encoder.h

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/*
 * Copyright (c) 2019, Open Source Robotics Foundation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the copyright holder nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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#ifndef PHIDGETS_API_ENCODER_H
#define PHIDGETS_API_ENCODER_H
 
#include <functional>
 
#include <libphidget22/phidget22.h>
 
#include "phidgets_api/phidget22.h"
 
namespace phidgets {
 
class Encoder final
{
  public:
    PHIDGET22_NO_COPY_NO_MOVE_NO_ASSIGN(Encoder)
 
    explicit Encoder(
        int32_t serial_number, int hub_port, bool is_hub_port_device,
        int channel,
        std::function<void(int, int, double, int)> position_change_handler);
 
    ~Encoder();
 
    int64_t getPosition() const;
 
    void setPosition(int64_t position) const;
 
    int64_t getIndexPosition() const;
 
    bool getEnabled() const;
 
    void setEnabled(bool enabled) const;
 
    Phidget_EncoderIOMode getIOMode() const;
    void setIOMode(Phidget_EncoderIOMode io_mode) const;
 
    uint32_t getDataInterval() const;
    void setDataInterval(uint32_t data_interval_ms) const;
 
    void positionChangeHandler(int position_change, double time,
                               int index_triggered);
 
  private:
    int channel_;
    std::function<void(int, int, double, int)> position_change_handler_;
    PhidgetEncoderHandle encoder_handle_;
 
    static void PositionChangeHandler(PhidgetEncoderHandle phid, void *ctx,
                                      int position_change, double time_change,
                                      int index_triggered);
};
 
}  // namespace phidgets
 
#endif  // PHIDGETS_API_ENCODER_H