NavState.cxx

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///
/// \file    NavState.cxx
/// \brief   Holds information about what action to take next.
/// \version $Id: NavState.cxx,v 1.3 2011-09-01 22:17:55 brebel Exp $
/// \author  messier@indiana.edu
///
#include "nutools/EventDisplayBase/NavState.h"

#include "TROOT.h"
#include "TApplication.h"

namespace evdb{

  static int gsNavState    = 0;
  static int gsTargetRun   = 0;
  static int gsTargetEvent = 0;

  //......................................................................

  int NavState::Which() { return gsNavState; }

  //......................................................................

  void NavState::Set(int which)
  {
    // only allow the state to change if it has not been previously set
    // to kSEQUENTIAL_ONLY, this should be made more intelligent, ie
    // if we can only do sequential access because we are using the 
    // socket input source, then we shouldn't be allowed to press the
    // other buttons
    if(gsNavState != kSEQUENTIAL_ONLY)
      gsNavState = which;

    gROOT->GetApplication()->Terminate();
  }

  //......................................................................

  void NavState::SetTarget(int run, int event)
  {
    gsTargetRun = run;
    gsTargetEvent = event;
  }

  //......................................................................

  int NavState::TargetRun() { return gsTargetRun; }

  //......................................................................

  int NavState::TargetEvent() { return gsTargetEvent; }

}// namespace
////////////////////////////////////////////////////////////////////////