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music-synthesizer-for-android/core/src/com/levien/synthesizer/core/midi/MidiListener.java

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/*
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.levien.synthesizer.core.midi;
/**
* An interface for listening for any kind of midi event.
* @see MidiAdapter
*/
public interface MidiListener {
// Control events.
void onNoteOff(int channel, int note, int velocity);
void onNoteOn(int channel, int note, int velocity);
void onNoteAftertouch(int channel, int note, int aftertouch);
void onController(int channel, int control, int value);
void onProgramChange(int channel, int program);
void onChannelAftertouch(int channel, int aftertouch);
void onPitchBend(int channel, int value);
// Other events.
void onTimingClock();
void onActiveSensing();
// Meta events.
// The events that have "byte[] text" are _probably_ encoded as ISO-8859-1.
void onSequenceNumber(int sequenceNumber);
void onText(byte[] text);
void onCopyrightNotice(byte[] text);
void onSequenceName(byte[] text);
void onInstrumentName(byte[] text);
void onLyrics(byte[] text);
void onMarker(byte[] text);
void onCuePoint(byte[] text);
void onChannelPrefix(int channel);
void onPort(byte[] data); // TODO(klimt): Decode this.
void onEndOfTrack();
void onSetTempo(int microsecondsPerQuarterNote);
void onSmpteOffset(byte[] data); // TODO(klimt): Decode this.
void onTimeSignature(int numerator,
int denominator,
int metronomePulse,
int thirtySecondNotesPerQuarterNote);
void onKeySignature(int key, boolean isMinor);
void onSequencerSpecificEvent(byte[] data);
// SysEx events.
void onSysEx(byte[] data);
}