epoc32/include/icl/imageconstruct.h
branchSymbian2
changeset 2 2fe1408b6811
parent 0 061f57f2323e
child 4 837f303aceeb
     1.1 --- a/epoc32/include/icl/imageconstruct.h	Tue Nov 24 13:55:44 2009 +0000
     1.2 +++ b/epoc32/include/icl/imageconstruct.h	Tue Mar 16 16:12:26 2010 +0000
     1.3 @@ -1,1 +1,137 @@
     1.4 -imageconstruct.h
     1.5 +
     1.6 +// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.7 +// All rights reserved.
     1.8 +// This component and the accompanying materials are made available
     1.9 +// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
    1.10 +// which accompanies this distribution, and is available
    1.11 +// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
    1.12 +//
    1.13 +// Initial Contributors:
    1.14 +// Nokia Corporation - initial contribution.
    1.15 +//
    1.16 +// Contributors:
    1.17 +//
    1.18 +// Description:
    1.19 +// ImageConstruct.h - classes used during construction of decoders/encoders
    1.20 +// 
    1.21 +//
    1.22 +
    1.23 +#ifndef __ImageConstruct_h
    1.24 +#define __ImageConstruct_h
    1.25 +
    1.26 +#include <e32base.h>
    1.27 +
    1.28 +// forward declarations
    1.29 +class CImageDecoder;
    1.30 +class CImageDecoderPlugin;
    1.31 +class CImageEncoder;
    1.32 +class CImageEncoderPlugin;
    1.33 +class RCImageDecodeConstructTest;
    1.34 +class RCImageEncodeConstructTest;
    1.35 +
    1.36 +/**
    1.37 +@publishedAll
    1.38 +@released
    1.39 +
    1.40 +Provides functions related to constructing decoders.
    1.41 +
    1.42 +Objects of this class are loaded by ECOM, and it is this class which
    1.43 +is responsible for instantiating the decoder plugins. Plugin writers
    1.44 +must derive their own plugin specific variants. The derived class
    1.45 +is responsible for defining its own factory function to create instances
    1.46 +of itself.
    1.47 +*/
    1.48 +
    1.49 +class CImageDecodeConstruct : public CBase
    1.50 +	{
    1.51 +	friend class CImageDecoder;
    1.52 +public:
    1.53 +	IMPORT_C ~CImageDecodeConstruct();
    1.54 +
    1.55 +	IMPORT_C TUid ImplementationUid() const;
    1.56 +	// create new CImageDecoder - default creates basic CImageDecoder
    1.57 +	IMPORT_C virtual CImageDecoder* NewDecoderL() const;
    1.58 +
    1.59 +	/**
    1.60 +	Creates a new concrete CImageDecoderPlugin object.
    1.61 +
    1.62 +	This is a pure virtual function that each derived class must implement.
    1.63 +
    1.64 +	@return A pointer to a fully constructed CImageDecoderPlugin.
    1.65 +	*/
    1.66 +	virtual CImageDecoderPlugin* NewPluginL() const = 0;
    1.67 +
    1.68 +	// request threaded decode - default false
    1.69 +	IMPORT_C virtual TBool RequestThread() const;
    1.70 +protected:
    1.71 +	IMPORT_C CImageDecodeConstruct();
    1.72 +	IMPORT_C void ConstructL();
    1.73 +
    1.74 +private:
    1.75 +	IMPORT_C virtual void ReservedVirtual1();
    1.76 +	IMPORT_C virtual void ReservedVirtual2();
    1.77 +	IMPORT_C virtual void ReservedVirtual3();
    1.78 +	IMPORT_C virtual void ReservedVirtual4();
    1.79 +private:
    1.80 +	/**
    1.81 +	This member is internal and not intended for use.
    1.82 +	*/
    1.83 +	TUid iDtorIDKey;
    1.84 +
    1.85 +	/**
    1.86 +	This member is internal and not intended for use.
    1.87 +	*/
    1.88 +	TAny* iReserved;
    1.89 +
    1.90 +friend class RCImageDecodeConstructTest;
    1.91 +	};
    1.92 +
    1.93 +/**
    1.94 +@publishedAll
    1.95 +@released
    1.96 +
    1.97 +Provides functions related to constructing encoders.
    1.98 +
    1.99 +Objects of this class are loaded by ECOM, and it is this class which
   1.100 +is responsible for instantiating the encoder plugins. Plugin writers
   1.101 +must derive their own plugin specific variants. The derived class
   1.102 +is responsible for defining its own factory function to create instances
   1.103 +of itself.
   1.104 +*/
   1.105 +class CImageEncodeConstruct : public CBase
   1.106 +	{
   1.107 +	friend class CImageEncoder;
   1.108 +public:
   1.109 +	IMPORT_C ~CImageEncodeConstruct();
   1.110 +
   1.111 +	IMPORT_C TUid ImplementationUid() const;
   1.112 +	// create new CImageEncoder - default creates basic CImageEncoder
   1.113 +	IMPORT_C virtual CImageEncoder* NewEncoderL() const;
   1.114 +
   1.115 +	/**
   1.116 +	Creates new concrete CImageEncoderPlugin object.
   1.117 +
   1.118 +	This is a virtual function that each derived class must implement.
   1.119 +
   1.120 +	@return A pointer to fully constructed CImageEncoderPlugin.
   1.121 +	*/
   1.122 +	virtual CImageEncoderPlugin* NewPluginL() const = 0;
   1.123 +
   1.124 +	// request threaded encode - default false
   1.125 +	IMPORT_C virtual TBool RequestThread() const;
   1.126 +protected:
   1.127 +	IMPORT_C CImageEncodeConstruct();
   1.128 +	IMPORT_C void ConstructL();
   1.129 +
   1.130 +private:
   1.131 +	IMPORT_C virtual void ReservedVirtual1();
   1.132 +	IMPORT_C virtual void ReservedVirtual2();
   1.133 +	IMPORT_C virtual void ReservedVirtual3();
   1.134 +	IMPORT_C virtual void ReservedVirtual4();
   1.135 +private:
   1.136 +	TUid iDtorIDKey;
   1.137 +	TAny* iReserved;
   1.138 +friend class RCImageEncodeConstructTest;
   1.139 +	};
   1.140 +
   1.141 +#endif //__ImageConstruct_h