public MainWindow() {
wListener = new WindowListener(this);
// db = new CasDB();
setName("CAS File Manager Browser");
setDefaultCloseOperation(EXIT_ON_CLOSE);
qPane = new QueryPane(wListener);
mPane = new MiddlePane();
bPane = new BottomPane();
Dimension d = new Dimension(GuiParams.WINDOW_WIDTH, GuiParams.WINDOW_HEIGHT);
Container p = this.getContentPane();
p.setPreferredSize(d);