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void RoomListTab::room_list(Moo::RoomList roomlist) {  RoomListView.freeze_child_notify();  RoomListView.room_list(roomlist);  RoomListView.thaw_child_notify();  }RoomListTreeView::RoomListTreeView(){  //Create the Tree model:  RoomListStore = Gtk::ListStore::create(m_Columns);  set_model(RoomListStore);  //Fill the TreeView's model  set_headers_clickable(TRUE);  //Add the TreeView's view columns:  append_column("Rooms", m_Columns.m_col_name);  append_column_numeric("Users", m_Columns.m_col_users, "%d" );  set_search_column(1);    //Fill the TreeView's model  Gtk::TreeModel::Row row = *(RoomListStore->append());  row[m_Columns.m_col_users] = 1;  row[m_Columns.m_col_name] = "right-click on this";  row = *(RoomListStore->append());  row[m_Columns.m_col_users] = 2;  row[m_Columns.m_col_name] = "or this";  row = *(RoomListStore->append());  row[m_Columns.m_col_users] = 3;  row[m_Columns.m_col_name] = "or this, for a popup context menu";    Gtk::TreeViewColumn* pColumn = get_column(0);  if(pColumn) {    pColumn->set_sort_column (0);    pColumn->set_sizing(Gtk::TREE_VIEW_COLUMN_FIXED);    pColumn->set_fixed_width(180);  }  pColumn = get_column(1);  if(pColumn) {    pColumn->set_sort_column (1);    pColumn->set_sizing(Gtk::TREE_VIEW_COLUMN_FIXED);        }  ///////////////////////////////////////////   RoomListStore->set_default_sort_func(-1);  ///////////////////////////////////////	// Reorderable 0-3 (4 columns)  for(guint i = 0; i < 2; i++)  {    Gtk::TreeView::Column* pColumn = get_column(i);    pColumn->set_reorderable();    pColumn->set_min_width(0);    pColumn->set_resizable(TRUE);  }    //Fill popup menu:  {    Gtk::Menu::MenuList& menulist = m_Menu_Popup.items();    menulist.push_back( Gtk::Menu_Helpers::MenuElem("_Join", sigc::mem_fun( *this, &RoomListTreeView::on_join) ) );    menulist.push_back( Gtk::Menu_Helpers::MenuElem("_Refresh", sigc::mem_fun(*this, &RoomListTreeView::on_refresh) ) );  }  m_Menu_Popup.accelerate(*this);  }RoomListTreeView::~RoomListTreeView(){}void RoomListTreeView::room_list(Moo::RoomList roomlist) {    unset_model();  RoomListStore->clear();  Moo::RoomList::iterator it = roomlist.begin();  Gtk::TreeModel::Row row;  for(; it != roomlist.end(); ++it) {      row = *(RoomListStore->append());      row[m_Columns.m_col_name] = it->first.c_str();      row[m_Columns.m_col_users] = it->second;  }    set_model(RoomListStore);}