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