RenderSVGResourceMasker.h [plain text]
#pragma once
#include "ImageBuffer.h"
#include "RenderSVGResourceContainer.h"
#include "SVGMaskElement.h"
#include "SVGUnitTypes.h"
#include <wtf/HashMap.h>
namespace WebCore {
class GraphicsContext;
struct MaskerData {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
std::unique_ptr<ImageBuffer> maskImage;
};
class RenderSVGResourceMasker final : public RenderSVGResourceContainer {
WTF_MAKE_ISO_ALLOCATED(RenderSVGResourceMasker);
public:
RenderSVGResourceMasker(SVGMaskElement&, RenderStyle&&);
virtual ~RenderSVGResourceMasker();
SVGMaskElement& maskElement() const { return downcast<SVGMaskElement>(RenderSVGResourceContainer::element()); }
void removeAllClientsFromCache(bool markForInvalidation = true) override;
void removeClientFromCache(RenderElement&, bool markForInvalidation = true) override;
bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>) override;
FloatRect resourceBoundingBox(const RenderObject&) override;
SVGUnitTypes::SVGUnitType maskUnits() const { return maskElement().maskUnits(); }
SVGUnitTypes::SVGUnitType maskContentUnits() const { return maskElement().maskContentUnits(); }
RenderSVGResourceType resourceType() const override { return MaskerResourceType; }
private:
void element() const = delete;
const char* renderName() const override { return "RenderSVGResourceMasker"; }
bool drawContentIntoMaskImage(MaskerData*, ColorSpace, RenderObject*);
void calculateMaskContentRepaintRect();
FloatRect m_maskContentBoundaries;
HashMap<RenderObject*, std::unique_ptr<MaskerData>> m_masker;
};
}
SPECIALIZE_TYPE_TRAITS_RENDER_SVG_RESOURCE(RenderSVGResourceMasker, MaskerResourceType)