this.toolbar = new XBayaToolBar(this.engine);
contentPane.add(this.toolbar.getSwingComponent(),
BorderLayout.PAGE_START);
this.portViewer = new PortViewer();
this.componentViewer = new ComponentViewer();
this.componentSelector = new ComponentSelector(this.engine);
this.componentSelector
.addComponentSelectorListener(this.componentViewer);
this.monitorPane = new MonitorPanel(this.engine);