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/*
* Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
* 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 "SVGFEMorphologyElement.h"
#include "FEMorphology.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEMorphologyElement);
inline SVGFEMorphologyElement::SVGFEMorphologyElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feMorphologyTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEMorphologyElement::m_in1>();
PropertyRegistry::registerProperty<SVGNames::operatorAttr, MorphologyOperatorType, &SVGFEMorphologyElement::m_svgOperator>();
PropertyRegistry::registerProperty<SVGNames::radiusAttr, &SVGFEMorphologyElement::m_radiusX, &SVGFEMorphologyElement::m_radiusY>();
});
}
Ref<SVGFEMorphologyElement> SVGFEMorphologyElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEMorphologyElement(tagName, document));
}
void SVGFEMorphologyElement::setRadius(float x, float y)
{
m_radiusX->setBaseValInternal(x);
m_radiusY->setBaseValInternal(y);
updateSVGRendererForElementChange();
}
void SVGFEMorphologyElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == SVGNames::operatorAttr) {
MorphologyOperatorType propertyValue = SVGPropertyTraits<MorphologyOperatorType>::fromString(value);
if (propertyValue != MorphologyOperatorType::Unknown)
m_svgOperator->setBaseValInternal<MorphologyOperatorType>(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
m_in1->setBaseValInternal(value);
return;
}
if (name == SVGNames::radiusAttr) {
if (auto result = parseNumberOptionalNumber(value)) {
m_radiusX->setBaseValInternal(result->first);
m_radiusY->setBaseValInternal(result->second);
}
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
bool SVGFEMorphologyElement::setFilterEffectAttribute(FilterEffect& effect, const QualifiedName& attrName)
{
auto& feMorphology = downcast<FEMorphology>(effect);
if (attrName == SVGNames::operatorAttr)
return feMorphology.setMorphologyOperator(svgOperator());
if (attrName == SVGNames::radiusAttr) {
// Both setRadius functions should be evaluated separately.
bool isRadiusXChanged = feMorphology.setRadiusX(radiusX());
bool isRadiusYChanged = feMorphology.setRadiusY(radiusY());
return isRadiusXChanged || isRadiusYChanged;
}
ASSERT_NOT_REACHED();
return false;
}
void SVGFEMorphologyElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::inAttr) {
InstanceInvalidationGuard guard(*this);
updateSVGRendererForElementChange();
return;
}
if (attrName == SVGNames::operatorAttr || attrName == SVGNames::radiusAttr) {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
bool SVGFEMorphologyElement::isIdentity() const
{
return !radiusX() && !radiusY();
}
RefPtr<FilterEffect> SVGFEMorphologyElement::createFilterEffect(const FilterEffectVector&, const GraphicsContext&) const
{
if (radiusX() < 0 || radiusY() < 0)
return nullptr;
return FEMorphology::create(svgOperator(), radiusX(), radiusY());
}
} // namespace WebCore
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