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diff --git a/chart2/source/inc/WeakListenerAdapter.hxx b/chart2/source/inc/WeakListenerAdapter.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * 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 CHART2_WEAKLISTENERADAPTER_HXX
+#define CHART2_WEAKLISTENERADAPTER_HXX
+
+#include <com/sun/star/uno/XWeak.hpp>
+#include <com/sun/star/lang/XEventListener.hpp>
+#include <com/sun/star/util/XModifyListener.hpp>
+#include <com/sun/star/view/XSelectionChangeListener.hpp>
+#include <cppuhelper/weakref.hxx>
+#include <cppuhelper/implbase1.hxx>
+
+namespace chart
+{
+// --------------------------------------------------------------------------------
+
+/** Adapter that enables adding listeners as weak UNO references.  Thus, adding
+    an object as listener to a broadcaster does not increase its reference
+    count.
+
+    <p>The helper class, of course, is held as hard reference at the
+    broadcaster, but this should never be a problem as the adapter's life time
+    depends on no other object.</p>
+
+    <p>Note that in order to remove an object as listener, you have to remove
+    the same wrapper that you added, i.e., you should store the adapter as a
+    member in the adaptee class for later use.</p>
+ */
+template< class Listener >
+    class WeakListenerAdapter : public
+    ::cppu::WeakImplHelper1< Listener >
+{
+public:
+    explicit WeakListenerAdapter( const ::com::sun::star::uno::Reference< Listener > & xListener ) :
+            m_xListener( xListener )
+    {}
+    explicit WeakListenerAdapter( const ::com::sun::star::uno::WeakReference< Listener > & xListener ) :
+            m_xListener( xListener )
+    {}
+    virtual ~WeakListenerAdapter()
+    {}
+
+protected:
+    // ____ XEventListener (base of all listeners) ____
+    virtual void SAL_CALL disposing(
+        const ::com::sun::star::lang::EventObject& Source )
+        throw (::com::sun::star::uno::RuntimeException)
+    {
+        ::com::sun::star::uno::Reference<
+              ::com::sun::star::lang::XEventListener > xEventListener =
+          ::com::sun::star::uno::Reference<
+              ::com::sun::star::lang::XEventListener >(
+                  ::com::sun::star::uno::Reference< Listener >( m_xListener), ::com::sun::star::uno::UNO_QUERY );
+        if( xEventListener.is())
+            xEventListener->disposing( Source );
+    }
+
+    ::com::sun::star::uno::Reference< Listener > getListener() const
+    {
+        return m_xListener;
+    }
+
+private:
+    ::com::sun::star::uno::WeakReference< Listener > m_xListener;
+};
+
+// --------------------------------------------------------------------------------
+
+class WeakModifyListenerAdapter :
+        public WeakListenerAdapter< ::com::sun::star::util::XModifyListener >
+{
+public:
+    explicit WeakModifyListenerAdapter(
+        const ::com::sun::star::uno::WeakReference< ::com::sun::star::util::XModifyListener > & xListener );
+    virtual ~WeakModifyListenerAdapter();
+
+protected:
+    // ____ XModifyListener ____
+    virtual void SAL_CALL modified( const ::com::sun::star::lang::EventObject& aEvent )
+        throw (::com::sun::star::uno::RuntimeException);
+};
+
+// --------------------------------------------------------------------------------
+
+class WeakSelectionChangeListenerAdapter :
+        public WeakListenerAdapter< ::com::sun::star::view::XSelectionChangeListener >
+{
+public:
+    explicit WeakSelectionChangeListenerAdapter(
+        const ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionChangeListener > & xListener );
+    virtual ~WeakSelectionChangeListenerAdapter();
+
+protected:
+    // ____ XSelectionChangeListener ____
+    virtual void SAL_CALL selectionChanged(
+        const ::com::sun::star::lang::EventObject& aEvent )
+        throw (::com::sun::star::uno::RuntimeException);
+};
+
+} //  namespace chart
+
+// CHART2_WEAKLISTENERADAPTER_HXX
+#endif