menucommand.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: MenuCommand.java,v 1.5 1999/08/29 02:42:24 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.MenuItem;
import java.awt.MenuShortcut;
import java.awt.event.ActionListener;

/** The MenuCommand class represents Command objects that will be invoked
 *  via a menu.  Adds itself as an ActionListener since a Command is an
 *  ActionListener.  The intention is that there will be a (usually 
 *  anonymous) subclass of MenuCommand for each command.  Each such
 *  subclass must implement the execute() method, which will be called
 *  when the menu item is selected.
 */
public abstract class MenuCommand extends MenuItem implements Command, ActionListener {

  protected MenuCommand () {} // disable default constructor

  public MenuCommand (String name, MenuShortcut shortcut) {
    super(name, shortcut);
    addActionListener(this);
  }

  public MenuCommand (String name) {
    super(name);
    addActionListener(this);
  }

  public void actionPerformed (java.awt.event.ActionEvent event) {
    executeCommand(event);
  }

  public String getName () {
    return getLabel();
  }

  public void setName (String name) {
    setLabel(name);
  }

  // setEnabled is already implemented by MenuItem.
  // public void setEnabled (boolean enabled);
    
} // end class MenuCommand