view/std/StdChannelsPane.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.view.std;


import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Rectangle;

import java.awt.event.KeyEvent;

import java.util.Vector;

import javax.swing.BorderFactory;
import javax.swing.JScrollPane;
import javax.swing.KeyStroke;
import javax.swing.ListSelectionModel;

import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

import net.sf.juife.ComponentList;
import net.sf.juife.ComponentListModel;
import net.sf.juife.DefaultComponentListModel;

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

import org.jsampler.view.JSChannel;
import org.jsampler.view.JSChannelsPane;

import static javax.swing.KeyStroke.*;


/**
 *
 * @author Grigor Iliev
 */
public abstract class StdChannelsPane extends JSChannelsPane implements ListSelectionListener {
        protected final ChannelList chnList = createChannelList();
        protected final ChannelListModel listModel = createChannelListModel();
        
        protected final JScrollPane scrollPane;
        
        protected static class ChannelList extends ComponentList { }
        
        protected static class ChannelListModel extends DefaultComponentListModel<JSChannel> { }
        
        private final Vector<ListSelectionListener> selListeners = new Vector<ListSelectionListener>();
                
        /**
         * Creates a new instance of <code>StdChannelsPane</code> with
         * the specified <code>title</code>.
         * @param title The title of this <code>StdChannelsPane</code>
         */
        public
        StdChannelsPane(String title) {
                super(title);
                
                setLayout(new BorderLayout());
                
                chnList.setOpaque(false);
                //chnList.setLayoutOrientation(JList.HORIZONTAL_WRAP);
                chnList.setModel(listModel);
                chnList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
                
                scrollPane = new JScrollPane(chnList);
                scrollPane.setBorder(BorderFactory.createEmptyBorder());
                add(scrollPane);
                
                setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
                installListeners();
        }
        
        protected void
        installListeners() {
                chnList.addListSelectionListener(this);
                
                KeyStroke k = getKeyStroke(KeyEvent.VK_UP, KeyEvent.ALT_MASK | KeyEvent.SHIFT_MASK);
                getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsOnTop");
                getActionMap().put("a4n.moveChannelsOnTop", getA4n().moveChannelsOnTop);
                
                k = getKeyStroke(KeyEvent.VK_UP, KeyEvent.ALT_MASK);
                getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsUp");
                getActionMap().put("a4n.moveChannelsUp", getA4n().moveChannelsUp);
                
                k = getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.ALT_MASK);
                getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsDown");
                getActionMap().put("a4n.moveChannelsDown", getA4n().moveChannelsDown);
                
                k = getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.ALT_MASK | KeyEvent.SHIFT_MASK);
                getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsAtBottom");
                getActionMap().put("a4n.moveChannelsAtBottom", getA4n().moveChannelsAtBottom);
                
        }
        
        public StdA4n
        getA4n() { return ((StdMainFrame)CC.getMainFrame()).getA4n(); }
        
        /**
         * Registers the specified listener for receiving list selection events.
         * @param listener The <code>ListSelectionListener</code> to register.
         */
        @Override
        public void
        addListSelectionListener(ListSelectionListener listener) {
                selListeners.add(listener);
        }
        
        /**
         * Removes the specified listener.
         * @param listener The <code>ListSelectionListener</code> to remove.
         */
        @Override
        public void
        removeListSelectionListener(ListSelectionListener listener) {
                selListeners.remove(listener);
        }
        
        /**
         * Invoked when the selection has changed.
         * This method implements <code>valueChanged</code>
         * method of the <code>ListSelectionListener</code> interface.
         * @param e A <code>ListSelectionEvent</code>
         * instance providing the event information.
         */
        @Override
        public void
        valueChanged(ListSelectionEvent e) {
                ListSelectionEvent e2 = null;
                for(ListSelectionListener l : selListeners) {
                        if(e2 == null) e2 = new ListSelectionEvent (
                                this,
                                e.getFirstIndex(),
                                e.getLastIndex(),
                                e.getValueIsAdjusting()
                        );
                        l.valueChanged(e2);
                }
        }
        
        protected ChannelList
        createChannelList() { return new ChannelList(); }
        
        protected ChannelListModel
        createChannelListModel() { return new ChannelListModel(); }
        
