/// <summary>
/// Initialize the category and source/target units
/// </summary>
/// <param name="category">unit category</param>
/// <param name="sourceUnit">Source Unit </param>
/// <param name="targetUnit">Target unit</param>
public CurrentConversion(
CategoryInformation category,
UnitInformation sourceUnit,
UnitInformation targetUnit)
{
this.UserInput = new StringBuilder();
this.IsUpperUnitSource = true;
this.CurrentCategory = category;
this.SourceUnit = sourceUnit;
this.TargetUnit = targetUnit;
}
/// <summary>
/// Initialize the category and source/target units
/// </summary>
/// <param name="category">unit category</param>
/// <param name="sourceUnit">Source Unit </param>
/// <param name="targetUnit">Target unit</param>
public CurrentConversion(
CategoryInformation category ,
UnitInformation sourceUnit ,
UnitInformation targetUnit )
{
this.UserInput = new StringBuilder();
this.IsUpperUnitSource = true;
this.CurrentCategory = category;
this.SourceUnit = sourceUnit;
this.TargetUnit = targetUnit;
}
/// <summary>
/// Converts the specified value from the source unit type, to the target
/// unit value
/// </summary>
/// <param name="valueToConvert">The value to convert.</param>
/// <param name="source">The source unit</param>
/// <param name="target">The target unit</param>
/// <returns></returns>
internal static double Convert(
double valueToConvert,
UnitInformation source,
UnitInformation target)
{
if ((source == null) || (target == null))
{
throw new ArgumentNullException("source", "source or dest was null");
}
if (source == target)
{
return(valueToConvert);
}
double result = 0.0;
// Convert to the base unit type for the category.
if (source.FormulaInvert)
{
result = (valueToConvert - source.Offset) * source.Multiplier;
}
else
{
result = valueToConvert * source.Multiplier + source.Offset;
}
// Convert to the target unit
if (target.FormulaInvert)
{
result = result / target.Multiplier + target.Offset;
}
else
{
result = (result - target.Offset) / target.Multiplier;
}
return(result);
}
/// <summary>
/// Converts the specified value from the source unit type, to the target
/// unit value
/// </summary>
/// <param name="valueToConvert">The value to convert.</param>
/// <param name="source">The source unit</param>
/// <param name="target">The target unit</param>
/// <returns></returns>
internal static double Convert(
double valueToConvert ,
UnitInformation source,
UnitInformation target)
{
if ((source == null) || (target == null))
{
throw new ArgumentNullException("source" , "source or dest was null" );
}
if (source == target)
{
return valueToConvert;
}
double result = 0.0;
// Convert to the base unit type for the category.
if (source.FormulaInvert)
{
result = (valueToConvert - source.Offset) * source.Multiplier;
}
else
{
result = valueToConvert * source.Multiplier + source.Offset;
}
// Convert to the target unit
if (target.FormulaInvert)
{
result = result / target.Multiplier + target.Offset;
}
else
{
result = (result - target.Offset) / target.Multiplier;
}
return result;
}