Re: How to unselect a row in the TreeView, when it is selected secondtime?

["Paul Davis" <pjdavis engineering uiowa edu>]

Update:

This sure isn't working.  I'll get back when I get it figured out a bit better.

Paul

On 4/24/07, Paul Davis <pjdavis engineering uiowa edu> wrote:
> SaiKamesh,
>
> You're gonna have to track the selection manually.  This will require
> you to connect to the signal_button_press.
>
> The basic outline will basically be something like:
>
> //Some necessary values.
> Gtk::TreeView* tree_view = ... ;
> Glib::RefPtr< Gtk::TreeSelection > selection = .... ;
>
> //Notice the connect_notify() as opposed to connect()
> tree_view->signal_button_press_event().connect_notify( ... )
>
> void
> on_button_press( GdkEventButton* ev )
> {
>       Gtk::TreeModel::Path p ;
>       Gtk::TreeViewColumn* tvc ;
>       int cx ;
>       int cy ;
>
>       if( ! tree_view->get_path_at_pos( ( int ) ev->x, ( int ) ev->y,
> p, tvc, cx, cy )
>      {
>          return ;
>      }
>
>       if( tree_selection->is_selected( p ) )
>      {
>          tree_selection->unselect( p ) ;
>       }
>       else
>       {
>           tree_selection->select( p ) ;
>       }
> }
>
> Should be pretty much it unless I'm forgetting something.
>
> Paul
>
> On 4/24/07, SaiKamesh Rathinasabapathy <rsaikamesh gmail com> wrote:
> > Hi,
> >
> > I have added a tree_view( Gtk::TreeView ) in a window.
> >
> > What I have to do is, if a row is selected at the first time, then it will
> > be highlighted. -> Actually we don't need to do anything for this. It will
> > automatically be highlighted.
> >
> > If the same row is clicked (or selected) at the second time, the row should
> > be unselected.
> >
> > if the same row is clicked (or selected) at the third time, then it sholud
> > again be highlighted.
> >
> > I tried to do the above several times. But I could not do it.  Please help
> > me out to do this!
> >
> > Thanks in advance!
> >
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> >