        @Override
        public void
        setSelectedChannel(JSChannel channel) {
                chnList.setSelectedComponent(channel, true);
        }
        
        /**
         * Adds new channel to this channels pane.
         * @param channelModel The sampler channel model to be used by the new channel.
         */
        @Override
        public void
        addChannel(SamplerChannelModel channelModel) {
                JSChannel channel = createChannel(channelModel);
                listModel.add(channel);
                chnList.setSelectedComponent(channel, true);
                scrollToBottom();
        }
        
        protected abstract JSChannel createChannel(SamplerChannelModel channelModel);
        
        /**
         * Adds the specified channels to this channels pane.
         * @param chns The channels to be added.
         */
        @Override
        public void
        addChannels(JSChannel[] chns) {
                if(chns == null || chns.length == 0) return;
                
                for(JSChannel c : chns) listModel.add(c);
                chnList.setSelectionInterval (
                        listModel.getSize() - chns.length, listModel.getSize() - 1
                );
                
                chnList.ensureIndexIsVisible(listModel.getSize() - 1);
        }
                
        /**
         * Removes the specified channel from this channels pane.
         * This method is invoked when a sampler channel is removed in the back-end.
         * @param chn The channel to be removed from this channels pane.
         */
        @Override
        public void
        removeChannel(JSChannel chn) { listModel.remove(chn); }
        
        /**
         * Gets the first channel in this channels pane.
         * @return The first channel in this channels pane or <code>null</code> if 
         * the channels pane is empty.
         */
        @Override
        public JSChannel
        getFirstChannel() { return listModel.size() == 0 ? null : listModel.get(0); }
        
        /**
         * Gets the last channel in this channels pane.
         * @return The last channel in this channels pane or <code>null</code> if 
         * the channels pane is empty.
         */
        @Override
        public JSChannel
        getLastChannel() {
                return listModel.size() == 0 ? null : listModel.get(listModel.size() - 1);
        }
        
        /**
         * Gets the channel at the specified index.
         * @return The channel at the specified index.
         * @throws ArrayIndexOutOfBoundsException If the index is out of range.
         */
        @Override
        public JSChannel
        getChannel(int idx) { return listModel.get(idx); }
        
        /**
         * Gets an array with all channels in this channels pane.
         * @return An array with all channels in this channels pane.
         */
        @Override
        public JSChannel[]
        getChannels() {
                JSChannel[] chns = new JSChannel[listModel.size()];
                for(int i = 0; i < listModel.size(); i++) chns[i] = listModel.get(i);
                return chns;
        }
        
        /**
         * Gets the number of channels in this channels pane.
         * @return The number of channels in this channels pane.
         */
        @Override
        public int
        getChannelCount() { return listModel.size(); }
        
        /**
         * Determines whether there is at least one selected channel.
         * @return <code>true</code> if there is at least one selected channel,
         * <code>false</code> otherwise.
         */
        @Override
        public boolean
        hasSelectedChannel() { return !chnList.isSelectionEmpty(); }
        
        /**
         * Gets the number of the selected channels.
         * @return The number of the selected channels.
         */
        @Override
        public int
        getSelectedChannelCount() { return chnList.getSelectedIndices().length; }
        
        /**
         * Gets an array with all selected channels.
         * The channels are sorted in increasing index order.
         * @return The selected channels or an empty array if nothing is selected.
         */
        @Override
        public JSChannel[]
        getSelectedChannels() {
                Component[] cS = chnList.getSelectedComponents();
                JSChannel[] chns = new JSChannel[cS.length];
                for(int i = 0; i < cS.length; i++) chns[i] = (JSChannel)cS[i];
                return chns;
        }
        
        /**
         * Removes all selected channels in this channels pane.
         * Notice that this method does not remove any channels in the back-end.
         * It is invoked after the channels are already removed in the back-end.
         * @return The number of removed channels.
         */
        @Override
        public int 
        removeSelectedChannels() {
                int[] l = chnList.getSelectedIndices();
                ComponentListModel model = chnList.getModel();
                
                for(;;) {
                        int i = chnList.getMinSelectionIndex();
                        if(i == -1) break;
                        model.remove(i);
                }
                
                return l.length;
        }
        
        /** Selects all channels. */
        @Override
        public void
        selectAll() { chnList.selectAll(); }
        
