org/jsampler/SamplerModel.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2006 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;

import org.jsampler.event.ListListener;
import org.jsampler.event.MidiDeviceListListener;
import org.jsampler.event.SamplerChannelListListener;
import org.jsampler.event.SamplerListener;

import org.linuxsampler.lscp.*;


/**
 * A data model representing a sampler.
 * Note that the setter methods does <b>not</b> alter any settings
 * on the backend side unless otherwise specified.
 * @author Grigor Iliev
 */
public interface SamplerModel {
        /**
         * Registers the specified listener for receiving event messages.
         * @param l The <code>SamplerListener</code> to register.
         */
        public void addSamplerListener(SamplerListener l);
        
        /**
         * Removes the specified listener.
         * @param l The <code>SamplerListener</code> to remove.
         */
        public void removeSamplerListener(SamplerListener l);
        
        /**
         * Registers the specified listener for receiving event messages.
         * @param listener The <code>ListListener</code> to register.
         */
        public void addAudioDeviceListListener(ListListener<AudioDeviceModel> listener);
        
        /**
         * Removes the specified listener.
         * @param listener The <code>ListListener</code> to remove.
         */
        public void removeAudioDeviceListListener(ListListener<AudioDeviceModel> listener);
        
        /**
         * Registers the specified listener for receiving event messages.
         * @param listener The <code>MidiDeviceListListener</code> to register.
         */
        public void addMidiDeviceListListener(MidiDeviceListListener listener);
        
        /**
         * Removes the specified listener.
         * @param listener The <code>MidiDeviceListListener</code> to remove.
         */
        public void removeMidiDeviceListListener(MidiDeviceListListener listener);
        
        /**
         * Registers the specified listener for receiving event messages.
         * @param listener The <code>ListListener</code> to register.
         */
        public void addMidiInstrumentMapListListener(ListListener<MidiInstrumentMap> listener);
        
        /**
         * Removes the specified listener.
         * @param listener The <code>ListListener</code> to remove.
         */
        public void removeMidiInstrumentMapListListener(ListListener<MidiInstrumentMap> listener);
        
        /**
         * Registers the specified listener for receiving event messages.
         * @param listener The <code>SamplerChannelListListener</code> to register.
         */
        public void addSamplerChannelListListener(SamplerChannelListListener listener);
        
        /**
         * Removes the specified listener.
         * @param listener The <code>SamplerChannelListListener</code> to remove.
         */
        public void removeSamplerChannelListListener(SamplerChannelListListener listener);
        
        /**
         * Gets information about the LinuxSampler instance the front-end is connected to.
         * 
         * @return <code>ServerInfo</code> instance containing
         * information about the LinuxSampler instance the front-end is connected to.
         */
        public ServerInfo getServerInfo();
        
        /**
         * Gets all audio output drivers currently available for the LinuxSampler instance.
         * 
         * @return <code>AudioOutputDriver</code> array containing all audio output drivers
         * currently available for the LinuxSampler instance.
         */
        public AudioOutputDriver[] getAudioOutputDrivers();
        
        /**
         * Gets the model of the audio device with ID <code>deviceId</code>.
         * @param deviceId The ID of the audio device whose model should be obtained.
         * @return The model of the specified audio device or <code>null</code> 
         * if there is no audio device with ID <code>deviceId</code>.
         */
        public AudioDeviceModel getAudioDeviceModel(int deviceId);
        
        /**
         * Gets the current number of audio devices.
         * @return The current number of audio devices.
         */
        public int getAudioDeviceCount();
        
        /**
         * Gets the current list of audio device models.
         * @return The current list of audio device models.
         */
        public AudioDeviceModel[] getAudioDeviceModels();
        
        /**
         * Adds the specified audio device.
         * @param device The audio device to be added.
         */
        public void addAudioDevice(AudioOutputDevice device);
        
        /**
         * Removes the specified audio device.
         * @param deviceId The ID of the audio device to be removed.
         * @return <code>true</code> if the audio device is removed successfully, <code>false</code>
         * if the device list does not contain audio device with ID <code>deviceId</code>.
         */
        public boolean removeAudioDevice(int deviceId);
        
