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 tone 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;

	public void init()
	{
		synth = JSyn.createSynthesizer();
		
		// Add a tone generator.
		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 the output.
		osc.output.connect( 0, lineOut.input, 0 );
		
		// 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();
	}

	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();
	}

	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();
	}

}