RenderSVGResourceGradient.h [plain text]
#ifndef RenderSVGResourceGradient_h
#define RenderSVGResourceGradient_h
#include "Gradient.h"
#include "ImageBuffer.h"
#include "RenderSVGResourceContainer.h"
#include "SVGGradientElement.h"
#include <memory>
#include <wtf/HashMap.h>
namespace WebCore {
struct GradientData {
WTF_MAKE_FAST_ALLOCATED;
public:
RefPtr<Gradient> gradient;
AffineTransform userspaceTransform;
};
class GraphicsContext;
class RenderSVGResourceGradient : public RenderSVGResourceContainer {
public:
SVGGradientElement& gradientElement() const { return static_cast<SVGGradientElement&>(RenderSVGResourceContainer::element()); }
virtual void removeAllClientsFromCache(bool markForInvalidation = true) override final;
virtual void removeClientFromCache(RenderElement&, bool markForInvalidation = true) override final;
virtual bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, unsigned short resourceMode) override final;
virtual void postApplyResource(RenderElement&, GraphicsContext*&, unsigned short resourceMode, const Path*, const RenderSVGShape*) override final;
virtual FloatRect resourceBoundingBox(const RenderObject&) override final { return FloatRect(); }
protected:
RenderSVGResourceGradient(SVGGradientElement&, Ref<RenderStyle>&&);
void element() const = delete;
void addStops(GradientData*, const Vector<Gradient::ColorStop>&) const;
virtual SVGUnitTypes::SVGUnitType gradientUnits() const = 0;
virtual void calculateGradientTransform(AffineTransform&) = 0;
virtual bool collectGradientAttributes() = 0;
virtual void buildGradient(GradientData*) const = 0;
GradientSpreadMethod platformSpreadMethodFromSVGType(SVGSpreadMethodType) const;
private:
bool m_shouldCollectGradientAttributes : 1;
HashMap<RenderObject*, std::unique_ptr<GradientData>> m_gradientMap;
#if USE(CG)
GraphicsContext* m_savedContext;
std::unique_ptr<ImageBuffer> m_imageBuffer;
#endif
};
}
#endif