        /** Deselects all selected channels. */
        @Override
        public void
        clearSelection() { chnList.clearSelection(); }
        
        /**
         * Determines whether the channel list UI should be automatically updated
         * when channel is added/removed. The default value is <code>true</code>.
         * @see updateChannelListUI
         */
        @Override
        public boolean
        getAutoUpdate() { return chnList.getAutoUpdate(); }
        
        /**
         * Determines whether the channel list UI should be automatically updated
         * when channel is added/removed.
         * @see updateChannelListUI
         */
        @Override
        public void
        setAutoUpdate(boolean b) { chnList.setAutoUpdate(b); }
        
        /**
         * Updates the channel list UI.
         * @see setAutoUpdate
         */
        @Override
        public void
        updateChannelListUI() { chnList.updateList(); }
        
                
        @Override
        public void
        moveSelectedChannelsOnTop() {
                JSChannel[] chns = getSelectedChannels();
                        
                if(chns.length == 0) {
                        CC.getLogger().info("Can't move channel(s) at the beginning");
                        return;
                }
                
                for(int i = chns.length - 1; i >= 0; i--) {
                        listModel.remove(chns[i]);
                        listModel.insert(chns[i], 0);
                }
                
                chnList.setSelectionInterval(0, chns.length - 1);
                chnList.ensureIndexIsVisible(0);
        }
        
        @Override
        public void
        moveSelectedChannelsUp() {
                JSChannel[] chns = getSelectedChannels();
                        
                if(chns.length == 0 || chns[0] == getFirstChannel()) {
                        CC.getLogger().info("Can't move channel(s) up");
                        return;
                }
                
                for(int i = 0; i < chns.length; i++) listModel.moveUp(chns[i]);
                
                int[] si = chnList.getSelectedIndices();
                
                for(int i = 0; i < si.length; i++) si[i] -= 1;
                
                chnList.setSelectedIndices(si);
                chnList.ensureIndexIsVisible(si[0]);
        }
        
        @Override
        public void
        moveSelectedChannelsDown() {
                JSChannel[] chns = getSelectedChannels();
                        
                if(chns.length == 0 || chns[chns.length - 1] == getLastChannel()) {
                        CC.getLogger().info("Can't move channel(s) down");
                        return;
                }
                
                for(int i = chns.length - 1; i >= 0; i--) listModel.moveDown(chns[i]);
                
                int[] si = chnList.getSelectedIndices();
                for(int i = 0; i < si.length; i++) si[i] += 1;
                chnList.setSelectedIndices(si);
                chnList.ensureIndexIsVisible(si[si.length - 1]);
        }
        
        @Override
        public void
        moveSelectedChannelsAtBottom() {
                JSChannel[] chns = getSelectedChannels();
                        
                if(chns.length == 0) {
                        CC.getLogger().info("Can't move channel(s) at the end");
                        return;
                }
                
                for(int i =  0; i < chns.length; i++) {
                        listModel.remove(chns[i]);
                        listModel.add(chns[i]);
                }
                
                chnList.setSelectionInterval (
                        listModel.getSize() - chns.length, listModel.getSize() - 1
                );
                chnList.ensureIndexIsVisible(listModel.getSize() - 1);
        }
        
        @Override
        public void
        processChannelSelection(JSChannel c, boolean controlDown, boolean shiftDown) {
                if(c.isSelected() && !controlDown && !shiftDown) return;
                chnList.getUI().processSelectionEvent(c, controlDown, shiftDown);
        }
        
