Resolves: #i120077# Memory leak fixed in ScXMLFontAutoStylePool_Impl

also checked and fixed memory leaks caused by not deleting
SfxStyleSheetIterator instances.

Found by: Chao Huang
Patch by: Chao Huang
Review by: alg

(cherry picked from commit aee8221b3fbe64d8e88aa3a1b630214807cd86f0)

Conflicts:
sc/source/core/data/stlsheet.cxx
sc/source/filter/xml/xmlfonte.cxx
sfx2/source/doc/objcont.cxx
svl/source/items/style.cxx
sw/source/core/unocore/unostyle.cxx

Resolves: #120077# ALG: Reverted r1354011,

adapted all usages of SfxStyleSheetIterator and CreateIterator to use
boost::shared_ptr

(cherry picked from commit ec1819f218b94bed1556653e1b2b816a65da61ef)

Conflicts:
sc/source/core/data/stlsheet.cxx
sc/source/filter/xml/xmlfonte.cxx
sfx2/source/doc/objcont.cxx
svl/inc/svl/style.hxx
svl/source/items/style.cxx
sw/source/core/unocore/unoframe.cxx
sw/source/core/unocore/unostyle.cxx

26937d4d65562b14de0aea59a7b01cc4334f73c1

Change-Id: If99bf3ee399292ec269d68b36ee78ed63f033215

2 files changed, 11 insertions, 14 deletions

diff --git a/svl/inc/svl/style.hxx b/svl/inc/svl/style.hxx
index 664ca5cb1ec2..af58cbc44327 100644
--- a/svl/inc/svl/style.hxx
+++ b/svl/inc/svl/style.hxx
@@ -37,10 +37,10 @@
 #include <svl/stylesheetuser.hxx>
 
 #include <svl/style.hrc>
+#include <boost/shared_ptr.hpp>
 
 class SfxItemSet;
 class SfxItemPool;
-
 class SfxStyleSheetBasePool;
 class SvStream;
 
@@ -192,6 +192,7 @@ private:
 friend class SfxStyleSheetBasePool;
 };
 
+typedef ::boost::shared_ptr< SfxStyleSheetIterator > SfxStyleSheetIteratorPtr;
 //=========================================================================
 
 class SfxStyleSheetBasePool_Impl;
@@ -228,7 +229,7 @@ public:
     SfxItemPool&                GetPool();
     const SfxItemPool&          GetPool() const;
 
-    virtual SfxStyleSheetIterator* CreateIterator(SfxStyleFamily, sal_uInt16 nMask);
+    virtual SfxStyleSheetIteratorPtr CreateIterator(SfxStyleFamily, sal_uInt16 nMask);
     virtual sal_uInt16              Count();
     virtual SfxStyleSheetBase*  operator[](sal_uInt16 nIdx);
 
diff --git a/svl/source/items/style.cxx b/svl/source/items/style.cxx
index cd44bea2bbb7..c2879e799f1a 100644
--- a/svl/source/items/style.cxx
+++ b/svl/source/items/style.cxx
@@ -83,10 +83,8 @@ SfxStyleSheetHint::SfxStyleSheetHint
 
 class SfxStyleSheetBasePool_Impl
 {
-  public:
-    SfxStyleSheetIterator *pIter;
-    SfxStyleSheetBasePool_Impl() : pIter(0){}
-    ~SfxStyleSheetBasePool_Impl(){delete pIter;}
+public:
+    SfxStyleSheetIteratorPtr pIter;
 };
 
 
@@ -532,13 +530,12 @@ void SfxStyleSheetBasePool::Replace(
 
 SfxStyleSheetIterator& SfxStyleSheetBasePool::GetIterator_Impl()
 {
-    SfxStyleSheetIterator*& rpIter = pImp->pIter;
-    if( !rpIter || (rpIter->GetSearchMask() != nMask) || (rpIter->GetSearchFamily() != nSearchFamily) )
+    if( !pImp->pIter || (pImp->pIter->GetSearchMask() != nMask) || (pImp->pIter->GetSearchFamily() != nSearchFamily) )
     {
-        delete rpIter;
-        rpIter = CreateIterator( nSearchFamily, nMask );
+        pImp->pIter = CreateIterator( nSearchFamily, nMask );
     }
-    return *rpIter;
+
+    return *pImp->pIter;
 }
 
 SfxStyleSheetBasePool::SfxStyleSheetBasePool( SfxItemPool& r )
@@ -603,14 +600,13 @@ sal_uInt16 SfxStyleSheetBasePool::GetSearchMask() const
     return nMask;
 }
 
-
-SfxStyleSheetIterator* SfxStyleSheetBasePool::CreateIterator
+SfxStyleSheetIteratorPtr SfxStyleSheetBasePool::CreateIterator
 (
  SfxStyleFamily eFam,
  sal_uInt16 mask
 )
 {
-    return new SfxStyleSheetIterator(this,eFam,mask);
+    return SfxStyleSheetIteratorPtr(new SfxStyleSheetIterator(this,eFam,mask));
 }
 
 SfxStyleSheetBase* SfxStyleSheetBasePool::Create