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/*
* Copyright 1997 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Test Envelope using Java Audio Synthesizer
* Trigger attack or release portion.
*
* @author (C) 1997 Phil Burk
*/
package com.jsyn.examples;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JPanel;
import com.jsyn.JSyn;
import com.jsyn.Synthesizer;
import com.jsyn.data.SegmentedEnvelope;
import com.jsyn.swing.EnvelopeEditorPanel;
import com.jsyn.swing.EnvelopePoints;
import com.jsyn.swing.JAppletFrame;
import com.jsyn.unitgen.LineOut;
import com.jsyn.unitgen.SawtoothOscillatorBL;
import com.jsyn.unitgen.UnitOscillator;
import com.jsyn.unitgen.VariableRateDataReader;
import com.jsyn.unitgen.VariableRateMonoReader;
public class EditEnvelope1 extends JApplet {
private Synthesizer synth;
private UnitOscillator osc;
private LineOut lineOut;
private SegmentedEnvelope envelope;
private VariableRateDataReader envelopePlayer;
final int MAX_FRAMES = 16;
JButton hitme;
JButton attackButton;
JButton releaseButton;
private EnvelopeEditorPanel envEditor;
private EnvelopePoints points;
/* Can be run as either an application or as an applet. */
public static void main(String args[]) {
EditEnvelope1 applet = new EditEnvelope1();
JAppletFrame frame = new JAppletFrame("Test SynthEnvelope", applet);
frame.setSize(440, 200);
frame.setVisible(true);
frame.test();
}
/*
* Setup synthesis.
*/
@Override
public void start() {
setLayout(new BorderLayout());
// Create a context for the synthesizer.
synth = JSyn.createSynthesizer();
// Add a tone generator.
synth.add(osc = new SawtoothOscillatorBL());
// Add an envelope player.
synth.add(envelopePlayer = new VariableRateMonoReader());
envelope = new SegmentedEnvelope(MAX_FRAMES);
// Add an output mixer.
synth.add(lineOut = new LineOut());
envelopePlayer.output.connect(osc.amplitude);
// Connect the oscillator to the output.
osc.output.connect(0, lineOut.input, 0);
osc.output.connect(0, lineOut.input, 1);
// Start synthesizer using default stereo output at 44100 Hz.
synth.start();
JPanel bottomPanel = new JPanel();
bottomPanel.add(hitme = new JButton("On"));
hitme.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
points.updateEnvelopeIfDirty(envelope);
envelopePlayer.dataQueue.queueOn(envelope);
}
});
bottomPanel.add(attackButton = new JButton("Off"));
attackButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
points.updateEnvelopeIfDirty(envelope);
envelopePlayer.dataQueue.queueOff(envelope);
}
});
bottomPanel.add(releaseButton = new JButton("Queue"));
releaseButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
points.updateEnvelopeIfDirty(envelope);
envelopePlayer.dataQueue.queue(envelope);
}
});
add(bottomPanel, BorderLayout.SOUTH);
lineOut.start();
// Create vector of points for editor.
points = new EnvelopePoints();
points.setName(osc.amplitude.getName());
// Setup initial envelope shape.
points.add(0.5, 1.0);
points.add(0.5, 0.2);
points.add(0.5, 0.8);
points.add(0.5, 0.0);
points.updateEnvelope(envelope);
// Add an envelope editor to the center of the panel.
add("Center", envEditor = new EnvelopeEditorPanel(points, MAX_FRAMES));
/* Synchronize Java display. */
getParent().validate();
getToolkit().sync();
}
@Override
public void stop() {
synth.stop();
}
}
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