jsampler/task/UpdateChannels.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2009 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   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.Vector;

import org.jsampler.CC;
import org.jsampler.SamplerChannelModel;
import org.jsampler.SamplerModel;

import org.linuxsampler.lscp.SamplerChannel;

import net.sf.juife.Task;

import static org.jsampler.JSI18n.i18n;


/**
 * This task updates the sampler channel list.
 * @author Grigor Iliev
 */
public class UpdateChannels extends EnhancedTask {
        /** Creates a new instance of <code>UpdateChannels</code>. */
        public
        UpdateChannels() {
                setTitle("UpdateChannels_task");
                setDescription(i18n.getMessage("UpdateChannels.description"));
        }
        
        /** The entry point of the task. */
        @Override
        public void
        exec() throws Exception {
                SamplerModel sm = CC.getSamplerModel();
                Integer[] chnIDs = CC.getClient().getSamplerChannelIDs();
                
                boolean found = false, changed = false;
                
                boolean isAdjustingOld = CC.getSamplerModel().getChannelListIsAdjusting();
                
                javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
                        public void
                        run() {
                                CC.getSamplerModel().setChannelListIsAdjusting(true);
                                CC.getMainFrame().setAutoUpdateChannelListUI(false);
                        }
                });
                
                for(SamplerChannelModel m : sm.getChannels()) {
                        for(int i = 0; i < chnIDs.length; i++) {
                                if(m.getChannelId() == chnIDs[i]) {
                                        chnIDs[i] = -1;
                                        found = true;
                                }
                        }
                        
                        if(!found) {
                                sm.removeChannelById(m.getChannelId());
                                changed = true;
                        }
                        found = false;
                }
                
                Vector<SamplerChannel> v = new Vector<SamplerChannel>();
                for(int id : chnIDs) {
                        if(id >= 0) v.add(CC.getClient().getSamplerChannelInfo(id));
                }
                
                for(int i = 0; i < v.size() - 1; i++) sm.addChannel(v.elementAt(i));
                
                manageAutoUpdate(false);
                
                if(v.size() > 0) sm.addChannel(v.elementAt(v.size() - 1));
                else if(!CC.getSamplerModel().getChannelListIsAdjusting()) {
                        if(!isAdjustingOld && !changed); // do nothing if nothing is changed
                        else sm.addChannel(null); // fire dummy event to end an adjusting sequence
                }
        }

        @Override
        public void
        onError(Exception e) {
                manageAutoUpdate(true);
        }
        
        private void
        manageAutoUpdate(boolean force) {
                if(!force) {
                        Task[] tasks = CC.getTaskQueue().getPendingTasks();
                        for(Task t : tasks) if(t.equals(this)) return;
                }
                
                try {
                        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
                                public void
                                run() {
                                        CC.getSamplerModel().setChannelListIsAdjusting(false);
                                        CC.getMainFrame().setAutoUpdateChannelListUI(true);
                                        CC.getMainFrame().updateChannelListUI();
                                }
                        });
                } catch(Exception x) {
                        x.printStackTrace();
                }
        }
                
        /**
         * Used to decrease the traffic. All task in the queue
         * equal to this are removed if added using {@link org.jsampler.CC#scheduleTask}.
         * @see org.jsampler.CC#addTask
         */
        @Override
        public boolean
        equals(Object obj) {
                if(obj == null) return false;
                if(!(obj instanceof UpdateChannels)) return false;
                
