view Source/TouchKeys/MidiInputController.h @ 31:88287c1c2c92

Added an auxiliary MIDI input control, and moved the logging out of the window into the menu to make space in the GUI. Also updated the main window to be rescalable vertically for showing more mappings.

/*
  TouchKeys: multi-touch musical keyboard control software
  Copyright (c) 2013 Andrew McPherson

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 
  =====================================================================
 
  MidiInputController.h: handles incoming MIDI data and manages input
  ports. Detailed processing is broken down by keyboard segment; see
  MidiKeyboardSegment.h/cpp for more.
*/


#ifndef MIDI_INPUT_CONTROLLER_H
#define MIDI_INPUT_CONTROLLER_H

#include <iostream>
#include <vector>
#include <map>
#include <set>
#include "../JuceLibraryCode/JuceHeader.h"
#include "PianoKeyboard.h"
#include "Osc.h"
#include "MidiKeyboardSegment.h"

using namespace std;

class MidiOutputController;

// MIDI standard messages

enum {
	kMidiMessageNoteOff = 0x80,
	kMidiMessageNoteOn = 0x90,
	kMidiMessageAftertouchPoly = 0xA0,
	kMidiMessageControlChange = 0xB0,
	kMidiMessageProgramChange = 0xC0,
	kMidiMessageAftertouchChannel = 0xD0,
	kMidiMessagePitchWheel = 0xE0,
	kMidiMessageSysex = 0xF0,
	kMidiMessageSysexEnd = 0xF7,
	kMidiMessageActiveSense = 0xFE,
	kMidiMessageReset = 0xFF
};

enum {
	kMidiControlAllSoundOff = 120,
	kMidiControlAllControllersOff = 121,
	kMidiControlLocalControl = 122,
	kMidiControlAllNotesOff = 123
};

class MidiInputController : public MidiInputCallback {
public:
	// Constructor
	MidiInputController(PianoKeyboard& keyboard);

	
	// Query available devices
	vector<pair<int, string> > availableMidiDevices();
	
	// Add/Remove MIDI input ports;
	// Enable methods return true on success (at least one port enabled) 
	bool enablePort(int portNumber, bool isPrimary);
	bool enableAllPorts(int primaryPortNumber);
	void disablePort(int portNumber);
    void disablePrimaryPort();
	void disableAllPorts(bool auxiliaryOnly);
    int primaryActivePort();
	vector<int> auxiliaryActivePorts();

	// Set/query the output controller
	MidiOutputController* midiOutputController() { return midiOutputController_; }
	void setMidiOutputController(MidiOutputController* ct);
	
	// All Notes Off: can be sent by MIDI or controlled programmatically
	void allNotesOff();
    
    // Return the number of keyboard segments, and a specific segment
    int numSegments() {
        ScopedLock sl(segmentsMutex_);
        return segments_.size();
    }
    MidiKeyboardSegment* segment(int num) {
        ScopedLock sl(segmentsMutex_);
        if(num < 0 || num >= segments_.size())
            return 0;
        return segments_[num];
    }
    // Return a unique signature which tells us when the MIDI segments have changed,
    // allowing any listeners to re-query all the segments.
    int segmentUniqueIdentifier() {
        return segmentUniqueIdentifier_;
    }

    // Add a new keyboard segment. Returns a pointer to the newly created segment
    MidiKeyboardSegment* addSegment(int outputPortNumber, int noteMin = 0, int noteMax = 127, int channelMask = 0xFFFF);
    
    // Remove a segment by index or by object
    void removeSegment(int index);
    void removeSegment(MidiKeyboardSegment* segment);
    void removeAllSegments();
    
    // Juce MIDI callbacks
    void handleIncomingMidiMessage(MidiInput* source, const MidiMessage& message);
    void handlePartialSysexMessage(MidiInput* source,
                                   const uint8* messageData,
                                   int numBytesSoFar,
                                   double timestamp) {}
	
	// OSC method: used to get touch callback data from the keyboard
	// bool oscHandlerMethod(const char *path, const char *types, int numValues, lo_arg **values, void *data);
    
    // for logging
    void createLogFile(string midiLog_filename, string path);
    void closeLogFile();
    void startLogging();
    void stopLogging();
    
    bool logFileCreated;
    bool loggingActive;

	// Destructor
	~MidiInputController();
	
private:
	// ***** Member Variables *****
	
	PianoKeyboard& keyboard_;						// Reference to main keyboard data
    MidiOutputController *midiOutputController_;	// Destination for MIDI output
    
	map<int, MidiInput*> activePorts_;              // Sources of MIDI data
    int primaryActivePort_;                         // Which source is primary
    
    vector<MidiKeyboardSegment*> segments_;         // Segments of the keyboard
    CriticalSection segmentsMutex_;                 // Mutex protecting the segments list
    int segmentUniqueIdentifier_;                   // Identifier of when segment structure has changed
    
    // for logging
    ofstream midiLog;
};

#endif /* MIDI_INPUT_CONTROLLER_H */