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30 #ifndef ShapeOutsideInfo_h
31 #define ShapeOutsideInfo_h
33 #include "core/rendering/shapes/Shape.h"
34 #include "core/rendering/style/RenderStyle.h"
35 #include "core/rendering/style/ShapeValue.h"
36 #include "platform/geometry/FloatRect.h"
37 #include "platform/geometry/LayoutSize.h"
38 #include "wtf/OwnPtr.h"
42 class RenderBlockFlow;
46 class ShapeOutsideDeltas FINAL {
49 : m_lineOverlapsShape(false)
54 ShapeOutsideDeltas(LayoutUnit leftMarginBoxDelta, LayoutUnit rightMarginBoxDelta, bool lineOverlapsShape, LayoutUnit borderBoxLineTop, LayoutUnit lineHeight)
55 : m_leftMarginBoxDelta(leftMarginBoxDelta)
56 , m_rightMarginBoxDelta(rightMarginBoxDelta)
57 , m_borderBoxLineTop(borderBoxLineTop)
58 , m_lineHeight(lineHeight)
59 , m_lineOverlapsShape(lineOverlapsShape)
64 bool isForLine(LayoutUnit borderBoxLineTop, LayoutUnit lineHeight)
66 return m_isValid && m_borderBoxLineTop == borderBoxLineTop && m_lineHeight == lineHeight;
69 bool isValid() { return m_isValid; }
70 LayoutUnit leftMarginBoxDelta() { ASSERT(m_isValid); return m_leftMarginBoxDelta; }
71 LayoutUnit rightMarginBoxDelta() { ASSERT(m_isValid); return m_rightMarginBoxDelta; }
72 bool lineOverlapsShape() { ASSERT(m_isValid); return m_lineOverlapsShape; }
75 LayoutUnit m_leftMarginBoxDelta;
76 LayoutUnit m_rightMarginBoxDelta;
77 LayoutUnit m_borderBoxLineTop;
78 LayoutUnit m_lineHeight;
79 bool m_lineOverlapsShape : 1;
83 class ShapeOutsideInfo FINAL {
84 WTF_MAKE_FAST_ALLOCATED;
86 void setReferenceBoxLogicalSize(LayoutSize);
88 LayoutUnit shapeLogicalTop() const { return computedShape().shapeMarginLogicalBoundingBox().y() + logicalTopOffset(); }
89 LayoutUnit shapeLogicalBottom() const { return computedShape().shapeMarginLogicalBoundingBox().maxY() + logicalTopOffset(); }
90 LayoutUnit shapeLogicalLeft() const { return computedShape().shapeMarginLogicalBoundingBox().x() + logicalLeftOffset(); }
91 LayoutUnit shapeLogicalRight() const { return computedShape().shapeMarginLogicalBoundingBox().maxX() + logicalLeftOffset(); }
92 LayoutUnit shapeLogicalWidth() const { return computedShape().shapeMarginLogicalBoundingBox().width(); }
93 LayoutUnit shapeLogicalHeight() const { return computedShape().shapeMarginLogicalBoundingBox().height(); }
95 static PassOwnPtr<ShapeOutsideInfo> createInfo(const RenderBox& renderer) { return adoptPtr(new ShapeOutsideInfo(renderer)); }
96 static bool isEnabledFor(const RenderBox&);
98 ShapeOutsideDeltas computeDeltasForContainingBlockLine(const RenderBlockFlow&, const FloatingObject&, LayoutUnit lineTop, LayoutUnit lineHeight);
100 static ShapeOutsideInfo& ensureInfo(const RenderBox& key)
102 InfoMap& infoMap = ShapeOutsideInfo::infoMap();
103 if (ShapeOutsideInfo* info = infoMap.get(&key))
105 InfoMap::AddResult result = infoMap.add(&key, ShapeOutsideInfo::createInfo(key));
106 return *result.storedValue->value;
108 static void removeInfo(const RenderBox& key) { infoMap().remove(&key); }
109 static ShapeOutsideInfo* info(const RenderBox& key) { return infoMap().get(&key); }
111 void markShapeAsDirty() { m_shape.clear(); }
112 bool isShapeDirty() { return !m_shape.get(); }
113 LayoutSize shapeSize() const { return m_referenceBoxLogicalSize; }
114 bool isComputingShape() const { return m_isComputingShape; }
116 LayoutRect computedShapePhysicalBoundingBox() const;
117 FloatPoint shapeToRendererPoint(FloatPoint) const;
118 FloatSize shapeToRendererSize(FloatSize) const;
119 const Shape& computedShape() const;
122 ShapeOutsideInfo(const RenderBox& renderer)
123 : m_renderer(renderer)
124 , m_isComputingShape(false)
128 PassOwnPtr<Shape> createShapeForImage(StyleImage*, float shapeImageThreshold, WritingMode, float margin) const;
130 LayoutUnit logicalTopOffset() const;
131 LayoutUnit logicalLeftOffset() const;
133 typedef HashMap<const RenderBox*, OwnPtr<ShapeOutsideInfo> > InfoMap;
134 static InfoMap& infoMap()
136 DEFINE_STATIC_LOCAL(InfoMap, staticInfoMap, ());
137 return staticInfoMap;
140 const RenderBox& m_renderer;
141 mutable OwnPtr<Shape> m_shape;
142 LayoutSize m_referenceBoxLogicalSize;
143 ShapeOutsideDeltas m_shapeOutsideDeltas;
144 mutable bool m_isComputingShape;