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70 lines
2.7 KiB
C++
70 lines
2.7 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef OpaqueRectTrackingContentLayerDelegate_h
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#define OpaqueRectTrackingContentLayerDelegate_h
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#include "platform/PlatformExport.h"
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#include "public/platform/WebContentLayerClient.h"
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#include "wtf/Noncopyable.h"
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#include "wtf/PassOwnPtr.h"
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class SkCanvas;
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namespace blink {
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class GraphicsContext;
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class IntRect;
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class PLATFORM_EXPORT GraphicsContextPainter {
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public:
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virtual void paint(GraphicsContext&, const IntRect& clip) = 0;
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protected:
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virtual ~GraphicsContextPainter() { }
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};
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class PLATFORM_EXPORT OpaqueRectTrackingContentLayerDelegate : public WebContentLayerClient {
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WTF_MAKE_NONCOPYABLE(OpaqueRectTrackingContentLayerDelegate);
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public:
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explicit OpaqueRectTrackingContentLayerDelegate(GraphicsContextPainter*);
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virtual ~OpaqueRectTrackingContentLayerDelegate();
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// If we know that everything that will be painted through this delegate, then we don't bother
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// tracking opaqueness.
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void setOpaque(bool opaque) { m_opaque = opaque; }
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// WebContentLayerClient implementation.
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virtual void paintContents(SkCanvas*, const WebRect& clip, bool canPaintLCDText, WebFloatRect& opaque,
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WebContentLayerClient::GraphicsContextStatus = GraphicsContextEnabled) OVERRIDE;
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private:
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GraphicsContextPainter* m_painter;
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bool m_opaque;
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};
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} // namespace blink
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#endif // OpaqueRectTrackingContentLayerDelegate_h
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