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| 1 /* | |
| 2 * Copyright 2014 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrStencilAndCoverTextContext_DEFINED | |
| 9 #define GrStencilAndCoverTextContext_DEFINED | |
| 10 | |
| 11 #include "GrTextContext.h" | |
| 12 #include "GrDrawState.h" | |
| 13 #include "SkStrokeRec.h" | |
| 14 | |
| 15 class GrTextStrike; | |
| 16 class GrPath; | |
| 17 | |
| 18 /* | |
| 19 * This class implements text rendering using stencil and cover path rendering | |
| 20 * (by the means of GrDrawTarget::drawPath). | |
| 21 * This class exposes the functionality through GrTextContext interface. | |
| 22 */ | |
| 23 class GrStencilAndCoverTextContext : public GrTextContext { | |
| 24 public: | |
| 25 GrStencilAndCoverTextContext(GrContext*, const SkDeviceProperties&); | |
| 26 virtual ~GrStencilAndCoverTextContext(); | |
| 27 | |
| 28 virtual void drawText(const GrPaint&, const SkPaint&, const char text[], | |
| 29 size_t byteLength, | |
| 30 SkScalar x, SkScalar y) SK_OVERRIDE; | |
| 31 virtual void drawPosText(const GrPaint&, const SkPaint&, | |
| 32 const char text[], size_t byteLength, | |
| 33 const SkScalar pos[], SkScalar constY, | |
| 34 int scalarsPerPosition) SK_OVERRIDE; | |
| 35 | |
| 36 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; | |
| 37 | |
| 38 private: | |
| 39 void init(const GrPaint&, const SkPaint&, size_t textByteLength); | |
| 40 void appendGlyph(GrGlyph::PackedID, const SkPoint&, | |
| 41 GrTextStrike*, GrFontScaler*); | |
| 42 void finish(); | |
| 43 | |
| 44 GrDrawState::AutoRestoreEffects fStateRestore; | |
| 45 SkScalar fTextRatio; | |
| 46 SkStrokeRec fStroke; | |
| 47 SkTDArray<const GrPath*> fPaths; | |
| 48 SkTDArray<SkMatrix> fTransforms; | |
| 49 SkPath fTmpPath; | |
| 50 }; | |
| 51 | |
| 52 #endif | |
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