texteditorframe.java

Java实例入门

package textedit;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import com.borland.dbswing.*;
import javax.swing.text.Document;
import javax.swing.event.*;
import javax.swing.undo.*;
import java.awt.datatransfer.*;

/**
 * Title:
 * Description:
 * Copyright:    Copyright (c) 2001
 * Company:
 * @author
 * @version 1.0
 */

public class TextEditorFrame extends JFrame {
  JPanel contentPane;
  JMenuBar jMenuBar1 = new JMenuBar();
  JMenu jMenuFile = new JMenu();
  JMenuItem jMenuFileExit = new JMenuItem();
  JMenu jMenuHelp = new JMenu();
  JMenuItem jMenuHelpAbout = new JMenuItem();
  JToolBar jToolBar = new JToolBar();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  ImageIcon image1;
  ImageIcon image2;
  ImageIcon image3;
  JLabel statusBar = new JLabel();
  BorderLayout borderLayout1 = new BorderLayout();
  JScrollPane TextScrollPane = new JScrollPane();
  JTextArea jTextArea1 = new JTextArea();
  JMenuItem jMenuFileOpen = new JMenuItem();
  JMenuItem jMenuFileNew = new JMenuItem();
  JMenuItem jMenuFileSave = new JMenuItem();
  JMenuItem jMenuFileSaveas = new JMenuItem();
  JMenu jMenuEdit = new JMenu();
  JMenuItem jMenuEditFont = new JMenuItem();
  JMenuItem jMenuEditColor = new JMenuItem();
  JMenuItem jMenuEditBColor = new JMenuItem();
  String currentFileName;
  boolean  saveNeeded;
  FontChooser fontChooser1 = new FontChooser();
  Document document1;
  JFileChooser jFileChooser1 = new JFileChooser();
  final UndoManager edit= new UndoManager();
  Clipboard sysClipboard=Toolkit.getDefaultToolkit().getSystemClipboard();
  JMenuItem jMenuEditUndo = new JMenuItem();
  JMenuItem jMenuEditRedo = new JMenuItem();
  JMenuItem jMenuEditCopy = new JMenuItem();
  JMenuItem jMenuEditCut = new JMenuItem();
  JMenuItem jMenuEditPaste = new JMenuItem();
  JMenuItem jMenuEditSelAll = new JMenuItem();

  /**Construct the frame*/
  public TextEditorFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    image1 = new ImageIcon(textedit.TextEditorFrame.class.getResource("openFile.gif"));
    image2 = new ImageIcon(textedit.TextEditorFrame.class.getResource("closeFile.gif"));
    image3 = new ImageIcon(textedit.TextEditorFrame.class.getResource("help.gif"));
    //setIconImage(Toolkit.getDefaultToolkit().createImage(TextEditorFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("文本编辑器");
    this.addHierarchyBoundsListener(new java.awt.event.HierarchyBoundsAdapter() {
      public void ancestorResized(HierarchyEvent e) {
        this_ancestorResized(e);
      }
    });
   /* this.addWindowListener(new java.awt.event.WindowAdapter() {
      public void windowClosing(WindowEvent e) {

