Java实现不规则窗体,透明窗体,JDK1.6新特性

import com.sun.awt.AWTUtilities; import java.awt.EventQueue; import java.awt.Point; import java.awt.Rectangle; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import javax.swing.GroupLayout; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; public class MainFrame extends JFrame { private static final long serialVersionUID = 1L; private MouseAdapter moveWindowListener = new MouseAdapter() { private Point lastPoint; public void mousePressed(MouseEvent e) { this.lastPoint = e.getLocationOnScreen(); } public void mouseDragged(MouseEvent e) { Point point = e.getLocationOnScreen(); int offsetX = point.x - this.lastPoint.x; int offsetY = point.y - this.lastPoint.y; Rectangle bounds = MainFrame.this.getBounds(); bounds.x += offsetX; bounds.y += offsetY; MainFrame.this.setBounds(bounds); this.lastPoint = point; } }; BufferedImage img = null; private JLabel jLabel1; public MainFrame() { initComponents(); addMouseMotionListener(this.moveWindowListener); addMouseListener(this.moveWindowListener); } private void initComponents() { this.jLabel1 = new JLabel(); setDefaultCloseOperation(3); setUndecorated(true); this.jLabel1.setIcon(new ImageIcon(super.getClass().getResource("/about1.png"))); GroupLayout layout = new GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING).addComponent(this.jLabel1, -1, -1, 32767)); layout.setVerticalGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING).addComponent(this.jLabel1, GroupLayout.Alignment.TRAILING, -2, 576, 32767)); pack(); } public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { MainFrame mf = new MainFrame(); AWTUtilities.setWindowOpaque(mf, false); mf.setVisible(true); } }); } }