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/*
* Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 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"
#include "core/svg/SVGStopElement.h"
#include "core/rendering/svg/RenderSVGGradientStop.h"
namespace blink {
inline SVGStopElement::SVGStopElement(Document& document)
: SVGElement(SVGNames::stopTag, document)
, m_offset(SVGAnimatedNumber::create(this, SVGNames::offsetAttr, SVGNumberAcceptPercentage::create()))
{
addToPropertyMap(m_offset);
}
void SVGStopElement::trace(Visitor* visitor)
{
visitor->trace(m_offset);
SVGElement::trace(visitor);
}
DEFINE_NODE_FACTORY(SVGStopElement)
void SVGStopElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
parseAttributeNew(name, value);
}
void SVGStopElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::offsetAttr) {
SVGElement::InvalidationGuard invalidationGuard(this);
if (renderer())
markForLayoutAndParentResourceInvalidation(renderer());
return;
}
SVGElement::svgAttributeChanged(attrName);
}
RenderObject* SVGStopElement::createRenderer(RenderStyle*)
{
return new RenderSVGGradientStop(this);
}
bool SVGStopElement::rendererIsNeeded(const RenderStyle&)
{
return true;
}
Color SVGStopElement::stopColorIncludingOpacity() const
{
RenderStyle* style = renderer() ? renderer()->style() : 0;
// FIXME: This check for null style exists to address Bug WK 90814, a rare crash condition in
// which the renderer or style is null. This entire class is scheduled for removal (Bug WK 86941)
// and we will tolerate this null check until then.
if (!style)
return Color(Color::transparent); // Transparent black.
const SVGRenderStyle& svgStyle = style->svgStyle();
return svgStyle.stopColor().combineWithAlpha(svgStyle.stopOpacity());
}
} // namespace blink
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