Do we have support for 2D Menu in Gtk?

j_arun_mani · February 7, 2020, 6:01pm

The above pic is from Blender (which uses its home-built graphics kit), I like that 2D menu, is it possible to create one similarly with Gtk?

ebassi · February 7, 2020, 6:02pm

You can use a GtkPopover to define a complex menu structure.

j_arun_mani · February 7, 2020, 6:04pm

Expected; wanted to know if Gtk has built-in support for 2D menu, anyway np

ebassi · February 7, 2020, 6:07pm

There is an internal widget called GtkTreeMenu but:

is private
it uses tree models and cell renderers
it’s gone away from GTK4, just like every other GtkMenu-related widget

Popovers can hold complex widgets, which means they can deal with complex layouts; menus cannot, because menu widgets were written for very specific UI guidelines.

j_arun_mani · February 7, 2020, 6:12pm

I see. Are the methods Gtk.Box.pack_start,Gtk.Box.pack_end being dropped too? After the release or just as the Gtk 4 is developing, can we get a list of changes that must be taken care while making apps for future compatibility?

ebassi · February 7, 2020, 6:14pm

Yes.

We have a whole porting guide. It’s usually kept up to date, and will definitely be the canonical source on release.

j_arun_mani · February 7, 2020, 6:19pm

Found a typo; https://gnome.pages.gitlab.gnome.org/gtk/gtk/ch29s02.html#id-1.6.4.4.17, it should be “Adapt to GtkBox API changes”

ebassi · February 7, 2020, 6:23pm

Good eye!

You can fix it and open a merge request, and I’ll be happy to review and merge it.

j_arun_mani · February 7, 2020, 6:33pm

Done! Forking took time…

system · February 21, 2020, 6:33pm

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