Dialogues - An Introduction to Graphical User Interfaces with Java Swing - page 108

The real actions are implemented later. We implement a listener in class Edi-
torListener which monitors the menu items. As a reaction to selecting a menu
item, the appropriate method of the class EditorSkeletonFrame is called. Class
EditorListener will not be changed later on, when we complete the editor.

File: its/Dialogs/EditorSkeletonFrame.java

1. package its.Dialogs;
2.
3.
4. import its.SimpleFrame.SimpleFrame;
5. import java.awt.*;
6. import javax.swing.*;
7. import java.io.*;
8.
9. public class EditorSkeletonFrame extends SimpleFrame {
10.
11. private JEditorPane textDisplayPane;

12.
13.

public EditorSkeletonFrame()

14. {

15. textDisplayPane = new JEditorPane();

16. JScrollPane scrollPane = new JScrollPane(textDisplayPane);

17. this .getContentPane().add(scrollPane,BorderLayout.CENTER);

18.
19. // Create menu bar, menus and menu items
20. JMenuBar menubar = new JMenuBar();
21. this .setJMenuBar(menubar);
22. JMenu fileMenu = new JMenu("File");
23. JMenu toolMenu = new JMenu("Tools");
24. menubar.add(fileMenu);
25. menubar.add(toolMenu);
26. JMenuItem loadItem = new JMenuItem("Load");
27. JMenuItem saveItem = new JMenuItem("Save");
28. JMenuItem exitItem = new JMenuItem("Exit");
29. JMenuItem searchItem = new JMenuItem("Search");
30. fileMenu.add(loadItem);
31. fileMenu.add(saveItem);
32. fileMenu.addSeparator();
33. fileMenu.add(exitItem);
34. toolMenu.add(searchItem);
35. // Create a listener and add it to the menu items
36. EditorListener editorListener = new EditorListener( this );

37. loadItem.addActionListener(editorListener);

38. saveItem.addActionListener(editorListener);

39. exitItem.addActionListener(editorListener);