        private void
        scrollToBottom() {
                int h = scrollPane.getViewport().getView().getHeight();
                scrollPane.getViewport().scrollRectToVisible(new Rectangle(0, h - 2, 1, 1));
        }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2009 Grigor Iliev <grigor@grigoriliev.com>
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.view.std;
24
25
26	import java.awt.BorderLayout;
27	import java.awt.Component;
28	import java.awt.Rectangle;
29
30	import java.awt.event.KeyEvent;
31
32	import java.util.Vector;
33
34	import javax.swing.BorderFactory;
35	import javax.swing.JScrollPane;
36	import javax.swing.KeyStroke;
37	import javax.swing.ListSelectionModel;
38
39	import javax.swing.event.ListSelectionEvent;
40	import javax.swing.event.ListSelectionListener;
41
42	import net.sf.juife.ComponentList;
43	import net.sf.juife.ComponentListModel;
44	import net.sf.juife.DefaultComponentListModel;
45
46	import org.jsampler.CC;
47	import org.jsampler.SamplerChannelModel;
48
49	import org.jsampler.view.JSChannel;
50	import org.jsampler.view.JSChannelsPane;
51
52	import static javax.swing.KeyStroke.*;
53
54
55	/**
56	*
57	* @author Grigor Iliev
58	*/
59	public abstract class StdChannelsPane extends JSChannelsPane implements ListSelectionListener {
60	protected final ChannelList chnList = createChannelList();
61	protected final ChannelListModel listModel = createChannelListModel();
62
63	protected final JScrollPane scrollPane;
64
65	protected static class ChannelList extends ComponentList { }
66
67	protected static class ChannelListModel extends DefaultComponentListModel<JSChannel> { }
68
69	private final Vector<ListSelectionListener> selListeners = new Vector<ListSelectionListener>();
70
71	/**
72	* Creates a new instance of <code>StdChannelsPane</code> with
73	* the specified <code>title</code>.
74	* @param title The title of this <code>StdChannelsPane</code>
75	*/
76	public
77	StdChannelsPane(String title) {
78	super(title);
79
80	setLayout(new BorderLayout());
81
82	chnList.setOpaque(false);
83	//chnList.setLayoutOrientation(JList.HORIZONTAL_WRAP);
84	chnList.setModel(listModel);
85	chnList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
86
87	scrollPane = new JScrollPane(chnList);
88	scrollPane.setBorder(BorderFactory.createEmptyBorder());
89	add(scrollPane);
90
91	setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
92	installListeners();
93	}
94
95	protected void
96	installListeners() {
97	chnList.addListSelectionListener(this);
98
99	KeyStroke k = getKeyStroke(KeyEvent.VK_UP, KeyEvent.ALT_MASK \| KeyEvent.SHIFT_MASK);
100	getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsOnTop");
101	getActionMap().put("a4n.moveChannelsOnTop", getA4n().moveChannelsOnTop);
102
103	k = getKeyStroke(KeyEvent.VK_UP, KeyEvent.ALT_MASK);
104	getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsUp");
105	getActionMap().put("a4n.moveChannelsUp", getA4n().moveChannelsUp);
106
107	k = getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.ALT_MASK);
108	getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsDown");
109	getActionMap().put("a4n.moveChannelsDown", getA4n().moveChannelsDown);
110
111	k = getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.ALT_MASK \| KeyEvent.SHIFT_MASK);
112	getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, "a4n.moveChannelsAtBottom");
113	getActionMap().put("a4n.moveChannelsAtBottom", getA4n().moveChannelsAtBottom);
114
115	}
116
117	public StdA4n
118	getA4n() { return ((StdMainFrame)CC.getMainFrame()).getA4n(); }
119
120	/**
121	* Registers the specified listener for receiving list selection events.
122	* @param listener The <code>ListSelectionListener</code> to register.
123	*/
124	@Override
125	public void
126	addListSelectionListener(ListSelectionListener listener) {
127	selListeners.add(listener);
128	}
129
130	/**
131	* Removes the specified listener.
132	* @param listener The <code>ListSelectionListener</code> to remove.
133	*/
134	@Override
135	public void
136	removeListSelectionListener(ListSelectionListener listener) {
137	selListeners.remove(listener);
138	}
139
140	/**
141	* Invoked when the selection has changed.
142	* This method implements <code>valueChanged</code>