        /**
         * Removes (on the backend side) the specified audio device.
         * @param deviceId The ID of the audio device to be removed.
         */
        public void removeBackendAudioDevice(int deviceId);
        
        /**
         * Gets all MIDI input drivers currently available for the LinuxSampler instance.
         * 
         * @return <code>MidiInputDriver</code> array containing all MIDI input drivers currently 
         * available for the LinuxSampler instance.
         */
        public MidiInputDriver[] getMidiInputDrivers();
        
        /**
         * Gets the model of the MIDI device with ID <code>deviceId</code>.
         * @param deviceId The ID of the MIDI device whose model should be obtained.
         * @return The model of the specified MIDI device or <code>null</code> 
         * if there is no MIDI device with ID <code>deviceId</code>.
         */
        public MidiDeviceModel getMidiDeviceModel(int deviceId);
        
        /**
         * Gets the current number of MIDI input devices.
         * @return The current number of MIDI input devices.
         */
        public int getMidiDeviceCount();
        
        /**
         * Gets the current list of MIDI device models.
         * @return The current list of MIDI device models.
         */
        public MidiDeviceModel[] getMidiDeviceModels();
        
        /**
         * Adds the specified MIDI device.
         * @param device The MIDI device to be added.
         */
        public void addMidiDevice(MidiInputDevice device);
        
        /**
         * Schedules a new task for adding new MIDI device.
         * @param driver The desired MIDI input system.
         * @param parameters An optional list of driver specific parameters.
         */
        public void addBackendMidiDevice(String driver, Parameter... parameters);
        
        /**
         * Removes the specified MIDI device.
         * @param deviceId The ID of the MIDI device to be removed.
         * @return <code>true</code> if the MIDI device is removed successfully, <code>false</code>
         * if the device list does not contain MIDI device with ID <code>deviceId</code>.
         */
        public boolean removeMidiDevice(int deviceId);
        
        /**
         * Schedules a new task for removing the specified MIDI device.
         * @param deviceId The ID of the MIDI input device to be destroyed.
         */
        public void removeBackendMidiDevice(int deviceId);
        
        /**
         * Gets the MIDI instrument map with ID <code>mapId</code>.
         * @param mapId The ID of the MIDI instrument map to obtain.
         * @return The MIDI instrument map with the specified ID or <code>null</code> 
         * if there is no MIDI instrument map with ID <code>mapId</code>.
         */
        public MidiInstrumentMap getMidiInstrumentMapById(int mapId);
        
        /**
         * Gets the MIDI instrument map at the specified position.
         * @param index The position of the MIDI instrument map to return.
         * @return The MIDI instrument map at the specified position.
         */
        public MidiInstrumentMap getMidiInstrumentMap(int index);
        
        /**
         * Gets the current number of MIDI instrument maps.
         * @return The current number of MIDI instrument maps.
         */
        public int getMidiInstrumentMapCount();
        
        /**
         * Gets the current list of MIDI instrument maps.
         * @return The current list of MIDI instrument maps.
         */
        public MidiInstrumentMap[] getMidiInstrumentMaps();
        
        /**
         * Adds the specified MIDI instrument map.
         * @param map The MIDI instrument map to be added.
         */
        public void addMidiInstrumentMap(MidiInstrumentMap map);
        
        /**
         * Schedules a new task for creating a new MIDI instrument map on the backend side.
         * @param name The name of the MIDI instrument map.
         * @throws IllegalArgumentException If <code>name</code> is <code>null</code>.
         */
        public void addBackendMidiInstrumentMap(String name);
        
        /**
         * Removes the specified MIDI instrument map.
         * @param mapId The ID of the MIDI instrument map to be removed.
         * @return <code>true</code> if the MIDI instrument map is removed successfully,
         * <code>false</code> if the MIDI instrument map's list does not contain
         * MIDI instrument map with ID <code>mapId</code>.
         */
        public boolean removeMidiInstrumentMap(int mapId);
        
