org/jsampler/DefaultAudioDeviceModel.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005 Grigor Kirilov Iliev
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler;

import java.util.Vector;

import javax.swing.SwingUtilities;

import org.jsampler.event.AudioDeviceEvent;
import org.jsampler.event.AudioDeviceListener;

import org.linuxsampler.lscp.AudioOutputDevice;


/**
 * This class provides default implementation of the <code>AudioDeviceModel</code> interface.
 * @author Grigor Iliev
 */
public class DefaultAudioDeviceModel implements AudioDeviceModel {
        private AudioOutputDevice audioDevice;
        
        private final Vector<AudioDeviceListener> listeners = new Vector<AudioDeviceListener>();
        
        /**
         * Creates a new instance of <code>DefaultAudioDeviceModel</code> using the
         * specified non-null audio device.
         * @param audioDevice An <code>AudioOutputDevice</code> instance providing the current
         * settings of the audio device which will be represented by this model.
         * @throws IllegalArgumentException If <code>audioDevice</code> is <code>null</code>.
         */
        public
        DefaultAudioDeviceModel(AudioOutputDevice audioDevice) {
                if(audioDevice == null)
                        throw new IllegalArgumentException("audioDevice must be non null");
                
                this.audioDevice = audioDevice;
        }
        
        /**
         * Registers the specified listener to be notified when
         * the settings of the audio device are changed.
         * @param l The <code>AudioDeviceListener</code> to register.
         */
        public void
        addAudioDeviceListener(AudioDeviceListener l) { listeners.add(l); }
        
        /**
         * Removes the specified listener.
         * @param l The <code>AudioDeviceListener</code> to remove.
         */
        public void
        removeAudioDeviceListener(AudioDeviceListener l) { listeners.remove(l); }
        
        /**
         * Gets the numerical ID of this audio device.
         * @return The numerical ID of this audio device or
         * -1 if the device number is not set.
         */
        public int
        getDeviceID() { return audioDevice.getDeviceID(); }
        
        /**
         * Gets the current settings of the audio device represented by this model.
         * @return <code>AudioOutputDevice</code> instance providing
         * the current settings of the audio device represented by this model.
         */
        public AudioOutputDevice
        getDeviceInfo() { return audioDevice; }
        
        /**
         * Updates the settings of the audio device represented by this model.
         * @param device The new audio device settings.
         */
        public void
        setDeviceInfo(AudioOutputDevice device) {
                audioDevice = device;
                fireSettingsChanged();
        }
        
        /**
         * Sets whether the audio device is enabled or disabled.
         * @param active If <code>true</code> the audio device is enabled,
         * else the device is disabled.
         */
        public void
        setActive(boolean active) {
                if(active == getDeviceInfo().isActive()) return;
                
                audioDevice.setActive(active);
                fireSettingsChanged();
        }
        
        /**
         * Determines whether the audio device is active.
         * @return <code>true</code> if the device is enabled and <code>false</code> otherwise.
         */
        public boolean
        isActive() { return audioDevice.isActive(); }
        
        /**
         * Notifies listeners that the settings of the audio device are changed.
         */
        private void
        fireSettingsChanged() {
                fireSettingsChanged(new AudioDeviceEvent(this, this));
        }
        
