Make the member mutable to avoid ugly casting.

Change-Id: I28fd84b89a8d443e502d2c0e76f38cf006a57d4a

sfx2/source/bastyp/fltfnc.cxx

@@ -248,10 +248,10 @@ class SfxFilterMatcher_Impl
 {
 public:
     OUString     aName;
-    SfxFilterList_Impl* pList;      // is created on demand
+    mutable SfxFilterList_Impl* pList;      // is created on demand
 
     void InitForIterating() const;
-    void Update();
+    void Update() const;
     SfxFilterMatcher_Impl(const OUString &rName)
         : aName(rName)
         , pList(0)
@@ -321,7 +321,7 @@ SfxFilterMatcher::~SfxFilterMatcher()
         aImplArr.clear();
 }
 
-void SfxFilterMatcher_Impl::Update()
+void SfxFilterMatcher_Impl::Update() const
 {
     if ( pList )
     {
@@ -348,13 +348,13 @@ void SfxFilterMatcher_Impl::InitForIterating() const
     if ( !aName.isEmpty() )
     {
         // matcher of factory: use only filters of that document type
-        ((SfxFilterMatcher_Impl*)this)->pList = new SfxFilterList_Impl;
-        ((SfxFilterMatcher_Impl*)this)->Update();
+        pList = new SfxFilterList_Impl;
+        Update();
     }
     else
     {
         // global matcher: use global filter array
-        ((SfxFilterMatcher_Impl*)this)->pList = pFilterArr;
+        pList = pFilterArr;
     }
 }
 

sfx2/source/doc/docfile.cxx

@@ -2873,11 +2873,28 @@ SfxMedium::SfxMedium( const uno::Sequence<beans::PropertyValue>& aArgs ) :
     pImp->m_pSet = pParams;
     TransformParameters( SID_OPENDOC, aArgs, *pParams );
 
-    String aFilterName;
-    SFX_ITEMSET_ARG( pImp->m_pSet, pFilterNameItem, SfxStringItem, SID_FILTER_NAME, false );
-    if( pFilterNameItem )
-        aFilterName = pFilterNameItem->GetValue();
-    pImp->m_pFilter = SFX_APP()->GetFilterMatcher().GetFilter4FilterName( aFilterName );
+    OUString aFilterProvider;
+    {
+        const SfxPoolItem* pItem = NULL;
+        if (pImp->m_pSet->HasItem(SID_FILTER_PROVIDER, &pItem))
+            aFilterProvider = static_cast<const SfxStringItem*>(pItem)->GetValue();
+    }
+
+    fprintf(stdout, "SfxMedium::SfxMedium:   filter provider = '%s'\n", rtl::OUStringToOString(aFilterProvider, RTL_TEXTENCODING_UTF8).getStr());
+    if (aFilterProvider.isEmpty())
+    {
+        // This is a conventional filter type.
+        OUString aFilterName;
+        SFX_ITEMSET_ARG( pImp->m_pSet, pFilterNameItem, SfxStringItem, SID_FILTER_NAME, false );
+        if( pFilterNameItem )
+            aFilterName = pFilterNameItem->GetValue();
+        pImp->m_pFilter = SFX_APP()->GetFilterMatcher().GetFilter4FilterName( aFilterName );
+    }
+    else
+    {
+        // This filter is from an external provider such as orcus.
+
+    }
 
     SFX_ITEMSET_ARG( pImp->m_pSet, pSalvageItem, SfxStringItem, SID_DOC_SALVAGE, false );
     if( pSalvageItem )