/*

 Copyright (C) 2007 Eric Seidel <eric@webkit.org>

 This file is part of the WebKit project

 This library is free software; you can redistribute it and/or

 modify it under the terms of the GNU Library General Public

 License as published by the Free Software Foundation; either

 version 2 of the License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful,

 but WITHOUT ANY WARRANTY; without even the implied warranty of

 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 Library General Public License for more details.

 You should have received a copy of the GNU Library General Public License

 along with this library; see the file COPYING.LIB.  If not, write to

 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 Boston, MA 02110-1301, USA.

 */

#ifndef SVGTransformDistance_h

#define SVGTransformDistance_h

#if ENABLE(SVG)

#include "SVGTransform.h"

namespace WebCore {

class AffineTransform;

class SVGTransformDistance {

public:

    SVGTransformDistance();

    SVGTransformDistance(const SVGTransform& fromTransform, const SVGTransform& toTransform);

    SVGTransformDistance scaledDistance(float scaleFactor) const;

    SVGTransform addToSVGTransform(const SVGTransform&) const;

    void addSVGTransform(const SVGTransform&, bool absoluteValue = false);

    static SVGTransform addSVGTransforms(const SVGTransform&, const SVGTransform&);

    bool isZero() const;

    float distance() const;

private:

    SVGTransformDistance(SVGTransform::SVGTransformType, float angle, float cx, float cy, const AffineTransform&);

    SVGTransform::SVGTransformType m_type;

    float m_angle;

    float m_cx;

    float m_cy;

    AffineTransform m_transform; // for storing scale, translation or matrix transforms

};

}

#endif // ENABLE(SVG)

#endif // SVGTransformDistance_h