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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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| 72 while (vertexIndex2) { | 72 while (vertexIndex2) { |
| 73 unsigned vertexIndex3 = nextVertexIndex(vertexIndex2, nVertices, clockwi
se); | 73 unsigned vertexIndex3 = nextVertexIndex(vertexIndex2, nVertices, clockwi
se); |
| 74 if (!areCollinearPoints(polygon.vertexAt(vertexIndex1), polygon.vertexAt
(vertexIndex2), polygon.vertexAt(vertexIndex3))) | 74 if (!areCollinearPoints(polygon.vertexAt(vertexIndex1), polygon.vertexAt
(vertexIndex2), polygon.vertexAt(vertexIndex3))) |
| 75 break; | 75 break; |
| 76 vertexIndex2 = vertexIndex3; | 76 vertexIndex2 = vertexIndex3; |
| 77 } | 77 } |
| 78 | 78 |
| 79 return vertexIndex2; | 79 return vertexIndex2; |
| 80 } | 80 } |
| 81 | 81 |
| 82 FloatPolygon::FloatPolygon(PassOwnPtr<Vector<FloatPoint> > vertices, WindRule fi
llRule) | 82 FloatPolygon::FloatPolygon(PassOwnPtr<Vector<FloatPoint>> vertices, WindRule fil
lRule) |
| 83 : m_vertices(vertices) | 83 : m_vertices(vertices) |
| 84 , m_fillRule(fillRule) | 84 , m_fillRule(fillRule) |
| 85 { | 85 { |
| 86 unsigned nVertices = numberOfVertices(); | 86 unsigned nVertices = numberOfVertices(); |
| 87 m_edges.resize(nVertices); | 87 m_edges.resize(nVertices); |
| 88 m_empty = nVertices < 3; | 88 m_empty = nVertices < 3; |
| 89 | 89 |
| 90 if (nVertices) | 90 if (nVertices) |
| 91 m_boundingBox.setLocation(vertexAt(0)); | 91 m_boundingBox.setLocation(vertexAt(0)); |
| 92 | 92 |
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| 218 float uOtherLine = determinant(thisDelta, vertex1Delta) / denominator; | 218 float uOtherLine = determinant(thisDelta, vertex1Delta) / denominator; |
| 219 | 219 |
| 220 if (uThisLine < 0 || uOtherLine < 0 || uThisLine > 1 || uOtherLine > 1) | 220 if (uThisLine < 0 || uOtherLine < 0 || uThisLine > 1 || uOtherLine > 1) |
| 221 return false; | 221 return false; |
| 222 | 222 |
| 223 point = vertex1() + uThisLine * thisDelta; | 223 point = vertex1() + uThisLine * thisDelta; |
| 224 return true; | 224 return true; |
| 225 } | 225 } |
| 226 | 226 |
| 227 } // namespace blink | 227 } // namespace blink |
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