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diff --git a/sc/source/ui/inc/DrawModelBroadcaster.hxx b/sc/source/ui/inc/DrawModelBroadcaster.hxx
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+++ b/sc/source/ui/inc/DrawModelBroadcaster.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 .
+ */
+
+#pragma once
+
+#include <svl/lstner.hxx>
+#include <comphelper/interfacecontainer4.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/document/XEventBroadcaster.hpp>
+#include <com/sun/star/document/XShapeEventBroadcaster.hpp>
+#include <mutex>
+#include <unordered_map>
+
+class SdrModel;
+
+class ScDrawModelBroadcaster : public SfxListener,
+    public ::cppu::WeakImplHelper< css::document::XShapeEventBroadcaster >
+{
+    mutable std::mutex maListenerMutex;
+    ::comphelper::OInterfaceContainerHelper4<css::document::XEventListener> maEventListeners;
+    std::unordered_map<css::uno::Reference< css::drawing::XShape >, css::uno::Reference< css::document::XShapeEventListener >> maShapeListeners;
+    SdrModel *mpDrawModel;
+
+public:
+
+    ScDrawModelBroadcaster( SdrModel *pDrawModel );
+    virtual ~ScDrawModelBroadcaster() override;
+
+    // css::document::XEventBroadcaster
+    virtual void SAL_CALL addEventListener( const css::uno::Reference< css::document::XEventListener >& xListener ) override;
+    virtual void SAL_CALL removeEventListener( const css::uno::Reference< css::document::XEventListener >& xListener ) override;
+    // css::document::XShapeEventBroadcaster
+    virtual void SAL_CALL addShapeEventListener( const css::uno::Reference< css::drawing::XShape >& xShape, const css::uno::Reference< css::document::XShapeEventListener >& xListener ) override;
+    virtual void SAL_CALL removeShapeEventListener( const css::uno::Reference< css::drawing::XShape >& xShape, const css::uno::Reference< css::document::XShapeEventListener >& xListener ) override;
+
+    virtual void        Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */