diff -r 000000000000 -r 4e91876724a2 photosgallery/collectionframework/thumbnailcreator/inc/glxtndatabase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/inc/glxtndatabase.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,196 @@
+/*
+* 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 storage implementation
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 30/07/2007 by Simon Brooks
+ */
+
+#ifndef GLXTNDATABASE_H
+#define GLXTNDATABASE_H
+
+// INCLUDES
+
+#include <e32base.h>
+#include <f32file.h>
+#include <driveinfo.h>
+#include "mglxtnstorage.h"
+#include "mglxtnvolumedatabaseobserver.h"
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+class CGlxtnVolumeDatabase;
+
+// CLASS DECLARATION
+
+/**
+*  Default implementation of thumbnail storage.
+*
+* @author Dan Rhodes
+* @ingroup glx_thumbnail_creator
+*/
+class CGlxtnThumbnailDatabase : public CBase, public MGlxtnThumbnailStorage,
+                                public MGlxtnVolumeDatabaseObserver
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        * @param aDbFilename Filename (without path) for database.
+        * @param aStorageObserver Observer of storage operations.
+        */
+        IMPORT_C static CGlxtnThumbnailDatabase* NewL(const TDesC& aDbFilename,
+                MGlxtnThumbnailStorageObserver* aStorageObserver = NULL);
+
+        /**
+        * Destructor.
+        */
+        virtual ~CGlxtnThumbnailDatabase();
+
+    public: // New functions
+
+    public: // Functions from MGlxtnThumbnailStorage
+        void LoadThumbnailDataL(HBufC8*& aData, TGlxImageDataFormat& aFormat,
+                    const TGlxMediaId& aId, const CGlxtnFileInfo& aFileInfo,
+                    const TSize& aSize, TRequestStatus* aStatus);
+        void SaveThumbnailDataL(const TDesC8& aData,
+                    TGlxImageDataFormat aFormat, const TGlxMediaId& aId,
+                    const CGlxtnFileInfo& aFileInfo, const TSize& aSize,
+                    TRequestStatus* aStatus);
+        void DeleteThumbnailsL(const TGlxMediaId& aId,
+                    const CGlxtnFileInfo& aFileInfo, TRequestStatus* aStatus);
+        void CleanupThumbnailsL(TRequestStatus* aStatus);
+        void IsThumbnailAvailableL(const TGlxMediaId& aId,
+                    const CGlxtnFileInfo& aFileInfo,
+                    const TSize& aSize, TRequestStatus* aStatus);
+        void StorageCancel();
+        void NotifyBackgroundError(const TGlxMediaId& aId, TInt aError);
+
+    private:    // From MGlxtnVolumeDatabaseObserver
+        void HandleDatabaseError(TInt aError);
+        void HandleThumbnailIdFromMediaIdL(
+                                        const TGlxtnThumbnailId& aThumbId );
+        void HandleThumbnailIdFromFilenameL(
+                                        const TGlxtnThumbnailId& aThumbId );
+        void HandleThumbnailIdStoredL();
+        void HandleThumbnail(TGlxImageDataFormat aFormat, HBufC8* aData);
+        void HandleThumbnailStored();
+        void HandleMediaIdDeletedL();
+        void HandleThumbnailsDeletedL();
+        void HandleItemDeletedL();
+        void HandleAvailabilityChecked(TInt aResult);
+        void HandleDatabaseCleanedL();
+        TInt DriveName(const TInt& aDefaultDrive,  TDes& aDriveName);
+
+    private:
+
+        /**
+        * C++ default constructor.
+        */
+        CGlxtnThumbnailDatabase();
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        * @param aDbFilename Filename (without path) for database.
+        * @param aStorageObserver Observer of storage operations.
+        */
+        void ConstructL(const TDesC& aDbFilename,
+                        MGlxtnThumbnailStorageObserver* aStorageObserver);
+
+        /**
+        * Continue current operation after receiving the thumbnail ID.
+        */
+        void DoHandleThumbnailIdL();
+
+        /**
+        * Open a volume database on the specified drive.
+        * @param aDrive String beginnning with drive letter and colon.
+        */
+        CGlxtnVolumeDatabase* OpenDatabaseL(const TDesC& aDrive);
+
+        CGlxtnVolumeDatabase* OpenDatabaseL(const DriveInfo::TDefaultDrives& aDrive);
+
+        /**
+        * Delete the volume database if the storage media has changed.
+        * @param aDrive String beginnning with drive letter and colon.
+        */
+        void DeleteDBIfStorageChangedL(TFileName aPath);
+        
+        /**
+        * Delete the file at location aPath
+        * @param aPath The location of the file to be deleted.
+        */
+        void DeleteFile(const TDesC&  aPath)   ;
+
+        /**
+        * Recover from database file handling error
+        */
+        void RecoverFromDatabaseError();
+
+    private:    // Data
+        enum TDatabaseOperation
+            {
+            ELoading, ESaving, EDeleting, ECleaning, ECheckingAvailable
+            };
+
+        /** Pointer to a storage observer */
+        MGlxtnThumbnailStorageObserver* iStorageObserver;
+        /** File server session */
+        RFs iFs;
+        /** Path to the database files (excluding drive letter) */
+        TFileName iDatabasePath;
+        /** Drive name of the phone memory drive */
+        TDriveName iInternalDrive;
+        /** Array of open databases (one per volume) */
+        RPointerArray<CGlxtnVolumeDatabase> iDatabaseArray;
+        /** Request status for asynchronous operation */
+        TRequestStatus* iClientStatus;
+        /** Operation currently being carried out by the database */
+        TDatabaseOperation iCurrentOperation;
+        /** Media ID for request */
+        TGlxMediaId iMediaId;
+        /** URI for request (not owned) */
+        const CGlxtnFileInfo* iFileInfo;
+        /** Thumbnail size for request */
+        TSize iSize;
+        /** Data buffer for load request */
+        HBufC8** iLoadData;
+        /** Data buffer for save request */
+        TPtrC8 iSaveData;
+        /** Thumbnail format for load request */
+        TGlxImageDataFormat* iLoadFormat;
+        /** Thumbnail format for save request */
+        TGlxImageDataFormat iSaveFormat;
+        /** ID for thumbnail */
+        TGlxtnThumbnailId iThumbId;
+        /** Index to count through iDatabaseArray */
+        TInt  iDatabaseIndex;
+    };
+
+#endif  // GLXTNDATABASE_H
+
+// End of File