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