/[svn]/jsampler/trunk/src/org/jsampler/task/SetChannelVolume.java
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Contents of /jsampler/trunk/src/org/jsampler/task/SetChannelVolume.java

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Revision 911 - (show annotations) (download)
Mon Aug 7 18:25:58 2006 UTC (17 years, 7 months ago) by iliev
File size: 2494 byte(s)
updating to JSampler 0.3a

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.task;
24
25 import java.util.logging.Level;
26
27 import net.sf.juife.Task;
28
29 import org.jsampler.CC;
30 import org.jsampler.HF;
31
32 import static org.jsampler.JSI18n.i18n;
33
34
35 /**
36 * This taks sets the volume of a specific sampler channel.
37 * @author Grigor Iliev
38 */
39 public class SetChannelVolume extends EnhancedTask {
40 private int channel;
41 private float volume;
42
43 /**
44 * Creates new instance of <code>SetChannelVolume</code>.
45 * @param channel The sampler channel number.
46 * @param volume The new volume value.
47 */
48 public
49 SetChannelVolume(int channel, float volume) {
50 setTitle("SetChannelVolume_task");
51 setDescription(i18n.getMessage("SetChannelVolume.description", channel));
52
53 this.channel = channel;
54 this.volume = volume;
55 }
56
57 /** The entry point of the task. */
58 public void
59 run() {
60 /*
61 * Because of the rapid flow of volume change tasks in some cases
62 * we need to do some optimization to decrease the traffic.
63 */
64 boolean b = true;
65 Task[] tS = CC.getTaskQueue().getPendingTasks();
66
67 for(int i = tS.length - 1; i >= 0; i--) {
68 Task t = tS[i];
69
70 if(t instanceof SetChannelVolume) {
71 SetChannelVolume scv = (SetChannelVolume)t;
72 if(scv.getChannelID() == channel) {
73 CC.getTaskQueue().removeTask(scv);
74 }
75 }
76 }
77
78 try { CC.getClient().setChannelVolume(channel, volume); }
79 catch(Exception x) {
80 setErrorMessage(getDescription() + ": " + HF.getErrorMessage(x));
81 CC.getLogger().log(Level.FINE, getErrorMessage(), x);
82 }
83 }
84
85 /**
86 * Gets the ID of the channel whose volume should be changed.
87 * @return The ID of the channel whose volume should be changed.
88 */
89 public int
90 getChannelID() { return channel; }
91 }

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