SVGFEOffsetElement.cpp [plain text]
#include "config.h"
#if ENABLE(FILTERS)
#include "SVGFEOffsetElement.h"
#include "Attribute.h"
#include "FilterEffect.h"
#include "SVGElementInstance.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
DEFINE_ANIMATED_STRING(SVGFEOffsetElement, SVGNames::inAttr, In1, in1)
DEFINE_ANIMATED_NUMBER(SVGFEOffsetElement, SVGNames::dxAttr, Dx, dx)
DEFINE_ANIMATED_NUMBER(SVGFEOffsetElement, SVGNames::dyAttr, Dy, dy)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEOffsetElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_LOCAL_ANIMATED_PROPERTY(dx)
REGISTER_LOCAL_ANIMATED_PROPERTY(dy)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEOffsetElement::SVGFEOffsetElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feOffsetTag));
registerAnimatedPropertiesForSVGFEOffsetElement();
}
PassRefPtr<SVGFEOffsetElement> SVGFEOffsetElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGFEOffsetElement(tagName, document));
}
bool SVGFEOffsetElement::isSupportedAttribute(const QualifiedName& attrName)
{
static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
if (supportedAttributes.get().isEmpty()) {
supportedAttributes.get().add(SVGNames::inAttr);
supportedAttributes.get().add(SVGNames::dxAttr);
supportedAttributes.get().add(SVGNames::dyAttr);
}
return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEOffsetElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
if (name == SVGNames::dxAttr) {
setDxBaseValue(value.toFloat());
return;
}
if (name == SVGNames::dyAttr) {
setDyBaseValue(value.toFloat());
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
ASSERT_NOT_REACHED();
}
void SVGFEOffsetElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::inAttr || attrName == SVGNames::dxAttr || attrName == SVGNames::dyAttr) {
invalidate();
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEOffsetElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
if (!input1)
return 0;
RefPtr<FilterEffect> effect = FEOffset::create(filter, dx(), dy());
effect->inputEffects().append(input1);
return effect.release();
}
}
#endif // ENABLE(FILTERS)