SVGFilterBuilder.cpp [plain text]
#include "config.h"
#if ENABLE(SVG) && ENABLE(FILTERS)
#include "SVGFilterBuilder.h"
#include "FilterEffect.h"
#include "PlatformString.h"
#include "SourceAlpha.h"
#include "SourceGraphic.h"
#include <wtf/HashMap.h>
#include <wtf/PassRefPtr.h>
namespace WebCore {
SVGFilterBuilder::SVGFilterBuilder()
{
m_builtinEffects.add(SourceGraphic::effectName(), SourceGraphic::create());
m_builtinEffects.add(SourceAlpha::effectName(), SourceAlpha::create());
}
void SVGFilterBuilder::add(const AtomicString& id, RefPtr<FilterEffect> effect)
{
if (id.isEmpty()) {
m_lastEffect = effect.get();
return;
}
if (m_builtinEffects.contains(id))
return;
m_lastEffect = effect.get();
m_namedEffects.set(id, m_lastEffect);
}
FilterEffect* SVGFilterBuilder::getEffectById(const AtomicString& id) const
{
if (id.isEmpty()) {
if (m_lastEffect)
return m_lastEffect.get();
return m_builtinEffects.get(SourceGraphic::effectName()).get();
}
if (m_builtinEffects.contains(id))
return m_builtinEffects.get(id).get();
return m_namedEffects.get(id).get();
}
void SVGFilterBuilder::clearEffects()
{
m_lastEffect = 0;
m_namedEffects.clear();
}
}
#endif // ENABLE(SVG) && ENABLE(FILTERS)