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LoginPage.java
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LoginPage.java
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import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.border.Border;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Objects;
/**
* This class is the graphical implementation of the Login page. Customers that already have an account can enter
* their email and password, and if they match an account in the system, their homepage is displayed. Otherwise, a
* prompt saying the account doesn't exist is shown. This page is shown when the system is initialized, and the customer
* can either log in with their existing account or register for an account. Customers could also go to the Forgot
* Password page. No other pages can be accessed through here, as all other functionality/use-cases require the customer
* to be logged in (the rest are accessible after login from the homepage).
*/
public class LoginPage extends JFrame implements ActionListener
{
// Constants
static final int WIDTH = 1920;
static final int LENGTH = 1080;
// GUI Components for LoginPage
private final JButton loginButton;
private final JButton clearButton;
private final JButton registerButton;
private final JButton forgotButton;
private final JTextField emailField;
private final JPasswordField passwordField;
private final JCheckBox showPassword;
// Objects
BankAutomated logic;
CA customer;
/**
* LoginPage Constructor, this constructor creates all the frame specifications for the login page
* @param BA BankAutomated object, handles all the logic and passes it to other pages if necessary
*/
public LoginPage(BankAutomated BA)
{
// Set title of the frame
this.setTitle("Welcome! Login to Continue...");
this.setLayout(null);
// Set the bank automated object
logic = BA;
// Set the background image
JLabel welcome = new JLabel("Welcome to The");
welcome.setFont(new Font("Osward", Font.PLAIN, 38));
welcome.setBounds(825, 50, 350, 40);
this.add(welcome);
// Set the header
JLabel bcs = new JLabel("Bank Of Computer Science");
bcs.setFont(new Font("Imprint MT Shadow", Font.BOLD, 38));
bcs.setForeground(new Color(246, 160, 62));
bcs.setBounds(720, 100, 500, 40);
this.add(bcs);
// Set the label for email field
JLabel email = new JLabel("Email: ");
email.setFont(new Font("Osward", Font.PLAIN, 28));
email.setBounds(720, 250, 150, 30);
this.add(email);
// Set the email field
Border border = BorderFactory.createLineBorder(Color.BLACK, 2);
emailField = new JTextField(150);
emailField.setBounds(875, 250, 350, 30);
emailField.setFont(new Font("Arial", Font.PLAIN, 16));
emailField.setBorder(border);
this.add(emailField);
// Set the label for password field
JLabel password = new JLabel("Password: ");
password.setFont(new Font("Osward", Font.PLAIN, 28));
password.setBounds(720, 350, 150, 30);
this.add(password);
// Set the password field
passwordField = new JPasswordField(100);
passwordField.setBounds(875, 350, 350, 30);
passwordField.setFont(new Font("Arial", Font.PLAIN, 16));
passwordField.setBorder(border);
this.add(passwordField);
// Set the show password checkbox
showPassword = new JCheckBox("Show Password");
showPassword.setBounds(875, 380, 200, 30);
showPassword.setBackground(Color.white);
showPassword.setForeground(Color.black);
showPassword.addActionListener(this);
this.add(showPassword);
// Set the login button
loginButton = new JButton("SIGN IN");
loginButton.setFont(new Font("SansSerif", Font.PLAIN, 20));
loginButton.setBounds(825, 450, 120, 50);
loginButton.setBackground(Color.black);
loginButton.setForeground(Color.white);
loginButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
loginButton.addActionListener(this);
this.add(loginButton);
// Set the clear button
clearButton = new JButton("CLEAR");
clearButton.setFont(new Font("SansSerif", Font.PLAIN, 20));
clearButton.setBounds(1000, 450, 120, 50);
clearButton.setBackground(Color.black);
clearButton.setForeground(Color.white);
clearButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
clearButton.addActionListener(this);
this.add(clearButton);
// Set the register button
registerButton = new JButton("REGISTER");
registerButton.setFont(new Font("SansSerif", Font.PLAIN, 20));
registerButton.setBounds(825, 525, 295, 50);
registerButton.setBackground(Color.black);
registerButton.setForeground(Color.white);
registerButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
registerButton.addActionListener(this);
this.add(registerButton);
// Set the forgot password button
Border emptyBorder = BorderFactory.createEmptyBorder();
forgotButton = new JButton("Forgot Password?");
