TOptPointerVector.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/TPointerVector.h>
 
 
namespace istd
{
 
 
template<typename Pointer>
class TOptDeleteAdapter
{
public:
    struct ElementType
    {
        Pointer* pointer;
        bool releaseFlag;
    };
 
    static Pointer* GetPtr(const ElementType& element)
    {
        return element.pointer;
    }
 
    static Pointer* release(const ElementType& element)
    {
        return GetPtr(element);
    }
 
    static void Delete(const ElementType& element)
    {
        if (element.releaseFlag){
            delete element.pointer;
        }
    }
};
 
 
template <typename Pointer>
class TOptPointerVector: public TPointerVector<Pointer, TOptDeleteAdapter<Pointer> >
{
public:
    typedef TPointerVector<Pointer, TOptDeleteAdapter<Pointer> > BaseClass;
 
    void SetAt(int index, Pointer* pointer, bool releaseFlag = false);
    void PushBack(Pointer* pointer, bool releaseFlag = false);
    void InsertAt(int index, Pointer* pointer, bool releaseFlag = false);
};
 
 
// public methods
 
template <typename Pointer>
void TOptPointerVector<Pointer>::SetAt(int index, Pointer* pointer, bool releaseFlag)
{
    typename TOptDeleteAdapter<Pointer>::ElementType element;
    element.pointer = pointer;
    element.releaseFlag = releaseFlag;
 
    BaseClass::SetElementAt(index, element);
}
 
 
template <typename Pointer>
void TOptPointerVector<Pointer>::PushBack(Pointer* pointer, bool releaseFlag)
{
    typename TOptDeleteAdapter<Pointer>::ElementType element;
    element.pointer = pointer;
    element.releaseFlag = releaseFlag;
 
    BaseClass::PushBack(element);
}
 
 
template <typename Pointer>
void TOptPointerVector<Pointer>::InsertAt(int index, Pointer* pointer, bool releaseFlag)
{
    typename TOptDeleteAdapter<Pointer>::ElementType element;
    element.pointer = pointer;
    element.releaseFlag = releaseFlag;
 
    BaseClass::InsertElementAt(index, element);
}
 
 
} // namespace istd