CChangeGroup.h

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/********************************************************************************
**  This file is part of the ICF Framework. Copyright (C) Witold Gantzke & Kirill Lepskiy
**  ICF Framework may be used under the terms of the LGPL License v. 2.1 by the Free Software Foundation.
********************************************************************************/
 
#pragma once
 
 
// ICF includes
#include <istd/IChangeable.h>
 
 
namespace istd
{
 
 
class [[maybe_unused]] CChangeGroup
{
public:
    explicit CChangeGroup(IChangeable* changeablePtr, const IChangeable::ChangeSet* changeSetPtr = &IChangeable::GetNoChanges());
    ~CChangeGroup();
 
    bool IsValid() const;
 
    void Reset();
 
private:
    // blocked copy constructor
    CChangeGroup(const CChangeGroup& group);
 
    IChangeable* m_changeablePtr;
    const IChangeable::ChangeSet& m_changeSet;
};
 
 
inline CChangeGroup::CChangeGroup(IChangeable* changeablePtr, const IChangeable::ChangeSet* changeSetPtr)
:   m_changeablePtr(changeablePtr),
    m_changeSet(*changeSetPtr)
{
    Q_ASSERT(changeSetPtr != nullptr);
 
    if (m_changeablePtr != nullptr){
        m_changeablePtr->BeginChangeGroup(m_changeSet);
    }
}
 
 
inline CChangeGroup::~CChangeGroup()
{
    if (m_changeablePtr != nullptr){
        m_changeablePtr->EndChangeGroup(m_changeSet);
    }
}
 
 
} // namespace istd