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32 lines
1.1 KiB
32 lines
1.1 KiB
/*
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* Copyright 2010 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.levien.synthesizer.android.widgets.piano;
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// Simple interface for listening to piano widget events.
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public interface PianoViewListener {
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/**
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* A note was pressed.
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* @param logFrequency - the log frequency of the note pressed.
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* @param retriggerIfOn - true if this is a new touch, rather than just moving.
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*/
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void noteDown(double logFrequency, int finger, boolean retriggerIfOn, float pressure);
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/**
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* The note was released.
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*/
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void noteUp(int finger);
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}
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