Transform.hpp

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#ifndef TRANSFORM_H_
#define TRANSFORM_H_

#include <functional>

#include "frontend/Data.hpp"
#include "util/BBox.hpp"

namespace trase {

struct Identity {
  DataWithAesthetic operator()(const DataWithAesthetic &data) const {
    return data;
  }
};

class BinX {
  int m_number_of_bins{-1};
  bbox<float, 1> m_span;

public:
  BinX() = default;
  explicit BinX(int number_of_bins);
  explicit BinX(int number_of_bins, float min, float max);
  DataWithAesthetic operator()(const DataWithAesthetic &data);
};

class Transform {
  std::function<DataWithAesthetic(const DataWithAesthetic &)> m_transform;

public:
  Transform() : m_transform(Identity()) {}

  template <typename T>
  explicit Transform(const T &transform) : m_transform(transform) {}

  DataWithAesthetic operator()(const DataWithAesthetic &data) {
    return m_transform(data);
  }
};

} // namespace trase

#endif // TRANSFORM_H_