for i in range(mappingsList.GetColumnCount()):
            mappingsList.SetColumnWidth(i, wx.LIST_AUTOSIZE_USEHEADER)
            size = mappingsList.GetColumnWidth(i)
            mappingsList.SetColumnWidth(i, wx.LIST_AUTOSIZE)
            mappingsList.SetColumnWidth(i, max(size, mappingsList.GetColumnWidth(i) + 5))