基于Java Swing的文本编辑器

很俗的东西了…纯属学习用的…

Anyway…


[code=’java’]
package uitest;
import java.awt.Toolkit;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import java.awt.Dimension;

public class TextEditClass {
boolean packFrame = false;/**
* Construct and show the application.
*/
public TextEditClass() {
TextEditFrame frame = new TextEditFrame();
// Validate frames that have preset sizes
// Pack frames that have useful preferred size info, e.g. from their layout
if (packFrame) {
frame.pack();
} else {
frame.validate();
}

// Center the window
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = frame.getSize();
if (frameSize.height > screenSize.height) {
frameSize.height = screenSize.height;
}
if (frameSize.width > screenSize.width) {
frameSize.width = screenSize.width;
}
frame.setLocation((screenSize.width - frameSize.width) / 2,
(screenSize.height - frameSize.height) / 2);
frame.setVisible(true);
}

/**
* Application entry point.
*
* @param args String[]
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception exception) {
exception.printStackTrace();
}

new TextEditClass();
}
});
}
}
[/code]

[code='java']
package uitest;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;

/**
*

Title:

*
*

Description:

*
*

Copyright: Copyright (c) 2006

*
*

Company:

*
* @author not attributable
* @version 1.0
*/
public class TextEditFrame_AboutBox extends JDialog implements ActionListener {
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
JPanel insetsPanel1 = new JPanel();
JPanel insetsPanel2 = new JPanel();
JPanel insetsPanel3 = new JPanel();
JButton button1 = new JButton();
JLabel imageLabel = new JLabel();
JLabel label1 = new JLabel();
JLabel label2 = new JLabel();
JLabel label3 = new JLabel();
JLabel label4 = new JLabel();
ImageIcon image1 = new ImageIcon();
BorderLayout borderLayout1 = new BorderLayout();
BorderLayout borderLayout2 = new BorderLayout();
FlowLayout flowLayout1 = new FlowLayout();
GridLayout gridLayout1 = new GridLayout();
String product = "";
String version = "1.0";
String copyright = "Copyright (c) 2006";
String comments = "";

public TextEditFrame_AboutBox(Frame parent) {
super(parent);
try {
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
jbInit();
} catch (Exception exception) {
exception.printStackTrace();
}
}

public TextEditFrame_AboutBox() {
this(null);
}

/**
* Component initialization.
*
* @throws java.lang.Exception
*/
private void jbInit() throws Exception {
image1 = new ImageIcon(uitest.TextEditFrame.class.getResource(
"about.png"));
imageLabel.setIcon(image1);
setTitle("About");
panel1.setLayout(borderLayout1);
panel2.setLayout(borderLayout2);
insetsPanel1.setLayout(flowLayout1);
insetsPanel2.setLayout(flowLayout1);
insetsPanel2.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
gridLayout1.setRows(4);
gridLayout1.setColumns(1);
label1.setText(product);
label2.setText(version);
label3.setText(copyright);
label4.setText(comments);
insetsPanel3.setLayout(gridLayout1);
insetsPanel3.setBorder(BorderFactory.createEmptyBorder(10, 60, 10, 10));
button1.setText("OK");
button1.addActionListener(this);
insetsPanel2.add(imageLabel, null);
panel2.add(insetsPanel2, BorderLayout.WEST);
getContentPane().add(panel1, null);
insetsPanel3.add(label1, null);
insetsPanel3.add(label2, null);
insetsPanel3.add(label3, null);
insetsPanel3.add(label4, null);
panel2.add(insetsPanel3, BorderLayout.CENTER);
insetsPanel1.add(button1, null);
panel1.add(insetsPanel1, BorderLayout.SOUTH);
panel1.add(panel2, BorderLayout.NORTH);
setResizable(true);
}

/**
* Close the dialog on a button event.
*
* @param actionEvent ActionEvent
*/
public void actionPerformed(ActionEvent actionEvent) {
if (actionEvent.getSource() == button1) {
dispose();
}
}
}
[/code]

[code='java']
package uitest;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JToolBar;
import javax.swing.JButton;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import com.borland.dbswing.FontChooser;
import javax.swing.JFileChooser;
import com.borland.dbswing.IntlSwingSupport;
import java.io.*;
import javax.swing.JOptionPane;
import javax.swing.text.Document;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import com.borland.dbswing.DBTextDataBinder;

