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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. | 2 * Copyright (C) 2012 Adobe Systems Incorporated. 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 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above | 8 * 1. Redistributions of source code must retain the above |
| 9 * copyright notice, this list of conditions and the following | 9 * copyright notice, this list of conditions and the following |
| 10 * disclaimer. | 10 * disclaimer. |
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| 42 | 42 |
| 43 class FloatPolygonEdge; | 43 class FloatPolygonEdge; |
| 44 | 44 |
| 45 // This class is used by PODIntervalTree for debugging. | 45 // This class is used by PODIntervalTree for debugging. |
| 46 #ifndef NDEBUG | 46 #ifndef NDEBUG |
| 47 template <class> struct ValueToString; | 47 template <class> struct ValueToString; |
| 48 #endif | 48 #endif |
| 49 | 49 |
| 50 class PLATFORM_EXPORT FloatPolygon { | 50 class PLATFORM_EXPORT FloatPolygon { |
| 51 public: | 51 public: |
| 52 FloatPolygon(PassOwnPtr<Vector<FloatPoint> > vertices, WindRule fillRule); | 52 FloatPolygon(PassOwnPtr<Vector<FloatPoint>> vertices, WindRule fillRule); |
| 53 | 53 |
| 54 const FloatPoint& vertexAt(unsigned index) const { return (*m_vertices)[inde
x]; } | 54 const FloatPoint& vertexAt(unsigned index) const { return (*m_vertices)[inde
x]; } |
| 55 unsigned numberOfVertices() const { return m_vertices->size(); } | 55 unsigned numberOfVertices() const { return m_vertices->size(); } |
| 56 | 56 |
| 57 WindRule fillRule() const { return m_fillRule; } | 57 WindRule fillRule() const { return m_fillRule; } |
| 58 | 58 |
| 59 const FloatPolygonEdge& edgeAt(unsigned index) const { return m_edges[index]
; } | 59 const FloatPolygonEdge& edgeAt(unsigned index) const { return m_edges[index]
; } |
| 60 unsigned numberOfEdges() const { return m_edges.size(); } | 60 unsigned numberOfEdges() const { return m_edges.size(); } |
| 61 | 61 |
| 62 FloatRect boundingBox() const { return m_boundingBox; } | 62 FloatRect boundingBox() const { return m_boundingBox; } |
| 63 bool overlappingEdges(float minY, float maxY, Vector<const FloatPolygonEdge*
>& result) const; | 63 bool overlappingEdges(float minY, float maxY, Vector<const FloatPolygonEdge*
>& result) const; |
| 64 bool contains(const FloatPoint&) const; | 64 bool contains(const FloatPoint&) const; |
| 65 bool isEmpty() const { return m_empty; } | 65 bool isEmpty() const { return m_empty; } |
| 66 | 66 |
| 67 private: | 67 private: |
| 68 typedef PODInterval<float, FloatPolygonEdge*> EdgeInterval; | 68 typedef PODInterval<float, FloatPolygonEdge*> EdgeInterval; |
| 69 typedef PODIntervalTree<float, FloatPolygonEdge*> EdgeIntervalTree; | 69 typedef PODIntervalTree<float, FloatPolygonEdge*> EdgeIntervalTree; |
| 70 | 70 |
| 71 bool containsNonZero(const FloatPoint&) const; | 71 bool containsNonZero(const FloatPoint&) const; |
| 72 bool containsEvenOdd(const FloatPoint&) const; | 72 bool containsEvenOdd(const FloatPoint&) const; |
| 73 | 73 |
| 74 OwnPtr<Vector<FloatPoint> > m_vertices; | 74 OwnPtr<Vector<FloatPoint>> m_vertices; |
| 75 WindRule m_fillRule; | 75 WindRule m_fillRule; |
| 76 FloatRect m_boundingBox; | 76 FloatRect m_boundingBox; |
| 77 bool m_empty; | 77 bool m_empty; |
| 78 Vector<FloatPolygonEdge> m_edges; | 78 Vector<FloatPolygonEdge> m_edges; |
| 79 EdgeIntervalTree m_edgeTree; // Each EdgeIntervalTree node stores minY, maxY
, and a ("UserData") pointer to a FloatPolygonEdge. | 79 EdgeIntervalTree m_edgeTree; // Each EdgeIntervalTree node stores minY, maxY
, and a ("UserData") pointer to a FloatPolygonEdge. |
| 80 | 80 |
| 81 }; | 81 }; |
| 82 | 82 |
| 83 class PLATFORM_EXPORT VertexPair { | 83 class PLATFORM_EXPORT VertexPair { |
| 84 public: | 84 public: |
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| 143 }; | 143 }; |
| 144 | 144 |
| 145 template<> struct ValueToString<FloatPolygonEdge*> { | 145 template<> struct ValueToString<FloatPolygonEdge*> { |
| 146 static String string(const FloatPolygonEdge* edge) { return String::format("
%p (%f,%f %f,%f)", edge, edge->vertex1().x(), edge->vertex1().y(), edge->vertex2
().x(), edge->vertex2().y()); } | 146 static String string(const FloatPolygonEdge* edge) { return String::format("
%p (%f,%f %f,%f)", edge, edge->vertex1().x(), edge->vertex1().y(), edge->vertex2
().x(), edge->vertex2().y()); } |
| 147 }; | 147 }; |
| 148 #endif | 148 #endif |
| 149 | 149 |
| 150 } // namespace blink | 150 } // namespace blink |
| 151 | 151 |
| 152 #endif // FloatPolygon_h | 152 #endif // FloatPolygon_h |
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