albaOpContextStack.h

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/*=========================================================================
 
 Program: ALBA (Agile Library for Biomedical Applications)
 Module: albaOpContextStack
 Authors: Silvano Imboden
 
 Copyright (c) BIC
 All rights reserved. See Copyright.txt or
 
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef __albaOpContextStack_H__
#define __albaOpContextStack_H__
 
#include "albaDefines.h"
 
//----------------------------------------------------------------------------
// forward references :
//----------------------------------------------------------------------------
class  albaOp;
struct albaOpContext;
//----------------------------------------------------------------------------
// albaOpContextStack :
//----------------------------------------------------------------------------
class ALBA_EXPORT albaOpContextStack
{
public:
         albaOpContextStack();
virtual ~albaOpContextStack(); 
   
  albaOp* Caller(); 
  void    Clear(); 
  void   Push(albaOp *caller);
  void   Pop();
 
   void   Undo_Push(albaOp* op);
   albaOp* Undo_Pop();
   void   Undo_Clear();
   bool   Undo_IsEmpty();
   
   void   Redo_Push(albaOp* op);
   albaOp* Redo_Pop();
   void   Redo_Clear();
   bool   Redo_IsEmpty();
 
protected:
  albaOpContext *m_Context;
};
#endif