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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 #ifndef SkScalerContext_DEFINED | 8 #ifndef SkScalerContext_DEFINED |
9 #define SkScalerContext_DEFINED | 9 #define SkScalerContext_DEFINED |
10 | 10 |
11 #include "SkMask.h" | 11 #include "SkMask.h" |
12 #include "SkMaskGamma.h" | 12 #include "SkMaskGamma.h" |
13 #include "SkMatrix.h" | 13 #include "SkMatrix.h" |
14 #include "SkPaint.h" | 14 #include "SkPaint.h" |
15 #include "SkTypeface.h" | 15 #include "SkTypeface.h" |
16 | 16 |
17 #ifdef SK_BUILD_FOR_ANDROID | |
18 #include "SkPaintOptionsAndroid.h" | |
19 #endif | |
20 | |
21 struct SkGlyph; | 17 struct SkGlyph; |
22 class SkDescriptor; | 18 class SkDescriptor; |
23 class SkMaskFilter; | 19 class SkMaskFilter; |
24 class SkPathEffect; | 20 class SkPathEffect; |
25 class SkRasterizer; | 21 class SkRasterizer; |
26 | 22 |
27 /* | 23 /* |
28 * To allow this to be forward-declared, it must be its own typename, rather | 24 * To allow this to be forward-declared, it must be its own typename, rather |
29 * than a nested struct inside SkScalerContext (where it started). | 25 * than a nested struct inside SkScalerContext (where it started). |
30 */ | 26 */ |
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255 * The default implementation always returns 0, indicating failure. | 251 * The default implementation always returns 0, indicating failure. |
256 */ | 252 */ |
257 virtual SkUnichar generateGlyphToChar(uint16_t glyphId); | 253 virtual SkUnichar generateGlyphToChar(uint16_t glyphId); |
258 | 254 |
259 void forceGenerateImageFromPath() { fGenerateImageFromPath = true; } | 255 void forceGenerateImageFromPath() { fGenerateImageFromPath = true; } |
260 | 256 |
261 private: | 257 private: |
262 // never null | 258 // never null |
263 SkAutoTUnref<SkTypeface> fTypeface; | 259 SkAutoTUnref<SkTypeface> fTypeface; |
264 | 260 |
265 #ifdef SK_BUILD_FOR_ANDROID | |
266 SkPaintOptionsAndroid fPaintOptionsAndroid; | |
267 #endif | |
268 | |
269 // optional object, which may be null | 261 // optional object, which may be null |
270 SkPathEffect* fPathEffect; | 262 SkPathEffect* fPathEffect; |
271 SkMaskFilter* fMaskFilter; | 263 SkMaskFilter* fMaskFilter; |
272 SkRasterizer* fRasterizer; | 264 SkRasterizer* fRasterizer; |
273 | 265 |
274 // if this is set, we draw the image from a path, rather than | 266 // if this is set, we draw the image from a path, rather than |
275 // calling generateImage. | 267 // calling generateImage. |
276 bool fGenerateImageFromPath; | 268 bool fGenerateImageFromPath; |
277 | 269 |
278 void internalGetPath(const SkGlyph& glyph, SkPath* fillPath, | 270 void internalGetPath(const SkGlyph& glyph, SkPath* fillPath, |
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290 private: | 282 private: |
291 // When there is a filter, previous steps must create a linear mask | 283 // When there is a filter, previous steps must create a linear mask |
292 // and the pre-blend applied as a final step. | 284 // and the pre-blend applied as a final step. |
293 const SkMaskGamma::PreBlend fPreBlendForFilter; | 285 const SkMaskGamma::PreBlend fPreBlendForFilter; |
294 }; | 286 }; |
295 | 287 |
296 #define kRec_SkDescriptorTag SkSetFourByteTag('s', 'r', 'e', 'c') | 288 #define kRec_SkDescriptorTag SkSetFourByteTag('s', 'r', 'e', 'c') |
297 #define kPathEffect_SkDescriptorTag SkSetFourByteTag('p', 't', 'h', 'e') | 289 #define kPathEffect_SkDescriptorTag SkSetFourByteTag('p', 't', 'h', 'e') |
298 #define kMaskFilter_SkDescriptorTag SkSetFourByteTag('m', 's', 'k', 'f') | 290 #define kMaskFilter_SkDescriptorTag SkSetFourByteTag('m', 's', 'k', 'f') |
299 #define kRasterizer_SkDescriptorTag SkSetFourByteTag('r', 'a', 's', 't') | 291 #define kRasterizer_SkDescriptorTag SkSetFourByteTag('r', 'a', 's', 't') |
300 #ifdef SK_BUILD_FOR_ANDROID | |
301 #define kAndroidOpts_SkDescriptorTag SkSetFourByteTag('a', 'n', 'd', 'r') | |
302 #endif | |
303 | 292 |
304 /////////////////////////////////////////////////////////////////////////////// | 293 /////////////////////////////////////////////////////////////////////////////// |
305 | 294 |
306 enum SkAxisAlignment { | 295 enum SkAxisAlignment { |
307 kNone_SkAxisAlignment, | 296 kNone_SkAxisAlignment, |
308 kX_SkAxisAlignment, | 297 kX_SkAxisAlignment, |
309 kY_SkAxisAlignment | 298 kY_SkAxisAlignment |
310 }; | 299 }; |
311 | 300 |
312 /** | 301 /** |
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325 return static_cast<SkPaint::Hinting>(hint); | 314 return static_cast<SkPaint::Hinting>(hint); |
326 } | 315 } |
327 | 316 |
328 void SkScalerContextRec::setHinting(SkPaint::Hinting hinting) { | 317 void SkScalerContextRec::setHinting(SkPaint::Hinting hinting) { |
329 fFlags = (fFlags & ~SkScalerContext::kHinting_Mask) | | 318 fFlags = (fFlags & ~SkScalerContext::kHinting_Mask) | |
330 (hinting << SkScalerContext::kHinting_Shift); | 319 (hinting << SkScalerContext::kHinting_Shift); |
331 } | 320 } |
332 | 321 |
333 | 322 |
334 #endif | 323 #endif |
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