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/*
* Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
* Copyright (C) 2018-2022 Apple Inc. 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"
#include "SVGFEDisplacementMapElement.h"
#include "FEDisplacementMap.h"
#include "SVGNames.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEDisplacementMapElement);
inline SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feDisplacementMapTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEDisplacementMapElement::m_in1>();
PropertyRegistry::registerProperty<SVGNames::in2Attr, &SVGFEDisplacementMapElement::m_in2>();
PropertyRegistry::registerProperty<SVGNames::xChannelSelectorAttr, ChannelSelectorType, &SVGFEDisplacementMapElement::m_xChannelSelector>();
PropertyRegistry::registerProperty<SVGNames::yChannelSelectorAttr, ChannelSelectorType, &SVGFEDisplacementMapElement::m_yChannelSelector>();
PropertyRegistry::registerProperty<SVGNames::scaleAttr, &SVGFEDisplacementMapElement::m_scale>();
});
}
Ref<SVGFEDisplacementMapElement> SVGFEDisplacementMapElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEDisplacementMapElement(tagName, document));
}
void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == SVGNames::xChannelSelectorAttr) {
auto propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
if (propertyValue > 0)
m_xChannelSelector->setBaseValInternal<ChannelSelectorType>(propertyValue);
return;
}
if (name == SVGNames::yChannelSelectorAttr) {
auto propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
if (propertyValue > 0)
m_yChannelSelector->setBaseValInternal<ChannelSelectorType>(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
m_in1->setBaseValInternal(value);
return;
}
if (name == SVGNames::in2Attr) {
m_in2->setBaseValInternal(value);
return;
}
if (name == SVGNames::scaleAttr) {
m_scale->setBaseValInternal(value.toFloat());
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
bool SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect& effect, const QualifiedName& attrName)
{
auto& feDisplacementMap = downcast<FEDisplacementMap>(effect);
if (attrName == SVGNames::xChannelSelectorAttr)
return feDisplacementMap.setXChannelSelector(xChannelSelector());
if (attrName == SVGNames::yChannelSelectorAttr)
return feDisplacementMap.setYChannelSelector(yChannelSelector());
if (attrName == SVGNames::scaleAttr)
return feDisplacementMap.setScale(scale());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
InstanceInvalidationGuard guard(*this);
updateSVGRendererForElementChange();
return;
}
if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEDisplacementMapElement::createFilterEffect(const FilterEffectVector&, const GraphicsContext&) const
{
return FEDisplacementMap::create(xChannelSelector(), yChannelSelector(), scale());
}
} // namespace WebCore
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