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Side by Side Diff: Source/platform/geometry/FloatPolygon.h

Issue 32823017: Move FloatPolygon.* and WindRule.h to Source/platform/ (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Export classes/enum for win/mac Created 7 years, 2 months ago
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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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23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
27 * OF THE POSSIBILITY OF SUCH DAMAGE. 27 * OF THE POSSIBILITY OF SUCH DAMAGE.
28 */ 28 */
29 29
30 #ifndef FloatPolygon_h 30 #ifndef FloatPolygon_h
31 #define FloatPolygon_h 31 #define FloatPolygon_h
32 32
33 #include "core/platform/graphics/WindRule.h"
34 #include "platform/PODIntervalTree.h" 33 #include "platform/PODIntervalTree.h"
35 #include "platform/geometry/FloatPoint.h" 34 #include "platform/geometry/FloatPoint.h"
36 #include "platform/geometry/FloatRect.h" 35 #include "platform/geometry/FloatRect.h"
36 #include "platform/graphics/WindRule.h"
37 #include "wtf/OwnPtr.h" 37 #include "wtf/OwnPtr.h"
38 #include "wtf/PassOwnPtr.h" 38 #include "wtf/PassOwnPtr.h"
39 #include "wtf/Vector.h" 39 #include "wtf/Vector.h"
40 40
41 namespace WebCore { 41 namespace WebCore {
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 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(); }
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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 VertexPair { 83 class PLATFORM_EXPORT VertexPair {
84 public: 84 public:
85 virtual ~VertexPair() { } 85 virtual ~VertexPair() { }
86 86
87 virtual const FloatPoint& vertex1() const = 0; 87 virtual const FloatPoint& vertex1() const = 0;
88 virtual const FloatPoint& vertex2() const = 0; 88 virtual const FloatPoint& vertex2() const = 0;
89 89
90 float minX() const { return std::min(vertex1().x(), vertex2().x()); } 90 float minX() const { return std::min(vertex1().x(), vertex2().x()); }
91 float minY() const { return std::min(vertex1().y(), vertex2().y()); } 91 float minY() const { return std::min(vertex1().y(), vertex2().y()); }
92 float maxX() const { return std::max(vertex1().x(), vertex2().x()); } 92 float maxX() const { return std::max(vertex1().x(), vertex2().x()); }
93 float maxY() const { return std::max(vertex1().y(), vertex2().y()); } 93 float maxY() const { return std::max(vertex1().y(), vertex2().y()); }
94 94
95 bool overlapsRect(const FloatRect&) const; 95 bool overlapsRect(const FloatRect&) const;
96 bool intersection(const VertexPair&, FloatPoint&) const; 96 bool intersection(const VertexPair&, FloatPoint&) const;
97 }; 97 };
98 98
99 class FloatPolygonEdge : public VertexPair { 99 class PLATFORM_EXPORT FloatPolygonEdge : public VertexPair {
100 friend class FloatPolygon; 100 friend class FloatPolygon;
101 public: 101 public:
102 virtual const FloatPoint& vertex1() const OVERRIDE 102 virtual const FloatPoint& vertex1() const OVERRIDE
103 { 103 {
104 ASSERT(m_polygon); 104 ASSERT(m_polygon);
105 return m_polygon->vertexAt(m_vertexIndex1); 105 return m_polygon->vertexAt(m_vertexIndex1);
106 } 106 }
107 107
108 virtual const FloatPoint& vertex2() const OVERRIDE 108 virtual const FloatPoint& vertex2() const OVERRIDE
109 { 109 {
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144 }; 144 };
145 145
146 template<> struct ValueToString<FloatPolygonEdge*> { 146 template<> struct ValueToString<FloatPolygonEdge*> {
147 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 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()); }
148 }; 148 };
149 #endif 149 #endif
150 150
151 } // namespace WebCore 151 } // namespace WebCore
152 152
153 #endif // FloatPolygon_h 153 #endif // FloatPolygon_h
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