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1 /* |
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2 * Copyright (c) 2009-2009 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 pane component for UI fields |
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15 * |
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16 */ |
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17 #include "cmrlistpane.h" |
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18 |
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19 #include <eikscrlb.h> |
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20 #include <AknUtils.h> |
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21 #include <touchfeedback.h> |
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22 |
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23 #include "mesmrfieldstorage.h" |
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24 #include "cesmrfield.h" |
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25 |
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26 #include "emailtrace.h" |
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27 |
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28 namespace // codescanner::namespace |
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29 { |
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30 /** |
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31 * Vertical scroll margin |
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32 */ |
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33 const TInt KVerticalScrollMargin = 3; |
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34 |
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35 // --------------------------------------------------------------------------- |
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36 // IndexByFieldId |
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37 // --------------------------------------------------------------------------- |
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38 // |
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39 TInt IndexByFieldId( const MESMRFieldStorage& aFactory, |
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40 TESMREntryFieldId aFieldId ) |
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41 { |
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42 TInt index( KErrNotFound ); |
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43 TInt count( aFactory.Count() ); |
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44 |
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45 for ( TInt i = 0; i < count; ++i ) |
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46 { |
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47 if ( aFactory.Field( i )->FieldId() == aFieldId ) |
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48 { |
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49 index = i; |
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50 break; |
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51 } |
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52 } |
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53 |
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54 return index; |
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55 } |
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56 } |
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57 |
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58 //----- MEMBER FUNCTIONS ---- |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // CMRListPane::NewL |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 CMRListPane* CMRListPane::NewL( const CCoeControl& aParent, |
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65 MESMRFieldStorage& aFactory, |
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66 TAknDoubleSpanScrollBarModel& aScrollModel ) |
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67 { |
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68 CMRListPane* self = new (ELeave) CMRListPane( aFactory, aScrollModel ); |
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69 CleanupStack::PushL( self ); |
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70 self->ConstructL( aParent ); |
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71 CleanupStack::Pop( self ); |
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72 return self; |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // CMRListPane::~CMRListPane |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 CMRListPane::~CMRListPane() |
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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 // CMRListPane::CMRListPane |
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85 // --------------------------------------------------------------------------- |
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86 // |
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87 CMRListPane::CMRListPane( MESMRFieldStorage& aFactory, |
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88 TAknDoubleSpanScrollBarModel& aScrollModel ) |
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89 : iFactory( aFactory ), |
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90 iScrollModel( aScrollModel ) |
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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 // CMRListPane::ConstructL |
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96 // --------------------------------------------------------------------------- |
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97 // |
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98 void CMRListPane::ConstructL( const CCoeControl& aParent ) |
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99 { |
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100 SetContainerWindowL( aParent ); |
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101 TBool focusSet = EFalse; |
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102 const TInt count( iFactory.Count() ); |
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103 for ( TInt i = 0; i < count; i++ ) |
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104 { |
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105 iFactory.Field(i)->SetContainerWindowL( *this ); |
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106 } |
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107 |
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108 for ( TInt i = 0; i < count; i++ ) |
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109 { |
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110 CESMRField* field = iFactory.Field( i ); |
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111 |
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112 // Initialize field |
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113 field->InitializeL(); |
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114 User::LeaveIfError( field->SetParent( this ) ); |
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115 |
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116 if ( !focusSet |
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117 && field->IsVisible() |
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118 && !field->IsNonFocusing()) |
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119 { |
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120 field->SetOutlineFocusL( ETrue ); |
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121 focusSet = ETrue; |
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122 iFocus = i; |
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123 } |
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124 } |
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125 } |
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126 |
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127 // --------------------------------------------------------------------------- |
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128 // CMRListPane::FocusedItem |
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129 // --------------------------------------------------------------------------- |
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130 // |
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131 CESMRField* CMRListPane::FocusedItem() const |
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132 { |
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133 FUNC_LOG; |
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134 CESMRField* field = NULL; |
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135 if ( iFactory.Count() > 0 ) |
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136 { |
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137 field = iFactory.Field( iFocus ); |
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138 } |
