SVGFEDisplacementMapElement.cpp [plain text]
#include "config.h"
#if ENABLE(FILTERS)
#include "SVGFEDisplacementMapElement.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(SVGFEDisplacementMapElement, SVGNames::inAttr, In1, in1)
DEFINE_ANIMATED_STRING(SVGFEDisplacementMapElement, SVGNames::in2Attr, In2, in2)
DEFINE_ANIMATED_ENUMERATION(SVGFEDisplacementMapElement, SVGNames::xChannelSelectorAttr, XChannelSelector, xChannelSelector, ChannelSelectorType)
DEFINE_ANIMATED_ENUMERATION(SVGFEDisplacementMapElement, SVGNames::yChannelSelectorAttr, YChannelSelector, yChannelSelector, ChannelSelectorType)
DEFINE_ANIMATED_NUMBER(SVGFEDisplacementMapElement, SVGNames::scaleAttr, Scale, scale)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEDisplacementMapElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_LOCAL_ANIMATED_PROPERTY(in2)
REGISTER_LOCAL_ANIMATED_PROPERTY(xChannelSelector)
REGISTER_LOCAL_ANIMATED_PROPERTY(yChannelSelector)
REGISTER_LOCAL_ANIMATED_PROPERTY(scale)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
, m_xChannelSelector(CHANNEL_A)
, m_yChannelSelector(CHANNEL_A)
{
ASSERT(hasTagName(SVGNames::feDisplacementMapTag));
registerAnimatedPropertiesForSVGFEDisplacementMapElement();
}
PassRefPtr<SVGFEDisplacementMapElement> SVGFEDisplacementMapElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGFEDisplacementMapElement(tagName, document));
}
bool SVGFEDisplacementMapElement::isSupportedAttribute(const QualifiedName& attrName)
{
static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
if (supportedAttributes.get().isEmpty()) {
supportedAttributes.get().add(SVGNames::inAttr);
supportedAttributes.get().add(SVGNames::in2Attr);
supportedAttributes.get().add(SVGNames::xChannelSelectorAttr);
supportedAttributes.get().add(SVGNames::yChannelSelectorAttr);
supportedAttributes.get().add(SVGNames::scaleAttr);
}
return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
if (name == SVGNames::xChannelSelectorAttr) {
ChannelSelectorType propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
if (propertyValue > 0)
setXChannelSelectorBaseValue(propertyValue);
return;
}
if (name == SVGNames::yChannelSelectorAttr) {
ChannelSelectorType propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
if (propertyValue > 0)
setYChannelSelectorBaseValue(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
if (name == SVGNames::in2Attr) {
setIn2BaseValue(value);
return;
}
if (name == SVGNames::scaleAttr) {
setScaleBaseValue(value.toFloat());
return;
}
ASSERT_NOT_REACHED();
}
bool SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEDisplacementMap* displacementMap = static_cast<FEDisplacementMap*>(effect);
if (attrName == SVGNames::xChannelSelectorAttr)
return displacementMap->setXChannelSelector(xChannelSelector());
if (attrName == SVGNames::yChannelSelectorAttr)
return displacementMap->setYChannelSelector(yChannelSelector());
if (attrName == SVGNames::scaleAttr)
return displacementMap->setScale(scale());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
invalidate();
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
FilterEffect* input2 = filterBuilder->getEffectById(in2());
if (!input1 || !input2)
return 0;
RefPtr<FilterEffect> effect = FEDisplacementMap::create(filter, xChannelSelector(), yChannelSelector(), scale());
FilterEffectVector& inputEffects = effect->inputEffects();
inputEffects.reserveCapacity(2);
inputEffects.append(input1);
inputEffects.append(input2);
return effect.release();
}
}
#endif // ENABLE(FILTERS)