imagingandcamerafws/imagingfws/inc/icl/imagecodecdef.h
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     1 // Copyright (c) 2002-2009 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 __IMAGECODEC_DEF_H__
       
    17 #define __IMAGECODEC_DEF_H__
       
    18 
       
    19 #include <e32cmn.h>
       
    20 /**
       
    21 @internalComponent
       
    22 
       
    23 
       
    24 Class used to shadow the descriptor supplying the image data.
       
    25 
       
    26 It maintains a flag to determine whether the descriptor contains a
       
    27 filename or the image data itself.
       
    28 
       
    29 This class is not intended for public use.
       
    30 */
       
    31 class TImageParameterData
       
    32 	{
       
    33 public:
       
    34 
       
    35 	/**
       
    36 	Flag used to determine what the descriptor contains.
       
    37 	*/
       
    38 	enum TImageParameterDataFlag
       
    39 		{
       
    40 		/** Field not set.
       
    41 		*/
       
    42 		ENull		= 0x00000000,
       
    43 
       
    44 		/** Descriptor is a filename.
       
    45 		*/
       
    46 		EFilename	= 0x00000001,
       
    47 
       
    48 		/** Descriptor contains data.
       
    49 		*/
       
    50 		EData		= 0x00000002
       
    51 		};
       
    52 
       
    53 	TImageParameterData();
       
    54 	void SetFilenamePtr(const TDesC* aSourceFilenamePtr);
       
    55 	void SetDataPtr(const TDesC8* aSourceDataPtr);
       
    56 	IMPORT_C TBool IsFilename() const;
       
    57 	IMPORT_C const TDesC* SourceFilenamePtr() const;
       
    58 	IMPORT_C const TDesC8* SourceDataPtr() const;
       
    59 	TBool IsDataTypeDefined() const;
       
    60 
       
    61 private:
       
    62 	TImageParameterDataFlag iImageParameterDataFlag;
       
    63 	union
       
    64 		{
       
    65 		const TDesC* iSourceFilenamePtr;
       
    66 		const TDesC8* iSourceDataPtr;
       
    67 		};
       
    68 	};
       
    69 
       
    70 
       
    71 
       
    72 #endif // __IMAGECODEC_H__