package jmsltestsuite;

import java.awt.*;
import java.awt.event.*;

import com.softsynth.jmsl.*;
import com.softsynth.jmsl.midi.MidiIO_JavaSound;
import com.softsynth.jmsl.midi.MidiInstrument;

/**
 * This class tests MidiScheduling by playing a parallel collection of monophonic melodies, whose
 * timing (in)accuracy is clearly audible. Uses GRAME's MidiShare to get accurate Midi output.
 * 
 * Comment in or out the line in main()... JMSL.midi = new MidiIO_MidiShare(); ...and recompile, to
 * toggle between MidiPort and MidiShare.
 * 
 * Grame's MidiShare uses its own event buffer, which is more accurate than JMSL's Java-Thread-based
 * Event Scheduler, used to schedule non-event buffered Midi output as it is currently implemented
 * in MidiPort.
 * 
 * This test sends on Midi Channel 10 !!!
 * 
 * @author Nick Didkovsky 3/22/01
 */
public class MidiSchedulingTest extends Frame implements ActionListener {

    private Button stopButton;
    private Button goButton;
    private ParallelCollection parallelCollection;

    public MidiSchedulingTest() {
        setLayout(new FlowLayout());
        add(goButton = new Button("GO"));
        goButton.addActionListener(this);
        add(stopButton = new Button("STOP"));
        stopButton.addActionListener(this);
        stopButton.setEnabled(false);
        build();
    }

    public void build() {
        parallelCollection = new ParallelCollection();
        parallelCollection.setRepeats(1000);
        int numShapes = 1;
        for (int shapeIndex = 0; shapeIndex < numShapes; shapeIndex++) {
            MusicShape m = new MusicShape(4);
            parallelCollection.add(m);
            m.setInstrument(new MidiInstrument(10));
            for (int i = 0; i < 32; i++) {
                double dur = 0.125;
                double pitch = 36;
                if (i % 4 == 0) {
                    m.add(0, 31, 90, dur * 0.80);
                }
                m.add(dur, pitch, 90, dur * 0.80);
            }
        }
        System.out.println("Does this sound like rhythmically solid timing?");
    }

    public void actionPerformed(ActionEvent ev) {
        Object source = ev.getSource();
        if (source == goButton) {
            goButton.setEnabled(false);
            stopButton.setEnabled(true);
            parallelCollection.launch(JMSL.now());
        }
        if (source == stopButton) {
            parallelCollection.finishAll();
            try {
                parallelCollection.waitForDone();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            goButton.setEnabled(true);
            stopButton.setEnabled(false);
        }

    }

    public static void main(String args[]) {
        JMSL.clock.setAdvance(0.1);
        MidiSchedulingTest tms = new MidiSchedulingTest();
//        MusicDevice dev = MidiIO_MidiShare.instance();
         MusicDevice dev = MidiIO_JavaSound.instance();
        // MusicDevice dev = MidiIO_MidiPort.instance();
        // MusicDevice dev = MidiIO_MidiPortLegacy.instance();
        dev.edit(tms);
        dev.open();
        tms.pack();
        tms.setVisible(true);
        WindowAdapter windowAdapter = new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                JMSL.closeMusicDevices();
                System.exit(0);
            }
        };
        tms.addWindowListener(windowAdapter);
    }

}