Bug 4373 Packages View - double clich doesn't expand two hiearchy levels
- enable: Show CU children in packages view - double click on CU observe: only one level gets expanded - now expand a node by clicking on the + observe: two levels get expanded
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
}
		return (IResource)element;
	}
	
	public void saveState(IMemento memento) {
		if (fViewer == null) {
			
			if (fMemento != null) 
				memento.putMemento(fMemento);
			return;
		}
		saveExpansionState(memento);
		saveSelectionState(memento);
		saveScrollState(memento, fViewer.getTree());
		savePatternFilterState(memento);
		saveFilterState(memento);
	}
	protected void saveFilterState(IMemento memento) {
		boolean showLibraries= getLibraryFilter().getShowLibraries();
		String show= "true"; 
		if (!showLibraries)
			show= "false"; 
		memento.putString(TAG_SHOWLIBRARIES, show);
		
		
		boolean showBinaries= getBinaryFilter().getShowBinaries();
		String showBinString= "true"; 
		if (!showBinaries)
			showBinString= "false"; 
		memento.putString(TAG_SHOWBINARIES, showBinString);