lensBar = new LensBar(registry, manager);
lensBar = new LensBar(registry, manager, w, h);
    public ToolBar(Registry registry, ImageInspectorManager manager,                     double magFactor)    {        setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));        putClientProperty("JToolBar.isRollover", new Boolean(true));        zoomBar = new ZoomBar(registry, manager, magFactor);        lensBar = new LensBar(registry, manager);        add(zoomBar);        add(Box.createRigidArea(HBOX));        add(new JSeparator(JSeparator.HORIZONTAL));        add(lensBar);        add(new JSeparator(JSeparator.HORIZONTAL));        add(Box.createRigidArea(HBOX));            }