recursion protection

Change-Id: I66fda143ba1f0fa6f2638a8bd4936c75a6c40980

lotuswordpro/source/filter/lwpcelllayout.cxx

@@ -645,7 +645,7 @@ void LwpCellLayout::ApplyProtect(XFCell * pCell, LwpObjectID aTableID)
 {
     bool bProtected = false;
     // judge current cell
-    if (IsProtected())
+    if (GetIsProtected())
     {
         bProtected = true;
     }
@@ -653,7 +653,7 @@ void LwpCellLayout::ApplyProtect(XFCell * pCell, LwpObjectID aTableID)
     {
         // judge base on
         LwpCellLayout * pBase = dynamic_cast<LwpCellLayout *>(GetBasedOnStyle().get());
-        if (pBase && pBase->IsProtected())
+        if (pBase && pBase->GetIsProtected())
         {
             bProtected = true;
         }
@@ -663,7 +663,7 @@ void LwpCellLayout::ApplyProtect(XFCell * pCell, LwpObjectID aTableID)
             LwpTable * pTable = dynamic_cast<LwpTable *>(aTableID.obj().get());
             LwpTableLayout * pTableLayout = pTable ? dynamic_cast<LwpTableLayout *>(pTable->GetTableLayout()) : nullptr;
             LwpSuperTableLayout * pSuper = pTableLayout ? pTableLayout->GetSuperTableLayout() : nullptr;
-            if (pSuper && pSuper->IsProtected())
+            if (pSuper && pSuper->GetIsProtected())
             {
                 bProtected = true;
             }

lotuswordpro/source/filter/lwpframelayout.cxx

@@ -397,7 +397,7 @@ void LwpFrame::ApplyBackColor(XFFrameStyle* pFrameStyle)
 */
 void LwpFrame::ApplyProtect(XFFrameStyle* pFrameStyle)
 {
-    if(m_pLayout->IsProtected())
+    if(m_pLayout->GetIsProtected())
     {
         pFrameStyle->SetProtect(true,true,true);
     }

lotuswordpro/source/filter/lwplayout.cxx

@@ -74,6 +74,8 @@
 LwpVirtualLayout::LwpVirtualLayout(LwpObjectHeader &objHdr, LwpSvStream* pStrm)
     : LwpDLNFPVList(objHdr, pStrm)
     , m_bGettingHonorProtection(false)
+    , m_bGettingHasProtection(false)
+    , m_bGettingIsProtected(false)
     , m_nAttributes(0)
     , m_nAttributes2(0)
     , m_nAttributes3(0)
@@ -1267,7 +1269,7 @@ bool LwpMiddleLayout::IsProtected()
     }
     else if (LwpMiddleLayout* pLay = dynamic_cast<LwpMiddleLayout*> (GetBasedOnStyle().get()))
     {
-        bProtected = pLay->IsProtected();
+        bProtected = pLay->GetIsProtected();
     }
     else
         bProtected = LwpVirtualLayout::IsProtected();
@@ -1276,7 +1278,7 @@ bool LwpMiddleLayout::IsProtected()
     if(pParent && !pParent->IsHeader())
     {
         /* If a parent's protected then none of its children can be accessed. */
-        if(pParent->IsProtected())
+        if(pParent->GetIsProtected())
             return true;
 
         if(pParent->GetHonorProtection())

lotuswordpro/source/filter/lwplayout.hxx

@@ -120,7 +120,15 @@ public:
         m_bGettingHonorProtection = false;
         return bRet;
     }
-    virtual bool IsProtected();
+    bool GetIsProtected()
+    {
+        if (m_bGettingIsProtected)
+            throw std::runtime_error("recursion in layout");
+        m_bGettingIsProtected = true;
+        bool bRet = IsProtected();
+        m_bGettingIsProtected = false;
+        return bRet;
+    }
     bool GetHasProtection()
     {
         if (m_bGettingHasProtection)
@@ -181,9 +189,11 @@ protected:
     void Read() override;
     bool HasProtection();
     virtual bool HonorProtection();
+    virtual bool IsProtected();
 protected:
     bool m_bGettingHonorProtection;
     bool m_bGettingHasProtection;
+    bool m_bGettingIsProtected;
     sal_uInt32 m_nAttributes;
     sal_uInt32 m_nAttributes2;
     sal_uInt32 m_nAttributes3;