Reconstruction/MdcPatRec/TrkBase/include/TrkBase/TrkView.h

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//--------------------------------------------------------------------------
// File and Version Information:
//      $Id: TrkView.h,v 1.1.1.1 2005/04/21 06:01:42 zhangy Exp $
//
//  Description:
//  Class TrkView.  Simple struct to hold view information
//  in a bit
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Copyright Infomation;
//  Copyright (C) 2002  Lawrence Berkeley Laboratory
//
// Author(s): Dave Brown 10/25/02
//
//------------------------------------------------------------------------
 
#ifndef TRKVIEW_H
#define TRKVIEW_H
 
#include "TrkBase/TrkEnums.h"
 
class TrkView {
public:
  // construct from a view
  TrkView( TrkEnums::TrkViewInfo view = TrkEnums::noView );
  // construct from data
  TrkView( unsigned short& data );
  // copy and equivalence are OK
  TrkView( const TrkView& );
  TrkView& operator=( const TrkView& );
  virtual ~TrkView();
  // allow adding views
  void addView( TrkEnums::TrkViewInfo view );
  // accessor
  TrkEnums::TrkViewInfo view() const;
  // logical operations
  bool contains( const TrkView& other ) const;
  bool contains( TrkEnums::TrkViewInfo view ) const;
  bool operator==( const TrkView& other ) const;
  bool operator!=( const TrkView& other ) const;
  // direct accessor for binary comparisons
  unsigned short viewData() const { return _view; }
 
private:
  unsigned short _view;
  // some useful statics; make them public so they can be used
public:
  static const unsigned short _xyview;
  static const unsigned short _zview;
  static const unsigned short _bothview;
};
 
#endif