juce_MidiMessageCollector.h

Go to the documentation of this file.

/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2015 - ROLI Ltd.
 
   Permission is granted to use this software under the terms of either:
   a) the GPL v2 (or any later version)
   b) the Affero GPL v3
 
   Details of these licenses can be found at: www.gnu.org/licenses
 
   JUCE 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.
 
   ------------------------------------------------------------------------------
 
   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.juce.com for more information.
 
  ==============================================================================
*/
 
#ifndef JUCE_MIDIMESSAGECOLLECTOR_H_INCLUDED
#define JUCE_MIDIMESSAGECOLLECTOR_H_INCLUDED
 
 
//==============================================================================
class JUCE_API  MidiMessageCollector    : public MidiKeyboardStateListener,
                                          public MidiInputCallback
{
public:
    //==============================================================================
    MidiMessageCollector();
 
    ~MidiMessageCollector();
 
    //==============================================================================
    void reset (double sampleRate);
 
    void addMessageToQueue (const MidiMessage& message);
 
    void removeNextBlockOfMessages (MidiBuffer& destBuffer, int numSamples);
 
 
    //==============================================================================
    void handleNoteOn (MidiKeyboardState*, int midiChannel, int midiNoteNumber, float velocity) override;
    void handleNoteOff (MidiKeyboardState*, int midiChannel, int midiNoteNumber) override;
    void handleIncomingMidiMessage (MidiInput*, const MidiMessage&) override;
 
private:
    //==============================================================================
    double lastCallbackTime;
    CriticalSection midiCallbackLock;
    MidiBuffer incomingMessages;
    double sampleRate;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MidiMessageCollector)
};
 
 
#endif   // JUCE_MIDIMESSAGECOLLECTOR_H_INCLUDED