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diff --git a/src/gui/widgets/containerplacer.h b/src/gui/widgets/containerplacer.h
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+++ b/src/gui/widgets/containerplacer.h
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+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2007-2009  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_WIDGETS_CONTAINERPLACER_H
+#define GUI_WIDGETS_CONTAINERPLACER_H
+
+#include "localconsts.h"
+
+class BasicContainer2;
+class LayoutCell;
+class Widget;
+
+/**
+ * This class is a helper for adding widgets to nested tables in a window.
+ */
+class ContainerPlacer final
+{
+    public:
+        explicit ContainerPlacer(BasicContainer2 *c = nullptr,
+                                 LayoutCell *lc = nullptr) :
+            mContainer(c),
+            mCell(lc)
+        {}
+
+        /**
+         * Gets the pointed cell.
+         */
+        LayoutCell &getCell() A_WARN_UNUSED
+        { return *mCell; }
+
+        /**
+         * Returns a placer for the same container but to an inner cell.
+         */
+        ContainerPlacer at(const int x, const int y) A_WARN_UNUSED;
+
+        /**
+         * Adds the given widget to the container and places it in the layout.
+         * @see LayoutArray::place
+         */
+        LayoutCell &operator()(const int x, const int y, Widget *const wg,
+            const int w = 1, const int h = 1);
+
+    private:
+        BasicContainer2 *mContainer;
+        LayoutCell *mCell;
+};
+
+#endif  // GUI_WIDGETS_CONTAINERPLACER_H