RenderSVGResourceGradient.h [plain text]
#pragma once
#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 {
WTF_MAKE_ISO_ALLOCATED(RenderSVGResourceGradient);
public:
SVGGradientElement& gradientElement() const { return static_cast<SVGGradientElement&>(RenderSVGResourceContainer::element()); }
void removeAllClientsFromCache(bool markForInvalidation = true) final;
void removeClientFromCache(RenderElement&, bool markForInvalidation = true) final;
bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>) final;
void postApplyResource(RenderElement&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>, const Path*, const RenderSVGShape*) final;
FloatRect resourceBoundingBox(const RenderObject&) final { return FloatRect(); }
protected:
RenderSVGResourceGradient(SVGGradientElement&, RenderStyle&&);
void element() const = delete;
void addStops(GradientData*, const Vector<Gradient::ColorStop>&, const RenderStyle&) const;
virtual SVGUnitTypes::SVGUnitType gradientUnits() const = 0;
virtual void calculateGradientTransform(AffineTransform&) = 0;
virtual bool collectGradientAttributes() = 0;
virtual void buildGradient(GradientData*, const RenderStyle&) const = 0;
GradientSpreadMethod platformSpreadMethodFromSVGType(SVGSpreadMethodType) const;
private:
HashMap<RenderObject*, std::unique_ptr<GradientData>> m_gradientMap;
#if USE(CG)
GraphicsContext* m_savedContext { nullptr };
std::unique_ptr<ImageBuffer> m_imageBuffer;
#endif
bool m_shouldCollectGradientAttributes { true };
};
}