android/view/AndroidChannelsPane.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.android.view;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.ArrayList;

import org.jsampler.SamplerChannelModel;
import org.jsampler.view.JSChannelsPane;
import org.jsampler.view.SessionViewConfig.ChannelConfig;

import android.view.View;

public abstract class AndroidChannelsPane<C extends AndroidChannel> implements JSChannelsPane<C> {
        private String title;
        private View   view = null;
        
        private final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
        
        protected final ArrayList<C> channels = new ArrayList<C>(); 
        
        /** Creates a new instance of <code>AndroidChannelsPane</code>. */
        public
        AndroidChannelsPane(String title) {
                this.title = title;
        }
        
        public abstract View createView();
        
        public View
        getView() {
                if(view == null) view = createView();
                return view;
        }
        
        /** Add a PropertyChangeListener to the listener list. */
        public void
        addPropertyChangeListener(PropertyChangeListener l) {
                propertyChangeSupport.addPropertyChangeListener(l);
        }
        
        /** Remove a PropertyChangeListener from the listener list. */
        public void
        removePropertyChangeListener(PropertyChangeListener l) {
                propertyChangeSupport.removePropertyChangeListener(l);
        }
        
        /** Add a PropertyChangeListener for a specific property. */
        public void
        addPropertyChangeListener(String propertyName, PropertyChangeListener l) {
                propertyChangeSupport.addPropertyChangeListener(propertyName, l);
        }
        
        /** Remove a PropertyChangeListener for a specific property. */
        public void
        removePropertyChangeListener(String propertyName, PropertyChangeListener l) {
                propertyChangeSupport.removePropertyChangeListener(propertyName, l);
        }
        
        /**
         * Report a bound property update to any registered listeners.
         * No event is fired if old and new are equal and non-null.
         */
        protected void
        firePropertyChange(String propertyName, Object oldValue, Object newValue) {
                propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
        }
        
        /**
         * Returns the title of this channels' pane.
         * @return The title of this channels' pane.
         */
        @Override
        public String
        getTitle() { return title; }
        
        /**
         * Sets the title of this channels' pane.
         * @param title The new title of this channels' pane.
         */
        @Override
        public void
        setTitle(String title) {
                if(this.title.equals(title)) return;
                
                String oldTitle = this.title;
                this.title = title;
                firePropertyChange(TITLE, oldTitle, title);
        }
        
        /**
         * Returns the title of this <code>JSChannelsPane</code>.
         * @return The title of this <code>JSChannelsPane</code>.
         */
        @Override
        public String
        toString() { return getTitle(); }
        
        /**
         * Adds new channel to this channels pane.
         * @param channelModel The sampler channel model to be used by the new channel.
         * @param config The view config of the sampler channel.
         */
        @Override
        public void
        addChannel(SamplerChannelModel channelModel, ChannelConfig config) {
                addChannel(channelModel);
        }
        
        /**
         * Adds the specified channels to this channels pane.
         * @param chns The channels to be added.
         */
        @Override
        public void
        addChannels(C[] chns) {
                if(chns == null || chns.length == 0) return;
                
                for(C c : chns) channels.add(c);
                firePropertyChange("channelsAdded", null, chns);
        }
        
        /**
         * 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(C chn) {
                channels.remove(chn);
                firePropertyChange("channelRemoved", null, 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 C
        getFirstChannel() { return channels.size() == 0 ? null : channels.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 C
        getLastChannel() {
                return channels.size() == 0 ? null : channels.get(channels.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 C
        getChannel(int idx) { return channels.get(idx); }
        
