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33 #include "core/rendering/shapes/Shape.h"
34 #include "core/rendering/shapes/ShapeInterval.h"
35 #include "platform/geometry/FloatRect.h"
36 #include "wtf/Assertions.h"
37 #include "wtf/Vector.h"
41 class RasterShapeIntervals {
43 RasterShapeIntervals(unsigned size, int offset = 0)
46 m_intervals.resize(clampTo<int>(size));
49 void initializeBounds();
50 const IntRect& bounds() const { return m_bounds; }
51 bool isEmpty() const { return m_bounds.isEmpty(); }
53 IntShapeInterval& intervalAt(int y)
55 ASSERT(y + m_offset >= 0 && static_cast<unsigned>(y + m_offset) < m_intervals.size());
56 return m_intervals[y + m_offset];
59 const IntShapeInterval& intervalAt(int y) const
61 ASSERT(y + m_offset >= 0 && static_cast<unsigned>(y + m_offset) < m_intervals.size());
62 return m_intervals[y + m_offset];
65 PassOwnPtr<RasterShapeIntervals> computeShapeMarginIntervals(int shapeMargin) const;
67 void buildBoundsPath(Path&) const;
70 int size() const { return m_intervals.size(); }
71 int offset() const { return m_offset; }
72 int minY() const { return -m_offset; }
73 int maxY() const { return -m_offset + m_intervals.size(); }
76 Vector<IntShapeInterval> m_intervals;
80 class RasterShape FINAL : public Shape {
81 WTF_MAKE_NONCOPYABLE(RasterShape);
83 RasterShape(PassOwnPtr<RasterShapeIntervals> intervals, const IntSize& marginRectSize)
84 : m_intervals(intervals)
85 , m_marginRectSize(marginRectSize)
87 m_intervals->initializeBounds();
90 virtual LayoutRect shapeMarginLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(marginIntervals().bounds()); }
91 virtual bool isEmpty() const OVERRIDE { return m_intervals->isEmpty(); }
92 virtual void getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE;
93 virtual void buildDisplayPaths(DisplayPaths& paths) const OVERRIDE
95 m_intervals->buildBoundsPath(paths.shape);
97 marginIntervals().buildBoundsPath(paths.marginShape);
101 const RasterShapeIntervals& marginIntervals() const;
103 OwnPtr<RasterShapeIntervals> m_intervals;
104 mutable OwnPtr<RasterShapeIntervals> m_marginIntervals;
105 IntSize m_marginRectSize;
108 } // namespace WebCore
110 #endif // RasterShape_h