字幕表示の制御

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.util.EventObject;
 
import javax.media.Manager;
import javax.media.Player;
import javax.tv.xlet.Xlet;
import javax.tv.xlet.XletContext;
 
import org.bluray.media.SubtitlingControl;
import org.bluray.net.BDLocator;
import org.davic.media.MediaLocator;
import org.dvb.media.SubtitleAvailableEvent;
import org.dvb.media.SubtitleListener;
import org.havi.ui.HScene;
import org.havi.ui.HSceneFactory;
import org.havi.ui.HScreen;
 
public class Main implements Xlet, SubtitleListener {
    Graphics g = null;
    int x=100, y=100;
    SubtitlingControl sc = null;
    public void initXlet(XletContext xc){
        try {
            HScene hs= HSceneFactory.getInstance().getFullScreenScene(
                    HScreen.getDefaultHScreen().getDefaultHGraphicsDevice());
            hs.setFont(new Font(null, java.awt.Font.BOLD, 48));
            hs.setVisible(true);
 
            g = hs.getGraphics();
            g.setColor(Color.white);
 
            Player player = Manager.createPlayer(new MediaLocator(new BDLocator("bd://1.PLAYLIST:00000")));
            sc = (SubtitlingControl)player.getControl("org.bluray.media.SubtitlingControl");
            sc.addSubtitleListener(this);
            player.start();
        } catch (Exception e){
        }
    }
    public void startXlet(){}
    public void pauseXlet(){    }
    public void destroyXlet(boolean unconditional){ }
 
    public void subtitleStatusChanged(EventObject arg0) {
		// 字幕が使用可能になるのを待つ
        if( arg0 instanceof SubtitleAvailableEvent ){
            g.drawString("Subtitle is available", x, y); y+=50;
            // 選択可能な字幕を取得
            String[] ss  = sc.listAvailableLanguages();
            for( int i = 0; i < ss.length; i++ ){
                g.drawString(i+": "+ss[i], x, y ); y+=50;
            }
            try {
                // 英語の字幕に切り替え
                sc.selectLanguage("eng");
            } catch (Throwable th) {
                g.drawString("err:"+th.toString(), x, y); y+=50;
            }
            // 字幕表示ONに切り替え
            sc.setSubtitling(true);
        }
    }