Re: treeview Tab control

["Thomas Sommer" <mawa15 gmx de>]

That's exactly what I tried before:

bool gui::key_pressed(GdkEventKey* event)
 {
  if(event->type == GDK_KEY_PRESS && event->keyval == GDK_Tab) 
     {
       Gtk::TreeModel::iterator iter = 
         m_refTreeSelection_TreeView->get_selected();

       Gtk::TreeModel::Path p;
       Gtk::TreeViewColumn* c;
       m_pTreeView->get_cursor(p,c);
       if(c==m_pTreeView_OPL->get_column(0))  
         m_pTreeView_OPL->
           set_cursor(m_refModel_TreeView->get_path(iter),
                      *(m_pTreeView->get_column(1)),true);

     }
    return true;
  }

Problem is: 
Hittin tab will set the cursors to the second column but the entry in
the editable gets lost. Restoring it to the value stored in the TreeStore.

Therefore I tried to get a hold of the cellrenderer 

Gtk::CellRenderer* r=m_pTreeView->get_column_cell_renderer (0);
Gtk::CellRendererText* t=dynamic_cast<Gtk::CellRendererText*>(r);

and tried to emit the changed signal. Sadly the emit() funktion does not exist ;-(
t->signal_edited().emit();

I know this is a bad idea but doing something like this would be much easier than writing my own cellrenderer (I think).
I read something about calling the signal handler instead of emitting the signal myself. But how do I call the signal handler of the celleditable?

Thanks,

Thomas



-------- Original-Nachricht --------
> Datum: Mon, 2 Nov 2009 14:35:36 +0600
> Von: "Галымжан Кожаев" <kozhayev gmail com>
> An: "José Alburquerque" <jaalburquerque cox net>
> CC: Thomas Sommer <mawa15 gmx de>, gtkmm-list gnome org
> Betreff: Re: treeview Tab control

> Hi, Thomas.
> Maybe you should try to catch GDK events ? Like this:
> 
> // in constructor
> signal_key_press_event().connect(sigc::mem_fun(*this,
> &MyTreeView::onKeyPressEvent), false);
> 
> /// .............
> bool MyTreeView::onKeyPressEvent(GdkEventKey* event) {
>   if(event->type == GDK_KEY_PRESS) {
>     if(event->keyval == GDK_Return) {
>       // set active next column
>       // ...
>       // and stop executing of other handlers
>       return true;
>     }
>   }
>   return false;
> }
> 
> If your gdk event handler returns true, all other handlers won't be
> executed. GDK_Return represents "Enter" key, you should replace it
> with GDK_Tab (but i'm not sure, look at gtkmm header files).
> 
> Galymzhan.
> 
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