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/*
* AudioFormatSet.java
*
* This file is part of Tritonus: http://www.tritonus.org/
*/
/*
* Copyright (c) 2000 by Florian Bomers <http://www.bomers.de>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
|<--- this code is formatted to fit into 80 columns --->|
*/
package org.tritonus.share.sampled;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import javax.sound.sampled.AudioFormat;
import org.tritonus.share.ArraySet;
import org.tritonus.share.sampled.AudioFormats;
/**
* A set where the elements are uniquely referenced by
* AudioFormats.equals rather than their object reference.
* No 2 equal AudioFormats can exist in the set.
* <p>
* This class provide convenience methods like
* <code>getAudioFormat(AudioFormat)</code> and
* <code>matches(AudioFormat)</code>.
* <p>
* The <code>contains(Object elem)</code> and <code>get(Object elem)</code>
* fail, if elem is not an instance of AudioFormat.
* <p>
* You shouldn't use the ArrayList specific functions
* like those that take index parameters.
* <p>
* It is not possible to add <code>null</code> elements.
* <p>
* Currently, the methods equals(.,.) and matches(.,.) of
* class AudioFormats are used. Let's hope that they will
* be integrated into AudioFormat.
*/
public class AudioFormatSet extends ArraySet<AudioFormat>
{
protected static final AudioFormat[] EMPTY_FORMAT_ARRAY = new AudioFormat[0];
public AudioFormatSet() {
super();
}
public AudioFormatSet(Collection<AudioFormat> c) {
super(c);
}
public boolean add(AudioFormat elem) {
if (elem==null || !(elem instanceof AudioFormat)) {
return false;
}
return super.add(elem);
}
public boolean contains(AudioFormat elem) {
if (elem==null || !(elem instanceof AudioFormat)) {
return false;
}
AudioFormat comp=(AudioFormat) elem;
Iterator it=iterator();
while (it.hasNext()) {
if (AudioFormats.equals(comp, (AudioFormat) it.next())) {
return true;
}
}
return false;
}
public AudioFormat get(AudioFormat elem) {
if (elem==null || !(elem instanceof AudioFormat)) {
return null;
}
AudioFormat comp=(AudioFormat) elem;
Iterator it=iterator();
while (it.hasNext()) {
AudioFormat thisElem=(AudioFormat) it.next();
if (AudioFormats.equals(comp, thisElem)) {
return thisElem;
}
}
return null;
}
public AudioFormat getAudioFormat(AudioFormat elem) {
return (AudioFormat) get(elem);
}
/**
* Checks whether this Set contains an AudioFormat
* that matches <code>elem</code>.
* The first matching format is returned. If no element
* matches <code>elem</code>, <code>null</code> is returned.
* <p>
* @see AudioFormats#matches(AudioFormat, AudioFormat)
*/
public AudioFormat matches(AudioFormat elem) {
if (elem==null) {
return null;
}
Iterator it=iterator();
while (it.hasNext()) {
AudioFormat thisElem=(AudioFormat) it.next();
if (AudioFormats.matches(elem, thisElem)) {
return thisElem;
}
}
return null;
}
// $$mp: TODO: remove; should be obsolete
public AudioFormat[] toAudioFormatArray() {
return (AudioFormat[]) toArray(EMPTY_FORMAT_ARRAY);
}
public void add(int index, AudioFormat element) {
throw new UnsupportedOperationException("unsupported");
}
public AudioFormat set(int index, AudioFormat element) {
throw new UnsupportedOperationException("unsupported");
}
}
/*** AudioFormatSet.java ***/
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