--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiImageLoaderUtil.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,134 @@
+/*
+* Copyright (c) 2006-2007 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:   Definition of CHuiImageLoaderUtil, a utility to load skin-able image/icon.
+*
+*/
+
+
+
+#ifndef __HUIIMAGELOADERUTIL_H__
+#define __HUIIMAGELOADERUTIL_H__
+
+#include <AknsUtils.h>
+#include <AknIconUtils.h>
+#include <uiacceltk/HuiTextureManager.h>
+
+
+class MHuiBitmapProvider;
+class CHuiImageLoader;
+
+/**
+ * CHuiImageLoaderUtil is a utility class to create image loader with the system skin 
+ * applied. CHuiImageLoaderUtil holds all MHuiBitmapProvider instance created through
+ * CreateImageLoaderL() so that appplication/control does not need to keep it by itself.
+ * 
+ * Typically, an application or a control needs to hold instance of CHuiImageLoaderUtil
+ * during entire its object life time, because bitmap provision callback from texture
+ * manager may be called even after instanciation of texture. For instance, image re-loading
+ * happens when application coming back to foreground and resource was released.
+ */
+class CHuiImageLoaderUtil: public CBase
+	{
+public:
+	/**
+	 * Constructor
+	 */
+	IMPORT_C CHuiImageLoaderUtil();
+
+	/**
+	 * Deconstructor
+	 */
+	IMPORT_C ~CHuiImageLoaderUtil();
+	
+	/**
+     * Create MHuiBitmapProvider instance to load image with Avkon skin item ID with 
+     * fallback. The fallback is used when the current skin does not contain the image with 
+     * skin item ID. If either fails, this leaves.
+     * Use CHuiTextureManager::CreateTextureL() with return value of this method as a
+     * bitmap provider to create a HUI texture.
+     *
+     * @param aID  An Akvon skin item ID of the graphical item (e.g. an icon) to load.
+     * @param aFileName  File name of graphics file e.g. mif file) when sepcified item is not found in the current skin.
+     * @param aBitmapId  ID of the bitmap when fallback is used.
+     * @param aMaskId  ID of the mask bitmap when fallback is used.
+     */
+	IMPORT_C MHuiBitmapProvider* CreateImageLoaderL(const TAknsItemID &aID, const TDesC &aFileName, TInt aBitmapId, TInt aMaskId);
+
+    /**
+     * Create MHuiBitmapProvider instance to load Application icon image.
+     * Use CHuiTextureManager::CreateTextureL() with return value of this method as a
+     * bitmap provider to create a HUI texture.
+     *
+     * @param aAppUid  Application UID of the icon to be created.
+     * @param aType  Type of the application icon. Likely EAknsAppIconTypeContext is used...
+     */
+	IMPORT_C MHuiBitmapProvider* CreateImageLoaderL(TUid aAppUid, TAknsAppIconType aType);
+
+
+    /**
+     * Set size of the image to be loaded. This must be called before calling CreateImageLoaderL.
+     * This call only sets information and does *NOT* cause any scalable icon rasterization. Also
+     * Size setting does not affect any of image loaders already created.
+     *
+     * @param aSize     Size in pixel.
+     * @param aMode     Scaling mode enumeration from Avkon. It takes either of following three.
+     *                    EAspectRatioPreserved
+     *                    EAspectRatioPreservedAndUnusedSpaceRemoved
+     *                    EAspectRatioNotPreserved
+     *
+     */
+	IMPORT_C void SetSize(TSize aSize, TScaleMode aMode=EAspectRatioPreserved);
+
+    /**
+     * Set skin instance, which is acquired from AknsUtils::SkinInstance(). If skin instance
+     * is not explicitly set with this method, the image loader will use skin instance from 
+     * AknsUtils::SkinInstance().
+     *
+     * @param aSkinInstance     An Avkon skin instamce.
+     */
+	IMPORT_C void SetSkinInstance(MAknsSkinInstance *aSkinInstance);
+
+    IMPORT_C virtual void ImageLoaderExtension(const TUid& aExtensionUid, TAny** aExtensionParamters );
+
+private:
+	/** Skin instance. */
+	MAknsSkinInstance *iSkinInstance;
+	
+	/** Size of image to be created */
+	TSize iSize;
+	
+	/** Scale mode of image to be created */
+	TScaleMode iScaleMode;
+	    
+protected:
+
+	/** An array to hold all loader created. */
+	RPointerArray<CHuiImageLoader> iImageLoaderList;
+
+private:
+
+    TAny* iSpare;
+	};
+
+
+class CHuiAutoSizeImageLoaderUtil : public CHuiImageLoaderUtil, public MHuiTextureAutoSizeObserver
+    {
+    // From MHuiTextureAutoSizeObserver
+    IMPORT_C virtual TBool PreferredSizeChanged(const CHuiTexture& aTexture, TInt aTextureId, const THuiRealSize& aPreferredSize);    
+    
+    // From MHuiTextureAutoSizeObserver
+    IMPORT_C virtual void PreferredSizeReportCompleted();        
+    };
+
+#endif // __HUIIMAGELOADERUTIL_H__
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