java實現控制元件的移動及使用滑鼠改變控制元件大小

package cn.com.test;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Label;
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.MouseListener;
import java.awt.event.MouseMotionAdapter;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.LineBorder;

public class testDrap {
static int xx , yy;
static Point p = new Point(0, 0);
static int w,h;
static boolean b = true;
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.getContentPane().setLayout(new FlowLayout());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JPanel panel = new JPanel();
panel.setLayout(new FlowLayout());
panel.setBorder(new LineBorder(Color.black));
panel.setPreferredSize(new Dimension(260,55));

frame.setBounds(100, 100, 450, 300);
final JLabel label = new JLabel(){
public void repaint() {
this.setLocation(p);
this.setSize(w,h);
super.repaint();
}
};
LineBorder border = new LineBorder(Color.black);
label.setBorder(border);
label.setForeground(Color.black);
label.setPreferredSize(new Dimension(50,30));
label.addMouseListener(new MouseListener() {
public void mouseReleased(MouseEvent arg0) {
b = false;
}
public void mousePressed(MouseEvent mouseEvent) {
xx = mouseEvent.getX();
yy = mouseEvent.getY();
w = label.getSize().width;
h = label.getSize().height;
b = true;
}
public void mouseExited(MouseEvent arg0) {
}
public void mouseEntered(MouseEvent e) {
if (label.getSize().width-8<=e.getX()) {
label.setCursor(new Cursor(Cursor.E_RESIZE_CURSOR));//右
} else if (8>=e.getX()) {
label.setCursor(new Cursor(Cursor.W_RESIZE_CURSOR));//左
} else {
label.setCursor(Cursor.getDefaultCursor());
}
}
public void mouseClicked(MouseEvent arg0) {
}
});
label.addMouseMotionListener(new MouseAdapter() {

public void mouseMoved(MouseEvent e) {
Cursor cursor = label.getCursor();
if (label.getSize().width-5<=e.getX()) {
label.setCursor(new Cursor(Cursor.E_RESIZE_CURSOR));//右
} else if (5>=e.getX()) {
label.setCursor(new Cursor(Cursor.W_RESIZE_CURSOR));//左
} else {
label.setCursor(Cursor.getDefaultCursor());
}
if (b) {
label.setCursor(cursor);
}
};
public void mouseDragged(MouseEvent e) {
p = label.getLocation();
if (label.getCursor().getType() == Cursor.W_RESIZE_CURSOR) {

Point point = label.getLocation();
p.x = e.getPoint().x + point.x - 0;
p.y = point.y;
label.setLocation(p);
w = label.getSize().width - e.getPoint().x;
h = label.getSize().height;
label.setSize(w,h);
} else if (label.getCursor().getType() == Cursor.E_RESIZE_CURSOR) {
w = e.getPoint().x;
h = label.getSize().height;
label.setSize(w,h);
label.setLocation(p);
} else {
Point point = label.getLocation();
////////////隨意移動
　　　　　　　　　　　 //p.x = e.getPoint().x + point.x - xx;
　　　　　　　　　　　 //p.y = e.getPoint().y + point.y - yy;
//label.setLocation(e.getPoint().x + point.x - xx,e.getPoint().y + point.y - yy);
　　　　　　　　　　　　////////////沿著X軸方向移動
p.x = e.getPoint().x + point.x - xx;
p.y = point.y;
label.setLocation(e.getPoint().x + point.x - xx,point.y); }
}
}
);
panel.add(label);
frame.add(panel);
JButton btn = new JButton(“確認”);
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
for (int i = 0; i < panel.getComponentCount(); i++) {
Component c = panel.getComponent(i);
System.out.println(c.getLocation().x);
}
}
});
frame.add(btn);
frame.setVisible(true);
}
}