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139 return field; |
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140 } |
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141 |
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142 // --------------------------------------------------------------------------- |
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143 // CMRListPane::CountComponentControls |
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144 // --------------------------------------------------------------------------- |
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145 // |
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146 TInt CMRListPane::CountComponentControls() const |
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147 { |
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148 return iFactory.Count(); |
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149 } |
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150 |
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151 // --------------------------------------------------------------------------- |
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152 // CMRListPane::ComponentControl |
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153 // --------------------------------------------------------------------------- |
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154 // |
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155 CCoeControl* CMRListPane::ComponentControl( TInt aIndex ) const |
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156 { |
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157 return iFactory.Field( aIndex ); |
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158 } |
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159 |
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160 // --------------------------------------------------------------------------- |
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161 // CMRListPane::SizeChanged |
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162 // --------------------------------------------------------------------------- |
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163 // |
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164 void CMRListPane::SizeChanged() |
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165 { |
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166 TPoint tl( Position() ); |
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167 TInt scrollSpan = 0; |
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168 // Loop all the visible fields and set size and position in the list |
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169 TBool topVisibleFound( EFalse ); |
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170 |
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171 const TInt count( iFactory.Count() ); |
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172 for ( TInt i = 0; i < count; i++ ) |
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173 { |
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174 CESMRField* field = iFactory.Field( i ); |
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175 |
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176 if ( field->IsVisible() ) |
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177 { |
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178 LayoutField( *field, tl ); |
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179 |
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180 if ( !topVisibleFound ) |
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181 { |
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182 iTopVisibleIndex = i; |
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183 topVisibleFound = ETrue; |
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184 } |
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185 |
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186 TInt height = field->Size().iHeight; |
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187 tl.iY += height; |
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188 scrollSpan += height; |
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189 } |
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190 } |
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191 |
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192 iScrollModel.SetScrollSpan( scrollSpan ); |
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193 iScrollModel.SetWindowSize( iSize.iHeight ); |
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194 UpdateFocusPosition(); |
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195 } |
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196 |
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197 // --------------------------------------------------------------------------- |
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198 // CMRListPane::OfferKeyEventL |
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199 // --------------------------------------------------------------------------- |
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200 // |
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201 TKeyResponse CMRListPane::OfferKeyEventL( const TKeyEvent &aKeyEvent, |
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202 TEventCode aType ) |
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203 { |
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204 TKeyResponse response( EKeyWasNotConsumed ); |
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205 |
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206 // If we have at least one item in the list |
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207 if ( iFocus < iFactory.Count() ) |
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208 { |
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209 CESMRField* field = iFactory.Field( iFocus ); |
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210 // First check if the focused item needs the key event |
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211 response = field->OfferKeyEventL( aKeyEvent, aType ); |
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212 |
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213 if ( aType == EEventKey |
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214 && response == EKeyWasNotConsumed ) |
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215 { |
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216 // Check if the focus should be changed |
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217 switch ( aKeyEvent.iScanCode ) |
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218 { |
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219 case EStdKeyUpArrow: |
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220 { |
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221 response = MoveFocusUpL(); |
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222 break; |
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223 } |
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224 case EStdKeyDownArrow: |
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225 { |
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226 response = MoveFocusDownL(); |
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227 break; |
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228 } |
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229 default: |
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230 { |
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231 break; |
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232 } |
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233 } |
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234 } |
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235 } |
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236 return response; |
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237 } |
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238 |
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239 // --------------------------------------------------------------------------- |
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240 // CMRListPane::ControlSizeChanged |
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241 // --------------------------------------------------------------------------- |
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242 // |
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243 void CMRListPane::ControlSizeChanged( CESMRField* aCtrl ) |
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244 { |
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245 if ( !aCtrl ) |
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246 { |
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247 SizeChanged(); |
