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1 /* |
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2 * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Contains implementation of the CMetaDataFieldContainer |
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15 * class.This class provides. |
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16 * |
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17 */ |
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18 |
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19 |
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20 |
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21 // INCLUDE FILES |
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22 #include <MetaDataFieldContainer.h> |
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23 #include "MetaDataField.h" |
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24 #ifdef _DEBUG |
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25 #include <e32svr.h> |
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26 #endif |
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27 |
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28 // ============================ MEMBER FUNCTIONS =============================== |
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29 |
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30 // ----------------------------------------------------------------------------- |
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31 // CMetaDataFieldContainer::CMetaDataFieldContainer |
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32 // C++ default constructor can NOT contain any code, that |
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33 // might leave. |
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34 // ----------------------------------------------------------------------------- |
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35 // |
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36 CMetaDataFieldContainer::CMetaDataFieldContainer() |
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37 { |
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38 iD16 = NULL; |
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39 } |
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40 |
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41 // ----------------------------------------------------------------------------- |
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42 // CMetaDataFieldContainer::ConstructL |
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43 // Symbian 2nd phase constructor can leave. |
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44 // ----------------------------------------------------------------------------- |
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45 // |
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46 void CMetaDataFieldContainer::ConstructL() |
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47 { |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CMetaDataFieldContainer::NewLC |
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52 // Two-phased constructor. |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 CMetaDataFieldContainer* CMetaDataFieldContainer::NewL() |
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56 { |
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57 #ifdef _DEBUG |
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58 RDebug::Print(_L("CMetaDataFieldContainer::NewL")); |
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59 #endif |
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60 CMetaDataFieldContainer* self = new( ELeave ) CMetaDataFieldContainer; |
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61 CleanupStack::PushL( self ); |
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62 self->ConstructL(); |
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63 CleanupStack::Pop(); |
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64 return self; |
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65 } |
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66 |
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67 // Destructor |
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68 CMetaDataFieldContainer::~CMetaDataFieldContainer() |
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69 { |
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70 if(i16BitAlbumArt) |
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71 { |
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72 delete iD16; |
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73 } |
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74 iFields.ResetAndDestroy(); |
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75 iFields.Close(); |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CMetaDataFieldContainer::Count |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 EXPORT_C TInt CMetaDataFieldContainer::Count() const |
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83 { |
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84 return iFields.Count(); |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CMetaDataFieldContainer::Field |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 EXPORT_C TPtrC CMetaDataFieldContainer::Field( |
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92 TMetaDataFieldId aFieldId ) const |
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93 { |
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94 TInt count( iFields.Count() ); |
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95 for ( TInt i = 0; i < count; i++ ) |
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96 { |
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97 if ( iFields[i]->Id() == aFieldId ) |
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98 { |
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99 if(aFieldId != EMetaDataJpeg) |
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100 { |
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101 return iFields[i]->Data(); |
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102 } |
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103 else |
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104 { |
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105 TPtrC8 pic = iFields[i]->Data8(); |
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106 TInt length = pic.Length(); |
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107 if( length ) |
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108 { |
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109 if( iD16 ) |
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110 { |
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111 delete iD16; |
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112 iD16 = NULL; |
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113 } |
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114 TRAPD(err, iD16 = HBufC::NewL(length)); |
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115 if (err == KErrNone) |
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116 { |
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117 i16BitAlbumArt = ETrue; |
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118 TPtr unicode( iD16->Des() ); |
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119 unicode.Copy( pic ); |
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120 return unicode; |
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121 } |
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122 } |
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123 } |
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124 } |
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125 } |
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126 // Searched field Id wasn't found |
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127 return KNullDesC(); |
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128 } |
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129 |
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130 |
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131 |
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132 // ----------------------------------------------------------------------------- |
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133 // CMetaDataFieldContainer::Field8 |
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134 // ----------------------------------------------------------------------------- |
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135 // |
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136 EXPORT_C TPtrC8 CMetaDataFieldContainer::Field8( |
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137 TMetaDataFieldId aFieldId ) const |
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138 { |
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139 #ifdef _DEBUG |
