Hold XMLTransformerContext by rtl::Reference

Change-Id: I60b8d422d53d47537996756aa1b7fb3c26f8383a

35 files changed, 145 insertions, 158 deletions

diff --git a/xmloff/source/transform/ChartPlotAreaOASISTContext.cxx b/xmloff/source/transform/ChartPlotAreaOASISTContext.cxx
index 95dc0763a234..c0b8c1068fd7 100644
--- a/xmloff/source/transform/ChartPlotAreaOASISTContext.cxx
+++ b/xmloff/source/transform/ChartPlotAreaOASISTContext.cxx
@@ -40,7 +40,7 @@ public:
                          ::rtl::Reference< XMLPersAttrListTContext > & rOutCategoriesContext );
     virtual ~XMLAxisOASISContext();
 
-    virtual XMLTransformerContext *CreateChildContext(
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
@@ -68,13 +68,13 @@ XMLAxisOASISContext::XMLAxisOASISContext(
 XMLAxisOASISContext::~XMLAxisOASISContext()
 {}
 
-XMLTransformerContext * XMLAxisOASISContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLAxisOASISContext::CreateChildContext(
     sal_uInt16 nPrefix,
     const OUString& rLocalName,
     const OUString& rQName,
     const Reference< xml::sax::XAttributeList >& xAttrList )
 {
-    XMLTransformerContext * pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( XML_NAMESPACE_CHART == nPrefix &&
         IsXMLToken( rLocalName, XML_CATEGORIES ) )
@@ -194,18 +194,18 @@ XMLChartPlotAreaOASISTContext::XMLChartPlotAreaOASISTContext(
 XMLChartPlotAreaOASISTContext::~XMLChartPlotAreaOASISTContext()
 {}
 
-XMLTransformerContext * XMLChartPlotAreaOASISTContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLChartPlotAreaOASISTContext::CreateChildContext(
     sal_uInt16 nPrefix,
     const OUString& rLocalName,
     const OUString& rQName,
     const uno::Reference< xml::sax::XAttributeList >& xAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( XML_NAMESPACE_CHART == nPrefix &&
         IsXMLToken( rLocalName, XML_AXIS ) )
     {
-        pContext = new XMLAxisOASISContext( GetTransformer(), rQName, m_rCategoriesContext );
+        pContext.set(new XMLAxisOASISContext( GetTransformer(), rQName, m_rCategoriesContext ));
     }
     else
     {
diff --git a/xmloff/source/transform/ChartPlotAreaOASISTContext.hxx b/xmloff/source/transform/ChartPlotAreaOASISTContext.hxx
index e42f10f79129..fc1bc7b80c9b 100644
--- a/xmloff/source/transform/ChartPlotAreaOASISTContext.hxx
+++ b/xmloff/source/transform/ChartPlotAreaOASISTContext.hxx
@@ -30,7 +30,7 @@ public:
         XMLTransformerBase & rTransformer, const OUString & rQName );
     virtual ~XMLChartPlotAreaOASISTContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/ChartPlotAreaOOoTContext.cxx b/xmloff/source/transform/ChartPlotAreaOOoTContext.cxx
index 5df97537a1aa..16aeecceba00 100644
--- a/xmloff/source/transform/ChartPlotAreaOOoTContext.cxx
+++ b/xmloff/source/transform/ChartPlotAreaOOoTContext.cxx
@@ -126,25 +126,25 @@ XMLChartPlotAreaOOoTContext::XMLChartPlotAreaOOoTContext(
 XMLChartPlotAreaOOoTContext::~XMLChartPlotAreaOOoTContext()
 {}
 
-XMLTransformerContext * XMLChartPlotAreaOOoTContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLChartPlotAreaOOoTContext::CreateChildContext(
     sal_uInt16 nPrefix,
     const OUString& rLocalName,
     const OUString& rQName,
     const uno::Reference< xml::sax::XAttributeList >& xAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( XML_NAMESPACE_CHART == nPrefix &&
         IsXMLToken( rLocalName, XML_AXIS ) )
     {
-        XMLAxisOOoContext * pAxisContext( new XMLAxisOOoContext( GetTransformer(), rQName ));
+        rtl::Reference<XMLAxisOOoContext> pAxisContext( new XMLAxisOOoContext( GetTransformer(), rQName ));
         AddContent( pAxisContext );
-        pContext = pAxisContext;
+        pContext.set(pAxisContext.get());
     }
     else if( XML_NAMESPACE_CHART == nPrefix &&
              IsXMLToken( rLocalName, XML_CATEGORIES ) )
     {
-        pContext = new XMLPersAttrListTContext( GetTransformer(), rQName );
+        pContext.set(new XMLPersAttrListTContext( GetTransformer(), rQName ));
 
         // put categories at correct axis
         XMLAxisContextVector::iterator aIter = m_aChildContexts.begin();
@@ -197,12 +197,11 @@ void XMLChartPlotAreaOOoTContext::EndElement()
     XMLProcAttrTransformerContext::EndElement();
 }
 