/**
*

Title:

*
*

Description:

*
*

Copyright: Copyright (c) 2006

*
*

Company:

*
* @author not attributable
* @version 1.0
*/
public class TextEditFrame extends JFrame {
IntlSwingSupport intlSwingSupport1 = new IntlSwingSupport();
JPanel contentPane;
BorderLayout borderLayout1 = new BorderLayout();
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 = new ImageIcon(uitest.TextEditFrame.class.getResource(
"openFile.png"));
ImageIcon image2 = new ImageIcon(uitest.TextEditFrame.class.getResource(
"closeFile.png"));
ImageIcon image3 = new ImageIcon(uitest.TextEditFrame.class.getResource(
"help.png"));
JLabel statusBar = new JLabel();
JScrollPane jScrollPane1 = new JScrollPane();
JTextArea jTextArea1 = new JTextArea();
JMenuItem jMenuItem1 = new JMenuItem();
JMenuItem jMenuItem2 = new JMenuItem();
JMenuItem jMenuItem3 = new JMenuItem();
JMenuItem jMenuItem4 = new JMenuItem();
JMenu jMenu1 = new JMenu();
JMenuItem jMenuItem5 = new JMenuItem();
JMenuItem jMenuItem6 = new JMenuItem();
JMenuItem jMenuItem7 = new JMenuItem();
FontChooser fontChooser1 = new FontChooser();
JFileChooser jFileChooser1 = new JFileChooser();
String currFileName = null;
boolean dirty = false;
Document document1 = jTextArea1.getDocument();
DBTextDataBinder dBTextDataBinder1 = new DBTextDataBinder();

public TextEditFrame() {
try {
setDefaultCloseOperation(EXIT_ON_CLOSE);
jbInit();
updateCaption();
} catch (Exception exception) {
exception.printStackTrace();
}
}

/**
* Component initialization.
*
* @throws java.lang.Exception
*/
private void jbInit() throws Exception {
contentPane = (JPanel) getContentPane();
contentPane.setLayout(borderLayout1);
dBTextDataBinder1.setJTextComponent(jTextArea1);
dBTextDataBinder1.setEnableFileLoading(false);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(new Dimension(400, 300));
setTitle("Text Edit");
this.addWindowListener(new TextEditFrame_this_windowAdapter(this));
statusBar.setText(" ");
jMenuFile.setText("File");
jMenuFileExit.setText("Exit");
jMenuFileExit.addActionListener(new
TextEditFrame_jMenuFileExit_ActionAdapter(this));
jMenuHelp.setText("Help");
jMenuHelpAbout.setText("About");
jMenuHelpAbout.addActionListener(new
TextEditFrame_jMenuHelpAbout_ActionAdapter(this));
jTextArea1.setLineWrap(true);
jTextArea1.setWrapStyleWord(true);
jMenuItem1.setText("New");
jMenuItem1.addActionListener(new TextEditFrame_jMenuItem1_actionAdapter(this));
jMenuItem2.setText("Open");
jMenuItem3.setText("Save");
jMenuItem3.addActionListener(new TextEditFrame_jMenuItem3_actionAdapter(this));
jMenuItem4.setText("Save As");
jMenuItem4.addActionListener(new TextEditFrame_jMenuItem4_actionAdapter(this));
jMenu1.setText("Edit");
jMenuItem5.addActionListener(new TextEditFrame_jMenuItem5_actionAdapter(this));
jMenuItem6.setText("Foreground Color");
jMenuItem6.addActionListener(new TextEditFrame_jMenuItem6_actionAdapter(this));
jMenuItem7.setText("Background Color");
jMenuItem7.addActionListener(new TextEditFrame_jMenuItem7_actionAdapter(this));
fontChooser1.setFrame(this);
fontChooser1.setTitle("Font");
jMenuItem5.setText("Font");
jMenuItem2.addActionListener(new TextEditFrame_jMenuItem2_actionAdapter(this));
jButton1.addActionListener(new TextEditFrame_jButton1_actionAdapter(this));
jButton2.addActionListener(new TextEditFrame_jButton2_actionAdapter(this));
jButton3.addActionListener(new TextEditFrame_jButton3_actionAdapter(this));
document1.addDocumentListener(new
TextEditFrame_document1_documentAdapter(this));
dBTextDataBinder1.setJTextComponent(jTextArea1);
dBTextDataBinder1.setEnableFileSaving(false);
jMenuBar1.add(jMenuFile);
jMenuBar1.add(jMenu1);
jMenuFile.add(jMenuItem1);
jMenuFile.add(jMenuItem2);
jMenuFile.add(jMenuItem3);
jMenuFile.add(jMenuItem4);
jMenuFile.addSeparator();
jMenuFile.add(jMenuFileExit);
jMenuBar1.add(jMenuHelp);
jMenuHelp.add(jMenuHelpAbout);
setJMenuBar(jMenuBar1);
jButton1.setIcon(image1);
jButton1.setToolTipText("Open File");
jButton2.setIcon(image2);
jButton2.setToolTipText("Save File");
jButton3.setIcon(image3);
jButton3.setToolTipText("About");
jToolBar.add(jButton1);
jToolBar.add(jButton2);
jToolBar.add(jButton3);
jMenu1.add(jMenuItem5);
jMenu1.add(jMenuItem6);
jMenu1.add(jMenuItem7);
contentPane.add(statusBar, java.awt.BorderLayout.SOUTH);
contentPane.add(jToolBar, java.awt.BorderLayout.NORTH);
contentPane.add(jScrollPane1, java.awt.BorderLayout.CENTER);
jScrollPane1.getViewport().add(jTextArea1);
}