                return true;
        }
}
1	iliev	787	/*
2			* JSampler - a java front-end for LinuxSampler
3			*
4	iliev	1867	* Copyright (C) 2005-2009 Grigor Iliev <grigor@grigoriliev.com>
5	iliev	787	*
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	iliev	1737	import java.util.Vector;
26	iliev	787
27			import org.jsampler.CC;
28	iliev	1143	import org.jsampler.SamplerChannelModel;
29	iliev	787	import org.jsampler.SamplerModel;
30
31	iliev	1737	import org.linuxsampler.lscp.SamplerChannel;
32
33	iliev	1734	import net.sf.juife.Task;
34
35	iliev	787	import static org.jsampler.JSI18n.i18n;
36
37
38			/**
39	iliev	1143	* This task updates the sampler channel list.
40	iliev	787	* @author Grigor Iliev
41			*/
42	iliev	842	public class UpdateChannels extends EnhancedTask {
43	iliev	911	/** Creates a new instance of <code>UpdateChannels</code>. */
44	iliev	787	public
45			UpdateChannels() {
46			setTitle("UpdateChannels_task");
47			setDescription(i18n.getMessage("UpdateChannels.description"));
48			}
49
50	iliev	911	/** The entry point of the task. */
51	iliev	1867	@Override
52	iliev	787	public void
53	iliev	1867	exec() throws Exception {
54			SamplerModel sm = CC.getSamplerModel();
55			Integer[] chnIDs = CC.getClient().getSamplerChannelIDs();
56
57	iliev	1880	boolean found = false, changed = false;
58	iliev	1867
59	iliev	1880	boolean isAdjustingOld = CC.getSamplerModel().getChannelListIsAdjusting();
60	iliev	1867
61			javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
62			public void
63			run() {
64			CC.getSamplerModel().setChannelListIsAdjusting(true);
65			CC.getMainFrame().setAutoUpdateChannelListUI(false);
66			}
67			});
68
69			for(SamplerChannelModel m : sm.getChannels()) {
70			for(int i = 0; i < chnIDs.length; i++) {
71			if(m.getChannelId() == chnIDs[i]) {
72			chnIDs[i] = -1;
73			found = true;
74	iliev	1737	}
75	iliev	787	}
76
77	iliev	1880	if(!found) {
78			sm.removeChannelById(m.getChannelId());
79			changed = true;
80			}
81	iliev	1867	found = false;
82	iliev	787	}
83	iliev	1867
84			Vector<SamplerChannel> v = new Vector<SamplerChannel>();
85			for(int id : chnIDs) {
86			if(id >= 0) v.add(CC.getClient().getSamplerChannelInfo(id));
87			}
88
89			for(int i = 0; i < v.size() - 1; i++) sm.addChannel(v.elementAt(i));
90
91			manageAutoUpdate(false);
92
93			if(v.size() > 0) sm.addChannel(v.elementAt(v.size() - 1));
94			else if(!CC.getSamplerModel().getChannelListIsAdjusting()) {
95	iliev	1880	if(!isAdjustingOld && !changed); // do nothing if nothing is changed
96			else sm.addChannel(null); // fire dummy event to end an adjusting sequence
97	iliev	1867	}
98	iliev	787	}
99	iliev	1867
100			@Override
101			public void
102			onError(Exception e) {
103			manageAutoUpdate(true);
104			}
105	iliev	1734
106			private void
107			manageAutoUpdate(boolean force) {
108			if(!force) {
109			Task[] tasks = CC.getTaskQueue().getPendingTasks();
110			for(Task t : tasks) if(t.equals(this)) return;
111			}
112
113	iliev	1818	try {
114			javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
115			public void
116			run() {
117			CC.getSamplerModel().setChannelListIsAdjusting(false);
118			CC.getMainFrame().setAutoUpdateChannelListUI(true);
119			CC.getMainFrame().updateChannelListUI();
120			}
121			});
122			} catch(Exception x) {
123			x.printStackTrace();
124			}
125	iliev	1734	}
126
127			/**
128			* Used to decrease the traffic. All task in the queue
129			* equal to this are removed if added using {@link org.jsampler.CC#scheduleTask}.
130			* @see org.jsampler.CC#addTask
131			*/
132	iliev	1818	@Override
133	iliev	1734	public boolean
134			equals(Object obj) {
135			if(obj == null) return false;
136			if(!(obj instanceof UpdateChannels)) return false;
137
138			return true;
139			}
140	iliev	787	}