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1 /* |
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2 * Copyright (c) 2006, 2007 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: Implementation for CAknTreeLeaf class. |
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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 "akntreeleaf.h" |
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20 |
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21 const TUint KDefaultLeafFlags = NULL; |
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22 |
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23 |
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24 // ======== MEMBER FUNCTIONS ======== |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // Destructor. |
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28 // --------------------------------------------------------------------------- |
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29 // |
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30 CAknTreeLeaf::~CAknTreeLeaf() |
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31 { |
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32 } |
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33 |
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34 |
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35 // --------------------------------------------------------------------------- |
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36 // From class CAknTreeItem. |
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37 // --------------------------------------------------------------------------- |
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38 // |
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39 CAknTreeLeaf* CAknTreeLeaf::Leaf() |
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40 { |
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41 return this; |
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42 } |
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43 |
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44 |
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45 const CAknTreeLeaf* CAknTreeLeaf::Leaf() const |
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46 { |
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47 return this; |
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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 // From class CAknTreeItem. |
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53 // Checks whether the leaf is set marked. |
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54 // --------------------------------------------------------------------------- |
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55 // |
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56 TBool CAknTreeLeaf::IsMarked() const |
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57 { |
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58 return ( iFlags & EMarked ) ? ETrue : EFalse; |
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59 } |
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60 |
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61 |
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62 // --------------------------------------------------------------------------- |
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63 // From class CAknTreeItem. |
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64 // Changes the state of the marked flag, if marking change is not disabled. |
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65 // --------------------------------------------------------------------------- |
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66 // |
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67 void CAknTreeLeaf::SetMarked( TBool aMarked ) |
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68 { |
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69 if ( !( iFlags & EMarkingDisabled ) ) |
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70 { |
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71 if ( aMarked ) |
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72 { |
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73 iFlags |= EMarked; |
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74 } |
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75 else |
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76 { |
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77 iFlags &= ~EMarked; |
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78 } |
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79 } |
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80 } |
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81 |
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82 |
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83 // --------------------------------------------------------------------------- |
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84 // From class CAknTreeItem. |
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85 // Checks whether marking is enabled. |
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86 // --------------------------------------------------------------------------- |
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87 // |
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88 TBool CAknTreeLeaf::IsMarkable() const |
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89 { |
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90 return ( iFlags & EMarkingDisabled ) ? EFalse : ETrue; |
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91 } |
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92 |
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93 |
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94 // --------------------------------------------------------------------------- |
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95 // From class CAknTreeItem. |
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96 // Changes the state of the marking enabled flag. |
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97 // --------------------------------------------------------------------------- |
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98 // |
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99 void CAknTreeLeaf::SetMarkable( TBool aMarkable ) |
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100 { |
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101 if ( aMarkable ) |
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102 { |
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103 iFlags &= ~EMarkingDisabled; |
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104 } |
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105 else |
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106 { |
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107 iFlags |= EMarkingDisabled; |
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108 } |
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109 } |
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110 |
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111 |
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112 // --------------------------------------------------------------------------- |
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113 // From class CAknTreeItem. |
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114 // Checks whether the leaf is set persistent. |
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115 // --------------------------------------------------------------------------- |
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116 // |
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117 TBool CAknTreeLeaf::IsPersistent() const |
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118 { |
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119 return ( iFlags & EPersistent ) ? ETrue : EFalse; |
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120 } |
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121 |
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122 |
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123 // --------------------------------------------------------------------------- |
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124 // From class CAknTreeItem. |
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125 // Changes the state of the persistent flag. |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 void CAknTreeLeaf::SetPersistent( TBool aPersistent ) |
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129 { |
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130 if ( aPersistent ) |
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131 { |
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132 iFlags |= EPersistent; |
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133 } |
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134 else |
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135 { |
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136 iFlags &= ~EPersistent; |
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137 } |
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138 } |
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139 |
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140 |
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141 // --------------------------------------------------------------------------- |
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142 // From class CAknTreeItem. |
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143 // Implementation for pure virtual function returns always false, as a leaf |
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144 // can not have any descendants. |
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145 // --------------------------------------------------------------------------- |
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146 // |
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147 TBool CAknTreeLeaf::HasPersistentDescendants() const |
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148 { |
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149 return EFalse; |
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150 } |
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151 |
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152 |
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153 // --------------------------------------------------------------------------- |
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154 // From class CAknTreeItem. |
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155 // Checks whether the item can be removed from the tree when its parent node |
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156 // is being collapsed. |
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157 // --------------------------------------------------------------------------- |
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158 // |
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159 TBool CAknTreeLeaf::IsRemovableFromCollapsedNode() const |
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160 { |
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161 return !( IsMarked() || IsPersistent() ); |
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162 } |
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163 |
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164 |
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165 // --------------------------------------------------------------------------- |
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166 // Default C++ constructor. |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 CAknTreeLeaf::CAknTreeLeaf() |
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170 : iFlags( KDefaultLeafFlags ) |
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171 { |
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172 } |
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173 |
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174 |
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175 // --------------------------------------------------------------------------- |
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176 // C++ constructor. |
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177 // --------------------------------------------------------------------------- |
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178 // |
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179 CAknTreeLeaf::CAknTreeLeaf( TUint32 aFlags ) |
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180 : iFlags( aFlags ) |
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181 { |
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182 } |
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183 |
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184 |
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185 // --------------------------------------------------------------------------- |
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186 // Returns flags set for the leaf. |
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187 // --------------------------------------------------------------------------- |
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188 // |
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189 TUint32 CAknTreeLeaf::Flags() const |
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190 { |
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191 return iFlags; |
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192 } |
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193 |
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194 |
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195 // --------------------------------------------------------------------------- |
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196 // Sets flags for the leaf. |
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197 // --------------------------------------------------------------------------- |
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198 // |
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199 void CAknTreeLeaf::SetFlags( TUint32 aFlags ) |
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200 { |
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201 iFlags = aFlags; |
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202 } |
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203 |