/* | |
Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> | |
2009 Dirk Schulze <krit@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 | |
aint 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 "SVGFETile.h" | |
#include "AffineTransform.h" | |
#include "Filter.h" | |
#include "GraphicsContext.h" | |
#include "Pattern.h" | |
#include "SVGRenderTreeAsText.h" | |
namespace WebCore { | |
FETile::FETile(FilterEffect* in) | |
: FilterEffect() | |
, m_in(in) | |
{ | |
} | |
PassRefPtr<FETile> FETile::create(FilterEffect* in) | |
{ | |
return adoptRef(new FETile(in)); | |
} | |
FloatRect FETile::uniteChildEffectSubregions(Filter* filter) | |
{ | |
m_in->calculateEffectRect(filter); | |
return filter->filterRegion(); | |
} | |
void FETile::apply(Filter* filter) | |
{ | |
m_in->apply(filter); | |
if (!m_in->resultImage()) | |
return; | |
GraphicsContext* filterContext = getEffectContext(); | |
if (!filterContext) | |
return; | |
setIsAlphaImage(m_in->isAlphaImage()); | |
IntRect tileRect = enclosingIntRect(m_in->scaledSubRegion()); | |
// Source input needs more attention. It has the size of the filterRegion but gives the | |
// size of the cutted sourceImage back. This is part of the specification and optimization. | |
if (m_in->isSourceInput()) { | |
FloatRect filterRegion = filter->filterRegion(); | |
filterRegion.scale(filter->filterResolution().width(), filter->filterResolution().height()); | |
tileRect = enclosingIntRect(filterRegion); | |
} | |
OwnPtr<ImageBuffer> tileImage = ImageBuffer::create(tileRect.size()); | |
GraphicsContext* tileImageContext = tileImage->context(); | |
tileImageContext->drawImage(m_in->resultImage()->image(), DeviceColorSpace, IntPoint()); | |
RefPtr<Pattern> pattern = Pattern::create(tileImage->image(), true, true); | |
AffineTransform matrix; | |
matrix.translate(m_in->scaledSubRegion().x() - scaledSubRegion().x(), m_in->scaledSubRegion().y() - scaledSubRegion().y()); | |
pattern.get()->setPatternSpaceTransform(matrix); | |
filterContext->setFillPattern(pattern); | |
filterContext->fillRect(FloatRect(FloatPoint(), scaledSubRegion().size())); | |
} | |
void FETile::dump() | |
{ | |
} | |
TextStream& FETile::externalRepresentation(TextStream& ts) const | |
{ | |
ts << "[type=TILE]"; | |
FilterEffect::externalRepresentation(ts); | |
return ts; | |
} | |
} // namespace WebCore | |
#endif // ENABLE(SVG) && ENABLE(FILTERS) | |