-void XMLChartPlotAreaOOoTContext::AddContent( XMLAxisOOoContext *pContext )
+void XMLChartPlotAreaOOoTContext::AddContent(rtl::Reference<XMLAxisOOoContext> const & pContext)
 {
-    OSL_ENSURE( pContext && pContext->IsPersistent(),
+    OSL_ENSURE( pContext.is() && pContext->IsPersistent(),
                 "non-persistent context" );
-    XMLAxisContextVector::value_type aVal( pContext );
-    m_aChildContexts.push_back( aVal );
+    m_aChildContexts.push_back(pContext);
 }
 
 
diff --git a/xmloff/source/transform/ChartPlotAreaOOoTContext.hxx b/xmloff/source/transform/ChartPlotAreaOOoTContext.hxx
index e2ddd635458a..75a14f59c1ec 100644
--- a/xmloff/source/transform/ChartPlotAreaOOoTContext.hxx
+++ b/xmloff/source/transform/ChartPlotAreaOOoTContext.hxx
@@ -36,7 +36,7 @@ public:
         XMLTransformerBase & rTransformer, const OUString & rQName );
     virtual ~XMLChartPlotAreaOOoTContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
@@ -44,7 +44,7 @@ public:
     virtual void ExportContent() override;
 
 protected:
-    void AddContent( XMLAxisOOoContext *pContent );
+    void AddContent( rtl::Reference<XMLAxisOOoContext> const & pContent );
 
 private:
     XMLAxisContextVector m_aChildContexts;
diff --git a/xmloff/source/transform/ControlOOoTContext.cxx b/xmloff/source/transform/ControlOOoTContext.cxx
index bff9ace673d3..1961da430869 100644
--- a/xmloff/source/transform/ControlOOoTContext.cxx
+++ b/xmloff/source/transform/ControlOOoTContext.cxx
@@ -48,19 +48,19 @@ void XMLControlOOoTransformerContext::StartElement(
     m_xAttrList = new XMLMutableAttributeList( rAttrList, true );
 }
 
-XMLTransformerContext *XMLControlOOoTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLControlOOoTransformerContext::CreateChildContext(
         sal_uInt16 /*nPrefix*/,
         const OUString& /*rLocalName*/,
         const OUString& rQName,
         const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( m_aElemQName.isEmpty() )
     {
-        pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+        pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
                                                     rQName,
-                                                    false, false );
+                                                    false, false ));
         m_aElemQName = rQName;
         static_cast< XMLMutableAttributeList * >( m_xAttrList.get() )
                 ->AppendAttributeList( rAttrList );
@@ -72,9 +72,9 @@ XMLTransformerContext *XMLControlOOoTransformerContext::CreateChildContext(
     }
     else
     {
-        pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+        pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
                                                     rQName,
-                                                    true, true );
+                                                    true, true ));
     }
     return pContext;
 }
diff --git a/xmloff/source/transform/ControlOOoTContext.hxx b/xmloff/source/transform/ControlOOoTContext.hxx
index 350e2946a846..7e345ea2d42f 100644
--- a/xmloff/source/transform/ControlOOoTContext.hxx
+++ b/xmloff/source/transform/ControlOOoTContext.hxx
@@ -34,7 +34,7 @@ public:
 
     virtual ~XMLControlOOoTransformerContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/CreateElemTContext.cxx b/xmloff/source/transform/CreateElemTContext.cxx
index e39864636bde..2a39c9a69bc3 100644
--- a/xmloff/source/transform/CreateElemTContext.cxx
+++ b/xmloff/source/transform/CreateElemTContext.cxx
@@ -87,13 +87,11 @@ void XMLCreateElemTransformerContext::StartElement(
                                 (*aIter).second.GetQNamePrefixFromParam1(),
                                 ::xmloff::token::GetXMLToken(
                                 (*aIter).second.GetQNameTokenFromParam1()) ) );
-                        XMLTransformerContext *pContext =
+                        rtl::Reference<XMLTransformerContext> pContext(
                             new XMLPersTextContentTContext( GetTransformer(),
-                                                       aElemQName );
+                                                       aElemQName ));
                         pContext->Characters( rAttrValue );
-                        XMLTransformerContextVector::value_type aVal(
-                                pContext );
-                        aChildContexts.push_back( aVal );
+                        aChildContexts.push_back(pContext);
                         pMutableAttrList->RemoveAttributeByIndex( i );
                         --i;
                         --nAttrCount;
diff --git a/xmloff/source/transform/DeepTContext.cxx b/xmloff/source/transform/DeepTContext.cxx
index 50bf401d5d43..d078cff27c31 100644
--- a/xmloff/source/transform/DeepTContext.cxx
+++ b/xmloff/source/transform/DeepTContext.cxx
@@ -29,12 +29,11 @@
 using namespace ::com::sun::star::uno;
 using namespace ::com::sun::star::xml::sax;
 
-void XMLPersElemContentTContext::AddContent( XMLTransformerContext *pContext )
+void XMLPersElemContentTContext::AddContent( rtl::Reference<XMLTransformerContext> const & pContext )
 {
-    OSL_ENSURE( pContext && pContext->IsPersistent(),
+    OSL_ENSURE( pContext.is() && pContext->IsPersistent(),
                 "non-persistent context" );
-    XMLTransformerContextVector::value_type aVal( pContext );
-    m_aChildContexts.push_back( aVal );
+    m_aChildContexts.push_back(pContext);
 }
 
 XMLPersElemContentTContext::XMLPersElemContentTContext(
@@ -75,13 +74,13 @@ XMLPersElemContentTContext::~XMLPersElemContentTContext()
 {
 }
 
