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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SKIA_EXT_PLATFORM_CANVAS_H_ | 5 #ifndef SKIA_EXT_PLATFORM_CANVAS_H_ |
6 #define SKIA_EXT_PLATFORM_CANVAS_H_ | 6 #define SKIA_EXT_PLATFORM_CANVAS_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 // The platform-specific device will include the necessary platform headers | 9 // The platform-specific device will include the necessary platform headers |
10 // to get the surface type. | 10 // to get the surface type. |
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92 // alignment reasons we may wish to increase that. | 92 // alignment reasons we may wish to increase that. |
93 static size_t StrideForWidth(unsigned width); | 93 static size_t StrideForWidth(unsigned width); |
94 | 94 |
95 // Allow callers to see the non-virtual function even though we have an | 95 // Allow callers to see the non-virtual function even though we have an |
96 // override of a virtual one. | 96 // override of a virtual one. |
97 // FIXME(brettw) is this necessary? | 97 // FIXME(brettw) is this necessary? |
98 using SkCanvas::clipRect; | 98 using SkCanvas::clipRect; |
99 | 99 |
100 private: | 100 private: |
101 // Helper method used internally by the initialize() methods. | 101 // Helper method used internally by the initialize() methods. |
102 bool initializeWithDevice(SkDevice* device); | 102 bool initializeWithDevice(PlatformDevice* device); |
103 | 103 |
104 // Unimplemented. This is to try to prevent people from calling this function | 104 // Unimplemented. This is to try to prevent people from calling this function |
105 // on SkCanvas. SkCanvas' version is not virtual, so we can't prevent this | 105 // on SkCanvas. SkCanvas' version is not virtual, so we can't prevent this |
106 // 100%, but hopefully this will make people notice and not use the function. | 106 // 100%, but hopefully this will make people notice and not use the function. |
107 // Calling SkCanvas' version will create a new device which is not compatible | 107 // Calling SkCanvas' version will create a new device which is not compatible |
108 // with us and we will crash if somebody tries to draw into it with | 108 // with us and we will crash if somebody tries to draw into it with |
109 // CoreGraphics. | 109 // CoreGraphics. |
110 virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap); | 110 virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap); |
111 | 111 |
112 // Disallow copy and assign. | 112 // Disallow copy and assign. |
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132 // synchronize the bitmap to OS if necessary. | 132 // synchronize the bitmap to OS if necessary. |
133 // | 133 // |
134 // Note: These functions will eventually replace | 134 // Note: These functions will eventually replace |
135 // PlatformCanvas::beginPlatformPaint and PlatformCanvas::endPlatformPaint. | 135 // PlatformCanvas::beginPlatformPaint and PlatformCanvas::endPlatformPaint. |
136 SK_API PlatformDevice::PlatformSurface BeginPlatformPaint(SkCanvas* canvas); | 136 SK_API PlatformDevice::PlatformSurface BeginPlatformPaint(SkCanvas* canvas); |
137 SK_API void EndPlatformPaint(SkCanvas* canvas); | 137 SK_API void EndPlatformPaint(SkCanvas* canvas); |
138 | 138 |
139 } // namespace skia | 139 } // namespace skia |
140 | 140 |
141 #endif // SKIA_EXT_PLATFORM_CANVAS_H_ | 141 #endif // SKIA_EXT_PLATFORM_CANVAS_H_ |
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