SVGFEColorMatrixElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG) && ENABLE(FILTERS)
#include "SVGFEColorMatrixElement.h"
#include "Attribute.h"
#include "FilterEffect.h"
#include "SVGElementInstance.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
namespace WebCore {
DEFINE_ANIMATED_STRING(SVGFEColorMatrixElement, SVGNames::inAttr, In1, in1)
DEFINE_ANIMATED_ENUMERATION(SVGFEColorMatrixElement, SVGNames::typeAttr, Type, type, ColorMatrixType)
DEFINE_ANIMATED_NUMBER_LIST(SVGFEColorMatrixElement, SVGNames::valuesAttr, Values, values)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEColorMatrixElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_LOCAL_ANIMATED_PROPERTY(type)
REGISTER_LOCAL_ANIMATED_PROPERTY(values)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEColorMatrixElement::SVGFEColorMatrixElement(const QualifiedName& tagName, Document* document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
, m_type(FECOLORMATRIX_TYPE_MATRIX)
{
ASSERT(hasTagName(SVGNames::feColorMatrixTag));
registerAnimatedPropertiesForSVGFEColorMatrixElement();
}
PassRefPtr<SVGFEColorMatrixElement> SVGFEColorMatrixElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new SVGFEColorMatrixElement(tagName, document));
}
bool SVGFEColorMatrixElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty()) {
supportedAttributes.add(SVGNames::typeAttr);
supportedAttributes.add(SVGNames::valuesAttr);
supportedAttributes.add(SVGNames::inAttr);
}
return supportedAttributes.contains<QualifiedName, SVGAttributeHashTranslator>(attrName);
}
void SVGFEColorMatrixElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
if (name == SVGNames::typeAttr) {
ColorMatrixType propertyValue = SVGPropertyTraits<ColorMatrixType>::fromString(value);
if (propertyValue > 0)
setTypeBaseValue(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
if (name == SVGNames::valuesAttr) {
SVGNumberList newList;
newList.parse(value);
detachAnimatedValuesListWrappers(newList.size());
setValuesBaseValue(newList);
return;
}
ASSERT_NOT_REACHED();
}
bool SVGFEColorMatrixElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEColorMatrix* colorMatrix = static_cast<FEColorMatrix*>(effect);
if (attrName == SVGNames::typeAttr)
return colorMatrix->setType(type());
if (attrName == SVGNames::valuesAttr)
return colorMatrix->setValues(values());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEColorMatrixElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::typeAttr || attrName == SVGNames::valuesAttr) {
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr) {
invalidate();
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEColorMatrixElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
if (!input1)
return 0;
Vector<float> filterValues;
ColorMatrixType filterType = type();
if (!hasAttribute(SVGNames::valuesAttr)) {
switch (filterType) {
case FECOLORMATRIX_TYPE_MATRIX:
for (size_t i = 0; i < 20; i++)
filterValues.append((i % 6) ? 0 : 1);
break;
case FECOLORMATRIX_TYPE_HUEROTATE:
filterValues.append(0);
break;
case FECOLORMATRIX_TYPE_SATURATE:
filterValues.append(1);
break;
default:
break;
}
} else {
filterValues = values();
unsigned size = filterValues.size();
if ((filterType == FECOLORMATRIX_TYPE_MATRIX && size != 20)
|| (filterType == FECOLORMATRIX_TYPE_HUEROTATE && size != 1)
|| (filterType == FECOLORMATRIX_TYPE_SATURATE && size != 1))
return 0;
}
RefPtr<FilterEffect> effect = FEColorMatrix::create(filter, filterType, filterValues);
effect->inputEffects().append(input1);
return effect.release();
}
}
#endif // ENABLE(SVG)