mitkUndoModel.h

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/*============================================================================
 
The Medical Imaging Interaction Toolkit (MITK)
 
Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.
 
Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.
 
============================================================================*/
 
#ifndef mitkUndoModel_h
#define mitkUndoModel_h
 
#include <mitkCommon.h>
#include <mitkOperation.h>
#include <itkObject.h>
#include <itkObjectFactory.h>
 
namespace mitk
{
  class UndoStackItem;
  class OperationEvent;
  class OperationActor;
 
  class MITKCORE_EXPORT UndoModel : public itk::Object
  {
  public:
    mitkClassMacroItkParent(UndoModel, itk::Object);
 
    // no New Macro because this is an abstract class!
 
    virtual bool SetOperationEvent(UndoStackItem *stackItem) = 0;
 
    virtual bool Undo() = 0;
 
    virtual bool Undo(bool fine) = 0;
 
    virtual bool Redo() = 0;
 
    virtual bool Redo(bool fine) = 0;
 
    virtual void Clear() = 0;
 
    virtual void ClearRedoList() = 0;
 
    virtual bool RedoListEmpty() = 0;
 
    virtual bool UndoListEmpty() = 0;
 
    virtual std::size_t GetUndoLimit() const = 0;
 
    virtual void SetUndoLimit(std::size_t limit) = 0;
 
    virtual int GetLastObjectEventIdInList() = 0;
 
    virtual int GetLastGroupEventIdInList() = 0;
 
    virtual OperationEvent *GetLastOfType(OperationActor *destination, OperationType opType) = 0;
 
    virtual unsigned int RemoveInvalidOperations() = 0;
 
  protected:
    UndoModel(){};
    ~UndoModel() override{};
  };
 
} // namespace mitk
#endif