2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
11 * 2. Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following
13 * disclaimer in the documentation and/or other materials
14 * provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
27 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 #ifndef PolygonShape_h
31 #define PolygonShape_h
33 #include "core/rendering/shapes/Shape.h"
34 #include "core/rendering/shapes/ShapeInterval.h"
35 #include "platform/geometry/FloatPolygon.h"
39 class OffsetPolygonEdge FINAL : public VertexPair {
41 OffsetPolygonEdge(const FloatPolygonEdge& edge, const FloatSize& offset)
42 : m_vertex1(edge.vertex1() + offset)
43 , m_vertex2(edge.vertex2() + offset)
47 virtual const FloatPoint& vertex1() const OVERRIDE { return m_vertex1; }
48 virtual const FloatPoint& vertex2() const OVERRIDE { return m_vertex2; }
50 bool isWithinYRange(float y1, float y2) const { return y1 <= minY() && y2 >= maxY(); }
51 bool overlapsYRange(float y1, float y2) const { return y2 >= minY() && y1 <= maxY(); }
52 float xIntercept(float y) const;
53 FloatShapeInterval clippedEdgeXRange(float y1, float y2) const;
60 class PolygonShape FINAL : public Shape {
61 WTF_MAKE_NONCOPYABLE(PolygonShape);
63 PolygonShape(PassOwnPtr<Vector<FloatPoint> > vertices, WindRule fillRule)
65 , m_polygon(vertices, fillRule)
69 virtual LayoutRect shapeMarginLogicalBoundingBox() const OVERRIDE;
70 virtual bool isEmpty() const OVERRIDE { return m_polygon.isEmpty(); }
71 virtual void getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE;
72 virtual void buildDisplayPaths(DisplayPaths&) const OVERRIDE;
75 FloatPolygon m_polygon;
78 } // namespace WebCore
80 #endif // PolygonShape_h