-XMLTransformerContext *XMLPersElemContentTContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLPersElemContentTContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     XMLTransformerActions::key_type aKey( nPrefix, rLocalName );
     XMLTransformerActions::const_iterator aIter =
@@ -92,63 +91,61 @@ XMLTransformerContext *XMLPersElemContentTContext::CreateChildContext(
         switch( (*aIter).second.m_nActionType )
         {
         case XML_ETACTION_COPY:
-            pContext = new XMLPersMixedContentTContext( GetTransformer(),
-                                                       rQName );
+            pContext.set(new XMLPersMixedContentTContext( GetTransformer(),
+                                                       rQName ));
             break;
         case XML_ETACTION_COPY_TEXT:
-            pContext = new XMLPersMixedContentTContext( GetTransformer(),
-                                                       rQName );
+            pContext.set(new XMLPersMixedContentTContext( GetTransformer(),
+                                                       rQName ));
             break;
         case XML_ETACTION_RENAME_ELEM:
-            pContext = new XMLPersMixedContentTContext( GetTransformer(), rQName,
+            pContext.set(new XMLPersMixedContentTContext( GetTransformer(), rQName,
                     (*aIter).second.GetQNamePrefixFromParam1(),
-                    (*aIter).second.GetQNameTokenFromParam1() );
+                    (*aIter).second.GetQNameTokenFromParam1() ));
             break;
         case XML_ETACTION_RENAME_ELEM_PROC_ATTRS:
-            pContext = new XMLPersMixedContentTContext( GetTransformer(), rQName,
+            pContext.set(new XMLPersMixedContentTContext( GetTransformer(), rQName,
                     (*aIter).second.GetQNamePrefixFromParam1(),
                     (*aIter).second.GetQNameTokenFromParam1(),
-                       static_cast< sal_uInt16 >( (*aIter).second.m_nParam2 ) );
+                       static_cast< sal_uInt16 >( (*aIter).second.m_nParam2 ) ));
             break;
         case XML_ETACTION_RENAME_ELEM_ADD_PROC_ATTR:
             {
-                XMLPersMixedContentTContext *pMC =
+                rtl::Reference<XMLPersMixedContentTContext> pMC(
                     new XMLPersMixedContentTContext( GetTransformer(), rQName,
                         (*aIter).second.GetQNamePrefixFromParam1(),
                         (*aIter).second.GetQNameTokenFromParam1(),
                         static_cast< sal_uInt16 >(
-                            (*aIter).second.m_nParam3  >> 16 ) );
+                            (*aIter).second.m_nParam3  >> 16 ) ));
                 pMC->AddAttribute(
                     (*aIter).second.GetQNamePrefixFromParam2(),
                     (*aIter).second.GetQNameTokenFromParam2(),
                        static_cast< ::xmloff::token::XMLTokenEnum >(
                         (*aIter).second.m_nParam3 & 0xffff ) );
-                pContext = pMC;
+                pContext.set(pMC.get());
             }
             break;
         case XML_ETACTION_PROC_ATTRS:
-            pContext = new XMLPersMixedContentTContext( GetTransformer(), rQName,
-                       static_cast< sal_uInt16 >( (*aIter).second.m_nParam1 ) );
+            pContext.set(new XMLPersMixedContentTContext( GetTransformer(), rQName,
+                       static_cast< sal_uInt16 >( (*aIter).second.m_nParam1 ) ));
             break;
         default:
             pContext = GetTransformer().CreateUserDefinedContext(
                             (*aIter).second, rQName, true );
-            OSL_ENSURE( pContext && pContext->IsPersistent(),
+            OSL_ENSURE( pContext.is() && pContext->IsPersistent(),
                         "unknown or not persistent action" );
-            if( pContext && !pContext->IsPersistent() )
+            if( pContext.is() && !pContext->IsPersistent() )
             {
-                delete pContext;
-                pContext = nullptr;
+                pContext.clear();
             }
             break;
         }
     }
 
     // default is copying
-    if( !pContext )
-        pContext = new XMLPersMixedContentTContext( GetTransformer(), rQName );
-    XMLTransformerContextVector::value_type aVal( pContext );
-    m_aChildContexts.push_back( aVal );
+    if( !pContext.is() )
+        pContext.set(new XMLPersMixedContentTContext( GetTransformer(), rQName ));
+    m_aChildContexts.push_back(pContext);
 
     return pContext;
 }
diff --git a/xmloff/source/transform/DeepTContext.hxx b/xmloff/source/transform/DeepTContext.hxx
index 39660381b4f7..8031b15f7251 100644
--- a/xmloff/source/transform/DeepTContext.hxx
+++ b/xmloff/source/transform/DeepTContext.hxx
@@ -55,12 +55,12 @@ public:
 
     virtual ~XMLPersElemContentTContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
 
-    void AddContent( XMLTransformerContext *pContent );
+    void AddContent( rtl::Reference<XMLTransformerContext> const & pContent );
 
     bool HasElementContent() const
     {
diff --git a/xmloff/source/transform/EventOOoTContext.cxx b/xmloff/source/transform/EventOOoTContext.cxx
index d3b97b456c7b..7abb9977a369 100644
--- a/xmloff/source/transform/EventOOoTContext.cxx
+++ b/xmloff/source/transform/EventOOoTContext.cxx
@@ -226,7 +226,7 @@ void XMLEventOOoTransformerContext::EndElement()
         GetTransformer().GetDocHandler()->endElement( GetExportQName() );
 }
 
