能贴边隐藏的窗体,类似QQ

package autoHiddenFrame; import java.awt.Container; import java.awt.MouseInfo; import java.awt.Point; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.WindowEvent; import java.awt.event.WindowFocusListener; import javax.swing.SwingUtilities; import javax.swing.Timer; public class WindowMouseListener extends MouseAdapter implements ActionListener ,WindowFocusListener { private Timer timer; private AutoHiddenFrame frame; Container container; public WindowMouseListener(AutoHiddenFrame a) { frame = a; container = frame.getContentPane(); container.addMouseListener(this); //注册鼠标侦听器到ContentPane上,因为我们可以加大它的Insets以提高鼠标进入和离开的灵敏度 frame.addWindowFocusListener(this); //注册一个焦点侦听器到窗体上 timer = new Timer(2000, this); timer.setRepeats(false); } public void mouseEntered(MouseEvent e) { //当鼠标进入,就显示窗体 if (frame.getStates() == AutoHiddenFrame.HIDDEN) { frame.moveToVisible(); }else { frame.clearInfo(); } } public void mouseExited(MouseEvent e) { //当鼠标离开,启动计时器 if (frame.getStates() == AutoHiddenFrame.CANHIDD) { if (!container.contains(e.getPoint())) { frame.showInfo(timer.getDelay()/1000+"秒后自动隐藏窗口!"); //System.out.println("Mouse has exited the Dialog!"); timer.restart(); } } } public void actionPerformed(ActionEvent e) { //计时器到期,检查鼠标是不是还在此窗体里面,不再的话,再开始隐藏 Point p = MouseInfo.getPointerInfo().getLocation(); SwingUtilities.convertPointFromScreen(p, container); if (!container.contains(p) && frame.getStates() == AutoHiddenFrame.CANHIDD) { frame.moveToHidden(); }else { frame.clearInfo(); } } public void windowGainedFocus(WindowEvent e) { //得到焦点检查鼠标是不是在窗体上 Point p = MouseInfo.getPointerInfo().getLocation(); SwingUtilities.convertPointFromScreen(p, container); if (container.contains(p) && frame.getStates() == AutoHiddenFrame.HIDDEN) { frame.moveToVisible(); } } public void windowLostFocus(WindowEvent e) { //失去焦点,启动计时器 if(frame.getStates() == AutoHiddenFrame.CANHIDD) { frame.showInfo("2秒后自动隐藏窗口!"); timer.restart(); } } }