SVGFEComponentTransferElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG) && ENABLE(FILTERS)
#include "SVGFEComponentTransferElement.h"
#include "Attr.h"
#include "FilterEffect.h"
#include "SVGFEFuncAElement.h"
#include "SVGFEFuncBElement.h"
#include "SVGFEFuncGElement.h"
#include "SVGFEFuncRElement.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.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)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty())
supportedAttributes.add(SVGNames::inAttr);
return supportedAttributes.contains<QualifiedName, SVGAttributeHashTranslator>(attrName);
}
void SVGFEComponentTransferElement::parseAttribute(Attribute* attr)
{
if (!isSupportedAttribute(attr->name())) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(attr);
return;
}
const AtomicString& value = attr->value();
if (attr->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 0;
ComponentTransferFunction red;
ComponentTransferFunction green;
ComponentTransferFunction blue;
ComponentTransferFunction alpha;
for (Node* node = firstChild(); node; node = node->nextSibling()) {
if (node->hasTagName(SVGNames::feFuncRTag))
red = static_cast<SVGFEFuncRElement*>(node)->transferFunction();
else if (node->hasTagName(SVGNames::feFuncGTag))
green = static_cast<SVGFEFuncGElement*>(node)->transferFunction();
else if (node->hasTagName(SVGNames::feFuncBTag))
blue = static_cast<SVGFEFuncBElement*>(node)->transferFunction();
else if (node->hasTagName(SVGNames::feFuncATag))
alpha = static_cast<SVGFEFuncAElement*>(node)->transferFunction();
}
RefPtr<FilterEffect> effect = FEComponentTransfer::create(filter, red, green, blue, alpha);
effect->inputEffects().append(input1);
return effect.release();
}
}
#endif