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248 } |
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249 else |
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250 { |
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251 TPoint tl( aCtrl->Position() ); |
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252 TInt index = IndexByFieldId( iFactory, aCtrl->FieldId() ); |
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253 |
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254 // Relayout aCtrl |
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255 TSize old( aCtrl->Size() ); |
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256 TSize size( aCtrl->MinimumSize() ); |
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257 if ( aCtrl->IsExpandable() ) |
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258 { |
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259 size.iHeight = aCtrl->ExpandedHeight(); |
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260 } |
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261 aCtrl->SetSize( size ); |
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262 iScrollModel.SetScrollSpan( iScrollModel.ScrollSpan() |
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263 + size.iHeight - old.iHeight ); |
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264 |
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265 // Move other fields |
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266 ++index; |
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267 tl.iY += size.iHeight; |
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268 MoveFields( index, tl ); |
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269 UpdateFocusPosition(); |
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270 } |
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271 } |
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272 |
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273 // --------------------------------------------------------------------------- |
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274 // CMRListPane::InsertControl |
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275 // --------------------------------------------------------------------------- |
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276 // |
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277 void CMRListPane::InsertControl( TESMREntryFieldId aField ) |
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278 { |
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279 CESMRField* field = iFactory.FieldById( aField ); |
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280 |
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281 if ( field && !field->IsVisible() ) |
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282 { |
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283 // Make field visible |
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284 field->MakeVisible( ETrue ); |
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285 TInt index = IndexByFieldId( iFactory, aField ); |
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286 if ( index < iTopVisibleIndex ) |
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287 { |
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288 iTopVisibleIndex = index; |
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289 } |
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290 |
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291 TPoint tl( Rect().iTl ); |
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292 TInt prevIndex = index - 1; |
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293 |
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294 // Get previous visible field position |
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295 if ( prevIndex >= 0 ) |
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296 { |
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297 CESMRField* previous = NULL; |
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298 do |
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299 { |
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300 previous = iFactory.Field( prevIndex-- ); |
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301 } |
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302 while ( prevIndex >= 0 && !previous->IsVisible() ); |
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303 |
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304 tl.iY = previous->Rect().iBr.iY; |
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305 } |
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306 |
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307 // Layout field |
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308 LayoutField( *field, tl ); |
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309 iScrollModel.SetScrollSpan( iScrollModel.ScrollSpan() |
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310 + field->Size().iHeight ); |
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311 |
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312 // Move following fields |
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313 tl.iY += field->Size().iHeight; |
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314 MoveFields( ++index, tl ); |
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315 UpdateFocusPosition(); |
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316 } |
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317 } |
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318 |
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319 // --------------------------------------------------------------------------- |
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320 // CMRListPane::InsertControl |
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321 // --------------------------------------------------------------------------- |
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322 // |
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323 void CMRListPane::RemoveControl( TESMREntryFieldId aField ) |
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324 { |
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325 CESMRField* field = iFactory.FieldById( aField ); |
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326 |
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327 if ( field && field->IsVisible() ) |
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328 { |
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329 field->MakeVisible( EFalse ); |
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330 iScrollModel.SetScrollSpan( iScrollModel.ScrollSpan() - field->Size().iHeight ); |
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331 TInt index = IndexByFieldId( iFactory, aField ); |
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332 TBool focused = ( index == iFocus )? ETrue : EFalse; |
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333 |
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334 if ( index == iTopVisibleIndex ) |
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335 { |
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336 // Find next |
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337 TInt count( iFactory.Count() ); |
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338 while ( index < count ) |
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339 { |
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340 if ( iFactory.Field( ++index )->IsVisible() ) |
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341 { |
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342 iTopVisibleIndex = index; |
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343 break; |
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344 } |
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345 } |
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346 } |
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347 else |
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348 { |
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349 ++index; |
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350 } |
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351 TPoint pos( field->Position() ); |
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352 MoveFields( index, pos ); |
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353 if ( focused && !field->IsNonFocusing() ) |
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354 { |
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355 TRAP_IGNORE( DoSetFocusL( index ) ) |
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356 } |
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357 UpdateFocusPosition(); |
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358 } |
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359 } |
