69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
/*
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* Copyright (C) 2013 Apple 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''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "GraphicsTypes.h"
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#include "Timer.h"
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#include <wtf/HashMap.h>
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namespace WebCore {
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class GraphicsContext;
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class Image;
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class LayoutSize;
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class RenderBoxModelObject;
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class RenderView;
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class RenderStyle;
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class ImageQualityController {
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WTF_MAKE_NONCOPYABLE(ImageQualityController); WTF_MAKE_FAST_ALLOCATED;
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public:
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explicit ImageQualityController(const RenderView&);
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static std::optional<InterpolationQuality> interpolationQualityFromStyle(const RenderStyle&);
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InterpolationQuality chooseInterpolationQuality(GraphicsContext&, RenderBoxModelObject*, Image&, const void* layer, const LayoutSize&);
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void rendererWillBeDestroyed(RenderBoxModelObject& renderer) { removeObject(&renderer); }
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private:
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typedef HashMap<const void*, LayoutSize> LayerSizeMap;
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typedef HashMap<RenderBoxModelObject*, LayerSizeMap> ObjectLayerSizeMap;
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void removeLayer(RenderBoxModelObject*, LayerSizeMap* innerMap, const void* layer);
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void set(RenderBoxModelObject*, LayerSizeMap* innerMap, const void* layer, const LayoutSize&);
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void highQualityRepaintTimerFired();
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void restartTimer();
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void removeObject(RenderBoxModelObject*);
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const RenderView& m_renderView;
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ObjectLayerSizeMap m_objectLayerSizeMap;
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Timer m_timer;
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bool m_animatedResizeIsActive { false };
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bool m_liveResizeOptimizationIsActive { false };
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};
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} // namespace WebCore
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