TkTrackingRegionsMargin.h

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#ifndef TkTrackingRegionsMargin_H
#define TkTrackingRegionsMargin_H

#include <utility>
#include <iostream>

template <class T>
class TkTrackingRegionsMargin : public std::pair<T, T> {
public:
  TkTrackingRegionsMargin() {}

  TkTrackingRegionsMargin(const T& aLeft, const T& aRight) : std::pair<T, T>(aLeft, aRight) {}

  TkTrackingRegionsMargin(const std::pair<T, T>& aPair) : std::pair<T, T>(aPair) {}

  const T& left() const { return this->first; }
  const T& right() const { return this->second; }

  void operator+=(const T& v) { add(v, v); }
  void add(const T& addLeft, const T& addRight) {
    this->first += addLeft;
    this->second += addRight;
  }
};

template <class T>
std::ostream& operator<<(std::ostream& out, const TkTrackingRegionsMargin<T>& m) {
  return out << "(" << m.left() << "," << m.right() << ")";
}
#endif