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1 /* |
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2 * Copyright (c) 2002-2006 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: |
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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 FILES |
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20 #include <txtetext.h> // for CPlainText |
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21 #include "finditemcontroller.h" |
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22 #include <finditemdialog.h> |
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23 #include <txtfrmat.h> // for TCharFormatMask |
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24 #include <txtrich.h> // for CRichText |
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25 #include <centralrepository.h> |
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26 #include <CommonUiInternalCRKeys.h> |
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27 |
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28 const TInt KFindItemMinDigitsToFind = 5; |
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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 // CFindItemController::TappedItemL |
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34 // Moves the selection to tapped item |
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35 // ----------------------------------------------------------------------------- |
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36 // |
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37 TBool CFindItemController::TappedItemL( const TInt aPosition ) |
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38 { |
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39 TBool tappedItem = EFalse; |
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40 |
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41 if( aPosition < 0 || aPosition >= ItemCount() ) |
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42 { |
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43 return tappedItem; // Error: invalid position. |
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44 } |
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45 |
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46 // Change selection. |
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47 TInt steps = aPosition - iEngine->Position(); |
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48 TInt i = steps; |
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49 do |
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50 { |
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51 tappedItem = ETrue; |
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52 if ( steps < 0 ) // Backward |
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53 { |
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54 iEngine->PrevItem( iItem ); |
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55 i++; |
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56 } |
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57 else if ( steps > 0 ) // Forward |
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58 { |
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59 iEngine->NextItem( iItem ); |
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60 i--; |
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61 } |
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62 else |
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63 { |
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64 break; |
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65 } |
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66 } |
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67 while ( i != 0 ); |
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68 |
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69 iDialog->SelectionChangedL( iItem, ETrue ); |
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70 |
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71 return tappedItem; |
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72 } |
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73 |
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74 // ----------------------------------------------------------------------------- |
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75 // CFindItemController::NextItemL() |
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76 // Moves the selection to next item |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 TBool CFindItemController::NextItemL() |
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80 { |
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81 TBool notLastItem = iEngine->NextItem( iItem ); |
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82 if ( notLastItem ) |
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83 { |
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84 iDialog->SelectionChangedL( iItem, ETrue ); |
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85 } |
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86 return notLastItem; |
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87 } |
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88 |
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89 // ----------------------------------------------------------------------------- |
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90 // CFindItemController::PrevItemL |
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91 // Moves the selections to previous item |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 TBool CFindItemController::PrevItemL() |
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95 { |
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96 TBool notFirstItem = iEngine->PrevItem( iItem ); |
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97 if ( notFirstItem ) |
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98 { |
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99 iDialog->SelectionChangedL( iItem, EFalse ); |
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100 } |
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101 return notFirstItem; |
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102 } |
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103 |
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104 // ----------------------------------------------------------------------------- |
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105 // CFindItemController::MoveUpL |
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106 // Move into previous row where found item is |
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107 // (and select first item in that row) |
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108 // ----------------------------------------------------------------------------- |
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109 // |
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110 void CFindItemController::MoveUpL() |
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111 { |
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112 if ( FirstItem() ) |
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113 { |
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114 return; |
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115 } |
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116 |
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117 TInt engPos = iEngine->Position(); |
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118 |
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119 const CArrayFixFlat<CFindItemEngine::SFoundItem>* |
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120 itemArray = iEngine->ItemArray(); |
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121 |
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122 // Check that if at the first line MoveUpL does nothing |
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123 if ( iDialog->AtSameLine( |
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124 itemArray->At( iEngine->Position() ).iStartPos, |
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125 itemArray->At( 0 ).iStartPos ) ) |
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126 { |
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127 return; |
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128 } |
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129 |
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130 // Go back until the prev item is not at the same line |
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131 TBool firstItem; |
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132 do |
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133 { |
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134 firstItem = iEngine->PrevItem( iItem ); |
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135 } |
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136 while ( firstItem && iDialog->AtSameLine( |
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137 itemArray->At( iEngine->Position() ).iStartPos, |
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138 itemArray->At( engPos ).iStartPos ) ); |
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139 |
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140 // Go to first item in the row |
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141 while ( !FirstItem() && |
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142 iDialog->AtSameLine( |
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143 itemArray->At( iEngine->Position() - 1 ).iStartPos, |
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144 itemArray->At( iEngine->Position() ).iStartPos ) ) |
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145 { |
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146 iEngine->PrevItem( iItem ); |
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147 } |
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148 |
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149 iDialog->SelectionChangedL( iItem, EFalse ); |
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150 } |
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151 |
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152 // ----------------------------------------------------------------------------- |
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153 // CFindItemController::MoveDownL |
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154 // Move into next row where found item is |
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155 // (and select first item in that row) |