        /** Removes all MIDI instrument maps. */
        public void removeAllMidiInstrumentMaps();
        
        /**
         * Schedules a new task for removing the
         * specified MIDI instrument map on the backend side.
         * @param mapId The numerical ID of the MIDI instrument map to remove.
         * @throws IllegalArgumentException If <code>mapId</code> is negative.
         */
        public void removeBackendMidiInstrumentMap(int mapId);
        
        /**
         * Schedules a new task for changing the name of
         * the specified MIDI instrument map on the backend side.
         * @param mapId The numerical ID of the MIDI instrument map.
         * @param name The new name for the specified MIDI instrument map.
         */
        public void setBackendMidiInstrumentMapName(int mapId, String name);
        
        /**
         * Gets the default MIDI instrument map.
         * @return The default MIDI instrument map or <code>null</code>
         * if there are no maps created.
         */
        public MidiInstrumentMap getDefaultMidiInstrumentMap();
        
        /**
         * Schedules a new task for mapping a MIDI instrument on the backend side.
         * @param mapId The id of the MIDI instrument map.
         * @param bank The index of the MIDI bank, which shall contain the instrument.
         * @param program The MIDI program number of the new instrument.
         * @param instrInfo Provides the MIDI instrument settings.
         */
        public void
        mapBackendMidiInstrument(int mapId, int bank, int program, MidiInstrumentInfo instrInfo);
        
        /**
         * Schedules a new task for removing a MIDI instrument on the backend side.
         * @param mapId The id of the MIDI instrument map containing the instrument to be removed.
         * @param bank The index of the MIDI bank containing the instrument to be removed.
         * @param program The MIDI program number of the instrument to be removed.
         */
        public void unmapBackendMidiInstrument(int mapId, int bank, int program);
        
        /**
         * Gets a list of all available engines.
         * @return A list of all available engines.
         */
        public SamplerEngine[] getEngines();
        
        /**
         * Gets the current list of sampler channel models.
         * @return The current list of sampler channel models.
         */
        public SamplerChannelModel[] getChannelModels();
        
        /**
         * Gets the model of the sampler channel with ID <code>channelId</code>.
         * @param channelId The ID of the sampler channel whose model should be obtained.
         * @return The model of the specified sampler channel or <code>null</code> 
         * if there is no channel with ID <code>channelId</code>.
         */
        public SamplerChannelModel getChannelModel(int channelId);
        
        /**
         * Gets the current number of sampler channels.
         * @return The current number of sampler channels.
         */
        public int getChannelCount();
        
        /**
         * Adds a new sampler channel on the backend side. The channel will
         * be actually added to this model when the backend notifies for its creation.
         * @see #addChannel
         */
        public void addBackendChannel();
        
        /**
         * Adds the specified sampler channel.
         * @param channel The channel to be added.
         */
        public void addChannel(SamplerChannel channel);
        
        /**
         * Removes the specified sampler channel.
         * Note that this method doesn't remove the channel in the backend,
         * it is used to remove the channel from the model when those channel
         * is removed in the backend.
         * @param channelId The ID of the channel to be removed.
         * @return <code>true</code> if the channel is removed successfully, <code>false</code>
         * if the channel's list does not contain channel with ID <code>channelId</code>.
         */
        public boolean removeChannel(int channelId);
        
        /**
         * Schedules a new task for removing the specified sampler channel on the backend side.
         * @param channelId The ID of the channel to be removed.
         */
        public void removeBackendChannel(int channelId);
        
        /**
         * Updates the settings of the specified channel.
         * @param channel A <code>SamplerChannel</code> instance containing the new settings
         * for the channel.
         */
        public void updateChannel(SamplerChannel channel);
        
        /**
         * Determines whether there is at least one solo channel in the current list
         * of sampler channels.
         * @return <code>true</code> if there is at least one solo channel in the current list of 
         * sampler channels, <code>false</code> otherwise.
         */
        public boolean hasSoloChannel();
        
