/**
 * Add algorithmically generated notes to a JMSL score. Notice that when there
 * are more notes than there are measures to accomodate them, that measures are
 * added as needed.
 * 
 * @author Phil Burk and Nick Didkovsky
 */
/*
 * (C) 1997 Phil Burk and Nick Didkovsky, All Rights Reserved JMSL is based upon
 * HMSL (C) Phil Burk, Larry Polansky and David Rosenboom.
 */

package jmsltutorial;

import java.awt.Color;
import java.awt.Label;

import com.softsynth.jmsl.*;
import com.softsynth.jmsl.score.*;

public class JScoreToot02 extends java.applet.Applet {

    Score score;
    ScoreFrame scoreFrame;

    /*
     * Build data when the applet initializes, and send JMSL's STDOut to a
     * TextArea
     */
    public void init() {
        JMSL.setIsApplet(true);
        setBackground(Color.yellow);
        add(new Label("Your JMSL score will open in a new window"));
    }

    /** generate 40 random notes and add to current staff # */
    void generateNotes() {
        int[] possibleIntervals = { 3, 4, 7, 9, 12 };
        int numNotes = 40;
        for (int i = 0; i < numNotes; i++) {
            double dur = 0.25;
            Note note = score.addNote(dur, NoteFactory.MIDDLE_C + JMSLRandom.choose(12), 0.5, dur * 0.8);
            note.setBeamedOut(i % 2 == 0); // beam out even numbered notes
            // occasionally add an interval above the last added note.
            if (JMSLRandom.choose(4) == 0)
                note.addInterval(possibleIntervals[JMSLRandom.choose(possibleIntervals.length)] + note.getPitchData());
        }

    }

    /* When applet starts up, display the scoreframe */
    public void start() {
        synchronized (JMSL.class) {
            JMSL.clock = new DefaultMusicClock();
            JMSL.clock.setAdvance(0.1);
            JMSL.scheduler = new EventScheduler();
            JMSL.scheduler.start();

            // 2 staves, width, height
            score = new Score(2, 800, 400);
            scoreFrame = new ScoreFrame();
            scoreFrame.addScore(score);

            score.addMeasure(10, 16);
            score.addMeasure(3, 4);
            score.addMeasure(3, 8);
            score.addMeasure(5, 8);
            // now add some algorithmically generated notes.
            // default insertion point is measure 0, staff 0
            generateNotes();
            score.rewind();
            score.setCurrentStaffNumber(1);
            generateNotes();
            scoreFrame.setVisible(true);
            scoreFrame.setSize(900, 600);
            score.render();
        }
    }

    /* When applet stops, hide the scoreframe */
    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();
        }
    }

}