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1 /* |
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2 * Copyright (c) 2009 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 * |
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16 */ |
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17 |
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18 // INCLUDE FILES |
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19 |
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20 #include "menuengflags.h" |
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21 #include "mcsmenuitem.h" |
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22 |
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23 // CLASS DECLARATION |
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24 |
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25 NONSHARABLE_STRUCT( TMenuFlagEntry ) |
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26 { |
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27 TUint32 iFlag; // Flag bit value (one bit only). |
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28 const TText* iString; // Flag string name. |
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29 }; |
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30 |
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31 // CONSTANTS |
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32 |
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33 /// Flag name table. Concatenated names (with spaces between) should fit into |
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34 // KMenuMaxAttrValueLen! |
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35 LOCAL_D const TMenuFlagEntry KTable[] = |
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36 { |
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37 { TMenuItem::ELockDelete, _S("lock_delete") }, |
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38 { TMenuItem::ELockName, _S("lock_name") }, |
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39 { TMenuItem::ELockIcon, _S("lock_icon") }, |
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40 { TMenuItem::ELockMoveInto, _S("lock_moveinto") }, |
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41 { TMenuItem::ELockItem, _S("lock_item") }, |
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42 { TMenuItem::EHidden, _S("hidden") }, |
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43 { TMenuItem::EMissing, _S("missing") }, |
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44 { 0 } |
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45 }; |
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46 |
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47 // ================= MEMBER FUNCTIONS ======================= |
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48 |
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49 // --------------------------------------------------------- |
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50 // MenuEngFlags::AsInt |
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51 // --------------------------------------------------------- |
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52 // |
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53 TUint32 MenuEngFlags::AsInt( const TDesC& aStringValue ) |
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54 { |
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55 TUint32 flags = 0; |
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56 TLex lex( aStringValue ); |
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57 TPtrC token( lex.NextToken() ); |
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58 while ( token.Length() ) |
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59 { |
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60 flags |= FlagValue( token ); |
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61 token.Set( lex.NextToken() ); |
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62 } |
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63 return flags; |
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64 } |
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65 |
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66 // --------------------------------------------------------- |
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67 // MenuEngFlags::AsString |
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68 // --------------------------------------------------------- |
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69 // |
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70 void MenuEngFlags::AsString( TUint32 aIntValue, TDes& aStringValue ) |
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71 { |
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72 // Note, we assume that the result fits in aStringValue. |
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73 // It is expected to be of length KMenuMaxAttrValueLen. |
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74 // If new flags are added, we should check that their concatenated |
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75 // names (with spaces between) still fit in one attribute. If not, |
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76 // then we should use more than one "flags" attribute; but this is |
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77 // easy to avoid if flag names are kept short. (32 flags should normally |
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78 // fit in 512 characters!) |
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79 __ASSERT_DEBUG( aStringValue.MaxLength() >= KMenuMaxAttrValueLen, \ |
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80 User::Invariant() ); |
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81 aStringValue.SetLength( 0 ); |
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82 TUint32 mask; |
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83 TPtrC ptr; |
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84 TBool leadingSpace = EFalse; |
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85 for ( mask = 0x1; mask; mask = mask << 1 ) |
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86 { |
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87 ptr.Set( StringValue( mask & aIntValue ) ); |
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88 if ( ptr.Length() ) |
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89 { |
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90 if ( leadingSpace ) |
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91 { |
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92 aStringValue.Append( TChar(' ') ); |
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93 } |
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94 aStringValue.Append( ptr ); |
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95 leadingSpace = ETrue; // Need a leading space from the 2nd onwards. |
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96 } |
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97 } |
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98 } |
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99 |
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100 // --------------------------------------------------------- |
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101 // MenuEngFlags::FlagValue |
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102 // --------------------------------------------------------- |
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103 // |
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104 TUint32 MenuEngFlags::FlagValue( const TDesC& aString ) |
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105 { |
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106 // Note: This could be optimized |
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107 const TMenuFlagEntry* entry; |
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108 for ( entry = &KTable[0]; entry->iFlag; entry++ ) |
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109 { |
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110 if ( aString == TPtrC( entry->iString ) ) |
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111 { |
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112 return entry->iFlag; |
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113 } |
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114 } |
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115 return 0; |
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116 } |
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117 |
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118 // --------------------------------------------------------- |
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119 // MenuEngFlags::StringValue |
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120 // --------------------------------------------------------- |
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121 // |
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122 TPtrC MenuEngFlags::StringValue( TUint32 aFlag ) |
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123 { |
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124 // It is expected that aFlag has exactly one bit set -> first |
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125 // match is accepted. |
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126 const TMenuFlagEntry* entry; |
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127 for ( entry = &KTable[0]; entry->iFlag; entry++ ) |
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128 { |
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129 if ( aFlag & entry->iFlag ) |
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130 { |
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131 return TPtrC( entry->iString ); |
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132 } |
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133 } |
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134 return KNullDesC(); |
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135 } |
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136 |
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137 // ================= MEMBER FUNCTIONS ======================= |
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138 |
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139 // --------------------------------------------------------- |
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140 // MenuEngId::AsInt |
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141 // --------------------------------------------------------- |
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142 // |
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143 TInt MenuEngId::AsInt( const TDesC& aStringValue ) |
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144 { |
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145 TInt position( aStringValue.Find(KHexPrefix) ); |
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146 TPtrC string( aStringValue ); |
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147 TRadix radix( EDecimal ); |
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148 if ( position == 0 ) |
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149 { |
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150 // is hex |
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151 radix = EHex; |
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152 string.Set( aStringValue.Mid( KHexPrefix().Length() ) ); |
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153 } |
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154 |
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155 TUint id = 0; |
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156 if ( KErrNone != TLex( string ).Val( id, radix ) ) |
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157 { |
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158 return 0; |
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159 } |
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160 return id; |
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161 } |
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162 |
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163 // --------------------------------------------------------- |
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164 // MenuEngId::AsString |
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165 // --------------------------------------------------------- |
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166 // |
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167 void MenuEngId::AsString( TInt aIntValue, TDes& aStringValue ) |
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168 { |
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169 // Note, we assume that the result fits in aStringValue. |
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170 // It is expected to be of length KMenuMaxAttrValueLen. |
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171 __ASSERT_DEBUG( aStringValue.MaxLength() >= KMenuMaxAttrValueLen, \ |
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172 User::Invariant() ); |
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173 aStringValue.SetLength( 0 ); |
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174 aStringValue.AppendNum( aIntValue ); |
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175 } |
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176 |
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177 // End of File |