java – 点击JPanel移动未装饰的窗口

public class MotionPanel extends JPanel{
    private Point initialClick;
    private JFrame parent;

    public MotionPanel(final JFrame parent){
    this.parent = parent;

    addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent e) {
            initialClick = e.getPoint();
            getComponentAt(initialClick);
        }
    });

    addMouseMotionListener(new MouseMotionAdapter() {
        @Override
        public void mouseDragged(MouseEvent e) {

            // get location of Window
            int thisX = parent.getLocation().x;
            int thisY = parent.getLocation().y;

            // Determine how much the mouse moved since the initial click
            int xMoved = (thisX + e.getX()) - (thisX + initialClick.x);
            int yMoved = (thisY + e.getY()) - (thisY + initialClick.y);

            // Move window to this position
            int X = thisX + xMoved;
            int Y = thisY + yMoved;
            parent.setLocation(X,Y);
        }
    });
    }
}

我一直在使用这段代码一段时间,为未装饰的窗口创建一个自定义标题栏.P.S.：您可以通过扩展JComponent而不是JPanel来推广此示例.