viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
// drillDownAdapter = new DrillDownAdapter(viewer);
viewer.setContentProvider(content);
viewer.setLabelProvider(new ViewLabelProvider());
viewer.setSorter(new NameSorter());
viewer.setInput(new Root(this));
// Hook viewer up to the Eclipse selection provider:
getSite().setSelectionProvider(viewer);
// Create the help context id for the viewer's control