void removeBoxItem(BoxItem* item);
// ConnectionItem related
- void createConnectionItem(InterfaceItem* iface1, InterfaceItem* iface2);
+ void createConnectionItem(InterfaceItem* iface1, InterfaceItem* iface2, bool visible = true);
ConnectionItem* searchConnectionItem(InterfaceItem* iface1, InterfaceItem* iface2);
void addConnectionItem(ConnectionItem* item);
void removeConnectionItem(ConnectionItem* item);