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+/*
+ * Copyright 2010 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.
+ */
+
+package com.jsyn.examples;
+
+import java.awt.GridLayout;
+
+import javax.swing.JApplet;
+import javax.swing.JPanel;
+
+import com.jsyn.JSyn;
+import com.jsyn.Synthesizer;
+import com.jsyn.swing.ExponentialRangeModel;
+import com.jsyn.swing.JAppletFrame;
+import com.jsyn.swing.PortControllerFactory;
+import com.jsyn.swing.PortModelFactory;
+import com.jsyn.swing.RotaryTextController;
+import com.jsyn.unitgen.LineOut;
+import com.jsyn.unitgen.LinearRamp;
+import com.jsyn.unitgen.SawtoothOscillatorBL;
+import com.jsyn.unitgen.UnitOscillator;
+
+/**
+ * Play a sawtooth using a JSyn oscillator and some knobs.
+ * 
+ * @author Phil Burk (C) 2010 Mobileer Inc
+ */
+public class SawFaders extends JApplet {
+    private static final long serialVersionUID = -2704222221111608377L;
+    private Synthesizer synth;
+    private UnitOscillator osc;
+    private LinearRamp lag;
+    private LineOut lineOut;
+
+    @Override
+    public void init() {
+        synth = JSyn.createSynthesizer();
+
+        // Add a tone generator. (band limited sawtooth)
+        synth.add(osc = new SawtoothOscillatorBL());
+        // Add a lag to smooth out amplitude changes and avoid pops.
+        synth.add(lag = new LinearRamp());
+        // Add an output mixer.
+        synth.add(lineOut = new LineOut());
+        // Connect the oscillator to both left and right output.
+        osc.output.connect(0, lineOut.input, 0);
+        osc.output.connect(0, lineOut.input, 1);
+
+        // Set the minimum, current and maximum values for the port.
+        lag.output.connect(osc.amplitude);
+        lag.input.setup(0.0, 0.5, 1.0);
+        lag.time.set(0.2);
+
+        // Arrange the faders in a stack.
+        setLayout(new GridLayout(0, 1));
+
+        ExponentialRangeModel amplitudeModel = PortModelFactory.createExponentialModel(lag.input);
+        RotaryTextController knob = new RotaryTextController(amplitudeModel, 5);
+        JPanel knobPanel = new JPanel();
+        knobPanel.add(knob);
+        add(knobPanel);
+
+        osc.frequency.setup(50.0, 300.0, 10000.0);
+        add(PortControllerFactory.createExponentialPortSlider(osc.frequency));
+        validate();
+    }
+
+    @Override
+    public void start() {
+        // Start synthesizer using default stereo output at 44100 Hz.
+        synth.start();
+        // We only need to start the LineOut. It will pull data from the
+        // oscillator.
+        lineOut.start();
+    }
+
+    @Override
+    public void stop() {
+        synth.stop();
+    }
+
+    /* Can be run as either an application or as an applet. */
+    public static void main(String args[]) {
+        SawFaders applet = new SawFaders();
+        JAppletFrame frame = new JAppletFrame("SawFaders", applet);
+        frame.setSize(440, 200);
+        frame.setVisible(true);
+        frame.test();
+    }
+
+}