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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 |
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17 |
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18 // INCLUDE FILES |
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19 #include "HWRMFmTxRdsTextConverter.h" |
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20 #include "HWRMPolicy.h" |
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21 #include "HWRMtrace.h" |
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22 |
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23 // CONSTANTS |
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24 _LIT( KConvertFromUnicodeFileName, "ConvertFromUnicode.dat" ); |
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25 |
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26 const TUint8 KUnmappedRdsChar = 0xFF; |
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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 // CHWRMFmTxRdsTextConverter::CHWRMFmTxRdsTextConverter |
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32 // C++ constructor |
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33 // ----------------------------------------------------------------------------- |
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34 // |
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35 CHWRMFmTxRdsTextConverter::CHWRMFmTxRdsTextConverter() |
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36 { |
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37 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::CHWRMFmTxRdsTextConverter()" ) ); |
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38 } |
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39 |
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40 // ----------------------------------------------------------------------------- |
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41 // CHWRMFmTxRdsTextConverter::ConstructL |
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42 // Symbian 2nd phase constructor can leave. |
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43 // ----------------------------------------------------------------------------- |
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44 // |
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45 void CHWRMFmTxRdsTextConverter::ConstructL() |
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46 { |
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47 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConstructL()" ) ); |
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48 |
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49 // Open conversion table file |
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50 User::LeaveIfError( iFileServer.Connect() ); |
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51 |
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52 TFileName conversionTableFilename; |
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53 User::LeaveIfError( iFileServer.PrivatePath( conversionTableFilename ) ); // Private-folder of HWRM |
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54 conversionTableFilename.Insert(0, KDrivename); // "Z:" |
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55 conversionTableFilename.Append( KConvertFromUnicodeFileName ); // Actual filename |
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56 |
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57 COMPONENT_TRACE2( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConstructL(), RFile::Open(%S)" ), &conversionTableFilename ); |
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58 User::LeaveIfError( iConvertFromUnicodeFile.Open( iFileServer, conversionTableFilename, EFileRead) ); |
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59 |
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60 // Read from conversion table file |
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61 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConstructL() RFile::Read" ) ); |
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62 User::LeaveIfError( iConvertFromUnicodeFile.Read(iConvertFromUnicodeTable) ); |
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63 |
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64 if ( iConvertFromUnicodeTable.Length() != KConvertFromTableLength ) |
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65 { |
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66 COMPONENT_TRACE2( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConstructL - invalid table length %d "), iConvertFromUnicodeTable.Length() ); |
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67 User::Leave( KErrNotReady ); |
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68 } |
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69 |
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70 // Default value. Should be overwritten with CenRep setting |
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71 SetUnsupportedCharReplacement( 0x3F /* Question Mark ? symbol */ ); |
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72 |
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73 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConstructL - return " ) ); |
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74 } |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // CHWRMFmTxRdsTextConverter::NewL |
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78 // Two-phased constructor. |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 CHWRMFmTxRdsTextConverter* CHWRMFmTxRdsTextConverter::NewL() |
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82 { |
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83 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::NewL()" ) ); |
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84 |
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85 CHWRMFmTxRdsTextConverter* self = new( ELeave ) CHWRMFmTxRdsTextConverter(); |
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86 |
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87 CleanupStack::PushL( self ); |
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88 self->ConstructL(); |
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89 CleanupStack::Pop( self ); |
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90 |
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91 COMPONENT_TRACE2( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::NewL - return 0x%x" ), self ); |
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92 |
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93 return self; |
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94 } |
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95 |
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96 // --------------------------------------------------------- |
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97 // Destructor |
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98 // --------------------------------------------------------- |
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99 // |
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100 CHWRMFmTxRdsTextConverter::~CHWRMFmTxRdsTextConverter() |
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101 { |
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102 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::~CHWRMFmTxRdsTextConverter()" ) ); |
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103 |
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104 iFileServer.Close(); |
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105 |
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106 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::~CHWRMFmTxRdsTextConverter - return" ) ); |
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107 } |
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108 |
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109 // --------------------------------------------------------- |
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110 // CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL |
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111 // Converts a unicode descriptor into 8bit RDS format |
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112 // All input characters must be within U+0000 -> U+024F range |
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113 // --------------------------------------------------------- |
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114 // |
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115 void CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL(const TDesC& aInput, TDes8& aOutput) |
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116 { |
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117 COMPONENT_TRACE2( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL(%S)" ), &aInput ); |
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118 |
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119 // empty output buffer |
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120 aOutput.Zero(); |
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121 |
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122 TInt inputLength = aInput.Length(); |
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123 // convert each character from input buffer |
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124 for (TInt inputIndex=0; inputIndex < inputLength; inputIndex++) |
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125 { |
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126 // get input buffer values to index conversion table |
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127 TUint tableIndex = aInput[inputIndex]; |
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128 COMPONENT_TRACE3( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL aInput[%d] = 0x%x" ), inputIndex, tableIndex ); |
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129 if ( tableIndex >= KConvertFromTableLength ) |
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130 { |
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131 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL() aInput outside valid range" ) ); |
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132 aOutput.Zero(); |
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133 User::Leave(KErrArgument); |
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134 } |
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135 |
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136 // convert into 8bit RDS value |
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137 TUint8 value = iConvertFromUnicodeTable[ tableIndex ]; |
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138 if ( SupportedCharacter(value) == EFalse ) |
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139 { |
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140 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL() using replacement char" ) ); |
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141 value = iUnsupportedCharReplacement; |
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142 } |
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143 |
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144 COMPONENT_TRACE2( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL() appending 0x%x" ), value ); |
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145 aOutput.Append( (TChar)value ); |
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146 } |
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147 |
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148 COMPONENT_TRACE1( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::ConvertFromUnicodeL - return" ) ); |
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149 } |
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150 |
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151 // --------------------------------------------------------- |
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152 // CHWRMFmTxRdsTextConverter::SetUnsupportedCharReplacement |
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153 // Sets the character used, to replace unsupported characters |
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154 // --------------------------------------------------------- |
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155 // |
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156 void CHWRMFmTxRdsTextConverter::SetUnsupportedCharReplacement(const TText8 aChar) |
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157 { |
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158 COMPONENT_TRACE2( _L( "HWRM Server - CHWRMFmTxRdsTextConverter::SetUnsupportedCharReplacement(0x%x)" ), aChar ); |
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159 |
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160 iUnsupportedCharReplacement = aChar; |
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161 } |
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162 |
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163 // --------------------------------------------------------- |
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164 // CHWRMFmTxRdsTextConverter::SupportedCharacter |
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165 // Returns whether a character returned by the conversion |
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166 // table is actually supported |
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167 // --------------------------------------------------------- |
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168 // |
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169 TBool CHWRMFmTxRdsTextConverter::SupportedCharacter( TUint8 aChar ) |
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170 { |
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171 return (aChar < KUnmappedRdsChar); |
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172 } |
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173 |
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174 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
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175 |
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176 // End of File |