touchscreenkeyboard.h

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/*****************************************************************************
 * Copyright 2016-2017 Karolin Stange, Christoph Wick, and Haye Hinrichsen
 *
 * This file is part of JustIntonation.
 *
 * JustIntonation 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.
 *
 * JustIntonation 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 JustIntonation. If not, see http://www.gnu.org/licenses/.
 *****************************************************************************/

#ifndef TOUCHSCREENKEYBOARD_H
#define TOUCHSCREENKEYBOARD_H

#include <QObject>
#include <QSet>
#include <QVariant>
#include <QMidiMessage>

#include "system/shared.h"


class TouchscreenKeyboard : public QObject
{
    Q_OBJECT
public:
    TouchscreenKeyboard();

    bool init()   { mActive = true; return true; }
    bool start()  { mActive = true; return true; }
    bool stop()   { clear(); mActive = false; return true; }
    bool exit()   { clear(); mActive = false; return true; }
    void suspend(){ mActive = false; }
    void resume() { mActive = true; }

public slots:
    void receiveTouchpadKeyboardEvent (QVariant keys);
    void setToggleMode (bool on) { clear(); mToggleMode=on; }
    void clear();

signals:
    void sendTouchpadMidiEvent (QMidiMessage event);
    void highlightKey (QVariant key, QVariant on);

private:
    void switchNote (int key, bool on);

    QSet<int> mPressedKeys;             
    QVector<bool> mSoundActive;         
    bool mToggleMode;                   
    bool mActive;                       
};

#endif // TOUCHSCREENKEYBOARD_H