source: tmcsimulator/trunk/src/tmcsim/client/cadclientgui/screens/Login.java @ 289

package tmcsim.client.cadclientgui.screens;



import java.awt.Color;

import static java.awt.Component.LEFT_ALIGNMENT;

import java.awt.Dimension;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import javax.swing.Box;

import javax.swing.BoxLayout;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

import javax.swing.SwingConstants;



/**

 * This class contains the view and controller for the Login screen. The view

 * was not built using a GUI builder plug-in (but may want to consider doing so

 * in the future), and the controller uses listeners to control how the view and

 * data act.

 *

 * @author Vincent

 */

public class Login extends JFrame implements KeyListener

{

    private Box login;

    private JTextField userNameField;

    private JTextField passwordField;

    public static String kNamePrompt = "Enter your name";



    public Login()

    {

        initView();

    }



    private ActionListener newEnterActionListener()

    {

        return new ActionListener()

        {

            public void actionPerformed(ActionEvent e)

            {

                setVisible(false);

                // Check if user provided a username JD

                String userEntry = userNameField.getText();

                if (userEntry.equals(kNamePrompt))

                {

                    ScreenManager.setUserName("Anonymous Trainee");

                }

                else

                {

                    ScreenManager.setUserName(userEntry);

                }

                ScreenManager.openCADMenu();

                ScreenManager.openAssignedIncidents();

                ScreenManager.openUnitStatus();

                ScreenManager.openPendingIncidents();

                ScreenManager.openPowerlineUI();

                if (!passwordField.getText().equals("Dispatcher"))

                {

                    ScreenManager.setDispatcherAuthority(false);

                }

            }

        };

    }



    private ActionListener newExitActionListener()

    {

        return new ActionListener()

        {

            public void actionPerformed(ActionEvent e)

            {

                System.exit(0);

            }

        };

    }



    private void initView()

    {

        login = new Box(BoxLayout.Y_AXIS);

        login.setAlignmentX(LEFT_ALIGNMENT);

        JPanel whiteBackground = new JPanel();

        whiteBackground.setAlignmentX(LEFT_ALIGNMENT);

        whiteBackground.setBackground(Color.WHITE);

        whiteBackground.setMaximumSize(new Dimension(750, 150));

        whiteBackground.setMinimumSize(new Dimension(750, 150));

        whiteBackground.setPreferredSize(new Dimension(750, 150));

        login.add(whiteBackground);



        JPanel blueBackground = new JPanel();

        blueBackground.setAlignmentX(LEFT_ALIGNMENT);

        blueBackground.setBackground(new Color(50, 150, 200));

        blueBackground.setMaximumSize(new Dimension(750, 350));

        blueBackground.setMinimumSize(new Dimension(750, 350));

        blueBackground.setPreferredSize(new Dimension(750, 350));



        JLabel title = new JLabel();

        // Check if we are running from a jar to put message from manifest into title

        Package clientpkg = Login.class.getPackage();

        String builddate = clientpkg.getImplementationVersion();

        String version = "";

        if (builddate != null)

        {

            version = "          (build " + builddate + ")";

        }

        else // We're running from a dev environment

        {

            version = "           00-00-00 00:00";

        }



        title.setText("Inform CAD 5.3 Patch 5 ");

        title.setHorizontalAlignment(SwingConstants.CENTER);

        title.setFont(new Font("Arial", Font.PLAIN, 22));

        title.setForeground(Color.WHITE);

        title.setMaximumSize(new Dimension(750, 100));

        title.setMinimumSize(new Dimension(750, 100));

        title.setPreferredSize(new Dimension(750, 100));

        blueBackground.add(title);



        JLabel builddateLabel = new JLabel(version);

        builddateLabel.setForeground(Color.WHITE);

        builddateLabel.setHorizontalAlignment(SwingConstants.CENTER);

        blueBackground.add(builddateLabel);



        Box leftBox = new Box(BoxLayout.Y_AXIS);

        leftBox.setMaximumSize(new Dimension(350, 90));

        leftBox.setMinimumSize(new Dimension(350, 90));

        leftBox.setPreferredSize(new Dimension(350, 90));

        leftBox.setAlignmentX(LEFT_ALIGNMENT);



