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/*
* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
*
* 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"
#include "core/svg/SVGFEOffsetElement.h"
#include "SVGNames.h"
#include "platform/graphics/filters/FilterEffect.h"
#include "core/svg/SVGElementInstance.h"
#include "core/svg/graphics/filters/SVGFilterBuilder.h"
namespace WebCore {
// Animated property definitions
DEFINE_ANIMATED_STRING(SVGFEOffsetElement, SVGNames::inAttr, In1, in1)
DEFINE_ANIMATED_NUMBER(SVGFEOffsetElement, SVGNames::dxAttr, Dx, dx)
DEFINE_ANIMATED_NUMBER(SVGFEOffsetElement, SVGNames::dyAttr, Dy, dy)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEOffsetElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_LOCAL_ANIMATED_PROPERTY(dx)
REGISTER_LOCAL_ANIMATED_PROPERTY(dy)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEOffsetElement::SVGFEOffsetElement(Document& document)
: SVGFilterPrimitiveStandardAttributes(SVGNames::feOffsetTag, document)
{
ScriptWrappable::init(this);
registerAnimatedPropertiesForSVGFEOffsetElement();
}
PassRefPtr<SVGFEOffsetElement> SVGFEOffsetElement::create(Document& document)
{
return adoptRef(new SVGFEOffsetElement(document));
}
bool SVGFEOffsetElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty()) {
supportedAttributes.add(SVGNames::inAttr);
supportedAttributes.add(SVGNames::dxAttr);
supportedAttributes.add(SVGNames::dyAttr);
}
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEOffsetElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
if (name == SVGNames::dxAttr) {
setDxBaseValue(value.toFloat());
return;
}
if (name == SVGNames::dyAttr) {
setDyBaseValue(value.toFloat());
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
ASSERT_NOT_REACHED();
}
void SVGFEOffsetElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::inAttr || attrName == SVGNames::dxAttr || attrName == SVGNames::dyAttr) {
invalidate();
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEOffsetElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1CurrentValue());
if (!input1)
return 0;
RefPtr<FilterEffect> effect = FEOffset::create(filter, dxCurrentValue(), dyCurrentValue());
effect->inputEffects().append(input1);
return effect.release();
}
}
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