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: List box model for the list-box used to display the Location |
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15 * Centre Application |
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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 // SYSTEM INCLUDES |
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21 |
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22 // USER INCLUDES |
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23 #include "lclistboxmodel.h" |
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24 #include "lclocationappinfo.h" |
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25 #include "lcerrors.h" |
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26 |
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27 // CONSTANT DEFINTION |
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28 const TInt KLcBufferSize = 128; |
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29 |
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30 // ========================= MEMBER FUNCTIONS ================================ |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // CLcListBoxModel::CLcListBoxModel |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 CLcListBoxModel::CLcListBoxModel( CLcLocationAppInfoArray* aAppArray ) |
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37 :iAppArray( aAppArray ) |
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38 { |
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39 // C++ Default constructor. No allocations or functions which can Leave |
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40 // should be called from here. |
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41 } |
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42 |
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43 // --------------------------------------------------------------------------- |
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44 // CLcListBoxModel::~CLcListBoxModel |
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45 // --------------------------------------------------------------------------- |
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46 // |
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47 CLcListBoxModel::~CLcListBoxModel() |
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48 { |
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49 // C++ Destructor. Free all resources associated with this class. |
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50 |
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51 // Delete the MdcaPoint buffer |
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52 delete iBuffer; |
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53 |
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54 // Delete the Application information array |
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55 delete iAppArray; |
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56 } |
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57 |
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58 // --------------------------------------------------------------------------- |
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59 // void CLcListBoxModel::ConstructL |
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60 // --------------------------------------------------------------------------- |
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61 // |
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62 void CLcListBoxModel::ConstructL() |
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63 { |
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64 // Create the Buffer for packing the MdcaPoint |
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65 iBuffer = HBufC16::NewL( KLcBufferSize ); |
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66 } |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // CLcListBoxModel* CLcListBoxModel::NewL |
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70 // --------------------------------------------------------------------------- |
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71 // |
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72 CLcListBoxModel* CLcListBoxModel::NewL( CLcLocationAppInfoArray* aAppArray ) |
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73 { |
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74 CLcListBoxModel* self = new ( ELeave ) CLcListBoxModel( aAppArray ); |
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75 CleanupStack::PushL( self ); |
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76 self->ConstructL(); |
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77 CleanupStack::Pop( self ); |
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78 return self; |
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79 } |
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80 |
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81 // --------------------------------------------------------------------------- |
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82 // void CLcListBoxModel::UpdateModel |
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83 // --------------------------------------------------------------------------- |
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84 // |
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85 void CLcListBoxModel::UpdateModel( CLcLocationAppInfoArray* aAppArray ) |
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86 { |
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87 // The model contents have changed. We have to remove the old App array |
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88 // and assign the new one. |
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89 |
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90 delete iAppArray; |
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91 |
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92 // Now assign the new one |
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93 iAppArray = aAppArray; |
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94 } |
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95 |
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96 // --------------------------------------------------------------------------- |
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97 // CLcLocationAppInfoArray& CLcListBoxModel::AppArray |
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98 // --------------------------------------------------------------------------- |
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99 // |
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100 CLcLocationAppInfoArray& CLcListBoxModel::AppArray() |
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101 { |
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102 // If the Array is not set then there is a programming error from which |
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103 // we cannot recover. So Panic the Application |
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104 if( !iAppArray ) |
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105 { |
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106 User::Panic( KLcPanicCategory, ELcInvalidIndex ); |
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107 } |
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108 return *iAppArray; |
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109 } |
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110 |
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111 // --------------------------------------------------------------------------- |
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112 // TInt CLcListBoxModel::AppInfoId |
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113 // --------------------------------------------------------------------------- |
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114 // |
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115 TPtrC CLcListBoxModel::AppInfoId( TInt aIndex ) const |
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116 { |
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117 // Check if the element requested is out of array bounds |
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118 if( aIndex < 0 || aIndex >= iAppArray->Count()) |
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119 { |
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120 User::Panic( KLcPanicCategory, ELcInvalidIndex ); |
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121 } |
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122 |
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123 return (*iAppArray)[ aIndex ].Id(); |
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124 } |
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125 |
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126 // --------------------------------------------------------------------------- |
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127 // TInt CLcListBoxModel::MdcaCount |
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128 // --------------------------------------------------------------------------- |
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129 // |
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130 TInt CLcListBoxModel::MdcaCount() const |
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131 { |
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132 if ( iAppArray ) |
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133 { |
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134 return iAppArray->Count(); |
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135 } |
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136 else |
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137 { |
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138 return 0; |
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139 } |
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140 } |
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141 |
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142 // --------------------------------------------------------------------------- |
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143 // TPtrC16 CLcListBoxModel::MdcaPoint |
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144 // --------------------------------------------------------------------------- |
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145 // |
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146 TPtrC16 CLcListBoxModel::MdcaPoint( TInt aIndex ) const |
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147 { |
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148 // If the Array is not set then there is a programming error from which |
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149 // we cannot recover. So Panic the Application |
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150 if( !iAppArray ) |
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151 { |
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152 User::Panic( KLcPanicCategory, ELcInvalidIndex ); |
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153 } |
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154 |
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155 // Pack the contents into the Buffer. We dont have to re-allocate the buffer |
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156 // everytime because the length of the name field is restricted in the |
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157 // Location Centre Registration API |
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158 |
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159 // Tabulator Defintion |
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160 _LIT( KTab, "\t" ); |
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161 |
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162 // Create formatted item string. |
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163 // list_single_large_pane: |
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164 // list item string format: "1\tTextLabel\t0\t0" |
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165 // where 0 is an index to icon array |
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166 TPtr16 buf( iBuffer->Des()); |
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167 buf.Zero(); |
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168 |
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169 // Append the Icon Index |
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170 buf.AppendNum( aIndex ); |
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171 |
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172 // Append the Tab Key |
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173 buf.Append( KTab ); |
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174 |
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175 // Append the Application Information |
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176 buf.Append( (*iAppArray)[aIndex].Name()); |
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177 |
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178 // Append the Tab Key |
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179 buf.Append( KTab ); |
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180 |
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181 // Append the Tab Key |
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182 buf.Append( KTab ); |
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183 return buf; |
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184 } |
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