* @see org.eclipse.ui.IWorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
*/
public void createPartControl(Composite parent) {
fSash= new SashForm(parent, SWT.VERTICAL | SWT.SMOOTH);
fViewer = new TreeViewer(fSash, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
fDrillDownAdapter = new DrillDownAdapter(fViewer);
fViewer.setContentProvider(new ASTViewContentProvider());
fASTLabelProvider= new ASTViewLabelProvider();
fViewer.setLabelProvider(fASTLabelProvider);
fViewer.addSelectionChangedListener(fSuperListener);
fViewer.addDoubleClickListener(fSuperListener);