        /**
         * Gets the number of channels in this channels pane.
         * @return The number of channels in this channels pane.
         */
        @Override
        public int
        getChannelCount() { return channels.size(); }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2011 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.android.view;
24
25	import java.beans.PropertyChangeListener;
26	import java.beans.PropertyChangeSupport;
27	import java.util.ArrayList;
28
29	import org.jsampler.SamplerChannelModel;
30	import org.jsampler.view.JSChannelsPane;
31	import org.jsampler.view.SessionViewConfig.ChannelConfig;
32
33	import android.view.View;
34
35	public abstract class AndroidChannelsPane<C extends AndroidChannel> implements JSChannelsPane<C> {
36	private String title;
37	private View view = null;
38
39	private final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
40
41	protected final ArrayList<C> channels = new ArrayList<C>();
42
43	/** Creates a new instance of <code>AndroidChannelsPane</code>. */
44	public
45	AndroidChannelsPane(String title) {
46	this.title = title;
47	}
48
49	public abstract View createView();
50
51	public View
52	getView() {
53	if(view == null) view = createView();
54	return view;
55	}
56
57	/** Add a PropertyChangeListener to the listener list. */
58	public void
59	addPropertyChangeListener(PropertyChangeListener l) {
60	propertyChangeSupport.addPropertyChangeListener(l);
61	}
62
63	/** Remove a PropertyChangeListener from the listener list. */
64	public void
65	removePropertyChangeListener(PropertyChangeListener l) {
66	propertyChangeSupport.removePropertyChangeListener(l);
67	}
68
69	/** Add a PropertyChangeListener for a specific property. */
70	public void
71	addPropertyChangeListener(String propertyName, PropertyChangeListener l) {
72	propertyChangeSupport.addPropertyChangeListener(propertyName, l);
73	}
74
75	/** Remove a PropertyChangeListener for a specific property. */
76	public void
77	removePropertyChangeListener(String propertyName, PropertyChangeListener l) {
78	propertyChangeSupport.removePropertyChangeListener(propertyName, l);
79	}
80
81	/**
82	* Report a bound property update to any registered listeners.
83	* No event is fired if old and new are equal and non-null.
84	*/
85	protected void
86	firePropertyChange(String propertyName, Object oldValue, Object newValue) {
87	propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
88	}
89
90	/**
91	* Returns the title of this channels' pane.
92	* @return The title of this channels' pane.
93	*/
94	@Override
95	public String
96	getTitle() { return title; }
97
98	/**
99	* Sets the title of this channels' pane.
100	* @param title The new title of this channels' pane.
101	*/
102	@Override
103	public void
104	setTitle(String title) {
105	if(this.title.equals(title)) return;
106
107	String oldTitle = this.title;
108	this.title = title;
109	firePropertyChange(TITLE, oldTitle, title);
110	}
111
112	/**
113	* Returns the title of this <code>JSChannelsPane</code>.
114	* @return The title of this <code>JSChannelsPane</code>.
115	*/
116	@Override
117	public String
118	toString() { return getTitle(); }
119
120	/**
121	* Adds new channel to this channels pane.
122	* @param channelModel The sampler channel model to be used by the new channel.
123	* @param config The view config of the sampler channel.
124	*/
125	@Override
126	public void
127	addChannel(SamplerChannelModel channelModel, ChannelConfig config) {
128	addChannel(channelModel);
129	}
130
131	/**
132	* Adds the specified channels to this channels pane.
133	* @param chns The channels to be added.
134	*/
135	@Override
136	public void
137	addChannels(C[] chns) {
138	if(chns == null \|\| chns.length == 0) return;
139
140	for(C c : chns) channels.add(c);
141	firePropertyChange("channelsAdded", null, chns);
142	}
143
144	/**
145	* Removes the specified channel from this channels pane.
146	* This method is invoked when a sampler channel is removed in the back-end.
147	* @param chn The channel to be removed from this channels pane.
148	*/
149	@Override
150	public void
151	removeChannel(C chn) {
152	channels.remove(chn);
153	firePropertyChange("channelRemoved", null, chn);
154	}
155
156	/**
157	* Gets the first channel in this channels pane.
158	* @return The first channel in this channels pane or <code>null</code> if
159	* the channels pane is empty.
160	*/
161	@Override
162	public C
163	getFirstChannel() { return channels.size() == 0 ? null : channels.get(0); }
164
165	/**
166	* Gets the last channel in this channels pane.
167	* @return The last channel in this channels pane or <code>null</code> if
168	* the channels pane is empty.
169	*/
170	@Override
171	public C
172	getLastChannel() {
173	return channels.size() == 0 ? null : channels.get(channels.size() - 1);
174	}
175
176	/**
177	* Gets the channel at the specified index.
178	* @return The channel at the specified index.
179	* @throws ArrayIndexOutOfBoundsException If the index is out of range.
180	*/
181	@Override
182	public C
183	getChannel(int idx) { return channels.get(idx); }
184
185	/**
186	* Gets the number of channels in this channels pane.
187	* @return The number of channels in this channels pane.
188	*/
189	@Override
190	public int
191	getChannelCount() { return channels.size(); }
192	}