java SWT /JFace窗口，剧中

package com.ruifeng.swt.core;

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

/**
* 布局UTIL
*
* @author lpdx111
*
*/
public class LayoutUtil {
    /**
     * Shell 布局，居中
     *
     * @param display
     * @param shell
     */
    public static void centerShell(Display display, Shell shell) {
        Rectangle displayBounds = display.getPrimaryMonitor().getBounds();
        Rectangle shellBounds = shell.getBounds();
        int x = displayBounds.x + (displayBounds.width - shellBounds.width) >> 1;
        int y = displayBounds.y + (displayBounds.height - shellBounds.height) >> 1;
        shell.setLocation(x, y);
    }

    public static void centerShell(Shell shell) {
        Rectangle displayBounds = shell.getDisplay().getPrimaryMonitor()
                .getBounds();
        Rectangle shellBounds = shell.getBounds();
        int x = displayBounds.x + (displayBounds.width - shellBounds.width) >> 1;
        int y = displayBounds.y + (displayBounds.height - shellBounds.height) >> 1;
        shell.setLocation(x, y);
    }

    /**
     * jface dialog 根据窗口大小，获得居中的Point
     *
     * @param initialSize
     * @return
     */
    public static Point getLocation(Point initialSize) {
        Rectangle displayBounds = Display.getCurrent().getPrimaryMonitor()
                .getBounds();
        int x = displayBounds.x + (displayBounds.width - initialSize.x) >> 1;
        int y = displayBounds.y + (displayBounds.height - initialSize.y) >> 1;
        return new Point(x, y);
    }

}


摘自 lpdx111的专栏