imaging/imagingfws/src/JPEGExifPlugin.cpp
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     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 // ExtendedPlugin.cpp
       
    15 // 
       
    16 //
       
    17 
       
    18 #include "JPEGExifPlugin.h"
       
    19 
       
    20 //CJPEGExifDecoder
       
    21 /**
       
    22 Constructs a new exif decoder.
       
    23 
       
    24 A leave occurs if there is insufficient memory available.
       
    25 
       
    26 @return A pointer to the new exif jpeg decoder.
       
    27 */
       
    28 EXPORT_C CJPEGExifDecoder* CJPEGExifDecoder::NewL()
       
    29 	{
       
    30 	CJPEGExifDecoder* self;
       
    31 	self = new (ELeave) CJPEGExifDecoder;
       
    32 	CleanupStack::PushL(self);
       
    33 	self->ConstructL();
       
    34 	CleanupStack::Pop(self);
       
    35 	return self;
       
    36 	}
       
    37 
       
    38 /**
       
    39 Initialises an exif decoder.
       
    40 
       
    41 A leave occurs if the associated ICL plugin could not be instanciated
       
    42 */
       
    43 EXPORT_C void CJPEGExifDecoder::ConstructL()
       
    44 	{
       
    45 	iBody = CJPEGExifDecoder::CBody::NewL(*this);
       
    46 	}
       
    47 
       
    48 /**
       
    49 @publishedPartner
       
    50 @released
       
    51 constructor
       
    52 */
       
    53 EXPORT_C CJPEGExifDecoder::CJPEGExifDecoder()
       
    54 	{
       
    55 	}
       
    56 
       
    57 /**
       
    58 @publishedPartner
       
    59 @released
       
    60 destructor
       
    61 */
       
    62 EXPORT_C CJPEGExifDecoder::~CJPEGExifDecoder()
       
    63 	{
       
    64 	delete iBody;
       
    65 	}
       
    66 	
       
    67 /**
       
    68 gets the metadata associated to this instance of the decoder
       
    69 
       
    70 NULL is returned if no metadata was found
       
    71 
       
    72 @return A pointer to the metadata
       
    73 */
       
    74 EXPORT_C MExifMetadata* CJPEGExifDecoder::ExifMetadata()
       
    75 	{
       
    76 	return iBody->ExifMetadata();		
       
    77 	}
       
    78 
       
    79 //CJPEGExifDecoder::iBody
       
    80 /**
       
    81 create a new body for a defined exif jpeg decoder
       
    82 
       
    83 A leave occurs if there is insufficient memory available.
       
    84 
       
    85 @param  aHandle
       
    86 	a reference on the exif decoder this body has to be associated to.
       
    87 
       
    88 @return A pointer to the body.
       
    89 */
       
    90 EXPORT_C CJPEGExifDecoder::CBody* CJPEGExifDecoder::CBody::NewL(CJPEGExifDecoder& aHandle)
       
    91 	{
       
    92 	CJPEGExifDecoder::CBody* self;
       
    93 	self = new (ELeave) CJPEGExifDecoder::CBody(aHandle);
       
    94 	return self;
       
    95 	}
       
    96 
       
    97 /**
       
    98 constructor
       
    99 
       
   100 instanciates a new body for a defined exif jpeg decoder
       
   101 A leave occurs if there is insufficient memory available.
       
   102 
       
   103 @param  aHandle
       
   104 	a reference on the exif decoder this body has to be associated to.
       
   105 */
       
   106 CJPEGExifDecoder::CBody::CBody(CJPEGExifDecoder& aHandle) : iHandle(aHandle)
       
   107 	{
       
   108 	}
       
   109 	
       
   110 /**
       
   111 Gets the metadata associated with this instance of the decoder
       
   112 
       
   113 returns NULL if no metadata was found
       
   114 
       
   115 @return A pointer to the metadata.
       
   116 */
       
   117 EXPORT_C MExifMetadata* CJPEGExifDecoder::CBody::ExifMetadata()
       
   118 	{
       
   119 	CJPEGExifDecoderPlugin* plugin;
       
   120 	plugin = static_cast<CJPEGExifDecoderPlugin*>(iHandle.Plugin());
       
   121 	return plugin->ExifMetadata();		
       
   122 	}
       
   123 
       
   124 
       
   125 //CJPEGExifEncoder
       
   126 /**
       
   127 Constructs a new exif encoder.
       
   128 
       
   129 A leave occurs if there is insufficient memory available.
       
   130 
       
   131 @return A pointer to the new jpeg exif encoder.
       
