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      1 /*
      2  * Copyright (C) 2007 Eric Seidel <eric (at) webkit.org>
      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 SVGTransformDistance_h
     21 #define SVGTransformDistance_h
     22 #if ENABLE(SVG)
     23 
     24 #include "SVGTransform.h"
     25 
     26 namespace WebCore {
     27 
     28 class AffineTransform;
     29 
     30 class SVGTransformDistance {
     31 public:
     32     SVGTransformDistance();
     33     SVGTransformDistance(const SVGTransform& fromTransform, const SVGTransform& toTransform);
     34 
     35     SVGTransformDistance scaledDistance(float scaleFactor) const;
     36     SVGTransform addToSVGTransform(const SVGTransform&) const;
     37     void addSVGTransform(const SVGTransform&, bool absoluteValue = false);
     38 
     39     static SVGTransform addSVGTransforms(const SVGTransform&, const SVGTransform&);
     40 
     41     bool isZero() const;
     42 
     43     float distance() const;
     44 private:
     45     SVGTransformDistance(SVGTransform::SVGTransformType, float angle, float cx, float cy, const AffineTransform&);
     46 
     47     SVGTransform::SVGTransformType m_type;
     48     float m_angle;
     49     float m_cx;
     50     float m_cy;
     51     AffineTransform m_transform; // for storing scale, translation or matrix transforms
     52 };
     53 }
     54 
     55 #endif // ENABLE(SVG)
     56 #endif // SVGTransformDistance_h
     57