third_party/WebKit/Source/core/svg/SVGFEFloodElement.cpp

/*
 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005, 2007, 2008 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 "core/svg/SVGFEFloodElement.h"

#include "core/SVGNames.h"
#include "core/layout/LayoutObject.h"
#include "core/style/ComputedStyle.h"
#include "core/style/SVGComputedStyle.h"
#include "platform/graphics/filters/FEFlood.h"

namespace blink {

inline SVGFEFloodElement::SVGFEFloodElement(Document& document)
    : SVGFilterPrimitiveStandardAttributes(SVGNames::feFloodTag, document)
{
}

DEFINE_NODE_FACTORY(SVGFEFloodElement)

bool SVGFEFloodElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
    LayoutObject* layoutObject = this->layoutObject();
    ASSERT(layoutObject);
    const ComputedStyle& style = layoutObject->styleRef();
    FEFlood* flood = static_cast<FEFlood*>(effect);

    if (attrName == SVGNames::flood_colorAttr)
        return flood->setFloodColor(style.svgStyle().floodColor());
    if (attrName == SVGNames::flood_opacityAttr)
        return flood->setFloodOpacity(style.svgStyle().floodOpacity());

    return SVGFilterPrimitiveStandardAttributes::setFilterEffectAttribute(effect, attrName);
}

FilterEffect* SVGFEFloodElement::build(SVGFilterBuilder*, Filter* filter)
{
    LayoutObject* layoutObject = this->layoutObject();
    if (!layoutObject)
        return nullptr;

    ASSERT(layoutObject->style());
    const SVGComputedStyle& svgStyle = layoutObject->style()->svgStyle();

    Color color = svgStyle.floodColor();
    float opacity = svgStyle.floodOpacity();

    return FEFlood::create(filter, color, opacity);
}

} // namespace blink