--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/osncore/osncore/src/alfstringpool.cpp	Wed Sep 01 12:23:18 2010 +0100
@@ -0,0 +1,126 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Implementation of the common string pool for widget and the factory model class.
+*
+*/
+
+#include <stdlib.h>
+
+
+#include "osn/alfstringpool.h"
+#include "osn/alfstring.h"
+
+
+const int KPoolAllocSize = 32;
+
+namespace osncore
+    {
+class CAlfStringPoolImpl
+    {
+public:    
+    CAlfStringPoolImpl():iPool(0),iItemCount(0),iAllocCount(0)
+        {
+            
+        }
+    ~CAlfStringPoolImpl()
+        {
+        delete [] iPool;    
+        }
+    CAlfString* iPool;
+    int iItemCount;
+    int iAllocCount;
+    };    
+  
+
+//-----------------------------------------------------------------------
+// Only Method to access Strings from the String pool
+//-----------------------------------------------------------------------
+static CAlfString AppendToPool( 
+    const CAlfString& aString, 
+    CAlfStringPoolImpl*& aImpl)
+    {
+    bool found(false);
+    CAlfString ret(aString);
+    
+    //Look if this string is present then just return the corresponding RAlfString else create new one and add it to the list
+    for(int i=0;i<aImpl->iItemCount && !found;i++)
+        {
+        if( aImpl->iPool[i] == aString) //element found
+            {
+            found = true;
+            ret = aImpl->iPool[i];
+            }
+        }
+    if(!found)
+        {
+        if(aImpl->iItemCount < aImpl->iAllocCount )
+            {
+            aImpl->iPool[aImpl->iItemCount++] = aString;
+            }
+        else // // reserve more space for an array
+            {
+            CAlfString* tmp = (CAlfString*) realloc(aImpl->iPool, (sizeof (CAlfString) * KPoolAllocSize) );
+            if(tmp)
+                {
+                aImpl->iAllocCount += KPoolAllocSize;
+                aImpl->iPool = tmp;
+                
+                aImpl->iPool[aImpl->iItemCount++] = aString;     
+                }
+            else
+                {
+                User::LeaveIfNull(tmp);   
+                }    
+            }   
+        }
+    return ret;
+    }
+
+
+
+EXPORT_C  CAlfString CAlfStringPool::CreateStringL( const char* aString)
+    {
+    if(aString)
+        {
+        CAlfString tmp(aString);
+        return AppendToPool(tmp,iImpl);    
+        }
+    return CAlfString();
+    }
+
+EXPORT_C  CAlfString CAlfStringPool::CreateStringL( const CAlfString& aString)
+    {
+    return AppendToPool(aString,iImpl);
+    }
+
+EXPORT_C CAlfStringPool::CAlfStringPool():iImpl(0)
+    {
+    iImpl = new(ELeave) CAlfStringPoolImpl;
+    iImpl->iPool = new(ELeave)CAlfString[KPoolAllocSize];
+    iImpl->iAllocCount = KPoolAllocSize;
+    
+    }
+
+//-----------------------------------------------------------------------
+// Default Destructor
+//-----------------------------------------------------------------------
+EXPORT_C CAlfStringPool::~CAlfStringPool()
+    {
+    
+    delete iImpl;
+    iImpl = NULL;
+    }
+
+
+  }