--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/Phonebook2/ccapplication/ccapp/ccapputil/inc/ccappimagedecoding.h Fri Feb 19 22:40:27 2010 +0200
@@ -0,0 +1,183 @@
+/*
+* Copyright (c) 2008-2010 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: Utility class for asynchronously decoding the header thumbnail image
+*
+*/
+
+
+#ifndef CCAPPIMAGEDECODING_H_
+#define CCAPPIMAGEDECODING_H_
+
+#include <e32base.h>
+
+class CBitmapScaler;
+class CImageDecoder;
+class CFbsBitmap;
+class RFs;
+
+class MCCAppImageDecodingObserver
+ {
+public:
+ /**
+ * Bitmap is decoded.
+ * @param aBitmap Decoded bitmap, ownership is transferred.
+ */
+ virtual void BitmapReadyL( CFbsBitmap* aBitmap ) = 0;
+
+protected:
+ MCCAppImageDecodingObserver() {};
+ virtual ~MCCAppImageDecodingObserver() {};
+ };
+
+
+/**
+ * Utility class for asynchronously decoding the header thumbnail image
+ *
+ * @code
+ * ?good_class_usage_example(s)
+ * @endcode
+ *
+ * @lib ccapputil.dll
+ * @since S60 v9.2
+ */
+NONSHARABLE_CLASS( CCCAppImageDecoding ) : public CActive
+ {
+public:
+ /**
+ * Two-phased constructor
+ *
+ * @param aObserver
+ * @param aBitmapData Descriptor containing the bitmap data stream, takes ownership
+ * @param aImageFile Descriptor containing image file name full path, takes ownership
+ */
+ IMPORT_C static CCCAppImageDecoding* NewL(
+ MCCAppImageDecodingObserver& aObserver,
+ RFs& aFs,
+ HBufC8* aBitmapData,
+ HBufC* aImageFile );
+
+ /**
+ * Destructor
+ */
+ ~CCCAppImageDecoding();
+
+ /**
+ * Starts the decoding process
+ *
+ * @param aImageSize defines image size
+ */
+ IMPORT_C void StartL( const TSize& aImageSize );
+
+private:
+ /**
+ * From CActive
+ * (see details from baseclass )
+ */
+ void RunL();
+
+ /**
+ * From CActive
+ * (see details from baseclass )
+ */
+ void DoCancel();
+private:
+ /**
+ * First-phase (C++) constructor
+ */
+ inline CCCAppImageDecoding(
+ MCCAppImageDecodingObserver& aObserver,
+ RFs& aFs,
+ HBufC8* aBitmapData,
+ HBufC* aImageFile);
+
+ /**
+ * Second phase constructor
+ */
+ inline void ConstructL();
+
+ /**
+ * Scales bitmap
+ *
+ */
+ void ScaleBitmapL();
+
+ void CropBitmapL();
+
+ /**
+ * Create bitmap
+ *
+ */
+ void CreateBitmapL();
+
+ enum TCcaImageDecoderState
+ {
+ ECcaConvertThumbnailImage = 1,
+ ECcaScaleThumbnail,
+ ECcaReadImageFromFile,
+ ECcaConvertImageFromFile,
+ ECcaScaleImage
+ };
+
+ /**
+ * The image scaler whose service is called to scale the image
+ * Own.
+ */
+ CBitmapScaler* iBitmapScaler;
+
+ /**
+ * The image decoder whose service is called to decode the image
+ * Own.
+ */
+ CImageDecoder* iImgDecoder;
+
+ MCCAppImageDecodingObserver& iObserver;
+
+ /**
+ * Handle to the file server session for loading the bitmap
+ */
+ RFs& iFs;
+
+ /**
+ * The bitmap.
+ * Owned until decoding is complete, then ownersip is transferred to header control.
+ */
+ CFbsBitmap* iBitmap; // owned until completion
+
+ /**
+ * Own.
+ */
+ HBufC8* iBitmapData;
+
+ /**
+ * Own.
+ */
+ HBufC* iImageFullName;
+
+ /**
+ * Contact bitmap size
+ */
+ TSize iBitmapSize;
+
+ /**
+ * Decoder internal state
+ */
+ TInt iDecoderState;
+
+ /**
+ * Timer used to delay image conversion
+ */
+ RTimer iTimer;
+ };
+
+#endif /*CCAPPIMAGEDECODING_H_*/