jsampler/task/UpdateChannels.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2011 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 org.jsampler.CC;
import org.jsampler.SamplerChannelModel;
import org.jsampler.SamplerModel;

import org.linuxsampler.lscp.SamplerChannel;

import net.sf.juife.PDUtils;
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"));
                //setCalculateElapsedTime(true);
        }
        
        /** 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();
                
                PDUtils.runOnUiThreadAndWait(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;
                }

                SamplerChannel[] chns = CC.getClient().getSamplerChannels(chnIDs);
                
                for(int i = 0; i < chns.length - 1; i++) sm.addChannel(chns[i]);
                
                manageAutoUpdate(false);
                
                if(chns.length > 0) sm.addChannel(chns[chns.length - 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 {
                        PDUtils.runOnUiThreadAndWait(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	2192	* Copyright (C) 2005-2011 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			import org.jsampler.CC;
26	iliev	1143	import org.jsampler.SamplerChannelModel;
27	iliev	787	import org.jsampler.SamplerModel;
28
29	iliev	1737	import org.linuxsampler.lscp.SamplerChannel;
30
31	iliev	2288	import net.sf.juife.PDUtils;
32	iliev	1734	import net.sf.juife.Task;
33
34	iliev	787	import static org.jsampler.JSI18n.i18n;
35
36
37			/**
38	iliev	1143	* This task updates the sampler channel list.
39	iliev	787	* @author Grigor Iliev
40			*/
41	iliev	842	public class UpdateChannels extends EnhancedTask {
42	iliev	911	/** Creates a new instance of <code>UpdateChannels</code>. */
43	iliev	787	public
44			UpdateChannels() {
45			setTitle("UpdateChannels_task");
46			setDescription(i18n.getMessage("UpdateChannels.description"));
47	iliev	2192	//setCalculateElapsedTime(true);
48	iliev	787	}
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	iliev	2288	PDUtils.runOnUiThreadAndWait(new Runnable() {
62	iliev	1867	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	2192
84			SamplerChannel[] chns = CC.getClient().getSamplerChannels(chnIDs);
85	iliev	1867
86	iliev	2192	for(int i = 0; i < chns.length - 1; i++) sm.addChannel(chns[i]);
87	iliev	1867
88			manageAutoUpdate(false);
89
90	iliev	2192	if(chns.length > 0) sm.addChannel(chns[chns.length - 1]);
91	iliev	1867	else if(!CC.getSamplerModel().getChannelListIsAdjusting()) {
92	iliev	1880	if(!isAdjustingOld && !changed); // do nothing if nothing is changed
93			else sm.addChannel(null); // fire dummy event to end an adjusting sequence
94	iliev	1867	}
95	iliev	787	}
96	iliev	1867
97			@Override
98			public void
99			onError(Exception e) {
100			manageAutoUpdate(true);
101			}
102	iliev	1734
103			private void
104			manageAutoUpdate(boolean force) {
105			if(!force) {
106			Task[] tasks = CC.getTaskQueue().getPendingTasks();
107			for(Task t : tasks) if(t.equals(this)) return;
108			}
109
110	iliev	1818	try {
111	iliev	2288	PDUtils.runOnUiThreadAndWait(new Runnable() {
112	iliev	1818	public void
113			run() {
114			CC.getSamplerModel().setChannelListIsAdjusting(false);
115			CC.getMainFrame().setAutoUpdateChannelListUI(true);
116			CC.getMainFrame().updateChannelListUI();
117			}
118			});
119			} catch(Exception x) {
120			x.printStackTrace();
121			}
122	iliev	1734	}
123
124			/**
125			* Used to decrease the traffic. All task in the queue
126			* equal to this are removed if added using {@link org.jsampler.CC#scheduleTask}.
127			* @see org.jsampler.CC#addTask
128			*/
129	iliev	1818	@Override
130	iliev	1734	public boolean
131			equals(Object obj) {
132			if(obj == null) return false;
133			if(!(obj instanceof UpdateChannels)) return false;
134
135			return true;
136			}
137	iliev	787	}