1 /* 2 * Copyright (C) 2007 Eric Seidel <eric (at) webkit.org> 3 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef SVGPathTraversalStateBuilder_h 22 #define SVGPathTraversalStateBuilder_h 23 24 #include "core/svg/SVGPathConsumer.h" 25 #include "core/svg/SVGPoint.h" 26 27 namespace WebCore { 28 29 class PathTraversalState; 30 31 class SVGPathTraversalStateBuilder : public SVGPathConsumer { 32 public: 33 SVGPathTraversalStateBuilder(); 34 35 unsigned pathSegmentIndex(); 36 float totalLength(); 37 SVGPoint currentPoint(); 38 39 void setCurrentTraversalState(PathTraversalState* traversalState) { m_traversalState = traversalState; } 40 void setDesiredLength(float); 41 virtual void incrementPathSegmentCount(); 42 virtual bool continueConsuming(); 43 virtual void cleanup() { m_traversalState = 0; } 44 45 private: 46 // Used in UnalteredParsing/NormalizedParsing modes. 47 virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode); 48 virtual void lineTo(const FloatPoint&, PathCoordinateMode); 49 virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode); 50 virtual void closePath(); 51 52 private: 53 // Not used for PathTraversalState. 54 virtual void lineToHorizontal(float, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 55 virtual void lineToVertical(float, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 56 virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 57 virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 58 virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 59 virtual void arcTo(float, float, float, bool, bool, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 60 61 PathTraversalState* m_traversalState; 62 }; 63 64 } // namespace WebCore 65 66 #endif // SVGPathTraversalStateBuilder_h 67
