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comparison: gfx/skia/trunk/include/core/SkEmptyShader.h
gfx/skia/trunk/include/core/SkEmptyShader.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:ab4d25c54f32 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 | |
| 11 #ifndef SkEmptyShader_DEFINED | |
| 12 #define SkEmptyShader_DEFINED | |
| 13 | |
| 14 #include "SkShader.h" | |
| 15 | |
| 16 /** | |
| 17 * \class SkEmptyShader | |
| 18 * A Shader that always draws nothing. Its setContext always returns false, | |
| 19 * so it never expects that its shadeSpan() methods will get called. | |
| 20 */ | |
| 21 class SK_API SkEmptyShader : public SkShader { | |
| 22 public: | |
| 23 SkEmptyShader() {} | |
| 24 | |
| 25 virtual uint32_t getFlags() SK_OVERRIDE; | |
| 26 virtual uint8_t getSpan16Alpha() const SK_OVERRIDE; | |
| 27 virtual bool setContext(const SkBitmap&, const SkPaint&, | |
| 28 const SkMatrix&) SK_OVERRIDE; | |
| 29 virtual void shadeSpan(int x, int y, SkPMColor span[], int count) SK_OVERRIDE; | |
| 30 virtual void shadeSpan16(int x, int y, uint16_t span[], int count) SK_OVERRIDE; | |
| 31 virtual void shadeSpanAlpha(int x, int y, uint8_t alpha[], int count) SK_OVERRIDE; | |
| 32 | |
| 33 SK_TO_STRING_OVERRIDE() | |
| 34 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkEmptyShader) | |
| 35 | |
| 36 protected: | |
| 37 SkEmptyShader(SkReadBuffer& buffer) : INHERITED(buffer) {} | |
| 38 | |
| 39 private: | |
| 40 typedef SkShader INHERITED; | |
| 41 }; | |
| 42 | |
| 43 #endif |
