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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** 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
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights.  These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QABSTRACTPROXYMODEL_H
#define QABSTRACTPROXYMODEL_H

#include <QtCore/qabstractitemmodel.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_PROXYMODEL

class QAbstractProxyModelPrivate;
class QItemSelection;

class Q_GUI_EXPORT QAbstractProxyModel : public QAbstractItemModel
{
    Q_OBJECT

public:
    QAbstractProxyModel(QObject *parent = 0);
    ~QAbstractProxyModel();

    virtual void setSourceModel(QAbstractItemModel *sourceModel);
    QAbstractItemModel *sourceModel() const;

    virtual QModelIndex mapToSource(const QModelIndex &proxyIndex) const = 0;
    virtual QModelIndex mapFromSource(const QModelIndex &sourceIndex) const = 0;

    virtual QItemSelection mapSelectionToSource(const QItemSelection &selection) const;
    virtual QItemSelection mapSelectionFromSource(const QItemSelection &selection) const;

    bool submit();
    void revert();

    QVariant data(const QModelIndex &proxyIndex, int role = Qt::DisplayRole) const;
    QVariant headerData(int section, Qt::Orientation orientation, int role) const;
    QMap<int, QVariant> itemData(const QModelIndex &index) const;
    Qt::ItemFlags flags(const QModelIndex &index) const;

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

protected:
    QAbstractProxyModel(QAbstractProxyModelPrivate &, QObject *parent);

private:
    Q_DECLARE_PRIVATE(QAbstractProxyModel)
    Q_DISABLE_COPY(QAbstractProxyModel)
    Q_PRIVATE_SLOT(d_func(), void _q_sourceModelDestroyed())
};

#endif // QT_NO_PROXYMODEL

QT_END_NAMESPACE

QT_END_HEADER

#endif // QABSTRACTPROXYMODEL_H