-XMLTransformerContext * XMLEventOOoTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLEventOOoTransformerContext::CreateChildContext(
                             sal_uInt16 nPrefix,
                             const OUString& rLocalName,
                             const OUString& rQName,
diff --git a/xmloff/source/transform/EventOOoTContext.hxx b/xmloff/source/transform/EventOOoTContext.hxx
index fa7a7e210cbd..b3d879fce446 100644
--- a/xmloff/source/transform/EventOOoTContext.hxx
+++ b/xmloff/source/transform/EventOOoTContext.hxx
@@ -42,7 +42,7 @@ public:
 
     virtual void StartElement( const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
     virtual void EndElement() override;
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/FormPropOOoTContext.cxx b/xmloff/source/transform/FormPropOOoTContext.cxx
index 0aea00928cd8..fe7653f40639 100644
--- a/xmloff/source/transform/FormPropOOoTContext.cxx
+++ b/xmloff/source/transform/FormPropOOoTContext.cxx
@@ -150,36 +150,36 @@ XMLFormPropOOoTransformerContext::~XMLFormPropOOoTransformerContext()
 {
 }
 
-XMLTransformerContext *XMLFormPropOOoTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLFormPropOOoTransformerContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( XML_NAMESPACE_FORM == nPrefix &&
         IsXMLToken( rLocalName, XML_PROPERTY_VALUE ) )
     {
         if( m_bIsList )
         {
-            pContext = new XMLFormPropValueTContext_Impl( GetTransformer(),
+            pContext.set(new XMLFormPropValueTContext_Impl( GetTransformer(),
                                                           rQName,
                                                           XML_NAMESPACE_OFFICE,
-                                                          m_eValueToken );
+                                                          m_eValueToken ));
         }
         else if( !m_xValueContext.is() )
         {
             m_xValueContext=
                 new XMLFormPropValueTContext_Impl( GetTransformer(), rQName );
-            pContext = m_xValueContext.get();
+            pContext.set(m_xValueContext.get());
         }
     }
 
     // default is ignore
-    if( !pContext )
-        pContext = new XMLIgnoreTransformerContext( GetTransformer(), rQName,
-                                             true, true );
+    if( !pContext.is() )
+        pContext.set(new XMLIgnoreTransformerContext( GetTransformer(), rQName,
+                                             true, true ));
     return pContext;
 }
 
diff --git a/xmloff/source/transform/FormPropOOoTContext.hxx b/xmloff/source/transform/FormPropOOoTContext.hxx
index 54111ef581bb..6630cc5516f4 100644
--- a/xmloff/source/transform/FormPropOOoTContext.hxx
+++ b/xmloff/source/transform/FormPropOOoTContext.hxx
@@ -46,7 +46,7 @@ public:
 
     virtual ~XMLFormPropOOoTransformerContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/FrameOASISTContext.cxx b/xmloff/source/transform/FrameOASISTContext.cxx
index 061a60b38948..ca5b1e9c2b94 100644
--- a/xmloff/source/transform/FrameOASISTContext.cxx
+++ b/xmloff/source/transform/FrameOASISTContext.cxx
@@ -105,20 +105,20 @@ void XMLFrameOASISTransformerContext::StartElement(
     }
 }
 
-XMLTransformerContext *XMLFrameOASISTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLFrameOASISTransformerContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( m_bIgnoreElement )
     {
         // do not export the frame element and all of its children
-        pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+        pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
                                                                 rQName,
-                                                                true, true );
+                                                                true, true ));
     }
     else
     {
@@ -136,9 +136,9 @@ XMLTransformerContext *XMLFrameOASISTransformerContext::CreateChildContext(
                 if( m_aElemQName.isEmpty() &&
                     !IsLinkedEmbeddedObject( rLocalName, rAttrList ) )
                 {
-                    pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+                    pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
                                                                 rQName,
-                                                                false, false );
+                                                                false, false ));
                     m_aElemQName = rQName;
                     static_cast< XMLMutableAttributeList * >( m_xAttrList.get() )
                         ->AppendAttributeList( rAttrList );
@@ -150,9 +150,9 @@ XMLTransformerContext *XMLFrameOASISTransformerContext::CreateChildContext(
                 }
                 else
                 {
-                    pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+                    pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
                                                                 rQName,
-                                                                true, true );
+                                                                true, true ));
                 }
                 break;
             default:
@@ -163,7 +163,7 @@ XMLTransformerContext *XMLFrameOASISTransformerContext::CreateChildContext(
     }
 
     // default is copying
-    if( !pContext )
+    if( !pContext.is() )
         pContext = XMLTransformerContext::CreateChildContext( nPrefix,
                                                               rLocalName,
                                                               rQName,
diff --git a/xmloff/source/transform/FrameOASISTContext.hxx b/xmloff/source/transform/FrameOASISTContext.hxx
index 26b641f2663e..55f0d549a0b9 100644
--- a/xmloff/source/transform/FrameOASISTContext.hxx
+++ b/xmloff/source/transform/FrameOASISTContext.hxx
@@ -40,7 +40,7 @@ public:
 
     virtual ~XMLFrameOASISTransformerContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/FrameOOoTContext.cxx b/xmloff/source/transform/FrameOOoTContext.cxx
index f181f058bdc2..74385d604e03 100644
--- a/xmloff/source/transform/FrameOOoTContext.cxx
+++ b/xmloff/source/transform/FrameOOoTContext.cxx
@@ -100,13 +100,13 @@ void XMLFrameOOoTransformerContext::StartElement(
     XMLTransformerContext::StartElement( xAttrList );
 }
 
