/****************************************************************************
**
** Copyright (C) 1992-2004 Trolltech AS. All rights reserved.
**
** This file is part of the item views module of the Qt Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef QPROXYMODEL_H
#define QPROXYMODEL_H

#include <qabstractitemmodel.h>

class QProxyModelPrivate;

class Q_GUI_EXPORT QProxyModel : public QAbstractItemModel
{
    Q_OBJECT

public:
    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) const;
    QModelIndex parent(const QModelIndex &child) const;

    int rowCount(const QModelIndex &parent) const;
    int columnCount(const QModelIndex &parent) const;
    bool hasChildren(const QModelIndex &parent) const;

    QVariant data(const QModelIndex &index, int role) const;
    bool setData(const QModelIndex &index, const QVariant &value, int role);

    QVariant headerData(int section, Qt::Orientation orientation, int role) const;
    bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role);

    QStringList mimeTypes() const;
    QMimeData *mimeData(const QModelIndexList &indexes) const;
    bool dropMimeData(const QMimeData *data, QDrag::DropAction action,
                      int row, const QModelIndex &parent);
    QDrag::DropActions supportedDropActions() const;

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

    void fetchMore(const QModelIndex &parent);
    QAbstractItemModel::ItemFlags flags(const QModelIndex &index) const;

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

    QModelIndexList match(const QModelIndex &start, int role, const QVariant &value,
                          int hits, QAbstractItemModel::MatchFlags flags) const;

    QSize span(const QModelIndex &index) const;

public slots:
    bool submit();
    void revert();

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

private:
    Q_DECLARE_PRIVATE(QProxyModel)
    Q_DISABLE_COPY(QProxyModel)
};

#endif
