POStack.j

@implementation RectView : CPView
{
}

-(void) drawRect
{
  [super drawRect];
  var ov = [CPBezierPath   bezierPath];
  [ov appendBezierPathWithOvalInRect:[self frame]];
  console.debug([self frame]);
  CGContextSetLineWidth(1.0);
  [[CPColor blackColor] set];
  [ov stroke];
  [ov fill];
}
@end


its used as: 

 rect_view = [[RectView alloc] initWithFrame:[__delegate frame]];
  [rect_view setNeedsDisplay:YES];
  console.debug(__delegate);
  [__delegate addSubview: rect_view];