--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/src/compman/tvtuiblocklists.cpp	Wed Sep 01 12:29:12 2010 +0100
@@ -0,0 +1,153 @@
+/*
+* 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:  Component ID block lists implementation.
+*
+*/
+
+
+#include "tvtuiblocklists.h"
+
+const static TUint KNullBlockMask = 0;
+
+// Implementation for TVtUiBlockList
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockList::~TVtUiBlockList
+// -----------------------------------------------------------------------------
+//
+TVtUiBlockList::~TVtUiBlockList()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockList::TVtUiBlockList
+// -----------------------------------------------------------------------------
+//
+TVtUiBlockList::TVtUiBlockList()
+    {
+    }
+
+// Implementation for TVtUiBlockListBitField
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::TVtUiBlockListBitField
+// -----------------------------------------------------------------------------
+//
+TVtUiBlockListBitField::TVtUiBlockListBitField() : iBlockMask( KNullBlockMask )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::TVtUiBlockListBitField
+// -----------------------------------------------------------------------------
+//
+TVtUiBlockListBitField::TVtUiBlockListBitField( TUint aBlockMask )
+    : iBlockMask( aBlockMask )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::IsEmpty
+// -----------------------------------------------------------------------------
+//
+TBool TVtUiBlockListBitField::IsEmpty() const
+    {
+    return !iBlockMask;
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::Contains
+// -----------------------------------------------------------------------------
+//
+TBool TVtUiBlockListBitField::Contains( MVtUiComponent::TComponentId aId ) const
+    {
+    return ( iBlockMask & aId ) && ( aId != MVtUiComponent::EComponentIdNull );
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::Union
+// -----------------------------------------------------------------------------
+//
+void TVtUiBlockListBitField::Union( const TVtUiBlockList& aBlockList )
+    {
+    iBlockMask |=
+        static_cast< const TVtUiBlockListBitField& >( aBlockList ).iBlockMask;
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::IteratorLC
+// -----------------------------------------------------------------------------
+//
+CVtUiBlockListIterator* TVtUiBlockListBitField::IteratorLC() const
+    {
+    return TVtUiBlockListBitField::CVtUiBListIteratorBF::NewLC( iBlockMask );
+    }
+
+// Implementation for TVtUiBlockListBitField::CVtUiBListIteratorBF
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::CVtUiBListIteratorBF::NewLC
+// -----------------------------------------------------------------------------
+//
+TVtUiBlockListBitField::CVtUiBListIteratorBF*
+TVtUiBlockListBitField::CVtUiBListIteratorBF::NewLC(
+    const TUint& aBlockMask )
+    {
+    CVtUiBListIteratorBF* self = new ( ELeave )
+        CVtUiBListIteratorBF( aBlockMask );
+    CleanupStack::PushL( self );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::CVtUiBListIteratorBF::CVtUiBListIteratorBF
+// -----------------------------------------------------------------------------
+//
+TVtUiBlockListBitField::CVtUiBListIteratorBF::CVtUiBListIteratorBF(
+    const TUint& aBlockMask ) : iBlockMask( aBlockMask ), iCurrent( 1 )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::CVtUiBListIteratorBF::HasNext
+// -----------------------------------------------------------------------------
+//
+TBool TVtUiBlockListBitField::CVtUiBListIteratorBF::HasNext() const
+    {
+    return ( iCurrent && ( iCurrent <= iBlockMask ) );
+    }
+
+// -----------------------------------------------------------------------------
+// TVtUiBlockListBitField::CVtUiBListIteratorBF::Next
+// -----------------------------------------------------------------------------
+//
+MVtUiComponent::TComponentId
+TVtUiBlockListBitField::CVtUiBListIteratorBF::Next()
+    {
+    MVtUiComponent::TComponentId id( MVtUiComponent::EComponentIdNull );
+
+    while ( HasNext() && !( iCurrent & iBlockMask ) )
+        {
+        iCurrent <<= 1;
+        }
+
+    if ( iCurrent )
+        {
+        id = static_cast< MVtUiComponent::TComponentId >( iCurrent );
+        }
+
+	iCurrent <<= 1;
+
+    return id;
+    }