forgotButton.setFont(new Font("SansSerif", Font.BOLD, 10));
forgotButton.setBounds(1135, 380, 90, 30);
forgotButton.setBorder(emptyBorder);
forgotButton.setBackground(Color.white);
forgotButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
forgotButton.setHorizontalAlignment(SwingConstants.RIGHT);
forgotButton.addActionListener(this);
this.add(forgotButton);
// Window listener, logout when the window is closed
this.addWindowListener(new WindowEventHandler() {
@Override
public void windowClosing(WindowEvent evt) {
//BA.logout (logic.logout) would be called here
//Write all changes to the file
logic.logout();
Window[] windows = Window.getWindows();
for (Window window : windows) {
window.dispose();
}
System.exit(0);
}
});
// Set the frame
this.setSize(WIDTH, LENGTH);
this.getContentPane().setBackground(Color.white);
this.getRootPane().setDefaultButton(loginButton);
this.setVisible(true);
this.setExtendedState(JFrame.MAXIMIZED_BOTH);
}
/**
* paint method, overrides the JFrame paint method in order to allow for custom graphical design
* @param g Graphics object
*/
public void paint(Graphics g)
{
// paint the background
super.paint(g);
Graphics2D g2 = (Graphics2D) g;
Color myRed = new Color(232, 30, 30);
Color myBlack = new Color(131, 26, 26);
GradientPaint redToBlack = new GradientPaint(0, 0, myRed, 0, 750, myBlack);
g2.setPaint(redToBlack);
g2.fillRect(0, 0, 650, LENGTH+5);
// paint the logo
try
{
BufferedImage image = ImageIO.read(Objects.requireNonNull(getClass().getResource("BCS_logo.png")));
g.drawImage(image, -25, 175, this);
}
catch (IOException e)
{
System.out.println(e.getMessage());
}
}
/**
* actionPerformed method (implementing ActionListener). BankAutomated checks the validity and authenticity of the
* data inputted, and any buttons that are pressed are handled in this method (e.g., other pages are displayed,
* password inputted is shown, etc.).
* @param e the event to be processed
*/
@Override
public void actionPerformed(ActionEvent e)
{
// Show password
if (showPassword.isSelected())
{
passwordField.setEchoChar('\u0000');
}
// Hide password
else
{
passwordField.setEchoChar('*');
}
// Clear the fields
if (e.getSource() == clearButton)
{
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
}
// Login
else if (e.getSource() == loginButton)
{
//Call the BA.login (logic.login in this case)
String email = emailField.getText();
String password = String.valueOf(passwordField.getPassword());
//Check if email and password are blank
if (email.equals("") || password.equals(""))
{
JOptionPane.showMessageDialog(this, "Email/Password cannot be blank.");
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
return;
}
//Check validity of email and whether is exists
if (logic.validEmail(email) && !logic.existingEmail(email))
{
JOptionPane.showMessageDialog(this, "Email is not registered with an " +
"account.\nSelect Register to create an account with us.");
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
return;
}
customer = logic.loginAccount(email, password);
//Check if the login was successful, if so, show the homepage
if (customer != null)
{
// Debug System.out.println("Success");
//Show homepage for the customer
HomePage home = new HomePage(this, logic, customer);
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
this.setVisible(false);
home.setVisible(true);
}
//If login was unsuccessful, show error message
else
{
// Debug System.out.println("Incorrect");
JOptionPane.showMessageDialog(this, "Email/Password invalid. Try again.");
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
}
}
// Register
else if (e.getSource() == registerButton)
{
RegisterPage register = new RegisterPage(logic, this);
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
this.setVisible(false);
register.setVisible(true);
}
// Forgot password
else if (e.getSource() == forgotButton)
{
emailField.setText("");
passwordField.setText("");
showPassword.setSelected(false);
passwordField.setEchoChar('*');
ForgotPage forgot = new ForgotPage(logic, this);
this.setVisible(false);
forgot.setVisible(true);
}
}
}
/**
* This class here allows the BankAutomated logout() function to be called before the system exits/terminates in order
* to store any customer objects created to the database (People.ser file) before terminating the system.
* A window listener is added to all graphical classes to implement that functionality so data is not lost between
* re-runs of the system.
*/
class WindowEventHandler extends WindowAdapter {
public void windowClosing(WindowEvent evt) {
Window[] windows = Window.getWindows();
for (Window window : windows) {
window.dispose();
}
System.exit(0);
}
}