src/map/angularunits.h

   1 #ifndef ANGULARUNITS_H
   2 #define ANGULARUNITS_H
   3
   4 #include <cmath>
   5 #include <QDebug>
   6
   7 class AngularUnits
   8 {
   9 public:
  10         AngularUnits() : _code(0), _f(NAN) {}
  11         AngularUnits(int code);
  12
  13         bool isNull() const {return std::isnan(_f);}
  14         bool isValid() const {return !std::isnan(_f);}
  15
  16         double toDegrees(double val) const;
  17         double fromDegrees(double val) const;
  18
  19         friend bool operator==(const AngularUnits &au1, const AngularUnits &au2);
  20 #ifndef QT_NO_DEBUG
  21         friend QDebug operator<<(QDebug dbg, const AngularUnits &au);
  22 #endif // QT_NO_DEBUG
  23 private:
  24         int _code;
  25         double _f;
  26 };
  27
  28 inline bool operator==(const AngularUnits &au1, const AngularUnits &au2)
  29   {return (au1._f == au2._f);}
  30
  31 #ifndef QT_NO_DEBUG
  32 QDebug operator<<(QDebug dbg, const AngularUnits &au);
  33 #endif // QT_NO_DEBUG
  34
  35 #endif // ANGULARUNITS_H