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Side by Side Diff: third_party/WebKit/Source/platform/geometry/FloatQuad.h

Issue 2392543003: reflow comments in platform/geometry (Closed)
Patch Set: Created 4 years, 2 months ago
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1 /* 1 /*
2 * Copyright (C) 2008 Apple Inc. All rights reserved. 2 * Copyright (C) 2008 Apple Inc. 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 copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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77 // isEmpty tests that the bounding box is empty. This will not identify 77 // isEmpty tests that the bounding box is empty. This will not identify
78 // "slanted" empty quads. 78 // "slanted" empty quads.
79 bool isEmpty() const { return boundingBox().isEmpty(); } 79 bool isEmpty() const { return boundingBox().isEmpty(); }
80 80
81 // Tests whether this quad can be losslessly represented by a FloatRect, 81 // Tests whether this quad can be losslessly represented by a FloatRect,
82 // that is, if two edges are parallel to the x-axis and the other two 82 // that is, if two edges are parallel to the x-axis and the other two
83 // are parallel to the y-axis. If this method returns true, the 83 // are parallel to the y-axis. If this method returns true, the
84 // corresponding FloatRect can be retrieved with boundingBox(). 84 // corresponding FloatRect can be retrieved with boundingBox().
85 bool isRectilinear() const; 85 bool isRectilinear() const;
86 86
87 // Tests whether the given point is inside, or on an edge or corner of this qu ad. 87 // Tests whether the given point is inside, or on an edge or corner of this
88 // quad.
88 bool containsPoint(const FloatPoint&) const; 89 bool containsPoint(const FloatPoint&) const;
89 90
90 // Tests whether the four corners of other are inside, or coincident with the sides of this quad. 91 // Tests whether the four corners of other are inside, or coincident with the
91 // Note that this only works for convex quads, but that includes all quads tha t originate 92 // sides of this quad. Note that this only works for convex quads, but that
93 // includes all quads that originate
92 // from transformed rects. 94 // from transformed rects.
93 bool containsQuad(const FloatQuad&) const; 95 bool containsQuad(const FloatQuad&) const;
94 96
95 // Tests whether any part of the rectangle intersects with this quad. 97 // Tests whether any part of the rectangle intersects with this quad.
96 // This only works for convex quads. 98 // This only works for convex quads.
97 bool intersectsRect(const FloatRect&) const; 99 bool intersectsRect(const FloatRect&) const;
98 100
99 // Test whether any part of the circle/ellipse intersects with this quad. 101 // Test whether any part of the circle/ellipse intersects with this quad.
100 // Note that these two functions only work for convex quads. 102 // Note that these two functions only work for convex quads.
101 bool intersectsCircle(const FloatPoint& center, float radius) const; 103 bool intersectsCircle(const FloatPoint& center, float radius) const;
102 bool intersectsEllipse(const FloatPoint& center, 104 bool intersectsEllipse(const FloatPoint& center,
103 const FloatSize& radii) const; 105 const FloatSize& radii) const;
104 106
105 // The center of the quad. If the quad is the result of a affine-transformed r ectangle this is the same as the original center transformed. 107 // The center of the quad. If the quad is the result of a affine-transformed
108 // rectangle this is the same as the original center transformed.
106 FloatPoint center() const { 109 FloatPoint center() const {
107 return FloatPoint((m_p1.x() + m_p2.x() + m_p3.x() + m_p4.x()) / 4.0, 110 return FloatPoint((m_p1.x() + m_p2.x() + m_p3.x() + m_p4.x()) / 4.0,
108 (m_p1.y() + m_p2.y() + m_p3.y() + m_p4.y()) / 4.0); 111 (m_p1.y() + m_p2.y() + m_p3.y() + m_p4.y()) / 4.0);
109 } 112 }
110 113
111 FloatRect boundingBox() const; 114 FloatRect boundingBox() const;
112 IntRect enclosingBoundingBox() const { 115 IntRect enclosingBoundingBox() const {
113 return enclosingIntRect(boundingBox()); 116 return enclosingIntRect(boundingBox());
114 } 117 }
115 118
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171 a.p4() != b.p4(); 174 a.p4() != b.p4();
172 } 175 }
173 176
174 // Redeclared here to avoid ODR issues. 177 // Redeclared here to avoid ODR issues.
175 // See platform/testing/GeometryPrinters.h. 178 // See platform/testing/GeometryPrinters.h.
176 void PrintTo(const FloatQuad&, std::ostream*); 179 void PrintTo(const FloatQuad&, std::ostream*);
177 180
178 } // namespace blink 181 } // namespace blink
179 182
180 #endif // FloatQuad_h 183 #endif // FloatQuad_h
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