code: def set_layout(self):
          
          sizer = wx.BoxSizer(wx.VERTICAL)
          sizer.Add(self.canvas, 1, wx.EXPAND)
          hbox = wx.BoxSizer(wx.HORIZONTAL)
          if self.toolbar is not None:
              self.toobar = MyToolbar(self.canvas)
              self.toobar.Realize()
              hbox.Add(self.toobar, 0, wx.EXPAND | wx.RIGHT, 10)
          self.pos_st = wx.StaticText(self, label='')
          hbox.Add(self.pos_st, 0, wx.ALIGN_CENTER_VERTICAL)
          sizer.Add(hbox, 0, wx.EXPAND | wx.BOTTOM, 0)
          self.SetSizerAndFit(sizer)
docs: set panel layout