/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** use the contact form at http://qt.digia.com/contact-us.
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** 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
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
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****************************************************************************/

#ifndef QABSTRACTPROXYMODEL_H
#define QABSTRACTPROXYMODEL_H

#include <QtCore/qabstractitemmodel.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


#ifndef QT_NO_PROXYMODEL

class QAbstractProxyModelPrivate;
class QItemSelection;

class Q_CORE_EXPORT QAbstractProxyModel : public QAbstractItemModel
{
    Q_OBJECT
    Q_PROPERTY(QAbstractItemModel* sourceModel READ sourceModel WRITE setSourceModel NOTIFY sourceModelChanged)

public:
    explicit 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 setItemData(const QModelIndex& index, const QMap<int, QVariant> &roles);
    bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role = Qt::EditRole);

    QModelIndex buddy(const QModelIndex &index) const;
    bool canFetchMore(const QModelIndex &parent) const;
    void fetchMore(const QModelIndex &parent);
    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
    QSize span(const QModelIndex &index) const;
    bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
    QModelIndex sibling(int row, int column, const QModelIndex &idx) const;

    QMimeData* mimeData(const QModelIndexList &indexes) const;
    QStringList mimeTypes() const;
    Qt::DropActions supportedDropActions() const;

Q_SIGNALS:
    void sourceModelChanged(
#if !defined(qdoc)
        QPrivateSignal
#endif
    );

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
