public static void Normalize(this FillupEntry entry,
UnitOfMeasure.Distance normalizedDistanceUnit,
UnitOfMeasure.Volume normalizedVolumeUnit)
{
if (entry.OdometerUnit != normalizedDistanceUnit)
{
entry.OdometerReading *= entry.OdometerUnit == UnitOfMeasure.Distance.Mile
? MILE_TO_KILOMETER_RATIO
: KILOMETER_TO_MILE_RATIO;
entry.OdometerUnit = entry.OdometerUnit == UnitOfMeasure.Distance.Mile
? UnitOfMeasure.Distance.Kilometer
: UnitOfMeasure.Distance.Mile;
}
if (entry.PumpUnit != normalizedVolumeUnit)
{
entry.FillAmount *= entry.PumpUnit == UnitOfMeasure.Volume.Gallon
? GALLON_TO_LITER_RATIO
: LITER_TO_GALLON_RATIO;
entry.PricePerUnit /= entry.PumpUnit == UnitOfMeasure.Volume.Gallon
? GALLON_TO_LITER_RATIO
: LITER_TO_GALLON_RATIO;
entry.PumpUnit = entry.PumpUnit == UnitOfMeasure.Volume.Gallon
? UnitOfMeasure.Volume.Liter
: UnitOfMeasure.Volume.Gallon;
}
}
public static string GetEfficiencyString(this double efficiency, UnitOfMeasure.Distance distanceUnit,
UnitOfMeasure.Volume volumeUnit)
{
//standard imperial efficiency abbreviation
if (distanceUnit == UnitOfMeasure.Distance.Mile &&
volumeUnit == UnitOfMeasure.Volume.Gallon)
return string.Format("{0:###.#} mpg", efficiency);
//standard metric efficiency abbreviation
if (distanceUnit == UnitOfMeasure.Distance.Kilometer &&
volumeUnit == UnitOfMeasure.Volume.Liter)
return string.Format("{0:###.#} km/L", efficiency);
;
//for any case where imperial and metric units are used for either volume or distance
return string.Format("{0:###.#} {1} per {2}", efficiency, distanceUnit.ToString().ToLower(),
volumeUnit.ToString().ToLower());
}