#define ProofTest_cxx
// The class definition in ProofTest.h has been generated automatically
// by the ROOT utility TTree::MakeSelector(). This class is derived
// from the ROOT class TSelector. For more information on the TSelector
// framework see $ROOTSYS/README/README.SELECTOR or the ROOT User Manual.

// The following methods are defined in this file:
//    Begin():        called everytime a loop on the tree starts,
//                    a convenient place to create your histograms.
//    SlaveBegin():   called after Begin(), when on PROOF called only on the
//                    slave servers.
//    Process():      called for each event, in this function you decide what
//                    to read and fill your histograms.
//    SlaveTerminate: called at the end of the loop on the tree, when on PROOF
//                    called only on the slave servers.
//    Terminate():    called at the end of the loop on the tree,
//                    a convenient place to draw/fit your histograms.
//
// To use this file, try the following session on your Tree T:
//
// Root > T->Process("ProofTest.C")
// Root > T->Process("ProofTest.C","some options")
// Root > T->Process("ProofTest.C+")
//

#include "ProofTest.h"
#include <TH2.h>
#include <TStyle.h>


void ProofTest::Begin(TTree * /*tree*/)
{
   // The Begin() function is called at the start of the query.
   // When running with PROOF Begin() is only called on the client.
   // The tree argument is deprecated (on PROOF 0 is passed).

   TString option = GetOption();



}

void ProofTest::SlaveBegin(TTree * tree)
{
   // The SlaveBegin() function is called after the Begin() function.
   // When running with PROOF SlaveBegin() is called on each slave server.
   // The tree argument is deprecated (on PROOF 0 is passed).

   Init(tree);

   TString option = GetOption();
   myHist = new TH1F("myHist","test histogram", 100, 0, 3000000);
   fOutput->Add(myHist);
}

Bool_t ProofTest::Process(Long64_t entry)
{
   // The Process() function is called for each entry in the tree (or possibly
   // keyed object in the case of PROOF) to be processed. The entry argument
   // specifies which entry in the currently loaded tree is to be processed.
   // It can be passed to either ProofTest::GetEntry() or TBranch::GetEntry()
   // to read either all or the required parts of the data. When processing
   // keyed objects with PROOF, the object is already loaded and is available
   // via the fObject pointer.
   //
   // This function should contain the "body" of the analysis. It can contain
   // simple or elaborate selection criteria, run algorithms on the data
   // of the event and typically fill histograms.
   //
   // The processing can be stopped by calling Abort().
   //
   // Use fStatus to set the return value of TTree::Process().
   //
   // The return value is currently not used.

  fChain->GetTree()->GetEntry(entry);
  //b_header->GetEntry(entry);
    //  GetEntry(entry);
  for(int i=0; i<Jet_C4_N; ++i)
    myHist->Fill(Jet_C4_p_T->at(i));

  //  for(int i=0; i<1000; ++i)
  //    cos(sin(cos(sin(cos(2.1))))); // some slow operation

   return kTRUE;
}

void ProofTest::SlaveTerminate()
{
   // The SlaveTerminate() function is called after all entries or objects
   // have been processed. When running with PROOF SlaveTerminate() is called
   // on each slave server.

}

void ProofTest::Terminate()
{
   // The Terminate() function is the last function to be called during
   // a query. It always runs on the client, it can be used to present
   // the results graphically or save the results to file.

  //  fOutput->FindObject("myHist")->Draw();
  myHist = dynamic_cast<TH1F*>(fOutput->FindObject("myHist"));
  myHist->Draw();


}