JFrame实现窗体在屏幕边缘靠边隐藏

用JAVA swing做一个项目，类似QQ实现靠边隐藏的代码记录如下：

package com.szboc.ui;

import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;

import javax.swing.JFrame;
import javax.swing.Timer;

/**
* 实现窗体靠显示器边隐藏的类
* 窗体在屏幕边缘隐藏
* @author formssi
*
*/
public class MyJFrame implements ActionListener
{
private Rectangle rect;
private int left;
private int right;
private int screenXX;
private int top;
private int width;
private int height;
private Point point;
private Timer timer = new Timer(10,this);
private int xx,yy;
private boolean isDraging = false;

// private JFrame jFrame = new JFrame();
private JFrame jFrame;

public MyJFrame(JFrame jFrame)
{
super();
this.jFrame = jFrame;
timer.start();
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setAlwaysOnTop(true);
jFrame.setVisible(true);
moveFrame();
}

    private void moveFrame()
    {
        jFrame.addMouseListener(new MouseAdapter()
        {
        @Override
        public void mousePressed(MouseEvent e)
        {
        isDraging = true;
        xx = e.getX();
        yy = e.getY();
       
        }
       
        @Override
        public void mouseReleased(MouseEvent e)
        {
        isDraging = false;
        }
});
       
        jFrame.addMouseMotionListener(new MouseMotionAdapter() {
        @Override
        public void mouseDragged(MouseEvent e) {
        if(isDraging)
        {
        int left = jFrame.getLocation().x;
        int top = jFrame.getLocation().y;
        jFrame.setLocation(left + e.getX() - xx, top + e.getY() - yy);
        jFrame.repaint();
        }
        }
});
}

@Override
    public void actionPerformed(ActionEvent e)
    {
        left = jFrame.getLocationOnScreen().x;
        top = jFrame.getLocationOnScreen().y;
        width = jFrame.getWidth();
        height = jFrame.getHeight();
        screenXX = java.awt.Toolkit.getDefaultToolkit().getScreenSize().width;
        right = screenXX - left - width;
       
        rect = new Rectangle(0,0,width,height);
       
        point = jFrame.getMousePosition();
       
        if(left < 0 && isPtlnRect(rect,point))
        {
        jFrame.setLocation(0, top);
        }
        else if(left > -5 && left < 5 && !(isPtlnRect(rect,point)))
        {
        jFrame.setLocation(left - width + 1, top);
        }
        else if(top < 0 && left < 0 && isPtlnRect(rect,point))
        {
        jFrame.setLocation(0, 0);
        }
        else if((top > -5 && top < 5) && (left >-5 && left < 5)
        && !(isPtlnRect(rect,point)))
        {
        jFrame.setLocation(left - width + 1, 1);
        }
        else if((top < 0) && isPtlnRect(rect,point))
        {
        jFrame.setLocation(left, 0);
        }
        else if(top > -5 && top < 5 && !(isPtlnRect(rect,point)))
        {
        jFrame.setLocation(left, 1 - height);
        }
        else if(right < 0 && isPtlnRect(rect,point))
        {
        jFrame.setLocation(screenXX - width + 1, top);
        }
        else if(right > -5 && right < 5 && !(isPtlnRect(rect,point)))
        {
        jFrame.setLocation(screenXX - 1, top);
        }
        else if(right < 0 && top < 0  && isPtlnRect(rect,point))
        {
        jFrame.setLocation(screenXX - width + 1, 0);
        }
        else if((right > -5 && right < 5) && (top > -5 && top < 5)
        && !(isPtlnRect(rect,point)))
        {
        jFrame.setLocation(screenXX - 1, 1);
        }
    }

private boolean isPtlnRect(Rectangle rect2, Point point2)
{
if(rect != null )
{
int x0 = rect.x;
int y0 = rect.y;
int x1 = rect.width;
int y1 = rect.height;
int x = 1024;
int y = 768;

if(point2 != null)
{
x = point2.x;
y = point2.y;
}

return x >= x0 && x < x1 && y >= y0 && y < y1;
}
return false;
}

}