-XMLTransformerContext *XMLFrameOOoTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLFrameOOoTransformerContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     XMLTransformerActions *pActions =
         GetTransformer().GetUserDefinedActions( OOO_FRAME_ELEM_ACTIONS );
@@ -133,7 +133,7 @@ XMLTransformerContext *XMLFrameOOoTransformerContext::CreateChildContext(
     }
 
     // default is copying
-    if( !pContext )
+    if( !pContext.is() )
         pContext = XMLTransformerContext::CreateChildContext(
                     nPrefix, rLocalName, rQName, rAttrList );
 
diff --git a/xmloff/source/transform/FrameOOoTContext.hxx b/xmloff/source/transform/FrameOOoTContext.hxx
index 9c8f753132f1..c49b42d70442 100644
--- a/xmloff/source/transform/FrameOOoTContext.hxx
+++ b/xmloff/source/transform/FrameOOoTContext.hxx
@@ -32,7 +32,7 @@ public:
 
     virtual ~XMLFrameOOoTransformerContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/IgnoreTContext.cxx b/xmloff/source/transform/IgnoreTContext.cxx
index 5174399b7d9b..1dde4f753306 100644
--- a/xmloff/source/transform/IgnoreTContext.cxx
+++ b/xmloff/source/transform/IgnoreTContext.cxx
@@ -53,20 +53,20 @@ XMLIgnoreTransformerContext::~XMLIgnoreTransformerContext()
 {
 }
 
-XMLTransformerContext *XMLIgnoreTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLIgnoreTransformerContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& xAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
     if( m_bIgnoreElements )
-        pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+        pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
                                                     rQName, true,
-                                                    true );
+                                                    true ));
     else if (m_bRecursiveUse)
-        pContext = new XMLIgnoreTransformerContext( GetTransformer(),
-                                                    rQName, m_bAllowCharactersRecursive );
+        pContext.set(new XMLIgnoreTransformerContext( GetTransformer(),
+                                                    rQName, m_bAllowCharactersRecursive ));
     else
         pContext = XMLTransformerContext::CreateChildContext(
                         nPrefix, rLocalName, rQName, xAttrList );
diff --git a/xmloff/source/transform/IgnoreTContext.hxx b/xmloff/source/transform/IgnoreTContext.hxx
index aae5bf2c2c09..024692774755 100644
--- a/xmloff/source/transform/IgnoreTContext.hxx
+++ b/xmloff/source/transform/IgnoreTContext.hxx
@@ -55,7 +55,7 @@ public:
 
     // Create a children element context. By default, the import's
     // CreateContext method is called to create a new default context.
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/MergeElemTContext.cxx b/xmloff/source/transform/MergeElemTContext.cxx
index 3e1a79da7376..f35fde9c4dfe 100644
--- a/xmloff/source/transform/MergeElemTContext.cxx
+++ b/xmloff/source/transform/MergeElemTContext.cxx
@@ -41,7 +41,7 @@ public:
 
     // Create a children element context. By default, the import's
     // CreateContext method is called to create a new default context.
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
@@ -72,18 +72,14 @@ XMLParagraphTransformerContext::~XMLParagraphTransformerContext()
 {
 }
 
-XMLTransformerContext *XMLParagraphTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLParagraphTransformerContext::CreateChildContext(
         sal_uInt16 /*nPrefix*/,
         const OUString& /*rLocalName*/,
         const OUString& rQName,
         const Reference< XAttributeList >& )
 {
-    XMLTransformerContext *pContext = nullptr;
-
-    pContext = new XMLIgnoreTransformerContext( GetTransformer(),
+    return new XMLIgnoreTransformerContext( GetTransformer(),
                                                 rQName, true );
-
-    return pContext;
 }
 
 void XMLParagraphTransformerContext::StartElement( const Reference< XAttributeList >& rAttrList )
@@ -200,13 +196,13 @@ void XMLMergeElemTransformerContext::StartElement(
     }
 }
 
-XMLTransformerContext *XMLMergeElemTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLMergeElemTransformerContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( !m_bStartElementExported )
     {
@@ -225,36 +221,33 @@ XMLTransformerContext *XMLMergeElemTransformerContext::CreateChildContext(
                 {
                 case XML_ETACTION_MOVE_TO_ATTR_RNG2ISO_DATETIME:
                     {
-                        XMLPersTextContentTContext *pTC =
+                        rtl::Reference<XMLPersTextContentTContext> pTC(
                             new XMLPersTextContentRNGTransformTContext(
                                     GetTransformer(), rQName,
                                     (*aIter).second.GetQNamePrefixFromParam1(),
-                                    (*aIter).second.GetQNameTokenFromParam1() );
-                        XMLPersTextContentTContextVector::value_type aVal(pTC);
-                        m_aChildContexts.push_back( aVal );
-                        pContext = pTC;
+                                    (*aIter).second.GetQNameTokenFromParam1() ));
+                        m_aChildContexts.push_back(pTC);
+                        pContext.set(pTC.get());
                     }
                     break;
                 case XML_ETACTION_MOVE_TO_ATTR:
                     {
-                        XMLPersTextContentTContext *pTC =
+                        rtl::Reference<XMLPersTextContentTContext> pTC(
                             new XMLPersTextContentTContext(
                                     GetTransformer(), rQName,
                                     (*aIter).second.GetQNamePrefixFromParam1(),
-                                    (*aIter).second.GetQNameTokenFromParam1() );
-                        XMLPersTextContentTContextVector::value_type aVal(pTC);
-                        m_aChildContexts.push_back( aVal );
-                        pContext = pTC;
+                                    (*aIter).second.GetQNameTokenFromParam1() ));
+                        m_aChildContexts.push_back(pTC);
+                        pContext.set(pTC.get());
                     }
                     break;
                 case XML_ETACTION_EXTRACT_CHARACTERS:
                     {
                         if( !m_bStartElementExported )
                             ExportStartElement();
-                        XMLParagraphTransformerContext* pPTC =
+                        pContext.set(
                             new XMLParagraphTransformerContext( GetTransformer(),
-                            rQName);
-                        pContext = pPTC;
+                            rQName));
                     }
                     break;
                 default:
@@ -283,10 +276,9 @@ XMLTransformerContext *XMLMergeElemTransformerContext::CreateChildContext(
                     {
                         if( !m_bStartElementExported )
                             ExportStartElement();
-                        XMLParagraphTransformerContext* pPTC =
+                        pContext.set(
                             new XMLParagraphTransformerContext( GetTransformer(),
-                            rQName);
-                        pContext = pPTC;
+                            rQName));
                     }
                     break;
                 default:
@@ -298,7 +290,7 @@ XMLTransformerContext *XMLMergeElemTransformerContext::CreateChildContext(
     }
 
