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/*
Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005 Rob Buis <buis@kde.org>
This file is part of the KDE project
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 "SVGFEImageElement.h"
#include "Attr.h"
#include "CachedImage.h"
#include "DocLoader.h"
#include "Document.h"
#include "MappedAttribute.h"
#include "SVGLength.h"
#include "SVGNames.h"
#include "SVGPreserveAspectRatio.h"
#include "SVGResourceFilter.h"
namespace WebCore {
SVGFEImageElement::SVGFEImageElement(const QualifiedName& tagName, Document* doc)
: SVGFilterPrimitiveStandardAttributes(tagName, doc)
, SVGURIReference()
, SVGLangSpace()
, SVGExternalResourcesRequired()
, m_preserveAspectRatio(this, SVGNames::preserveAspectRatioAttr, SVGPreserveAspectRatio::create())
, m_href(this, XLinkNames::hrefAttr)
, m_externalResourcesRequired(this, SVGNames::externalResourcesRequiredAttr, false)
{
}
SVGFEImageElement::~SVGFEImageElement()
{
if (m_cachedImage)
m_cachedImage->removeClient(this);
}
void SVGFEImageElement::parseMappedAttribute(MappedAttribute* attr)
{
const String& value = attr->value();
if (attr->name() == SVGNames::preserveAspectRatioAttr) {
const UChar* c = value.characters();
const UChar* end = c + value.length();
preserveAspectRatioBaseValue()->parsePreserveAspectRatio(c, end);
} else {
if (SVGURIReference::parseMappedAttribute(attr)) {
if (!href().startsWith("#")) {
// FIXME: this code needs to special-case url fragments and later look them up using getElementById instead of loading them here
if (m_cachedImage)
m_cachedImage->removeClient(this);
m_cachedImage = ownerDocument()->docLoader()->requestImage(href());
if (m_cachedImage)
m_cachedImage->addClient(this);
}
return;
}
if (SVGLangSpace::parseMappedAttribute(attr))
return;
if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
return;
SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
}
}
void SVGFEImageElement::notifyFinished(CachedResource*)
{
}
bool SVGFEImageElement::build(SVGResourceFilter* filterResource)
{
if (!m_cachedImage)
return false;
RefPtr<FilterEffect> effect = FEImage::create(m_cachedImage.get());
filterResource->addFilterEffect(this, effect.release());
return true;
}
void SVGFEImageElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
{
SVGFilterPrimitiveStandardAttributes::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document()->completeURL(href()));
}
}
#endif // ENABLE(SVG)
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