tree.setRootVisible(false);
tree.setShowsRootHandles(true);
//CUSTOM
tree.setToggleClickCount(0);
//END CUSTOM
renderer = new XPDLTreeCellRenderer(controller);
Color bckColor = controller.getNavigatorSettings().getBackGroundColor();
renderer.setBackgroundNonSelectionColor(bckColor);
renderer.setBackgroundSelectionColor(controller.getNavigatorSettings().getSelectionColor());
tree.setBackground(bckColor);