In gtkmm 2.x I had,
Glib::RefPtr<Gio::SimpleActionGroup> m_refActionGroup;
...
m_refActionGroup->get_action("PlacepieceBlackPawn").set_sensitive(row != 0
&& row != 7);
With gtkmm 3.x it seems that I am forced to do:
static_cast<Gio::SimpleAction*>(m_refActionGroup->lookup_action("PlacepieceBlackPawn").get())->set_enabled(row
!= 0 && row != 7);
Any other attempt (that would look at lot more sane and logical) gives a compile
error in a gtkmm header - or maybe I'm missing something?
The most logical thing would be for 'Gio::SimpleActionGroup::lookup_action' to
return
a Glib::RefPtr<Gio::SimpleAction>, in which case I could do just:
m_refActionGroup->lookup_action("PlacepieceBlackPawn")->set_enabled(row !=
0 && row != 7);
The builtin cast of Glib::RefPtr isn't working, aka
Glib::RefPtr<Gio::SimpleAction> action =
m_refActionGroup->lookup_action("PlacepieceBlackPawn");
Neither is,
static_cast<Glib::RefPtr<Gio::SimpleAction>>(m_refActionGroup->lookup_action("PlacepieceBlackPawn"))->set_enabled(row
!= 0 && row != 7);
How am I supposed to get my Gio::SimpleAction back?
Carlo
PS lookup_action return a Gio::Action, which is a base class and doesn't have
the set_enabled method.
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