/*

* Copyright (c) 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: Juha Kauppinen, Mika Hokkanen

* 

* Description: Photo Browser

*

*/

#ifndef __IEBITMAPLOADER_H__

#define __IEBITMAPLOADER_H__

// Include files

#include <f32file.h>

#include <FBS.H>

#include <ImageConversion.h>

#include <IEEngine.h>

#include "IEFileLoader.h"

//#include "IEEngineImp.h"

#include <iclexifimageframe.h>

//#include <oommonitorsession.h>

#define DECODE_FROM_BUFFER

// Forward class declaration

class CIEFileLoader;

class CIEEngineUtils;

class MBitmapLoaderObserver

{

public:

	virtual void BitmapsLoadedL(TInt aError) = 0;

	virtual CIEFileLoader* GetFileLoader() = 0;

	virtual TInt GetGleMaxRes() = 0;

};

// Class declaration

class CIEBitmapLoader : public CActive

{

public:

	static CIEBitmapLoader* NewL(RFs& aFileServer, MBitmapLoaderObserver& aBitmapLoaderObserver, RCriticalSection* aCritical);

	~CIEBitmapLoader();

private:

	void ConstructL();

	CIEBitmapLoader(RFs& aFileServer, MBitmapLoaderObserver& aBitmapLoaderObserver, RCriticalSection* aCritical);

public: // From CActive

	void RunL();

	void DoCancel();

	TInt RunError(TInt aError);

public:

	void CIEBitmapLoader::LoadBitmapsL(TInt aIndex, TThumbSize aThumbRes);

	void GetOneBitmapL(CImageData* aImageData, CFbsBitmap* aBitmap, TThumbSize aThumbRes);

	void CancelFullSizeLoading();

	void SetImageDataMode(TImageArrayMode aMode);

private:

	void TargetDecodingSize(TSize aTgtSize, TSize& aSrcSize);

	//TPtr8 LoadImageIntoMemoryLC(const TDesC& aFileName);

	void CropImageL(CFbsBitmap* aOutput, CFbsBitmap* aInput) const;

private: //Data

	RFs&                   iFileServer;

	MBitmapLoaderObserver& iBitmapLoaderObserver;

	CImageDecoder*         iImageDecoder;

	CJPEGExifDecoder*      iExifDecoder;

	RCriticalSection*      iCritical;

	TImageArrayMode        iImageArrayMode;

	CImageData*            iImageData;

	TBool                  iUseExifTn;

	HBufC8*                iExifTn;

    CFbsBitmap*            iExifBitmap;

    CFbsBitmap*            iOutputBitmap;

    TUid                   decoderUid;

    TThumbSize             iThumbRes;

#ifdef DECODE_FROM_BUFFER

    HBufC8*                iSourceData;

#endif

};

#endif // __IEBITMAPLOADER_H__