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/*
* Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
* Copyright (C) 2005 Eric Seidel <eric@webkit.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"
#if ENABLE(SVG) && ENABLE(FILTERS)
#include "SVGFEMerge.h"
#include "Filter.h"
#include "GraphicsContext.h"
#include "SVGRenderTreeAsText.h"
namespace WebCore {
FEMerge::FEMerge()
: FilterEffect()
{
}
PassRefPtr<FEMerge> FEMerge::create()
{
return adoptRef(new FEMerge);
}
void FEMerge::apply(Filter* filter)
{
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
in->apply(filter);
if (!in->resultImage())
return;
}
GraphicsContext* filterContext = getEffectContext();
if (!filterContext)
return;
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
filterContext->drawImageBuffer(in->resultImage(), DeviceColorSpace, calculateDrawingRect(in->repaintRectInLocalCoordinates()));
}
}
void FEMerge::dump()
{
}
TextStream& FEMerge::externalRepresentation(TextStream& ts, int indent) const
{
writeIndent(ts, indent);
ts << "[feMerge";
FilterEffect::externalRepresentation(ts);
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
ts << " mergeNodes=\"" << size << "\"]\n";
for (unsigned i = 0; i < size; ++i)
inputEffect(i)->externalRepresentation(ts, indent + 1);
return ts;
}
} // namespace WebCore
#endif // ENABLE(SVG) && ENABLE(FILTERS)
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