This source file includes following definitions.
- m_mode
- create
- isSupportedAttribute
- parseAttribute
- setFilterEffectAttribute
- svgAttributeChanged
- build
#include "config.h"
#include "core/svg/SVGFEBlendElement.h"
#include "SVGNames.h"
#include "platform/graphics/filters/FilterEffect.h"
#include "core/svg/SVGElementInstance.h"
#include "core/svg/graphics/filters/SVGFilterBuilder.h"
namespace WebCore {
template<> const SVGEnumerationStringEntries& getStaticStringEntries<BlendModeType>()
{
DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
if (entries.isEmpty()) {
entries.append(std::make_pair(FEBLEND_MODE_UNKNOWN, emptyString()));
entries.append(std::make_pair(FEBLEND_MODE_NORMAL, "normal"));
entries.append(std::make_pair(FEBLEND_MODE_MULTIPLY, "multiply"));
entries.append(std::make_pair(FEBLEND_MODE_SCREEN, "screen"));
entries.append(std::make_pair(FEBLEND_MODE_DARKEN, "darken"));
entries.append(std::make_pair(FEBLEND_MODE_LIGHTEN, "lighten"));
}
return entries;
}
inline SVGFEBlendElement::SVGFEBlendElement(Document& document)
: SVGFilterPrimitiveStandardAttributes(SVGNames::feBlendTag, document)
, m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
, m_in2(SVGAnimatedString::create(this, SVGNames::in2Attr, SVGString::create()))
, m_mode(SVGAnimatedEnumeration<BlendModeType>::create(this, SVGNames::modeAttr, FEBLEND_MODE_NORMAL))
{
ScriptWrappable::init(this);
addToPropertyMap(m_in1);
addToPropertyMap(m_in2);
addToPropertyMap(m_mode);
}
PassRefPtr<SVGFEBlendElement> SVGFEBlendElement::create(Document& document)
{
return adoptRef(new SVGFEBlendElement(document));
}
bool SVGFEBlendElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty()) {
supportedAttributes.add(SVGNames::modeAttr);
supportedAttributes.add(SVGNames::inAttr);
supportedAttributes.add(SVGNames::in2Attr);
}
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEBlendElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
SVGParsingError parseError = NoError;
if (name == SVGNames::inAttr)
m_in1->setBaseValueAsString(value, parseError);
else if (name == SVGNames::in2Attr)
m_in2->setBaseValueAsString(value, parseError);
else if (name == SVGNames::modeAttr)
m_mode->setBaseValueAsString(value, parseError);
else
ASSERT_NOT_REACHED();
reportAttributeParsingError(parseError, name, value);
}
bool SVGFEBlendElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEBlend* blend = static_cast<FEBlend*>(effect);
if (attrName == SVGNames::modeAttr)
return blend->setBlendMode(m_mode->currentValue()->enumValue());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEBlendElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::modeAttr) {
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
invalidate();
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEBlendElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
FilterEffect* input2 = filterBuilder->getEffectById(AtomicString(m_in2->currentValue()->value()));
if (!input1 || !input2)
return nullptr;
RefPtr<FilterEffect> effect = FEBlend::create(filter, m_mode->currentValue()->enumValue());
FilterEffectVector& inputEffects = effect->inputEffects();
inputEffects.reserveCapacity(2);
inputEffects.append(input1);
inputEffects.append(input2);
return effect.release();
}
}