// File: hldevt.cc
//
//*-- Author : Walter Karig <W.Karig@gsi.de>
//*-- Modified : 97/12/11 18:19:30 by Walter Karig
//*-- Modified : 25/03/98 by Manuel Sanchez Garcia
//

//////////////////////////////////////////////////////
//HldEvent
//
//  Class used for reading LMD events from file
//
/////////////////////////////////////////////////////

#include <iomanip.h>
#include "hldfilevt.h"

//ClassImp(HldFilEvt) 

Bool_t HldFilEvt::read() {
  if (file->eof()) {
    return kFALSE;
  }
  if (pData) {
    delete[] pData;
    pData = 0;
  }
  if (file->read(pHdr, getHdrSize())) {
    if (isSwapped()) swapHdr();

    if (getSize() > getHdrSize()) {
        pData = new UInt4[getDataLen()];
      if (file->read(pData, getDataSize()))
        file->ignore(getPaddedSize() - getSize());
    }
  }
  return file->good();
}


Bool_t HldFilEvt::readSubEvt(size_t i)  {
  UInt4* p;
  if (i)
    p = subEvt[i-1].getPaddedEnd();
   else
    p = pData;
  if (p < getPaddedEnd())
    subEvt[i] = HldSubEvt(p);
  else
    return kFALSE;
  return kTRUE;
}
  


Bool_t HldFilEvt::execute() {
    if (read()){
      for (size_t idx = 0; idx < lastSubEvtIdx; idx++) // reset
      *subEvtTable[idx].p = 0;
    for (size_t i = 0; i < maxSubEvts && readSubEvt(i); i++)
      for (size_t idx = 0; idx < lastSubEvtIdx; idx++) {
	//	  cout << "\tsubEvt["<<i<<"].getId()= " << subEvt[i].getId() << " table= " << subEvtTable[idx].id << endl;
        if (subEvt[i].getId() == subEvtTable[idx].id) {
          subEvt[i].swapData();
          *subEvtTable[idx].p = subEvt + i;
       //	 	  cout << "Y metido en la table" << endl;
        }
      }
    return kTRUE;
  } else {
 return kFALSE;
 }
} 

Bool_t HldFilEvt::swap(){
//only swapping correctly the header  
  if(read()){
       return kTRUE;
   } else {
 return kFALSE;
 }
}