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360 |
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361 // --------------------------------------------------------------------------- |
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362 // CMRListPane::IsControlVisible |
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363 // --------------------------------------------------------------------------- |
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364 // |
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365 TBool CMRListPane::IsControlVisible( TESMREntryFieldId aField ) |
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366 { |
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367 TBool visible( EFalse ); |
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368 CESMRField* field = iFactory.FieldById( aField ); |
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369 |
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370 if ( field ) |
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371 { |
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372 visible = field->IsVisible(); |
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373 } |
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374 |
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375 return visible; |
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376 } |
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377 |
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378 // --------------------------------------------------------------------------- |
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379 // CMRListPane::SetControlFocusedL |
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380 // --------------------------------------------------------------------------- |
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381 // |
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382 void CMRListPane::SetControlFocusedL( TESMREntryFieldId aField ) |
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383 { |
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384 TInt count = iFactory.Count(); |
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385 for ( TInt i(0); i < count; i++ ) |
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386 { |
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387 CESMRField* field = iFactory.Field(i); |
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388 |
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389 if ( field->FieldId() == aField ) |
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390 { |
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391 if( field->IsVisible() && !field->IsNonFocusing() ) |
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392 { |
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393 // Remove current focus before setting new one |
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394 CESMRField* focusedField = FocusedItem(); |
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395 ASSERT( focusedField ); |
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396 focusedField->SetOutlineFocusL( EFalse ); |
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397 |
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398 // Set new focus |
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399 field->SetOutlineFocusL( ETrue ); |
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400 iFocus = i; |
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401 break; |
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402 } |
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403 else |
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404 { |
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405 // Not possible to set focus to non-visible control |
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406 User::Leave( KErrGeneral ); |
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407 } |
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408 } |
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409 } |
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410 } |
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411 |
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412 // SCROLLING_MOD: These two methods are for CESMRRichTextViewer to |
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413 // be able to control view area |
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414 // --------------------------------------------------------------------------- |
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415 // CMRListPane::MoveListAreaDownL |
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416 // --------------------------------------------------------------------------- |
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417 // |
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418 void CMRListPane::MoveListAreaDownL( TInt aAmount ) |
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419 { |
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420 FUNC_LOG; |
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421 // Method for CESMRRichTextViewer for moving view area down if the text in |
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422 // text field does not fit on the screen. |
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423 |
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424 // Fetch the position info about the first visible field in field set: |
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425 CESMRField* field; |
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426 if( iTopVisibleIndex != KErrNotFound ) |
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427 { |
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428 field = iFactory.Field( iTopVisibleIndex ); |
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429 } |
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430 else |
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431 { |
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432 field = iFactory.Field( iFactory.Count() - 1 ); |
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433 } |
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434 TRect rect( field->Rect() ); |
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435 |
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436 // check whether the first field is visible, if not, let's |
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437 // check should we scroll less than needed to get the first |
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438 // field shown. |
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439 if ( rect.iTl.iY + aAmount > Rect().iTl.iY ) |
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440 { |
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441 aAmount = Rect().iTl.iY - rect.iTl.iY + KVerticalScrollMargin; |
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442 } |
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443 else if ( rect.iTl.iY == Rect().iTl.iY ) |
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444 { |
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445 // field already visible, do not scroll. |
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446 aAmount = 0; |
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447 } |
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448 |
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449 // Do the view scrolling if needed: |
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450 if ( aAmount ) |
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451 { |
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452 ScrollItemsDown( aAmount ); |
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453 UpdateFocusPosition(); |
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454 //UpdateScrollBar(); |
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455 DrawDeferred(); |
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456 } |
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457 } |
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458 |
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459 // --------------------------------------------------------------------------- |
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460 // CMRListPane::MoveListAreaUpL |
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461 // --------------------------------------------------------------------------- |
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462 // |
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463 void CMRListPane::MoveListAreaUpL( TInt aAmount ) |
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464 { |
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465 FUNC_LOG; |
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466 // Fetch the position information about currently focused field: |
