AliMpGraphContext.h

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/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

// $Id$
// $MpId: AliMpGraphContext.h,v 1.11 2006/05/24 13:58:13 ivana Exp $


#ifndef ALI_MP_GRAPH_CONTEXT_H
#define ALI_MP_GRAPH_CONTEXT_H

#include <TObject.h>

#include "AliMpExMap.h"

#include <TVector2.h>

class MPainter;

class AliMpGraphContext : public TObject
{
 public:
  void Push() const;
  void Pop();
  static AliMpGraphContext *Instance();

  //
  // set methods
  //
  void SetPadPosition(const TVector2 &position){fPadPosition=position;}
  void SetPadDimensions(const TVector2 &dimensions){fPadDimensions=dimensions;}
  void SetRealPosition(const TVector2 &position){fRealPosition=position;}
  void SetRealDimensions(const TVector2 &dimensions){fRealDimensions=dimensions;}
  void SetColor(Int_t color){fColor=color;}

  //
  // get methods
  //

  TVector2 GetPadPosition() const {return fPadPosition;}
  TVector2 GetPadDimensions() const {return fPadDimensions;}
  TVector2 GetRealPosition() const{return fRealPosition;}
  TVector2 GetRealDimensions() const{return fRealDimensions;}
  Int_t GetColor() const {return fColor;}

  //methods
  TVector2 RealToPad(const TVector2 &position) const;
  void RealToPad(const TVector2 &position
     ,const TVector2 &dimensions,
     TVector2 &padPosition,
     TVector2 &padDimensions) const;
  void SetPadPosForReal(const TVector2 &position,const TVector2 &dimensions);

 protected:
  AliMpGraphContext(const AliMpGraphContext& right);
  AliMpGraphContext&  operator = (const AliMpGraphContext& right);

 private:
  //private constructor (not instanciable from outside)
  AliMpGraphContext();

  static AliMpGraphContext* fgInstance; 
  static TObjArray          fgStack;    
  static Int_t              fgStackSize;

  //data members
  Int_t    fColor;          
  TVector2 fPadPosition;    
  TVector2 fPadDimensions;  

  TVector2 fRealPosition;   
  TVector2 fRealDimensions; 

  ClassDef(AliMpGraphContext,1) // Correspondance pad area/real world
};

#endif //ALI_MP_GRAPH_CONTEXT_H