urcheckboxlistener.java

ErGo是一个很早的Java通用围棋服务器(IGS/NNGS)客户端程序。有全部源码和文档

package ergo.ui;

// $Id: urCheckboxListener.java,v 1.2 1999/08/13 01:20:11 sigue Exp $

/*
 *  Copyright (C) 1999  Carl L. Gay and Antranig M. Basman.
 *  See the file copyright.txt, distributed with this software,
 *  for further information.
 */

import java.awt.CheckboxMenuItem;
import java.awt.Menu;
import java.awt.event.ItemListener;

abstract class urCheckboxListener implements ItemListener {

  public CheckboxMenuItem generate (Menu owner, String label) {
    CheckboxMenuItem togo = new CheckboxMenuItem(label);
    togo.addItemListener(this);
    if (owner != null)
      owner.add(togo);
    return togo;
  }

  public CheckboxMenuItem generateWithSep (Menu owner, String label) {
    return generateWithSep(owner, label, false);
  }

  public CheckboxMenuItem generateWithSep (Menu owner, String label,
					   boolean above) {
    if (above)
      owner.addSeparator();
    CheckboxMenuItem togo = generate(owner, label);
    if (!above)
      owner.addSeparator();
    return togo;
  }
}