/*
 *  ==============================================================
 *  DemoPopupMenu.java : Create text area window with swing pop-up
 *                       menu.
 * 
 *  Adapted from : Pantham S., Pure JFC Swing, 1999.
 *  Modified by : Mark Austin                          March, 2001
 *  ==============================================================
 */

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

public class DemoPopupMenu extends JApplet {

    JPopupMenu popupMenu;
    JMenuItem saveItem, cutItem, copyItem, pasteItem,
              helpItem;
    JTextArea textArea;
    Container container;

    public void init() {

        // 1. Get a handle on the frame's content pane.

        container = this.getContentPane();

        // 2. Create and add the text area to the content pane.

        textArea = new JTextArea("Click the mouse right button inside "
                                 + "\nthe frame.");
        textArea.setFont(new Font("Monospaced", Font.PLAIN, 14));

        container.add(textArea);

        // 3. Create a pop-up menu.

        popupMenu = new JPopupMenu("Test Popup Menu");

        // 4. Create menu items and add them to the pop-up menu.
        // Also add some separators as shown in the code.

        saveItem = new JMenuItem("Save");
        popupMenu.add(saveItem);

        popupMenu.addSeparator();

        cutItem = new JMenuItem("Cut");
        popupMenu.add(cutItem);

        copyItem = new JMenuItem("Copy");
        popupMenu.add(copyItem);

        pasteItem = new JMenuItem("Paste");
        popupMenu.add(pasteItem);

        popupMenu.addSeparator();

        helpItem = new JMenuItem("Help");
        popupMenu.add(helpItem);

        // 5. Add the mouse listener to the content pane.

        PopupMenuListener pml = new PopupMenuListener();
        textArea.addMouseListener(pml);
    }

    // 7. Mouse listener class.

    class PopupMenuListener extends MouseAdapter {
       	public void mousePressed(MouseEvent me) {
            showPopup(me);
        }

        public void mouseReleased(MouseEvent me) {
            showPopup(me);
        }

        private void showPopup(MouseEvent me) {
            if (me.isPopupTrigger()) {
                popupMenu.show(me.getComponent(),
                               me.getX(), me.getY());
            }
        }
    }
}