143	* method of the <code>ListSelectionListener</code> interface.
144	* @param e A <code>ListSelectionEvent</code>
145	* instance providing the event information.
146	*/
147	@Override
148	public void
149	valueChanged(ListSelectionEvent e) {
150	ListSelectionEvent e2 = null;
151	for(ListSelectionListener l : selListeners) {
152	if(e2 == null) e2 = new ListSelectionEvent (
153	this,
154	e.getFirstIndex(),
155	e.getLastIndex(),
156	e.getValueIsAdjusting()
157	);
158	l.valueChanged(e2);
159	}
160	}
161
162	protected ChannelList
163	createChannelList() { return new ChannelList(); }
164
165	protected ChannelListModel
166	createChannelListModel() { return new ChannelListModel(); }
167
168	@Override
169	public void
170	setSelectedChannel(JSChannel channel) {
171	chnList.setSelectedComponent(channel, true);
172	}
173
174	/**
175	* Adds new channel to this channels pane.
176	* @param channelModel The sampler channel model to be used by the new channel.
177	*/
178	@Override
179	public void
180	addChannel(SamplerChannelModel channelModel) {
181	JSChannel channel = createChannel(channelModel);
182	listModel.add(channel);
183	chnList.setSelectedComponent(channel, true);
184	scrollToBottom();
185	}
186
187	protected abstract JSChannel createChannel(SamplerChannelModel channelModel);
188
189	/**
190	* Adds the specified channels to this channels pane.
191	* @param chns The channels to be added.
192	*/
193	@Override
194	public void
195	addChannels(JSChannel[] chns) {
196	if(chns == null \|\| chns.length == 0) return;
197
198	for(JSChannel c : chns) listModel.add(c);
199	chnList.setSelectionInterval (
200	listModel.getSize() - chns.length, listModel.getSize() - 1
201	);
202
203	chnList.ensureIndexIsVisible(listModel.getSize() - 1);
204	}
205
206	/**
207	* Removes the specified channel from this channels pane.
208	* This method is invoked when a sampler channel is removed in the back-end.
209	* @param chn The channel to be removed from this channels pane.
210	*/
211	@Override
212	public void
213	removeChannel(JSChannel chn) { listModel.remove(chn); }
214
215	/**
216	* Gets the first channel in this channels pane.
217	* @return The first channel in this channels pane or <code>null</code> if
218	* the channels pane is empty.
219	*/
220	@Override
221	public JSChannel
222	getFirstChannel() { return listModel.size() == 0 ? null : listModel.get(0); }
223
224	/**
225	* Gets the last channel in this channels pane.
226	* @return The last channel in this channels pane or <code>null</code> if
227	* the channels pane is empty.
228	*/
229	@Override
230	public JSChannel
231	getLastChannel() {
232	return listModel.size() == 0 ? null : listModel.get(listModel.size() - 1);
233	}
234
235	/**
236	* Gets the channel at the specified index.
237	* @return The channel at the specified index.
238	* @throws ArrayIndexOutOfBoundsException If the index is out of range.
239	*/
240	@Override
241	public JSChannel
242	getChannel(int idx) { return listModel.get(idx); }
243
244	/**
245	* Gets an array with all channels in this channels pane.
246	* @return An array with all channels in this channels pane.
247	*/
248	@Override
249	public JSChannel[]
250	getChannels() {
251	JSChannel[] chns = new JSChannel[listModel.size()];
252	for(int i = 0; i < listModel.size(); i++) chns[i] = listModel.get(i);
253	return chns;
254	}
255
256	/**
257	* Gets the number of channels in this channels pane.
258	* @return The number of channels in this channels pane.
259	*/
260	@Override
261	public int
262	getChannelCount() { return listModel.size(); }
263
264	/**
265	* Determines whether there is at least one selected channel.
266	* @return <code>true</code> if there is at least one selected channel,
267	* <code>false</code> otherwise.
268	*/
269	@Override
270	public boolean
271	hasSelectedChannel() { return !chnList.isSelectionEmpty(); }
272
273	/**
274	* Gets the number of the selected channels.
275	* @return The number of the selected channels.
276	*/
277	@Override
278	public int
279	getSelectedChannelCount() { return chnList.getSelectedIndices().length; }
280
281	/**
282	* Gets an array with all selected channels.
283	* The channels are sorted in increasing index order.
284	* @return The selected channels or an empty array if nothing is selected.
285	*/
