SVGFEComponentTransferElement.cpp [plain text]
#include "config.h"
#if ENABLE(FILTERS)
#include "SVGFEComponentTransferElement.h"
#include "Attr.h"
#include "ElementIterator.h"
#include "FilterEffect.h"
#include "SVGFEFuncAElement.h"
#include "SVGFEFuncBElement.h"
#include "SVGFEFuncGElement.h"
#include "SVGFEFuncRElement.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
DEFINE_ANIMATED_STRING(SVGFEComponentTransferElement, SVGNames::inAttr, In1, in1)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEComponentTransferElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEComponentTransferElement::SVGFEComponentTransferElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feComponentTransferTag));
registerAnimatedPropertiesForSVGFEComponentTransferElement();
}
PassRefPtr<SVGFEComponentTransferElement> SVGFEComponentTransferElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGFEComponentTransferElement(tagName, document));
}
bool SVGFEComponentTransferElement::isSupportedAttribute(const QualifiedName& attrName)
{
static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
if (supportedAttributes.get().isEmpty())
supportedAttributes.get().add(SVGNames::inAttr);
return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEComponentTransferElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEComponentTransferElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
if (!input1)
return nullptr;
ComponentTransferFunction red;
ComponentTransferFunction green;
ComponentTransferFunction blue;
ComponentTransferFunction alpha;
for (auto& child : childrenOfType<SVGElement>(*this)) {
if (isSVGFEFuncRElement(child))
red = toSVGFEFuncRElement(child).transferFunction();
else if (isSVGFEFuncGElement(child))
green = toSVGFEFuncGElement(child).transferFunction();
else if (isSVGFEFuncBElement(child))
blue = toSVGFEFuncBElement(child).transferFunction();
else if (isSVGFEFuncAElement(child))
alpha = toSVGFEFuncAElement(child).transferFunction();
}
RefPtr<FilterEffect> effect = FEComponentTransfer::create(filter, red, green, blue, alpha);
effect->inputEffects().append(input1);
return effect.release();
}
}
#endif