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1 /* |
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2 * Copyright (c) 2002 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: |
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15 * class for imps key. |
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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 // INCLUDE FILES |
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21 #include <e32base.h> |
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22 #include "impskey.h" |
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23 #include "impserrors.h" |
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24 #include "impsconst.h" |
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25 |
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26 #ifdef _DEBUG |
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27 #include <f32file.h> |
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28 #endif |
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29 |
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30 // CONSTANTS |
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31 const TInt KDefaultKeySize = 20; |
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32 const TInt KAddRoom = 20; |
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33 |
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34 // ================= MEMBER FUNCTIONS ======================= |
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35 |
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36 // C++ default constructor can NOT contain any code, that |
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37 // might leave. |
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38 // |
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39 CImpsKey::CImpsKey() : |
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40 iBuffer(NULL), |
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41 iCount(0) |
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42 { |
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43 } |
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44 |
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45 // Symbian OS default constructor can leave. |
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46 void CImpsKey::ConstructL( ) |
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47 { |
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48 iBuffer = HBufC16::NewL( KDefaultKeySize ); // Insert room for the elements |
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49 } |
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50 |
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51 // Two-phased constructor. |
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52 EXPORT_C CImpsKey* CImpsKey::NewL( ) |
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53 { |
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54 CImpsKey* self = new (ELeave) CImpsKey; |
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55 CleanupStack::PushL( self ); |
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56 self->ConstructL( ); |
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57 CleanupStack::Pop( ); |
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58 return self; |
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59 } |
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60 |
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61 // Two-phased constructor. |
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62 EXPORT_C CImpsKey* CImpsKey::NewLC( ) |
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63 { |
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64 CImpsKey* self = new (ELeave) CImpsKey; |
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65 CleanupStack::PushL( self ); |
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66 self->ConstructL( ); |
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67 return self; |
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68 } |
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69 |
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70 |
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71 // Destructor |
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72 EXPORT_C CImpsKey::~CImpsKey() |
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73 { |
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74 delete iBuffer; |
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75 } |
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76 |
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77 |
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78 // --------------------------------------------------------- |
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79 // CImpsKey::AddL |
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80 // Adds new element value the key |
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81 // --------------------------------------------------------- |
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82 // |
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83 void CImpsKey::AddL( |
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84 const TInt aElemvalue , |
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85 enum TImpsKeyType aKeyType) |
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86 { |
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87 if( iBuffer->Length( ) + 2 > iBuffer->Des().MaxLength() ) |
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88 { |
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89 iBuffer = iBuffer->ReAllocL( iBuffer->Length( ) + KAddRoom ); // Insert room |
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90 } |
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91 TPtr16 buffer = iBuffer->Des(); |
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92 buffer.AppendFill( 0,2 ); |
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93 TUint16 val = STATIC_CAST(TUint16,GET_INDEX(aElemvalue)); |
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94 if(aKeyType == EImpsKeyTypeIM) |
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95 val &= 0x7FFF; // High bit is zero |
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96 else |
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97 val |= 0x8000; // High bit is one |
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98 buffer[iCount*2] = val; // Index value |
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99 buffer[iCount*2+1] = STATIC_CAST(TUint16,GET_ENUM(aElemvalue)); // Enum value |
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100 iCount++; |
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101 } |
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102 |
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103 // --------------------------------------------------------- |
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104 // CImpsKey::PopL |
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105 // Remove the last item from the key |
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106 // --------------------------------------------------------- |
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107 // |
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108 void CImpsKey::PopL( TInt aCount ) |
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109 { |
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110 if( iCount - aCount < 0 ) |
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111 User::Leave( KImpsErrorKeyEmpty ); |
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112 TPtr16 buffer = iBuffer->Des( ); |
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113 TInt size = buffer.Length( ); |
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114 buffer.SetLength( size - 2*aCount ); |
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115 iCount -= aCount; |
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116 } |
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117 |
