view/fantasia/ChannelsPane.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2007 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.fantasia;

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

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BoxLayout;
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;


/**
 *
 * @author Grigor Iliev
 */
public class ChannelsPane extends JSChannelsPane {
        private final ChannelListPane chnList = new ChannelListPane();
        private final DefaultComponentListModel listModel = new DefaultComponentListModel();
        
        private ActionListener listener;
        
        /**
         * Creates a new instance of <code>ChannelsPane</code> with
         * the specified <code>title</code>.
         * @param title The title of this <code>ChannelsPane</code>
         */
        public
        ChannelsPane(String title) {
                this(title, null);
        }
        
        /**
         * Creates a new instance of <code>ChannelsPane</code> with
         * the specified <code>title</code>.
         * @param title The title of this <code>ChannelsPane</code>
         * @param l A listener which is notified when a newly created
         * channel is fully expanded on the screen.
         */
        public
        ChannelsPane(String title, ActionListener l) {
                super(title);
                
                listener = l;
                
                setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
                
                chnList.setModel(listModel);
                chnList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                
                add(chnList);
        }
        
        class ChannelListPane extends ComponentList {
                public java.awt.Dimension
                getMaximumSize() { return getPreferredSize(); }
        }
        
        /**
         * Adds new channel to this channels pane.
         * @param channelModel The sampler channel model to be used by the new channel.
         */
        public void
        addChannel(SamplerChannelModel channelModel) {
                Channel channel = new Channel(channelModel, listener);
                listModel.add(channel);
                if(channel.getChannelInfo().getEngine() == null) channel.expandChannel(false);
                chnList.setSelectedComponent(channel, true);
        }
        
        /**
         * Adds the specified channels to this channels pane.
         * @param chns The channels to be added.
         */
        public void
        addChannels(JSChannel[] chns) {
                if(chns == null || chns.length == 0) return;
                
                for(JSChannel c : chns) listModel.add(c);
                
                chnList.setSelectedIndex(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.
         */
        public void
        removeChannel(JSChannel chn) {
                listModel.remove(chn);
        }
        
        /**
         * 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.
         */
        public boolean
        hasSelectedChannel() { return !chnList.isSelectionEmpty(); }
        
        /**
         * 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.
         */
        public JSChannel
        getFirstChannel() { return listModel.size() == 0 ? null : (JSChannel)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.
         */
        public JSChannel
        getLastChannel() {
                return listModel.size() == 0 ? null : (JSChannel)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.
         */
        public JSChannel
        getChannel(int idx) { return (JSChannel)listModel.get(idx); }
        
        /**
         * Gets an array of all channels in this channels pane.
         * @return An array of all channels in this channels pane.
         */
        public JSChannel[]
        getChannels() {
                JSChannel[] chns = new JSChannel[listModel.size()];
                for(int i = 0; i < listModel.size(); i++) chns[i] = (JSChannel)listModel.get(i);
                return chns;
        }
        
        /**
         * Gets the number of channels in this channels pane.
         * @return The number of channels in this channels pane.
         */
        public int
        getChannelCount() { return listModel.size(); }
        
        /**
         * Gets an array of all selected channels.
         * The channels are sorted in increasing index order.
         * @return The selected channels or an empty array if nothing is selected.
         */
        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;
        }
        
        /**
         * Gets the number of the selected channels.
         * @return The number of the selected channels.
         */
        public int
        getSelectedChannelCount() { return chnList.getSelectedIndices().length; }
        
        /**
         * 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.
         */
        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;
        }
        
        /**
         * Registers the specified listener for receiving list selection events.
         * @param listener The <code>ListSelectionListener</code> to register.
         */
        public void
        addListSelectionListener(ListSelectionListener listener) {
                listenerList.add(ListSelectionListener.class, listener);
        }
        
        /**
         * Removes the specified listener.
         * @param listener The <code>ListSelectionListener</code> to remove.
         */
        public void
        removeListSelectionListener(ListSelectionListener listener) {
                listenerList.remove(ListSelectionListener.class, listener);
        }
        
