--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/inc/glxtnbackgroundgenerationtask.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,165 @@
+/*
+* 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:    Thumbnail background generation task implementation
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 30/07/2007 by Simon Brooks
+ */
+
+#ifndef GLXTNBACKGROUNDGENERATIONTASK_H
+#define GLXTNBACKGROUNDGENERATIONTASK_H
+
+// INCLUDES
+
+#include "glxtnsavethumbnailtask.h"
+#include <glxsettingsmodel.h>
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+class CGlxtnFileUtility;
+class CGlxtnImageUtility;
+class CGlxtnVideoUtility;
+
+// CLASS DECLARATION
+
+/**
+* Background task to generate a thumbnail.
+*
+* @author Dan Rhodes
+* @ingroup glx_thumbnail_creator
+*/
+NONSHARABLE_CLASS(CGlxtnBackgroundGenerationTask) : public CGlxtnSaveThumbnailTask
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        * @param iItemId Media ID of item to thumbnail.
+        * @param aFileUtility File utility for use by the task.
+        * @param aClient Client initiating the request.
+        */
+        static CGlxtnBackgroundGenerationTask* NewL(
+                    const TGlxMediaId& iItemId, CGlxtnFileUtility& aFileUtility,
+                    MGlxtnThumbnailCreatorClient& aClient, 
+                    CGlxSettingsModel::TSupportedOrientations aSupportedOrientations);
+
+        /**
+        * Destructor.
+        */
+        virtual ~CGlxtnBackgroundGenerationTask();
+
+    private:    // From CGlxtnTask
+        TBool DoStartL(TRequestStatus& aStatus);
+    	void DoCancel(); 
+    	TBool DoRunL(TRequestStatus& aStatus);
+        TBool DoRunError(TInt aError);
+
+    private:
+        /**
+        * C++ default constructor.
+        * @param iItemId Media ID of item to thumbnail.
+        * @param aFileUtility File utility for use by the task.
+        * @param aClient Client initiating the request.
+        */
+        CGlxtnBackgroundGenerationTask(const TGlxMediaId& iItemId,
+                                    CGlxtnFileUtility& aFileUtility,
+                                    MGlxtnThumbnailCreatorClient& aClient, 
+                    CGlxSettingsModel::TSupportedOrientations aSupportedOrientations);
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+        /**
+        * Check whether next size already exists or needs to be generated.
+        * @param aStatus Request status for the asynchronous operation.
+        * @return ETrue if the task has issued an asyncronous request.
+        */
+        TBool CheckNextL(TRequestStatus& aStatus);
+
+        /**
+        * Create the next size to be generated.
+        * @param aStatus Request status for the asynchronous operation.
+        * @return ETrue if the task has issued an asyncronous request.
+        */
+        TBool ProcessNextL(TRequestStatus& aStatus);
+
+        /**
+        * Filter the thumbnail for the next required size.
+        * @param aStatus Request status for the asynchronous operation.
+        */
+        void FilterThumbnailL(TRequestStatus& aStatus);
+
+        /**
+        * Scale the thumbnail to the next required size.
+        * @param aStatus Request status for the asynchronous operation.
+        */
+        void ScaleThumbnailL(TRequestStatus& aStatus);
+
+        /**
+        * Decode the image for the required size.
+        * @param aStatus Request status for the asynchronous operation.
+        */
+        void DecodeImageL(TRequestStatus& aStatus);
+        /**
+        * calculates Grid Icon Size for landscape orientation and Fullscreen
+        * Image size depending on Layout defines.
+        */
+        void LayoutSpecificDataL();
+	
+    
+	private:    // Data
+        /** Pointer to client, or NULL after client goes away */
+        MGlxtnThumbnailCreatorClient* iClient;
+        /** File utility */
+        CGlxtnFileUtility& iFileUtility;
+        /** Array of sizes to check if need to generate */
+        RArray<TSize> iSizes;
+        /** Array of sizes to generate */
+        RArray<TSize> iTodoSizes;
+        /** Utility to get thumbnail from image */
+        CGlxtnImageUtility* iImageUtility;
+        /** Utility to get thumbnail from video */
+        CGlxtnVideoUtility* iVideoUtility;
+        /** Image loaded from file */
+        CFbsBitmap* iImage;
+       /** Image loaded from file */
+        CFbsBitmap* iFilteredImage;
+        /** Flag to show BadFileMarker not created so no need to delete **/
+        TBool iBadFileMarkerNotNeededFlag;
+        /** Flag to show whether image has been decoded yet **/
+        TBool iImageDecoded;
+        /** Flag to show which orientations are supported **/
+        CGlxSettingsModel::TSupportedOrientations iSupportedOrientations;
+		TSize iGridIconSize;
+		TSize iCoverflowIconSize;
+    };
+
+#endif  // GLXTNBACKGROUNDGENERATIONTASK_H
+
+// End of File