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118 // --------------------------------------------------------- |
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119 // CImpsKey::GetElementL |
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120 // Remove the last item from the key |
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121 // --------------------------------------------------------- |
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122 // |
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123 TInt CImpsKey::GetElementL( |
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124 const TInt aIndex, TImpsKeyType& aKeyType ) const |
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125 { |
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126 if( aIndex < 0 ) |
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127 User::Leave( KImpsErrorKeyIndexInvalid ); |
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128 if( iCount == 0 ) |
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129 User::Leave( KImpsErrorKeyEmpty ); |
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130 if( aIndex>=iCount ) |
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131 User::Leave( KImpsErrorKeyIndexTooLarge ); |
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132 TInt highval = (*iBuffer)[aIndex*2]; |
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133 if( IS_PRESENCE( highval*0x10000 ) ) |
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134 aKeyType = EImpsKeyTypePre; |
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135 else |
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136 aKeyType = EImpsKeyTypeIM; |
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137 highval &= 0x7FFF; // Leave out the high bit |
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138 TInt ret = STATIC_CAST( TInt, highval * 0x10000 + (*iBuffer)[aIndex*2+1] ); |
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139 return ret; |
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140 } |
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141 |
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142 // --------------------------------------------------------- |
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143 // CImpsKey::ReplaceLastL |
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144 // Replace last with new key |
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145 // --------------------------------------------------------- |
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146 // |
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147 void CImpsKey::ReplaceLastL( |
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148 const TInt aElemvalue, |
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149 enum TImpsKeyType aKeyType ) |
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150 { |
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151 PopL( ); |
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152 AddL( aElemvalue, aKeyType ); |
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153 } |
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154 |
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155 // --------------------------------------------------------- |
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156 // CImpsKey::Reset |
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157 // Reset to empty key |
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158 // --------------------------------------------------------- |
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159 // |
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160 void CImpsKey::Reset() |
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161 { |
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162 TPtr16 buffer = iBuffer->Des( ); |
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163 buffer.SetLength( 0 ); |
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164 iCount = 0; |
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165 } |
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166 |
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167 // --------------------------------------------------------- |
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168 // CImpsKey::Compare |
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169 // --------------------------------------------------------- |
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170 // |
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171 TInt CImpsKey::Compare( MImpsKey& aKey ) |
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172 { |
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173 CImpsKey& alien = (CImpsKey&)aKey; |
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174 return (*this==alien); |
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175 } |
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176 |
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177 // --------------------------------------------------------- |
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178 // CImpsKey::Copy |
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179 // Copy the key |
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180 // --------------------------------------------------------- |
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181 // |
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182 CImpsKey* CImpsKey::CopyL( ) const |
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183 { |
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184 CImpsKey* newKey = new (ELeave) CImpsKey; |
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185 CleanupStack::PushL( newKey ); |
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186 HBufC16* newString = iBuffer->AllocL( ); |
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187 newKey->iBuffer = newString; |
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188 newKey->iCount = iCount; |
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189 CleanupStack::Pop( ); |
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190 return newKey; |
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191 } |
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192 |
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193 // --------------------------------------------------------- |
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194 // CImpsKey::CheckKey |
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195 // --------------------------------------------------------- |
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196 // |
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197 TBool CImpsKey::CheckKey( |
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198 const CImpsKey *aKey, |
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199 TImpsKeyOptions aOptions ) const |
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200 { |
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201 // Find the string from the buffer |
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202 // if the string is not found return EFalse |
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203 TInt index = iBuffer->Find( aKey->iBuffer->Des() ); |
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204 if(index == KErrNotFound ) |
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205 return EFalse; |
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206 |
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207 // If aOptions is PARTIALKEY and index is 0 we know that the |
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208 // key matched to the start of the key. |
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209 // If aOptionms is PARTIALKEYLONGER we want the key to little bit more |
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210 // than just the plain key. The key is not wholekey |
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211 // If aOptions is EWholeKey and the index is 0 and also the |