        /**
         * Gets the number of solo channels in the current list of sampler channels.
         * @return The number of solo channels in the current list of sampler channels.
         */
        public int getSoloChannelCount();
        
        /**
         * Gets the number of muted channels in the current list of sampler channels.
         * This number includes the channels muted because of the presence of a solo channel.
         * @return The number of muted channels in the current list of sampler channels.
         */
        public int getMutedChannelCount();
        
        /**
         * Gets the number of channels muted because of the presence of a solo channel.
         * @return The number of channels muted because of the presence of a solo channel.
         */
        public int getMutedBySoloChannelCount();
        
        /**
         * Gets the total number of active voices.
         * @return The total number of active voices.
         */
        public int getTotalVoiceCount();
        
        /**
         * Gets the maximum number of active voices.
         * @return The maximum number of active voices.
         */
        public int getTotalVoiceCountMax();
        
        /**
         * Gets the golobal volume of the sampler.
         * @return The golobal volume of the sampler.
         */
        public float getVolume();
        
        /**
         * Sets the global volume.
         * @param volume The new volume value.
         */
        public void setVolume(float volume);
        
        /**
         * Sets the global volume on the backend side.
         * @param volume The new volume value.
         */
        public void setBackendVolume(float volume);
        
        /**
         * Schedules a new task for resetting the sampler.
         */
        public void resetBackend();
        
