1/* 2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20#ifndef SVGPathBlender_h 21#define SVGPathBlender_h 22 23#include "SVGPathConsumer.h" 24 25namespace WebCore { 26 27enum FloatBlendMode { 28 BlendHorizontal, 29 BlendVertical 30}; 31 32class SVGPathSource; 33 34class SVGPathBlender { 35 WTF_MAKE_NONCOPYABLE(SVGPathBlender); WTF_MAKE_FAST_ALLOCATED; 36public: 37 SVGPathBlender(); 38 39 bool addAnimatedPath(SVGPathSource*, SVGPathSource*, SVGPathConsumer*, unsigned repeatCount); 40 bool blendAnimatedPath(float, SVGPathSource*, SVGPathSource*, SVGPathConsumer*); 41 void cleanup(); 42 43private: 44 bool blendMoveToSegment(); 45 bool blendLineToSegment(); 46 bool blendLineToHorizontalSegment(); 47 bool blendLineToVerticalSegment(); 48 bool blendCurveToCubicSegment(); 49 bool blendCurveToCubicSmoothSegment(); 50 bool blendCurveToQuadraticSegment(); 51 bool blendCurveToQuadraticSmoothSegment(); 52 bool blendArcToSegment(); 53 54 float blendAnimatedDimensonalFloat(float, float, FloatBlendMode); 55 FloatPoint blendAnimatedFloatPoint(const FloatPoint& from, const FloatPoint& to); 56 57 SVGPathSource* m_fromSource; 58 SVGPathSource* m_toSource; 59 SVGPathConsumer* m_consumer; 60 61 FloatPoint m_fromCurrentPoint; 62 FloatPoint m_toCurrentPoint; 63 64 PathCoordinateMode m_fromMode; 65 PathCoordinateMode m_toMode; 66 float m_progress; 67 unsigned m_addTypesCount; 68 bool m_isInFirstHalfOfAnimation; 69}; 70 71} // namespace WebCore 72 73#endif // SVGPathBlender_h 74