aboutdialog.java

ICQ聊天程序

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

public class AboutDialog
    extends JDialog
    implements ActionListener {
  private JPanel panel1 = new JPanel();
  private JPanel panel2 = new JPanel();
  private JPanel insetsPanel1 = new JPanel();
  private JPanel insetsPanel2 = new JPanel();
  private JPanel insetsPanel3 = new JPanel();
  private JButton exitButton = new JButton();
  private JLabel imageLabel = new JLabel("", SwingConstants.CENTER);
  private JLabel authorLabel = new JLabel();
  private JLabel softwareNameLabel = new JLabel();
  private JLabel programLabel = new JLabel();
  private JLabel grade = new JLabel();
  private ImageIcon copyrightImage = new ImageIcon();
  private GridLayout gridLayout = new GridLayout(5, 1);
  private JLabel dateOfPro = new JLabel();
  int    		ScreenWidth,ScreenHeight; 	
  
  public AboutDialog() {
    setTitle("JDialog Test");
    init(); 
    setResizable(true);
    pack();
    ScreenWidth  = getToolkit().getScreenSize().width;//将窗口置于屏幕中央,宽度与高度皆为屏幕一半
    ScreenHeight = getToolkit().getScreenSize().height;
    setLocation((ScreenWidth - getWidth()) / 2,(ScreenHeight - getHeight()) / 2);
    show();
  }
  public static void main(String args[])			  //测试函数
    {
         new AboutDialog();
    }

  private void init() {
    setTitle("关于作者");
    copyrightImage = new ImageIcon(AboutDialog.class.getResource("images\\hand.png"));
    imageLabel.setIcon(copyrightImage);

    panel1.setLayout(new BorderLayout());
    panel2.setLayout(new BorderLayout());
    insetsPanel1.setLayout(new FlowLayout());
    insetsPanel2.setLayout(new FlowLayout());
    insetsPanel3.setLayout(gridLayout);
    
    softwareNameLabel.setText("   计算机网络课程设计");
    softwareNameLabel.setToolTipText("Java  语言");
    softwareNameLabel.setFont(new Font("Monospaced", Font.PLAIN, 15));
    
    programLabel.setText("   ----简单ICQ聊天程序");
    programLabel.setToolTipText("ICQ聊天程序");
    programLabel.setFont(new Font("Monospaced", Font.PLAIN, 15));

    grade.setText("   05软件学院软件工程（9）班 ");
    grade.setToolTipText("班级");
    grade.setFont(new Font("Monospaced", Font.PLAIN, 15));
    
    authorLabel.setText("   龙全永（200530690914） ");
    authorLabel.setToolTipText("编写人");
    authorLabel.setFont(new Font("Monospaced", Font.PLAIN, 15));

    dateOfPro.setToolTipText("编写时间");
    dateOfPro.setText("   2008/2/16");
    dateOfPro.setFont(new Font("Monospaced", Font.PLAIN, 15));
    
    exitButton.setText("退出");
    exitButton.setFont(new Font("Monospaced", Font.BOLD, 15));
    exitButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
    exitButton.addActionListener(this);

    insetsPanel2.add(imageLabel, null);
    panel2.add(insetsPanel2, BorderLayout.WEST);

    insetsPanel3.add(softwareNameLabel, null);
    insetsPanel3.add(programLabel, null);
    insetsPanel3.add(grade, null);
    insetsPanel3.add(authorLabel, null);
    insetsPanel3.add(dateOfPro, null);
    panel2.add(insetsPanel3, BorderLayout.CENTER);

    insetsPanel1.add(exitButton, null);
    panel1.add(insetsPanel1, BorderLayout.SOUTH);
    panel1.add(panel2, BorderLayout.NORTH);

    getContentPane().add(panel1, null);
  }

  public Dimension getPreferredSize() {
    return new Dimension(300, 200);
  }

//  public void processWindowEvent(WindowEvent e) {
//    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
//      dispose();
//    }
//    super.processWindowEvent(e);
//  }

  public void actionPerformed(ActionEvent e) {
    if (e.getSource() == exitButton) {
      dispose();
    }
  }
}