        /**
         * Updates the current and the maximum number of active voices in the sampler.
         * @param count The new number of active voices.
         * @param countMax The maximum number of active voices.
         */
        public void updateActiveVoiceInfo(int count, int countMax);
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2006 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;
24
25	import org.jsampler.event.ListListener;
26	import org.jsampler.event.MidiDeviceListListener;
27	import org.jsampler.event.SamplerChannelListListener;
28	import org.jsampler.event.SamplerListener;
29
30	import org.linuxsampler.lscp.*;
31
32
33	/**
34	* A data model representing a sampler.
35	* Note that the setter methods does <b>not</b> alter any settings
36	* on the backend side unless otherwise specified.
37	* @author Grigor Iliev
38	*/
39	public interface SamplerModel {
40	/**
41	* Registers the specified listener for receiving event messages.
42	* @param l The <code>SamplerListener</code> to register.
43	*/
44	public void addSamplerListener(SamplerListener l);
45
46	/**
47	* Removes the specified listener.
48	* @param l The <code>SamplerListener</code> to remove.
49	*/
50	public void removeSamplerListener(SamplerListener l);
51
52	/**
53	* Registers the specified listener for receiving event messages.
54	* @param listener The <code>ListListener</code> to register.
55	*/
56	public void addAudioDeviceListListener(ListListener<AudioDeviceModel> listener);
57
58	/**
59	* Removes the specified listener.
60	* @param listener The <code>ListListener</code> to remove.
61	*/
62	public void removeAudioDeviceListListener(ListListener<AudioDeviceModel> listener);
63
64	/**
65	* Registers the specified listener for receiving event messages.
66	* @param listener The <code>MidiDeviceListListener</code> to register.
67	*/
68	public void addMidiDeviceListListener(MidiDeviceListListener listener);
69
70	/**
71	* Removes the specified listener.
72	* @param listener The <code>MidiDeviceListListener</code> to remove.
73	*/
74	public void removeMidiDeviceListListener(MidiDeviceListListener listener);
75
76	/**
77	* Registers the specified listener for receiving event messages.
78	* @param listener The <code>ListListener</code> to register.
79	*/
80	public void addMidiInstrumentMapListListener(ListListener<MidiInstrumentMap> listener);
81
82	/**
83	* Removes the specified listener.
84	* @param listener The <code>ListListener</code> to remove.
85	*/
86	public void removeMidiInstrumentMapListListener(ListListener<MidiInstrumentMap> listener);
87
88	/**
89	* Registers the specified listener for receiving event messages.
90	* @param listener The <code>SamplerChannelListListener</code> to register.
91	*/
92	public void addSamplerChannelListListener(SamplerChannelListListener listener);
93
94	/**
95	* Removes the specified listener.
96	* @param listener The <code>SamplerChannelListListener</code> to remove.
97	*/
98	public void removeSamplerChannelListListener(SamplerChannelListListener listener);
99
100	/**
101	* Gets information about the LinuxSampler instance the front-end is connected to.
102	*
103	* @return <code>ServerInfo</code> instance containing
104	* information about the LinuxSampler instance the front-end is connected to.
105	*/
106	public ServerInfo getServerInfo();
107
108	/**
109	* Gets all audio output drivers currently available for the LinuxSampler instance.
110	*
111	* @return <code>AudioOutputDriver</code> array containing all audio output drivers
112	* currently available for the LinuxSampler instance.
113	*/
114	public AudioOutputDriver[] getAudioOutputDrivers();
115
116	/**
117	* Gets the model of the audio device with ID <code>deviceId</code>.
118	* @param deviceId The ID of the audio device whose model should be obtained.
119	* @return The model of the specified audio device or <code>null</code>
120	* if there is no audio device with ID <code>deviceId</code>.
121	*/
122	public AudioDeviceModel getAudioDeviceModel(int deviceId);
123
124	/**
125	* Gets the current number of audio devices.
126	* @return The current number of audio devices.
127	*/
128	public int getAudioDeviceCount();
129
130	/**
131	* Gets the current list of audio device models.
132	* @return The current list of audio device models.
133	*/
134	public AudioDeviceModel[] getAudioDeviceModels();
135
136	/**
137	* Adds the specified audio device.
138	* @param device The audio device to be added.
139	*/
140	public void addAudioDevice(AudioOutputDevice device);
141
142	/**
143	* Removes the specified audio device.
144	* @param deviceId The ID of the audio device to be removed.
145	* @return <code>true</code> if the audio device is removed successfully, <code>false</code>
146	* if the device list does not contain audio device with ID <code>deviceId</code>.
147	*/
148	public boolean removeAudioDevice(int deviceId);
149
150	/**
151	* Removes (on the backend side) the specified audio device.
152	* @param deviceId The ID of the audio device to be removed.
153	*/
154	public void removeBackendAudioDevice(int deviceId);
155
156	/**
