#include "config.h"
#if ENABLE(SVG) && ENABLE(FILTERS)
#include "SVGFEImage.h"
#include "AffineTransform.h"
#include "Filter.h"
#include "GraphicsContext.h"
#include "RenderTreeAsText.h"
#include "SVGPreserveAspectRatio.h"
#include "TextStream.h"
namespace WebCore {
FEImage::FEImage(Filter* filter, RefPtr<Image> image, const SVGPreserveAspectRatio& preserveAspectRatio)
: FilterEffect(filter)
, m_image(image)
, m_preserveAspectRatio(preserveAspectRatio)
{
}
PassRefPtr<FEImage> FEImage::create(Filter* filter, RefPtr<Image> image, const SVGPreserveAspectRatio& preserveAspectRatio)
{
return adoptRef(new FEImage(filter, image, preserveAspectRatio));
}
void FEImage::determineAbsolutePaintRect()
{
ASSERT(m_image);
FloatRect srcRect(FloatPoint(), m_image->size());
FloatRect paintRect(m_absoluteSubregion);
m_preserveAspectRatio.transformRect(paintRect, srcRect);
paintRect.intersect(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEImage::apply()
{
if (!m_image.get() || hasResult())
return;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
FloatRect srcRect(FloatPoint(), m_image->size());
FloatRect destRect(m_absoluteSubregion);
m_preserveAspectRatio.transformRect(destRect, srcRect);
IntPoint paintLocation = absolutePaintRect().location();
destRect.move(-paintLocation.x(), -paintLocation.y());
resultImage->context()->drawImage(m_image.get(), ColorSpaceDeviceRGB, destRect, srcRect);
}
void FEImage::dump()
{
}
TextStream& FEImage::externalRepresentation(TextStream& ts, int indent) const
{
ASSERT(m_image);
IntSize imageSize = m_image->size();
writeIndent(ts, indent);
ts << "[feImage";
FilterEffect::externalRepresentation(ts);
ts << " image-size=\"" << imageSize.width() << "x" << imageSize.height() << "\"]\n";
return ts;
}
}
#endif // ENABLE(SVG) && ENABLE(FILTERS)