function __construct($parent = null)
{
parent::__construct();
if ($parent) {
$this->set_screen($parent->get_screen());
} else {
$this->connect_simple('destroy', array('gtk', 'main_quit'));
}
$this->set_title(__CLASS__);
$this->set_position(Gtk::WIN_POS_CENTER);
$this->set_default_size(-1, 500);
$this->set_border_width(8);
$hbox = new GtkHBox(false, 8);
$this->add($hbox);
$scrolled = new GtkScrolledWindow();
$scrolled->set_shadow_type(Gtk::SHADOW_ETCHED_IN);
$scrolled->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
$hbox->pack_start($scrolled, false, false, 0);
$model = $this->create_model();
$treeview = new GtkTreeView($model);
$scrolled->add($treeview);
$column = new GtkTreeViewColumn();
$column->set_title('Icon and Constant');
$cell_renderer = new GtkCellRendererPixbuf();
$column->pack_start($cell_renderer, false);
$column->set_attributes($cell_renderer, 'stock-id', 1);
$cell_renderer = new GtkCellRendererText();
$column->pack_start($cell_renderer, true);
$column->set_cell_data_func($cell_renderer, 'constant_setter');
$treeview->append_column($column);
$cell_renderer = new GtkCellRendererText();
$treeview->insert_column_with_data_func(-1, 'Label', $cell_renderer, 'label_setter');
$cell_renderer = new GtkCellRendererText();
$treeview->insert_column_with_data_func(-1, 'Accelerator', $cell_renderer, 'accel_setter');
$cell_renderer = new GtkCellRendererText();
$treeview->insert_column_with_data_func(-1, 'ID', $cell_renderer, 'id_setter');
$align = new GtkAlignment(0.5, 0, 0, 0);
$hbox->pack_end($align, true, true, 0);
$frame = new GtkFrame('Selection Info');
$align->add($frame);
$vbox = new GtkVBox(false, 8);
$vbox->set_border_width(4);
$frame->add($vbox);
$display = new StockItemDisplay();
$treeview->set_data('stock-display', $display);
$display->type_label = new GtkLabel();
$display->constant_label = new GtkLabel();
$display->id_label = new GtkLabel();
$display->accel_label = new GtkLabel();
$display->icon_image = new GtkImage();
$vbox->pack_start($display->type_label, false, false, 0);
$vbox->pack_start($display->icon_image, false, false, 0);
$vbox->pack_start($display->accel_label, false, false, 0);
$vbox->pack_start($display->constant_label, false, false, 0);
$vbox->pack_start($display->id_label, false, false, 0);
$selection = $treeview->get_selection();
$selection->set_mode(Gtk::SELECTION_SINGLE);
$selection->connect('changed', array($this, 'on_selection_changed'));
$this->show_all();
}