Bug 114615 [Markers] No feedback for 'Completed' tasks
There's not longer any 'check box' indicator on the Tasks View so clients can't determine whether a task has been completed or not... This is a regression...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/TaskView.java
}
						concreteMarker.refresh();
					} catch (CoreException e) {
						ErrorDialog.openError(getSite().getShell(),
								MarkerMessages.errorModifyingTask, null, e
										.getStatus());
					}
				}
			}
		}
	};
	private CellEditorActionHandler cellEditorActionHandler;
	private ActionAddGlobalTask addGlobalTaskAction;
	private ActionDeleteCompleted deleteCompletedAction;
	private ActionMarkCompleted markCompletedAction;
	public void createPartControl(Composite parent) {
		super.createPartControl(parent);
		TreeViewer treeViewer = getViewer();
		CellEditor cellEditors[] = new CellEditor[treeViewer.getTree()
				.getColumnCount()];
		cellEditors[0] = new CheckboxCellEditor(treeViewer.getTree());
		String[] priorities = new String[] { MarkerMessages.priority_high,
				MarkerMessages.priority_normal, MarkerMessages.priority_low };
		cellEditors[1] = new ComboBoxCellEditor(treeViewer.getTree(),
				priorities, SWT.READ_ONLY);
		CellEditor descriptionCellEditor = new TextCellEditor(treeViewer
				.getTree());
		cellEditors[2] = descriptionCellEditor;
		treeViewer.setCellEditors(cellEditors);
		treeViewer.setCellModifier(cellModifier);