def build_vdatum_input(self):
datum_frame = tk.Frame(self.controller_panel)
datum_frame.columnconfigure(0, weight=1)
datum_frame.grid(row=3, sticky=tk.EW)
tk.Label(datum_frame, text="VDatum Region",
font='Helvetica 10 bold').grid(row=0,
columnspan=1,
pady=(10, 0),
sticky=tk.EW)
datum = Datum()
regions, mcu_values, default_msg = datum.get_vdatum_region_mcus()
self.vdatum_regions = dict({(key, value)
for (key,
value) in zip(regions, mcu_values)})
self.vdatum_regions.update({default_msg: 0})
self.vdatum_region = tk.StringVar(self)
self.vdatum_region.set(default_msg)
self.vdatum_region_option_menu = tk.OptionMenu(
datum_frame,
self.vdatum_region,
*sorted(self.vdatum_regions.keys()),
command=self.update_vdatum_mcu_value)
self.vdatum_region_option_menu.config(width=self.control_panel_width,
anchor='w')
self.vdatum_region_option_menu.grid(sticky=tk.EW)
