/*

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

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

    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 "SVGStopElement.h"

#include "Attribute.h"

#include "Document.h"

#include "RenderSVGGradientStop.h"

#include "RenderSVGResource.h"

#include "SVGGradientElement.h"

#include "SVGNames.h"

namespace WebCore {

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

    : SVGStyledElement(tagName, doc)

    , m_offset(0)

{

}

SVGStopElement::~SVGStopElement()

{

}

void SVGStopElement::parseMappedAttribute(Attribute* attr)

{

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

        const String& value = attr->value();

        if (value.endsWith("%"))

            setOffsetBaseValue(value.left(value.length() - 1).toFloat() / 100.0f);

        else

            setOffsetBaseValue(value.toFloat());

    } else

        SVGStyledElement::parseMappedAttribute(attr);

}

void SVGStopElement::svgAttributeChanged(const QualifiedName& attrName)

{

    SVGStyledElement::svgAttributeChanged(attrName);

    if (!renderer())

        return;

    if (attrName == SVGNames::offsetAttr)

        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer());

}

void SVGStopElement::synchronizeProperty(const QualifiedName& attrName)

{

    SVGStyledElement::synchronizeProperty(attrName);

    if (attrName == anyQName() || attrName == SVGNames::offsetAttr)

        synchronizeOffset();

}

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

{

    return new (arena) RenderSVGGradientStop(this);

}

Color SVGStopElement::stopColorIncludingOpacity() const

{

    ASSERT(renderer());

    ASSERT(renderer()->style());

    const SVGRenderStyle* svgStyle = renderer()->style()->svgStyle();

    return colorWithOverrideAlpha(svgStyle->stopColor().rgb(), svgStyle->stopOpacity());

}

}

#endif // ENABLE(SVG)