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qtreewidgetitemiterator_p.h

/****************************************************************************
**
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**
** This file is part of the QtGui module of the Qt Toolkit.
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** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
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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"

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)
    {

    }

    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;
};

#endif // QT_NO_TREEWIDGET
#endif //QTREEWIDGETITEMITERATOR_P_H

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