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diff --git a/src/listeners/tablemodellistener.h b/src/listeners/tablemodellistener.h
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+++ b/src/listeners/tablemodellistener.h
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+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2008-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  Copyright (C) 2011-2014  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GUI_LISTENERS_TABLEMODELLISTENER_H
+#define GUI_LISTENERS_TABLEMODELLISTENER_H
+
+#include <set>
+#include <vector>
+
+#include "localconsts.h"
+
+class Widget;
+
+class TableModelListener notfinal
+{
+    public:
+        /**
+         * Must be invoked by the TableModel whenever a global change is about
+         * to occur or has occurred (e.g., when a row or column is being
+         * removed or added).
+         *
+         * This method is triggered twice, once before and once after
+         * the update.
+         *
+         * \param completed whether we are signalling the end of the update
+         */
+        virtual void modelUpdated(const bool completed) = 0;
+
+        virtual ~TableModelListener()
+        { }
+};
+
+#endif  // GUI_LISTENERS_TABLEMODELLISTENER_H