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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/SVGFEComponentTransferElement.h"
#include "SVGNames.h"
#include "platform/graphics/filters/FilterEffect.h"
#include "core/svg/SVGFEFuncAElement.h"
#include "core/svg/SVGFEFuncBElement.h"
#include "core/svg/SVGFEFuncGElement.h"
#include "core/svg/SVGFEFuncRElement.h"
#include "core/svg/graphics/filters/SVGFilterBuilder.h"
namespace WebCore {
// Animated property definitions
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(Document& document)
: SVGFilterPrimitiveStandardAttributes(SVGNames::feComponentTransferTag, document)
{
ScriptWrappable::init(this);
registerAnimatedPropertiesForSVGFEComponentTransferElement();
}
PassRefPtr<SVGFEComponentTransferElement> SVGFEComponentTransferElement::create(Document& document)
{
return adoptRef(new SVGFEComponentTransferElement(document));
}
bool SVGFEComponentTransferElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty())
supportedAttributes.add(SVGNames::inAttr);
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFEComponentTransferElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
ASSERT_NOT_REACHED();
}
PassRefPtr<FilterEffect> SVGFEComponentTransferElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1CurrentValue());
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 = toSVGFEFuncRElement(node)->transferFunction();
else if (node->hasTagName(SVGNames::feFuncGTag))
green = toSVGFEFuncGElement(node)->transferFunction();
else if (node->hasTagName(SVGNames::feFuncBTag))
blue = toSVGFEFuncBElement(node)->transferFunction();
else if (node->hasTagName(SVGNames::feFuncATag))
alpha = toSVGFEFuncAElement(node)->transferFunction();
}
RefPtr<FilterEffect> effect = FEComponentTransfer::create(filter, red, green, blue, alpha);
effect->inputEffects().append(input1);
return effect.release();
}
}
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