book.java

这是一个用Java编写的类似Windows的记事本

/*
 * Book.java
 *
 * Created on 2008年12月12日, 上午9:46
 */
import javax.swing.*;
import java.awt.*;
import java.awt.Font;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import javax.swing.JOptionPane;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.UndoableEditEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.undo.UndoManager;
import java.text.SimpleDateFormat;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.swing.*;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.StyledDocument;
import javax.swing.filechooser.FileFilter; 
/**
 *
 * @author  Admin
 */

public class Book extends javax.swing.JFrame {
    boolean isChange=false;
    private JFileChooser fileChooser= new JFileChooser();
    private final UndoManager Manager = new UndoManager();
    private UndoableEditListener ue = new UndoHander();
    private File fileName;
     PrintRequestAttributeSet attributes;
    /** Creates new form Book */
    public Book() {
        initComponents();
        Text.getDocument().addUndoableEditListener(ue);
        
       Text.getDocument().addDocumentListener( new DocumentListener(){
    public void changedUpdate(DocumentEvent de){
        isChange=true;
    }
    public void insertUpdate(DocumentEvent de){
        isChange=true;
    }
    public void removeUpdate(DocumentEvent de){
        isChange=true;
    }
        }
    );   
    }

     private boolean hasChange(){
        return isChange;
    }
        
    private void CopyPerformend(ActionEvent e){
        Text.copy();
    }
    
  private void CutPerformed(ActionEvent e){  
        Text.cut();
    }
  
  private void PastePerformed(ActionEvent e){
        Text.paste();
    }


  class UndoHander implements UndoableEditListener {
      public void undoableEditHappened(UndoableEditEvent eundo) {
            Manager.addEdit(eundo.getEdit());
        }
    }
  
 /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        menu = new javax.swing.JPopupMenu();
        itemUndo = new javax.swing.JMenuItem();
        itemRedo = new javax.swing.JMenuItem();
        itemCopy = new javax.swing.JMenuItem();
        itemCut = new javax.swing.JMenuItem();
        itemPaste = new javax.swing.JMenuItem();
        itemDelete = new javax.swing.JMenuItem();
        itemSelect = new javax.swing.JMenuItem();
        jScrollPane1 = new javax.swing.JScrollPane();
        Text = new javax.swing.JTextArea();
        Label = new javax.swing.JLabel();
        jPanel1 = new javax.swing.JPanel();
        jToolBar1 = new javax.swing.JToolBar();
        bNew = new javax.swing.JButton();
        bOpen = new javax.swing.JButton();
        bSave = new javax.swing.JButton();
        jToolBar2 = new javax.swing.JToolBar();
        bCut = new javax.swing.JButton();
        bCopy = new javax.swing.JButton();
        bPaste = new javax.swing.JButton();
        bDelete = new javax.swing.JButton();
        bUndo = new javax.swing.JButton();
        bRedo = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        File = new javax.swing.JMenu();
        New = new javax.swing.JMenuItem();
        jSeparator1 = new javax.swing.JSeparator();
        Open = new javax.swing.JMenuItem();
        jSeparator2 = new javax.swing.JSeparator();
        Save = new javax.swing.JMenuItem();
        SaveAs = new javax.swing.JMenuItem();
        Print = new javax.swing.JMenuItem();
        jSeparator3 = new javax.swing.JSeparator();
        Quit = new javax.swing.JMenuItem();
        Edit = new javax.swing.JMenu();
        Undo = new javax.swing.JMenuItem();
        Redo = new javax.swing.JMenuItem();
        jSeparator4 = new javax.swing.JSeparator();
        Copy = new javax.swing.JMenuItem();
        Cut = new javax.swing.JMenuItem();
        Paste = new javax.swing.JMenuItem();
        Delete = new javax.swing.JMenuItem();
        jSeparator5 = new javax.swing.JSeparator();
        Search = new javax.swing.JMenuItem();
        Insert = new javax.swing.JMenuItem();
        Time = new javax.swing.JMenuItem();
        SelectAll = new javax.swing.JMenuItem();
        Form = new javax.swing.JMenu();
        Font = new javax.swing.JMenuItem();
        SetColor = new javax.swing.JMenuItem();
        BackColor = new javax.swing.JMenuItem();
        Help = new javax.swing.JMenu();
        About = new javax.swing.JMenuItem();

