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

#ifndef QSTANDARDITEMMODEL_P_H

#define QSTANDARDITEMMODEL_P_H

//

//  W A R N I N G

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

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "private/qabstractitemmodel_p.h"

#ifndef QT_NO_STANDARDITEMMODEL

#include <private/qwidgetitemdata_p.h>

#include <QtCore/qlist.h>

#include <QtCore/qpair.h>

#include <QtCore/qstack.h>

#include <QtCore/qvariant.h>

#include <QtCore/qvector.h>

QT_BEGIN_NAMESPACE

class QStandardItemPrivate

{

    Q_DECLARE_PUBLIC(QStandardItem)

public:

    inline QStandardItemPrivate()

        : model(0),

          parent(0),

          rows(0),

          columns(0),

          q_ptr(0),

          lastIndexOf(2)

        { }

    virtual ~QStandardItemPrivate();

    inline int childIndex(int row, int column) const {

        if ((row < 0) || (column < 0)

            || (row >= rowCount()) || (column >= columnCount())) {

            return -1;

        }

        return (row * columnCount()) + column;

    }

    inline int childIndex(const QStandardItem *child) {

        int start = qMax(0, lastIndexOf -2);

        lastIndexOf = children.indexOf(const_cast<QStandardItem*>(child), start);

        if (lastIndexOf == -1 && start != 0)

            lastIndexOf = children.lastIndexOf(const_cast<QStandardItem*>(child), start);

        return lastIndexOf;

    }

    QPair<int, int> position() const;

    void setChild(int row, int column, QStandardItem *item,

                  bool emitChanged = false);

    inline int rowCount() const {

        return rows;

    }

    inline int columnCount() const {

        return columns;

    }

    void childDeleted(QStandardItem *child);

    void setModel(QStandardItemModel *mod);

    inline void setParentAndModel(

        QStandardItem *par,

        QStandardItemModel *mod) {

        setModel(mod);

        parent = par;

    }

    void changeFlags(bool enable, Qt::ItemFlags f);

    void setItemData(const QMap<int, QVariant> &roles);

    const QMap<int, QVariant> itemData() const;

    bool insertRows(int row, int count, const QList<QStandardItem*> &items);

    bool insertRows(int row, const QList<QStandardItem*> &items);

    bool insertColumns(int column, int count, const QList<QStandardItem*> &items);

    void sortChildren(int column, Qt::SortOrder order);

    QStandardItemModel *model;

    QStandardItem *parent;

    QVector<QWidgetItemData> values;

    QVector<QStandardItem*> children;

    int rows;

    int columns;

    QStandardItem *q_ptr;

    int lastIndexOf;

};

class QStandardItemModelPrivate : public QAbstractItemModelPrivate

{

    Q_DECLARE_PUBLIC(QStandardItemModel)

public:

    QStandardItemModelPrivate();

    virtual ~QStandardItemModelPrivate();

    void init();

    inline QStandardItem *createItem() const {

        return itemPrototype ? itemPrototype->clone() : new QStandardItem;

    }

    inline QStandardItem *itemFromIndex(const QModelIndex &index) const {

        Q_Q(const QStandardItemModel);

        if (!index.isValid())

            return root.data();

        if (index.model() != q)

            return 0;

        QStandardItem *parent = static_cast<QStandardItem*>(index.internalPointer());

        if (parent == 0)

            return 0;

        return parent->child(index.row(), index.column());

    }

    void sort(QStandardItem *parent, int column, Qt::SortOrder order);

    void itemChanged(QStandardItem *item);

    void rowsAboutToBeInserted(QStandardItem *parent, int start, int end);

    void columnsAboutToBeInserted(QStandardItem *parent, int start, int end);

    void rowsAboutToBeRemoved(QStandardItem *parent, int start, int end);

    void columnsAboutToBeRemoved(QStandardItem *parent, int start, int end);

    void rowsInserted(QStandardItem *parent, int row, int count);

    void columnsInserted(QStandardItem *parent, int column, int count);

    void rowsRemoved(QStandardItem *parent, int row, int count);

    void columnsRemoved(QStandardItem *parent, int column, int count);

    void _q_emitItemChanged(const QModelIndex &topLeft,

                            const QModelIndex &bottomRight);

    void decodeDataRecursive(QDataStream &stream, QStandardItem *item);

    QVector<QStandardItem*> columnHeaderItems;

    QVector<QStandardItem*> rowHeaderItems;

    QScopedPointer<QStandardItem> root;

    const QStandardItem *itemPrototype;

    int sortRole;

};

QT_END_NAMESPACE

#endif // QT_NO_STANDARDITEMMODEL

#endif // QSTANDARDITEMMODEL_P_H