306 SkAutoTDelete<SkStreamAsset> stream(SkStream::NewFromFile(path)); | 306 SkAutoTDelete<SkStreamAsset> stream(SkStream::NewFromFile(path)); |
307 return stream.get() ? this->createFromStream(stream.detach(), ttcIndex)
: NULL; | 307 return stream.get() ? this->createFromStream(stream.detach(), ttcIndex)
: NULL; |
308 } | 308 } |
309 | 309 |
310 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], | 310 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], |
311 unsigned styleBits) const SK_OVER
RIDE | 311 unsigned styleBits) const overrid
e |
312 { | 312 { |
313 SkTypeface::Style oldStyle = (SkTypeface::Style)styleBits; | 313 SkTypeface::Style oldStyle = (SkTypeface::Style)styleBits; |
314 SkFontStyle style = SkFontStyle(oldStyle & SkTypeface::kBold | 314 SkFontStyle style = SkFontStyle(oldStyle & SkTypeface::kBold |
315 ? SkFontStyle::kBold_Weight | 315 ? SkFontStyle::kBold_Weight |
316 : SkFontStyle::kNormal_Weight, | 316 : SkFontStyle::kNormal_Weight, |
317 SkFontStyle::kNormal_Width, | 317 SkFontStyle::kNormal_Width, |
318 oldStyle & SkTypeface::kItalic | 318 oldStyle & SkTypeface::kItalic |
319 ? SkFontStyle::kItalic_Slant | 319 ? SkFontStyle::kItalic_Slant |
320 : SkFontStyle::kUpright_Slant); | 320 : SkFontStyle::kUpright_Slant); |
321 SkTypeface* tf = NULL; | 321 SkTypeface* tf = NULL; |
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429 | 429 |
430 SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> fFamilies; | 430 SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> fFamilies; |
431 SkFontStyleSet_Custom* gDefaultFamily; | 431 SkFontStyleSet_Custom* gDefaultFamily; |
432 SkTypeface* gDefaultNormal; | 432 SkTypeface* gDefaultNormal; |
433 SkTypeface_FreeType::Scanner fScanner; | 433 SkTypeface_FreeType::Scanner fScanner; |
434 }; | 434 }; |
435 | 435 |
436 SkFontMgr* SkFontMgr::Factory() { | 436 SkFontMgr* SkFontMgr::Factory() { |
437 return new SkFontMgr_Custom(SK_FONT_FILE_PREFIX); | 437 return new SkFontMgr_Custom(SK_FONT_FILE_PREFIX); |
438 } | 438 } |
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