     // default is copying
-    if( !pContext )
+    if( !pContext.is() )
     {
         if( !m_bStartElementExported )
             ExportStartElement();
diff --git a/xmloff/source/transform/MergeElemTContext.hxx b/xmloff/source/transform/MergeElemTContext.hxx
index 39cc3b174e0e..07602f681c02 100644
--- a/xmloff/source/transform/MergeElemTContext.hxx
+++ b/xmloff/source/transform/MergeElemTContext.hxx
@@ -43,7 +43,7 @@ public:
 
     virtual ~XMLMergeElemTransformerContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/MetaTContext.cxx b/xmloff/source/transform/MetaTContext.cxx
index f029cdfaee2a..8dea091fd10d 100644
--- a/xmloff/source/transform/MetaTContext.cxx
+++ b/xmloff/source/transform/MetaTContext.cxx
@@ -67,18 +67,18 @@ XMLMetaTransformerContext::~XMLMetaTransformerContext()
 {
 }
 
-XMLTransformerContext *XMLMetaTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLMetaTransformerContext::CreateChildContext(
             sal_uInt16 /*nPrefix*/,
             const OUString& rLocalName,
             const OUString& rQName,
             const Reference< XAttributeList >& )
 {
-    XMLPersTextContentTContext *pContext =
-        new XMLPersTextContentTContext( GetTransformer(), rQName );
+    rtl::Reference<XMLPersTextContentTContext> pContext(
+        new XMLPersTextContentTContext( GetTransformer(), rQName ));
     XMLMetaContexts_Impl::value_type aVal( rLocalName, pContext );
     m_aContexts.insert( aVal );
 
-    return pContext;
+    return pContext.get();
 }
 
 void XMLMetaTransformerContext::EndElement()
diff --git a/xmloff/source/transform/MetaTContext.hxx b/xmloff/source/transform/MetaTContext.hxx
index a8788fa8c4d3..f6ed27136dbf 100644
--- a/xmloff/source/transform/MetaTContext.hxx
+++ b/xmloff/source/transform/MetaTContext.hxx
@@ -49,7 +49,7 @@ public:
 
     // Create a children element context. By default, the import's
     // CreateContext method is called to create a new default context.
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/NotesTContext.cxx b/xmloff/source/transform/NotesTContext.cxx
index 9fbdf1f1b53b..bef8abcd8e40 100644
--- a/xmloff/source/transform/NotesTContext.cxx
+++ b/xmloff/source/transform/NotesTContext.cxx
@@ -153,13 +153,13 @@ void XMLNotesTransformerContext::EndElement()
     }
 }
 
-XMLTransformerContext *XMLNotesTransformerContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLNotesTransformerContext::CreateChildContext(
         sal_uInt16 nPrefix,
         const OUString& rLocalName,
         const OUString& rQName,
         const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
     if( XML_NOTE == m_eTypeToken )
     {
         if( XML_NAMESPACE_TEXT == nPrefix )
@@ -180,25 +180,25 @@ XMLTransformerContext *XMLNotesTransformerContext::CreateChildContext(
             {
                 if( m_bPersistent  )
                 {
-                    pContext = new XMLPersTextContentTContext(
+                    pContext.set(new XMLPersTextContentTContext(
                                     GetTransformer(), rQName,
                                     XML_NAMESPACE_TEXT,
-                                    eToken );
+                                    eToken ));
                     AddContent( pContext );
 
                 }
                 else
                 {
-                    pContext = new XMLRenameElemTransformerContext(
+                    pContext.set(new XMLRenameElemTransformerContext(
                                     GetTransformer(), rQName,
                                     XML_NAMESPACE_TEXT,
-                                    eToken );
+                                    eToken ));
                 }
             }
         }
     }
 
