/*
    Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
                  2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>

    This file is part of the KDE 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 SVGPathElement_h
#define SVGPathElement_h

#if ENABLE(SVG)
#include "SVGAnimatedPathData.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGLangSpace.h"
#include "SVGStyledTransformableElement.h"
#include "SVGTests.h"

namespace WebCore
{

class SVGPathSeg;
class SVGPathSegArcAbs;
class SVGPathSegArcRel;
class SVGPathSegClosePath;
class SVGPathSegLinetoAbs;
class SVGPathSegLinetoRel;
class SVGPathSegMovetoAbs;
class SVGPathSegMovetoRel;
class SVGPathSegCurvetoCubicAbs;
class SVGPathSegCurvetoCubicRel;
class SVGPathSegLinetoVerticalAbs;
class SVGPathSegLinetoVerticalRel;
class SVGPathSegLinetoHorizontalAbs;
class SVGPathSegLinetoHorizontalRel;
class SVGPathSegCurvetoQuadraticAbs;
class SVGPathSegCurvetoQuadraticRel;
class SVGPathSegCurvetoCubicSmoothAbs;
class SVGPathSegCurvetoCubicSmoothRel;
class SVGPathSegCurvetoQuadraticSmoothAbs;
class SVGPathSegCurvetoQuadraticSmoothRel;
class SVGPathElement : public SVGStyledTransformableElement,
    public SVGTests,
    public SVGLangSpace,
    public SVGExternalResourcesRequired,
    public SVGAnimatedPathData
{
public:
    SVGPathElement(const QualifiedName &, Document *);
    virtual ~SVGPathElement();

    virtual bool isValid() const
    {
        return SVGTests::isValid();
    }
    float getTotalLength();
    FloatPoint getPointAtLength(float distance);
    unsigned long getPathSegAtLength(float distance);

    static PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath();
    static PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y);
    static PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y);
    static PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y);
    static PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y);
    static PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2);
    static PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2);
    static PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1);
    static PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1);
    static PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
    static PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
    static PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x);
    static PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x);
    static PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y);
    static PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y);
    static PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2);
    static PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2);
    static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y);
    static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y);

    // Derived from: 'SVGAnimatedPathData'
    virtual SVGPathSegList *pathSegList() const;
    virtual SVGPathSegList *normalizedPathSegList() const;
    virtual SVGPathSegList *animatedPathSegList() const;
    virtual SVGPathSegList *animatedNormalizedPathSegList() const;

    virtual void parseMappedAttribute(MappedAttribute *);
    virtual void svgAttributeChanged(const QualifiedName &);

    virtual Path toPathData() const;

    virtual bool supportsMarkers() const
    {
        return true;
    }

    // KHTML ElementImpl pure virtual method
    virtual quint32 id() const;
protected:
    virtual const SVGElement *contextElement() const
    {
        return this;
    }

private:
    mutable RefPtr<SVGPathSegList> m_pathSegList;

    ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)

    ANIMATED_PROPERTY_DECLARATIONS(SVGPathElement, float, float, PathLength, pathLength)
};

} // namespace WebCore

#endif // ENABLE(SVG)
#endif
