protected DockbarManager(RootWindow window) {
dockbarLayout = new DockbarLayout(this);
activationListener = new ActivationListener(this);
leftBar = new Dockbar(this, MinimizationManager.LEFT);
rightBar = new Dockbar(this, MinimizationManager.RIGHT);
bottomBar = new StatusDockbar(this, MinimizationManager.BOTTOM);
viewPane = new ViewPane(this);