jsampler/task/SetChannelVolume.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.task;

import java.util.logging.Level;

import net.sf.juife.Task;

import org.jsampler.CC;
import org.jsampler.HF;

import static org.jsampler.JSI18n.i18n;


/**
 * This taks sets the volume of a specific sampler channel.
 * @author Grigor Iliev
 */
public class SetChannelVolume extends EnhancedTask {
        private int channel;
        private float volume;
        
        /**
         * Creates new instance of <code>SetChannelVolume</code>.
         * @param channel The sampler channel number.
         * @param volume The new volume value.
         */
        public
        SetChannelVolume(int channel, float volume) {
                setTitle("SetChannelVolume_task");
                setDescription(i18n.getMessage("SetChannelVolume.description", channel));
                
                this.channel = channel;
                this.volume = volume;
        }
        
        /** The entry point of the task. */
        public void
        run() {
                /*
                 * Because of the rapid flow of volume change tasks in some cases
                 * we need to do some optimization to decrease the traffic.
                 */
                boolean b = true;
                Task[] tS = CC.getTaskQueue().getPendingTasks();
                
                for(int i = tS.length - 1; i >= 0; i--) {
                        Task t = tS[i];
                        
                        if(t instanceof SetChannelVolume) {
                                SetChannelVolume scv = (SetChannelVolume)t;
                                if(scv.getChannelID() == channel) {
                                        CC.getTaskQueue().removeTask(scv);
                                }
                        }
                }
                
                try { CC.getClient().setChannelVolume(channel, volume); }
                catch(Exception x) {
                        setErrorMessage(getDescription() + ": " + HF.getErrorMessage(x));
                        CC.getLogger().log(Level.FINE, getErrorMessage(), x);
                }
        }
        
        /**
         * Gets the ID of the channel whose volume should be changed.
         * @return The ID of the channel whose volume should be changed.
         */
        public int
        getChannelID() { return channel; }
}
1	iliev	787	/*
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	iliev	911	import net.sf.juife.Task;
28
29	iliev	787	import org.jsampler.CC;
30			import org.jsampler.HF;
31
32			import static org.jsampler.JSI18n.i18n;
33
34
35			/**
36	iliev	911	* This taks sets the volume of a specific sampler channel.
37	iliev	787	* @author Grigor Iliev
38			*/
39	iliev	842	public class SetChannelVolume extends EnhancedTask {
40	iliev	787	private int channel;
41			private float volume;
42
43	iliev	911	/**
44			* Creates new instance of <code>SetChannelVolume</code>.
45			* @param channel The sampler channel number.
46			* @param volume The new volume value.
47			*/
48	iliev	787	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	iliev	911	/** The entry point of the task. */
58	iliev	787	public void
59			run() {
60	iliev	911	/*
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	iliev	787	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	iliev	911
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	iliev	787	}