        this_windowClosing(e);
      }
    });*/
    statusBar.setText(" ");
    jMenuFile.setText("File");
    jMenuFileExit.setText("Exit");
    jMenuFileExit.addActionListener(new ActionListener()  {
      public void actionPerformed(ActionEvent e) {
        jMenuFileExit_actionPerformed(e);
      }
    });
    jMenuHelp.setText("Help");
    jMenuHelpAbout.setText("About");
    jMenuHelpAbout.addActionListener(new ActionListener()  {
      public void actionPerformed(ActionEvent e) {
        jMenuHelpAbout_actionPerformed(e);
      }
    });
    jButton1.setIcon(image1);
    jButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    jButton1.setToolTipText("Open File");
    jButton2.setIcon(image2);
    jButton2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton2_actionPerformed(e);
      }
    });
    jButton2.setToolTipText("Close File");
    jButton3.setIcon(image3);
    jButton3.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton3_actionPerformed(e);
      }
    });
    jButton3.setToolTipText("Help");
    jTextArea1.setLineWrap(true);
    jMenuFileOpen.setText("Open....");
    jMenuFileOpen.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuFileOpen_actionPerformed(e);
      }
    });
    jMenuFileNew.setText("New");
    jMenuFileNew.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuFileNew_actionPerformed(e);
      }
    });
    jMenuFileSave.setText("Save");
    jMenuFileSave.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuFileSave_actionPerformed(e);
      }
    });
    jMenuFileSaveas.setText("Save As...");
    jMenuFileSaveas.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuFileSaveas_actionPerformed(e);
      }
    });
    jMenuEdit.setText("Edit");
    jMenuEdit.addFocusListener(new java.awt.event.FocusAdapter() {
      public void focusGained(FocusEvent e) {
        jMenuEdit_focusGained(e);
      }
    });
    jMenuEditFont.setText("Font....");
    jMenuEditFont.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditFont_actionPerformed(e);
      }
    });
    jMenuEditColor.setText("Foreground Color");
    jMenuEditColor.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditColor_actionPerformed(e);
      }
    });
    jMenuEditBColor.setText("Background Color");
    jMenuEditBColor.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditBColor_actionPerformed(e);
      }
    });
    fontChooser1.setFrame(this);
    fontChooser1.setTitle("选择字体");
    document1=jTextArea1.getDocument();
    document1.addDocumentListener(new javax.swing.event.DocumentListener() {
      public void insertUpdate(DocumentEvent e) {
        document1_insertUpdate(e);
      }
      public void removeUpdate(DocumentEvent e) {
        document1_removeUpdate(e);
      }
      public void changedUpdate(DocumentEvent e) {
        document1_changedUpdate(e);
      }
    });
    document1.addUndoableEditListener(new javax.swing.event.UndoableEditListener() {
      public void undoableEditHappened(UndoableEditEvent e) {
        document1_undoableEditHappened(e);
      }
    });
    jMenuEditUndo.setText("Undo");
    jMenuEditUndo.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditUndo_actionPerformed(e);
      }
    });
    jMenuEditRedo.setText("redo");
    jMenuEditRedo.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditRedo_actionPerformed(e);
      }
    });
    jMenuEditCopy.setText("Copy");
    jMenuEditCopy.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditCopy_actionPerformed(e);
      }
    });
    jMenuEditCut.setText("Cut");
    jMenuEditCut.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditCut_actionPerformed(e);
      }
    });
    jMenuEditPaste.setText("Paste");
    jMenuEditPaste.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditPaste_actionPerformed(e);
      }
    });
    jMenuEditSelAll.setText("Select All");
    jMenuEditSelAll.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuEditSelAll_actionPerformed(e);
      }
    });
    jToolBar.add(jButton1);
    jToolBar.add(jButton2);
    jToolBar.add(jButton3);
    jMenuFile.add(jMenuFileNew);
    jMenuFile.add(jMenuFileOpen);
    jMenuFile.add(jMenuFileSave);
    jMenuFile.add(jMenuFileSaveas);
    jMenuFile.addSeparator();
    jMenuFile.add(jMenuFileExit);
    jMenuHelp.add(jMenuHelpAbout);
    jMenuBar1.add(jMenuFile);
    jMenuBar1.add(jMenuEdit);
    jMenuBar1.add(jMenuHelp);
    this.setJMenuBar(jMenuBar1);
    contentPane.add(jToolBar, BorderLayout.NORTH);
    contentPane.add(statusBar, BorderLayout.SOUTH);
    contentPane.add(TextScrollPane, BorderLayout.CENTER);
    TextScrollPane.getViewport().add(jTextArea1, null);
    jMenuEdit.add(jMenuEditUndo);
    jMenuEdit.add(jMenuEditRedo);
    jMenuEdit.addSeparator();
    jMenuEdit.add(jMenuEditSelAll);
    jMenuEdit.add(jMenuEditCopy);
    jMenuEdit.add(jMenuEditCut);
    jMenuEdit.add(jMenuEditPaste);
    jMenuEdit.addSeparator();
    jMenuEdit.add(jMenuEditFont);
    jMenuEdit.add(jMenuEditColor);
    jMenuEdit.add(jMenuEditBColor);
    document1 = jTextArea1.getDocument();