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156 // ----------------------------------------------------------------------------- |
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157 // |
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158 void CFindItemController::MoveDownL() |
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159 { |
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160 // Return if there's no more items. |
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161 if ( LastItem() ) |
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162 { |
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163 return; |
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164 } |
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165 |
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166 TInt engPos = iEngine->Position(); |
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167 |
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168 const CArrayFixFlat<CFindItemEngine::SFoundItem>* |
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169 itemArray = iEngine->ItemArray(); |
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170 |
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171 // If the next item is not in the same line -> NextItem() |
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172 if ( !( iDialog->AtSameLine( |
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173 itemArray->At( engPos ).iStartPos, |
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174 itemArray->At( engPos + 1 ).iStartPos ) ) ) |
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175 { |
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176 NextItemL(); |
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177 return; |
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178 } |
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179 |
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180 // Check that if at the last line MoveDownL does nothing |
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181 if ( iDialog->AtSameLine( |
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182 itemArray->At( engPos ).iStartPos, |
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183 itemArray->At( itemArray->Count() - 1 ).iStartPos ) ) |
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184 { |
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185 return; |
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186 } |
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187 |
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188 |
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189 // Go forward until the next item is not at the same line |
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190 TBool lastItem; |
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191 do |
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192 { |
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193 lastItem = iEngine->NextItem( iItem ); |
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194 } |
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195 while ( lastItem && |
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196 iDialog->AtSameLine( |
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197 itemArray->At( engPos ).iStartPos + |
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198 itemArray->At( engPos ).iLength, |
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199 itemArray->At( iEngine->Position() ).iStartPos ) ); |
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200 |
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201 iDialog->SelectionChangedL( iItem, ETrue ); |
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202 } |
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203 |
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204 // ----------------------------------------------------------------------------- |
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205 // CFindItemController::MarkFoundItemsL |
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206 // Marks found items: Underlines all found strings and updates the selection |
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207 // ----------------------------------------------------------------------------- |
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208 // |
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209 void CFindItemController::MarkFoundItemsL() |
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210 { |
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211 const CArrayFixFlat<CFindItemEngine::SFoundItem>* |
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212 itemArray = iEngine->ItemArray(); |
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213 |
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214 iEngine->Item( iItem ); |
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215 |
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216 // Underline all found items |
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217 TCharFormatMask charFormatMask; |
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218 TCharFormat charFormat; |
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219 |
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220 charFormatMask.SetAttrib( EAttFontUnderline ); |
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221 // interested in underline |
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222 charFormat.iFontPresentation.iUnderline = EUnderlineOn; // set it on |
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223 TInt i = 0; |
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224 |
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225 while ( i < itemArray->Count() ) |
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226 { |
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227 iRichText->ApplyCharFormatL( |
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228 charFormat, |
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229 charFormatMask, |
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230 ( *itemArray )[ i ].iStartPos, |
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231 ( *itemArray )[ i ].iLength ); |
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232 i++; |
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233 } |
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234 |
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235 // Highlight the 'selected' item |
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236 |
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237 iDialog->SelectionChangedL( iItem ); |
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238 } |
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239 |
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240 // ----------------------------------------------------------------------------- |
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241 // CFindItemController::CFindItemController |
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242 // C++ default constructor |
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243 // ----------------------------------------------------------------------------- |
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244 // |
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245 CFindItemController::CFindItemController() |
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246 { |
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247 } |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CFindItemController::ConstructL |
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251 // EPOC constructor |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 void CFindItemController::ConstructL( |
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255 const TDesC& aText, |
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256 const CFindItemEngine::TFindItemSearchCase aSearchCase ) |
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257 { |
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258 TInt minDigitsToFind = KFindItemMinDigitsToFind; // default |
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259 TRAP_IGNORE( minDigitsToFind = GetMinDigitsToFindL(); ); |
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260 #ifdef _DEBUG |
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261 RDebug::Print(_L("CFindItemController::ConstructL(), minDigitsToFind %d"), minDigitsToFind ); |
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262 #endif |
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263 iEngine = CFindItemEngine::NewL( aText, aSearchCase, minDigitsToFind ); |
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264 } |
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265 |
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266 // ----------------------------------------------------------------------------- |
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267 // FindItemController::NewL |
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268 // Two-phased constructor |
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269 // ----------------------------------------------------------------------------- |
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270 // |
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271 CFindItemController* CFindItemController::NewL( |
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272 MFindItemDialogCallBack* aDialog, |
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273 CRichText* aRichText, |
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274 const TDesC& aText, |
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275 const CFindItemEngine::TFindItemSearchCase aSearchCase ) |
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276 { |
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277 CFindItemController* self = new (ELeave) CFindItemController; |
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278 |
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279 self->iDialog = aDialog; |
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280 self->iRichText = aRichText; |
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281 |
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282 CleanupStack::PushL( self ); |
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283 self->ConstructL( aText, aSearchCase ); |
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284 CleanupStack::Pop(); |
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285 |
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286 return self; |
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287 } |
