SVGFEDiffuseLightingElement.cpp [plain text]
#include "config.h"
#include "SVGFEDiffuseLightingElement.h"
#include "FEDiffuseLighting.h"
#include "FilterEffect.h"
#include "RenderStyle.h"
#include "SVGFELightElement.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEDiffuseLightingElement);
inline SVGFEDiffuseLightingElement::SVGFEDiffuseLightingElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
{
ASSERT(hasTagName(SVGNames::feDiffuseLightingTag));
registerAttributes();
}
Ref<SVGFEDiffuseLightingElement> SVGFEDiffuseLightingElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEDiffuseLightingElement(tagName, document));
}
const AtomicString& SVGFEDiffuseLightingElement::kernelUnitLengthXIdentifier()
{
static NeverDestroyed<AtomicString> s_identifier("SVGKernelUnitLengthX", AtomicString::ConstructFromLiteral);
return s_identifier;
}
const AtomicString& SVGFEDiffuseLightingElement::kernelUnitLengthYIdentifier()
{
static NeverDestroyed<AtomicString> s_identifier("SVGKernelUnitLengthY", AtomicString::ConstructFromLiteral);
return s_identifier;
}
void SVGFEDiffuseLightingElement::registerAttributes()
{
auto& registry = attributeRegistry();
if (!registry.isEmpty())
return;
registry.registerAttribute<SVGNames::inAttr, &SVGFEDiffuseLightingElement::m_in1>();
registry.registerAttribute<SVGNames::diffuseConstantAttr, &SVGFEDiffuseLightingElement::m_diffuseConstant>();
registry.registerAttribute<SVGNames::surfaceScaleAttr, &SVGFEDiffuseLightingElement::m_surfaceScale>();
registry.registerAttribute<SVGNames::kernelUnitLengthAttr,
&SVGFEDiffuseLightingElement::kernelUnitLengthXIdentifier, &SVGFEDiffuseLightingElement::m_kernelUnitLengthX,
&SVGFEDiffuseLightingElement::kernelUnitLengthYIdentifier, &SVGFEDiffuseLightingElement::m_kernelUnitLengthY>();
}
void SVGFEDiffuseLightingElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == SVGNames::inAttr) {
m_in1.setValue(value);
return;
}
if (name == SVGNames::surfaceScaleAttr) {
m_surfaceScale.setValue(value.toFloat());
return;
}
if (name == SVGNames::diffuseConstantAttr) {
m_diffuseConstant.setValue(value.toFloat());
return;
}
if (name == SVGNames::kernelUnitLengthAttr) {
float x, y;
if (parseNumberOptionalNumber(value, x, y)) {
m_kernelUnitLengthX.setValue(x);
m_kernelUnitLengthY.setValue(y);
}
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
bool SVGFEDiffuseLightingElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEDiffuseLighting* diffuseLighting = static_cast<FEDiffuseLighting*>(effect);
if (attrName == SVGNames::lighting_colorAttr) {
RenderObject* renderer = this->renderer();
ASSERT(renderer);
Color color = renderer->style().colorByApplyingColorFilter(renderer->style().svgStyle().lightingColor());
return diffuseLighting->setLightingColor(color);
}
if (attrName == SVGNames::surfaceScaleAttr)
return diffuseLighting->setSurfaceScale(surfaceScale());
if (attrName == SVGNames::diffuseConstantAttr)
return diffuseLighting->setDiffuseConstant(diffuseConstant());
auto& lightSource = const_cast<LightSource&>(diffuseLighting->lightSource());
const SVGFELightElement* lightElement = SVGFELightElement::findLightElement(this);
ASSERT(lightElement);
if (attrName == SVGNames::azimuthAttr)
return lightSource.setAzimuth(lightElement->azimuth());
if (attrName == SVGNames::elevationAttr)
return lightSource.setElevation(lightElement->elevation());
if (attrName == SVGNames::xAttr)
return lightSource.setX(lightElement->x());
if (attrName == SVGNames::yAttr)
return lightSource.setY(lightElement->y());
if (attrName == SVGNames::zAttr)
return lightSource.setZ(lightElement->z());
if (attrName == SVGNames::pointsAtXAttr)
return lightSource.setPointsAtX(lightElement->pointsAtX());
if (attrName == SVGNames::pointsAtYAttr)
return lightSource.setPointsAtY(lightElement->pointsAtY());
if (attrName == SVGNames::pointsAtZAttr)
return lightSource.setPointsAtZ(lightElement->pointsAtZ());
if (attrName == SVGNames::specularExponentAttr)
return lightSource.setSpecularExponent(lightElement->specularExponent());
if (attrName == SVGNames::limitingConeAngleAttr)
return lightSource.setLimitingConeAngle(lightElement->limitingConeAngle());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEDiffuseLightingElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::surfaceScaleAttr || attrName == SVGNames::diffuseConstantAttr || attrName == SVGNames::kernelUnitLengthAttr || attrName == SVGNames::lighting_colorAttr) {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr) {
InstanceInvalidationGuard guard(*this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
void SVGFEDiffuseLightingElement::lightElementAttributeChanged(const SVGFELightElement* lightElement, const QualifiedName& attrName)
{
if (SVGFELightElement::findLightElement(this) != lightElement)
return;
primitiveAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEDiffuseLightingElement::build(SVGFilterBuilder* filterBuilder, Filter& filter)
{
auto input1 = filterBuilder->getEffectById(in1());
if (!input1)
return nullptr;
auto lightElement = makeRefPtr(SVGFELightElement::findLightElement(this));
if (!lightElement)
return nullptr;
auto lightSource = lightElement->lightSource(*filterBuilder);
RenderObject* renderer = this->renderer();
if (!renderer)
return nullptr;
Color color = renderer->style().colorByApplyingColorFilter(renderer->style().svgStyle().lightingColor());
auto effect = FEDiffuseLighting::create(filter, color, surfaceScale(), diffuseConstant(), kernelUnitLengthX(), kernelUnitLengthY(), WTFMove(lightSource));
effect->inputEffects().append(input1);
return WTFMove(effect);
}
}