| /* |
| * 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> |
| * Copyright (C) 2010 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 |
| * 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 "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"; |
| // FIXME: should this dump also object returned by SVGFEImage::image() ? |
| return ts; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SVG) && ENABLE(FILTERS) |