+ b.signal_reserved.connect(sigc::bind<0>(signal_block_reserved, sigc::ref(b)));
+ if(b.get_sensor_id())
+ {
+ b.signal_state_changed.connect(sigc::bind<0>(sigc::mem_fun(this, &Layout::block_state_changed), sigc::ref(b)));
+ b.signal_state_changed.connect(sigc::bind<0>(signal_block_state_changed, sigc::ref(b)));
+ }