CChangeNotifier.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 <istd/IChangeable.h>
 
 
namespace istd
{
 
 
class CChangeNotifier
{
public:
       explicit CChangeNotifier(IChangeable* changeablePtr, const IChangeable::ChangeSet* changeSetPtr = &IChangeable::GetAnyChange());
       ~CChangeNotifier();
 
       bool IsValid() const;
 
       void Reset();
       
       void Abort();
 
private:
       // blocked copy constructor
       CChangeNotifier(const CChangeNotifier& notifier);
 
       IChangeable* m_changeablePtr = nullptr;
       const IChangeable::ChangeSet m_changeSet;
};
 
 
inline CChangeNotifier::CChangeNotifier(IChangeable* changeablePtr, const IChangeable::ChangeSet* changeSetPtr)
:      m_changeablePtr(changeablePtr),
       m_changeSet(*changeSetPtr)
{
       Q_ASSERT(changeSetPtr != NULL);
 
       if (m_changeablePtr != NULL){
              m_changeablePtr->BeginChanges(m_changeSet);
       }
}
 
 
inline CChangeNotifier::~CChangeNotifier()
{
       if (m_changeablePtr != NULL){
              m_changeablePtr->EndChanges(m_changeSet);
       }
}
 
 
} // namespace istd