diff -r c54d95799c80 -r a1247965635c mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgswitchbuffer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgswitchbuffer.cpp	Tue Apr 27 16:34:37 2010 +0300
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2006 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: Implements a container for buffer switch handling.
+*
+*/
+
+
+#include "mpxcollectionviewhgswitchbuffer.h"
+
+#include <gulicon.h>
+
+#include <ganes/HgScroller.h>
+#include <ganes/HgVgMediaWall.h>
+#include <ganes/HgItem.h>
+#include <ganes/HgVgItem.h>
+
+// ----------------------------------------------------------------------------
+// Create a copy of the icons used from input
+// ----------------------------------------------------------------------------
+CMPXCollectionViewHgSwitchBuffer* CMPXCollectionViewHgSwitchBuffer::CreateBufferLC( CHgScroller& aScroller )
+    {
+    CMPXCollectionViewHgSwitchBuffer* buffer = new (ELeave) CMPXCollectionViewHgSwitchBuffer();
+    CleanupStack::PushL(buffer);
+
+    for(TInt i = 0; i < aScroller.ItemCount(); ++i)
+        {
+        CGulIcon* icon = aScroller.ItemL(i).Icon();
+        if(icon)
+            {
+            buffer->AddToBufferL(*icon, i);
+            }
+        }
+
+    return buffer;
+    }
+
+// ----------------------------------------------------------------------------
+// Create a copy of the icons used from input
+// ----------------------------------------------------------------------------
+CMPXCollectionViewHgSwitchBuffer* CMPXCollectionViewHgSwitchBuffer::CreateBufferLC( CHgVgMediaWall& aMediaWall )
+    {
+    CMPXCollectionViewHgSwitchBuffer* buffer = new (ELeave) CMPXCollectionViewHgSwitchBuffer();
+    CleanupStack::PushL(buffer);
+
+    for(TInt i = 0; i < aMediaWall.ItemCount(); ++i)
+        {
+        CGulIcon* icon = aMediaWall.ItemL(i).Icon();
+        if(icon)
+            {
+            buffer->AddToBufferL(*icon, i);
+            }
+        }
+
+    return buffer;
+    }
+
+// ----------------------------------------------------------------------------
+//
+// ----------------------------------------------------------------------------
+CMPXCollectionViewHgSwitchBuffer::~CMPXCollectionViewHgSwitchBuffer ()
+    {
+    iBuffer.ResetAndDestroy();
+    }
+
+// ----------------------------------------------------------------------------
+// Provide mediawall with the data from buffer.
+// ----------------------------------------------------------------------------
+void CMPXCollectionViewHgSwitchBuffer::FillFromBufferL( CHgVgMediaWall& aMediaWall )
+    {
+    for(TInt i = 0; i < iBuffer.Count(); ++i)
+        {
+        CGulIcon* icon = iBuffer[i]->GetIcon();
+        CleanupStack::PushL(icon);
+        if(icon)
+            aMediaWall.ItemL(iBuffer[i]->Index() + iOffset).SetIcon(icon);
+
+        CleanupStack::Pop(icon);
+        }
+    }
+
+// ----------------------------------------------------------------------------
+//
+// ----------------------------------------------------------------------------
+void CMPXCollectionViewHgSwitchBuffer::FillFromBufferL( CHgScroller& aScroller, TSize aSize )
+    {
+    User::Leave(KErrNotSupported);
+    }
+
+// ----------------------------------------------------------------------------
+// Offset to start filling.
+// ----------------------------------------------------------------------------
+void CMPXCollectionViewHgSwitchBuffer::SetIndexOffset( TInt aOffset )
+    {
+    iOffset = aOffset;
+    }
+
+// ----------------------------------------------------------------------------
+// Add icon to the buffer.
+// ----------------------------------------------------------------------------
+void CMPXCollectionViewHgSwitchBuffer::AddToBufferL(CGulIcon& aIcon, TInt aIndex)
+    {
+    CGulIcon* newIcon = CGulIcon::NewL(aIcon.Bitmap(), aIcon.Mask());
+    TBool isShared = aIcon.BitmapsOwnedExternally();
+    aIcon.SetBitmapsOwnedExternally(ETrue);
+    newIcon->SetBitmapsOwnedExternally(isShared);
+
+    CleanupStack::PushL(newIcon);
+    CBufferItem* item = new (ELeave) CBufferItem( newIcon, aIndex );
+    iBuffer.AppendL(item);
+    CleanupStack::Pop(newIcon);
+    }
+
+// ----------------------------------------------------------------------------
+//
+// ----------------------------------------------------------------------------
+CMPXCollectionViewHgSwitchBuffer::CMPXCollectionViewHgSwitchBuffer ()
+    {
+
+    }