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467 CESMRField* field = iFactory.Field( iFocus ); |
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468 TRect rect( field->Rect() ); |
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469 |
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470 // check whether the scroll pixels should be less than normal |
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471 // scroll sequence to let the field bottom to be placed at |
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472 // the bottom of view rect. |
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473 if ( rect.iBr.iY - aAmount < Rect().iBr.iY ) |
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474 { |
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475 aAmount = rect.iBr.iY - Rect().iBr.iY + KVerticalScrollMargin; |
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476 } |
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477 else if ( rect.iBr.iY + aAmount == Rect().iBr.iY ) |
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478 { |
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479 // field already visible, do not scroll. |
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480 aAmount = 0; |
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481 } |
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482 |
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483 // do the scrolling if needed: |
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484 if ( aAmount > 0 ) |
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485 { |
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486 // if the focus is on last |
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487 ScrollItemsUp( aAmount ); |
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488 UpdateFocusPosition(); |
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489 //UpdateScrollBar(); |
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490 DrawDeferred(); |
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491 } |
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492 } |
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493 |
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494 // --------------------------------------------------------------------------- |
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495 // CMRListPane::ListHeight |
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496 // --------------------------------------------------------------------------- |
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497 // |
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498 TInt CMRListPane::ListHeight() |
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499 { |
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500 FUNC_LOG; |
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501 return iSize.iHeight; |
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502 } |
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503 |
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504 // --------------------------------------------------------------------------- |
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505 // CMRListPane::IsFieldBottomVisible |
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506 // --------------------------------------------------------------------------- |
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507 // |
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508 TBool CMRListPane::IsFieldBottomVisible() |
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509 { |
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510 // Fetch the position information about currently focused field: |
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511 CESMRField* field = iFactory.Field( iFocus ); |
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512 TBool ret( EFalse ); |
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513 if ( field->Rect().iBr.iY <= Rect().iBr.iY ) |
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514 { |
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515 ret = ETrue; |
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516 } |
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517 |
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518 return ret; |
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519 } |
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520 |
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521 // --------------------------------------------------------------------------- |
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522 // CMRListPane::MoveFocusUpL |
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523 // --------------------------------------------------------------------------- |
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524 // |
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525 TKeyResponse CMRListPane::MoveFocusUpL() |
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526 { |
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527 TInt ind( iFocus ); |
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528 |
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529 // search next visible focus item |
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530 while ( ind > 0 ) |
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531 { |
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532 CESMRField* field = iFactory.Field( --ind ); |
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533 |
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534 if ( !field->IsNonFocusing() ) |
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535 { |
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536 field = iFactory.Field( ind ); |
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537 |
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538 CESMRField* focusedField = iFactory.Field( iFocus ); |
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539 if ( field->IsVisible() ) |
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540 { |
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541 TBool canLoseFocus( |
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542 focusedField->OkToLoseFocusL( field->FieldId() ) ); |
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543 |
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544 if ( canLoseFocus ) |
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545 { |
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546 iFocus = ind; |
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547 |
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548 // update focus index and scroll the item visible |
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549 focusedField->SetOutlineFocusL( EFalse ); |
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550 // This call changes the text color of previously |
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551 // focused field |
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552 focusedField->SetFocus( EFalse ); |
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553 field->SetOutlineFocusL( ETrue ); |
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554 // This call changes the text color of focused field |
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555 field->SetFocus( ETrue ); |
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556 |
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557 ScrollItemVisible( iFocus ); |
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558 } |
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559 return EKeyWasConsumed; |
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560 } |
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561 } |
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562 } |
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563 return EKeyWasNotConsumed; |
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564 } |
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565 |
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566 // --------------------------------------------------------------------------- |
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567 // CMRListPane::MoveFocusDownL |
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568 // --------------------------------------------------------------------------- |
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569 // |
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570 TKeyResponse CMRListPane::MoveFocusDownL() |
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571 { |
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572 TInt ind( iFocus ); |
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573 |
