static bool DimensionsAreEqual(UIExchangeItem x, UIExchangeItem y)
{
return(x.ValueDefinition is IQuantity &&
y.ValueDefinition is IQuantity &&
Dimension.DescribesSameAs(((IQuantity)x.ValueDefinition).Unit.Dimension,
((IQuantity)y.ValueDefinition).Unit.Dimension));
}
public void Equals()
{
Dimension dimension = new Dimension();
dimension.SetPower(DimensionBase.Length, 3);
dimension.SetPower(DimensionBase.Time, -1);
Assert.IsTrue(Dimension.DescribesSameAs(dimension, this.dimension));
dimension.SetPower(DimensionBase.Length, 2);
Assert.IsFalse(Dimension.DescribesSameAs(dimension, this.dimension));
Assert.IsFalse(dimension.Equals("string"));
}
public bool Predicate(UIExchangeItem item)
{
if (!(item.ValueDefinition is IQuantity))
{
return(false);
}
foreach (IDimension d in _dimensions)
{
if (Dimension.DescribesSameAs(d, ((IQuantity)item.ValueDefinition).Unit.Dimension))
{
return(true);
}
}
return(false);
}
public FilterOnDimension(List <UIExchangeItem> items)
{
if (items.Count > 0)
{
CompareDimensions compare = new CompareDimensions();
items.Sort(compare);
for (int n = 0; n < items.Count; ++n)
{
if (items[n].ValueDefinition is IQuantity)
{
if (_dimensions.Count == 0 ||
!Dimension.DescribesSameAs(_dimensions[_dimensions.Count - 1],
((IQuantity)items[n].ValueDefinition).Unit.Dimension))
{
_dimensions.Add(((IQuantity)items[n].ValueDefinition).Unit.Dimension);
}
}
}
}
}