container.add(bottomBar, BorderLayout.SOUTH);
    private void buildGUI()    {        Container container = getContentPane();        layer = new JLayeredPane();        drawingCanvas = new DrawingCanvas();        canvas = new ImageCanvas(this, control);        layer.add(canvas, new Integer(Viewer.IMAGE_LEVEL));        scrollPane = new JScrollPane(layer);        container.add(toolBar, BorderLayout.NORTH);        container.add(buildMain(), BorderLayout.WEST);        container.add(scrollPane, BorderLayout.CENTER);        //Configure the display buttons in the TaskBar.        configureDisplayButtons();    }