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212 // lengths must be the same then we have macthed whole key |
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213 switch ( aOptions ) |
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214 { |
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215 case EPartialKey: |
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216 if( index==0 ) |
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217 return ETrue; |
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218 break; |
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219 case EPartialKeyLonger: |
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220 if( index==0 && aKey->Count( ) < Count( )) |
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221 return ETrue; |
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222 break; |
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223 |
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224 case EWholeKey: |
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225 if( index == 0 && aKey->Count( ) == Count( ) ) |
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226 return ETrue; |
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227 break; |
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228 default: |
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229 break; |
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230 } |
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231 return EFalse; |
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232 } |
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233 |
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234 // --------------------------------------------------------- |
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235 // CImpsKey::Size |
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236 // Size of the key |
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237 // --------------------------------------------------------- |
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238 // |
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239 TInt CImpsKey::Size( ) const |
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240 { |
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241 TInt size = sizeof (TInt); // iCount |
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242 size += iBuffer->Size( ); |
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243 return size; |
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244 } |
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245 |
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246 // --------------------------------------------------------- |
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247 // CImpsKey::Pack |
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248 // Pack the key |
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249 // --------------------------------------------------------- |
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250 // |
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251 TInt CImpsKey::Pack( |
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252 const TUint8*& aPtrStart ) const |
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253 { |
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254 Mem::Copy( (void*)aPtrStart, &iCount, sizeof( iCount ) ); |
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255 aPtrStart = aPtrStart + sizeof( iCount ); |
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256 |
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257 if( iCount ) |
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258 { |
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259 // TInt32 tempSize = 0; |
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260 /* |
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261 tempSize = iBuffer->Size(); |
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262 Mem::Copy( (void*)aPtrStart, &tempSize, sizeof( tempSize) ); |
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263 aPtrStart = aPtrStart + sizeof( tempSize ); |
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264 if ( iCount ) |
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265 { |
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266 Mem::Copy( (void*)aPtrStart, iBuffer->Ptr(), tempSize); |
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267 aPtrStart = aPtrStart + tempSize ; |
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268 } |
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269 */ |
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270 // tempSize = iBuffer->Size(); |
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271 // Mem::Copy( (void*)aPtrStart, &tempSize, sizeof( tempSize) ); |
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272 // aPtrStart = aPtrStart + sizeof( tempSize ); |
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273 if ( iCount ) |
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274 { |
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275 Mem::Copy( (void*)aPtrStart, iBuffer->Ptr(), iCount*4); |
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276 aPtrStart = aPtrStart + iCount*4 ; |
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277 } |
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278 } |
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279 return KErrNone; |
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280 } |
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281 |
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282 // --------------------------------------------------------- |
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283 // CImpsKey::UnPackL |
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284 // Pack the key |
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285 // --------------------------------------------------------- |
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286 // |
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287 void CImpsKey::UnPackL( |
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288 TUint8*& aPtr ) |
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289 { |
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290 Mem::Copy( &iCount, aPtr, sizeof( iCount ) ); |
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291 aPtr += sizeof( iCount ); |
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292 if( iCount ) |
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293 { |
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294 const TUint8* textPtr = aPtr; |
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295 // TInt32 tempSize = 0; |
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296 |
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297 /* |
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298 Mem::Copy( &tempSize, textPtr, sizeof( tempSize) ); |
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299 textPtr = textPtr + sizeof( tempSize ); |
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300 if ( iCount > 0 ) |
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301 { |
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302 delete iBuffer; |
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303 iBuffer = NULL; |
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304 iBuffer = HBufC16::NewL( tempSize ); |
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305 Mem::Copy( (void*)iBuffer->Ptr(), textPtr, tempSize ); |
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306 iBuffer->Des().SetLength( tempSize ); |
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307 textPtr = textPtr + tempSize; |
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308 */ |
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309 // Mem::Copy( &tempSize, textPtr, sizeof( tempSize) ); |
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310 // textPtr = textPtr + sizeof( tempSize ); |
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311 if ( iCount > 0 ) |
