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1 /* |
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2 * Copyright (c) 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: Freestyle tree node implementation. |
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15 * |
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16 */ |
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17 |
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18 #include "emailtrace.h" |
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19 #include "fstreenode.h" |
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20 #include "fstreenodevisualizer.h" |
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21 #include "fsgenericpanic.h" |
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22 |
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23 // ======== MEMBER FUNCTIONS ======== |
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24 |
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25 // --------------------------------------------------------------------------- |
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26 // Two-phased constructor. |
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27 // --------------------------------------------------------------------------- |
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28 // |
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29 EXPORT_C CFsTreeNode* CFsTreeNode::NewL( CFsTreeNode& aParent, |
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30 MFsTreeItemData& aData, MFsTreeNodeVisualizer& aVisualizer ) |
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31 { |
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32 FUNC_LOG; |
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33 CFsTreeNode* self = new( ELeave ) CFsTreeNode( &aParent, aData, |
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34 aVisualizer ); |
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35 CleanupStack::PushL( self ); |
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36 self->ConstructL( ); |
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37 CleanupStack::Pop( self ); |
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38 return self; |
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39 } |
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40 |
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41 // --------------------------------------------------------------------------- |
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42 // C++ destructor. |
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43 // --------------------------------------------------------------------------- |
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44 // |
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45 CFsTreeNode::~CFsTreeNode() |
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46 { |
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47 FUNC_LOG; |
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48 iChildren.Close(); |
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49 } |
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50 |
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51 // --------------------------------------------------------------------------- |
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52 // Gets node visualizer. |
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53 // --------------------------------------------------------------------------- |
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54 // |
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55 MFsTreeNodeVisualizer* CFsTreeNode::NodeVisualizer() const |
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56 { |
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57 FUNC_LOG; |
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58 return ( static_cast<MFsTreeNodeVisualizer*>(iVisualizer) ); |
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59 } |
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60 |
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61 // --------------------------------------------------------------------------- |
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62 // Inserts child with given index. |
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63 // --------------------------------------------------------------------------- |
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64 // |
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65 TInt CFsTreeNode::InsertChild( CFsTreeItem* aItem, const TInt aIndex ) |
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66 { |
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67 FUNC_LOG; |
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68 TInt childIndex = 0; |
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69 |
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70 if ( aIndex == KFsTreeChildIndexLast ) |
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71 { |
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72 childIndex = iChildren.Append( aItem ); |
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73 } |
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74 else |
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75 { |
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76 childIndex = iChildren.Insert( aItem, aIndex ); |
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77 } |
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78 |
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79 return childIndex; |
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80 } |
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81 |
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82 // --------------------------------------------------------------------------- |
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83 // Removes child with given index. |
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84 // --------------------------------------------------------------------------- |
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85 // |
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86 CFsTreeItem* CFsTreeNode::RemoveChild( const TInt aIndex ) |
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87 { |
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88 FUNC_LOG; |
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89 CFsTreeItem* childItem = NULL; |
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90 |
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91 childItem = Child( aIndex ); |
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92 if (childItem) |
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93 { |
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94 iChildren.Remove( aIndex ); |
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95 } |
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96 |
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97 return childItem; |
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98 } |
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99 |
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100 // --------------------------------------------------------------------------- |
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101 // Gets child with given index (position). |
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102 // --------------------------------------------------------------------------- |
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103 // |
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104 CFsTreeItem* CFsTreeNode::Child( const TInt aIndex ) const |
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105 { |
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106 FUNC_LOG; |
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107 CFsTreeItem* treeItem = NULL; |
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108 |
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109 if (( aIndex < iChildren.Count() ) && ( aIndex >= 0 )) |
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110 { |
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111 treeItem = iChildren[aIndex]; |
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112 } |
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113 else |
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114 { |
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115 FsGenericPanic(EFsListPanicIndexOutOfRange); |
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116 } |
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117 |
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118 return treeItem; |
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119 } |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // Gets an index of desired child tree item. |
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123 // --------------------------------------------------------------------------- |
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124 // |
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125 TInt CFsTreeNode::Index( const CFsTreeItem* aItem ) const |
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126 { |
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127 FUNC_LOG; |
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128 return iChildren.Find(aItem); |
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129 } |
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130 |
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131 // --------------------------------------------------------------------------- |
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132 // Returns the number of children for the node. |
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133 // --------------------------------------------------------------------------- |
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134 // |
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135 TUint CFsTreeNode::CountChildren() const |
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136 { |
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137 FUNC_LOG; |
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138 return iChildren.Count(); |
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139 } |
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140 |
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141 // --------------------------------------------------------------------------- |
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142 // Returns recursively the number of all children under the node |
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143 // --------------------------------------------------------------------------- |
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144 // |
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145 TUint CFsTreeNode::CountChildrenRecursively() const |
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146 { |
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147 FUNC_LOG; |
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148 TInt count ( 0 ); |
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149 for ( TInt i = 0; i < iChildren.Count(); i++ ) |
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150 { |
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151 count++; |
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152 count += iChildren[i]->CountChildrenRecursively(); |
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153 } |
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154 return count; |
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155 } |
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156 |
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157 // --------------------------------------------------------------------------- |
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158 // Checks if tree item is a node. |
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159 // --------------------------------------------------------------------------- |
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160 TBool CFsTreeNode::IsNode() const |
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161 { |
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162 FUNC_LOG; |
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163 return ETrue; |
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164 } |
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165 |
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166 // --------------------------------------------------------------------------- |
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167 // Return pointer to node object. Returned value is @c NULL, if the item |
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168 // is not derived from @c CFsTreeNode. |
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169 // --------------------------------------------------------------------------- |
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170 // |
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171 CFsTreeNode* CFsTreeNode::Node() |
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172 { |
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173 FUNC_LOG; |
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174 return this; |
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175 } |
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176 |
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177 // --------------------------------------------------------------------------- |
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178 // C++ constructor. |
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179 // --------------------------------------------------------------------------- |
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180 // |
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181 CFsTreeNode::CFsTreeNode( CFsTreeNode* aParent, MFsTreeItemData& aData, |
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182 MFsTreeNodeVisualizer& aVisualizer ) |
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183 : CFsTreeItem( aParent, aData, aVisualizer ) |
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184 { |
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185 FUNC_LOG; |
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186 |
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187 } |
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188 |
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189 |
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190 // --------------------------------------------------------------------------- |
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191 // Second phase constructor. |
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192 // --------------------------------------------------------------------------- |
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193 // |
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194 void CFsTreeNode::ConstructL( ) |
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195 { |
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196 FUNC_LOG; |
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197 |
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198 } |
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199 |