--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/medialists/src/glxlistutils.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,80 @@
+/*
+* 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:    List utilities
+*
+*/
+
+
+
+#include <glxtracer.h>                 //For logging
+#include <featmgr.h>
+#include <bldvariant.hrh>   // For feature constants
+
+#include "glxlistutils.h"
+
+// -----------------------------------------------------------------------------
+// NormalizedIndex
+// -----------------------------------------------------------------------------
+//
+TInt GlxListUtils::NormalizedIndex( TInt aIndex, TInt aListLength ) 
+	{
+	TRACER("GlxListUtils::NormalizedIndex");
+	
+	if ( 0 == aListLength ) 
+	    {
+	    return KErrNotFound;
+	    }
+	    
+	TInt index = aIndex % aListLength;
+    if( index < 0 )
+        {
+        // sign for modulo is the same as left side
+        // so need to add aListLength
+        index += aListLength;
+        }
+        
+	return index;
+	}		
+
+// -----------------------------------------------------------------------------
+// VisibleItemsGranularityL
+// -----------------------------------------------------------------------------
+//
+TInt GlxListUtils::VisibleItemsGranularityL()
+    {
+    TRACER("GlxListUtils::DefaultVisibleItemsGranularityL");
+    
+    //TBD: In MCL 9.1/Corolla env currently the feature flags 
+    //KFeatureIdLayout640_480 and KFeatureIdLayout480_640 are not defined
+    //so making the default granularity as 21 instead of 15.
+    //Need to replace with KGlxDefaultVisibleItemsGranularity after
+    //getting the feature flag.
+    TInt ret = KGlxVGAVisibleItemsGranularity;
+    FeatureManager::InitializeLibL();
+    
+    if (FeatureManager::FeatureSupported( KFeatureIdLayout640_360_Touch ) || 
+        FeatureManager::FeatureSupported( KFeatureIdLayout360_640_Touch ))
+      {
+      ret = KGlxQHDVisibleItemsGranularity;
+      }
+    else if(FeatureManager::FeatureSupported(KFeatureIdLayout640_480_Touch) || 
+          FeatureManager::FeatureSupported(KFeatureIdLayout480_640_Touch) || 
+          FeatureManager::FeatureSupported(KFeatureIdLayout640_480) || 
+          FeatureManager::FeatureSupported(KFeatureIdLayout480_640))
+      {
+      ret = KGlxVGAVisibleItemsGranularity;
+      }
+    FeatureManager::UnInitializeLib(); 
+    return ret;
+    }