        JLabel userNameLabel = new JLabel("User name ");

        userNameLabel.setForeground(Color.WHITE);

        userNameField = new JTextField(kNamePrompt);

        userNameField.addKeyListener(this);

        userNameField.setForeground(Color.GRAY);

        Box userNameBox = new Box(BoxLayout.X_AXIS);

        userNameBox.setAlignmentX(LEFT_ALIGNMENT);

        userNameBox.add(Box.createHorizontalStrut(10));

        userNameBox.add(userNameLabel);

        userNameBox.add(userNameField);

        leftBox.add(userNameBox);



        JLabel passwordLabel = new JLabel("Password  ");

        passwordLabel.setForeground(Color.WHITE);

        passwordField = new JTextField("Not required");

        passwordField.setEnabled(false);

        Box passwordBox = new Box(BoxLayout.X_AXIS);

        passwordBox.setAlignmentX(LEFT_ALIGNMENT);

        passwordBox.add(Box.createHorizontalStrut(10));

        passwordBox.add(passwordLabel);

        passwordBox.add(passwordField);

        leftBox.add(Box.createVerticalStrut(10));

        leftBox.add(passwordBox);



        JButton enter = new JButton("Login");

        enter.addActionListener(newEnterActionListener());

        JButton newPassword = new JButton("New Password");

        newPassword.setEnabled(false);

        JButton exit = new JButton("Exit");

        exit.addActionListener(newExitActionListener());

        JButton selectAll = new JButton("Select All");

        selectAll.setEnabled(false);

        JButton unselectAll = new JButton("Unselect all");

        unselectAll.setEnabled(false);

        Box buttonBox = new Box(BoxLayout.X_AXIS);

        buttonBox.setAlignmentX(LEFT_ALIGNMENT);

        buttonBox.add(Box.createHorizontalStrut(75));

        buttonBox.add(enter);

        buttonBox.add(Box.createHorizontalStrut(20));

        buttonBox.add(newPassword);

        buttonBox.add(Box.createHorizontalStrut(20));

        buttonBox.add(exit);

        buttonBox.add(Box.createHorizontalStrut(125));

        buttonBox.add(selectAll);

        buttonBox.add(Box.createHorizontalStrut(10));

        buttonBox.add(unselectAll);



        Box rightBox = new Box(BoxLayout.Y_AXIS);

        rightBox.setAlignmentX(LEFT_ALIGNMENT);

        rightBox.setMaximumSize(new Dimension(250, 90));

        rightBox.setMinimumSize(new Dimension(250, 90));

        rightBox.setPreferredSize(new Dimension(250, 90));

        JLabel position = new JLabel("Positions:");

        position.setPreferredSize(new Dimension(250, 20));

        position.setMaximumSize(new Dimension(250, 20));

        position.setMinimumSize(new Dimension(250, 20));

        position.setBackground(Color.BLACK);

        position.setHorizontalAlignment(SwingConstants.LEFT);

        position.setForeground(Color.WHITE);

        rightBox.add(position);

        JPanel list = new JPanel();

        rightBox.add(list);



        Box centerBox = new Box(BoxLayout.X_AXIS);

        centerBox.setAlignmentX(LEFT_ALIGNMENT);

        centerBox.add(leftBox);

        centerBox.add(Box.createHorizontalStrut(75));

        centerBox.add(rightBox);

        blueBackground.add(centerBox);

        blueBackground.add(Box.createVerticalStrut(125));

        blueBackground.add(buttonBox);

        login.add(blueBackground);



        getContentPane().add(login);

        setUndecorated(true);

        pack();

        setLocationRelativeTo(null);

        setDefaultCloseOperation(EXIT_ON_CLOSE);

        setVisible(true);

    }



    /** 

     * This keylistener removes the prompt displayed in the username text box

     * the first time the user presses a key.  Fixes #96

     * @author jdalbey

     * @param evt 

     */

    public void keyPressed(KeyEvent evt) 

    {

        // See if the text in the box is the initial prompt

        // If so, the user hasn't typed anything yet, this is the 1st keypress

        // Even the shift key will be caught here.

        if (userNameField.getText().equals(kNamePrompt))

        {

            userNameField.setText("");

            // Change the text color from gray to black

            userNameField.setForeground(Color.BLACK);

        }

    }



    public void keyReleased(KeyEvent e) {}

    public void keyTyped(KeyEvent e) {}

}