/**
* File | Exit action performed.
*
* @param actionEvent ActionEvent
*/
void jMenuFileExit_actionPerformed(ActionEvent actionEvent) {
if (okToAbandon()) {
System.exit(0);
}
}

/**
* Help | About action performed.
*
* @param actionEvent ActionEvent
*/
void jMenuHelpAbout_actionPerformed(ActionEvent actionEvent) {
helpAbout();
}

private void helpAbout() {
TextEditFrame_AboutBox dlg = new TextEditFrame_AboutBox(this);
Dimension dlgSize = dlg.getPreferredSize();
Dimension frmSize = getSize();
Point loc = getLocation();
dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x,
(frmSize.height - dlgSize.height) / 2 + loc.y);
dlg.setModal(true);
dlg.pack();
dlg.show();
}

public void jMenuItem5_actionPerformed(ActionEvent e) {

fontChooser1.setSelectedFont(jTextArea1.getFont());
if (fontChooser1.showDialog()) {
jTextArea1.setFont(fontChooser1.getSelectedFont());
}
}

public void jMenuItem6_actionPerformed(ActionEvent e) {
Color color = javax.swing.JColorChooser.showDialog(this,
"Foreground Color", jTextArea1.getForeground());
if (color != null) {
jTextArea1.setForeground(color);
}
}

public void jMenuItem7_actionPerformed(ActionEvent e) {
Color color = javax.swing.JColorChooser.showDialog(this,
"Background Color", jTextArea1.getForeground());
if (color != null) {
jTextArea1.setBackground(color);
}
}

public void jMenuItem1_actionPerformed(ActionEvent e) {
if (okToAbandon()) {
jTextArea1.setText("");
currFileName = null;
dirty = false;
updateCaption();
}
}

public void jMenuItem2_actionPerformed(ActionEvent e) {
fileOpen();
}

private void fileOpen() throws HeadlessException {
if (!okToAbandon()) {
return;
}

if (JFileChooser.APPROVE_OPTION == jFileChooser1.showOpenDialog(this)) {
openfile(jFileChooser1.getSelectedFile().getPath());
this.repaint();
}
}
void openfile(String fileName) {
try {
File file = new File(fileName);
int size = (int) file.length();
int char_read = 0;
FileReader in = new FileReader(file);
char[] data = new char[size];
while (in.ready()) {
char_read += in.read(data, char_read, size - char_read);
}
in.close();
jTextArea1.setText(new String(data, 0, char_read));
this.currFileName = fileName;
this.dirty = false;
statusBar.setText("Opend " + fileName);
updateCaption();
} catch (IOException e) {
statusBar.setText("Error opening " + fileName);
}
}

