/*
    Copyright (C) 2005 Alexander Kellett <lypanov@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 SVGMaskElement_h
#define SVGMaskElement_h

#if ENABLE(SVG)
#include "SVGResourceMasker.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGLangSpace.h"
#include "SVGStyledLocatableElement.h"
#include "SVGTests.h"
#include "SVGURIReference.h"

namespace WebCore
{

class SVGLength;

class SVGMaskElement : public SVGStyledLocatableElement,
    public SVGURIReference,
    public SVGTests,
    public SVGLangSpace,
    public SVGExternalResourcesRequired
{
public:
    SVGMaskElement(const QualifiedName &, Document *);
    virtual ~SVGMaskElement();
    virtual bool isValid() const
    {
        return SVGTests::isValid();
    }

    virtual void parseMappedAttribute(MappedAttribute *);
    virtual void svgAttributeChanged(const QualifiedName &);
    virtual void childrenChanged(bool changedByParser = false, Node *beforeChange = 0, Node *afterChange = 0, int childCountDelta = 0);

    virtual RenderObject *createRenderer(RenderArena *, RenderStyle *);
    virtual SVGResource *canvasResource();

    std::auto_ptr<ImageBuffer> drawMaskerContent(const FloatRect &targetRect, FloatRect &maskRect) const;

protected:
    ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGURIReference, String, Href, href)
    ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)

    ANIMATED_PROPERTY_DECLARATIONS(SVGMaskElement, int, int, MaskUnits, maskUnits)
    ANIMATED_PROPERTY_DECLARATIONS(SVGMaskElement, int, int, MaskContentUnits, maskContentUnits)

    ANIMATED_PROPERTY_DECLARATIONS(SVGMaskElement, SVGLength, SVGLength, X, x)
    ANIMATED_PROPERTY_DECLARATIONS(SVGMaskElement, SVGLength, SVGLength, Y, y)
    ANIMATED_PROPERTY_DECLARATIONS(SVGMaskElement, SVGLength, SVGLength, Width, width)
    ANIMATED_PROPERTY_DECLARATIONS(SVGMaskElement, SVGLength, SVGLength, Height, height)

    virtual const SVGElement *contextElement() const
    {
        return this;
    }

private:
    RefPtr<SVGResourceMasker> m_masker;
};

} // namespace WebCore

#endif // ENABLE(SVG)
#endif
