This source file includes following definitions.
- m_in1
- create
- isSupportedAttribute
- parseAttribute
- build
#include "config.h"
#include "core/svg/SVGFEComponentTransferElement.h"
#include "SVGNames.h"
#include "core/dom/ElementTraversal.h"
#include "core/svg/SVGFEFuncAElement.h"
#include "core/svg/SVGFEFuncBElement.h"
#include "core/svg/SVGFEFuncGElement.h"
#include "core/svg/SVGFEFuncRElement.h"
#include "core/svg/graphics/filters/SVGFilterBuilder.h"
#include "platform/graphics/filters/FilterEffect.h"
namespace WebCore {
inline SVGFEComponentTransferElement::SVGFEComponentTransferElement(Document& document)
: SVGFilterPrimitiveStandardAttributes(SVGNames::feComponentTransferTag, document)
, m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
{
ScriptWrappable::init(this);
addToPropertyMap(m_in1);
}
PassRefPtr<SVGFEComponentTransferElement> SVGFEComponentTransferElement::create(Document& document)
{
return adoptRef(new SVGFEComponentTransferElement(document));
}
bool SVGFEComponentTransferElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty())
supportedAttributes.add(SVGNames::inAttr);
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEComponentTransferElement::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
ASSERT_NOT_REACHED();
reportAttributeParsingError(parseError, name, value);
}
PassRefPtr<FilterEffect> SVGFEComponentTransferElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
if (!input1)
return nullptr;
ComponentTransferFunction red;
ComponentTransferFunction green;
ComponentTransferFunction blue;
ComponentTransferFunction alpha;
for (SVGElement* element = Traversal<SVGElement>::firstChild(*this); element; element = Traversal<SVGElement>::nextSibling(*element)) {
if (isSVGFEFuncRElement(*element))
red = toSVGFEFuncRElement(*element).transferFunction();
else if (isSVGFEFuncGElement(*element))
green = toSVGFEFuncGElement(*element).transferFunction();
else if (isSVGFEFuncBElement(*element))
blue = toSVGFEFuncBElement(*element).transferFunction();
else if (isSVGFEFuncAElement(*element))
alpha = toSVGFEFuncAElement(*element).transferFunction();
}
RefPtr<FilterEffect> effect = FEComponentTransfer::create(filter, red, green, blue, alpha);
effect->inputEffects().append(input1);
return effect.release();
}
}