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diff --git a/src/libs/modelinglib/qmt/controller/selection.h b/src/libs/modelinglib/qmt/controller/selection.h
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+/***************************************************************************
+**
+** Copyright (C) 2015 Jochen Becher
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.  For licensing terms and
+** conditions see http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef QMT_SELECTION_H
+#define QMT_SELECTION_H
+
+#include "qmt/infrastructure/uid.h"
+
+#include <QList>
+
+namespace qmt {
+
+class QMT_EXPORT Selection
+{
+public:
+    class Index
+    {
+    public:
+        Index(const Uid &elementKey, const Uid &ownerKey)
+            : m_elementKey(elementKey),
+              m_ownerKey(ownerKey)
+        {
+        }
+
+        Uid elementKey() const { return m_elementKey; }
+        Uid ownerKey() const { return m_ownerKey; }
+
+    private:
+        Uid m_elementKey;
+        Uid m_ownerKey;
+    };
+
+protected:
+    Selection();
+
+public:
+    ~Selection();
+
+    bool isEmpty() const { return m_indices.isEmpty(); }
+    QList<Index> indices() const { return m_indices; }
+    void setIndices(const QList<Index> &indices);
+
+    void clear();
+    void append(const Index &index);
+    void append(const Uid &elementKey, const Uid &ownerKey);
+
+private:
+    QList<Index> m_indices;
+};
+
+} // namespace qmt
+
+#endif // QMT_SELECTION_H