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140 RDebug::Print(_L("CMetaDataFieldContainer::Field8 %d"), aFieldId); |
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141 #endif |
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142 TInt count( iFields.Count() ); |
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143 // 8 bit field is only valid for EMetaDataJpeg |
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144 for ( TInt i = 0; i < count; i++ ) |
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145 { |
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146 if ( iFields[i]->Id() == aFieldId ) |
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147 { |
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148 if(aFieldId == EMetaDataJpeg) |
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149 return iFields[i]->Data8(); |
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150 else |
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151 return KNullDesC8(); //Only EMetaDataJpeg has valid 8 bit data |
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152 } |
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153 } |
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154 // Searched field Id wasn't found |
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155 return KNullDesC8(); |
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156 } |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // CMetaDataFieldContainer::AppendL |
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160 // ----------------------------------------------------------------------------- |
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161 // |
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162 EXPORT_C void CMetaDataFieldContainer::AppendL( |
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163 TMetaDataFieldId aFieldId, |
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164 const TDesC& aData ) |
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165 { |
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166 CMetaDataField* item = CMetaDataField::NewLC( aFieldId, aData ); |
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167 User::LeaveIfError( iFields.Append( item ) ); |
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168 CleanupStack::Pop(); |
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169 } |
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170 |
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171 // ----------------------------------------------------------------------------- |
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172 // CMetaDataFieldContainer::AppendL for 8-bit data |
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173 // ----------------------------------------------------------------------------- |
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174 // |
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175 EXPORT_C void CMetaDataFieldContainer::AppendL( |
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176 TMetaDataFieldId aFieldId, |
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177 const TDesC8& aData ) |
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178 { |
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179 CMetaDataField* item = CMetaDataField::NewLC( aFieldId, aData ); |
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180 User::LeaveIfError( iFields.Append( item ) ); |
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181 CleanupStack::Pop(); |
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182 } |
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183 |
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184 // ----------------------------------------------------------------------------- |
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185 // CMetaDataFieldContainer::At |
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186 // ----------------------------------------------------------------------------- |
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187 // |
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188 EXPORT_C TPtrC CMetaDataFieldContainer::At( |
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189 TInt aPosition, |
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190 TMetaDataFieldId& aFieldId ) const |
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191 { |
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192 TInt count( iFields.Count() ); |
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193 if ( count == 0 ) |
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194 { |
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195 return KNullDesC(); |
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196 } |
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197 |
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198 if ( aPosition < 0 || aPosition > count ) |
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199 { |
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200 return KNullDesC(); |
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201 } |
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202 |
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203 aFieldId = iFields[aPosition]->Id(); |
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204 if(aFieldId == EMetaDataJpeg) |
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205 { |
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206 TPtrC8 pic = iFields[aPosition]->Data8(); |
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207 TInt length = pic.Length(); |
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208 if( length ) |
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209 { |
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210 if(iD16) |
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211 { |
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212 delete iD16; |
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213 iD16 = NULL; |
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214 } |
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215 TRAPD(err, iD16 = HBufC::NewL(length)); |
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216 if(err != KErrNone) |
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217 { |
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218 return KNullDesC(); |
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219 } |
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220 i16BitAlbumArt = ETrue; |
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221 TPtr unicode( iD16->Des() ); |
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222 unicode.Copy( pic ); |
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223 return unicode; |
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224 } |
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225 } |
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226 return iFields[aPosition]->Data(); |
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227 } |
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228 |
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229 // ----------------------------------------------------------------------------- |
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230 // CMetaDataFieldContainer::FieldIdAt |
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231 // ----------------------------------------------------------------------------- |
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232 // |
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233 EXPORT_C void CMetaDataFieldContainer::FieldIdAt( |
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234 TInt aPosition, |
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235 TMetaDataFieldId& aFieldId ) const |
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236 { |
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237 TInt count( iFields.Count()); |
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238 if (count == 0 ) |
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239 { |
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240 aFieldId = EUnknownMetaDataField; |
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241 } |
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242 if ( aPosition < 0 || aPosition > count ) |
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243 { |
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244 aFieldId = EUnknownMetaDataField; |
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245 } |
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246 else |
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247 { |
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248 aFieldId = iFields[aPosition]->Id(); |
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249 } |
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250 } |
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251 // End of File |