286	@Override
287	public JSChannel[]
288	getSelectedChannels() {
289	Component[] cS = chnList.getSelectedComponents();
290	JSChannel[] chns = new JSChannel[cS.length];
291	for(int i = 0; i < cS.length; i++) chns[i] = (JSChannel)cS[i];
292	return chns;
293	}
294
295	/**
296	* Removes all selected channels in this channels pane.
297	* Notice that this method does not remove any channels in the back-end.
298	* It is invoked after the channels are already removed in the back-end.
299	* @return The number of removed channels.
300	*/
301	@Override
302	public int
303	removeSelectedChannels() {
304	int[] l = chnList.getSelectedIndices();
305	ComponentListModel model = chnList.getModel();
306
307	for(;;) {
308	int i = chnList.getMinSelectionIndex();
309	if(i == -1) break;
310	model.remove(i);
311	}
312
313	return l.length;
314	}
315
316	/** Selects all channels. */
317	@Override
318	public void
319	selectAll() { chnList.selectAll(); }
320
321	/** Deselects all selected channels. */
322	@Override
323	public void
324	clearSelection() { chnList.clearSelection(); }
325
326	/**
327	* Determines whether the channel list UI should be automatically updated
328	* when channel is added/removed. The default value is <code>true</code>.
329	* @see updateChannelListUI
330	*/
331	@Override
332	public boolean
333	getAutoUpdate() { return chnList.getAutoUpdate(); }
334
335	/**
336	* Determines whether the channel list UI should be automatically updated
337	* when channel is added/removed.
338	* @see updateChannelListUI
339	*/
340	@Override
341	public void
342	setAutoUpdate(boolean b) { chnList.setAutoUpdate(b); }
343
344	/**
345	* Updates the channel list UI.
346	* @see setAutoUpdate
347	*/
348	@Override
349	public void
350	updateChannelListUI() { chnList.updateList(); }
351
352
353	@Override
354	public void
355	moveSelectedChannelsOnTop() {
356	JSChannel[] chns = getSelectedChannels();
357
358	if(chns.length == 0) {
359	CC.getLogger().info("Can't move channel(s) at the beginning");
360	return;
361	}
362
363	for(int i = chns.length - 1; i >= 0; i--) {
364	listModel.remove(chns[i]);
365	listModel.insert(chns[i], 0);
366	}
367
368	chnList.setSelectionInterval(0, chns.length - 1);
369	chnList.ensureIndexIsVisible(0);
370	}
371
372	@Override
373	public void
374	moveSelectedChannelsUp() {
375	JSChannel[] chns = getSelectedChannels();
376
377	if(chns.length == 0 \|\| chns[0] == getFirstChannel()) {
378	CC.getLogger().info("Can't move channel(s) up");
379	return;
380	}
381
382	for(int i = 0; i < chns.length; i++) listModel.moveUp(chns[i]);
383
384	int[] si = chnList.getSelectedIndices();
385
386	for(int i = 0; i < si.length; i++) si[i] -= 1;
387
388	chnList.setSelectedIndices(si);
389	chnList.ensureIndexIsVisible(si[0]);
390	}
391
392	@Override
393	public void
394	moveSelectedChannelsDown() {
395	JSChannel[] chns = getSelectedChannels();
396
397	if(chns.length == 0 \|\| chns[chns.length - 1] == getLastChannel()) {
398	CC.getLogger().info("Can't move channel(s) down");
399	return;
400	}
401
402	for(int i = chns.length - 1; i >= 0; i--) listModel.moveDown(chns[i]);
403
404	int[] si = chnList.getSelectedIndices();
405	for(int i = 0; i < si.length; i++) si[i] += 1;
406	chnList.setSelectedIndices(si);
407	chnList.ensureIndexIsVisible(si[si.length - 1]);
408	}
409
410	@Override
411	public void
412	moveSelectedChannelsAtBottom() {
413	JSChannel[] chns = getSelectedChannels();
414
415	if(chns.length == 0) {
416	CC.getLogger().info("Can't move channel(s) at the end");
417	return;
418	}
419
420	for(int i = 0; i < chns.length; i++) {
421	listModel.remove(chns[i]);
422	listModel.add(chns[i]);
423	}
424
425	chnList.setSelectionInterval (
426	listModel.getSize() - chns.length, listModel.getSize() - 1
427	);
428	chnList.ensureIndexIsVisible(listModel.getSize() - 1);
429	}
430
431	@Override
432	public void
433	processChannelSelection(JSChannel c, boolean controlDown, boolean shiftDown) {
434	if(c.isSelected() && !controlDown && !shiftDown) return;
435	chnList.getUI().processSelectionEvent(c, controlDown, shiftDown);
436	}
437
438	private void
439	scrollToBottom() {
440	int h = scrollPane.getViewport().getView().getHeight();
441	scrollPane.getViewport().scrollRectToVisible(new Rectangle(0, h - 2, 1, 1));
442	}
443	}