def _show_graph_canvas(self):
self._show_graph_button.forget()
# TODO: add different layouts and other options
graph = self._group.prime_graph()
self._graph_canvas = GraphCanvas(self._right_pane, SpringLayout(graph))
self._graph_canvas.pack(expand=True, fill='both')
self._graph_canvas.vertex_label_mode = self.getvar(
name=self.winfo_name() + ".vertexlabelposition")
self._iterations_plugin = IterationsPlugin()
self._iterations_plugin.apply(self._graph_canvas)
self.update_layout()
