gaze_tracker.h

#ifndef INCLUDE_GAZE_GAZE_TRACKER_H_
#define INCLUDE_GAZE_GAZE_TRACKER_H_

#include <string>
#include <utility>
#include <vector>

#include "opencv2/core.hpp"

#include "gaze/pipeline.h"
#include "gaze/pipeline_step.h"
#include "gaze/pipeline_steps/source_capture.h"


namespace gaze {

class GazeTracker {
  std::string current_trial_id;
  bool debug;
  bool initialized;
  Pipeline* pipeline;
  std::vector<PipelineStep*> pipeline_steps;
  std::string subject_id;
  std::string video_source;

  void init_pipeline(const std::string subject_id);

 public:
    GazeTracker(const std::string subject_id = "default_subject",
                const bool debug = false);

    ~GazeTracker();

    void calibrate();

    const std::pair<int, int> get_current_gaze_point() const;

    void init(const std::string subject_id,
              const bool debug = false);

    void start_trial(const std::string identifier);

    void stop_trial();
};

}  // namespace gaze

#endif  // INCLUDE_GAZE_GAZE_TRACKER_H_