Tugas Pertemuan 14 - 5025231186

Agym Kamil Ramadhan

5025231186

Implementasi GUI

import javax.swing.*;
import java.awt.*;

public class CombinedApp {
    private String username = "kamilganteng";
    private String password = "123";
    private JLabel imageLabel;
    private JFileChooser fileChooser;

    public static void main(String[] args) {
        SwingUtilities.invokeLater(CombinedApp::new);
    }

    public CombinedApp() {
        // Membuat Frame Utama
        JFrame mainFrame = new JFrame("Combined Application");
        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        mainFrame.setSize(400, 200);

        // Membuat Panel Utama
        JPanel mainPanel = new JPanel();
        JButton btnLogin = new JButton("Open Login Panel");
        JButton btnImageViewer = new JButton("Open Image Viewer");

        mainPanel.add(btnLogin);
        mainPanel.add(btnImageViewer);

        mainFrame.add(mainPanel);
        mainFrame.setLocationRelativeTo(null);
        mainFrame.setVisible(true);

        // Event Listener untuk Login Panel
        btnLogin.addActionListener(e -> openLoginPanel());

        // Event Listener untuk Image Viewer
        btnImageViewer.addActionListener(e -> openImageViewer());
    }

    // Login Panel
    private void openLoginPanel() {
        JFrame loginFrame = new JFrame("Login Panel");
        loginFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        loginFrame.setSize(400, 200);

        JPanel panel = new JPanel(new GridLayout(3, 2, 10, 10));
        JLabel lblUsername = new JLabel("Username:");
        JLabel lblPassword = new JLabel("Password:");
        JTextField txtUsername = new JTextField(20);
        JPasswordField txtPassword = new JPasswordField(20);
        JButton btnLogin = new JButton("Login");
        JButton btnCancel = new JButton("Cancel");

        panel.add(lblUsername);
        panel.add(txtUsername);
        panel.add(lblPassword);
        panel.add(txtPassword);
        panel.add(btnLogin);
        panel.add(btnCancel);

        loginFrame.add(panel);
        loginFrame.setLocationRelativeTo(null);
        loginFrame.setVisible(true);

        btnLogin.addActionListener(e -> {
            String inputUsername = txtUsername.getText();
            String inputPassword = new String(txtPassword.getPassword());

            if (inputUsername.equals(username) && inputPassword.equals(password)) {
                JOptionPane.showMessageDialog(loginFrame, "Login Successful!");
            } else {
                JOptionPane.showMessageDialog(loginFrame, "Login Denied!");
            }
        });

        btnCancel.addActionListener(e -> {
            txtUsername.setText("");
            txtPassword.setText("");
            txtUsername.requestFocus();
        });
    }

    // Image Viewer
    private void openImageViewer() {
        JFrame imageFrame = new JFrame("Image Viewer");
        imageFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        imageFrame.setSize(600, 400);

        JPanel panel = new JPanel(new BorderLayout());
        JPanel buttonPanel = new JPanel();

        imageLabel = new JLabel("No Image Selected", SwingConstants.CENTER);
        imageLabel.setPreferredSize(new Dimension(400, 300));
        imageLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK));

        JButton btnOpen = new JButton("Open Image");
        JButton btnClear = new JButton("Clear Image");

        buttonPanel.add(btnOpen);
        buttonPanel.add(btnClear);

        panel.add(imageLabel, BorderLayout.CENTER);
        panel.add(buttonPanel, BorderLayout.SOUTH);

        imageFrame.add(panel);
        imageFrame.setLocationRelativeTo(null);
        imageFrame.setVisible(true);

        fileChooser = new JFileChooser();

        btnOpen.addActionListener(e -> {
            int returnValue = fileChooser.showOpenDialog(imageFrame);

            if (returnValue == JFileChooser.APPROVE_OPTION) {
                String filePath = fileChooser.getSelectedFile().getAbsolutePath();
                ImageIcon imageIcon = new ImageIcon(filePath);
                imageLabel.setIcon(new ImageIcon(imageIcon.getImage().getScaledInstance(400, 300, Image.SCALE_SMOOTH)));
                imageLabel.setText("");
            }
        });

        btnClear.addActionListener(e -> {
            imageLabel.setIcon(null);
            imageLabel.setText("No Image Selected");
        });
    }
}

1. 
   

   Main Menu:

   • Terdapat dua tombol: "Open Login Panel" untuk membuka panel login dan "Open Image Viewer" untuk menampilkan aplikasi penampil gambar.
   • Menu ini dirancang untuk membuat aplikasi lebih interaktif dan terorganisir.

2. Login Panel:

   • Sama seperti pada latihan 1, panel login dibuat dengan komponen JLabel, JTextField, dan JPasswordField.
   • Tombol "Login" memeriksa kecocokan username dan password, sedangkan tombol "Cancel" menghapus input.

3. Image Viewer:

   • Sama seperti pada latihan 2, aplikasi ini menggunakan JFileChooser untuk memilih gambar, kemudian menampilkan gambar di JLabel.

4. Manajemen Frame:

   • JFrame.DISPOSE_ON_CLOSE memastikan frame yang dibuka hanya menutup frame tertentu, sementara aplikasi utama tetap berjalan.