xref: /external/webkit/Source/WebCore/svg/SVGStopElement.cpp

/*
 * 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"

#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 {

// Animated property definitions
DEFINE_ANIMATED_NUMBER(SVGStopElement, SVGNames::offsetAttr, Offset, offset)

inline SVGStopElement::SVGStopElement(const QualifiedName& tagName, Document* document)
    : SVGStyledElement(tagName, document)
    , m_offset(0)
{
}

PassRefPtr<SVGStopElement> SVGStopElement::create(const QualifiedName& tagName, Document* document)
{
    return adoptRef(new SVGStopElement(tagName, document));
}

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();
}

AttributeToPropertyTypeMap& SVGStopElement::attributeToPropertyTypeMap()
{
    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
    return s_attributeToPropertyTypeMap;
}

void SVGStopElement::fillAttributeToPropertyTypeMap()
{
    AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();

    SVGStyledElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
    attributeToPropertyTypeMap.set(SVGNames::offsetAttr, AnimatedLength);
}

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)