#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());
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;
}
}
#endif // ENABLE(SVG) && ENABLE(FILTERS)