companion/src/simulation/joystick.h

   1 /*
   2  * Copyright (C) OpenTX
   3  *
   4  * Based on code named
   5  *   th9x - http://code.google.com/p/th9x
   6  *   er9x - http://code.google.com/p/er9x
   7  *   gruvin9x - http://code.google.com/p/gruvin9x
   8  *
   9  * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #ifndef _JOYSTICK_H_
  22 #define _JOYSTICK_H_
  23
  24 #include <QObject>
  25 #include <QMap>
  26 #include <QTime>
  27 #include <QTimer>
  28 #include <QStringList>
  29 #include <SDL.h>
  30
  31 #define SDL_JOYSTICK_DEFAULT_EVENT_TIMEOUT         25
  32 #define SDL_JOYSTICK_DEFAULT_AUTOREPEAT_DELAY      250
  33
  34 class Joystick : public QObject
  35 {
  36   Q_OBJECT
  37
  38   public:
  39     QStringList joystickNames;
  40     SDL_Joystick *joystick;
  41     int numAxes;
  42     int numButtons;
  43     int numHats;
  44     int numTrackballs;
  45     int eventTimeout;
  46     int autoRepeatDelay;
  47     bool autoRepeat;
  48     QTimer joystickTimer;
  49     QMap<int, int> deadzones;
  50     QMap<int, int> sensitivities;
  51
  52     Joystick(QObject *parent = 0,
  53              int joystickEventTimeout = SDL_JOYSTICK_DEFAULT_EVENT_TIMEOUT,
  54              bool doAutoRepeat = true,
  55              int autoRepeatDelay = SDL_JOYSTICK_DEFAULT_AUTOREPEAT_DELAY);
  56     ~Joystick();
  57     bool open(int);
  58     void close();
  59     bool isOpen() { return joystick != NULL; }
  60     int getAxisValue(int);
  61
  62   private:
  63     QMap<int, Sint16> axes;
  64     QMap<int, Uint8> buttons;
  65     QMap<int, Uint8> hats;
  66     QMap<int, QTime> axisRepeatTimers;
  67     QMap<int, QTime> buttonRepeatTimers;
  68     QMap<int, QTime> hatRepeatTimers;
  69
  70   signals:
  71     void axisValueChanged(int axis, int value);
  72     void buttonValueChanged(int button, bool value);
  73     void hatValueChanged(int hat, int value);
  74     void trackballValueChanged(int trackball, int deltaX, int deltaY);
  75
  76   public slots:
  77     void processEvents();
  78 };
  79
  80 #endif // _JOYSTICK_H_