SVGFECompositeElement.cpp [plain text]
#include "config.h"
#include "SVGFECompositeElement.h"
#include "FilterEffect.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFECompositeElement);
inline SVGFECompositeElement::SVGFECompositeElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feCompositeTag));
registerAttributes();
}
Ref<SVGFECompositeElement> SVGFECompositeElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFECompositeElement(tagName, document));
}
void SVGFECompositeElement::registerAttributes()
{
auto& registry = attributeRegistry();
if (!registry.isEmpty())
return;
registry.registerAttribute<SVGNames::inAttr, &SVGFECompositeElement::m_in1>();
registry.registerAttribute<SVGNames::in2Attr, &SVGFECompositeElement::m_in2>();
registry.registerAttribute<SVGNames::operatorAttr, CompositeOperationType, &SVGFECompositeElement::m_svgOperator>();
registry.registerAttribute<SVGNames::k1Attr, &SVGFECompositeElement::m_k1>();
registry.registerAttribute<SVGNames::k2Attr, &SVGFECompositeElement::m_k2>();
registry.registerAttribute<SVGNames::k3Attr, &SVGFECompositeElement::m_k3>();
registry.registerAttribute<SVGNames::k4Attr, &SVGFECompositeElement::m_k4>();
}
void SVGFECompositeElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == SVGNames::operatorAttr) {
CompositeOperationType propertyValue = SVGPropertyTraits<CompositeOperationType>::fromString(value);
if (propertyValue > 0)
m_svgOperator.setValue(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
m_in1.setValue(value);
return;
}
if (name == SVGNames::in2Attr) {
m_in2.setValue(value);
return;
}
if (name == SVGNames::k1Attr) {
m_k1.setValue(value.toFloat());
return;
}
if (name == SVGNames::k2Attr) {
m_k2.setValue(value.toFloat());
return;
}
if (name == SVGNames::k3Attr) {
m_k3.setValue(value.toFloat());
return;
}
if (name == SVGNames::k4Attr) {
m_k4.setValue(value.toFloat());
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
bool SVGFECompositeElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEComposite* composite = static_cast<FEComposite*>(effect);
if (attrName == SVGNames::operatorAttr)
return composite->setOperation(svgOperator());
if (attrName == SVGNames::k1Attr)
return composite->setK1(k1());
if (attrName == SVGNames::k2Attr)
return composite->setK2(k2());
if (attrName == SVGNames::k3Attr)
return composite->setK3(k3());
if (attrName == SVGNames::k4Attr)
return composite->setK4(k4());
ASSERT_NOT_REACHED();
return false;
}
void SVGFECompositeElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::operatorAttr || attrName == SVGNames::k1Attr || attrName == SVGNames::k2Attr || attrName == SVGNames::k3Attr || attrName == SVGNames::k4Attr) {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
InstanceInvalidationGuard guard(*this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFECompositeElement::build(SVGFilterBuilder* filterBuilder, Filter& filter)
{
auto input1 = filterBuilder->getEffectById(in1());
auto input2 = filterBuilder->getEffectById(in2());
if (!input1 || !input2)
return nullptr;
auto effect = FEComposite::create(filter, svgOperator(), k1(), k2(), k3(), k4());
FilterEffectVector& inputEffects = effect->inputEffects();
inputEffects.reserveCapacity(2);
inputEffects.append(input1);
inputEffects.append(input2);
return WTFMove(effect);
}
}