//-------------------------------------------------------------------
// File and Version Information: 
// $Id: TSvtDataBlock.cc,v 1.6 2005/07/25 15:47:56 rlc Exp $
//
// Fill the Svt Data Structure on an event by event basis.
//
// Author List
//   Subir Sarkar
//-------------------------------------------------------------------

#include <iostream>
#include <iomanip>
#include <Stntuple/obj/TSvtDataBlock.hh>

using namespace std;

ClassImp(TSvtDataBlock)

//_____________________________________________________________________________
void TSvtDataBlock::Streamer(TBuffer &R__b)
{
  // ***** Stream an object of class TSvtDataBlock.

  if (R__b.IsReading()) {
    Version_t R__v = R__b.ReadVersion(); if (R__v) { }
    R__b >> fNSvtTracks;
    if (fNSvtTracks > 0) {
      fSvtTrackList->Streamer(R__b);
    }
    R__b >> fEEWord;

    R__b >> fNXftTracks;
    if (fNXftTracks > 0) {
      fXftTrackList->Streamer(R__b);
    }
  }
  else {
    R__b.WriteVersion(TSvtDataBlock::IsA());
    R__b << fNSvtTracks;
    if (fNSvtTracks > 0) {
      fSvtTrackList->Streamer(R__b);
    }
    R__b << fEEWord;

    R__b << fNXftTracks;
    if (fNXftTracks > 0) {
      fXftTrackList->Streamer(R__b);
    }
  }
}

//_____________________________________________________________________________
TSvtDataBlock::TSvtDataBlock() : fNSvtTracks(0), fNXftTracks(0), fEEWord(0)
{
  // ****** Constructor

  fSvtTrackList = new TClonesArray("TSvtTrack", 100);
  fSvtTrackList->BypassStreamer(kFALSE);
  fXftTrackList = new TClonesArray("TSvXtTrack", 100);
  fXftTrackList->BypassStreamer(kFALSE);
  for(Int_t i=0;i<4;i++)
    Beam[i]=0;
}

//_____________________________________________________________________________
TSvtDataBlock::~TSvtDataBlock() {
  // ****** Destructor

  fSvtTrackList->Delete();
  delete fSvtTrackList;

  fXftTrackList->Delete();
  delete fXftTrackList;
}

//_____________________________________________________________________________
void TSvtDataBlock::Clear(Option_t *opt) {
  // ****** clear Data block

  fNSvtTracks = 0;
  fNXftTracks = 0;
  fEEWord     = 0;
  fSvtTrackList->Clear(opt);
  fXftTrackList->Clear(opt);
  for(Int_t i=0;i<4;i++)
    Beam[i]=0;
}

//_____________________________________________________________________________
void TSvtDataBlock::Print(Option_t* opt) const {
  // ****** Print content
  // Print SVT and XFT track quantities in a columnar style.
  // Run/Event numbers will be printed by the header block

  // SVT Tracks first
  cout << "--------- SvtDataBlock: # of SVT Tracks = " 
       << dec << fSvtTrackList->GetEntriesFast() << endl;
  TSvtDataBlock::Print(fSvtTrackList, opt);

  // Then XFT
  cout << "--------- SvtDataBlock: # of XFT Tracks = " 
       << dec << fXftTrackList->GetEntriesFast() << endl;
  TSvtDataBlock::Print(fXftTrackList, opt);
  for(Int_t i=0;i<4;i++)
    cout<<"Beam component %d: %f\n",i,Beam[i];
}

//_____________________________________________________________________________
void TSvtDataBlock::Print(TClonesArray *vec, Option_t *opt) const {
  // ****** Convenience
  int nt = vec->GetEntriesFast();
  if (nt) {
    vec->At(0)->Print("banner");
    for (int i = 0; i < nt; i++) {
      cout << setw(3) << dec << i+1;
      vec->At(i)->Print(opt);
    }
  }
}

//____________________________________________________________________________
void TSvtDataBlock::SetBeamSpot(Float_t *val){
  for(Int_t i=0;i<4;i++)
    Beam[i]=val[i];
}

//_____________________________________________________________________________
void TSvtDataBlock::ForceLoad() {
  // do nothing, only need this method to be non-inlined...
}