diff -r f7f0874bfe7d -r 74c9f037fd5d inc/glxid.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/glxid.inl	Fri Mar 19 09:28:59 2010 +0200
@@ -0,0 +1,215 @@
+/*
+* Copyright (c) 2008-2009 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:   Type-safe unique id template
+*
+*/
+
+
+
+#include "glxpanic.h"
+
+const TUint KGlxInvalidIdValue = KMaxTUint;
+
+// -----------------------------------------------------------------------------
+// Default constructor
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>::TGlxId() 
+    { 
+    iIdValue = KGlxInvalidIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>::TGlxId(const TGlxId<T>& aId) 
+    { 
+    iIdValue = aId.iIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>::TGlxId(TUint aIdValue) 
+    { 
+    __ASSERT_DEBUG(aIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); 
+    iIdValue = aIdValue; 
+    }
+        
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>::TGlxId(const TGlxIdNone&) 
+    { 
+    iIdValue = KGlxInvalidIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Assignment, checks for invalid value
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>& TGlxId<T>::operator=(const TGlxId<T>& aId) 
+    { 
+    __ASSERT_DEBUG(aId.iIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); // Use SetValue to set undefined value
+    iIdValue = aId.iIdValue; 
+    return *this; 
+    }
+        
+// -----------------------------------------------------------------------------
+// Assignment, checks for invalid value
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>& TGlxId<T>::operator=(TUint aIdValue) 
+    { 
+    __ASSERT_DEBUG(aIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); 
+    iIdValue = aIdValue; 
+    return *this; 
+    }
+        
+// -----------------------------------------------------------------------------
+// Assignment 
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T>& TGlxId<T>::operator=(const TGlxIdNone&) 
+    { 
+    iIdValue = KGlxInvalidIdValue;  
+    return *this; 
+    }
+
+// -----------------------------------------------------------------------------
+// Post-increment
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TGlxId<T> TGlxId<T>::operator++(int) 
+    { 
+    TUint value = iIdValue;
+    iIdValue++; 
+    return TGlxId<T>(value); 
+    }
+
+// -----------------------------------------------------------------------------
+// Comparison
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TBool TGlxId<T>::operator!=(const TGlxId<T>& aId) const 
+    { 
+    return iIdValue != aId.iIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Comparison
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TBool TGlxId<T>::operator==(const TGlxId<T>& aId) const 
+    { 
+    return iIdValue == aId.iIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Comparison
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TBool TGlxId<T>::operator!=(const TGlxIdNone&) const 
+    { 
+    return iIdValue != KGlxInvalidIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Comparison
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TBool TGlxId<T>::operator==(const TGlxIdNone&) const 
+    { 
+    return iIdValue == KGlxInvalidIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Comparison
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TBool TGlxId<T>::operator>(const TGlxId<T>& aId) const 
+    { 
+    return iIdValue > aId.iIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Comparison
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TBool TGlxId<T>::operator<(const TGlxId<T>& aId) const 
+    { 
+    return iIdValue < aId.iIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Returns current value 
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline TUint TGlxId<T>::Value() const 
+    { 
+    return iIdValue; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Allows setting undefined as value
+// -----------------------------------------------------------------------------
+//
+template <class T> 
+inline void TGlxId<T>::SetValue(TUint aIdValue) 
+    { 
+    iIdValue = aIdValue; 
+    }
+
+/**
+ * TGlxDefaultIdProvider
+ * Simple implementation of id provider
+ */ 
+// -----------------------------------------------------------------------------
+// Allows setting undefined as value
+// -----------------------------------------------------------------------------
+//
+template <class T>
+TGlxDefaultIdProvider<T>::TGlxDefaultIdProvider() 
+    { 
+    iNextIdValue = 0; 
+    }
+    
+// -----------------------------------------------------------------------------
+// Allows setting undefined as value
+// -----------------------------------------------------------------------------
+//
+template <class T>
+void TGlxDefaultIdProvider<T>::NextId(T& aId) 
+    { 
+    aId = iNextIdValue++; 
+    }
+