refBuilder->get_widget_derived usage

[Markus Kolb <markus kolb+gtkmm tower-net de>]

Hi,

I'm currently stuck and need your help...

I'd like to "load" a child Box from a glade-file to a derived class.
But on usage of the ContainerServer* returned by static ContainerServer* 
create(),
I get a segv:

p_notebook_game->append_page(*p_container_server, _("Server"));

#0  0x00007ffff79f10b3 in Gtk::Notebook::append_page(Gtk::Widget&, 
Gtk::Widget&) () at /usr/lib64/libgtkmm-3.0.so.1
#1  0x000000000041a2a5 in on_dialog_new_response(int) (response_id=-5)
    at battleship.cpp:450
#2  0x00007ffff79bbbc7 in  () at /usr/lib64/libgtkmm-3.0.so.1
#3  0x00007ffff4676e78 in g_closure_invoke () at 
/usr/lib64/libgobject-2.0.so.0
#4  0x00007ffff4688311 in  () at /usr/lib64/libgobject-2.0.so.0
#5  0x00007ffff468fd48 in g_signal_emit_valist ()
    at /usr/lib64/libgobject-2.0.so.0
#6  0x00007ffff4690002 in g_signal_emit () at 
/usr/lib64/libgobject-2.0.so.0
#7  0x00007ffff4676e78 in g_closure_invoke () at 
/usr/lib64/libgobject-2.0.so.0
#8  0x00007ffff468807d in  () at /usr/lib64/libgobject-2.0.so.0


Needs the refBuilder be available and isn't it possible to hide it?
So does the *p_cs get deleted when refBuilder gets deleted?
Or why this doesn't work?
How to do it? The examples only "load" main-dialogs.


class ContainerServer : public Gtk::Box
{
public:
  ContainerServer(BaseObjectType* cobject, const 
Glib::RefPtr<Gtk::Builder>& refBuilder);
  static ContainerServer* create();
private:
  Gtk::TreeView* m_p_treeview;
} ;

ContainerServer::ContainerServer(BaseObjectType* cobject, const 
Glib::RefPtr<Gtk::Builder>& refBuilder) : Gtk::Box(cobject)
{
  refBuilder->get_widget("treeview_server", m_p_treeview);
  m_p_treeview->get_model();
  // TODO: liststore stuff
}

ContainerServer* ContainerServer::create()
{
  // Load the GtkBuilder file and instantiate its widgets
  Glib::RefPtr<Gtk::Builder> refBuilder = Gtk::Builder::create();
  try
  {
    
refBuilder->add_from_file(Glib::build_filename(Configuration::get().get_datadir(), 
"bs_server.glade"));
  } catch (const Glib::FileError& ex)
  {
    g_critical("FileError: %s", ex.what().c_str());
    return 0;
  } catch (const Glib::MarkupError& ex)
  {
    g_critical("MarkupError: %s", ex.what().c_str());
    return 0;
  } catch (const Gtk::BuilderError& ex)
  {
    g_critical("BuilderError: %s", ex.what().c_str());
    return 0;
  }

  ContainerServer* p_cs = 0;
  refBuilder->get_widget_derived<ContainerServer>("box_server", p_cs);
  return p_cs;
}