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SVGFEImage.cpp

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00001 /*
00002     Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005 Rob Buis <buis@kde.org>
00004                   2005 Eric Seidel <eric@webkit.org>
00005 
00006     This library is free software; you can redistribute it and/or
00007     modify it under the terms of the GNU Library General Public
00008     License as published by the Free Software Foundation; either
00009     version 2 of the License, or (at your option) any later version.
00010 
00011     This library is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014     Library General Public License for more details.
00015 
00016     You should have received a copy of the GNU Library General Public License
00017     aint with this library; see the file COPYING.LIB.  If not, write to
00018     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019     Boston, MA 02110-1301, USA.
00020 */
00021 
00022 #include "config.h"
00023 
00024 #if ENABLE(SVG) && ENABLE(SVG_FILTERS)
00025 #include "SVGFEImage.h"
00026 
00027 #include "SVGResourceFilter.h"
00028 #include "TextStream.h"
00029 
00030 namespace WebCore {
00031 
00032 SVGFEImage::SVGFEImage(SVGResourceFilter* filter)
00033     : SVGFilterEffect(filter)
00034     , m_cachedImage(0)
00035 {
00036 }
00037 
00038 SVGFEImage::~SVGFEImage()
00039 {
00040     if (m_cachedImage)
00041         m_cachedImage->removeClient(this);
00042 }
00043 
00044 CachedImage* SVGFEImage::cachedImage() const
00045 {
00046     return m_cachedImage;
00047 }
00048 
00049 void SVGFEImage::setCachedImage(CachedImage* image)
00050 {
00051     if (m_cachedImage == image)
00052         return;
00053     
00054     if (m_cachedImage)
00055         m_cachedImage->removeClient(this);
00056 
00057     m_cachedImage = image;
00058 
00059     if (m_cachedImage)
00060         m_cachedImage->addClient(this);
00061 }
00062 
00063 TextStream& SVGFEImage::externalRepresentation(TextStream& ts) const
00064 {
00065     ts << "[type=IMAGE] ";
00066     SVGFilterEffect::externalRepresentation(ts);
00067     // FIXME: should this dump also object returned by SVGFEImage::image() ?
00068     return ts;
00069 
00070 }
00071 
00072 void SVGFEImage::imageChanged(CachedImage*)
00073 {
00074     if (SVGResourceFilter* filterResource = filter())
00075         filterResource->invalidate();
00076 }
00077 
00078 } // namespace WebCore
00079 
00080 #endif // ENABLE(SVG) && ENABLE(SVG_FILTERS)

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