SVGFEOffsetElement.cpp [plain text]
#include "config.h"
#include "SVGFEOffsetElement.h"
#include "FEOffset.h"
#include "FilterEffect.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEOffsetElement);
inline SVGFEOffsetElement::SVGFEOffsetElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feOffsetTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEOffsetElement::m_in1>();
PropertyRegistry::registerProperty<SVGNames::dxAttr, &SVGFEOffsetElement::m_dx>();
PropertyRegistry::registerProperty<SVGNames::dyAttr, &SVGFEOffsetElement::m_dy>();
});
}
Ref<SVGFEOffsetElement> SVGFEOffsetElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEOffsetElement(tagName, document));
}
void SVGFEOffsetElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == SVGNames::dxAttr) {
m_dx->setBaseValInternal(value.toFloat());
return;
}
if (name == SVGNames::dyAttr) {
m_dy->setBaseValInternal(value.toFloat());
return;
}
if (name == SVGNames::inAttr) {
m_in1->setBaseValInternal(value);
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
void SVGFEOffsetElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isKnownAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEOffsetElement::build(SVGFilterBuilder* filterBuilder, Filter& filter) const
{
auto input1 = filterBuilder->getEffectById(in1());
if (!input1)
return nullptr;
auto effect = FEOffset::create(filter, dx(), dy());
effect->inputEffects().append(input1);
return effect;
}
}