Re: Gtk::TreeSelection::get_selected_rows()

[Bob Caryl <bob fis-cal com>]

Doug McLain wrote:

> The gtkmm tutorial Treeview sections gives an example of getting 
> multiple selections using the selected_foreach_iter() slot, but I want 
> to try get_selected_rows().  I don't know how to use the return value 
> though, ListHandle_Path.  Could someone explain or show me a simple 
> example?
>
> Thanks
> Doug
>
> http://gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGtk_1_1TreeSelection.html#a7 

Gtk::TreeSelection::get_selected_rows() returns a ListHandle_Path which 
has an operator that lets you convert it to a 
std::vector<Gtk::TreeModel::Path>.

Ok... here's what you should do:

// 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;
   // now do what you need to do with the data in your TreeModel
}

//code snippet ends

As always, if I'm all wet, you guys correct me.

Hope this helps.

Bob