Bug 125874 [create script] 'Select All' doesn't work
20060131 - Create script - Press 'Select All', nothing happens
org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/history/RefactoringHistoryControl.java
handleSelectionChanged((IStructuredSelection) selection);
			}
		});
		fHistoryPane.setContent(fHistoryViewer.getControl());
		fCommentPane= new CompareViewerSwitchingPane(fSplitterControl, SWT.BORDER | SWT.FLAT) {
			protected final Viewer getViewer(final Viewer viewer, final Object input) {
				if (input instanceof String) {
					final String comment= (String) input;
					final TextViewer extended= new TextViewer(fCommentPane, SWT.NULL);
					extended.setDocument(new Document(comment));
					setText(fControlConfiguration.getCommentCaption());
					return extended;
				}
				return null;
			}
		};
		fCommentPane.setText(fControlConfiguration.getCommentCaption());
		fCommentPane.setEnabled(false);
		fSplitterControl.setWeights(new int[] { 80, 20 });
		Dialog.applyDialogFont(this);
	}
	/**
	 * Creates the history viewer of the dialog.
	 * 
	 * @param parent
	 *            the parent composite
	 * @return the history viewer
	 */
	protected TreeViewer createHistoryViewer(final Composite parent) {
		Assert.isNotNull(parent);