/*

 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#ifndef SVGPaintServer_h

#define SVGPaintServer_h

#if ENABLE(SVG)

#include "SVGResource.h"

#if PLATFORM(CG)

#include <ApplicationServices/ApplicationServices.h>

#endif

#if PLATFORM(QT)

class QPen;

#endif

namespace WebCore {

    enum SVGPaintServerType {

        // Painting mode

        SolidPaintServer = 0,

        PatternPaintServer = 1,

        LinearGradientPaintServer = 2,

        RadialGradientPaintServer = 3

    };

    enum SVGPaintTargetType {

        // Target mode

        ApplyToFillTargetType = 1,

        ApplyToStrokeTargetType = 2

    };

    class GraphicsContext;

    class RenderObject;

    class RenderPath;

    class RenderStyle;

    class SVGPaintServer : public SVGResource {

    public:

        SVGPaintServer();

        virtual ~SVGPaintServer();

        virtual bool isPaintServer() const { return true; }

        virtual SVGPaintServerType type() const = 0;

        virtual TextStream& externalRepresentation(TextStream&) const = 0;

        // To be implemented in platform specific code.

        virtual void draw(GraphicsContext*&, const RenderPath*, SVGPaintTargetType) const;

        virtual void teardown(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText = false) const;

        virtual void renderPath(GraphicsContext*&, const RenderPath*, SVGPaintTargetType) const;

        virtual bool setup(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText = false) const = 0;

    protected:

#if PLATFORM(CG)

        void strokePath(CGContextRef, const RenderPath*) const;

        void clipToStrokePath(CGContextRef, const RenderPath*) const;

        void fillPath(CGContextRef, const RenderPath*) const;

        void clipToFillPath(CGContextRef, const RenderPath*) const;

#endif

#if PLATFORM(QT)

        void setPenProperties(const RenderObject*, const RenderStyle*, QPen&) const;

#endif

    };

    TextStream& operator<<(TextStream&, const SVGPaintServer&);

    SVGPaintServer* getPaintServerById(Document*, const AtomicString&);

} // namespace WebCore

#endif

#endif // SVGPaintServer_h