screenroutediscovery.java

使用J2ME MIDP2.0實做AODV協定(RFC3561),測試平台為兩種PDA:PalmOS和PacketPC2003

package qosaodv.gui;

import qosaodv.*;
import qosaodv.net.*;
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import java.util.*;
import java.io.*;


/*
*
*  Screen - 陪ボ Route Discovery List 戈癟
*
*/
public class ScreenRouteDiscovery implements CommandListener, ScreenInterface {
    private Display display;
	GuiManager guiMgr;
	public List list;
    private String title= "";

    private Command cmdUpdateStart = new Command("Start update", Command.ITEM, 1);	
    private Command cmdUpdateStop = new Command("Stop update", Command.ITEM, 1);
    private Command cmdBack = new Command("Back", Command.EXIT, 1);

    public ScreenRouteDiscovery(GuiManager guiMgr2, Display display2) {
		guiMgr= guiMgr2;
        display = display2;
		list= new List("Route Discovery List", Choice.IMPLICIT);

        list.addCommand(cmdBack);
        list.setCommandListener(this);

        updateTitle();
    }

	public void updateDiscoveryCount(int count)
	{        
		title= "Route Disc. Count= " + count;
		updateTitle();
	}

    private void updateTitle() {
        String str;
        if( guiMgr.getUpdate() )
            str= "[Updating...] " + title;
        else
            str= "[No Update] " + title;

		if(list.size()!=0)
			list.set(0, str , null);
		else
			list.append(str , null);
    }

	public void show()
	{
        display.setCurrent(list);
	}


	public void setUpdate(boolean update)
	{
		if(update){
			list.addCommand(cmdUpdateStop);
			list.removeCommand(cmdUpdateStart);
		}else {
			list.addCommand(cmdUpdateStart);
			list.removeCommand(cmdUpdateStop);
		}
        updateTitle(); 
	}

    public void commandAction(Command c, Displayable s) {
        if (c == cmdBack) {
			guiMgr.showScrMain();
		}else if(c == cmdUpdateStart) {
			guiMgr.setUpdate(true);
		}else if(c == cmdUpdateStop) {
			guiMgr.setUpdate(false);
        } /*else if (c == list.SELECT_COMMAND) {
			System.out.println("1");

		}*/
	}
}