DrawEllipseGradient
CallbackAdapterPlayer::DrawEllipseGradient(const BRect& rect, BGradient& gradient, bool fill)
BoundingBoxCallbacks::DrawEllipseGradient(const BRect& _rect, BGradient& gradient, bool fill)
CanvasCallbacks::DrawEllipseGradient(const BRect& _rect, BGradient& gradient, bool fill)