How to add a sub-menu to a Gtk Menu

Question

I have a Gtk menu in my application to which I want to add a submenu. I.e, when the main menu item is clicked, it should expand another list of menu items (A submenu).

I have tried some methods and they don't work. The documentation is sparse on this too.

Here is my code:

from gi.repository import Gtk

self.menu = Gtk.Menu()
item = Gtk.MenuItem()
item.set_label("Interfaces")
item.connect("activate", self.app.main_window.cb_show, '')
self.menu.append(item)

#Tried this way but it doesn't work.
# self.sub_menu = Gtk.Menu()
# self.menu.append(self.sub_menu)

item = Gtk.MenuItem()
item.set_label("Configuration")
item.connect("activate", self.app.config_window.cb_show, '')
self.menu.append(item)

self.menu.show_all()

How can I do this?

Update:

I tried using the gtk.MenuItem.set_submenu but it still does not work.

    self.menu = Gtk.Menu()

    item = Gtk.MenuItem()
    item.set_label("Units")
    self.menu.append(item)

    self.sub_menu = Gtk.Menu()
    submenu_item = Gtk.MenuItem()
    submenu_item.set_label("item text")
    item.set_submenu(self.sub_menu)

You don't add submenu_item to self.sub_menu.

el.pescado - нет войне
– el.pescado - нет войне

2018-10-17 09:41:20 +00:00
Commented Oct 17, 2018 at 9:41 — el.pescado - нет войне
– el.pescado - нет войне, Commented Oct 17, 2018 at 9:41
@el.pescado thanks! works now :)

Sapnesh Naik
– Sapnesh Naik

2018-10-17 10:18:31 +00:00
Commented Oct 17, 2018 at 10:18 — Sapnesh Naik
– Sapnesh Naik, Commented Oct 17, 2018 at 10:18

el.pescado - нет войне · Accepted Answer · 2018-10-17 06:02:38Z

2

You need to:

Create a Gtk.Menu representing submenu
Create a Gtk.MenuItem in parent menu
Attach submenu to menu item with gtk.MenuItem.set_submenu

Something like:

item = Gtk.MenuItem("Submenu")
self.menu.append(item)
self.sub_menu = Gtk.Menu()
item.set_submenu(self.sub_menu)

answered Oct 17, 2018 at 6:02

el.pescado - нет войне

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1 Comment

Damn Vegetables Over a year ago

@SapneshNaik I am using Gtk#, but this basic idea of setting a Menu to SubMenu worked. If it does not work, why have you marked it as the answer. If it worked, you need to remove the comment above.

Eric Aya · Accepted Answer · 2019-02-04 17:20:47Z

1

A Menu can only be attached to a MenuItem and a MenuItem can only be added to a Menu or a Menubar.

The hierarchy you want is:

menubar
    menuitem (sort of a menu header; it's got the label, "File" for instance)
       menu (the actual file menu)
         menuitem (such as "New")
           menu (actually a submenu)
              item ("Text" for instance)

A Menu object can only be attached using set_submenu().

A MenuItem can only be attached using append().

edited Feb 4, 2019 at 17:20

Eric Aya

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answered Feb 4, 2019 at 16:45

no-one

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