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288 |
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289 // ----------------------------------------------------------------------------- |
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290 // CFindItemController::~CFindItemController |
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291 // Destructor |
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292 // ----------------------------------------------------------------------------- |
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293 // |
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294 CFindItemController::~CFindItemController() |
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295 { |
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296 delete iEngine; |
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297 } |
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298 |
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299 // ----------------------------------------------------------------------------- |
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300 // CFindItemController::FillScrollBarItemsArrayL |
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301 // Fills array with items (TInts) which causes scrollbar to move |
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302 // ----------------------------------------------------------------------------- |
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303 // |
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304 void CFindItemController::FillScrollBarItemsArrayL( |
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305 CArrayFixFlat<TInt>* aArray ) |
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306 { |
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307 |
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308 // Doesn't work for long text (>=2000chars) and it's impossible to do |
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309 // because if the text is long enough only part of it will be formatted |
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310 // and you cannot check if two string are at the same line in band that |
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311 // is not formatted. So for long text, every item is counted. |
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312 |
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313 const CArrayFixFlat<CFindItemEngine::SFoundItem>* |
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314 itemArray = iEngine->ItemArray(); |
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315 |
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316 for ( TInt i=0; i < itemArray->Count(); i++ ) |
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317 { |
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318 TInt j = i + 1; |
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319 while ( j < itemArray->Count() && |
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320 iDialog->AtSameLine( |
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321 itemArray->At( i ).iStartPos, |
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322 itemArray->At( j ).iStartPos ) ) |
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323 { |
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324 j++; |
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325 } |
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326 if ( j < itemArray->Count() ) |
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327 { |
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328 aArray->AppendL(j); |
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329 } |
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330 i = j - 1; |
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331 } |
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332 } |
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333 |
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334 // ----------------------------------------------------------------------------- |
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335 // CFindItemController::IsAtSameLineAsFirstItem |
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336 // Check if item is at the same line as first item |
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337 // ----------------------------------------------------------------------------- |
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338 // |
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339 TBool CFindItemController::IsAtSameLineAsFirstItem() |
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340 { |
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341 if ( FirstItem() ) |
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342 { |
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343 return ETrue; |
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344 } |
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345 |
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346 const CArrayFixFlat<CFindItemEngine::SFoundItem>* |
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347 itemArray = iEngine->ItemArray(); |
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348 |
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349 return iDialog->AtSameLine( |
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350 itemArray->At( Position() ).iStartPos, |
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351 itemArray->At( 0 ).iStartPos ); |
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352 } |
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353 |
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354 // ----------------------------------------------------------------------------- |
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355 // CFindItemController::IsAtSameLineAsLastItem |
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356 // Check if item is at the same line as last item |
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357 // ----------------------------------------------------------------------------- |
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358 // |
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359 TBool CFindItemController::IsAtSameLineAsLastItem() |
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360 { |
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361 if ( LastItem() ) |
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362 { |
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363 return ETrue; |
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364 } |
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365 |
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366 const CArrayFixFlat<CFindItemEngine::SFoundItem>* |
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367 itemArray = iEngine->ItemArray(); |
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368 |
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369 return iDialog->AtSameLine( |
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370 itemArray->At( Position() ).iStartPos, |
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371 itemArray->At( ItemCount() - 1 ).iStartPos ); |
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372 } |
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373 |
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374 // ----------------------------------------------------------------------------- |
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375 // CFindItemController::GetMinDigitsToFindL |
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376 // Get minimum number of digits to find. |
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377 // ----------------------------------------------------------------------------- |
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378 // |
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379 TInt CFindItemController::GetMinDigitsToFindL() |
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380 { |
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381 TInt err = KErrNone; |
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382 CRepository* variation = CRepository::NewL( KCRUidCommonUi ); |
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383 TInt value; |
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384 err = variation->Get( KCuiMinDigitsToFind, value ); |
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385 delete variation; |
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386 variation = NULL; |
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387 if ( err != KErrNone ) |
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388 { |
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389 value = KFindItemMinDigitsToFind; |
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390 } |
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391 return value; |
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392 } |
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393 |
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394 // ----------------------------------------------------------------------------- |
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395 // CFindItemController::Item() |
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396 // Get indexed item from engine side. |
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397 // ----------------------------------------------------------------------------- |
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398 // |
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399 TBool CFindItemController::Item( |
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400 const TInt aIndex, |
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401 CFindItemEngine::SFoundItem& aItem ) const |
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402 { |
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403 TInt validItem = EFalse; |
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404 if( aIndex >= 0 && aIndex < ItemCount() ) |
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405 { |
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406 aItem = iEngine->ItemArray()->At( aIndex ); |
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407 validItem = ETrue; |
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408 } |
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409 return validItem; |
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410 } |
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411 |
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412 // End of File |