LOGIN_GUI

import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
public class LoginPage {
    public static void main(String[] args) {
      
        JFrame frame = new JFrame("Hardware POS Management System");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 300);
        frame.setLocationRelativeTo(null);
        frame.setLayout(new BorderLayout());

        // <NAV>
        JPanel nav = new JPanel();
        nav.setPreferredSize(new Dimension(0,40));
        nav.setBackground(new Color(44, 62, 80));
        nav.setLayout(new BorderLayout());
        nav.setBorder(BorderFactory.createMatteBorder(1, 0, 1, 0,Color.white));

        JLabel titleLabel = new JLabel("Account Login", SwingConstants.CENTER);
        titleLabel.setForeground(new Color(236, 240, 241));
        titleLabel.setFont(new Font("Verdana", Font.BOLD, 20));
        titleLabel.setHorizontalAlignment(SwingConstants.CENTER);
        nav.add(titleLabel, BorderLayout.CENTER);
        // </NAV>


        // <CENTERPAGE>
        JPanel centerPanel = new JPanel();
        centerPanel.setLayout(new GridLayout(5,1,0,5));
        centerPanel.setBorder(new EmptyBorder(0,80,0,80));
        centerPanel.setBackground(new Color(149, 165, 166));
    
        JLabel username = new JLabel("Username:");
        username.setHorizontalAlignment(SwingConstants.CENTER);
        username.setFont(new Font("Verdana",Font.BOLD,15));     

        JTextField usernameTextField = new JTextField();
        usernameTextField.setHorizontalAlignment(SwingConstants.CENTER);
        usernameTextField.setBorder(new RoundedBorder(10));


        JLabel password = new JLabel("Password:");
        password.setHorizontalAlignment(SwingConstants.CENTER);
        password.setFont(new Font("Verdana",Font.BOLD,15));

        JPasswordField passwordField  = new JPasswordField();
        passwordField.setHorizontalAlignment(SwingConstants.CENTER);
        passwordField.setBorder(new RoundedBorder(10));


        JButton login = new JButton("Login");
        login.setBorder(new RoundedBorder(5));
        login.setFont(new Font("Verdana",Font.BOLD,14));
        login.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String username = usernameTextField.getText();
                char[] password = passwordField.getPassword();

                if (username.equals("admin") && String.valueOf(password).equals("password")) {
                    JOptionPane.showMessageDialog(frame, "Login Successful!");
                    Dashboard.showNextFrame();
                } else {
                    JOptionPane.showMessageDialog(frame, "Incorrect Username or Password");
                }
            }
        });

        JPanel loginButton = new JPanel(new FlowLayout(FlowLayout.CENTER));
        loginButton.add(login);
        loginButton.setBackground(new Color(149, 165, 166));

       
        centerPanel.add(username);
        centerPanel.add(usernameTextField);
        centerPanel.add(password);
        centerPanel.add(passwordField);
        centerPanel.add(loginButton);
        // </CENTERPAGE>


        // <bottom>
        JPanel bottomPanel = new JPanel();
        bottomPanel.setBackground(new Color(44, 62, 80));
        bottomPanel.setPreferredSize(new Dimension(0,30));
        bottomPanel.setBorder(BorderFactory.createMatteBorder(1, 0, 1, 0,Color.white));


        JLabel bottomTitle = new JLabel("Point of Sale System Management @2024", SwingConstants.CENTER);
        bottomTitle.setForeground(new Color(255, 255, 255));
        bottomPanel.add(bottomTitle);
        // </bottom>

        
        frame.add(nav,BorderLayout.NORTH);
        frame.add(centerPanel,BorderLayout.CENTER);
        frame.add(bottomPanel,BorderLayout.SOUTH);
        frame.setVisible(true);
    }
}






class RoundedBorder implements Border {
    private int radius;

    public RoundedBorder(int radius) {
        this.radius = radius;
    }

    @Override
    public Insets getBorderInsets(Component c) {
        return new Insets(5, 5, 5, 5); // Define padding inside the border
    }

    @Override
    public boolean isBorderOpaque() {
        return true; // Border will be opaque
    }

    @Override
    public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        
        // Set border color
        g2d.setColor(Color.BLACK);

        // Draw the rounded rectangle border
        g2d.drawRoundRect(x, y, width - 1, height - 1, radius, radius); 
    }
}