📄 aboutbox.java
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package com.jimw.mysqlplus;import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;import java.io.*;public class 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(); HotHrefLabel label5 = new HotHrefLabel("Please send your comments and suggestions to me"); BorderLayout borderLayout1 = new BorderLayout(); BorderLayout borderLayout2 = new BorderLayout(); FlowLayout flowLayout1 = new FlowLayout(); GridLayout gridLayout1 = new GridLayout(); String product = "SqlPlus"; String version = "1.0"; String copyright = "Copyright (c) 2002 by jimw"; String comments = "<html><font color = red>This is a pure java database application.</font></html>"; public AboutBox(JFrame 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("./resources/java.gif")); this.setTitle("About"); setResizable(false); panel1.setLayout(borderLayout1); panel2.setLayout(borderLayout2); insetsPanel1.setLayout(flowLayout1); insetsPanel2.setLayout(flowLayout1); insetsPanel2.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); gridLayout1.setRows(5); 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); this.getContentPane().add(panel1, null); insetsPanel3.add(label1, null); insetsPanel3.add(label2, null); insetsPanel3.add(label3, null); insetsPanel3.add(label4, null); insetsPanel3.add(label5, 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 window is closed*/ protected void processWindowEvent(WindowEvent e) { if (e.getID() == WindowEvent.WINDOW_CLOSING) { cancel(); } super.processWindowEvent(e); } /**Close the dialog*/ void cancel() { dispose(); } /**Close the dialog on a button event*/ public void actionPerformed(ActionEvent e) { if (e.getSource() == button1) { cancel(); } }}class HotHrefLabel extends JLabel implements MouseListener{ String text,hotText; public HotHrefLabel(String text) { super(text); this.text = text; addMouseListener(this); hotText = "<html><font color = blue>" + text + "</font></html>"; this.setToolTipText("Your feedback is important to me! mailto:tony_ww@msn.com"); } public void mouseClicked(MouseEvent e) { try {// Runtime.getRuntime().exec("explorer http://www.sohu.com"); //怎么样才能调出发送邮件的程序呢? Runtime.getRuntime().exec("mailto:tony_ww@msn.com"); } catch (IOException e1) {} } public void mouseEntered(MouseEvent e) { //怎么才能在MOUSE进入时,将Cursor改变HAND_CURSOR状态 //setCursor(Cursor.HAND_CURSOR); setText(hotText); } public void mouseExited(MouseEvent e) { setText(text); } public void mouseReleased(MouseEvent e) {} public void mousePressed(MouseEvent e) {}}⌨️ 快捷键说明
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