public SystemMenuFastViewOrientation(PartPane newViewPane,
final ViewStackTrimToolBar vstt) {
this.viewPane = newViewPane;
this.minimizedStack = vstt;
currentOrientation.addChangeListener(new IChangeListener() {
public void update(boolean changed) {
if (changed) {
WorkbenchWindow workbenchWindow = (WorkbenchWindow) viewPane
.getPage().getWorkbenchWindow();