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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmImplicitDataElement.h"
#include "gdcmByteValue.h"
#include "gdcmSequenceOfItems.h"
namespace gdcm
{
VL ImplicitDataElement::GetLength() const
{
const Value &v = GetValue();
if( ValueLengthField.IsUndefined() )
{
assert( ValueField->GetLength().IsUndefined() );
Value *p = ValueField;
SequenceOfItems *sq = dynamic_cast<SequenceOfItems*>(p);
if( sq )
{
return TagField.GetLength() + ValueLengthField.GetLength()
+ sq->ComputeLength<ImplicitDataElement>();
}
#ifdef GDCM_SUPPORT_BROKEN_IMPLEMENTATION
SequenceOfFragments *sf = dynamic_cast<SequenceOfFragments*>(p);
if( sf )
{
//assert( VRField & VR::OB_OW ); // VR::INVALID is not possible AFAIK...
return TagField.GetLength() /*+ VRField.GetLength()*/
+ ValueLengthField.GetLength() + sf->ComputeLength();
}
#endif
assert( !ValueLengthField.IsUndefined() );
return ValueLengthField;
}
//else if( const SequenceOfItems *sqi = GetSequenceOfItems() )
else if( const SequenceOfItems *sqi = dynamic_cast<const SequenceOfItems*>(&v) )
{
// TestWrite2
return TagField.GetLength() + ValueLengthField.GetLength()
+ sqi->ComputeLength<ImplicitDataElement>();
}
else
{
assert( !ValueField || ValueField->GetLength() == ValueLengthField );
return TagField.GetLength() + ValueLengthField.GetLength()
+ ValueLengthField;
}
}
} // end namespace gdcm
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