gecko/gfx/2d/DrawTargetCairo.h

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#ifndef _MOZILLA_GFX_DRAWTARGET_CAIRO_H_
#define _MOZILLA_GFX_DRAWTARGET_CAIRO_H_

#include "2D.h"
#include "cairo.h"

namespace mozilla {
namespace gfx {

class DrawTargetCairo : public DrawTarget
{
public:
  DrawTargetCairo();
  virtual ~DrawTargetCairo();

  virtual BackendType GetType() const { return BACKEND_CAIRO; }
  virtual TemporaryRef<SourceSurface> Snapshot();
  virtual IntSize GetSize() { return IntSize(); }

  virtual void Flush();
  virtual void DrawSurface(SourceSurface *aSurface,
                           const Rect &aDest,
                           const Rect &aSource,
                           const DrawSurfaceOptions &aSurfOptions = DrawSurfaceOptions(),
                           const DrawOptions &aOptions = DrawOptions());
  virtual void DrawSurfaceWithShadow(SourceSurface *aSurface,
                                     const Point &aDest,
                                     const Color &aColor,
                                     const Point &aOffset,
                                     Float aSigma,
                                     CompositionOp aOperator)
  { }

  virtual void ClearRect(const Rect &aRect)
  { }

  virtual void CopySurface(SourceSurface *aSurface,
                           const IntRect &aSourceRect,
                           const IntPoint &aDestination)
  { }

  virtual void FillRect(const Rect &aRect,
                        const Pattern &aPattern,
                        const DrawOptions &aOptions = DrawOptions());
  virtual void StrokeRect(const Rect &aRect,
                          const Pattern &aPattern,
                          const StrokeOptions &aStrokeOptions = StrokeOptions(),
                          const DrawOptions &aOptions = DrawOptions())
  { return; }
  virtual void StrokeLine(const Point &aStart,
                          const Point &aEnd,
                          const Pattern &aPattern,
                          const StrokeOptions &aStrokeOptions = StrokeOptions(),
                          const DrawOptions &aOptions = DrawOptions())
  { return; }

  virtual void Stroke(const Path *aPath,
                      const Pattern &aPattern,
                      const StrokeOptions &aStrokeOptions = StrokeOptions(),
                      const DrawOptions &aOptions = DrawOptions())
  { return; }

  virtual void Fill(const Path *aPath,
                    const Pattern &aPattern,
                    const DrawOptions &aOptions = DrawOptions())
  { return; }

  virtual void FillGlyphs(ScaledFont *aFont,
                          const GlyphBuffer &aBuffer,
                          const Pattern &aPattern,
                          const DrawOptions &aOptions)
  { return; }

  virtual void PushClip(const Path *aPath) { }
  virtual void PopClip() { }

  virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule aFillRule = FILL_WINDING) const { return NULL; }

  virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
                                                            const IntSize &aSize,
                                                            int32_t aStride,
                                                            SurfaceFormat aFormat) const;
  virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const;
  virtual TemporaryRef<SourceSurface>
    CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const;
  virtual TemporaryRef<DrawTarget>
    CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
  { return NULL; }

  virtual TemporaryRef<GradientStops> CreateGradientStops(GradientStop *aStops, uint32_t aNumStops) const
  { return NULL; }

  virtual void *GetNativeSurface(NativeSurfaceType aType)
  { return NULL; }

  virtual void SetTransform(const Matrix& aTransform);

  bool Init(cairo_surface_t* aSurface);

private:

  cairo_t* mContext;
};

}
}

#endif // _MOZILLA_GFX_DRAWTARGET_CAIRO_H_