Bug 97810 [preferences] Code template preference page buttons are not grayed out if invoked as project specific property page
3.1 RC1 Steps to reproduce: - Invoke Override Method on a project with no project-specific settings - Follow link to code template preference page -> Edit, Import, ... buttons are disabled, but not grayed out -> Toggling 'Enable project specific settings twice correctly grays out the buttons
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/ListDialogField.java
* be <code>null</code>.
	 * @param buttonLabels The labels of all buttons: <code>null</code> is a valid array entry and
	 * marks a separator.
	 * @param lprovider The label provider to render the table entries
	 */	
	public ListDialogField(IListAdapter adapter, String[] buttonLabels, ILabelProvider lprovider) {
		super();
		fListAdapter= adapter;
		fLabelProvider= lprovider;
		fListViewerAdapter= new ListViewerAdapter();
		fParentElement= this;
		fElements= new ArrayList(10);
					
		fButtonLabels= buttonLabels;
		if (fButtonLabels != null) {
			int nButtons= fButtonLabels.length;
			fButtonsEnabled= new boolean[nButtons];
			for (int i= 0; i < nButtons; i++) {
				fButtonsEnabled[i]= true;
			}
		}	
				
		fTable= null;
		fTableControl= null;
		fButtonsControl= null;
		fTableColumns= null;
		
		fRemoveButtonIndex= -1;
		fUpButtonIndex= -1;
		fDownButtonIndex= -1;