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59 lines
2.4 KiB
C++
59 lines
2.4 KiB
C++
/*
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* Copyright (C) 2011 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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*
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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 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 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
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* ON 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
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef WebContentLayerClient_h
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#define WebContentLayerClient_h
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#include "WebCanvas.h"
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#include "WebCommon.h"
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namespace blink {
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struct WebRect;
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struct WebFloatRect;
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class BLINK_PLATFORM_EXPORT WebContentLayerClient {
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public:
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enum GraphicsContextStatus { GraphicsContextEnabled, GraphicsContextDisabled };
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// Paints the content area for the layer, typically dirty rects submitted
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// through WebContentLayer::setNeedsDisplay, submitting drawing commands
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// through the WebCanvas.
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// The canvas is already clipped to the |clip| rect.
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// Optionally, the implementation may set |opaque| to a rect covering pixels that
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// the implementation knows are opaque. This information can be used for various
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// optimizations.
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// The |disableContext| enum controls most processing in
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// GraphicsContext to isolate the painting code in performance tests.
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virtual void paintContents(WebCanvas*, const WebRect& clip, bool canPaintLCDText, WebFloatRect& opaque, GraphicsContextStatus = GraphicsContextEnabled) = 0;
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protected:
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virtual ~WebContentLayerClient() { }
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};
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} // namespace blink
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#endif // WebContentLayerClient_h
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