Re: Gtk::TreeSelection::get_selected_rows()

[Bob Caryl <bob fis-cal com>]

Hey Paul,

You are undoubtedly correct about my inefficiency; however, the reason 
my example uses the std::vector<Gtk::TreeModel::Path> is because its use 
is "chapter-and-verse" from the docs:

http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/ch03s05.html

I found this reference in the following post:  
http://mail.gnome.org/archives/gtkmm-list/2004-November/msg00221.html

Bob

Paul Davis wrote:

> > // code snippet starts
> > // all this presupposes you've set up your tree view, a list or tree 
> > store, and a tree view selection somewhere previously
> > std::vector<Gtk::TreeModel::Path> pathlist;
> >
> > pathlist = myTreeViewSelection->get_selected_rows();
> >
> > // Now, you have a list of paths to the selected rows.  For each entry 
> > in the list, you can get an iterator which can be deferenced to a 
> > Gtk::TreeView::Row.
> >
> > for(gint i = 0; i < pathlist.size(); i++)
> > {
> >    Gtk::TreeModel::iterator iter = 
> > myTreeView->get_model().get_iter(pathlist[i]);
> >    Gtk::TreeModel::Row row = *iter;
> >    
>
> slightly more efficient, perhaps, to do:
>
>    for (TreeSelection::ListHandle_Path::iterator i = pathlist.begin(); 
>         i != pathlist.end(); ++i) {
>            Row row = *(model.get_iter (*i));
> 	    ...
>    }
>
>
>
>
>