public NumericMixEvaluator(PropertyInfo targetProperty, T target, NumericEvalType evalType, MixType type)
{
TargetProperty = targetProperty;
Target = target;
EvalType = evalType;
MixType = type;
}
public static MixType NumericEvalTypeToMixTypeVariant(NumericEvalType evalType)
{
switch (evalType)
{
case NumericEvalType.StrictLess:
return(MixType.NUMERIC_STRICTLYLESS_VARIANT);
case NumericEvalType.Less:
return(MixType.NUMERIC_LESS_VARIANT);
case NumericEvalType.Equal:
return(MixType.NUMERIC_EQUAL_VARIANT);
case NumericEvalType.More:
return(MixType.NUMERIC_MORE_VARIANT);
case NumericEvalType.StrictMore:
return(MixType.NUMERIC_STRICTLYMORE_VARIANT);
default:
DebugHelper.Alert(new CallerInfo(), "Unexpected eval type");
return(MixType.None);
}
}
public static IMixEvaluator NumericMixEntryModelToMixEvaluator(MixType type, string input)
{
PropertyInfo info = null;
switch (type & MixType.SUBTYPE_MASK)
{
case MixType.RATING_SUBTYPE:
info = typeof(SongViewModel).GetRuntimeProperty(SongViewModel.Properties.Rating);
break;
case MixType.LENGTH_SUBTYPE:
info = typeof(SongViewModel).GetRuntimeProperty(SongViewModel.Properties.DurationSeconds);
break;
case MixType.PLAYCOUNT_SUBTYPE:
info = typeof(SongViewModel).GetRuntimeProperty(SongViewModel.Properties.PlayCount);
break;
default:
DebugHelper.Alert(new CallerInfo(), "Unexpected NUMBER_TYPE MixType {0}", type);
break;
}
NumericEvalType numericEvalType = NumericEvalType.Unknown;
switch (type & MixType.VARIANT_MASK)
{
case MixType.NUMERIC_STRICTLYLESS_VARIANT:
numericEvalType = NumericEvalType.StrictLess;
break;
case MixType.NUMERIC_LESS_VARIANT:
numericEvalType = NumericEvalType.Less;
break;
case MixType.NUMERIC_EQUAL_VARIANT:
numericEvalType = NumericEvalType.Equal;
break;
case MixType.NUMERIC_MORE_VARIANT:
numericEvalType = NumericEvalType.More;
break;
case MixType.NUMERIC_STRICTLYMORE_VARIANT:
numericEvalType = NumericEvalType.StrictMore;
break;
default:
DebugHelper.Alert(new CallerInfo(), "Unexpected NUMBER_TYPE VARIANT_MASK MixType {0}", type);
break;
}
if (info != null)
{
Type t = info.PropertyType;
IComparable inputAsType = DebugHelper.CastAndAssert <IComparable>(Utilities.GetDefault(t));
try
{
inputAsType = DebugHelper.CastAndAssert <IComparable>(Convert.ChangeType(input, t));
}
catch (FormatException)
{
// If cast is bad, ignore and use default type
}
return(new NumericMixEvaluator <IComparable>(info, inputAsType, numericEvalType, type));
}
return(new NoneMixEvaluator());
}
