void addTextField(JPanel panel, String key, String label) {
   JLabel lab = new JLabel(label);
   lab.setAlignmentX(LEFT_ALIGNMENT);
   panel.add(lab);
   JTextField field = new JTextField();
   field.setText(sketch.configFile.get(key));
   field.setMaximumSize(new Dimension(Integer.MAX_VALUE, field.getPreferredSize().height));
   fields.put(key, field);
   panel.add(field);
 }
  public LoginPanel(Image img, ActionListener listener) {
    super(null);
    this.listener = listener;
    if (img == null) {
      InputStream inData = getClass().getResourceAsStream("/resources/background.gif");
      BufferedImage back = null;
      if (inData != null)
        try {
          back = ImageIO.read(inData);
        } catch (IOException e) {
          loger.finest("LoginPanel class can't get the background image");
        }
      this.background = back;
    }

    setLayout(null);
    JPanel logingPanel = new JPanel();
    loginTitle = new JLabel("Autentificare");
    logingPanel.setSize(250, 150);
    logingPanel.setBorder(new javax.swing.border.LineBorder(Color.black, 2));
    logingPanel.setLayout(null);
    loginTitle.setBounds(3, 0, logingPanel.getWidth(), 20);
    logingPanel.add(loginTitle);
    JLabel loginUser = new JLabel("Utilizator");
    loginUser.setBounds(
        80 - loginUser.getPreferredSize().width,
        40,
        loginUser.getPreferredSize().width,
        loginUser.getPreferredSize().height);
    logingPanel.add(loginUser);
    user = new JTextField(10);
    user.setBounds(85, 40, user.getPreferredSize().width, user.getPreferredSize().height);
    // user.setText("test");
    // loginUser.setLabelFor(user);
    logingPanel.add(user);
    JLabel loginPass = new JLabel("Parola");
    loginPass.setBounds(
        80 - loginPass.getPreferredSize().width,
        80,
        loginPass.getPreferredSize().width,
        loginPass.getPreferredSize().height);
    logingPanel.add(loginPass);
    // JTextField pass = new JTextField(10);
    pass = new JPasswordField(10);
    pass.setBounds(85, 80, pass.getPreferredSize().width, pass.getPreferredSize().height);
    pass.addKeyListener(this);
    // pass.setText("test");
    // loginUser.setLabelFor(user);
    logingPanel.add(pass);
    JButton loginButton = new JButton("Start");
    loginButton.setActionCommand("LOGIN");
    loginButton.setBounds(
        60, 110, loginButton.getPreferredSize().width, loginButton.getPreferredSize().height);
    // loginButton.setOpaque(false);
    loginButton.setFocusPainted(false);
    // loginButton.setContentAreaFilled(false);
    // loginButton.setBorderPainted(false);
    loginButton.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
    loginButton.addActionListener(listener);
    logingPanel.add(loginButton);

    add(logingPanel);
  }