Migrating to gtkmm 2.4, cellrenderer problems

[Leandro Fanzone <leandro hasar com>]

I am migrating code from gtkmm 2.0 to gtkmm 2.4, and I have some custom 
cellrenderer code that I copied from someone of this list without 
understanding quite completely the inner working of it. It's a 
cellrenderer to show a fixed point number in a TreeView. I managed to 
understand that generate_cellrenderer was moved from 
TreeViewColumn_CellRendererGeneration to CellRenderer_Generation, but 
the last line from this following code still puzzles me:

unsigned  n = TreeView.append_column("Precio", RendererPrecio); // 
RendererPrecio => custom cellrenderer for fixed point numbers, based on 
CellRendererText
Gtk::TreeViewColumn *pColumn = TreeView.get_column(n-1);
pColumn->add_attribute(RendererPrecio.property_amount(), cols.Precio);
RendererPrecio.property_editable() = true;
RendererPrecio.signal_edited().connect(SigC::bind(SigC::slot(TreeView,
     
&Gtk::TreeView::_auto_store_on_cellrenderer_text_edited_numerical<Util::Amount>),
     cols.Precio.index()) );

I understood that _auto_store_on_cellrenderer_text_edited_numerical now 
was moved to TreeView_Private; I could change the SigC::slot thing to 
mem_fun:

RendererPrecio.signal_edited().connect(sigc::bind(sigc::mem_fun(TreeView,
     
&Gtk::TreeView_Private::_auto_store_on_cellrenderer_text_edited_numerical<Util::Amount>),
     cols.Precio.index()) );

But I still got an error with gcc 3.3.1 on cygwin:

error: no matching function for call to 'mem_fun(Gtk::TreeView&, 
<unknown type>)'.

I don't quite understand if this is a problem of SigC migration or if 
something changed about custom cellrenderers. Any help or hint will be 
really appreciated, thanks a lot.

Leandro Fanzone.