# File gtk/sample/gtk-demo/cairo-path.rb, line 19
    def draw(cr)
      cr.move_to(0.5, 0.1)
      cr.line_to(0.9, 0.9)
      cr.rel_line_to(-0.4, 0.0)
      cr.curve_to(0.2, 0.9, 0.2, 0.5, 0.5, 0.5)

      cr.stroke
    end