        /**
         * Notifies listeners that the settings of the audio device are changed.
         * This method should be invoked from the event-dispatching thread.
         */
        private void
        fireSettingsChanged(final AudioDeviceEvent e) {
                SwingUtilities.invokeLater(new Runnable() {
                        public void
                        run() { for(AudioDeviceListener l : listeners) l.settingsChanged(e); }
                });
        }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005 Grigor Kirilov Iliev
5	*
6	* This file is part of JSampler.
7	*
8	* JSampler is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License version 2
10	* as published by the Free Software Foundation.
11	*
12	* JSampler is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with JSampler; if not, write to the Free Software
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20	* MA 02111-1307 USA
21	*/
22
23	package org.jsampler;
24
25	import java.util.Vector;
26
27	import javax.swing.SwingUtilities;
28
29	import org.jsampler.event.AudioDeviceEvent;
30	import org.jsampler.event.AudioDeviceListener;
31
32	import org.linuxsampler.lscp.AudioOutputDevice;
33
34
35	/**
36	* This class provides default implementation of the <code>AudioDeviceModel</code> interface.
37	* @author Grigor Iliev
38	*/
39	public class DefaultAudioDeviceModel implements AudioDeviceModel {
40	private AudioOutputDevice audioDevice;
41
42	private final Vector<AudioDeviceListener> listeners = new Vector<AudioDeviceListener>();
43
44	/**
45	* Creates a new instance of <code>DefaultAudioDeviceModel</code> using the
46	* specified non-null audio device.
47	* @param audioDevice An <code>AudioOutputDevice</code> instance providing the current
48	* settings of the audio device which will be represented by this model.
49	* @throws IllegalArgumentException If <code>audioDevice</code> is <code>null</code>.
50	*/
51	public
52	DefaultAudioDeviceModel(AudioOutputDevice audioDevice) {
53	if(audioDevice == null)
54	throw new IllegalArgumentException("audioDevice must be non null");
55
56	this.audioDevice = audioDevice;
57	}
58
59	/**
60	* Registers the specified listener to be notified when
61	* the settings of the audio device are changed.
62	* @param l The <code>AudioDeviceListener</code> to register.
63	*/
64	public void
65	addAudioDeviceListener(AudioDeviceListener l) { listeners.add(l); }
66
67	/**
68	* Removes the specified listener.
69	* @param l The <code>AudioDeviceListener</code> to remove.
70	*/
71	public void
72	removeAudioDeviceListener(AudioDeviceListener l) { listeners.remove(l); }
73
74	/**
75	* Gets the numerical ID of this audio device.
76	* @return The numerical ID of this audio device or
77	* -1 if the device number is not set.
78	*/
79	public int
80	getDeviceID() { return audioDevice.getDeviceID(); }
81
82	/**
83	* Gets the current settings of the audio device represented by this model.
84	* @return <code>AudioOutputDevice</code> instance providing
85	* the current settings of the audio device represented by this model.
86	*/
87	public AudioOutputDevice
88	getDeviceInfo() { return audioDevice; }
89
90	/**
91	* Updates the settings of the audio device represented by this model.
92	* @param device The new audio device settings.
93	*/
94	public void
95	setDeviceInfo(AudioOutputDevice device) {
96	audioDevice = device;
97	fireSettingsChanged();
98	}
99
100	/**
101	* Sets whether the audio device is enabled or disabled.
102	* @param active If <code>true</code> the audio device is enabled,
103	* else the device is disabled.
104	*/
105	public void
106	setActive(boolean active) {
107	if(active == getDeviceInfo().isActive()) return;
108
109	audioDevice.setActive(active);
110	fireSettingsChanged();
111	}
112
113	/**
114	* Determines whether the audio device is active.
115	* @return <code>true</code> if the device is enabled and <code>false</code> otherwise.
116	*/
117	public boolean
118	isActive() { return audioDevice.isActive(); }
119
120	/**
121	* Notifies listeners that the settings of the audio device are changed.
122	*/
123	private void
124	fireSettingsChanged() {
125	fireSettingsChanged(new AudioDeviceEvent(this, this));
126	}
127
128	/**
129	* Notifies listeners that the settings of the audio device are changed.
130	* This method should be invoked from the event-dispatching thread.
131	*/
132	private void
133	fireSettingsChanged(final AudioDeviceEvent e) {
134	SwingUtilities.invokeLater(new Runnable() {
135	public void
136	run() { for(AudioDeviceListener l : listeners) l.settingsChanged(e); }
137	});
138	}
139	}