# File gtk/sample/misc/mouse-gesture.rb, line 355
  def gesture(widget, button, x, y, base_x, base_y)
    remove(@gesture)
    put(@gesture, 0, 0)
    _, _, w, h = allocation.to_a
    @gesture.set_size_request(w, h)
    @gesture.show
    @gesture.start(widget, button, x, y, base_x, base_y)
  end