1/* 2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> 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 SVGTransform_h 22#define SVGTransform_h 23 24#include "FloatPoint.h" 25#include "SVGMatrix.h" 26 27namespace WebCore { 28 29class FloatSize; 30 31class SVGTransform { 32public: 33 enum SVGTransformType { 34 SVG_TRANSFORM_UNKNOWN = 0, 35 SVG_TRANSFORM_MATRIX = 1, 36 SVG_TRANSFORM_TRANSLATE = 2, 37 SVG_TRANSFORM_SCALE = 3, 38 SVG_TRANSFORM_ROTATE = 4, 39 SVG_TRANSFORM_SKEWX = 5, 40 SVG_TRANSFORM_SKEWY = 6 41 }; 42 43 enum ConstructionMode { 44 ConstructIdentityTransform, 45 ConstructZeroTransform 46 }; 47 48 SVGTransform(); 49 SVGTransform(SVGTransformType, ConstructionMode = ConstructIdentityTransform); 50 explicit SVGTransform(const AffineTransform&); 51 52 SVGTransformType type() const { return m_type; } 53 54 SVGMatrix& svgMatrix() { return static_cast<SVGMatrix&>(m_matrix); } 55 AffineTransform matrix() const { return m_matrix; } 56 void updateSVGMatrix(); 57 58 float angle() const { return m_angle; } 59 FloatPoint rotationCenter() const { return m_center; } 60 61 void setMatrix(const AffineTransform&); 62 void setTranslate(float tx, float ty); 63 void setScale(float sx, float sy); 64 void setRotate(float angle, float cx, float cy); 65 void setSkewX(float angle); 66 void setSkewY(float angle); 67 68 // Internal use only (animation system) 69 FloatPoint translate() const; 70 FloatSize scale() const; 71 72 bool isValid() const { return m_type != SVG_TRANSFORM_UNKNOWN; } 73 String valueAsString() const; 74 75 static const String& transformTypePrefixForParsing(SVGTransformType); 76 77private: 78 friend bool operator==(const SVGTransform& a, const SVGTransform& b); 79 80 SVGTransformType m_type; 81 float m_angle; 82 FloatPoint m_center; 83 AffineTransform m_matrix; 84}; 85 86inline bool operator==(const SVGTransform& a, const SVGTransform& b) 87{ 88 return a.m_type == b.m_type && a.m_angle == b.m_angle && a.m_matrix == b.m_matrix; 89} 90 91inline bool operator!=(const SVGTransform& a, const SVGTransform& b) 92{ 93 return !(a == b); 94} 95 96} // namespace WebCore 97 98#endif 99