boolean saveFile() {
if (currFileName == null) {
return saveAsFile();
}
try {
File file = new File(currFileName);
FileWriter out = new FileWriter(file);
String text = jTextArea1.getText();
out.write(text);
out.close();
this.dirty = false;
statusBar.setText("Saved to " + currFileName);
updateCaption();
return true;
} catch (IOException e) {
statusBar.setText("Error saving " + currFileName);
}
return false;
}

boolean saveAsFile() {
if (jFileChooser1.APPROVE_OPTION == jFileChooser1.showSaveDialog(this)) {
currFileName = jFileChooser1.getSelectedFile().getPath();
this.repaint();
return saveFile();
} else {
this.repaint();
return false;
}
}

public void jMenuItem3_actionPerformed(ActionEvent e) {
saveFile();
}

public void jMenuItem4_actionPerformed(ActionEvent e) {
saveAsFile();
}

boolean okToAbandon() {
if (!dirty) {
return true;
}
int value = JOptionPane.showConfirmDialog(this, "Save changes?",
"Text Edit",
JOptionPane.
YES_NO_CANCEL_OPTION);
switch (value) {
case JOptionPane.YES_OPTION:
return saveFile();
case JOptionPane.NO_OPTION:
return true;
default:
return false;
}
}

public void jButton1_actionPerformed(ActionEvent e) {
fileOpen();
}

public void jButton2_actionPerformed(ActionEvent e) {
saveFile();
}

public void jButton3_actionPerformed(ActionEvent e) {
helpAbout();
}

public void document1_changedUpdate(DocumentEvent e) {
dirty=true;
updateCaption();
}

public void document1_insertUpdate(DocumentEvent e) {
dirty=true;
updateCaption();
}

public void document1_removeUpdate(DocumentEvent e) {
dirty=true;

updateCaption();}
void updateCaption()
{
String caption;
if(currFileName==null)
{
caption="Untitled";
}
else
{
caption=currFileName;
}
if(dirty)
{
caption="*"+caption;
}
caption="Text Editor - "+caption;
this.setTitle(caption);
}

public void this_windowClosing(WindowEvent e) {
okToAbandon();
}

}
class TextEditFrame_this_windowAdapter extends WindowAdapter {
private TextEditFrame adaptee;
TextEditFrame_this_windowAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void windowClosing(WindowEvent e) {

adaptee.this_windowClosing(e);
}
}
class TextEditFrame_document1_documentAdapter implements DocumentListener {
private TextEditFrame adaptee;
TextEditFrame_document1_documentAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void insertUpdate(DocumentEvent e) {
adaptee.document1_insertUpdate(e);
}

public void removeUpdate(DocumentEvent e) {
adaptee.document1_removeUpdate(e);
}

public void changedUpdate(DocumentEvent e) {
adaptee.document1_changedUpdate(e);
}
}
class TextEditFrame_jButton3_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jButton3_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jButton3_actionPerformed(e);
}
}
class TextEditFrame_jButton2_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jButton2_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jButton2_actionPerformed(e);
}
}
class TextEditFrame_jButton1_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jButton1_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jButton1_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem3_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem3_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem3_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem4_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem4_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem4_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem2_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem2_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem2_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem7_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem7_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem7_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem1_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem1_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem1_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem5_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem5_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem5_actionPerformed(e);
}
}
class TextEditFrame_jMenuItem6_actionAdapter implements ActionListener {
private TextEditFrame adaptee;
TextEditFrame_jMenuItem6_actionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jMenuItem6_actionPerformed(e);
}
}
class TextEditFrame_jMenuFileExit_ActionAdapter implements ActionListener {
TextEditFrame adaptee;

TextEditFrame_jMenuFileExit_ActionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent actionEvent) {
adaptee.jMenuFileExit_actionPerformed(actionEvent);
}
}
class TextEditFrame_jMenuHelpAbout_ActionAdapter implements ActionListener {
TextEditFrame adaptee;

TextEditFrame_jMenuHelpAbout_ActionAdapter(TextEditFrame adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent actionEvent) {
adaptee.jMenuHelpAbout_actionPerformed(actionEvent);
}
}
[/code]

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