/* | |
Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> | |
2004, 2005 Rob Buis <buis@kde.org> | |
2005 Eric Seidel <eric@webkit.org> | |
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 "SVGFEOffset.h" | |
#include "Filter.h" | |
#include "GraphicsContext.h" | |
#include "SVGRenderTreeAsText.h" | |
namespace WebCore { | |
FEOffset::FEOffset(FilterEffect* in, const float& dx, const float& dy) | |
: FilterEffect() | |
, m_in(in) | |
, m_dx(dx) | |
, m_dy(dy) | |
{ | |
} | |
PassRefPtr<FEOffset> FEOffset::create(FilterEffect* in, const float& dx, const float& dy) | |
{ | |
return adoptRef(new FEOffset(in, dx, dy)); | |
} | |
float FEOffset::dx() const | |
{ | |
return m_dx; | |
} | |
void FEOffset::setDx(float dx) | |
{ | |
m_dx = dx; | |
} | |
float FEOffset::dy() const | |
{ | |
return m_dy; | |
} | |
void FEOffset::setDy(float dy) | |
{ | |
m_dy = dy; | |
} | |
void FEOffset::apply(Filter* filter) | |
{ | |
m_in->apply(filter); | |
if (!m_in->resultImage()) | |
return; | |
GraphicsContext* filterContext = getEffectContext(); | |
if (!filterContext) | |
return; | |
setIsAlphaImage(m_in->isAlphaImage()); | |
FloatRect sourceImageRect = filter->sourceImageRect(); | |
sourceImageRect.scale(filter->filterResolution().width(), filter->filterResolution().height()); | |
if (filter->effectBoundingBoxMode()) { | |
m_dx *= sourceImageRect.width(); | |
m_dy *= sourceImageRect.height(); | |
} | |
m_dx *= filter->filterResolution().width(); | |
m_dy *= filter->filterResolution().height(); | |
FloatRect dstRect = FloatRect(m_dx + m_in->scaledSubRegion().x() - scaledSubRegion().x(), | |
m_dy + m_in->scaledSubRegion().y() - scaledSubRegion().y(), | |
m_in->scaledSubRegion().width(), | |
m_in->scaledSubRegion().height()); | |
filterContext->drawImage(m_in->resultImage()->image(), DeviceColorSpace, dstRect); | |
} | |
void FEOffset::dump() | |
{ | |
} | |
TextStream& FEOffset::externalRepresentation(TextStream& ts) const | |
{ | |
ts << "[type=OFFSET] "; | |
FilterEffect::externalRepresentation(ts); | |
ts << " [dx=" << dx() << " dy=" << dy() << "]"; | |
return ts; | |
} | |
} // namespace WebCore | |
#endif // ENABLE(SVG) && ENABLE(FILTERS) |