source: josm/trunk/src/org/openstreetmap/josm/gui/layer/markerlayer/AudioMarker.java@ 554

// License: GPL. Copyright 2007 by Immanuel Scholz and others
package org.openstreetmap.josm.gui.layer.markerlayer;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.Graphics;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URL;

import javax.swing.Icon;
import javax.swing.JOptionPane;
import javax.swing.Timer;

import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.tools.AudioPlayer;
import org.openstreetmap.josm.data.gpx.WayPoint;
import org.openstreetmap.josm.data.coor.EastNorth;
import org.openstreetmap.josm.gui.MapView;

import org.openstreetmap.josm.tools.ImageProvider;

/**
 * Marker class with audio playback capability.
 * 
 * @author Frederik Ramm <frederik@remote.org>
 *
 */
public class AudioMarker extends ButtonMarker {

        private URL audioUrl;   
        private static AudioMarker recentlyPlayedMarker = null;
        public  double syncOffset;
        
        /**
         * Verifies the parameter whether a new AudioMarker can be created and return
         * one or return <code>null</code>.
         */
        public static AudioMarker create(LatLon ll, String text, String url, MarkerLayer parentLayer, double time, double offset) {
                try {
                        return new AudioMarker(ll, text, new URL(url), parentLayer, time, offset);
                } catch (Exception ex) {
                        return null;
                }
        }

        private AudioMarker(LatLon ll, String text, URL audioUrl, MarkerLayer parentLayer, double time, double offset) {
                super(ll, text, "speech.png", parentLayer, time, offset);
                this.audioUrl = audioUrl;
                this.syncOffset = 0.0;
        }

        @Override public void actionPerformed(ActionEvent ev) {
                play();
        }

        public static AudioMarker recentlyPlayedMarker() {
                return recentlyPlayedMarker;
        }
        
        public URL url() {
                return audioUrl;
        }
                
        /**
         * Starts playing the audio associated with the marker: used in response to pressing
         * the marker as well as indirectly 
         *
         */
        public void play() {
                try {
                        // first enable tracing the audio along the track
                        if (Main.pref.getBoolean("marker.traceaudio", true) && parentLayer != null) {
                                parentLayer.traceAudio();
                        }

                        AudioPlayer.play(audioUrl, offset + syncOffset);
                        recentlyPlayedMarker = this;
                } catch (Exception e) {
                        AudioPlayer.audioMalfunction(e);
                }
        }

        public void adjustOffset(double adjustment) {
                syncOffset = adjustment; // added to offset may turn out negative, but that's ok
        }

        public double syncOffset() {
                return syncOffset;
        }
        
        public static String inventName (double offset) {
                int wholeSeconds = (int)(offset + 0.5);
                if (wholeSeconds < 60)
                        return Integer.toString(wholeSeconds);
                else if (wholeSeconds < 3600)
                        return String.format("%d:%02d", wholeSeconds / 60, wholeSeconds % 60);
                else
                        return String.format("%d:%02d:%02d", wholeSeconds / 3600, (wholeSeconds % 3600)/60, wholeSeconds % 60);
        }
}