157	* Gets all MIDI input drivers currently available for the LinuxSampler instance.
158	*
159	* @return <code>MidiInputDriver</code> array containing all MIDI input drivers currently
160	* available for the LinuxSampler instance.
161	*/
162	public MidiInputDriver[] getMidiInputDrivers();
163
164	/**
165	* Gets the model of the MIDI device with ID <code>deviceId</code>.
166	* @param deviceId The ID of the MIDI device whose model should be obtained.
167	* @return The model of the specified MIDI device or <code>null</code>
168	* if there is no MIDI device with ID <code>deviceId</code>.
169	*/
170	public MidiDeviceModel getMidiDeviceModel(int deviceId);
171
172	/**
173	* Gets the current number of MIDI input devices.
174	* @return The current number of MIDI input devices.
175	*/
176	public int getMidiDeviceCount();
177
178	/**
179	* Gets the current list of MIDI device models.
180	* @return The current list of MIDI device models.
181	*/
182	public MidiDeviceModel[] getMidiDeviceModels();
183
184	/**
185	* Adds the specified MIDI device.
186	* @param device The MIDI device to be added.
187	*/
188	public void addMidiDevice(MidiInputDevice device);
189
190	/**
191	* Schedules a new task for adding new MIDI device.
192	* @param driver The desired MIDI input system.
193	* @param parameters An optional list of driver specific parameters.
194	*/
195	public void addBackendMidiDevice(String driver, Parameter... parameters);
196
197	/**
198	* Removes the specified MIDI device.
199	* @param deviceId The ID of the MIDI device to be removed.
200	* @return <code>true</code> if the MIDI device is removed successfully, <code>false</code>
201	* if the device list does not contain MIDI device with ID <code>deviceId</code>.
202	*/
203	public boolean removeMidiDevice(int deviceId);
204
205	/**
206	* Schedules a new task for removing the specified MIDI device.
207	* @param deviceId The ID of the MIDI input device to be destroyed.
208	*/
209	public void removeBackendMidiDevice(int deviceId);
210
211	/**
212	* Gets the MIDI instrument map with ID <code>mapId</code>.
213	* @param mapId The ID of the MIDI instrument map to obtain.
214	* @return The MIDI instrument map with the specified ID or <code>null</code>
215	* if there is no MIDI instrument map with ID <code>mapId</code>.
216	*/
217	public MidiInstrumentMap getMidiInstrumentMapById(int mapId);
218
219	/**
220	* Gets the MIDI instrument map at the specified position.
221	* @param index The position of the MIDI instrument map to return.
222	* @return The MIDI instrument map at the specified position.
223	*/
224	public MidiInstrumentMap getMidiInstrumentMap(int index);
225
226	/**
227	* Gets the current number of MIDI instrument maps.
228	* @return The current number of MIDI instrument maps.
229	*/
230	public int getMidiInstrumentMapCount();
231
232	/**
233	* Gets the current list of MIDI instrument maps.
234	* @return The current list of MIDI instrument maps.
235	*/
236	public MidiInstrumentMap[] getMidiInstrumentMaps();
237
238	/**
239	* Adds the specified MIDI instrument map.
240	* @param map The MIDI instrument map to be added.
241	*/
242	public void addMidiInstrumentMap(MidiInstrumentMap map);
243
244	/**
245	* Schedules a new task for creating a new MIDI instrument map on the backend side.
246	* @param name The name of the MIDI instrument map.
247	* @throws IllegalArgumentException If <code>name</code> is <code>null</code>.
248	*/
249	public void addBackendMidiInstrumentMap(String name);
250
251	/**
252	* Removes the specified MIDI instrument map.
253	* @param mapId The ID of the MIDI instrument map to be removed.
254	* @return <code>true</code> if the MIDI instrument map is removed successfully,
255	* <code>false</code> if the MIDI instrument map's list does not contain
256	* MIDI instrument map with ID <code>mapId</code>.
257	*/
258	public boolean removeMidiInstrumentMap(int mapId);
259
260	/** Removes all MIDI instrument maps. */
261	public void removeAllMidiInstrumentMaps();
262
263	/**
264	* Schedules a new task for removing the
265	* specified MIDI instrument map on the backend side.
266	* @param mapId The numerical ID of the MIDI instrument map to remove.
267	* @throws IllegalArgumentException If <code>mapId</code> is negative.
268	*/
269	public void removeBackendMidiInstrumentMap(int mapId);
270
271	/**
272	* Schedules a new task for changing the name of
273	* the specified MIDI instrument map on the backend side.
274	* @param mapId The numerical ID of the MIDI instrument map.
275	* @param name The new name for the specified MIDI instrument map.
276	*/
277	public void setBackendMidiInstrumentMapName(int mapId, String name);
278
279	/**
280	* Gets the default MIDI instrument map.
281	* @return The default MIDI instrument map or <code>null</code>
282	* if there are no maps created.
283	*/
284	public MidiInstrumentMap getDefaultMidiInstrumentMap();
285
286	/**
287	* Schedules a new task for mapping a MIDI instrument on the backend side.
288	* @param mapId The id of the MIDI instrument map.
289	* @param bank The index of the MIDI bank, which shall contain the instrument.
