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1 /* |
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2 * Copyright (c) 2006 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: Component ID block lists implementation. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "tvtuiblocklists.h" |
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20 |
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21 const static TUint KNullBlockMask = 0; |
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22 |
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23 // Implementation for TVtUiBlockList |
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24 |
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25 // ----------------------------------------------------------------------------- |
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26 // TVtUiBlockList::~TVtUiBlockList |
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27 // ----------------------------------------------------------------------------- |
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28 // |
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29 TVtUiBlockList::~TVtUiBlockList() |
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30 { |
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31 } |
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32 |
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33 // ----------------------------------------------------------------------------- |
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34 // TVtUiBlockList::TVtUiBlockList |
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35 // ----------------------------------------------------------------------------- |
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36 // |
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37 TVtUiBlockList::TVtUiBlockList() |
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38 { |
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39 } |
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40 |
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41 // Implementation for TVtUiBlockListBitField |
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42 |
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43 // ----------------------------------------------------------------------------- |
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44 // TVtUiBlockListBitField::TVtUiBlockListBitField |
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45 // ----------------------------------------------------------------------------- |
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46 // |
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47 TVtUiBlockListBitField::TVtUiBlockListBitField() : iBlockMask( KNullBlockMask ) |
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48 { |
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49 } |
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50 |
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51 // ----------------------------------------------------------------------------- |
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52 // TVtUiBlockListBitField::TVtUiBlockListBitField |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 TVtUiBlockListBitField::TVtUiBlockListBitField( TUint aBlockMask ) |
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56 : iBlockMask( aBlockMask ) |
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57 { |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 // TVtUiBlockListBitField::IsEmpty |
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62 // ----------------------------------------------------------------------------- |
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63 // |
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64 TBool TVtUiBlockListBitField::IsEmpty() const |
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65 { |
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66 return !iBlockMask; |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // TVtUiBlockListBitField::Contains |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 TBool TVtUiBlockListBitField::Contains( MVtUiComponent::TComponentId aId ) const |
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74 { |
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75 return ( iBlockMask & aId ) && ( aId != MVtUiComponent::EComponentIdNull ); |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // TVtUiBlockListBitField::Union |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 void TVtUiBlockListBitField::Union( const TVtUiBlockList& aBlockList ) |
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83 { |
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84 iBlockMask |= |
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85 static_cast< const TVtUiBlockListBitField& >( aBlockList ).iBlockMask; |
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86 } |
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87 |
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88 // ----------------------------------------------------------------------------- |
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89 // TVtUiBlockListBitField::IteratorLC |
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90 // ----------------------------------------------------------------------------- |
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91 // |
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92 CVtUiBlockListIterator* TVtUiBlockListBitField::IteratorLC() const |
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93 { |
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94 return TVtUiBlockListBitField::CVtUiBListIteratorBF::NewLC( iBlockMask ); |
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95 } |
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96 |
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97 // Implementation for TVtUiBlockListBitField::CVtUiBListIteratorBF |
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98 |
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99 // ----------------------------------------------------------------------------- |
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100 // TVtUiBlockListBitField::CVtUiBListIteratorBF::NewLC |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 TVtUiBlockListBitField::CVtUiBListIteratorBF* |
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104 TVtUiBlockListBitField::CVtUiBListIteratorBF::NewLC( |
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105 const TUint& aBlockMask ) |
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106 { |
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107 CVtUiBListIteratorBF* self = new ( ELeave ) |
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108 CVtUiBListIteratorBF( aBlockMask ); |
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109 CleanupStack::PushL( self ); |
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110 return self; |
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111 } |
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112 |
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113 // ----------------------------------------------------------------------------- |
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114 // TVtUiBlockListBitField::CVtUiBListIteratorBF::CVtUiBListIteratorBF |
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115 // ----------------------------------------------------------------------------- |
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116 // |
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117 TVtUiBlockListBitField::CVtUiBListIteratorBF::CVtUiBListIteratorBF( |
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118 const TUint& aBlockMask ) : iBlockMask( aBlockMask ), iCurrent( 1 ) |
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119 { |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // TVtUiBlockListBitField::CVtUiBListIteratorBF::HasNext |
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124 // ----------------------------------------------------------------------------- |
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125 // |
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126 TBool TVtUiBlockListBitField::CVtUiBListIteratorBF::HasNext() const |
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127 { |
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128 return ( iCurrent && ( iCurrent <= iBlockMask ) ); |
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129 } |
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130 |
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131 // ----------------------------------------------------------------------------- |
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132 // TVtUiBlockListBitField::CVtUiBListIteratorBF::Next |
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133 // ----------------------------------------------------------------------------- |
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134 // |
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135 MVtUiComponent::TComponentId |
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136 TVtUiBlockListBitField::CVtUiBListIteratorBF::Next() |
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137 { |
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138 MVtUiComponent::TComponentId id( MVtUiComponent::EComponentIdNull ); |
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139 |
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140 while ( HasNext() && !( iCurrent & iBlockMask ) ) |
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141 { |
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142 iCurrent <<= 1; |
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143 } |
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144 |
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145 if ( iCurrent ) |
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146 { |
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147 id = static_cast< MVtUiComponent::TComponentId >( iCurrent ); |
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148 } |
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149 |
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150 iCurrent <<= 1; |
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151 |
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152 return id; |
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153 } |