SVGResourceMasker.cpp [plain text]
#include "config.h"
#if ENABLE(SVG)
#include "SVGResourceMasker.h"
#include "CanvasPixelArray.h"
#include "Image.h"
#include "ImageBuffer.h"
#include "ImageData.h"
#include "GraphicsContext.h"
#include "RenderObject.h"
#include "SVGMaskElement.h"
#include "SVGRenderSupport.h"
#include "SVGRenderStyle.h"
#include "TextStream.h"
using namespace std;
namespace WebCore {
SVGResourceMasker::SVGResourceMasker(const SVGMaskElement* ownerElement)
: SVGResource()
, m_ownerElement(ownerElement)
, m_emptyMask(false)
{
}
SVGResourceMasker::~SVGResourceMasker()
{
}
void SVGResourceMasker::invalidate()
{
SVGResource::invalidate();
m_mask.clear();
m_emptyMask = false;
}
FloatRect SVGResourceMasker::maskerBoundingBox(const FloatRect& objectBoundingBox) const
{
return m_ownerElement->maskBoundingBox(objectBoundingBox);
}
bool SVGResourceMasker::applyMask(GraphicsContext* context, const RenderObject* object)
{
if (!m_mask && !m_emptyMask)
m_mask = m_ownerElement->drawMaskerContent(object, m_maskRect, m_emptyMask);
if (!m_mask)
return false;
context->clipToImageBuffer(m_maskRect, m_mask.get());
return true;
}
TextStream& SVGResourceMasker::externalRepresentation(TextStream& ts) const
{
ts << "[type=MASKER]";
return ts;
}
SVGResourceMasker* getMaskerById(Document* document, const AtomicString& id, const RenderObject* object)
{
SVGResource* resource = getResourceById(document, id, object);
if (resource && resource->isMasker())
return static_cast<SVGResourceMasker*>(resource);
return 0;
}
}
#endif