function new_column($label, $cell_type, $index)
{
//check cell type
if ($cell_type == 'text') {
$this->celulas[$index] = new GtkCellRendererText();
} elseif ($cell_type == 'active') {
$this->celulas[$index] = new GtkCellRendererToggle();
$this->celulas[$index]->connect('toggled', array($this, 'sel_toggled'));
} elseif ($cell_type == 'pixbuf') {
$this->celulas[$index] = new GtkCellRendererPixbuf();
}
$column = new GtkTreeViewColumn($label, $this->celulas[$index], $cell_type, $index);
$column->set_reorderable(true);
$column->set_sort_column_id($index);
$column->set_resizable(true);
$column->connect('clicked', array($this, 'column_clicked'));
$this->treeview->append_column($column);
return $column;
}
