/*
 * Created by Nick on Jan 3, 2005
 *
 */
package jmslexamples.simple;

import java.net.MalformedURLException;
import java.net.URL;

import com.softsynth.jmsl.*;
import com.softsynth.jmsl.midi.MidiIO_JavaSound;
import com.softsynth.jmsl.score.*;
import com.softsynth.jmsl.score.midi.MidiScoreInstrument;

/**
 * Build a simple Score with a JavaSound Midi orchestra
 * 
 * If the Java installation that is running this applet does not have a JavaSound MIDI soundbank,
 * your classes folder (ie your applet's codebase) must contain a folder called javasound containing
 * a soundbank called soundbank-min.gm (or call subfolder and the soundbank whatever you want and
 * change the name in the initJavaSoundMidi() method below
 * 
 * @author Nick Didkovsky, (c) 2004 All rights reserved, Email: didkovn@mail.rockefeller.edu
 *  
 */
public class MIDIScore extends java.applet.Applet {

    Score score;
    ScoreFrame scoreFrame;
    Orchestra orchestra;

    public void init() {
        JMSL.setIsApplet(true);
    }

    public void start() {
        synchronized (JMSL.class) {
            initJMSL();
            initMusicDevices();
            buildScore();
            buildOrchestra();
            buildScoreFrame();
        }
    }

    private void initJMSL() {
        JMSL.scheduler = new EventScheduler();
        JMSL.scheduler.start();
        JMSL.clock.setAdvance(0.1);
    }

    private void initMusicDevices() {
        JMSL.clock = new DefaultMusicClock();
        initJavaSoundMidi();
    }

    private void initJavaSoundMidi() {
        JMSL.midi = MidiIO_JavaSound.instance();
        try {
            ((MidiIO_JavaSound) JMSL.midi).setSoundbankURL(new URL(getCodeBase(), "javasound/soundbank-min.gm"));
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        JMSL.midi.edit(new java.awt.Frame());
        JMSL.midi.open();
    }

    private void buildOrchestra() {
        orchestra = new Orchestra();
        // use MidiScoreInstrument, a subclass of MidiInstrument which uses amplitude 0..1 for
        // velocity, for compatibility with JSyn instruments in the same score
        Instrument ins = new MidiScoreInstrument(1); // midi ch 1
        orchestra.addInstrument(ins);
        score.setOrchestra(orchestra);
    }

    void buildMeasure() {
        Measure m = score.addMeasure(5, 4);
        m.setTempo(120);
        // duration (where 1.0 = qtr), pitch (where 60 = middle C), amp, sustain
        for (int i = 0; i < 2; i++) {
            score.addNote(1.0, 60, 0.6, 0.8);
            score.addNote(1.0, 62, 0.6, 0.8);
            Note n = score.addNote(0.50, 63, 0.6, 0.8);
            n.setBeamedOut(true);
            score.addNote(0.50, 66, 0.6, 0.8);
            score.addNote(2.0, 72, 0.6, 0.8);
        }
    }

    void buildScore() {
        score = new Score(1, 800, 600);
        buildMeasure();
    }

    void buildScoreFrame() {
        scoreFrame = new ScoreFrame();
        scoreFrame.addScore(score);
        scoreFrame.pack();
        scoreFrame.setVisible(true);
    }

    public void stop() {
        synchronized (JMSL.class) {
            if (scoreFrame != null) {
                scoreFrame.setVisible(false);
                scoreFrame.dispose();
                Score.deleteCanvas();
                SelectionBuffer.disposeEditFrame();
                scoreFrame = null;
                score = null;
            }
            JMSL.scheduler.stop();
            JMSL.closeMusicDevices();
        }
    }
}