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/*
* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
* Copyright (C) 2005 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 "SVGFESpecularLightingElement.h"
#include "FESpecularLighting.h"
#include "NodeName.h"
#include "RenderElement.h"
#include "RenderStyle.h"
#include "SVGFELightElement.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include "SVGRenderStyle.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(SVGFESpecularLightingElement);
inline SVGFESpecularLightingElement::SVGFESpecularLightingElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document, makeUniqueRef<PropertyRegistry>(*this))
{
ASSERT(hasTagName(SVGNames::feSpecularLightingTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFESpecularLightingElement::m_in1>();
PropertyRegistry::registerProperty<SVGNames::specularConstantAttr, &SVGFESpecularLightingElement::m_specularConstant>();
PropertyRegistry::registerProperty<SVGNames::specularExponentAttr, &SVGFESpecularLightingElement::m_specularExponent>();
PropertyRegistry::registerProperty<SVGNames::surfaceScaleAttr, &SVGFESpecularLightingElement::m_surfaceScale>();
PropertyRegistry::registerProperty<SVGNames::kernelUnitLengthAttr, &SVGFESpecularLightingElement::m_kernelUnitLengthX, &SVGFESpecularLightingElement::m_kernelUnitLengthY>();
});
}
Ref<SVGFESpecularLightingElement> SVGFESpecularLightingElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFESpecularLightingElement(tagName, document));
}
void SVGFESpecularLightingElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason attributeModificationReason)
{
switch (name.nodeName()) {
case AttributeNames::inAttr:
Ref { m_in1 }->setBaseValInternal(newValue);
break;
case AttributeNames::surfaceScaleAttr:
Ref { m_surfaceScale }->setBaseValInternal(newValue.toFloat());
break;
case AttributeNames::specularConstantAttr:
Ref { m_specularConstant }->setBaseValInternal(newValue.toFloat());
break;
case AttributeNames::specularExponentAttr:
Ref { m_specularExponent }->setBaseValInternal(newValue.toFloat());
break;
case AttributeNames::kernelUnitLengthAttr:
if (auto result = parseNumberOptionalNumber(newValue)) {
Ref { m_kernelUnitLengthX }->setBaseValInternal(result->first);
Ref { m_kernelUnitLengthY }->setBaseValInternal(result->second);
}
break;
default:
break;
}
SVGFilterPrimitiveStandardAttributes::attributeChanged(name, oldValue, newValue, attributeModificationReason);
}
bool SVGFESpecularLightingElement::setFilterEffectAttribute(FilterEffect& filterEffect, const QualifiedName& attrName)
{
auto& effect = downcast<FESpecularLighting>(filterEffect);
auto lightElement = [this] {
return SVGFELightElement::findLightElement(this);
};
switch (attrName.nodeName()) {
case AttributeNames::lighting_colorAttr: {
auto& style = renderer()->style();
auto color = style.colorWithColorFilter(style.svgStyle().lightingColor());
return effect.setLightingColor(color);
}
case AttributeNames::surfaceScaleAttr:
return effect.setSurfaceScale(surfaceScale());
case AttributeNames::specularConstantAttr:
return effect.setSpecularConstant(specularConstant());
case AttributeNames::specularExponentAttr:
return effect.setSpecularExponent(specularExponent());
case AttributeNames::azimuthAttr:
return effect.lightSource()->setAzimuth(lightElement()->azimuth());
case AttributeNames::elevationAttr:
return effect.lightSource()->setElevation(lightElement()->elevation());
case AttributeNames::xAttr:
return effect.lightSource()->setX(lightElement()->x());
case AttributeNames::yAttr:
return effect.lightSource()->setY(lightElement()->y());
case AttributeNames::zAttr:
return effect.lightSource()->setZ(lightElement()->z());
case AttributeNames::pointsAtXAttr:
return effect.lightSource()->setPointsAtX(lightElement()->pointsAtX());
case AttributeNames::pointsAtYAttr:
return effect.lightSource()->setPointsAtY(lightElement()->pointsAtY());
case AttributeNames::pointsAtZAttr:
return effect.lightSource()->setPointsAtZ(lightElement()->pointsAtZ());
case AttributeNames::limitingConeAngleAttr:
return effect.lightSource()->setLimitingConeAngle(lightElement()->limitingConeAngle());
default:
break;
}
ASSERT_NOT_REACHED();
return false;
}
void SVGFESpecularLightingElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isKnownAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
if (attrName == SVGNames::inAttr)
updateSVGRendererForElementChange();
else {
ASSERT(attrName == SVGNames::specularConstantAttr || attrName == SVGNames::specularExponentAttr || attrName == SVGNames::surfaceScaleAttr || attrName == SVGNames::kernelUnitLengthAttr);
primitiveAttributeChanged(attrName);
}
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
void SVGFESpecularLightingElement::lightElementAttributeChanged(const SVGFELightElement* lightElement, const QualifiedName& attrName)
{
if (SVGFELightElement::findLightElement(this) != lightElement)
return;
// The light element has different attribute names so attrName can identify the requested attribute.
primitiveAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFESpecularLightingElement::createFilterEffect(const FilterEffectVector&, const GraphicsContext&) const
{
RefPtr lightElement = SVGFELightElement::findLightElement(this);
if (!lightElement)
return nullptr;
CheckedPtr renderer = this->renderer();
if (!renderer)
return nullptr;
Ref lightSource = lightElement->lightSource();
auto& style = renderer->style();
auto color = style.colorWithColorFilter(style.svgStyle().lightingColor());
return FESpecularLighting::create(color, surfaceScale(), specularConstant(), specularExponent(), kernelUnitLengthX(), kernelUnitLengthY(), WTFMove(lightSource));
}
} // namespace WebCore
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