290	* @param program The MIDI program number of the new instrument.
291	* @param instrInfo Provides the MIDI instrument settings.
292	*/
293	public void
294	mapBackendMidiInstrument(int mapId, int bank, int program, MidiInstrumentInfo instrInfo);
295
296	/**
297	* Schedules a new task for removing a MIDI instrument on the backend side.
298	* @param mapId The id of the MIDI instrument map containing the instrument to be removed.
299	* @param bank The index of the MIDI bank containing the instrument to be removed.
300	* @param program The MIDI program number of the instrument to be removed.
301	*/
302	public void unmapBackendMidiInstrument(int mapId, int bank, int program);
303
304	/**
305	* Gets a list of all available engines.
306	* @return A list of all available engines.
307	*/
308	public SamplerEngine[] getEngines();
309
310	/**
311	* Gets the current list of sampler channel models.
312	* @return The current list of sampler channel models.
313	*/
314	public SamplerChannelModel[] getChannelModels();
315
316	/**
317	* Gets the model of the sampler channel with ID <code>channelId</code>.
318	* @param channelId The ID of the sampler channel whose model should be obtained.
319	* @return The model of the specified sampler channel or <code>null</code>
320	* if there is no channel with ID <code>channelId</code>.
321	*/
322	public SamplerChannelModel getChannelModel(int channelId);
323
324	/**
325	* Gets the current number of sampler channels.
326	* @return The current number of sampler channels.
327	*/
328	public int getChannelCount();
329
330	/**
331	* Adds a new sampler channel on the backend side. The channel will
332	* be actually added to this model when the backend notifies for its creation.
333	* @see #addChannel
334	*/
335	public void addBackendChannel();
336
337	/**
338	* Adds the specified sampler channel.
339	* @param channel The channel to be added.
340	*/
341	public void addChannel(SamplerChannel channel);
342
343	/**
344	* Removes the specified sampler channel.
345	* Note that this method doesn't remove the channel in the backend,
346	* it is used to remove the channel from the model when those channel
347	* is removed in the backend.
348	* @param channelId The ID of the channel to be removed.
349	* @return <code>true</code> if the channel is removed successfully, <code>false</code>
350	* if the channel's list does not contain channel with ID <code>channelId</code>.
351	*/
352	public boolean removeChannel(int channelId);
353
354	/**
355	* Schedules a new task for removing the specified sampler channel on the backend side.
356	* @param channelId The ID of the channel to be removed.
357	*/
358	public void removeBackendChannel(int channelId);
359
360	/**
361	* Updates the settings of the specified channel.
362	* @param channel A <code>SamplerChannel</code> instance containing the new settings
363	* for the channel.
364	*/
365	public void updateChannel(SamplerChannel channel);
366
367	/**
368	* Determines whether there is at least one solo channel in the current list
369	* of sampler channels.
370	* @return <code>true</code> if there is at least one solo channel in the current list of
371	* sampler channels, <code>false</code> otherwise.
372	*/
373	public boolean hasSoloChannel();
374
375	/**
376	* Gets the number of solo channels in the current list of sampler channels.
377	* @return The number of solo channels in the current list of sampler channels.
378	*/
379	public int getSoloChannelCount();
380
381	/**
382	* Gets the number of muted channels in the current list of sampler channels.
383	* This number includes the channels muted because of the presence of a solo channel.
384	* @return The number of muted channels in the current list of sampler channels.
385	*/
386	public int getMutedChannelCount();
387
388	/**
389	* Gets the number of channels muted because of the presence of a solo channel.
390	* @return The number of channels muted because of the presence of a solo channel.
391	*/
392	public int getMutedBySoloChannelCount();
393
394	/**
395	* Gets the total number of active voices.
396	* @return The total number of active voices.
397	*/
398	public int getTotalVoiceCount();
399
400	/**
401	* Gets the maximum number of active voices.
402	* @return The maximum number of active voices.
403	*/
404	public int getTotalVoiceCountMax();
405
406	/**
407	* Gets the golobal volume of the sampler.
408	* @return The golobal volume of the sampler.
409	*/
410	public float getVolume();
411
412	/**
413	* Sets the global volume.
414	* @param volume The new volume value.
415	*/
416	public void setVolume(float volume);
417
418	/**
419	* Sets the global volume on the backend side.
420	* @param volume The new volume value.
421	*/
422	public void setBackendVolume(float volume);
423
424	/**
425	* Schedules a new task for resetting the sampler.
426	*/
427	public void resetBackend();
428
429	/**
430	* Updates the current and the maximum number of active voices in the sampler.
431	* @param count The new number of active voices.
432	* @param countMax The maximum number of active voices.
433	*/
434	public void updateActiveVoiceInfo(int count, int countMax);
435	}