如何将SWT对象绑定到应用程序窗口的中心？

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class CenterSWTObject {
    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);

        // 设置窗口的标题和大小
        shell.setText("My Application");
        shell.setSize(400, 300);

        // 获取屏幕的尺寸
        Rectangle screenBounds = display.getBounds();
        int screenWidth = screenBounds.width;
        int screenHeight = screenBounds.height;

        // 获取SWT对象的尺寸
        int objectWidth = 200;
        int objectHeight = 150;

        // 计算居中位置
        int x = (screenWidth - objectWidth) / 2;
        int y = (screenHeight - objectHeight) / 2;

        // 设置SWT对象的位置
        shell.setLocation(x, y);

        // 显示窗口
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();
    }
}