public object Convert(object value, Type targetType, object parameter, string language)
{
SupportedWeight expectedUnits = SupportedWeight.Kilogram;
if (parameter is SupportedWeight supportedWeight)
{
expectedUnits = supportedWeight;
}
else if (parameter is string str)
{
if (Enum.TryParse <SupportedWeight>(str, out SupportedWeight supported))
{
expectedUnits = supported;
}
}
if (value is double weight)
{
if (!double.IsNaN(weight))
{
return($"{weight} {shortHandNames[(int)expectedUnits]}");
}
else
{
return($"{weight}");
}
}
return(value);
//throw new NotImplementedException();
}
public static double ConvertWeight(double measurement, SupportedWeight supported, ConvertToWeight convertTo)
{
double result = double.NaN;
if (!double.IsNaN(measurement))
{
switch (supported)
{
case SupportedWeight.Gram:
switch (convertTo)
{
case ConvertToWeight.Grams:
result = measurement;
break;
case ConvertToWeight.Millgrams:
result = measurement * 1000;
break;
case ConvertToWeight.Kilograms:
result = measurement * 1e-3;
break;
default:
System.Diagnostics.Debug.WriteLine($"{supported} is not supported.");
break;
}
break;
case SupportedWeight.Kilogram:
switch (convertTo)
{
case ConvertToWeight.Grams:
result = measurement * 1000;
break;
case ConvertToWeight.Millgrams:
result = measurement * 1e6;
break;
case ConvertToWeight.Kilograms:
result = measurement;
break;
default:
System.Diagnostics.Debug.WriteLine($"{supported} is not supported.");
break;
}
break;
case SupportedWeight.Ounce:
switch (convertTo)
{
case ConvertToWeight.Grams:
result = measurement * Constants.OunceToGram;
break;
case ConvertToWeight.Millgrams:
result = measurement * Constants.OunceToGram * 1000;
break;
case ConvertToWeight.Kilograms:
result = measurement * Constants.OunceToGram / 1000;
break;
default:
System.Diagnostics.Debug.WriteLine($"{supported} is not supported.");
break;
}
break;
case SupportedWeight.Pound:
switch (convertTo)
{
case ConvertToWeight.Grams:
result = measurement * Constants.PoundToGram;
break;
case ConvertToWeight.Millgrams:
result = measurement * Constants.PoundToGram * 1000;
break;
case ConvertToWeight.Kilograms:
result = measurement * Constants.PoundToKg;
break;
default:
System.Diagnostics.Debug.WriteLine($"{supported} is not supported.");
break;
}
break;
default:
break;
}
return(result);
}
return(measurement);
}
