Re: [gtkmm] TreeView

[Bart Verstraete <bartverstraete telenet be>]

Bart Verstraete wrote:

> Daniel J. Lauk wrote:
>
> > You get a Gtk::TreeModel::Row when you dereference a Gtk::TreeModel::iterator,
> > like in the example code at
> > http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/ch08.html#id2510508
> >
> > <code>
> > Gtk::TreeModel::iterator iter = m_refListStore->append();
> > Gtk::TreeModel::Row row = *iter;
> > </code>
> >
> > I'd suggest you read the sources of the examples in the documentation and of
> > the gtkmm-demo and keep reading the reference documentation parallel. This is
> > what helped me a lot on using all the "tree things" ;-)
> >
> > Best regards,
> >
> > DJ
> >
> >  
> >
> > > Matthias Kestenholz wrote:
> > >
> > >    
> > >
> > > > > Hi guys could somebody help me?
> > > > > In a treeview, when I populate it, I want a particular row 
> > > > > selected(during the populating i think) and also i wane have it
> > > > >   
> > > > >
> > > > >        
> > > > expanded 
> > > >
> > > >
> > > >      
> > > >
> > > > > so I can see the underlaying targets but I can't find out how to do
> > > > >   
> > > > >
> > > > >        
> > > > this.
> > > >
> > > >
> > > >
> > > >
> > > > hi
> > > >
> > > > it seems to me that if you append/insert/prepend a row to the treestore
> > > > you get an iterator as return value... using this iterator it should be
> > > > simple to get everything else you'd need.
> > > >
> > > > Something along the lines of:
> > > >
> > > > Gtk::TreeModel::iterator iter = mrefTreeStore->append();
> > > > Gtk::TreeModel::Path path = mrefTreeStore->get_path( iter );
> > > > Glib::RefPtr<Gtk::TreeSelection> refSelection =
> > > > 	mTreeView->get_selection();
> > > > refSelection->select( path );
> > > >
> > > > But perhaps you don't even need to do it half so complicated:
> > > >
> > > > http://www.gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGtk_1_1TreeSelection.html#a21
> > > >      
> >
> >  
> >
> > > > you can pass iterators, rows or paths to the TreeSelection object, no
> > > > need to do any conversions between them just to select a row!
> > > >
> > > > If you want to expand the node you need the path anyway, so you can use
> > > > the first code fragment I posted. If you want to expand a row you have
> > > > to use
> > > >
> > > > mTreeView->expand_row( path, [true|false] );
> > > >
> > > > http://www.gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGtk_1_1TreeView.html#a60
> > > >      
> >
> >  
> >
> > > > hth
> > > >
> > > > _______________________________________________
> > > > gtkmm-list mailing list
> > > > gtkmm-list gnome org
> > > > http://mail.gnome.org/mailman/listinfo/gtkmm-list
> > > >
> > > >
> > > >
> > > >      
> > > if I let the append retunr a 'iterator' I can't adjust the value of the 
> > > columns anymore, like: 'row[column] = "blabla". And I don't find how to 
> > > get the row from a iterator or vice versa.
> > > also the function you use here, 'mrefTreeStore->get_path( iter )' that 
> > > function isn't documantated od did I overlook it?
> > >
> > > thx for your help, Bart
> > >    
> >
> >  
> I tried what you guys said and it worked thx. But now there is 
> somethinng else. Is there a signal or single click I use now 
> 'm_dirTV.signal_row_activated().connect( sigc::mem_fun(*this, 
> &dirView::on_treeview_row_activated) );' for a doubleclickaction. 
> According to the docs there are only like 5 signals. I probably misst 
> it so pls help me out of this, :)
>
> grtz Bart
>
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>  
Hehe found it already via the treeselection object it has a 
signalhandler 'signal_on_changed'. but thx for the help