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****************************************************************************/

#ifndef Q3CLEANUPHANDLER_H

#define Q3CLEANUPHANDLER_H

#include <QtCore/qlist.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Qt3SupportLight)

template<class T>

class Q3CleanupHandler

{

    QListData p;

public:

    inline Q3CleanupHandler()

    { p.d = 0; }

    ~Q3CleanupHandler()

    {

        if (p.d) {

            for (int i = 0; i < p.size(); ++i) {

                T** t = static_cast<T**>(*p.at(i));

                delete *t;

                *t = 0;

            }

            qFree(p.d);

            p.d = 0;

        }

    }

    T* add(T **object)

    {

        if (!p.d) {

            p.d = &QListData::shared_null;

            p.d->ref.ref();

            p.detach();

        }

        *p.prepend() =  object;

        return *object;

    }

    void remove(T **object)

    {

        if (p.d)

            for (int i = 0; i < p.size(); ++i)

                if (*p.at(i) == object)

                    p.remove(i--);

    }

};

template<class T>

class Q3SingleCleanupHandler

{

    T **object;

public:

    inline Q3SingleCleanupHandler()

    : object(0) {}

    inline ~Q3SingleCleanupHandler()

    { if (object) { delete *object; *object = 0; } }

    inline T* set(T **o)

    { object = o; return *object; }

    inline void reset() { object = 0; }

};

QT_END_NAMESPACE

QT_END_HEADER

#endif //Q3CLEANUPHANDLER_H