@Override // from BComponent public void invalidate() { // if we're not attached, don't worry about it BWindow window; BRootNode root; if (!_valid || (window = getWindow()) == null || (root = window.getRootNode()) == null) { return; } _valid = false; root.rootInvalidated(this); }
protected void createWindows() { BWindow window = new BDecoratedWindow(BuiSystem.getStyle(), null); // BMenuBar bar = window.getMenuBar(); BMenu fileMenu = new BMenu("File", window); BMenuItem newItem = new BMenuItem("New Item", "NEW"); newItem.addListener(listener); fileMenu.addMenuItem(newItem); BMenuItem exitItem = new BMenuItem("Exit", "EXIT"); exitItem.addListener(listener); fileMenu.addMenuItem(exitItem); // bar.add(fileMenu); window.setSize(400, 400); BuiSystem.addWindow(window); window.center(); }