This source file includes following definitions.
- m_in1
- create
- setStdDeviation
- isSupportedAttribute
- parseAttribute
- svgAttributeChanged
- build
#include "config.h"
#include "core/svg/SVGFEGaussianBlurElement.h"
#include "SVGNames.h"
#include "platform/graphics/filters/FilterEffect.h"
#include "core/svg/SVGElementInstance.h"
#include "core/svg/SVGParserUtilities.h"
#include "core/svg/graphics/filters/SVGFilterBuilder.h"
namespace WebCore {
inline SVGFEGaussianBlurElement::SVGFEGaussianBlurElement(Document& document)
: SVGFilterPrimitiveStandardAttributes(SVGNames::feGaussianBlurTag, document)
, m_stdDeviation(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::stdDeviationAttr, 0, 0))
, m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
{
ScriptWrappable::init(this);
addToPropertyMap(m_stdDeviation);
addToPropertyMap(m_in1);
}
PassRefPtr<SVGFEGaussianBlurElement> SVGFEGaussianBlurElement::create(Document& document)
{
return adoptRef(new SVGFEGaussianBlurElement(document));
}
void SVGFEGaussianBlurElement::setStdDeviation(float x, float y)
{
stdDeviationX()->baseValue()->setValue(x);
stdDeviationY()->baseValue()->setValue(y);
invalidate();
}
bool SVGFEGaussianBlurElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty()) {
supportedAttributes.add(SVGNames::inAttr);
supportedAttributes.add(SVGNames::stdDeviationAttr);
}
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEGaussianBlurElement::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::stdDeviationAttr)
m_stdDeviation->setBaseValueAsString(value, parseError);
else
ASSERT_NOT_REACHED();
reportAttributeParsingError(parseError, name, value);
}
void SVGFEGaussianBlurElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::inAttr || attrName == SVGNames::stdDeviationAttr) {
invalidate();
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEGaussianBlurElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
if (!input1)
return nullptr;
if (stdDeviationX()->currentValue()->value() < 0 || stdDeviationY()->currentValue()->value() < 0)
return nullptr;
RefPtr<FilterEffect> effect = FEGaussianBlur::create(filter, stdDeviationX()->currentValue()->value(), stdDeviationY()->currentValue()->value());
effect->inputEffects().append(input1);
return effect.release();
}
}