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/*
Copyright (C) 2004 Chris Emerson
(based on push button by Carlos Ghirardelli)
This file is part of the libgpsim_modules library of gpsim
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see
<http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
#ifndef __ENC_H__
#define __ENC_H__
/* IN_MODULE should be defined for modules */
#define IN_MODULE
#include "../src/stimuli.h"
#include "../src/ioports.h"
#include "../src/symbol.h"
#include "../src/trace.h"
#include "../src/modules.h"
#include <gtk/gtk.h>
class Encoder : public Module, private TriggerObject
{
void create_widget(Encoder *enc);
public:
IOPIN *a_pin;
IOPIN *b_pin;
Encoder(const char *);
~Encoder(void);
void test(void);
void update(void);
/* Send clockwise pulses */
void send_cw(void);
/* Send anticlockwise pulses */
void send_ccw(void);
// Inheritances from the Package class
virtual void create_iopin_map(void);
// Inheritance from Module class
const virtual char *type(void) { return ("encoder"); };
static Module *construct(const char *new_name);
private:
enum rotate_state {
rot_detent,
rot_moving_cw,
rot_moving_ccw
};
rotate_state rs;
void toggle_a();
void toggle_b();
void schedule_tick();
void callback();
};
#endif // __ENC_H__
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