73         self.LeftGridSizer.AddWindow(pin_number_label, flag=wx.GROW)

    73         self.LeftGridSizer.AddWindow(pin_number_label, flag=wx.GROW)

    74         

    74         

    75         # Create spin control for defining power rail pin number

    75         # Create spin control for defining power rail pin number

    76         self.PinNumber = wx.SpinCtrl(self, min=1, max=50,

    76         self.PinNumber = wx.SpinCtrl(self, min=1, max=50,

    77               style=wx.SP_ARROW_KEYS)

    77               style=wx.SP_ARROW_KEYS)

    78         self.Bind(wx.EVT_SPINCTRL, self.OnPinNumberChanged, self.PinNumber)

    79         self.Bind(wx.EVT_SPINCTRL, self.OnPinNumberChanged, self.PinNumber)

    79         self.LeftGridSizer.AddWindow(self.PinNumber, flag=wx.GROW)

    80         self.LeftGridSizer.AddWindow(self.PinNumber, flag=wx.GROW)

    80         

    81         

    81         # Add preview panel and associated label to sizers

    82         # Add preview panel and associated label to sizers

    82         self.RightGridSizer.AddWindow(self.PreviewLabel, flag=wx.GROW)

    83         self.RightGridSizer.AddWindow(self.PreviewLabel, flag=wx.GROW)