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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 "core/svg/SVGFEComponentTransferElement.h"
#include "core/SVGNames.h"
#include "core/dom/ElementTraversal.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"
#include "platform/graphics/filters/FEComponentTransfer.h"
namespace blink {
inline SVGFEComponentTransferElement::SVGFEComponentTransferElement(
Document& document)
: SVGFilterPrimitiveStandardAttributes(SVGNames::feComponentTransferTag,
document),
m_in1(SVGAnimatedString::create(this, SVGNames::inAttr)) {
addToPropertyMap(m_in1);
}
DEFINE_TRACE(SVGFEComponentTransferElement) {
visitor->trace(m_in1);
SVGFilterPrimitiveStandardAttributes::trace(visitor);
}
DEFINE_NODE_FACTORY(SVGFEComponentTransferElement)
void SVGFEComponentTransferElement::svgAttributeChanged(
const QualifiedName& attrName) {
if (attrName == SVGNames::inAttr) {
SVGElement::InvalidationGuard invalidationGuard(this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
FilterEffect* SVGFEComponentTransferElement::build(
SVGFilterBuilder* filterBuilder,
Filter* filter) {
FilterEffect* input1 = filterBuilder->getEffectById(
AtomicString(m_in1->currentValue()->value()));
ASSERT(input1);
ComponentTransferFunction red;
ComponentTransferFunction green;
ComponentTransferFunction blue;
ComponentTransferFunction alpha;
for (SVGElement* element = Traversal<SVGElement>::firstChild(*this); element;
element = Traversal<SVGElement>::nextSibling(*element)) {
if (isSVGFEFuncRElement(*element))
red = toSVGFEFuncRElement(*element).transferFunction();
else if (isSVGFEFuncGElement(*element))
green = toSVGFEFuncGElement(*element).transferFunction();
else if (isSVGFEFuncBElement(*element))
blue = toSVGFEFuncBElement(*element).transferFunction();
else if (isSVGFEFuncAElement(*element))
alpha = toSVGFEFuncAElement(*element).transferFunction();
}
FilterEffect* effect =
FEComponentTransfer::create(filter, red, green, blue, alpha);
effect->inputEffects().push_back(input1);
return effect;
}
} // namespace blink
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