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312 { |
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313 delete iBuffer; |
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314 iBuffer = NULL; |
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315 iBuffer = HBufC16::NewL( iCount*2 ); |
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316 Mem::Copy( (void*)iBuffer->Ptr(), textPtr, iCount*4 ); |
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317 iBuffer->Des().SetLength( iCount*2 ); |
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318 textPtr = textPtr + iCount*4; |
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319 } |
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320 if ( iCount < 0 ) |
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321 { |
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322 User::Leave( KErrCorrupt ); |
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323 } |
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324 aPtr = (TUint8*) textPtr; |
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325 } |
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326 } |
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327 |
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328 |
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329 // --------------------------------------------------------- |
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330 // CImpsKey::Destroy |
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331 // Destroy the key |
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332 // --------------------------------------------------------- |
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333 // |
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334 void CImpsKey::Destroy() |
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335 { |
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336 delete this; |
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337 } |
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338 |
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339 #ifdef _DEBUG |
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340 |
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341 // --------------------------------------------------------- |
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342 // CImpsKey::DumpToFileL |
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343 // --------------------------------------------------------- |
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344 // |
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345 void CImpsKey::DumpToFileL( RFile& aFile ) const |
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346 { |
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347 _LIT8( KImpsKeyDumpBegin, " ImpsKey dump begin\r\n"); |
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348 aFile.Write( KImpsKeyDumpBegin ); |
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349 |
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350 TInt count = iCount; |
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351 TBuf8<256> message; |
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352 _LIT8(KCount," Impskey number of elements = %d\r\n"); |
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353 _LIT8(KElement," Impskey element %d\r\n"); |
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354 _LIT8(KElementIndex," Impskey element index %d\r\n"); |
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355 _LIT8(KElementEnum," Impskey element enum %x\r\n"); |
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356 |
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357 message.Format( KCount, count ); |
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358 aFile.Write( message ); |
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359 |
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360 |
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361 for( TInt k = 0; k< count; k++ ) |
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362 { |
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363 TImpsKeyType keyType; |
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364 TInt elem = GetElementL( k, keyType ); |
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365 message.Format( KElement, k ); |
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366 aFile.Write( message ); |
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367 if( keyType == EImpsKeyTypeIM ) |
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368 { |
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369 _LIT8( KImpsKeyTypeIM, " ImpsKey type = EImpsKeyTypeIM\r\n"); |
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370 aFile.Write( KImpsKeyTypeIM ); |
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371 } |
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372 else |
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373 { |
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374 _LIT8( KImpsKeyTypePresence, " ImpsKey type = EImpsKeyTypePre\r\n"); |
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375 aFile.Write( KImpsKeyTypePresence ); |
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376 } |
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377 message.Format( KElementIndex, GET_INDEX(elem) ); |
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378 aFile.Write( message ); |
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379 message.Format( KElementEnum, GET_ENUM(elem) ); |
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380 aFile.Write( message ); |
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381 } |
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382 |
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383 _LIT8( KImpsKeyDumpEnd, " ImpsKey dump end\r\n"); |
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384 aFile.Write( KImpsKeyDumpEnd ); |
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385 } |
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386 #endif |
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387 |
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388 // --------------------------------------------------------- |
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389 // CImpsKey::SetElementIndex |
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390 // --------------------------------------------------------- |
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391 // |
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392 void CImpsKey::SetElementIndex( TInt aCount, TInt aNewIndex ) |
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393 { |
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394 if( iCount == 0 ) |
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395 return; |
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396 if( aCount < 0 ) |
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397 return; |
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398 if( aCount >= iCount ) |
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399 return; |
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400 TInt highval = (*iBuffer)[aCount*2]; |
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401 TUint16 val = STATIC_CAST(TUint16,aNewIndex ); |
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402 if( IS_PRESENCE( highval*0x10000 ) ) |
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403 val |= 0x8000; |
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404 else |
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405 val &= 0x7FFF; |
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406 TPtr16 buffer = iBuffer->Des(); |
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407 buffer[aCount*2] = val; // Index value |
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408 } |
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409 |
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410 // End of File |
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411 |