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diff --git a/svx/inc/sdr/properties/attributeproperties.hxx b/svx/inc/sdr/properties/attributeproperties.hxx
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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 INCLUDED_SVX_SDR_PROPERTIES_ATTRIBUTEPROPERTIES_HXX
+#define INCLUDED_SVX_SDR_PROPERTIES_ATTRIBUTEPROPERTIES_HXX
+
+#include <svl/lstner.hxx>
+#include <svl/stylesheetuser.hxx>
+#include <svx/sdr/properties/defaultproperties.hxx>
+
+
+namespace sdr::properties
+    {
+        class AttributeProperties : public DefaultProperties, public SfxListener, public svl::StyleSheetUser
+        {
+            // core to set parent at SfxItemSet and to execute the hard attribute computations
+            void ImpSetParentAtSfxItemSet(bool bDontRemoveHardAttr);
+
+            // add style sheet, do all the necessary handling
+            void ImpAddStyleSheet(SfxStyleSheet* pNewStyleSheet, bool bDontRemoveHardAttr);
+
+            // remove StyleSheet, do all the necessary handling
+            void ImpRemoveStyleSheet();
+
+        protected:
+            // the StyleSheet of this object
+            SfxStyleSheet*                                  mpStyleSheet;
+
+            // create a new itemset
+            virtual SfxItemSet CreateObjectSpecificItemSet(SfxItemPool& pPool) override;
+
+            // Do the ItemChange, may do special handling
+            virtual void ItemChange(const sal_uInt16 nWhich, const SfxPoolItem* pNewItem = nullptr) override;
+
+            // react on ItemSet changes
+            virtual void ItemSetChanged(o3tl::span< const SfxPoolItem* const > aChangedItems, sal_uInt16 nDeletedWhich) override;
+
+            // apply the correct SfyStyleSheet from SdrObject's SdrModel
+            virtual void applyDefaultStyleSheetFromSdrModel();
+
+        public:
+            // basic constructor
+            explicit AttributeProperties(SdrObject& rObj);
+
+            // constructor for copying, but using new object
+            AttributeProperties(const AttributeProperties& rProps, SdrObject& rObj);
+
+            // Clone() operator, normally just calls the local copy constructor
+            virtual std::unique_ptr<BaseProperties> Clone(SdrObject& rObj) const override;
+
+            // Get the local ItemSet. This directly returns the local ItemSet of the object. No
+            // merging of ItemSets is done for e.g. Group objects.
+            virtual const SfxItemSet& GetObjectItemSet() const override;
+
+            // destructor
+            virtual ~AttributeProperties() override;
+
+            // set a new StyleSheet and broadcast
+            virtual void SetStyleSheet(SfxStyleSheet* pNewStyleSheet, bool bDontRemoveHardAttr,
+                bool bBroadcast) override;
+
+            // get the installed StyleSheet
+            virtual SfxStyleSheet* GetStyleSheet() const override;
+
+            // force all attributes which come from styles to hard attributes
+            // to be able to live without the style.
+            virtual void ForceStyleToHardAttributes() override;
+
+            // This is the Notify(...) from 2nd base class SfxListener
+            virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
+
+            virtual bool isUsedByModel() const override;
+        };
+
+} // end of namespace sdr::properties
+
+
+#endif // INCLUDED_SVX_SDR_PROPERTIES_ATTRIBUTEPROPERTIES_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */