| SWT.H_SCROLL | SWT.V_SCROLL);
viewerTree.setLayoutData("grow, h 100%!, w 85%!"); //$NON-NLS-1$
viewerTree.setHeaderVisible(true);
viewerTree.setLinesVisible(true);
final TableLayout viewerTreeLayout = new TableLayout();
final TreeColumn nameColumn = new TreeColumn(viewerTree, SWT.LEFT, DOCUMENT_INDEX);
nameColumn.setText(Messages.docView_documentColumn);
viewerTreeLayout.addColumnData(new ColumnWeightData(DOCUMENT_WEIGHT));
final TreeColumn detailColumn = new TreeColumn(viewerTree, SWT.CENTER, TYPE_INDEX);
detailColumn.setText(Messages.docView_typeColumn);
viewerTreeLayout.addColumnData(new ColumnWeightData(TYPE_WEIGHT));
final TreeColumn descColumn = new TreeColumn(viewerTree, SWT.LEFT, DESCRIPTION_INDEX);
descColumn.setText(Messages.docView_descriptionColumn);
viewerTreeLayout.addColumnData(new ColumnWeightData(DESCRIPTION_WEIGHT));
viewerTree.setLayout(viewerTreeLayout);
viewer = new TreeViewer(viewerTree);
viewer.setContentProvider(new DocumentViewContentProvider());