On 2020-10-05 17:07, Kjell Ahlstedt wrote:
Gio::SimpleActionGroup belongs to glibmm, not to gtkmm. Both gtkmm 2.x
and gtkmm 3.x use glibmm versions from the glibmm-2.4 ABI series. I
don't understand how you can do what you say you do in gtkmm 2.x.
Haven't you used Gtk::ActionGroup and Gtk::Action? Something like
Glib::RefPtr<Gtk::ActionGroup> m_refActionGroup;
...
m_refActionGroup->get_action("PlacepieceBlackPawn")->set_sensitive(row
!= 0 && row != 7);
Gtk::ActionGroup and Gtk::Action are deprecated in gtkmm 3.x and removed in
gtkmm 4.x.
How do you add the Gio::SimpleAction to the Gio::SimpleActionGroup? I suppose
you have a
Glib::RefPtr<Gio::SimpleAction> refPlacepieceBlackPawn = ......
or a
m_refActionGroup->add_action("PlacepieceBlackPawn"); that returns a
Glib::RefPtr<Gio::SimpleAction>.
Then it would be easy to save that Glib::RefPtr<Gio::SimpleAction>, so you
don't need lookup_action().
If you prefer lookup_action(), this should work in gtkmm 3.x, but not in gtkmm
4.x:
auto simple_action =
Glib::RefPtr::cast_dynamic<Gio::SimpleAction>(m_refActionGroup->lookup_action("PlacepieceBlackPawn"));
Shall be
auto simple_action = Glib::RefPtr<Gio::SimpleAction>
::cast_dynamic(m_refActionGroup->lookup_action("PlacepieceBlackPawn"));
if (simple_action)
simple_action->set_enabled(row != 0 && row != 7);
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