1 /* 2 * Copyright (C) 2007 Eric Seidel <eric@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 #if ENABLE(SVG) 25 #include "FloatPoint.h" 26 #include "PathTraversalState.h" 27 #include "SVGPathConsumer.h" 28 29 namespace WebCore { 30 31 class SVGPathTraversalStateBuilder : public SVGPathConsumer { 32 public: 33 SVGPathTraversalStateBuilder(); 34 35 unsigned long pathSegmentIndex(); setCurrentTraversalState(PathTraversalState * traversalState)36 void setCurrentTraversalState(PathTraversalState* traversalState) { m_traversalState = traversalState; } 37 void setDesiredLength(float); 38 virtual void incrementPathSegmentCount(); 39 virtual bool continueConsuming(); cleanup()40 virtual void cleanup() { m_traversalState = 0; } 41 42 private: 43 // Used in UnalteredParisng/NormalizedParsing modes. 44 virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode); 45 virtual void lineTo(const FloatPoint&, PathCoordinateMode); 46 virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode); 47 virtual void closePath(); 48 49 private: 50 // Not used for PathTraversalState. lineToHorizontal(float,PathCoordinateMode)51 virtual void lineToHorizontal(float, PathCoordinateMode) { ASSERT_NOT_REACHED(); } lineToVertical(float,PathCoordinateMode)52 virtual void lineToVertical(float, PathCoordinateMode) { ASSERT_NOT_REACHED(); } curveToCubicSmooth(const FloatPoint &,const FloatPoint &,PathCoordinateMode)53 virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } curveToQuadratic(const FloatPoint &,const FloatPoint &,PathCoordinateMode)54 virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } curveToQuadraticSmooth(const FloatPoint &,PathCoordinateMode)55 virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } arcTo(float,float,float,bool,bool,const FloatPoint &,PathCoordinateMode)56 virtual void arcTo(float, float, float, bool, bool, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); } 57 58 PathTraversalState* m_traversalState; 59 float m_desiredLength; 60 }; 61 62 } // namespace WebCore 63 64 #endif // ENABLE(SVG) 65 #endif // SVGPathTraversalStateBuilder_h 66