IUndoManager.h

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// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ACF-Commercial
#pragma once
 
 
// ACF includes
#include <idoc/IDocumentStateComparator.h>
 
 
namespace idoc
{
 
 
class IUndoManager: virtual public IDocumentStateComparator
{
public:
       virtual int GetAvailableUndoSteps() const = 0;
       
       virtual int GetAvailableRedoSteps() const = 0;
       virtual QString GetUndoLevelDescription(int stepIndex) const = 0;
       
       virtual QString GetRedoLevelDescription(int stepIndex) const = 0;
       
       virtual void ResetUndo() = 0;
       
       virtual bool DoUndo(int steps = 1) = 0;
       
       virtual bool DoRedo(int steps = 1) = 0;
};
 
 
typedef istd::TUniqueInterfacePtr<idoc::IUndoManager> IUndoManagerUniquePtr;
typedef istd::TSharedInterfacePtr<idoc::IUndoManager> IUndoManagerSharedPtr;
 
 
} // namespace idoc