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diff --git a/offapi/com/sun/star/view/XMultiSelectionSupplier.idl b/offapi/com/sun/star/view/XMultiSelectionSupplier.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef __com_sun_star_view_XMultiSelectionSupplier_idl__
+#define __com_sun_star_view_XMultiSelectionSupplier_idl__
+
+#include <com/sun/star/view/XSelectionSupplier.idl>
+#include <com/sun/star/container/XEnumeration.idl>
+
+
+module com {  module sun {  module star {  module view {
+
+
+/** makes it possible to append and remove objects from a selection.
+
+    <p>The method XSelectionSupplier::setSelection() for an
+    instance that also supports XMultiSelectionSupplier should
+    be implemented that it also takes either a selectable object or a sequence
+    of selectable objects.</p>
+
+    <p>Adding an object more than once to a selection should not toggle the
+    selection for that object but only select it once</p>
+ */
+interface XMultiSelectionSupplier: XSelectionSupplier
+{
+
+    /** adds the object or the objects represented by <var>Selection</var> to the selection
+        of this XMultiSelectionSupplier.
+
+        @param Selection
+            either an Object that is selectable or a sequence of objects that are selectable.
+
+        @returns
+            `TRUE`/, if <var>Selection</var> was added to the current selection.
+            `FALSE`, if <var>Selection</var> or parts of <var>Selection</var> could not be
+            added to the current selection. For example, if the selection already contains
+            objects that are forbidden to be selected together with <var>Selection</var>
+
+        @throws com::sun::star::lang::IllegalArgumentException
+            If <var>Selection</var> is not a selectable object for this XMultiSelectionSupplier.
+            <p>Adding an object to the selection that is already part of the selection should not raise this exception</p>
+     */
+    boolean addSelection( [in] any Selection )
+                raises( com::sun::star::lang::IllegalArgumentException );
+
+
+    /** remove the object or objects represented by <var>Selection</var> from the
+        selection of this XMultiSelectionSupplier.
+
+        @param Selection
+            either an Object that is selectable or a sequence of objects that are selectable.
+
+        @returns
+            `TRUE`/, if <var>Selection</var> was added to the current selection.
+            `FALSE`, if <var>Selection</var> or parts of <var>Selection</var> could not be
+            added to the current selection. For example, if the selection already contains
+            objects that are forbidden to be selected together with <var>Selection</var>.
+
+        @throws com::sun::star::lang::IllegalArgumentException
+            If <var>Selection</var> is not a selectable object for this XMultiSelectionSupplier.
+            <p>Removing an object from the selection that is not part of the selection should not raise this exception</p>
+     */
+    void removeSelection( [in] any Selection )
+                raises( com::sun::star::lang::IllegalArgumentException );
+
+
+    /** clears the selection of this XMultiSelectionSupplier.
+    */
+    void clearSelection();
+
+
+    /** returns the number of selected objects of this XMultiSelectionSupplier.
+    */
+    long getSelectionCount();
+
+
+    /** @returns
+            a new object to enumerate the selection of this XMultiSelectionSupplier.
+            It returns NULL if there are no objects in the selection.
+     */
+    com::sun::star::container::XEnumeration createSelectionEnumeration();
+
+
+    /** @returns
+            a new object to enumerate the selection of this XMultiSelectionSupplier
+            in reverse order. If the order of the selected objects
+            It returns NULL if there are no objects in the selection.
+     */
+    com::sun::star::container::XEnumeration createReverseSelectionEnumeration();
+
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */