SVGPaintServerGradient.h [plain text]
#ifndef SVGPaintServerGradient_h
#define SVGPaintServerGradient_h
#if ENABLE(SVG)
#include "AffineTransform.h"
#include "Color.h"
#include "SVGPaintServer.h"
#if PLATFORM(QT)
class QGradient;
#endif
namespace WebCore {
class ImageBuffer;
class SVGGradientElement;
enum SVGGradientSpreadMethod {
SPREADMETHOD_PAD = 1,
SPREADMETHOD_REFLECT = 2,
SPREADMETHOD_REPEAT = 3
};
#if PLATFORM(CG)
typedef std::pair<CGFloat, Color> SVGGradientStop;
#else
typedef std::pair<float, Color> SVGGradientStop;
#endif
class SVGPaintServerGradient : public SVGPaintServer {
public:
SVGPaintServerGradient(const SVGGradientElement*);
virtual ~SVGPaintServerGradient();
const Vector<SVGGradientStop>& gradientStops() const;
void setGradientStops(const Vector<SVGGradientStop>&);
SVGGradientSpreadMethod spreadMethod() const;
void setGradientSpreadMethod(const SVGGradientSpreadMethod&);
bool boundingBoxMode() const;
void setBoundingBoxMode(bool mode = true);
AffineTransform gradientTransform() const;
void setGradientTransform(const AffineTransform&);
virtual TextStream& externalRepresentation(TextStream&) const;
virtual bool setup(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText) const;
#if PLATFORM(CG)
virtual void teardown(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText) const;
virtual void renderPath(GraphicsContext*&, const RenderPath*, SVGPaintTargetType) const;
virtual void invalidate();
void updateQuartzGradientStopsCache(const Vector<SVGGradientStop>&);
void updateQuartzGradientCache(const SVGPaintServerGradient*);
void handleBoundingBoxModeAndGradientTransformation(GraphicsContext*, const FloatRect& targetRect) const;
#endif
#if PLATFORM(QT)
protected:
void fillColorArray(QGradient&, const Vector<SVGGradientStop>&, float opacity) const;
virtual QGradient setupGradient(GraphicsContext*&, const RenderObject*) const = 0;
#endif
private:
Vector<SVGGradientStop> m_stops;
SVGGradientSpreadMethod m_spreadMethod;
bool m_boundingBoxMode;
AffineTransform m_gradientTransform;
const SVGGradientElement* m_ownerElement;
#if PLATFORM(CG)
public:
typedef struct {
CGFloat colorArray[4];
CGFloat offset;
CGFloat previousDeltaInverse;
} QuartzGradientStop;
QuartzGradientStop* m_stopsCache;
int m_stopsCount;
CGShadingRef m_shadingCache;
mutable GraphicsContext* m_savedContext;
mutable ImageBuffer* m_imageBuffer;
#endif
};
inline SVGGradientStop makeGradientStop(float offset, const Color& color)
{
return std::make_pair(offset, color);
}
}
#endif
#endif // SVGPaintServerGradient_h