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diff --git a/dbaccess/source/ui/querydesign/QuerySizeTabWinUndoAct.hxx b/dbaccess/source/ui/querydesign/QuerySizeTabWinUndoAct.hxx
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+++ b/dbaccess/source/ui/querydesign/QuerySizeTabWinUndoAct.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: QuerySizeTabWinUndoAct.hxx,v $
+ * $Revision: 1.5 $
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+#ifndef DBAUI_QUERYSIZETABWINUNDOACT_HXX
+#define DBAUI_QUERYSIZETABWINUNDOACT_HXX
+
+#ifndef DBAUI_QUERYDESIGNUNDOACTION_HXX
+#include "QueryDesignUndoAction.hxx"
+#endif
+#ifndef _DBU_QRY_HRC_
+#include "dbu_qry.hrc"
+#endif
+
+namespace dbaui
+{
+
+    // ================================================================================================
+    // OQuerySizeTabWinUndoAct - Undo-Klasse fuer Groessenveraenderung eines TabWins
+    class OTableWindow;
+    class OJoinSizeTabWinUndoAct : public OQueryDesignUndoAction
+    {
+        Point           m_ptNextPosition;
+        Size            m_szNextSize;
+        OTableWindow*   m_pTabWin;
+
+    protected:
+        inline void ToggleSizePosition();
+
+    public:
+        OJoinSizeTabWinUndoAct(OJoinTableView* pOwner, const Point& ptOriginalPos, const Size& szOriginalSize, OTableWindow* pTabWin);
+        // Nebenbedingung : es darf nicht gescrollt worden sein, waehrend die neue Groesse/Position ermittelt wurde, das heisst, die Position
+        // hier sind physische, nicht logische Koordinaten
+        // (im Gegensatz zur QueryMoveTabWinUndoAct)
+
+        virtual void    Undo() { ToggleSizePosition(); }
+        virtual void    Redo() { ToggleSizePosition(); }
+    };
+
+    //------------------------------------------------------------------------------
+    inline OJoinSizeTabWinUndoAct::OJoinSizeTabWinUndoAct(OJoinTableView* pOwner, const Point& ptOriginalPos, const Size& szOriginalSize, OTableWindow* pTabWin)
+        :OQueryDesignUndoAction(pOwner, STR_QUERY_UNDO_SIZETABWIN)
+        ,m_ptNextPosition(ptOriginalPos)
+        ,m_szNextSize(szOriginalSize)
+        ,m_pTabWin(pTabWin)
+    {
+    }
+
+    //------------------------------------------------------------------------------
+    inline void OJoinSizeTabWinUndoAct::ToggleSizePosition()
+    {
+        Point ptNext = m_pTabWin->GetPosPixel();
+        Size szNext = m_pTabWin->GetSizePixel();
+
+        m_pOwner->Invalidate(INVALIDATE_NOCHILDREN);
+        m_pTabWin->SetPosSizePixel(m_ptNextPosition, m_szNextSize);
+        m_pOwner->Invalidate(INVALIDATE_NOCHILDREN);
+
+        m_ptNextPosition = ptNext;
+        m_szNextSize = szNext;
+    }
+}
+
+#endif //DBAUI_QUERYSIZETABWINUNDOACT_HXX
+
+