-    if( !pContext )
+    if( !pContext.is() )
     {
         pContext = m_bPersistent
                         ? XMLPersElemContentTContext::CreateChildContext(
diff --git a/xmloff/source/transform/NotesTContext.hxx b/xmloff/source/transform/NotesTContext.hxx
index 1a49c4a94c47..b7f9a6eb5823 100644
--- a/xmloff/source/transform/NotesTContext.hxx
+++ b/xmloff/source/transform/NotesTContext.hxx
@@ -36,7 +36,7 @@ public:
 
     virtual ~XMLNotesTransformerContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/Oasis2OOo.cxx b/xmloff/source/transform/Oasis2OOo.cxx
index 9ab36090f3a6..e23b5e128228 100644
--- a/xmloff/source/transform/Oasis2OOo.cxx
+++ b/xmloff/source/transform/Oasis2OOo.cxx
@@ -1252,7 +1252,7 @@ public:
 
     virtual void StartElement( const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
@@ -1276,7 +1276,7 @@ void XMLBodyOASISTransformerContext_Impl::StartElement(
 {
 }
 
-XMLTransformerContext* XMLBodyOASISTransformerContext_Impl::CreateChildContext( sal_uInt16 nPrefix,
+rtl::Reference<XMLTransformerContext> XMLBodyOASISTransformerContext_Impl::CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList )
diff --git a/xmloff/source/transform/PersAttrListTContext.cxx b/xmloff/source/transform/PersAttrListTContext.cxx
index 82985eb85699..3f708fd482ae 100644
--- a/xmloff/source/transform/PersAttrListTContext.cxx
+++ b/xmloff/source/transform/PersAttrListTContext.cxx
@@ -110,7 +110,7 @@ XMLPersAttrListTContext::~XMLPersAttrListTContext()
 {
 }
 
-XMLTransformerContext *XMLPersAttrListTContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLPersAttrListTContext::CreateChildContext(
         sal_uInt16 /*nPrefix*/,
         const OUString& /*rLocalName*/,
         const OUString& rQName,
diff --git a/xmloff/source/transform/PersAttrListTContext.hxx b/xmloff/source/transform/PersAttrListTContext.hxx
index 5f4942c204d1..e47fb3377491 100644
--- a/xmloff/source/transform/PersAttrListTContext.hxx
+++ b/xmloff/source/transform/PersAttrListTContext.hxx
@@ -69,7 +69,7 @@ public:
 
     // Create a children element context. By default, the import's
     // CreateContext method is called to create a new default context.
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/PersMixedContentTContext.cxx b/xmloff/source/transform/PersMixedContentTContext.cxx
index 3a4696a9e9c6..43f49af454b9 100644
--- a/xmloff/source/transform/PersMixedContentTContext.cxx
+++ b/xmloff/source/transform/PersMixedContentTContext.cxx
@@ -34,7 +34,7 @@ public:
                            const OUString& rChars );
     virtual ~XMLPersTextTContext_Impl();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
@@ -58,14 +58,14 @@ XMLPersTextTContext_Impl::~XMLPersTextTContext_Impl()
 {
 }
 
-XMLTransformerContext *XMLPersTextTContext_Impl::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLPersTextTContext_Impl::CreateChildContext(
         sal_uInt16,
         const OUString&,
         const OUString&,
         const Reference< XAttributeList >& )
 {
     OSL_ENSURE( false, "illegal call to CreateChildContext" );
-    return nullptr;
+    return {};
 }
 
 void XMLPersTextTContext_Impl::StartElement(
diff --git a/xmloff/source/transform/StyleOASISTContext.cxx b/xmloff/source/transform/StyleOASISTContext.cxx
index 6a4163ce74fa..060336798936 100644
--- a/xmloff/source/transform/StyleOASISTContext.cxx
+++ b/xmloff/source/transform/StyleOASISTContext.cxx
@@ -759,13 +759,13 @@ XMLStyleOASISTContext::~XMLStyleOASISTContext()
 {
 }
 
-XMLTransformerContext *XMLStyleOASISTContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLStyleOASISTContext::CreateChildContext(
             sal_uInt16 nPrefix,
             const OUString& rLocalName,
             const OUString& rQName,
             const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( XML_NAMESPACE_STYLE == nPrefix || XML_NAMESPACE_LO_EXT == nPrefix )
     {
@@ -779,10 +779,10 @@ XMLTransformerContext *XMLStyleOASISTContext::CreateChildContext(
                     GetTransformer(), rQName, ePropType, m_aStyleFamily, m_bControlStyle );
             else
                 m_xPropContext->SetQNameAndPropType( rQName, ePropType );
-            pContext = m_xPropContext.get();
+            pContext.set(m_xPropContext.get());
         }
     }
-    if( !pContext )
+    if( !pContext.is() )
     {
         // if a properties context exist close it
         if( m_xPropContext.is() && !m_bPersistent )
diff --git a/xmloff/source/transform/StyleOASISTContext.hxx b/xmloff/source/transform/StyleOASISTContext.hxx
index ae46ba624f5f..8b1149ccf596 100644
--- a/xmloff/source/transform/StyleOASISTContext.hxx
+++ b/xmloff/source/transform/StyleOASISTContext.hxx
@@ -46,7 +46,7 @@ public:
 
     virtual ~XMLStyleOASISTContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/StyleOOoTContext.cxx b/xmloff/source/transform/StyleOOoTContext.cxx
index 24d0234a3b27..4f30727767d6 100644
--- a/xmloff/source/transform/StyleOOoTContext.cxx
+++ b/xmloff/source/transform/StyleOOoTContext.cxx
@@ -237,7 +237,7 @@ public:
 
     virtual ~XMLPropertiesOOoTContext_Impl();
 
