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111 lines
3.7 KiB
111 lines
3.7 KiB
/***************************************************************************
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* Copyright (C) 2003 by Martin Koller *
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* m.koller@surfeu.at *
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* This file is part of the Trinity Control Center Module for Joysticks *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef _JOYDEVICE_H_
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#define _JOYDEVICE_H_
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#include <tqstring.h>
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#include <sys/types.h>
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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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// 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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{
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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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{
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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 TQString &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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TQString errText(ErrorCode code) const;
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int fd() const { return joyFd; }
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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 TQString &device() const { return devName; }
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// descriptive text for this device read from the driver
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TQString text() const { return descr; }
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int numButtons() const { return buttons; }
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int numAxes() const { return axes; }
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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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TQString devName; // device filename
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TQString 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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