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

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** GNU Lesser General Public License Usage

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** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

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** $QT_END_LICENSE$

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

#ifndef QPROXYMODEL_H

#define QPROXYMODEL_H

#include <QtCore/qabstractitemmodel.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_PROXYMODEL

class QProxyModelPrivate;

class Q_GUI_EXPORT QProxyModel : public QAbstractItemModel

{

    Q_OBJECT

public:

    explicit QProxyModel(QObject *parent = 0);

    ~QProxyModel();

    virtual void setModel(QAbstractItemModel *model);

    QAbstractItemModel *model() const;

    // implementing model interface

    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;

    QModelIndex parent(const QModelIndex &child) const;

    int rowCount(const QModelIndex &parent = QModelIndex()) const;

    int columnCount(const QModelIndex &parent = QModelIndex()) const;

    bool hasChildren(const QModelIndex &parent = QModelIndex()) const;

    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;

    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);

    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;

    bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,

                       int role = Qt::EditRole);

    QStringList mimeTypes() const;

    QMimeData *mimeData(const QModelIndexList &indexes) const;

    bool dropMimeData(const QMimeData *data, Qt::DropAction action,

                      int row, int column, const QModelIndex &parent);

    Qt::DropActions supportedDropActions() const;

    bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex());

    bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex());

    void fetchMore(const QModelIndex &parent);

    Qt::ItemFlags flags(const QModelIndex &index) const;

    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);

    QModelIndexList match(const QModelIndex &start, int role, const QVariant &value,

                          int hits = 1, Qt::MatchFlags flags =

                          Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const;

    QSize span(const QModelIndex &index) const;

    bool submit();

    void revert();

#ifdef Q_NO_USING_KEYWORD

    inline QObject *parent() const { return QObject::parent(); }

#else

    using QObject::parent;

#endif

protected:

    QProxyModel(QProxyModelPrivate &, QObject *parent = 0);

    QModelIndex setProxyModel(const QModelIndex &source_index) const;

    QModelIndex setSourceModel(const QModelIndex &proxy_index) const;

    void connectToModel(const QAbstractItemModel *model) const;

    void disconnectFromModel(const QAbstractItemModel *model) const;

private:

    Q_DECLARE_PRIVATE(QProxyModel)

    Q_DISABLE_COPY(QProxyModel)

    Q_PRIVATE_SLOT(d_func(), void _q_sourceDataChanged(const QModelIndex&,const QModelIndex&))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeInserted(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsInserted(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeRemoved(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsRemoved(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeInserted(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsInserted(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeRemoved(const QModelIndex&,int,int))

    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsRemoved(const QModelIndex&,int,int))

};

#endif // QT_NO_PROXYMODEL

QT_END_NAMESPACE

QT_END_HEADER

#endif // QPROXYMODEL_H