//
//  ClipによるPCMデータ再生
//
//  2001/10/26　宍戸　輝光
//

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.sound.sampled.*;

public class jclip extends JFrame implements ActionListener {

	static jclip app;

	JComboBox flist;
	JTextField len;
	JButton play;
	JLabel sl;

	String freqi[]={"8KHz","11KHz","22KHz","44KHz"};
	int freqs[]={8000,11025,22050,44100};
	byte data[];

	jclip() {

		Container cp=getContentPane();
		cp.setLayout(new FlowLayout());

		flist=new JComboBox(freqi);
		len=new JTextField(5);
		len.setText("64");
		play=new JButton("P l a y !");
		play.addActionListener(this);

		cp.add(new JLabel("Frequency"));
		cp.add(flist);
		cp.add(new JLabel("Length"));
		cp.add(len);
		cp.add(play);

		pack();

	}

	public static void main(String args[]) {

		app=new jclip();

		app.setVisible(true);

		app.setDefaultCloseOperation(EXIT_ON_CLOSE);

	}

	public void actionPerformed(ActionEvent e) {

		if (e.getSource()==play) {

			int l=Integer.parseInt(len.getText());

			if (l<1)
				return;

			int freq=freqs[flist.getSelectedIndex()];

			data=new byte[freq];

			for (int i=0;i<freq;i++)
				if (i % l < l/2)
					data[i]=110;
				else
					data[i]=-110;

			play(data,freq);

		}

	}

	private void play(byte dat[],int f) {

		AudioFormat frm=new AudioFormat(f,8,1,true,true);

		DataLine.Info di=new DataLine.Info(Clip.class,frm);

		Clip cp=null;

		try {
			cp=(Clip)AudioSystem.getLine(di);
			cp.open(frm,data,0,data.length);
		} catch(Exception e) {
			dispose();
		}

		cp.start();

	}

}