        itemUndo.setText("撤消");
        itemUndo.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemUndoActionPerformed(evt);
            }
        });
        menu.add(itemUndo);

        itemRedo.setText("恢复");
        itemRedo.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemRedoActionPerformed(evt);
            }
        });
        menu.add(itemRedo);

        itemCopy.setText("复制");
        itemCopy.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemCopyActionPerformed(evt);
            }
        });
        menu.add(itemCopy);

        itemCut.setText("剪切");
        itemCut.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemCutActionPerformed(evt);
            }
        });
        menu.add(itemCut);

        itemPaste.setText("粘贴");
        itemPaste.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemPasteActionPerformed(evt);
            }
        });
        menu.add(itemPaste);

        itemDelete.setText("删除");
        itemDelete.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemDeleteActionPerformed(evt);
            }
        });
        menu.add(itemDelete);

        itemSelect.setText("全选");
        itemSelect.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemSelectActionPerformed(evt);
            }
        });
        menu.add(itemSelect);

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Java记事本----易华容");
        setResizable(false);

        Text.setColumns(20);
        Text.setRows(5);
        Text.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mousePressed(java.awt.event.MouseEvent evt) {
                TextMousePressed(evt);
            }
        });
        Text.addCaretListener(new javax.swing.event.CaretListener() {
            public void caretUpdate(javax.swing.event.CaretEvent evt) {
                TextCaretUpdate(evt);
            }
        });
        jScrollPane1.setViewportView(Text);

        jToolBar1.setRollover(true);

        bNew.setIcon(new javax.swing.ImageIcon(getClass().getResource("/new.gif"))); // NOI18N
        bNew.setToolTipText("新建");
        bNew.setFocusable(false);
        bNew.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        bNew.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        bNew.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bNewActionPerformed(evt);
            }
        });
        jToolBar1.add(bNew);
        bNew.getAccessibleContext().setAccessibleDescription("");

        bOpen.setIcon(new javax.swing.ImageIcon(getClass().getResource("/open.gif"))); // NOI18N
        bOpen.setToolTipText("打开");
        bOpen.setFocusable(false);
        bOpen.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        bOpen.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        bOpen.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bOpenActionPerformed(evt);
            }
        });
        jToolBar1.add(bOpen);

        bSave.setIcon(new javax.swing.ImageIcon(getClass().getResource("/save.gif"))); // NOI18N
        bSave.setToolTipText("保存");
        bSave.setFocusable(false);
        bSave.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        bSave.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        bSave.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bSaveActionPerformed(evt);
            }
        });
        jToolBar1.add(bSave);

        jToolBar2.setRollover(true);

        bCut.setIcon(new javax.swing.ImageIcon(getClass().getResource("/cut.gif"))); // NOI18N
        bCut.setToolTipText("剪切");
        bCut.setFocusable(false);
        bCut.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        bCut.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        bCut.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bCutActionPerformed(evt);
            }
        });
        jToolBar2.add(bCut);

        bCopy.setIcon(new javax.swing.ImageIcon(getClass().getResource("/copy.gif"))); // NOI18N
        bCopy.setToolTipText("复制");
        bCopy.setFocusable(false);
        bCopy.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        bCopy.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        bCopy.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bCopyActionPerformed(evt);
            }
        });
        jToolBar2.add(bCopy);

        bPaste.setIcon(new javax.swing.ImageIcon(getClass().getResource("/paste.gif"))); // NOI18N
        bPaste.setToolTipText("粘贴");
        bPaste.setFocusable(false);
        bPaste.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        bPaste.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        bPaste.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bPasteActionPerformed(evt);
            }
        });
        jToolBar2.add(bPaste);