File indexing completed on 2024-05-12 17:07:11

 /*
     This file is part of the KDE Control Center Module for Joysticks
 
     SPDX-FileCopyrightText: 2003 Martin Koller <kollix@aon.at>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include <QString>
 
 #include <sys/types.h>
 
 #ifdef Q_OS_LINUX
 #undef __STRICT_ANSI__
 #include <linux/joystick.h>
 #define __STRICT_ANSI__
 #endif
 
 #ifdef Q_OS_FREEBSD
 #include <sys/joystick.h>
 #endif
 
 // helper class which holds all current values, file descriptor, etc. for
 // one device
 class JoyDevice
 {
 public:
     enum ErrorCode {
         SUCCESS,
         OPEN_FAILED,
         NO_JOYSTICK,
         WRONG_VERSION,
         ERR_GET_VERSION,
         ERR_GET_BUTTONS,
         ERR_GET_AXES,
         ERR_GET_CORR,
         ERR_RESTORE_CORR,
         ERR_INIT_CAL,
         ERR_APPLY_CAL,
     };
 
     enum EventType {
         BUTTON,
         AXIS,
     };
 
     // devicefile to use, e.g. "/dev/js0"
     JoyDevice(const QString &devicefile);
     ~JoyDevice();
 
     // returns one of the error-codes from above
     ErrorCode open();
 
     // return descriptive error text for given error code
     QString errText(ErrorCode code) const;
 
     int fd() const
     {
         return joyFd;
     }
     void close();
     ErrorCode restoreCorr();
 
     // return devicefilename from constructor
     const QString &device() const
     {
         return devName;
     }
 
     // descriptive text for this device read from the driver
     QString text() const
     {
         return descr;
     }
 
     int numButtons() const
     {
         return buttons;
     }
     int numAxes() const
     {
         return axes;
     }
     int axisMin(int axis) const;
     int axisMax(int axis) const;
 
     // read next event from device; returns true if there was an event during the short timeout
     bool getEvent(JoyDevice::EventType &type, int &number, int &value, bool wait);
 
     // methods for calibration
     ErrorCode initCalibration(); // must be called first
     void calcPrecision();
 
     void resetMinMax(int axis, int value = 0);
 
     // calculate correction values
     // min[2], center[2], max[2], index 0 == minimum, index 1 == maximum
     void calcCorrection(int axis, int *min, int *center, int *max);
     ErrorCode applyCalibration();
 
 private:
     QString devName; // device filename
     QString descr; // descriptive text
     int joyFd;
 
     int buttons;
     int axes;
     int *amin; // axes min values
     int *amax; // axes max values
 
     struct js_corr *corr; // calibration values during the calib. steps
     struct js_corr *origCorr; // original calibration correction values
 };