--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/slideshow/utils/shwautoptr.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,141 @@
+/*
+* Copyright (c) 2007-2008 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:    Thin callback wrapper
+ *
+*/
+
+
+
+
+// include guard for the whole file content
+#ifndef __SHWAUTOPTR_H__
+#define __SHWAUTOPTR_H__
+
+/**
+ * TShwAutoPtr, implementation of auto_ptr
+ */
+template< class T >
+class TShwAutoPtr
+	{
+	public:
+
+		/**
+		 * Default constructor
+		 */
+		TShwAutoPtr()
+			: iPtr( NULL )
+			{}
+	
+		/**
+		 * Constructor
+		 * @param aPtr the pointer to own
+		 */
+		TShwAutoPtr( T* aPtr = 0 )
+			: iPtr( aPtr )
+			{}
+
+		/**
+		 * Copy constructor, transfers ownership
+		 * @param aPtr the pointer to transfer
+		 */
+		TShwAutoPtr( TShwAutoPtr< T >& aPtr )
+			: iPtr( aPtr.Release() )
+			{}
+
+		/**
+		 * Destructor, releases the pointer
+		 */
+		~TShwAutoPtr()
+			{
+			delete iPtr;
+			}
+
+		/**
+		 * Dereference
+		 */
+		T& operator*() const
+			{ 
+			return *iPtr;
+			}
+
+		/**
+		 * Take address of pointed class
+		 */
+		T* operator &()
+			{ 
+			return iPtr;
+			}
+		
+		/**
+		 * Dereference
+		 */
+		T* operator->() const 
+			{
+			return iPtr;
+			}
+
+		/**
+		 * Gives the pointer to the caller, ownership stays
+		 * @return the pointer held, ownership does not transfer
+		 */
+		T* Pointer() const
+			{
+			return iPtr;
+			}
+
+		/**
+		 * Assignment from one pointer to another, ownership transfers
+		 * @param the auto pointer to hold
+		 * @return reference to this so that assignments can be chained
+		 */
+		TShwAutoPtr<T>& operator=( TShwAutoPtr<T>& aCopy )
+			{
+			if( this != &aCopy )
+				{
+				// transfer the pointer
+				SetPointer( aCopy.Release() );
+				}
+			return *this; 
+			}
+
+		/**
+		 * Sets the pointer, ownership is taken
+		 * @param the pointer to hold
+		 */
+		void SetPointer( T* aPointer )
+			{
+			// release the old (possible) pointer
+			delete iPtr;
+			iPtr = aPointer;
+			}
+
+		/**
+		 * Release, returns the ownership to the caller
+		 * @return the pointer held, ownership transfers
+		 */
+		T* Release()
+			{ 
+			T* temp = iPtr;
+			iPtr = 0;
+			return temp;
+			}
+
+	private:
+		
+		/// Own: the pointer to hold
+		T* iPtr;
+
+	};
+
+#endif // __SHWAUTOPTR_H__