自定义按住按钮拖动窗体

因为做窗体用的是matisse的插件，所有给出关键性的代码

窗体名jm，按住jlabel1拖动

this.setLocationRelativeTo(null);
		jLabel1.addMouseListener(new MouseAdapter() {
			@Override
			public void mousePressed(MouseEvent e) {

				x = e.getX();
				y = e.getY();
}
		});

jLabel1.addMouseMotionListener(new MouseMotionAdapter() {
			@Override
			public void mouseDragged(MouseEvent e) {
				// TODO Auto-generated method stub
				jm.setLocation(e.getX() + jm.getX() - x, e.getY() + jm.getY()
						- y);
			}
		});