//GUI Launcher
    userlogin = new JUserPanel(register);  //Controller class
    GUIController gc = new GUIController(content, userlogin); //content is actually useless, guicontroller is below.
    KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventPostProcessor(gc);

    this.setGlassPane(userlogin);
    userlogin.setVisible(true);
    userlogin.setOpaque(true);
    userlogin.validate();
    userlogin.repaint();



//GUIController

package Presenter;

import java.awt.Container;
import java.awt.KeyEventPostProcessor;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Observable;
import java.util.Observer;

import View.JUserPanel;

/** Controls the GUI */
public class GUIController implements  KeyEventPostProcessor{
    private Container content;
    private JUserPanel glasspanel;

    public GUIController(Container content, JUserPanel userlogin) {
    this.content = content;
    this.glasspanel = userlogin;
    }

    @Override
    public boolean postProcessKeyEvent(KeyEvent e) {
        char mychar = 'm';
        if(e.isAltDown()){
            if(e.getKeyChar()==mychar){
                //content
                glasspanel.setOpaque(true);
                glasspanel.setNeedToRedispatch(false);
                glasspanel.setVisible(true);
                glasspanel.validate();
                glasspanel.repaint();
            }
        }
        return true;
    }
}


//GlassPane

package View;

public class JUserPanel extends JComponent implements MouseListener,
        MouseMotionListener, FocusListener {

    // trigger for redispatching (allows external control)
    boolean needToRedispatch = false;
    private JButton loginBut;
    private JLabel usernamelabel;
    private JLabel passwordlabel;
    private JLabel errorlabel;
    private JTextField username;
    private JPasswordField password;
    private Register model;



    public JUserPanel(Register register) {
        this.model = register;

        setLayout(new GridBagLayout());
        setBackground(Color.white);
        setVisible(true);
        setOpaque(true);
        needToRedispatch = false;

    GridBagConstraints c = new GridBagConstraints();
        c.fill = GridBagConstraints.HORIZONTAL;
    //  c.weightx = ;
        c.gridx = 1;
        c.gridy = 1;

        addMouseListener(this);
        addMouseMotionListener(this);
        addFocusListener(this);
        JPanel loginpanel = new JPanel();
        loginpanel.setPreferredSize(new Dimension(500,300));
        loginpanel.setBackground(Color.white);
        add(loginpanel, c);

        GridLayout grid = new GridLayout(0,2);
        grid.setHgap(20);
        grid.setVgap(30);
        loginpanel.setLayout(grid);



        loginBut = new JButton("Login");
        loginBut.setFont(new Font(loginBut.getFont().getFontName(), loginBut.getFont().getStyle(), 25));

        usernamelabel = new JLabel("UserID");
        usernamelabel.setFont(new Font(usernamelabel.getFont().getFontName(), usernamelabel.getFont().getStyle(), 25));

        passwordlabel = new JLabel("Password");
        passwordlabel.setFont(new Font(passwordlabel.getFont().getFontName(), passwordlabel.getFont().getStyle(), 25));

        errorlabel = new JLabel();
        errorlabel.setFont(new Font(errorlabel.getFont().getFontName(), errorlabel.getFont().getStyle(), 25));

        username = new JTextField();
        username.setFont(new Font(username.getFont().getFontName(), username.getFont().getStyle(), 25));

        password = new JPasswordField();
        password.setFont(new Font(password.getFont().getFontName(), password.getFont().getStyle(), 25));


        loginpanel.add(usernamelabel);
        loginpanel.add(username);
        loginpanel.add(passwordlabel);
        loginpanel.add(password);
        loginpanel.add(new JLabel(""));
        loginpanel.add(loginBut);
        c.gridy = 2;
        add(errorlabel, c);
        ButtonMouseListen bml = new ButtonMouseListen();
        loginBut.addMouseListener(bml);

    }

    public void setVisible(boolean v) {
        // Make sure we grab the focus so that key events don't go astray.
        if (v){
            requestFocus();
        }
        setNeedToRedispatch(false);
        super.setVisible(v);

    }

    // Once we have focus, keep it if we're visible
    public void focusLost(FocusEvent fe) {
        if (isVisible())
            requestFocus();
    }

    public void focusGained(FocusEvent fe) {
    }

    // We only need to redispatch if we're not visible, but having full control
    // over this might prove handy.
    public void setNeedToRedispatch(boolean need) {
        needToRedispatch = need;
    }

    /*
     * (Based on code from the Java Tutorial) We must forward at least the mouse
     * drags that started with mouse presses over the check box. Otherwise, when
     * the user presses the check box then drags off, the check box isn't
     * disarmed -- it keeps its dark gray background or whatever its L&F uses to
     * indicate that the button is currently being pressed.
     */
    public void mouseDragged(MouseEvent e) {
        if (needToRedispatch)
            redispatchMouseEvent(e);
    }

    public void mouseMoved(MouseEvent e) {
        if (needToRedispatch)
            redispatchMouseEvent(e);
    }

    public void mouseClicked(MouseEvent e) {
        if (needToRedispatch)
            redispatchMouseEvent(e);
    }

    public void mouseEntered(MouseEvent e) {
        if (needToRedispatch)
            redispatchMouseEvent(e);
    }

    public void mouseExited(MouseEvent e) {
        if (needToRedispatch)
            redispatchMouseEvent(e);
    }

    public void mousePressed(MouseEvent e) {
        if (needToRedispatch)
            redispatchMouseEvent(e);
    }

    public void mouseReleased(MouseEvent e) {
        if (needToRedispatch) {
            redispatchMouseEvent(e);

        }
    }

    private void redispatchMouseEvent(MouseEvent e) {

    }
    @Override
    protected void paintComponent(Graphics g)
    {
        g.setColor( getBackground() );
        g.fillRect(0, 0, getSize().width, getSize().height);
    }


    private class ButtonMouseListen implements MouseListener {

        public ButtonMouseListen() {
        }

        /**
         * determines what button was clicked and does something
         */
        public void mouseClicked(MouseEvent e) {
            if(username.getText().equals("") || password.getText().equals("")){
                errorlabel.setText("Please Check That You Filled in the Fields");
                return;
            }
            int uid = -1;
            try{
                uid = Integer.parseInt(username.getText());
            }
            catch(Exception e2){
                errorlabel.setText("User does not exist");
                return;
            }
            Session session = HibernateUtil.getSessionFactory().openSession();
            User u = (User)session.get(User.class, uid);
            if(u == null){
                errorlabel.setText("User does not exist");
                return;
            }
            if(u.getPassword().equals(password.getText())){
                model.setUser(u);
                username.setText("");
                password.setText("");
                errorlabel.setText("");
                setNeedToRedispatch(true);
                setVisible(false);
            //  setOpaque(false);
            }
            else{
                errorlabel.setText("Incorrect Password");
                return;
            }
        }

        @Override
        public void mouseEntered(MouseEvent arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void mouseExited(MouseEvent arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void mousePressed(MouseEvent arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void mouseReleased(MouseEvent arg0) {
            // TODO Auto-generated method stub

        }

    }
}