Re: [gtkmm] binding arguments to slots

[Martin Schulze <martin-ml hippogriff de>]

Am 2003.11.17 15:23 schrieb(en) gtkmm mailing list account:
> Replying to myself
> Le Vendredi 14 Novembre 2003 18:19, gtkmm mailing list account a écrit
>
> :
> > (I felt this list was more appropriate than libsigc-list gnome org
> > because I think the latter is for a newer version of libsigC++ than
> > the one I'm using with Gtkmm, please forgive & correct me if I'm
> > wrong)
> >
> > I want to bind another argument to the signal between a
> > CellRendererText and the TreeView ((to handle adapting the edited
> > value to the model).
> >
> > I don't understand the error message I get :
> >
> >
> > GrilleEval.cxx:68: error: no matching function for call to `bind(
> >    SigC::Slot5<void, const Glib::ustring&, const Glib::ustring&,
> >    Gtk::TreeModelColumn<Glib::ustring>*, Gtk::TreeView*,
> >    <unnamed>::TestAdapt&>, Gtk::TreeModelColumn<Glib::ustring>*&,
> >    Gtk::TreeView*, <unnamed>::TestAdapt&)'
> >
> > TestAdapt is my adaptor class.
> > The signatures look OK to me.
>
> It look like there is a stringent limitation on the number of arguents
>
> :-(

The limitation will be lifted in libsigc++-2.0.

> I could do what I wanted by bundeling some args into a tuple.
>
> Is this limitation proeminently documented ?

Have to look up.

> Is there a way to expand it (recompiling libsigc++1.2 ) ?

Yes. You have to edit sigc++/macros/bind.h.m4. The last "paragraph"
of the file is of interest. Add ADAPTOR_BIND_DATA(ARGS(C,3)), etc.;
maybe also some ADAPTOR_BIND_SLOT(...) commands are needed.

Cheers!

  Martin