/*
openDICOM.NET openDICOM# 0.1.1
openDICOM# provides a library for DICOM related development on Mono.
Copyright (C) 2006-2007 Albert Gnandt
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
$Id: LT.cs 48 2007-03-28 13:49:15Z agnandt $
*/
using System;
using openDicom.DataStructure;
using openDicom.Registry;
namespace openDicom.Encoding{
/// <summary>
/// This class represents the specific DICOM VR Long Text (LT).
/// </summary>
public sealed class LongText: ValueRepresentation
{
public LongText(Tag tag): base("LT", tag) {}
public override string ToLongString()
{
return "Long Text (LT)";
}
protected override Array DecodeImproper(byte[] bytes)
{
string longText = TransferSyntax.ToString(bytes);
longText = longText.TrimEnd(null);
return new string[] { longText };
}
protected override Array DecodeProper(byte[] bytes)
{
string longText = TransferSyntax.ToString(bytes);
ValueMultiplicity vm = Tag.GetDictionaryEntry().VM;
if (vm.Equals(1) || vm.IsUndefined)
{
if (longText.Length <= 10240)
longText = longText.TrimEnd(null);
else
throw new EncodingException(
"A value of max. 10240 characters is only allowed.",
Tag, Name + "/longText", longText);
}
else
throw new EncodingException(
"Multiple values are not allowed within this field.",
Tag, Name + "/longText", longText);
return new string[] { longText };
}
}
}
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