--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/upnpmediaserver/contentdirectoryservice/inc/upnpthumbnailcreator.h Thu Dec 17 08:52:00 2009 +0200
@@ -0,0 +1,213 @@
+/** @file
+* Copyright (c) 2005-2006 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: Declares ThumbnailCreator class.
+*
+*/
+
+
+
+#ifndef C_CUPNPTHUMBNAILCREATOR_H
+#define C_CUPNPTHUMBNAILCREATOR_H
+
+//INCLUDE
+#include <e32base.h>
+#include <f32file.h>
+#include <gulicon.h>
+#include <mdaimageconverter.h>
+#include "upnpcontentdirectoryglobals.h"
+
+
+//FORWARD DECLARATIONS
+class CImageEncoder;
+class CImageDecoder;
+class CBitmapScaler;
+class CFbsBitmap;
+class CUpnpThumbnailCreator;
+class MUpnpThumbnailCreatorObserver;
+
+
+/**
+* @brief Thumbnail Creator Observer
+*
+* @lib AVContentDirectory.lib
+* @since Series60 3.1
+*/
+class MUpnpThumbnailCreatorObserver
+{
+public:
+ /*
+ *
+ * @since Series S60 3.1
+ * @param aThCreator
+ * @param Result
+ */
+ virtual void NotifyThumbnailResultL(CUpnpThumbnailCreator* aThCreator, TInt aResult ) = 0;
+};
+
+
+
+/**
+* @brief Thumbnail Creator
+*
+* @lib AVContentDirectory.lib
+* @since Series60 3.1
+*/
+NONSHARABLE_CLASS( CUpnpThumbnailCreator ): public CActive
+ {
+public:
+
+ enum TPhase
+ {
+ EDecode,
+ EEncode,
+ EScaling,
+ ESleep,
+ EDecodeObject
+ };
+
+
+ /**
+ * Two-phased constructor for building CUpnpThumbnailCreator.
+ * @since Series60 3.1
+ * @param aObserver
+ */
+ static CUpnpThumbnailCreator* NewLC( MUpnpThumbnailCreatorObserver* aObserver );
+
+ /**
+ * Destructor function; called automatically from the destructor of a
+ * derived class
+ **/
+ ~CUpnpThumbnailCreator();
+
+
+ /**
+ * Function creates thumbnail for given image file
+ * @since Series60 3.1
+ * @param aSourceFile full file name
+ **/
+ void CreateL( const TDesC& aSourceFile, const TDesC& aThumbName );
+
+ /**
+ *
+ * @since Sereries S60 3.1
+ */
+ TFileName GetFileName();
+
+ /**
+ *
+ * @since Sereries S60 3.1
+ */
+ TPtrC GetFileExt();
+
+ /**
+ * Getter for file size
+ */
+ TFileName GetPath();
+
+ /**
+ * Getter for file size
+ **/
+ TSize GetSize(const TDesC& aSourceFile);
+
+private:
+
+ /**
+ * By default Symbian 2nd phase constructor is private
+ * @since Series60 3.1
+ */
+ void ConstructL();
+
+ /**
+ * First phase constructor.
+ * @param aObserver - pointer to observer
+ * @since Series60 3.1
+ **/
+ CUpnpThumbnailCreator( MUpnpThumbnailCreatorObserver* aObserver );
+
+ /**
+ * Encode bitmap to jpeg and writes it to file.
+ * @since Series60 3.1
+ **/
+ void EncodeAndConvertL();
+
+ /**
+ * Implementation of pure virtual from CActive
+ * serves decoding phases completion
+ * @since Series60 3.1
+ */
+ void RunL();
+
+ /**
+ * Implementation of virtual from CActive
+ * serves decoding phases completion
+ * @since Series60 3.1
+ */
+ TInt RunError(TInt aErr);
+
+ /**
+ * Implementation of pure virtual from CActive
+ * @since Series60 3.1
+ */
+ void DoCancel();
+
+ /**
+ * Calculate resizing ratio (2,4 and 8) for decoder
+ * in order not to create big bitmaps into memory
+ * @param aLoadSize - function stores computed size in it
+ * @since Series60 3.1
+ */
+ void CalculateSize( TSize& aLoadSize );
+
+ /**
+ * Used internally by CalculateSize
+ * @since Series60 3.1
+ */
+ TInt DivisionCeil( const TInt aVal, const TInt aDiv );
+
+
+private:
+ //Observer
+ MUpnpThumbnailCreatorObserver* iObserver;
+ //File server
+ RFs iFs;
+ //Image decoder
+ CImageDecoder* iDecoder;
+ //Image encoder
+ CImageEncoder* iEncoder;
+ //Scaler
+ CBitmapScaler* iScaler;
+ //Bitmap
+ CFbsBitmap* iBitmap;
+ //Bitmap default size
+ TSize iSize;
+
+ // Parser
+ TParse iParse;
+ // Extension
+ TBuf<KExtensionLength> iExtension;
+ //State enum
+ TPhase iPhase;
+ //File name e.g. pic.jpg
+ TFileName iFileName;
+ //Path
+ TPath iPath;
+ //Image type uid
+ TUid iImageType;
+ //Old image size
+ TSize iOldSize;
+ //frame info
+ TFrameInfo iInfo;
+ };
+
+#endif // C_CUPNPTHUMBNAILCREATOR_H