        /**
         * Determines whether the channel list UI should be automatically updated
         * when channel is added/removed. The default value is <code>true</code>.
         * @see updateChannelListUI
         */
        public boolean
        getAutoUpdate() { return chnList.getAutoUpdate(); }
        
        /**
         * Determines whether the channel list UI should be automatically updated
         * when channel is added/removed.
         * @see updateChannelListUI
         */
        public void
        setAutoUpdate(boolean b) { chnList.setAutoUpdate(b); }
        
        /**
         * Updates the channel list UI.
         * @see setAutoUpdate
         */
        public void
        updateChannelListUI() { chnList.updateList(); }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2007 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.fantasia;
24
25	import java.awt.BorderLayout;
26	import java.awt.Component;
27
28	import java.awt.event.ActionEvent;
29	import java.awt.event.ActionListener;
30
31	import javax.swing.BoxLayout;
32	import javax.swing.ListSelectionModel;
33
34	import javax.swing.event.ListSelectionEvent;
35	import javax.swing.event.ListSelectionListener;
36
37	import net.sf.juife.ComponentList;
38	import net.sf.juife.ComponentListModel;
39	import net.sf.juife.DefaultComponentListModel;
40
41	import org.jsampler.CC;
42	import org.jsampler.SamplerChannelModel;
43
44	import org.jsampler.view.JSChannel;
45	import org.jsampler.view.JSChannelsPane;
46
47
48	/**
49	*
50	* @author Grigor Iliev
51	*/
52	public class ChannelsPane extends JSChannelsPane {
53	private final ChannelListPane chnList = new ChannelListPane();
54	private final DefaultComponentListModel listModel = new DefaultComponentListModel();
55
56	private ActionListener listener;
57
58	/**
59	* Creates a new instance of <code>ChannelsPane</code> with
60	* the specified <code>title</code>.
61	* @param title The title of this <code>ChannelsPane</code>
62	*/
63	public
64	ChannelsPane(String title) {
65	this(title, null);
66	}
67
68	/**
69	* Creates a new instance of <code>ChannelsPane</code> with
70	* the specified <code>title</code>.
71	* @param title The title of this <code>ChannelsPane</code>
72	* @param l A listener which is notified when a newly created
73	* channel is fully expanded on the screen.
74	*/
75	public
76	ChannelsPane(String title, ActionListener l) {
77	super(title);
78
79	listener = l;
80
81	setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
82
83	chnList.setModel(listModel);
84	chnList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
85
86	add(chnList);
87	}
88
89	class ChannelListPane extends ComponentList {
90	public java.awt.Dimension
91	getMaximumSize() { return getPreferredSize(); }
92	}
93
94	/**
95	* Adds new channel to this channels pane.
96	* @param channelModel The sampler channel model to be used by the new channel.
97	*/
98	public void
99	addChannel(SamplerChannelModel channelModel) {
100	Channel channel = new Channel(channelModel, listener);
101	listModel.add(channel);
102	if(channel.getChannelInfo().getEngine() == null) channel.expandChannel(false);
103	chnList.setSelectedComponent(channel, true);
104	}
105
106	/**
107	* Adds the specified channels to this channels pane.
108	* @param chns The channels to be added.
109	*/
110	public void
111	addChannels(JSChannel[] chns) {
112	if(chns == null \|\| chns.length == 0) return;
113
114	for(JSChannel c : chns) listModel.add(c);
115
116	chnList.setSelectedIndex(listModel.getSize() - 1);
117	}
118
119	/**
120	* Removes the specified channel from this channels pane.
121	* This method is invoked when a sampler channel is removed in the back-end.
122	* @param chn The channel to be removed from this channels pane.
123	*/
124	public void
125	removeChannel(JSChannel chn) {
126	listModel.remove(chn);
127	}
128
129	/**
130	* Determines whether there is at least one selected channel.
131	* @return <code>true</code> if there is at least one selected channel,
132	* <code>false</code> otherwise.
