/****************************************************************************
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** This file is part of the QtGui module of the Qt Toolkit.
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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
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****************************************************************************/

#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
