UnitFormatter.cs

using System;
using System.Globalization;

namespace WinCachebox
{
    public class UnitFormatter
  {
    public static bool ImperialUnits = Config.GetBool("ImperialUnits");

    /// <summary>
    /// Erzeugt eine für den Menschen lesbare Form der Distanz
    /// </summary>
    /// <param name="distance"></param>
    /// <returns></returns>
    public static String DistanceString(float distance)
    {
      if (ImperialUnits)
        return DistanceStringImperial(distance);
      else
        return DistanceStringMetric(distance);
    }

    /// <summary>
    /// Erzeugt eine für den Menschen lesbare Form der Distanz
    /// </summary>
    /// <param name="distance"></param>
    /// <returns></returns>
    public static String DistanceStringMetric(float distance)
    {
      if (distance <= 500)
        return String.Format(NumberFormatInfo.InvariantInfo, "{0:0}m", distance);

      if (distance < 10000)
        return String.Format(NumberFormatInfo.InvariantInfo, "{0:0.00}km", distance / 1000);

      return String.Format(NumberFormatInfo.InvariantInfo, "{0:0.0}km", distance / 1000);
    }

    /// <summary>
    /// Erzeugt eine für den Menschen lesbare Form der Distanz
    /// </summary>
    /// <param name="distance"></param>
    /// <returns></returns>
    public static String DistanceStringImperial(float distance)
    {
      float yards = distance / 0.9144f;
      float miles = yards / 1760;

      if (yards < 1000)
        return String.Format(NumberFormatInfo.InvariantInfo, "{0:0}yd", yards);

      if (miles < 10)
        return String.Format(NumberFormatInfo.InvariantInfo, "{0:0.00}mi", miles);

      return String.Format(NumberFormatInfo.InvariantInfo, "{0:0.0}mi", miles);
    }

    public static String SpeedString(float kmh)
    {
      if (ImperialUnits)
        return SpeedStringImperial(kmh);
      else
        return SpeedStringMetric(kmh);
    }

    public static String SpeedStringMetric(float kmh)
    {
      return String.Format(NumberFormatInfo.InvariantInfo, "{0:0.00} km/h", kmh);
    }

    public static String SpeedStringImperial(float kmh)
    {
      return String.Format(NumberFormatInfo.InvariantInfo, "{0:0.00} mph", kmh / 1.6093f);
    }
  }
}