MeVis/Foundation/Sources/ML/include/mlState.h

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// **InsertLicense** code
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
#ifndef __mlState_H
#define __mlState_H

// ML-includes
#ifndef __mlInitSystemML_H
#include "mlInitSystemML.h"
#endif

ML_START_NAMESPACE

class StateBuffer;

//-------------------------------------------------------------------------
//
//-------------------------------------------------------------------------
class State
{
  
public:
  
  //------------------------------------------------------

  //------------------------------------------------------
  
  MLEXPORT static MLErrorCode pushState(bool readEnvironmentVars) ML_RETURN_VALUE_SHOULD_BE_USED;
  
  MLEXPORT static MLErrorCode popState();
  
protected:
  
  friend MLint32  MLinit();
  
  friend void     MLdestroy();
  
  MLEXPORT static MLErrorCode _init();
  
  MLEXPORT static MLErrorCode _destroy();
  
private:
  
  MLEXPORT State();
  
  MLEXPORT ~State();
  
  MLEXPORT State(const State &);
  
  MLEXPORT State& operator=(const State &);
  
  MLEXPORT static StateBuffer* _getMLStateAndReset();
  
  MLEXPORT static bool         _restoreMLState(StateBuffer* &state);
};

ML_END_NAMESPACE

//-----------------------------------------------------------------------------------
//   Stream output for std::ostream
//-----------------------------------------------------------------------------------
namespace std {
  
  MLEXPORT ostream& operator<<(ostream& s, const ML_NAMESPACE::StateBuffer &sb);
  
}

#endif //of __mlState_H