-    XMLTransformerContext *CreateChildContext(
+    rtl::Reference<XMLTransformerContext> CreateChildContext(
             sal_uInt16 nPrefix,
             const OUString& rLocalName,
             const OUString& rQName,
@@ -378,7 +378,7 @@ XMLPropertiesOOoTContext_Impl::~XMLPropertiesOOoTContext_Impl()
 {
 }
 
-XMLTransformerContext *XMLPropertiesOOoTContext_Impl::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLPropertiesOOoTContext_Impl::CreateChildContext(
             sal_uInt16 nPrefix,
             const OUString& rLocalName,
             const OUString& rQName,
@@ -1067,13 +1067,13 @@ XMLStyleOOoTContext::~XMLStyleOOoTContext()
 {
 }
 
-XMLTransformerContext *XMLStyleOOoTContext::CreateChildContext(
+rtl::Reference<XMLTransformerContext> XMLStyleOOoTContext::CreateChildContext(
             sal_uInt16 nPrefix,
             const OUString& rLocalName,
             const OUString& rQName,
             const Reference< XAttributeList >& rAttrList )
 {
-    XMLTransformerContext *pContext = nullptr;
+    rtl::Reference<XMLTransformerContext> pContext;
 
     if( XML_NAMESPACE_STYLE == nPrefix &&
         IsXMLToken( rLocalName, XML_PROPERTIES ) )
@@ -1093,29 +1093,29 @@ XMLTransformerContext *XMLStyleOOoTContext::CreateChildContext(
                 aAttrActionMaps[aPropTypes[m_eFamily][0]];
             if( nActionMap < MAX_OOO_PROP_ACTIONS )
             {
-                pContext = new XMLPropertiesOOoTContext_Impl(
+                pContext.set(new XMLPropertiesOOoTContext_Impl(
                                     GetTransformer(), rQName,
-                                    aPropTypes[m_eFamily], m_bPersistent );
+                                    aPropTypes[m_eFamily], m_bPersistent ));
             }
             else
             {
                 if( m_bPersistent )
-                    pContext = new XMLPersElemContentTContext(
+                    pContext.set(new XMLPersElemContentTContext(
                                     GetTransformer(), rQName,
                                     XML_NAMESPACE_STYLE,
-                                    aPropTokens[aPropTypes[m_eFamily][0]] );
+                                    aPropTokens[aPropTypes[m_eFamily][0]] ));
                 else
-                    pContext = new XMLRenameElemTransformerContext(
+                    pContext.set(new XMLRenameElemTransformerContext(
                                     GetTransformer(), rQName,
                                     XML_NAMESPACE_STYLE,
-                                    aPropTokens[aPropTypes[m_eFamily][0]] );
+                                    aPropTokens[aPropTypes[m_eFamily][0]] ));
             }
         }
         else
         {
-            pContext = new XMLPropertiesOOoTContext_Impl(
+            pContext.set(new XMLPropertiesOOoTContext_Impl(
                                 GetTransformer(), rQName,
-                                aPropTypes[m_eFamily], m_bPersistent);
+                                aPropTypes[m_eFamily], m_bPersistent));
         }
 
         if( m_bPersistent )
diff --git a/xmloff/source/transform/StyleOOoTContext.hxx b/xmloff/source/transform/StyleOOoTContext.hxx
index 5a716a5387d7..12cb4192f2b3 100644
--- a/xmloff/source/transform/StyleOOoTContext.hxx
+++ b/xmloff/source/transform/StyleOOoTContext.hxx
@@ -47,7 +47,7 @@ public:
 
     virtual ~XMLStyleOOoTContext();
 
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ) override;
diff --git a/xmloff/source/transform/TransformerContext.cxx b/xmloff/source/transform/TransformerContext.cxx
index 61e3df984876..d245314774f6 100644
--- a/xmloff/source/transform/TransformerContext.cxx
+++ b/xmloff/source/transform/TransformerContext.cxx
@@ -58,7 +58,7 @@ XMLTransformerContext::~XMLTransformerContext()
 {
 }
 
-XMLTransformerContext *XMLTransformerContext::CreateChildContext( sal_uInt16 nPrefix,
+rtl::Reference<XMLTransformerContext> XMLTransformerContext::CreateChildContext( sal_uInt16 nPrefix,
                                             const OUString& rLocalName,
                                             const OUString& rQName,
                                             const Reference< XAttributeList >& )
diff --git a/xmloff/source/transform/TransformerContext.hxx b/xmloff/source/transform/TransformerContext.hxx
index 449c3e144f98..a42e982a4dec 100644
--- a/xmloff/source/transform/TransformerContext.hxx
+++ b/xmloff/source/transform/TransformerContext.hxx
@@ -22,6 +22,7 @@
 
 #include <com/sun/star/xml/sax/XAttributeList.hpp>
 #include <salhelper/simplereferenceobject.hxx>
+#include <rtl/ref.hxx>
 #include <rtl/ustring.hxx>
 #include <xmloff/xmltoken.hxx>
 
@@ -69,7 +70,7 @@ public:
 
     // Create a children element context. By default, the import's
     // CreateContext method is called to create a new default context.
-    virtual XMLTransformerContext *CreateChildContext( sal_uInt16 nPrefix,
+    virtual rtl::Reference<XMLTransformerContext> CreateChildContext( sal_uInt16 nPrefix,
                                    const OUString& rLocalName,
                                    const OUString& rQName,
                                    const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList );