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/*
Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if ENABLE(SVG) && ENABLE(SVG_FILTERS)
#include "SVGFEDiffuseLightingElement.h"
#include "Attr.h"
#include "RenderObject.h"
#include "SVGColor.h"
#include "SVGFELightElement.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include "SVGRenderStyle.h"
#include "SVGFEDiffuseLighting.h"
#include "SVGResourceFilter.h"
namespace WebCore {
SVGFEDiffuseLightingElement::SVGFEDiffuseLightingElement(const QualifiedName& tagName, Document* doc)
: SVGFilterPrimitiveStandardAttributes(tagName, doc)
, m_diffuseConstant(1.0f)
, m_surfaceScale(1.0f)
, m_kernelUnitLengthX(0.0f)
, m_kernelUnitLengthY(0.0f)
, m_filterEffect(0)
{
}
SVGFEDiffuseLightingElement::~SVGFEDiffuseLightingElement()
{
delete m_filterEffect;
}
ANIMATED_PROPERTY_DEFINITIONS(SVGFEDiffuseLightingElement, String, String, string, In1, in1, SVGNames::inAttr, m_in1)
ANIMATED_PROPERTY_DEFINITIONS(SVGFEDiffuseLightingElement, float, Number, number, DiffuseConstant, diffuseConstant, SVGNames::diffuseConstantAttr, m_diffuseConstant)
ANIMATED_PROPERTY_DEFINITIONS(SVGFEDiffuseLightingElement, float, Number, number, SurfaceScale, surfaceScale, SVGNames::surfaceScaleAttr, m_surfaceScale)
ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGFEDiffuseLightingElement, float, Number, number, KernelUnitLengthX, kernelUnitLengthX, SVGNames::kernelUnitLengthAttr, "kernelUnitLengthX", m_kernelUnitLengthX)
ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGFEDiffuseLightingElement, float, Number, number, KernelUnitLengthY, kernelUnitLengthY, SVGNames::kernelUnitLengthAttr, "kernelUnitLengthY", m_kernelUnitLengthY)
void SVGFEDiffuseLightingElement::parseMappedAttribute(MappedAttribute *attr)
{
const String& value = attr->value();
if (attr->name() == SVGNames::inAttr)
setIn1BaseValue(value);
else if (attr->name() == SVGNames::surfaceScaleAttr)
setSurfaceScaleBaseValue(value.toFloat());
else if (attr->name() == SVGNames::diffuseConstantAttr)
setDiffuseConstantBaseValue(value.toInt());
else if (attr->name() == SVGNames::kernelUnitLengthAttr) {
float x, y;
if (parseNumberOptionalNumber(value, x, y)) {
setKernelUnitLengthXBaseValue(x);
setKernelUnitLengthYBaseValue(y);
}
} else
SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
}
SVGFilterEffect* SVGFEDiffuseLightingElement::filterEffect(SVGResourceFilter* filter) const
{
if (!m_filterEffect)
m_filterEffect = new SVGFEDiffuseLighting(filter);
m_filterEffect->setIn(in1());
m_filterEffect->setDiffuseConstant(diffuseConstant());
m_filterEffect->setSurfaceScale(surfaceScale());
m_filterEffect->setKernelUnitLengthX(kernelUnitLengthX());
m_filterEffect->setKernelUnitLengthY(kernelUnitLengthY());
SVGFEDiffuseLightingElement* nonConstThis = const_cast<SVGFEDiffuseLightingElement*>(this);
RenderStyle* parentStyle = nonConstThis->styleForRenderer(parent()->renderer());
RenderStyle* filterStyle = nonConstThis->resolveStyle(parentStyle);
m_filterEffect->setLightingColor(filterStyle->svgStyle()->lightingColor());
setStandardAttributes(m_filterEffect);
parentStyle->deref(document()->renderArena());
filterStyle->deref(document()->renderArena());
updateLights();
return m_filterEffect;
}
void SVGFEDiffuseLightingElement::updateLights() const
{
if (!m_filterEffect)
return;
SVGLightSource* light = 0;
for (Node* n = firstChild(); n; n = n->nextSibling()) {
if (n->hasTagName(SVGNames::feDistantLightTag) ||
n->hasTagName(SVGNames::fePointLightTag) ||
n->hasTagName(SVGNames::feSpotLightTag)) {
SVGFELightElement* lightNode = static_cast<SVGFELightElement*>(n);
light = lightNode->lightSource();
break;
}
}
m_filterEffect->setLightSource(light);
}
}
#endif // ENABLE(SVG)
// vim:ts=4:noet
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