--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/hierarchynavigator/hnpresentationmodel/inc/hnattrimgprovliwimage.h	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,154 @@
+/*
+* 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:   image provider for liw buffer
+*
+*/
+
+
+#ifndef HNATTRIMGPROVLIWIMAGE_H_
+#define HNATTRIMGPROVLIWIMAGE_H_
+
+#include <AknUtils.h>
+#include "hnattrimgprovider.h"
+#include "hnglobals.h"
+
+class TLiwVariant;
+class CLiwBitmapBuffer;
+
+/**
+ *  Image provider class for empty image.
+ *  Image provider specialization that loads image
+ *  froma an liw buffer.
+ *
+ *  @lib hnpresentationmodel
+ *  @since S60 5.0
+ *  @ingroup group_hnpresentationmodel
+ */
+NONSHARABLE_CLASS( CHnAttrImgProvLiwImage ) : public CHnAttrImgProvider
+    {
+public:
+    
+    /**
+     * Two-phase constructor.
+     *
+     * @since S60 5.0
+     * @param aBitmap Pointer to bitmap.
+     * @param aMaskBitmap Poitner to mask.
+     * @return Fully constructed object.
+     */
+    IMPORT_C static CHnAttrImgProvLiwImage* NewL( TLiwVariant*& aBitmap, 
+            TLiwVariant*& aMaskBitmap );
+
+    /**
+     * Two-phase constructor.
+     *
+     * @since S60 5.0
+     * @param aBitmap Pointer to bitmap.
+     * @param aMaskBitmap Poitner to mask.
+     * @return Fully constructed object.
+     */
+    IMPORT_C static CHnAttrImgProvLiwImage* NewLC( TLiwVariant*& aBitmap, 
+            TLiwVariant*& aMaskBitmap );
+
+    /**
+     * Virtual destructor.
+     * 
+     * @since S60 5.0
+     */
+    virtual ~CHnAttrImgProvLiwImage();
+    
+    /**
+     * Removes all  LIW objects owned by this object.
+     * 
+     * LIW objects owned by non-LIW objects that are owned by
+     * this object are also removed.
+     * @since S60 5.0
+     */
+    virtual void RemoveLiwObjects();
+
+// from base class CHnAttrImgProvider
+public:
+    
+    /**
+     * Returns the value.
+     *
+     * @since S60 5.0
+     * @return Value
+     */
+    const TDesC8& Value();
+
+private:
+
+    /**
+     * Defualt constructor.
+     * 
+     * @since S60 5.0
+     */
+    CHnAttrImgProvLiwImage();
+
+    /**
+     * Standard 2nd pahse symbian constructor.
+     * 
+     * @since S60 5.0
+     * @param aBitmap Pointer to bitmap.
+     * @param aMaskBitmap Poitner to mask.
+     */
+    void ConstructL( TLiwVariant*& aBitmap, TLiwVariant*& aMaskBitmap );
+    
+    /**
+     * Creates icon whose bitmaps are owned externally by CLiwBitmapBuffer objects.
+     * 
+     * @param aBitmap Primary icon bitmap.
+     * @param aMask Icon mask.
+     * @param aExtBmp Buffer that owns the primary bitmap of the icon.
+     * @param aExtMask Buffer that owns the mask.
+     */
+    void CreateExtIconL( CFbsBitmap* aBitmap, CFbsBitmap* aMask,
+            CLiwBitmapBuffer* aExtBmp, CLiwBitmapBuffer* aExtMask );
+    
+    /**
+     * Creates Bitmap from variant which can be a handle or a descriptor.  
+     * 
+     * @since S60 5.0
+     * @param aVariant Contains bitmap.
+     * @return Bitmap.
+     */
+    CFbsBitmap* CreateBitmapFromVariantL( const TLiwVariant& aVariant );
+    
+    /**
+     * Retrieves bitmap handle from a TLiwVariant object.
+     * The reason why such function is needed is that bitmap handle can be
+     * stored in many integer types.
+     * 
+     * @param aVariant a variant from which to extract the handle
+     * @param aHandle will contain the handle on successful execution
+     * @return KErrNone if handle extracted successfully, KErrNotFound if
+     *         the variant did not contain anything that can be cast to
+     *         integer. 
+     */
+    TInt ExtractBitmapHandleFromVariant( const TLiwVariant& aVariant,
+            TInt& aHandle );
+    
+private: // data
+   
+    /**
+     * Value.
+     */
+    TBuf8<KMaxLength> iValue;
+    
+    };
+    
+#endif // HNATTRIMGPROVLIWIMAGE_H_
+    
+