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#ifndef QTREEWIDGETITEMITERATOR_P_H

#define QTREEWIDGETITEMITERATOR_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <QtCore/qstack.h>

#ifndef QT_NO_TREEWIDGET

#include "qtreewidgetitemiterator.h"

QT_BEGIN_NAMESPACE

class QTreeModel;

class QTreeWidgetItem;

class QTreeWidgetItemIteratorPrivate {

    Q_DECLARE_PUBLIC(QTreeWidgetItemIterator)

public:

    QTreeWidgetItemIteratorPrivate(QTreeWidgetItemIterator *q, QTreeModel *model)

        : m_currentIndex(0), m_model(model), q_ptr(q)

    {

    }

    QTreeWidgetItemIteratorPrivate(const QTreeWidgetItemIteratorPrivate& other)

        : m_currentIndex(other.m_currentIndex), m_model(other.m_model),

          m_parentIndex(other.m_parentIndex), q_ptr(other.q_ptr)

    {

    }

    QTreeWidgetItemIteratorPrivate &operator=(const QTreeWidgetItemIteratorPrivate& other)

    {

        m_currentIndex = other.m_currentIndex;

        m_parentIndex = other.m_parentIndex;

        m_model = other.m_model;

        return (*this);

    }

    ~QTreeWidgetItemIteratorPrivate()

    {

    }

    QTreeWidgetItem* nextSibling(const QTreeWidgetItem* item) const;

    void ensureValidIterator(const QTreeWidgetItem *itemToBeRemoved);

    QTreeWidgetItem *next(const QTreeWidgetItem *current);

    QTreeWidgetItem *previous(const QTreeWidgetItem *current);

private:

    int             m_currentIndex;

    QTreeModel     *m_model;        // This iterator class should not have ownership of the model.

    QStack<int>     m_parentIndex;

    QTreeWidgetItemIterator *q_ptr;

};

QT_END_NAMESPACE

#endif // QT_NO_TREEWIDGET

#endif //QTREEWIDGETITEMITERATOR_P_H