--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/inc/glxtnzoomedimagetask.h Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,97 @@
+/*
+* 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: Task to generate a cropped thumbnail for a JPEG image.
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 30/07/2007 by Simon Brooks
+ */
+
+
+#ifndef C_GLXTNZOOMEDIMAGETASK_H
+#define C_GLXTNZOOMEDIMAGETASK_H
+
+#include "glxtntask.h"
+
+#include <glxthumbnailinfo.h> // For TGlxThumbnailFilter
+
+class CGlxtnFileInfo;
+class CGlxtnFileUtility;
+class TGlxThumbnailRequest;
+class CFbsBitmap;
+class CExtJpegDecoder;
+
+/**
+ * Task to generate a cropped thumbnail for a JPEG image.
+ *
+ * @ingroup glx_thumbnail_creator
+ */
+NONSHARABLE_CLASS(CGlxtnZoomedImageTask) : public CGlxtnClientTask
+ {
+public:
+ /**
+ * Two-phased constructor.
+ */
+ static CGlxtnZoomedImageTask* NewL(
+ const TGlxThumbnailRequest& aRequestInfo,
+ CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient);
+ ~CGlxtnZoomedImageTask();
+
+protected: // From CGlxtnTask
+ virtual TBool DoStartL(TRequestStatus& aStatus);
+ virtual void DoCancel();
+ virtual TBool DoRunL(TRequestStatus& aStatus);
+ TBool DoRunError(TInt aError);
+
+private:
+ CGlxtnZoomedImageTask(const TGlxThumbnailRequest& aRequestInfo,
+ CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient);
+ void ConstructL(TInt aBitmapHandle);
+
+ void DecodePartialImageL(TRequestStatus& aStatus);
+ void CreateDecoderL(TInt aDecoderType);
+
+private:
+ enum TTaskState
+ {
+ EStateFetchingUri, EStateDecoding, EStateProcessing
+ };
+
+ /** File utility (not owned) */
+ CGlxtnFileUtility& iFileUtility;
+ /** File information for item to thumbnail */
+ CGlxtnFileInfo* iInfo;
+ /** Current state for task state machine */
+ TTaskState iState;
+ /** Bitmap for the generated thumbnail */
+ CFbsBitmap* iThumbnail;
+ /** Decoder for the JPEG file */
+ CExtJpegDecoder* iDecoder;
+ /** Requested thumbnail size */
+ TSize iRequestedSize;
+ /** Part of image to keep */
+ TRect iCroppingRect;
+ /** Filtering to apply to generated image */
+ TGlxThumbnailFilter iFilter;
+ /** DRM allowed flag passed from thumbnail request */
+ TBool iDrmAllowed;
+ /** Whether current file is DRM protected */
+ TBool iProtected;
+ };
+
+#endif // C_GLXTNZOOMEDIMAGETASK_H