com.pyx4j.jni.Beep Maven / Gradle / Ivy

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/*
 * Pyx4j framework
 * Copyright (C) 2006 pyx4.com.
 *
 * @author vlads
 * @version $Id: Beep.java 1 2007-03-09 04:03:48Z vlads $
 */
package com.pyx4j.jni;

import java.util.List;
import java.util.StringTokenizer;
import java.util.Vector;

/**
 * Genrate beep on windows
 */

public class Beep {
    
    static {
        Common.isAvailable();
    }
    
    /**
     * 
     * @param freq The frequency of the sound, in hertz. This parameter must be in the range 37 through 32,767 
     * @param duration The duration of the sound, in milliseconds. 
     */
    public static native void beep(int freq, int duration);
    
    public static Thread sound(final int[] args) {
        if (!Common.isAvailable()) {
            return null;
        }
        Runnable async = new Runnable() {
            public void run() {
                int repeate_count = 0;
                for (int i = 0; i < (args.length - 1); i += 2) {
                    if (args[i] < 0) {
                        // Repeate
                        int cnt = -args[i];
                        if (repeate_count > cnt) {
                            break;
                        }
                        repeate_count ++;
                        i = 0;
                        try {
                            Thread.sleep(args[i + 1]);
                        } catch (InterruptedException e) {
                            break;
                        }
                    } else if (args[i] == 0) {
                        try {
                            Thread.sleep(args[i + 1]);
                        } catch (InterruptedException e) {
                            break;
                        }
                    } else {
                        beep(args[i], args[i + 1]);
                    }
                }
            }
        };
        Thread t = new Thread(async, "Sound");
        t.setDaemon(true); 
        t.start();
        return t;
    }
    
    public static Thread sound(String args) {
        if ((args == null) || (args.length() == 0)) {
            return null;
        }
        StringTokenizer st = new StringTokenizer(args, " ");
        List ints = new Vector();
        while (st.hasMoreTokens()) {
            ints.add(Integer.valueOf((st.nextToken())));
        }
        int[] fd = new int[ints.size()];
        for (int i = 0; i < ints.size(); i++) {
            fd[i] = ints.get(i).intValue();
        }
        return sound(fd);

    }
    
    public static void main(String[] args) {
        if (!Common.isAvailable()) {
            System.err.println("Native DLL not avalable");
        }
        Thread t = null;
        if (args.length < 2) {
            t = sound("1500 200  0 200  2500 200  0 100  2000 200");
            System.out.println("Beep $freq $duration [$freq $duration]*");
            System.out.println("0 $freq is pause");
            System.out.println("negative $freq is repeat count");
        } else  if (args.length == 2) {
            beep(Integer.valueOf(args[0]).intValue(), Integer.valueOf(args[1]).intValue());
        } else {
            int[] fd = new int[args.length];
            for (int i = 0; i < args.length; i++) {
                fd[i] = Integer.valueOf(args[i]).intValue();
            }
            t = sound(fd);
        }
        while ((t != null) && (t.isAlive())) {
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                break;
            }
        }
    }
}