public ConverterModule(IGraphRuntime runtime)
: base(runtime)
{
converterByName.Add("None", null);
foreach (var c in runtime.TypeConverters)
{
string sourceTypeName = GetShortTypeName(c.SourceType);
string destinationTypeName = GetShortTypeName(c.DestinationType);
var converterName = string.Concat(sourceTypeName, " -> ", destinationTypeName);
if (!converterByName.ContainsKey(converterName))
{
converterByName.Add(converterName, c);
}
}
this.inputPin = AddInputPin("Input", PinDataTypeFactory.FromType(typeof(object)), PropertyMode.Never);
this.converterPin = AddInputPin("Converter", PinDataTypeFactory.CreateDynamicEnum(converterByName.Keys.ToArray(), "None"), PropertyMode.Always);
this.outputPin = AddOutputPin("Output", PinDataTypeFactory.FromType(typeof(object)));
this.properties[converterPin.Id].WhenNodeEvent.OfType <PropertyChangedEvent>().Subscribe(x =>
{
var converterName = (string)x.Value.Value;
converterByName.TryGetValue(converterName, out typeConverter);
IPinDataType sourceType, destinationType;
if (typeConverter == null)
{
sourceType = PinDataTypeFactory.CreateAny();
destinationType = PinDataTypeFactory.CreateAny();
}
else
{
sourceType = typeConverter.SourceType != null ? PinDataTypeFactory.FromType(typeConverter.SourceType) : PinDataTypeFactory.CreateAny();
destinationType = typeConverter.DestinationType != null ? PinDataTypeFactory.FromType(typeConverter.DestinationType) : PinDataTypeFactory.CreateAny();
}
var errors = inputPin.ChangeType(sourceType).Concat(outputPin.ChangeType(destinationType));
if (errors.Any())
{
throw new AggregateException("One or more connections could not be reestablished after a data type change.", errors);
}
});
}
