DataLine Info GUI Java code example - Click here to copy ->>>

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Code:



 

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import javax.swing.*;

import javax.swing.border.*;

import javax.sound.sampled.*;





public class DataLineInfoGUI extends JPanel {



    PCMFilePlayer player;

    JButton startButton;



    public DataLineInfoGUI (File f) {

        super();

        try {

            player = new PCMFilePlayer (f);

        } catch (Exception ioe) {

            add (new JLabel ("Error: " +

                             ioe.getMessage()));

            return;

        }

        DataLine line = player.getLine();

        // layout

        // line 1: name

        setLayout (new BoxLayout (this, BoxLayout.Y_AXIS));

        add (new JLabel ("File:  " +

                         player.getFile().getName()));

        // line 2: levels

        add (new DataLineLevelMeter (line));

        // line 3: format info as textarea

        AudioFormat format = line.getFormat();

        JTextArea ta = new JTextArea();

        ta.setBorder (new TitledBorder ("Format"));

        ta.append ("Encoding: " +

                   format.getEncoding().toString() + "\n");

        ta.append ("Bits/sample: " +

                   format.getSampleSizeInBits() + "\n");

        ta.append ("Channels: " +

                   format.getChannels() + "\n");

        ta.append ("Endianness: " +

                   (format.isBigEndian() ? " big " : "little") + "\n");

        ta.append ("Frame size: " +

                   format.getFrameSize() + "\n");

        ta.append ("Frame rate: " +

                   format.getFrameRate() + "\n");

        add (ta);



        // now start playing

        player.start();

    }



    public static void main (String[] args) {

        JFileChooser chooser = new JFileChooser();

        chooser.sho*****enDialog(null);

        File file = chooser.getSelectedFile();

        DataLineInfoGUI demo =

            new DataLineInfoGUI (file);



        JFrame f = new JFrame ("JavaSound info");

        f.getContentPane().add (demo);

        f.pack();

        f.setVisible(true);

    }





    class DataLineLevelMeter extends JPanel {

        DataLine line;

        float level = 0.0f;

        public DataLineLevelMeter (DataLine l) {

            line = l;

            Timer timer =

                new Timer (50,

                           new ActionListener (){

                               public void actionPerformed (ActionEvent e) {

                                   level = line.getLevel();

                                   repaint();

                               }

                           });

            timer.start();

        }

        public void paint (Graphics g) {

            Dimension d = getSize();

            g.setColor (Color.green);

            int meterWidth = (int) (level * (float) d.width);

            g.fillRect (0, 0, meterWidth, d.height);

        }



    }



}



/*   Swing Hacks

 *   Tips and Tools for Killer GUIs

 * By Joshua Marinacci, Chris Adamson

 *   First Edition June 2005

 *   Series: Hacks

 *   ISBN: 0-596-00907-0

 *   http://www.oreilly.com/catalog/swinghks/

 */