SVGFEImageElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG) && ENABLE(SVG_FILTERS)
#include "SVGFEImageElement.h"
#include "Attr.h"
#include "CachedImage.h"
#include "DocLoader.h"
#include "Document.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_cachedImage(0)
, m_filterEffect(0)
{
}
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("#")) {
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* finishedObj)
{
if (finishedObj == m_cachedImage && m_filterEffect)
m_filterEffect->setCachedImage(m_cachedImage.get());
}
SVGFilterEffect* SVGFEImageElement::filterEffect(SVGResourceFilter* filter) const
{
ASSERT_NOT_REACHED();
return 0;
}
bool SVGFEImageElement::build(FilterBuilder* builder)
{
if(!m_cachedImage)
return false;
builder->add(result(), FEImage::create(m_cachedImage.get()));
return true;
}
void SVGFEImageElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
{
SVGFilterPrimitiveStandardAttributes::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document()->completeURL(href()));
}
}
#endif // ENABLE(SVG)