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920920310e
Merge most of it into RenderBox. Only RenderBoxes can have layers now. This also meant a bit of code could be cleaned up since some virtuals (e.g. updateFromStyle) are no longer needed since they're only called on RenderBoxes. collectSelfPaintingLayers is the only bit that's moved into RenderBoxModelObject instead of RenderBox. That's because we need to be able to recurse down into RenderInlines since they may contain RenderBoxes that have selfPaintingLayers. R=abarth@chromium.org Review URL: https://codereview.chromium.org/953673002
107 lines
4.5 KiB
C++
107 lines
4.5 KiB
C++
/*
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* Copyright (C) 2012 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 COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_RENDERING_RENDERGEOMETRYMAP_H_
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#define SKY_ENGINE_CORE_RENDERING_RENDERGEOMETRYMAP_H_
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#include "sky/engine/core/rendering/RenderGeometryMapStep.h"
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#include "sky/engine/core/rendering/RenderObject.h"
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#include "sky/engine/platform/geometry/FloatPoint.h"
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#include "sky/engine/platform/geometry/FloatQuad.h"
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#include "sky/engine/platform/geometry/IntSize.h"
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#include "sky/engine/platform/geometry/LayoutSize.h"
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#include "sky/engine/wtf/OwnPtr.h"
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namespace blink {
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class RenderLayer;
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class RenderBox;
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class TransformationMatrix;
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class TransformState;
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// Can be used while walking the Renderer tree to cache data about offsets and transforms.
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class RenderGeometryMap {
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WTF_MAKE_NONCOPYABLE(RenderGeometryMap);
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public:
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RenderGeometryMap(MapCoordinatesFlags = UseTransforms);
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~RenderGeometryMap();
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MapCoordinatesFlags mapCoordinatesFlags() const { return m_mapCoordinatesFlags; }
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FloatRect absoluteRect(const FloatRect& rect) const
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{
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return mapToContainer(rect, 0).boundingBox();
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}
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// Map to a container. Will assert that the container has been pushed onto this map.
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// A null container maps through the RenderView (including its scale transform, if any).
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// If the container is the RenderView, the scroll offset is applied, but not the scale.
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FloatPoint mapToContainer(const FloatPoint&, const RenderBox*) const;
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FloatQuad mapToContainer(const FloatRect&, const RenderBox*) const;
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// Called by code walking the renderer or layer trees.
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void pushMappingsToAncestor(const RenderLayer*, const RenderLayer* ancestorLayer);
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void popMappingsToAncestor(const RenderLayer*);
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void pushMappingsToAncestor(const RenderObject*, const RenderBox* ancestorRenderer);
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void popMappingsToAncestor(const RenderBox*);
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// The following methods should only be called by renderers inside a call to pushMappingsToAncestor().
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// Push geometry info between this renderer and some ancestor. The ancestor must be its container() or some
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// stacking context between the renderer and its container.
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void push(const RenderObject*, const LayoutSize&, bool accumulatingTransform = false, bool isNonUniform = false, bool hasTransform = false);
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void push(const RenderObject*, const TransformationMatrix&, bool accumulatingTransform = false, bool isNonUniform = false, bool hasTransform = false);
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private:
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void mapToContainer(TransformState&, const RenderBox* container = 0) const;
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void stepInserted(const RenderGeometryMapStep&);
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void stepRemoved(const RenderGeometryMapStep&);
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bool hasNonUniformStep() const { return m_nonUniformStepsCount; }
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bool hasTransformStep() const { return m_transformedStepsCount; }
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#ifndef NDEBUG
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void dumpSteps() const;
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#endif
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#if ENABLE(ASSERT)
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bool isTopmostRenderView(const RenderObject* renderer) const;
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#endif
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typedef Vector<RenderGeometryMapStep, 32> RenderGeometryMapSteps;
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size_t m_insertionPosition;
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int m_nonUniformStepsCount;
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int m_transformedStepsCount;
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RenderGeometryMapSteps m_mapping;
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LayoutSize m_accumulatedOffset;
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MapCoordinatesFlags m_mapCoordinatesFlags;
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_RENDERING_RENDERGEOMETRYMAP_H_
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