/*=========================================================================
                                                                                
  Program:   gdcm
  Module:    $RCSfile: gdcmSeqEntry.cxx,v $
  Language:  C++
  Date:      $Date: 2004/06/21 04:43:02 $
  Version:   $Revision: 1.13 $
                                                                                
  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  l'Image). All rights reserved. See Doc/License.txt or
  http://www.creatis.insa-lyon.fr/Public/Gdcm/License.htm 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 notices for more information.
                                                                                
=========================================================================*/

#include "gdcmSeqEntry.h"
#include "gdcmSQItem.h"
#include "gdcmTS.h"
#include "gdcmGlobal.h"
#include "gdcmUtil.h"

#include <iostream>
#include <iomanip>
//-----------------------------------------------------------------------------
// Constructor / Destructor
/**
 * \ingroup gdcmSeqEntry
 * \brief   Constructor from a given gdcmSeqEntry
 */
gdcmSeqEntry::gdcmSeqEntry(gdcmDictEntry* e, int depth) 
             : gdcmDocEntry(e)
{
   delimitor_mode = false;
   seq_term  = NULL;
   SQDepthLevel = depth;
}

/**
 * \ingroup gdcmSeqEntry
 * \brief   Canonical destructor.
 */
gdcmSeqEntry::~gdcmSeqEntry() {
   for(ListSQItem::iterator cc = items.begin();cc != items.end();++cc)
   {
      delete *cc;
   }
   if (!seq_term)
      delete seq_term;
}

//-----------------------------------------------------------------------------
// Print
/*
 * \ingroup gdcmSeqEntry
 * \brief   canonical Printer
 */
void gdcmSeqEntry::Print(std::ostream &os){

   std::ostringstream s,s2;
   std::string vr;
   //unsigned short int g, e; //not used
   //long lgth; //not used
   //size_t o;    //not used
   //char greltag[10];  //group element tag //not used
   //char st[20];   //not used

   // First, Print the Dicom Element itself.
   SetPrintLevel(2);   
   PrintCommonPart(os);
   s << std::endl;
   os << s.str();   
 
    // Then, Print each SQ Item   
     for(ListSQItem::iterator cc = items.begin();cc != items.end();++cc)
   {				
      (*cc)->Print(os);   
   }
   // at end, print the sequence terminator item, if any

   if (delimitor_mode) {
      if (SQDepthLevel>0) {
         for (int i=0;i<SQDepthLevel;i++)
            s2 << "   | " ;
      }		
      os << s2.str();
      if (seq_term != NULL) {
         seq_term->Print(os);
      } 
      else 
         std::cout
             << "      -------------- should have a sequence terminator item"
             << std::endl;      
   }                    
 }

//-----------------------------------------------------------------------------
// Public

 /// \brief   adds the passed ITEM to the ITEM chained List for this SeQuence.      
void gdcmSeqEntry::AddEntry(gdcmSQItem *sqItem, int itemNumber) {
   sqItem->SetSQItemNumber(itemNumber);
   items.push_back(sqItem);
}

/// \brief Sets the depth level of a Sequence Entry embedded in a SeQuence 
void gdcmSeqEntry::SetDepthLevel(int depth) {
   SQDepthLevel = depth;
}

/// \brief return a pointer to th SQItem referenced by its ordinal number
/// (returns the first one if ordinal number is <0
///  returns the last  one if ordinal number is > item number

gdcmSQItem *gdcmSeqEntry::GetSQItemByOrdinalNumber(int nb) {
   if (nb<0)
		return (*(items.begin()));
	int count = 0 ;
   for(ListSQItem::iterator cc = items.begin();
	    cc != items.end();
		 count ++, ++cc){	
      if (count==nb)
		   return (*cc);      
   }
	return (*(items.end()));		 
}
//-----------------------------------------------------------------------------
// Protected


//-----------------------------------------------------------------------------
// Private

//-----------------------------------------------------------------------------