1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef EXIFENCODER_H

    17 #define EXIFENCODER_H

    18 

    19 #include <e32base.h>

    20 #include "ifdgeneral.h"

    21 #include <iclexif.h>

    22 #include "ExifGeneralConsts.h"

    23 #include "exifreaderwriter.h"

    24 

    25 // CExifEncoder - provides specialisation of CExifReaderWriter for use within the 

    26 // Jpeg Exif Encoder

    27 class CExifEncoder : public CExifReaderWriter

    28 	{

    29 public:

    30 

    31 	static CExifEncoder* NewL(TBool aEncodeThumbnail=ETrue);

    32 	~CExifEncoder();

    33 	

    34 	// Functions derived from CExifReaderWriter.

    35 	// (Getters not used - this is an encoder).

    36 	TInt GetParam8(TUint aTag, TUint aIfd, HBufC8*& aParam) const;

    37 	TInt GetParam16(TUint aTag, TUint aIfd, HBufC16*& aParam) const;	

    38 	TInt GetIntegerParam(TUint aTag, TUint aIfd, TInt& aParam) const;

    39 	TInt GetRationalParam(TUint aTag, TUint aIfd, TInt& aNumerator, TInt& aDenominator) const;	

    40 	TInt GetShortParam(TUint aTag, TUint aIfd, TUint16& aParam) const;

    41 	TInt GetIntegerArrayParam(TUint aTag, TUint aIfd, CArrayFix<TInt>& aParam) const;

    42 	TInt GetShortArrayParam(TUint aTag, TUint aIfd, CArrayFix<TUint16>& aParam) const;

    43 	TInt GetRationalArrayParam(TUint aTag, TUint aIfd, CArrayFix<TRational>& aParam) const;

    44 

    45 	

    46 	//Functions not derived from MExifMetaData.	

    47 	// Creates the Exif Header, and returns pointer to the block of data.

    48 	TPtrC8 CreateExifHeaderL();

    49 	void SetEnableThumbnailL(TBool aEnable);

    50 

    51 	// Returns an offset to the JPEGInterchangeFormatLength tag value/offset field.

    52 	TInt ThumbnailLengthOffset();

    53 	TInt ExifLengthOffset();

    54 

    55 private: // Functions

    56 	

    57 	CExifEncoder(TBool aEncodeThumbnail);

    58 	void ConstructL();

    59 	virtual void SetIfd1L();

    60 		

    61 private: // Member variables.

    62 

    63 	HBufC8* iExifData;

    64 	};

    65 

    66 #endif // EXIFENCODER_H