Object Hierarchy

    GObject
        GInitiallyUnowned
            GtkObject
                GtkWidget
                    GtkContainer
                        GtkBin
                            GtkComboBox
                                MateWeatherTimezoneMenu
                    GtkEntry
                        MateWeatherLocationEntry
    GEnum
        MateWeatherLocationLevel
    GBoxed
        MateWeatherTimezone
        MateWeatherLocation