code: public void paint(Paintable paintable, Object group, MapContext context) {
  		Rectangle rectangle = (Rectangle) paintable;
  		context.getVectorContext().drawRectangle(group, rectangle.getId(), rectangle.getBounds(),
  				(ShapeStyle) rectangle.getStyle());
  	}
docs: The actual painting function. Draws the circles with the object's id.
  
  @param paintable
  A {@link Rectangle} object.
  @param context
  A MapContext object, responsible for actual drawing.