imagehandlingutilities/thumbnailmanager/thumbnailserver/inc/thumbnaildecodetask.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/imagehandlingutilities/thumbnailmanager/thumbnailserver/inc/thumbnaildecodetask.h Tue Jan 26 15:18:05 2010 +0200
@@ -0,0 +1,136 @@
+/*
+* 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: Task for decoding a thumbnail
+ *
+*/
+
+
+#ifndef THUMBNAILDECODETASK_H
+#define THUMBNAILDECODETASK_H
+
+#include <apmstd.h>
+
+#include "thumbnailtask.h"
+#include "thumbnailprovider.h"
+
+
+class CThumbnailServer;
+
+/**
+ * Task for decoding a thumbnail.
+ *
+ * @since S60 v5.0
+ */
+class CThumbnailDecodeTask: public CThumbnailTask,
+ public MThumbnailProviderObserver
+ {
+public:
+
+ /**
+ * C++ default constructor
+ *
+ * @since S60 v5.0
+ * @param aProcessor Processor object for running tasks.
+ * @param aServer Thumbnail server in use.
+ * @param aBuffer Image in JPEG mode.
+ * @param aPriority Priority of the request.
+ * @return New CThumbnailDecodeTask object.
+ */
+ CThumbnailDecodeTask( CThumbnailTaskProcessor& aProcessor, CThumbnailServer& aServer, TDesC8* aBuffer,
+ TInt aPriority, TDisplayMode aDisplayMode);
+
+ /**
+ * Destructor.
+ *
+ * @since S60 v5.0
+ */
+ virtual ~CThumbnailDecodeTask();
+
+ /**
+ * StartL
+ *
+ * @since S60 v5.0
+ */
+ void StartL();
+
+ /**
+ * Handles an active object's request completion event.
+ *
+ * @since S60 v5.0
+ */
+ void RunL();
+
+ /**
+ * Implements cancellation of an outstanding request.
+ *
+ * @since S60 v5.0
+ */
+ void DoCancel();
+
+private:
+
+ /**
+ * For notifying when task has been finished.
+ *
+ * @since S60 v5.0
+ * @param aError Error code.
+ * @param aBitmap Thumbnail image.
+ * @param aOriginalSize Original image size.
+ */
+ void ThumbnailProviderReady( const TInt aError, CFbsBitmap* aBitmap, const
+ TSize& aOriginalSize, const TBool aEXIF, const TBool aPortait );
+
+
+private:
+ // Data
+
+ /**
+ * Server.
+ */
+ CThumbnailServer& iServer;
+
+ /**
+ * Image buffer
+ */
+ TDesC8* iBuffer;
+
+ /**
+ * Size of the original image.
+ */
+ TSize iOriginalSize;
+
+ /**
+ * Thumbnail provider implementation.
+ * Not own.
+ */
+ CThumbnailProvider* iProvider;
+
+ /**
+ * If set, scaled bitmap must be released from pool.
+ */
+ TInt iBitmapHandle;
+
+ /**
+ * Temporary buffer for client/server parameters
+ */
+ TThumbnailRequestParamsPckgBuf iParamsBuf;
+
+ /*
+ * Displaymode of requested TN
+ */
+ TDisplayMode iDisplayMode;
+
+};
+
+#endif // THUMBNAILGENERATETASK_H