diff -r 000000000000 -r 1918ee327afb src/gui/itemviews/qabstractproxymodel.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/itemviews/qabstractproxymodel.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** 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