Java/Блокнот/NoteFrame.java 2

/************************************************************
 ** Title:  Блокнот 
 ** Class:  NoteFrame
 ** Author: Oleg Imanilov
 **   Copyright (c) 2007 Oleg Imanilov.
 **   Permission is granted to copy, distribute and/or
 **   modify  this  document under  the  terms  of the
 **   GNU Free Documentation License
 ** Notes: Версия 2
 ************************************************************/

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

public class NoteFrame extends JFrame {
  MenuBar menuBar = new MenuBar();
  private MenuItem menuOpen;
  private MenuItem menuSave;
  private MenuItem menuExit;
  private MenuItem menuAbout;
  private JTextArea theText;
  
  public NoteFrame() {
    super("Note");
    initMenu();
    initMainPanel();
    initListeners();
  }
  
  private void initMenu() {
    PopupMenu fileMenu = new PopupMenu("File");
    PopupMenu helpMenu = new PopupMenu("Help");    
    
    menuOpen = new MenuItem("Open", new MenuShortcut(KeyEvent.VK_O));
    menuSave = new MenuItem("Save", new MenuShortcut(KeyEvent.VK_S));
    menuExit = new MenuItem("Exit", new MenuShortcut(KeyEvent.VK_X));
    menuAbout = new MenuItem("About", new MenuShortcut(KeyEvent.VK_A));
    
    fileMenu.add(menuOpen);
    fileMenu.add(menuSave);
    fileMenu.add(menuExit);
    
    helpMenu.add(menuAbout);
    
    menuBar.add(fileMenu);
    menuBar.add(helpMenu);
    this.setMenuBar(menuBar);
  }

  private void initMainPanel() {
    JPanel panel = new JPanel(new BorderLayout());
    theText = new JTextArea();
    panel.add(new JScrollPane(theText), BorderLayout.CENTER);
    getContentPane().add(panel);
  }
  
  private void initListeners() {
    this.addWindowListener(new WindowAdapter(){
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    
    menuAbout.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent arg0) {
        //TODO: about
      }
    });
    
    menuExit.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent arg0) {
        System.exit(0);
      }
    });
    
    menuSave.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent arg0) {
        //TODO: save file
      }
    });

    menuOpen.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent arg0) {
        // TODO: open file
      }
    });    
  }
}

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