menu.java

這程式是用J2ME撰寫而成

/*
wiseremote - a client/server remote control system for wireless devices
Copyright (C) 2005 Martin Profittlich

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

import javax.microedition.lcdui.*;
import java.util.Vector;

class Menu extends FixedList implements CommandListener
{
  Vector entry;
  Menu parent;
  //Command backCmd;

  public Menu (Menu p, String title)
    {
      super (title);
      entry = new Vector ();
      parent = p;


      //Command cmd = new Command ("BackS", Command.SCREEN, 1);
      //setSelectCommand (cmd);

      Command backCmd = new Command ("Back", Command.BACK, 1);
      setBackCommand (backCmd);
      
      setCommandListener (this);
    }

  public void addEntry (MenuEntry e)
    {
      Command backCmd = new Command ("Select", Command.SCREEN, 1);
      resetSelectCommand (backCmd);
      entry.addElement (e);
      append (e.label, null);
    }

  public void commandAction (Command c, Displayable d)
    {
      //addEntry ("Selected " + new Integer (getSelectedIndex ()).toString ());
      if (c.getLabel () == "Select" && getSelectedIndex () >= 0)
        {
          MenuEntry e = (MenuEntry)entry.elementAt (getSelectedIndex ());
          e.exec ();
        }
      if (c.getLabel () == "Back" || c.getLabel () == "BackS")
        {
          if (parent != null)
            {
              WiseremoteMIDlet.instance.display.setCurrent (parent);
            }
          else
            {
              WiseremoteMIDlet.instance.protocol.exec ("BACK");
            }
        }
    }
}