Delay.h

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#ifndef GCP_UTIL_DELAY_H
#define GCP_UTIL_DELAY_H

#include <iostream>

namespace gcp {
  namespace util {
    
    class Delay {
    public:
      
      Delay();
      
      virtual ~Delay();
      
      void setDelayInMeters(double delayInMeters) {
    nanoSeconds_ = delayInMeters / lightSpeed_ * nanoSecPerSec_;
      }
      
      void setDelayRateInMeters(double delayRateInMeters) {
    dNanoSeconds_ = delayRateInMeters / lightSpeed_ * nanoSecPerSec_;
      }
      
      void setDelayInNanoSeconds(double delayInNanoSec) {
    nanoSeconds_ = delayInNanoSec;
      }
      
      void setDelayRateInNanoSeconds(double delayRateInNanoSec) {
    dNanoSeconds_ = delayRateInNanoSec;
      }
      
      inline double meters() {
    return nanoSeconds_ / nanoSecPerSec_ * lightSpeed_;
      }
      
      inline double metersPerSecond() {
    return dNanoSeconds_ / nanoSecPerSec_ * lightSpeed_;
      }
      
      inline double seconds() {
    return nanoSeconds_ / nanoSecPerSec_;
      }
      
      inline double nanoSeconds() {
    return nanoSeconds_;
      }
      
      inline double nanoSecondsPerSecond() {
    return dNanoSeconds_;
      }
      
      inline double secondsPerSecond() {
    return dNanoSeconds_ / nanoSecPerSec_;
      }
      
      Delay  operator+(Delay& delay);
      Delay& operator+=(Delay& delay);
      Delay& operator+=(Delay delay);
      
      Delay  operator-(Delay& delay);
      Delay& operator-=(Delay& delay);
      Delay& operator-=(Delay delay);
      
      friend std::ostream& operator<<(std::ostream& os, Delay delay);
      
      inline void flipDelay() {
    nanoSeconds_ *= -1;
      }
      
      inline void flipRate() {
    dNanoSeconds_ *= -1;
      }
      
    private:
      
      static const double lightSpeed_;
      static const double nanoSecPerSec_;
      
      double nanoSeconds_;
      double dNanoSeconds_;
      
    }; // End class Delay
    
    std::ostream& operator<<(std::ostream& os, Delay delay);

  } // End namespace util
} // End namespace gcp




#endif // End #ifndef GCP_UTIL_DELAY_H