function __create_box()
{
$vbox = new GtkVBox(false, 5);
$vbox->set_border_width(5);
$this->size_group = new GtkSizeGroup(gtk::SIZE_GROUP_HORIZONTAL);
$frame = new GtkFrame('Color options');
$vbox->pack_start($frame, true, true, 0);
$table = new GtkTable(2, 2, false);
$table->set_border_width(5);
$table->set_row_spacings(5);
$table->set_col_spacings(10);
$frame->add($table);
$color_options = array('Red', 'Green', 'Blue');
$this->add_row($table, 0, '_Foreground', $color_options);
$this->add_row($table, 1, '_Background', $color_options);
$frame = new GtkFrame('Line options');
$vbox->pack_start($frame, true, true, 0);
$table = new GtkTable(2, 2, false);
$table->set_border_width(5);
$table->set_row_spacings(5);
$table->set_col_spacings(10);
$frame->add($table);
$dash_options = array('Solid', 'Dashed', 'Dotted');
$end_options = array('Square', 'Round', 'Arrow');
$this->add_row($table, 0, '_Dashing', $dash_options);
$this->add_row($table, 1, '_Line ends', $end_options);
$check_button = new GtkCheckButton('_Enable grouping');
$check_button->set_use_underline(true);
$vbox->pack_start($check_button, false, false, 0);
$check_button->set_active(true);
$check_button->connect('toggled', array($this, 'on_toggle_grouping'));
return $vbox;
}
