content: ///**
  //* Copyright 2004-2006 DFKI GmbH.
  //* All Rights Reserved.  Use is subject to license terms.
  //*
  //* This file is part of MARY TTS.
  //*
  //* MARY TTS is free software: you can redistribute it and/or modify
  //* it under the terms of the GNU Lesser General Public License as published by
  //* the Free Software Foundation, version 3 of the License.
  //*
  //* 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 Lesser General Public License for more details.
  //*
  //* You should have received a copy of the GNU Lesser General Public License
  //* along with this program.  If not, see <http://www.gnu.org/licenses/>.
  //*
  //*/
  //package marytts.signalproc.display;
  //
  //import java.awt.event.ActionEvent;
  //import java.io.File;
  //import java.util.Timer;
  //import java.util.TimerTask;
  //
  //import lib.sound.sampled.AudioFormat;
  //import lib.sound.sampled.AudioInputStream;
  //import lib.sound.sampled.AudioSystem;
  //import lib.sound.sampled.Clip;
  //import lib.sound.sampled.DataLine;
  //import javax.swing.AbstractAction;
  //import javax.swing.KeyStroke;
  //
  //import marytts.util.data.BufferedDoubleDataSource;
  //import marytts.util.data.audio.DDSAudioInputStream;
  //import marytts.util.data.audio.MaryAudioUtils;
  //
  //
  ///**
  //*
  //* @author Marc Schr&ouml;der
  //*
  //* Displays a zoomable and playable signal graph
  //*
  //*/
  //public class SignalGraph extends FunctionGraph
  //{
  //    public SignalGraph(AudioInputStream ais)
  //    {
  //        this(ais, DEFAULT_WIDTH, DEFAULT_HEIGHT);
  //    }
  //
  //    public SignalGraph(AudioInputStream ais, int width, int height)
  //    {
  //        super();
  //        if (!ais.getFormat().getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)) {
  //            ais = AudioSystem.getAudioInputStream(AudioFormat.Encoding.PCM_SIGNED, ais);
  //        }
  //        if (ais.getFormat().getChannels() > 1) {
  //            throw new IllegalArgumentException("Can only deal with mono audio signals");
  //        }
  //        int samplingRate = (int) ais.getFormat().getSampleRate();
  //        double[] audioData = MaryAudioUtils.getSamplesAsDoubleArray(ais);
  //        initialise(audioData, samplingRate, width, height);
  //    }
  //
  //    public SignalGraph(final double[] signal, int samplingRate)
  //    {
  //        this(signal, samplingRate, DEFAULT_WIDTH, DEFAULT_HEIGHT);
  //    }
  //
  //    public SignalGraph(final double[] signal, int samplingRate, int width, int height)
  //    {
  //        initialise(signal, samplingRate, width, height);
  //    }
  //
  //    protected void initialise(final double[] signal, int samplingRate, int width, int height)
  //    {
  //        super.initialise(width, height, 0, 1./samplingRate, signal);
  //        updateSound(signal, samplingRate);
  //    }
  //
  //    protected void update(double[] signal, int samplingRate)
  //    {
  //        super.updateData(0, 1./samplingRate, signal);
  //        updateSound(signal, samplingRate);
  //    }
  //
  //    protected void updateSound(double[] signal, int samplingRate)
  //    {
  //        AudioFormat audioFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, samplingRate, 16, 1, 2, samplingRate, false);
  //        DataLine.Info info = new DataLine.Info(Clip.class, audioFormat);
  //        final Clip clip;
  //        final Timer timer = new Timer(true);
  //        try {
  //            clip = (Clip) AudioSystem.getLine(info);
  //            clip.open(new DDSAudioInputStream(new BufferedDoubleDataSource(signal), audioFormat));
  //            System.err.println("Created clip");
  //            // Set it up so that pressing the space bar will play the audio
  //            getInputMap().put(KeyStroke.getKeyStroke("SPACE"), "startOrStopAudio");
  //            getInputMap(WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("SPACE"), "startOrStopAudio");
  //            getActionMap().put("startOrStopAudio", new AbstractAction() {
  //                public void actionPerformed(ActionEvent e) {
  //                    synchronized(clip) {
  //                        if (clip.isActive()) {
  //                            System.err.println("Stopping clip.");
  //                            clip.stop();
  //                        } else {
  //                            System.err.println("Rewinding clip.");
  //                            if (Double.isNaN(positionCursor.x)) { // no cursor, play from start
  //                                clip.setFramePosition(0);
  //                            } else { // play from cursor position
  //                                clip.setFramePosition(X2indexX(positionCursor.x));
  //                            }
  //                            if (!Double.isNaN(rangeCursor.x)) { // range set?
  //                                System.err.println("Setting timer task");
  //                                int endFrame = X2indexX(rangeCursor.x);
  //                                timer.schedule(new ClipObserver(clip, endFrame), 50, 50);
  //                            }
  //                            System.err.println("Starting clip.");
  //                            clip.start();
  //                        }
  //                    }
  //                }
  //            });
  //        } catch (Exception e) {
  //            e.printStackTrace();
  //        }
  //    }
  //
  //    public class ClipObserver extends TimerTask
  //    {
  //        protected Clip clip;
  //        protected int endFrame;
  //
  //        public ClipObserver(Clip clip, int endFrame)
  //        {
  //            this.clip = clip;
  //            this.endFrame = endFrame;
  //        }
  //
  //        public void run()
  //        {
  //            System.err.println("Timer task running");
  //            if (!clip.isActive() // already stopped?
  //                || clip.getFramePosition() >= endFrame) {
  //                System.err.println("Timer task stopping clip.");
  //                clip.stop();
  //                this.cancel();
  //            }
  //        }
  //    }
  ////
  ////    public static void main(String[] args) throws Exception
  ////    {
  ////        for (int i=0; i<args.length; i++) {
  ////            AudioInputStream ais = AudioSystem.getAudioInputStream(new File(args[i]));
  ////            SignalGraph signalGraph = new SignalGraph(ais);
  ////            signalGraph.showInJFrame(args[i], true, false);
  ////        }
  ////    }
  //}
  //
  