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| 1 /* | |
| 2 * Copyright (C) 2009 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef SKY_ENGINE_CORE_HTML_CANVAS_CANVASRENDERINGCONTEXT_H_ | |
| 27 #define SKY_ENGINE_CORE_HTML_CANVAS_CANVASRENDERINGCONTEXT_H_ | |
| 28 | |
| 29 #include "sky/engine/core/html/HTMLCanvasElement.h" | |
| 30 #include "sky/engine/platform/heap/Handle.h" | |
| 31 #include "sky/engine/wtf/HashSet.h" | |
| 32 #include "sky/engine/wtf/Noncopyable.h" | |
| 33 #include "sky/engine/wtf/text/StringHash.h" | |
| 34 | |
| 35 namespace blink { class WebLayer; } | |
| 36 | |
| 37 namespace blink { | |
| 38 | |
| 39 class CanvasImageSource; | |
| 40 class HTMLCanvasElement; | |
| 41 class KURL; | |
| 42 class WebGLObject; | |
| 43 | |
| 44 class CanvasRenderingContext { | |
| 45 WTF_MAKE_NONCOPYABLE(CanvasRenderingContext); | |
| 46 WTF_MAKE_FAST_ALLOCATED; | |
| 47 public: | |
| 48 virtual ~CanvasRenderingContext() { } | |
| 49 | |
| 50 #if !ENABLE(OILPAN) | |
| 51 void ref() { m_canvas->ref(); } | |
| 52 void deref() { m_canvas->deref(); } | |
| 53 #endif | |
| 54 | |
| 55 HTMLCanvasElement* canvas() const { return m_canvas; } | |
| 56 | |
| 57 virtual bool is2d() const { return false; } | |
| 58 virtual bool is3d() const { return false; } | |
| 59 virtual bool isAccelerated() const { return false; } | |
| 60 virtual bool hasAlpha() const { return true; } | |
| 61 virtual void setIsHidden(bool) = 0; | |
| 62 | |
| 63 virtual void paintRenderingResultsToCanvas() {} | |
| 64 | |
| 65 virtual blink::WebLayer* platformLayer() const { return 0; } | |
| 66 | |
| 67 protected: | |
| 68 CanvasRenderingContext(HTMLCanvasElement*); | |
| 69 | |
| 70 private: | |
| 71 RawPtr<HTMLCanvasElement> m_canvas; | |
| 72 HashSet<String> m_cleanURLs; | |
| 73 HashSet<String> m_dirtyURLs; | |
| 74 }; | |
| 75 | |
| 76 } // namespace blink | |
| 77 | |
| 78 #endif // SKY_ENGINE_CORE_HTML_CANVAS_CANVASRENDERINGCONTEXT_H_ | |
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