/*

* Copyright (c) 2006-2009 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:

*

*/

#ifndef __CHARVESTERIMAGEPLUGIN_H__

#define __CHARVESTERIMAGEPLUGIN_H__

#include <mdeobject.h>

#include <fbs.h>

#include <imageconversion.h>

#include <harvesterplugin.h>

#include <monitorplugin.h>

#include "mimetypemapping.h"

// FORWARD DECLARATION

class CFileData;

class CHarvestData;

class CHarvesterExifUtil;

/**

 * Helper class to hold all property definitions 

 * (pointers are not owned) used in harvester image plug-in.

 */

class CHarvesterImagePluginPropertyDefs : public CBase

	{

	public:

		// Common property definitions

		CMdEPropertyDef* iCreationDatePropertyDef;

		CMdEPropertyDef* iLastModifiedDatePropertyDef;

		CMdEPropertyDef* iSizePropertyDef;

		CMdEPropertyDef* iTimeOffsetPropertyDef;

		CMdEPropertyDef* iItemTypePropertyDef;

		// Media property definitions

		CMdEPropertyDef* iWidthPropertyDef;

		CMdEPropertyDef* iHeightPropertyDef;

		CMdEPropertyDef* iDescriptionPropertyDef;

		CMdEPropertyDef* iCommentPropertyDef;

		CMdEPropertyDef* iReleaseDatePropertyDef;

		CMdEPropertyDef* iCopyrightPropertyDef;

		CMdEPropertyDef* iCaptureDatePropertyDef;

		CMdEPropertyDef* iResolutionUnitPropertyDef;

		CMdEPropertyDef* iArtistPropertyDef;

		// Image property definitions

		CMdEPropertyDef* iPixelYDimensionPropertyDef;

		CMdEPropertyDef* iPixelXDimensionPropertyDef;

		CMdEPropertyDef* iBitsPerSamplePropertyDef;

		CMdEPropertyDef* iFrameCountPropertyDef;

		CMdEPropertyDef* iDateTimeOriginalPropertyDef;

		CMdEPropertyDef* iDateTimeDigitizedPropertyDef;

		CMdEPropertyDef* iDateTimePropertyDef;

		CMdEPropertyDef* iWhiteBalancePropertyDef;

		CMdEPropertyDef* iFlashPropertyDef;

		CMdEPropertyDef* iExposureProgramPropertyDef;

		CMdEPropertyDef* iMakePropertyDef;

		CMdEPropertyDef* iModelPropertyDef;

		CMdEPropertyDef* iOrientationPropertyDef;

		CMdEPropertyDef* iXResolutionPropertyDef;

		CMdEPropertyDef* iYResolutionPropertyDef;

		CMdEPropertyDef* iYCbCrPositioningPropertyDef;

		CMdEPropertyDef* iExposureTimePropertyDef;

		CMdEPropertyDef* iFNumberPropertyDef;

		CMdEPropertyDef* iExifVersionPropertyDef;

		CMdEPropertyDef* iShutterSpeedValuePropertyDef;

		CMdEPropertyDef* iApertureValuePropertyDef;

		CMdEPropertyDef* iFocalLengthPropertyDef;

		CMdEPropertyDef* iFlashPixVersionPropertyDef;

		CMdEPropertyDef* iColourSpacePropertyDef;

		CMdEPropertyDef* iISOSpeedRatingsPropertyDef;

		CMdEPropertyDef* iComponentsConfigurationPropertyDef;

		CMdEPropertyDef* iExposureBiasValuePropertyDef;

		CMdEPropertyDef* iSamplesPerPixelPropertyDef;

		CMdEPropertyDef* iThumbCompressionPropertyDef;

		CMdEPropertyDef* iThumbXResolutionPropertyDef;

		CMdEPropertyDef* iThumbYResolutionPropertyDef;

		CMdEPropertyDef* iThumbResolutionUnitPropertyDef;

		CMdEPropertyDef* iFocalLengthIn35mmFilmPropertyDef;

		CMdEPropertyDef* iMeteringModePropertyDef;

		CMdEPropertyDef* iRelatedSoundFilePropertyDef;

		CMdEPropertyDef* iFocalPlaneResolutionUnitPropertyDef;

		CMdEPropertyDef* iFocalPlaneXResolutionPropertyDef;

		CMdEPropertyDef* iFocalPlaneYResolutionPropertyDef;

        CMdEPropertyDef* iDraftPropertyDef;

	private:

		CHarvesterImagePluginPropertyDefs();

		void ConstructL(CMdEObjectDef& aObjectDef);

	public:	

		static CHarvesterImagePluginPropertyDefs* NewL(CMdEObjectDef& aObjectDef);

	};

class CHarvesterImagePlugin : public CHarvesterPlugin

	{

	public:

		/**

		* Construction

		* @return Harvester image plugin

		*/

		static CHarvesterImagePlugin* NewL();

		/**

		* Destruction

		*/

		virtual ~CHarvesterImagePlugin();

		/**

		* Harvesting multiple files

		* @param aHarvesterData  CHarvesterData datatype containing needed harvest data

 		* @param aClientData  TAny* to client specific data

		*/

		void HarvestL( CHarvesterData* aHD );

	protected:

	      void GetMimeType( const TDesC& aUri, TDes& aMimeType );

	private:

	    /**

	     * The method that actually extracts the metadata.

	     * @param aMetadataObject  Metadata object which is filled with metadata

	     * @param aFileData  File data to be filled

	     * @param aHarvestData  Harvested data to be filled

	     * @return Error code which indicates status of the operation

	     */                

		TInt GatherDataL( CMdEObject& aMetadataObject, CFileData& aFileData,

				CHarvestData& aHarvestData );

		/**

		 * Checks if the MIME type of current file is supported.

		 * @param aMimeBuf mime string

		 * @return KErrNone if MIME type is supported, KErrNotSupported if not

		 */

		TInt CheckIfMimeSupported( const TDesC& aMimeBuf );

		/**

		 * Reads file data from image file.

		 */

		void DataFromImageFileL( CFileData& aFileData );

		/**

		 * Handles creation of new mde objects.

		 */

		void HandleObjectPropertiesL( CHarvestData& aHd, CFileData& aFileData,

		 		CHarvesterData& aHarvesterData, TBool aIsAdd );

		// Default constructor

		CHarvesterImagePlugin();

		// 2nd phase constructor

		void ConstructL();

	private:

		enum TImageMetadataHandling

			{

			EJpegHandling,

			EGifHandling,

			EOtherHandling

			};

		/** */

        CHarvesterExifUtil* iExifUtil;

        /**

         *  Buffered image decoder (so that we don't have to create decoders all the time)

         */        

        CBufferedImageDecoder *iDecoder;

        /**

         *  Session to Font and Bitmap server. For some reason WMF-harvesting needs this

         */

        RFbsSession iFbs;

        /**

         *  Mime type mapper for extension/mimetype pairs

         */

        RArray< TMimeTypeMapping<TImageMetadataHandling> > iMimeTypeMappings;

        CHarvesterImagePluginPropertyDefs* iPropDefs;

        TInt iMaxTextLength;

	};

#endif