133	*/
134	public boolean
135	hasSelectedChannel() { return !chnList.isSelectionEmpty(); }
136
137	/**
138	* Gets the first channel in this channels pane.
139	* @return The first channel in this channels pane or <code>null</code> if
140	* the channels pane is empty.
141	*/
142	public JSChannel
143	getFirstChannel() { return listModel.size() == 0 ? null : (JSChannel)listModel.get(0); }
144
145	/**
146	* Gets the last channel in this channels pane.
147	* @return The last channel in this channels pane or <code>null</code> if
148	* the channels pane is empty.
149	*/
150	public JSChannel
151	getLastChannel() {
152	return listModel.size() == 0 ? null : (JSChannel)listModel.get(listModel.size()-1);
153	}
154
155	/**
156	* Gets the channel at the specified index.
157	* @return The channel at the specified index.
158	* @throws ArrayIndexOutOfBoundsException If the index is out of range.
159	*/
160	public JSChannel
161	getChannel(int idx) { return (JSChannel)listModel.get(idx); }
162
163	/**
164	* Gets an array of all channels in this channels pane.
165	* @return An array of all channels in this channels pane.
166	*/
167	public JSChannel[]
168	getChannels() {
169	JSChannel[] chns = new JSChannel[listModel.size()];
170	for(int i = 0; i < listModel.size(); i++) chns[i] = (JSChannel)listModel.get(i);
171	return chns;
172	}
173
174	/**
175	* Gets the number of channels in this channels pane.
176	* @return The number of channels in this channels pane.
177	*/
178	public int
179	getChannelCount() { return listModel.size(); }
180
181	/**
182	* Gets an array of all selected channels.
183	* The channels are sorted in increasing index order.
184	* @return The selected channels or an empty array if nothing is selected.
185	*/
186	public JSChannel[]
187	getSelectedChannels() {
188	Component[] cS = chnList.getSelectedComponents();
189	JSChannel[] chns = new JSChannel[cS.length];
190	for(int i = 0; i < cS.length; i++) chns[i] = (JSChannel)cS[i];
191	return chns;
192	}
193
194	/**
195	* Gets the number of the selected channels.
196	* @return The number of the selected channels.
197	*/
198	public int
199	getSelectedChannelCount() { return chnList.getSelectedIndices().length; }
200
201	/**
202	* Removes all selected channels in this channels pane.
203	* Notice that this method does not remove any channels in the back-end.
204	* It is invoked after the channels are already removed in the back-end.
205	* @return The number of removed channels.
206	*/
207	public int
208	removeSelectedChannels() {
209	int[] l = chnList.getSelectedIndices();
210	ComponentListModel model = chnList.getModel();
211
212	for(;;) {
213	int i = chnList.getMinSelectionIndex();
214	if(i == -1) break;
215	model.remove(i);
216	}
217
218	return l.length;
219	}
220
221	/**
222	* Registers the specified listener for receiving list selection events.
223	* @param listener The <code>ListSelectionListener</code> to register.
224	*/
225	public void
226	addListSelectionListener(ListSelectionListener listener) {
227	listenerList.add(ListSelectionListener.class, listener);
228	}
229
230	/**
231	* Removes the specified listener.
232	* @param listener The <code>ListSelectionListener</code> to remove.
233	*/
234	public void
235	removeListSelectionListener(ListSelectionListener listener) {
236	listenerList.remove(ListSelectionListener.class, listener);
237	}
238
239	/**
240	* Determines whether the channel list UI should be automatically updated
241	* when channel is added/removed. The default value is <code>true</code>.
242	* @see updateChannelListUI
243	*/
244	public boolean
245	getAutoUpdate() { return chnList.getAutoUpdate(); }
246
247	/**
248	* Determines whether the channel list UI should be automatically updated
249	* when channel is added/removed.
250	* @see updateChannelListUI
251	*/
252	public void
253	setAutoUpdate(boolean b) { chnList.setAutoUpdate(b); }
254
255	/**
256	* Updates the channel list UI.
257	* @see setAutoUpdate
258	*/
259	public void
260	updateChannelListUI() { chnList.updateList(); }
261	}