SVGFEMorphologyElement.cpp [plain text]
#include "config.h"
#include "SVGFEMorphologyElement.h"
#include "FilterEffect.h"
#include "SVGFilterBuilder.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));
registerAttributes();
}
Ref<SVGFEMorphologyElement> SVGFEMorphologyElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEMorphologyElement(tagName, document));
}
const AtomicString& SVGFEMorphologyElement::radiusXIdentifier()
{
static NeverDestroyed<AtomicString> s_identifier("SVGRadiusX", AtomicString::ConstructFromLiteral);
return s_identifier;
}
const AtomicString& SVGFEMorphologyElement::radiusYIdentifier()
{
static NeverDestroyed<AtomicString> s_identifier("SVGRadiusY", AtomicString::ConstructFromLiteral);
return s_identifier;
}
void SVGFEMorphologyElement::setRadius(float x, float y)
{
m_radiusX.setValue(x);
m_radiusY.setValue(y);
invalidate();
}
void SVGFEMorphologyElement::registerAttributes()
{
auto& registry = attributeRegistry();
if (!registry.isEmpty())
return;
registry.registerAttribute<SVGNames::inAttr, &SVGFEMorphologyElement::m_in1>();
registry.registerAttribute<SVGNames::operatorAttr, MorphologyOperatorType, &SVGFEMorphologyElement::m_svgOperator>();
registry.registerAttribute<SVGNames::radiusAttr,
&SVGFEMorphologyElement::radiusXIdentifier, &SVGFEMorphologyElement::m_radiusX,
&SVGFEMorphologyElement::radiusYIdentifier, &SVGFEMorphologyElement::m_radiusY>();
}
void SVGFEMorphologyElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == SVGNames::operatorAttr) {
MorphologyOperatorType propertyValue = SVGPropertyTraits<MorphologyOperatorType>::fromString(value);
if (propertyValue > 0)
m_svgOperator.setValue(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
m_in1.setValue(value);
return;
}
if (name == SVGNames::radiusAttr) {
float x, y;
if (parseNumberOptionalNumber(value, x, y)) {
m_radiusX.setValue(x);
m_radiusY.setValue(y);
}
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
bool SVGFEMorphologyElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEMorphology* morphology = static_cast<FEMorphology*>(effect);
if (attrName == SVGNames::operatorAttr)
return morphology->setMorphologyOperator(svgOperator());
if (attrName == SVGNames::radiusAttr) {
bool isRadiusXChanged = morphology->setRadiusX(radiusX());
bool isRadiusYChanged = morphology->setRadiusY(radiusY());
return isRadiusXChanged || isRadiusYChanged;
}
ASSERT_NOT_REACHED();
return false;
}
void SVGFEMorphologyElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::operatorAttr || attrName == SVGNames::radiusAttr) {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr) {
InstanceInvalidationGuard guard(*this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEMorphologyElement::build(SVGFilterBuilder* filterBuilder, Filter& filter)
{
auto input1 = filterBuilder->getEffectById(in1());
float xRadius = radiusX();
float yRadius = radiusY();
if (!input1)
return nullptr;
if (xRadius < 0 || yRadius < 0)
return nullptr;
auto effect = FEMorphology::create(filter, svgOperator(), xRadius, yRadius);
effect->inputEffects().append(input1);
return WTFMove(effect);
}
}