/*

    Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>

                  2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>

    Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.

    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.

*/

#include "config.h"

#if ENABLE(SVG)

#include "SVGClipPathElement.h"

#include "Attribute.h"

#include "CSSStyleSelector.h"

#include "Document.h"

#include "RenderSVGResourceClipper.h"

#include "SVGNames.h"

#include "SVGTransformList.h"

#include "SVGUnitTypes.h"

namespace WebCore {

SVGClipPathElement::SVGClipPathElement(const QualifiedName& tagName, Document* doc)

    : SVGStyledTransformableElement(tagName, doc)

    , SVGTests()

    , SVGLangSpace()

    , SVGExternalResourcesRequired()

    , m_clipPathUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)

{

}

SVGClipPathElement::~SVGClipPathElement()

{

}

void SVGClipPathElement::parseMappedAttribute(Attribute* attr)

{

    if (attr->name() == SVGNames::clipPathUnitsAttr) {

        if (attr->value() == "userSpaceOnUse")

            setClipPathUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);

        else if (attr->value() == "objectBoundingBox")

            setClipPathUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);

    } else {

        if (SVGTests::parseMappedAttribute(attr))

            return;

        if (SVGLangSpace::parseMappedAttribute(attr))

            return;

        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))

            return;

        SVGStyledTransformableElement::parseMappedAttribute(attr);

    }

}

void SVGClipPathElement::svgAttributeChanged(const QualifiedName& attrName)

{

    SVGStyledTransformableElement::svgAttributeChanged(attrName);

    if (attrName == SVGNames::clipPathUnitsAttr ||

        SVGTests::isKnownAttribute(attrName) || 

        SVGLangSpace::isKnownAttribute(attrName) ||

        SVGExternalResourcesRequired::isKnownAttribute(attrName) ||

        SVGStyledTransformableElement::isKnownAttribute(attrName))

        invalidateResourceClients();

}

void SVGClipPathElement::synchronizeProperty(const QualifiedName& attrName)

{

    SVGStyledTransformableElement::synchronizeProperty(attrName);

    if (attrName == anyQName()) {

        synchronizeClipPathUnits();

        synchronizeExternalResourcesRequired();

        return;

    }

    if (attrName == SVGNames::clipPathUnitsAttr)

        synchronizeClipPathUnits();

    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))

        synchronizeExternalResourcesRequired();

}

void SVGClipPathElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)

{

    SVGStyledTransformableElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);

    if (!changedByParser)

        invalidateResourceClients();

}

RenderObject* SVGClipPathElement::createRenderer(RenderArena* arena, RenderStyle*)

{

    return new (arena) RenderSVGResourceClipper(this);

}

}

#endif // ENABLE(SVG)