1 files changed, 12 insertions, 6 deletions
diff --git a/starmath/inc/document.hxx b/starmath/inc/document.hxx
index f03cd43fc965..f8ffef16dfcd 100644..100755
--- a/starmath/inc/document.hxx
+++ b/starmath/inc/document.hxx
@@ -29,19 +29,21 @@
 
 #define SMDLL   1
 
-#include <sot/storage.hxx>
-#include <sot/sotref.hxx>
+#include <rtl/ustring.hxx>
+#include <sfx2/docfac.hxx>
 #include <sfx2/objsh.hxx>
+#include <sot/sotref.hxx>
+#include <sot/storage.hxx>
 #include <svl/lstner.hxx>
-#include <sfx2/docfac.hxx>
+#include <vcl/jobset.hxx>
 #include <vcl/virdev.hxx>
 
+#include <set>
+
 #include "format.hxx"
 #include "parse.hxx"
 #include "smmod.hxx"
 
-#include <vcl/jobset.hxx>
-
 class SmNode;
 class SfxMenuBarManager;
 class SfxPrinter;
@@ -124,6 +126,8 @@ class SmDocShell : public SfxObjectShell, public SfxListener
     USHORT              nModifyCount;
     BOOL                bIsFormulaArranged;
 
+    std::set< rtl::OUString >    aUsedSymbols;   // to export used symbols only when saving
+
 
 
     virtual void SFX_NOTIFY(SfxBroadcaster& rBC, const TypeId& rBCType,
@@ -200,6 +204,8 @@ public:
     const SmNode *  GetFormulaTree() const  { return pTree; }
     void            SetFormulaTree(SmNode *&rTree) { pTree = rTree; }
 
+    const std::set< rtl::OUString > &    GetUsedSymbols() const  { return aUsedSymbols; }
+
     String          GetAccessibleText();
 
     EditEngine &    GetEditEngine();
@@ -210,7 +216,7 @@ public:
 
     void        Repaint();
 
-    virtual     SfxUndoManager *GetUndoManager ();
+    virtual     ::svl::IUndoManager *GetUndoManager ();
 
     virtual     SfxItemPool& GetPool() const;