3、TextEditFrame_AboutBox.java的源程序代码：
package texteditor;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
/**
* ＜p＞Title： TextEditor＜/p＞
* ＜p＞Description： This is a study programme＜/p＞
* ＜p＞Copyright： Copyright (c) 2004＜/p＞
* ＜p＞Company： ghq＜/p＞
* @author ghq
* @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 imageControl1 = new JLabel();
ImageIcon imageIcon;
JLabel label1 = new JLabel();
JLabel label2 = new JLabel();
JLabel label3 = new JLabel();
JLabel label4 = new JLabel();
BorderLayout borderLayout1 = new BorderLayout();
BorderLayout borderLayout2 = new BorderLayout();
FlowLayout flowLayout1 = new FlowLayout();
FlowLayout flowLayout2 = new FlowLayout();
GridLayout gridLayout1 = new GridLayout();
String product = "TextEditor";
String version = "1.0";
String copyright = "Copyright (c) 2002";
String comments = "This is a study programme";
//Construct the frame
public TextEditFrame_AboutBox(Frame parent) {
super(parent);
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
try {
jbInit();
}
catch(Exception e) {
e.printStackTrace();
}
pack();
}
//Component initialization
private void jbInit() throws Exception {
//imageLabel.setIcon(new ImageIcon(TextEditFrame_AboutBox.class.getResource("[Your Image]")));
this.setTitle("About");
setResizable(false);
panel1.setLayout(borderLayout1);
panel2.setLayout(borderLayout2);
insetsPanel1.setLayout(flowLayout1);
insetsPanel2.setLayout(flowLayout1);
insetsPanel2.setBorder(new EmptyBorder(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(new EmptyBorder(10, 60, 10, 10));
button1.setText("Ok");
button1.addActionListener(this);
insetsPanel2.add(imageControl1, null);
panel2.add(insetsPanel2, BorderLayout.WEST);
this.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);
}
//Overridden so we can exit when windows is cancel
protected void processWindowEvent(WindowEvent e) {
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
cancel();
}
super.processWindowEvent(e);
}
void cancel() {
dispose();
}
// Help|About de button is used action performed
public void actionPerformed(ActionEvent e) {
if (e.getSource() == button1) {
cancel();
}
}
} |
说明：上面的这段程序主要是构建Help菜单的AboutBox 对话框，显示product、version 和comments 等内容。
至此我们已完成文本编辑器所有的菜单及代码设计等工作，在 jbuilder9 环境下编译运行会出现如下的Text Editor窗口：
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