//! signal connection for children. Seems to be used only here
sigc::connection child_changed_connection;
//! signal connection for children. Seems to be used only here
sigc::connection child_changed_connection;
// Nasty hack: Remember whether we called an extra ref() when
// setting the canvas, so we know whether to call an extra unref()
// when finished with the canvas.
// Nasty hack: Remember whether we called an extra ref() when
// setting the canvas, so we know whether to call an extra unref()
// when finished with the canvas.