/*

    Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <wildfox@kde.org>

                  2004, 2005 Rob Buis <buis@kde.org>

                  2005 Eric Seidel <eric.seidel@kdemail.net>

    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

    aint 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 SVGFEDiffuseLighting_h

#define SVGFEDiffuseLighting_h

#if ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES)

#include "Color.h"

#include "SVGFilterEffect.h"

namespace WebCore {

class SVGLightSource;

class SVGFEDiffuseLighting : public SVGFilterEffect {

public:

    SVGFEDiffuseLighting();

    virtual ~SVGFEDiffuseLighting();

    Color lightingColor() const;

    void setLightingColor(const Color&);

    float surfaceScale() const;

    void setSurfaceScale(float);

    float diffuseConstant() const;

    void setDiffuseConstant(float);

    float kernelUnitLengthX() const;

    void setKernelUnitLengthX(float);

    float kernelUnitLengthY() const;

    void setKernelUnitLengthY(float);

    const SVGLightSource* lightSource() const;

    void setLightSource(SVGLightSource*);

    virtual TextStream& externalRepresentation(TextStream&) const;

#if PLATFORM(CI)

    virtual CIFilter* getCIFilter(SVGResourceFilter*) const;

#endif

private:

    Color m_lightingColor;

    float m_surfaceScale;

    float m_diffuseConstant;

    float m_kernelUnitLengthX;

    float m_kernelUnitLengthY;

    SVGLightSource* m_lightSource;

};

} // namespace WebCore

#endif // ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES)

#endif // SVGFEDiffuseLighting_h