videocollection/hgmyvideos/inc/vcxhgmyvideosthumbnailmanager.h
branchRCL_3
changeset 10 ce5ada96ab30
child 64 3eb824b18d67
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videocollection/hgmyvideos/inc/vcxhgmyvideosthumbnailmanager.h	Fri Mar 12 15:43:00 2010 +0200
@@ -0,0 +1,148 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:   CVcxHgMyVideosThumbnailManager class definition*
+*/
+
+
+#ifndef VCXHGMYVIDEOSTHUMBNAILMANAGER_H
+#define VCXHGMYVIDEOSTHUMBNAILMANAGER_H
+
+// INCLUDE FILES
+#include <thumbnailmanager.h>
+#include <thumbnailmanagerobserver.h>
+
+// FORWARD DECLARATIONS
+
+// CLASS DECLARATION
+
+/**
+ *
+ * @lib vcxhgmyvideos.lib
+ */
+NONSHARABLE_CLASS( CVcxHgMyVideosThumbnailManager ) :
+        public CBase,
+        public MThumbnailManagerObserver 
+    {
+    public:
+
+        /**
+         * Two-phased constructor.
+         * 
+         * @return New object.
+         */
+        static CVcxHgMyVideosThumbnailManager* NewL();
+
+        /**
+         * Two-phased constructor.
+         * 
+         * @return New object. 
+         */
+        static CVcxHgMyVideosThumbnailManager* NewLC();
+
+        /**
+         * Destructor.
+         */
+        virtual ~CVcxHgMyVideosThumbnailManager();
+
+    private: // From MThumbnailManagerObserver
+        
+        /**
+         * Preview thumbnail generation or loading is complete.
+         *
+         * @param aThumbnail An object representing the resulting thumbnail.
+         * @param aId Request ID for the operation
+         */
+        void ThumbnailPreviewReady( MThumbnailData& aThumbnail, TThumbnailRequestId aId );
+    
+        /**
+         * Final thumbnail bitmap generation or loading is complete.
+         *
+         * @param aError         Error code.
+         * @param aThumbnail     An object representing the resulting thumbnail.
+         * @param aId            Request ID for the operation.
+         */
+        void ThumbnailReady( TInt aError, MThumbnailData& aThumbnail, TThumbnailRequestId aId );
+
+    public: // New methods
+        /**
+         * Peeks if there is thumbnail and fetches it if it exist.
+         * No thumbnail creation is started when thumbnail does not exist.
+         *
+         * @param aSource 
+         * @return TThumbnailRequestId.
+         */
+        TThumbnailRequestId PeekL( CThumbnailObjectSource& aSource );
+
+        /**
+         * Gets thumbnail and creates it if it does not exist.
+         *
+         * @param aSource 
+         * @return TThumbnailRequestId.
+         */
+        TThumbnailRequestId GetL( CThumbnailObjectSource& aSource );
+
+        /**
+         * Cancels thumbnail request
+         *
+         * @param aRequestId
+         */
+        void Cancel( TThumbnailRequestId aRequestId );
+
+        /**
+         * Adds observer.
+         *
+         * @param aObserver 
+         */
+        void AddObserverL( MThumbnailManagerObserver& aObserver );
+
+        /**
+         * Removes observer.
+         *
+         * @param aObserver 
+         */
+        void RemoveObserver( MThumbnailManagerObserver& aObserver );
+
+    private:    
+
+        /**
+         * Default constructor
+         */
+        CVcxHgMyVideosThumbnailManager();
+
+        /**
+         * SessionL
+         * @return CThumbnailManager ref.
+         */
+        CThumbnailManager& SessionL();
+
+    private:
+
+        /**
+         * S60 Thumbnail Manager.
+         * Own.
+         */
+        CThumbnailManager* iTnManager;
+
+        /** 
+         * Used for storing the observers. Pointers are not own.
+         */ 
+        RPointerArray<MThumbnailManagerObserver> iTnObservers;
+
+        /** 
+         * Stores current thumbnail generation flags
+         */ 
+        CThumbnailManager::TThumbnailFlags iCurrentFlags;
+    };
+
+#endif // VCXHGMYVIDEOSTHUMBNAILMANAGER_H