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Side by Side Diff: Source/core/layout/LayoutGeometryMap.h

Issue 945803004: Merge back LayoutLayerModelObject into RenderBoxModelObject (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Better rebasing. Created 5 years, 10 months ago
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1 /* 1 /*
2 * Copyright (C) 2012 Apple Inc. All rights reserved. 2 * Copyright (C) 2012 Apple Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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30 #include "core/layout/LayoutObject.h" 30 #include "core/layout/LayoutObject.h"
31 #include "platform/geometry/FloatPoint.h" 31 #include "platform/geometry/FloatPoint.h"
32 #include "platform/geometry/FloatQuad.h" 32 #include "platform/geometry/FloatQuad.h"
33 #include "platform/geometry/IntSize.h" 33 #include "platform/geometry/IntSize.h"
34 #include "platform/geometry/LayoutSize.h" 34 #include "platform/geometry/LayoutSize.h"
35 #include "wtf/OwnPtr.h" 35 #include "wtf/OwnPtr.h"
36 36
37 namespace blink { 37 namespace blink {
38 38
39 class Layer; 39 class Layer;
40 class LayoutLayerModelObject; 40 class LayoutBoxModelObject;
41 class TransformationMatrix; 41 class TransformationMatrix;
42 class TransformState; 42 class TransformState;
43 43
44 // Can be used while walking the Renderer tree to cache data about offsets and t ransforms. 44 // Can be used while walking the Renderer tree to cache data about offsets and t ransforms.
45 class LayoutGeometryMap { 45 class LayoutGeometryMap {
46 WTF_MAKE_NONCOPYABLE(LayoutGeometryMap); 46 WTF_MAKE_NONCOPYABLE(LayoutGeometryMap);
47 public: 47 public:
48 LayoutGeometryMap(MapCoordinatesFlags = UseTransforms); 48 LayoutGeometryMap(MapCoordinatesFlags = UseTransforms);
49 ~LayoutGeometryMap(); 49 ~LayoutGeometryMap();
50 50
51 MapCoordinatesFlags mapCoordinatesFlags() const { return m_mapCoordinatesFla gs; } 51 MapCoordinatesFlags mapCoordinatesFlags() const { return m_mapCoordinatesFla gs; }
52 52
53 FloatRect absoluteRect(const FloatRect& rect) const 53 FloatRect absoluteRect(const FloatRect& rect) const
54 { 54 {
55 return mapToContainer(rect, 0).boundingBox(); 55 return mapToContainer(rect, 0).boundingBox();
56 } 56 }
57 57
58 // Map to a container. Will assert that the container has been pushed onto t his map. 58 // Map to a container. Will assert that the container has been pushed onto t his map.
59 // A null container maps through the RenderView (including its scale transfo rm, if any). 59 // A null container maps through the RenderView (including its scale transfo rm, if any).
60 // If the container is the RenderView, the scroll offset is applied, but not the scale. 60 // If the container is the RenderView, the scroll offset is applied, but not the scale.
61 FloatPoint mapToContainer(const FloatPoint&, const LayoutLayerModelObject*) const; 61 FloatPoint mapToContainer(const FloatPoint&, const LayoutBoxModelObject*) co nst;
62 FloatQuad mapToContainer(const FloatRect&, const LayoutLayerModelObject*) co nst; 62 FloatQuad mapToContainer(const FloatRect&, const LayoutBoxModelObject*) cons t;
63 63
64 // Called by code walking the renderer or layer trees. 64 // Called by code walking the renderer or layer trees.
65 void pushMappingsToAncestor(const Layer*, const Layer* ancestorLayer); 65 void pushMappingsToAncestor(const Layer*, const Layer* ancestorLayer);
66 void popMappingsToAncestor(const Layer*); 66 void popMappingsToAncestor(const Layer*);
67 void pushMappingsToAncestor(const LayoutObject*, const LayoutLayerModelObjec t* ancestorRenderer); 67 void pushMappingsToAncestor(const LayoutObject*, const LayoutBoxModelObject* ancestorRenderer);
68 void popMappingsToAncestor(const LayoutLayerModelObject*); 68 void popMappingsToAncestor(const LayoutBoxModelObject*);
69 69
70 // The following methods should only be called by renderers inside a call to pushMappingsToAncestor(). 70 // The following methods should only be called by renderers inside a call to pushMappingsToAncestor().
71 71
72 // Push geometry info between this renderer and some ancestor. The ancestor must be its container() or some 72 // Push geometry info between this renderer and some ancestor. The ancestor must be its container() or some
73 // stacking context between the renderer and its container. 73 // stacking context between the renderer and its container.
74 void push(const LayoutObject*, const LayoutSize&, bool accumulatingTransform = false, bool isNonUniform = false, bool isFixedPosition = false, bool hasTrans form = false, LayoutSize offsetForFixedPosition = LayoutSize()); 74 void push(const LayoutObject*, const LayoutSize&, bool accumulatingTransform = false, bool isNonUniform = false, bool isFixedPosition = false, bool hasTrans form = false, LayoutSize offsetForFixedPosition = LayoutSize());
75 void push(const LayoutObject*, const TransformationMatrix&, bool accumulatin gTransform = false, bool isNonUniform = false, bool isFixedPosition = false, boo l hasTransform = false, LayoutSize offsetForFixedPosition = LayoutSize()); 75 void push(const LayoutObject*, const TransformationMatrix&, bool accumulatin gTransform = false, bool isNonUniform = false, bool isFixedPosition = false, boo l hasTransform = false, LayoutSize offsetForFixedPosition = LayoutSize());
76 76
77 private: 77 private:
78 void mapToContainer(TransformState&, const LayoutLayerModelObject* container = 0) const; 78 void mapToContainer(TransformState&, const LayoutBoxModelObject* container = 0) const;
79 79
80 void stepInserted(const LayoutGeometryMapStep&); 80 void stepInserted(const LayoutGeometryMapStep&);
81 void stepRemoved(const LayoutGeometryMapStep&); 81 void stepRemoved(const LayoutGeometryMapStep&);
82 82
83 bool hasNonUniformStep() const { return m_nonUniformStepsCount; } 83 bool hasNonUniformStep() const { return m_nonUniformStepsCount; }
84 bool hasTransformStep() const { return m_transformedStepsCount; } 84 bool hasTransformStep() const { return m_transformedStepsCount; }
85 bool hasFixedPositionStep() const { return m_fixedStepsCount; } 85 bool hasFixedPositionStep() const { return m_fixedStepsCount; }
86 86
87 #ifndef NDEBUG 87 #ifndef NDEBUG
88 void dumpSteps() const; 88 void dumpSteps() const;
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99 int m_transformedStepsCount; 99 int m_transformedStepsCount;
100 int m_fixedStepsCount; 100 int m_fixedStepsCount;
101 LayoutGeometryMapSteps m_mapping; 101 LayoutGeometryMapSteps m_mapping;
102 LayoutSize m_accumulatedOffset; 102 LayoutSize m_accumulatedOffset;
103 MapCoordinatesFlags m_mapCoordinatesFlags; 103 MapCoordinatesFlags m_mapCoordinatesFlags;
104 }; 104 };
105 105
106 } // namespace blink 106 } // namespace blink
107 107
108 #endif // LayoutGeometryMap_h 108 #endif // LayoutGeometryMap_h
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