public override void PrepareProcessing()
{
_reader?.Dispose();
try {
_reader = new System.IO.BinaryReader(System.IO.File.OpenRead(_attrFilePath.TypedGet()));
} catch (Exception ex) {
Parent.Context.Notify(new GraphNotification(GraphNotification.NotificationType.Error, ex.ToString()));
throw;
}
if (_reader != null)
{
_reader.BaseStream.Seek(0, System.IO.SeekOrigin.Begin);
_portOut.PrepareProcessing();
_portTrigger.PrepareProcessing();
_buffer = new TimeLocatedBuffer1D <double>(_portOut.Buffer.Capacity, _portOut.Samplerate);
_endOfStream = false;
if (_portTrigger.Connection == null)
{
_startTime = new TimeStamp(0);
}
}
else
{
throw new Exception("File node: did not specify input");
}
_lastStatePosition = 0;
_sampleSize = _dataTypeSizes[_attrDataType.TypedGet()];
_sampleGetterFunc = () => {
throw new System.IO.EndOfStreamException();
};
switch (_attrDataType.TypedGet())
{
case DataType.Float32:
_sampleGetterFunc = () => _reader.ReadSingle();
break;
case DataType.Float64:
_sampleGetterFunc = () => _reader.ReadDouble();
break;
case DataType.Int16:
_sampleGetterFunc = () => _reader.ReadInt16();
break;
case DataType.Int32:
_sampleGetterFunc = () => _reader.ReadInt32();
break;
case DataType.Int64:
_sampleGetterFunc = () => _reader.ReadInt64();
break;
default:
throw new NotImplementedException();
}
}
public override void EditStart()
{
_textBoxPath.Text = _attr.TypedGet();
}
