Bug 39264 Override method dialog: Selection get's lost when toggling tree/flat mode
20030624 1. Open the setter/getter dialog, enable the tree mode 2. select some getters and setters 3. toggle to the flat list: Elements still selected 4. toggle to the tree mode: Tree collapsed (Should remember the old state) 5. Open the tree: No nodes checked, description still stays '2 of 5 selected'
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/dialogs/OverrideMethodDialog.java
/*
		 * @see IContentProvider#dispose()
		 */
		public void dispose() {
		}
	
		/*
		 * @see IContentProvider#inputChanged(Viewer, Object, Object)
		 */
		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
			fViewer= viewer;
		}
			
			
		public boolean isShowTypes() {
			return fShowTypes;
		}
	
		public void setShowTypes(boolean showTypes) {
			if (fShowTypes != showTypes) {
				fShowTypes= showTypes;
				fSettings.put(SETTINGS_SHOWTYPES, showTypes);
				if (fViewer != null) {
					fViewer.refresh();
				}
			}
		}											
	}
	
	private static class OverrideMethodSorter extends ViewerSorter {