   132 */
       
   133 EXPORT_C CJPEGExifEncoder* CJPEGExifEncoder::NewL()
       
   134 	{
       
   135 	CJPEGExifEncoder* self;
       
   136 	self = new (ELeave) CJPEGExifEncoder;
       
   137 	CleanupStack::PushL(self);
       
   138 	self->ConstructL();
       
   139 	CleanupStack::Pop(self);
       
   140 	return self;
       
   141 	}
       
   142 
       
   143 /**
       
   144 Initialises an exif encoder.
       
   145 
       
   146 A leave occurs if the associated ICL plugin could not be instanciated
       
   147 */
       
   148 EXPORT_C void CJPEGExifEncoder::ConstructL()
       
   149 	{
       
   150 	iBody = CJPEGExifEncoder::CBody::NewL(*this);
       
   151 	}
       
   152 
       
   153 /**
       
   154 @publishedPartner
       
   155 @released
       
   156 constructor
       
   157 */
       
   158 EXPORT_C CJPEGExifEncoder::CJPEGExifEncoder()
       
   159 	{
       
   160 	}
       
   161 
       
   162 /**
       
   163 @publishedPartner
       
   164 @released
       
   165 destructor
       
   166 */
       
   167 EXPORT_C CJPEGExifEncoder::~CJPEGExifEncoder()
       
   168 	{
       
   169 	delete iBody;
       
   170 	}
       
   171 	
       
   172 /**
       
   173 gets the metadata associated to this instance of the encoder
       
   174 
       
   175 NULL is returned if no metadata was found
       
   176 
       
   177 @return A pointer to the metadata
       
   178 */
       
   179 EXPORT_C MExifMetadata* CJPEGExifEncoder::ExifMetadata()
       
   180 	{
       
   181 	return iBody->ExifMetadata();		
       
   182 	}
       
   183 
       
   184 //CJPEGExifEncoder::iBody
       
   185 /**
       
   186 create a new body for a defined exif jpeg encoder
       
   187 
       
   188 A leave occurs if there is insufficient memory available.
       
   189 
       
   190 @param  aHandle
       
   191 	a reference on the exif encoder this body has to be associated to.
       
   192 
       
   193 @return A pointer to the body.
       
   194 */
       
   195 EXPORT_C CJPEGExifEncoder::CBody* CJPEGExifEncoder::CBody::NewL(CJPEGExifEncoder& aHandle)
       
   196 	{
       
   197 	CJPEGExifEncoder::CBody* self;
       
   198 	self = new (ELeave) CJPEGExifEncoder::CBody(aHandle);
       
   199 	return self;
       
   200 	}
       
   201 
       
   202 /**
       
   203 constructor
       
   204 
       
   205 instanciates a new body for a defined exif jpeg encoder
       
   206 A leave occurs if there is insufficient memory available.
       
   207 
       
   208 @param  aHandle
       
   209 	a reference on the exif decoder this body has to be associated to.
       
   210 */
       
   211 CJPEGExifEncoder::CBody::CBody(CJPEGExifEncoder& aHandle) : iHandle(aHandle)
       
   212 	{
       
   213 	}
       
   214 	
       
   215 /**
       
   216 Gets the metadata associated with this instance of the decoder
       
   217 
       
   218 returns NULL if no metadata was found
       
   219 
       
   220 @return A pointer to the metadata.
       
   221 */
       
   222 EXPORT_C MExifMetadata* CJPEGExifEncoder::CBody::ExifMetadata()
       
   223 	{
       
   224 	CJPEGExifEncoderPlugin* plugin;
       
   225 	plugin = static_cast<CJPEGExifEncoderPlugin*>(iHandle.Plugin());
       
   226 	return plugin->ExifMetadata();		
       
   227 	}
       
   228 
       
   229 
       
   230 
       
   231 
       
   232 /**
       
   233 Gets the metadata associated with this instance of the exif transform
       
   234 
       
   235 returns NULL if no metadata was found
       
   236 
       
   237 @return A pointer to the metadata.
       
   238 */
       
   239 EXPORT_C MExifMetadata* CJPEGExifTransformExtension::ExifMetadata()
       
   240 	{
       
   241 	return NULL;
       
   242 	}
       
   243 
       
   244