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574 // start searching next possible focus item |
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575 TInt maxItemIndex = iFactory.Count() - 1; |
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576 |
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577 while ( ind < maxItemIndex ) |
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578 { |
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579 // only visible and focusable items can be focused |
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580 CESMRField* field = iFactory.Field( ++ind ); |
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581 |
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582 if ( field->IsVisible() && !field->IsNonFocusing() ) |
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583 { |
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584 CESMRField* focusedField = iFactory.Field( iFocus ); |
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585 |
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586 TBool canLoseFocus( |
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587 focusedField->OkToLoseFocusL( field->FieldId() ) ); |
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588 |
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589 // check it its ok for the old focus item to lose focus |
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590 if ( canLoseFocus ) |
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591 { |
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592 iFocus = ind; |
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593 |
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594 // update focus index and scroll the item visible |
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595 focusedField->SetOutlineFocusL( EFalse ); |
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596 // This call changes the text color of previously |
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597 // focused field |
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598 focusedField->SetFocus( EFalse ); |
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599 field->SetOutlineFocusL( ETrue ); |
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600 // This call changes the text color of focused field |
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601 field->SetFocus( ETrue ); |
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602 |
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603 ScrollItemVisible( iFocus ); |
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604 } |
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605 return EKeyWasConsumed; |
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606 } |
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607 } |
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608 return EKeyWasNotConsumed; |
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609 } |
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610 |
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611 // --------------------------------------------------------------------------- |
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612 // CMRListPane::MoveFocusL |
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613 // --------------------------------------------------------------------------- |
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614 // |
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615 TBool CMRListPane::MoveFocusL(TInt aNextFieldIndex) |
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616 { |
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617 // start searching next possible focus item |
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618 TInt maxItemIndex = iFactory.Count() - 1; |
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619 |
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620 CESMRField* focusedField = iFactory.Field( iFocus ); |
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621 |
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622 // only visible and focusable items can be focused |
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623 CESMRField* field = iFactory.Field( aNextFieldIndex ); |
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624 |
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625 if ( field->IsVisible() && !field->IsNonFocusing() ) |
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626 { |
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627 TBool canLoseFocus( |
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628 focusedField->OkToLoseFocusL( field->FieldId() ) ); |
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629 |
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630 // check it its ok for the old focus item to lose focus |
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631 if ( canLoseFocus ) |
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632 { |
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633 // tactile feedback if touch |
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634 if ( AknLayoutUtils::PenEnabled() ) |
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635 { |
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636 MTouchFeedback* feedback = MTouchFeedback::Instance(); |
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637 if ( feedback ) |
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638 { |
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639 feedback->InstantFeedback( this, ETouchFeedbackBasic ); |
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640 } |
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641 } |
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642 |
|
643 iFocus = aNextFieldIndex; |
|
644 |
|
645 // update focus index and scroll the item visible |
|
646 focusedField->SetOutlineFocusL( EFalse ); |
|
647 // This call changes the text color of previously |
|
648 // focused field |
|
649 focusedField->SetFocus( EFalse ); |
|
650 field->SetOutlineFocusL( ETrue ); |
|
651 // This call changes the text color of focused field |
|
652 field->SetFocus( ETrue ); |
|
653 DrawDeferred(); |
|
654 } |
|
655 return ETrue; // operation succeed |
|
656 } |
|
657 return EFalse; |
|
658 } |
|
659 |
|
660 // --------------------------------------------------------------------------- |
|
661 // CMRListPane::LayoutField |
|
662 // --------------------------------------------------------------------------- |
|
663 // |
|
664 void CMRListPane::LayoutField( CESMRField& aField, |
|
665 const TPoint& aTl ) |
|
666 { |
|
667 TSize size( aField.MinimumSize() ); |
|
668 if ( aField.IsExpandable() ) |
|
669 { |
|
670 size.iHeight = aField.ExpandedHeight(); |
|
671 } |
|
672 aField.SetPosition( aTl ); |
|
673 aField.SetSize( size ); |
|
674 } |
|
675 |
|
676 // --------------------------------------------------------------------------- |
|
677 // CMRListPane::MoveFields |
|
678 // --------------------------------------------------------------------------- |
|
679 // |
|
680 void CMRListPane::MoveFields( TInt aIndex, |
|
681 TPoint& aTl ) |
|
682 { |
|
683 const TInt count( iFactory.Count() ); |
|
684 |
|
685 for ( TInt i = aIndex; i < count; ++i ) |
|
686 { |
|
687 CESMRField* field = iFactory.Field( i ); |
|
688 |
|
689 if ( field->IsVisible() ) |
|
690 { |
|
691 field->SetPosition( aTl ); |
|
692 |
|
693 aTl.iY += field->Size().iHeight; |
|
694 } |
|
695 } |
|
696 } |
|
697 |
|
698 // --------------------------------------------------------------------------- |
|
699 // CMRListPane::DoSetFocusL |
|
700 // --------------------------------------------------------------------------- |
|
701 // |
|
702 void CMRListPane::DoSetFocusL( TInt aFocus ) |
|
703 { |
|
704 TInt count( iFactory.Count() ); |
|
705 aFocus = Max( 0, Min( aFocus, count - 1 ) ); |
|
706 |
|
707 if ( aFocus != iFocus ) |
|
708 { |
|
709 // Get current focused field |
|
710 CESMRField* old = iFactory.Field( iFocus ); |
|
711 |
|
712 // Get next focused field |
|
713 CESMRField* field = iFactory.Field( aFocus ); |
|
714 while ( aFocus < count && !field->IsVisible() ) |
|
715 { |
|
716 field = iFactory.Field( aFocus++ ); |
|
717 } |
|
718 |
|
719 if ( !field->IsVisible() ) |
|
720 { |
|
721 aFocus = iFocus - 1; |
|
722 while ( aFocus > 0 && !field->IsVisible() ) |
|
723 { |
|
724 field = iFactory.Field( aFocus-- ); |
|
725 } |
|
726 } |
|
727 |
|
728 ASSERT( field->IsVisible() ); |
|
729 |
|
730 // Remove focus from old |
|
731 iFocus = aFocus; |
|
732 // update focus index and scroll the item visible |
|
733 old->SetOutlineFocusL( EFalse ); |
|
734 // Change the text color of previously focused field |
|
735 old->SetFocus( EFalse ); |
|
736 field->SetOutlineFocusL( ETrue ); |
|
737 // This call changes the text color of focused field |
|
738 field->SetFocus( ETrue ); |
|
739 } |
|
740 } |
|
741 |
|
742 // --------------------------------------------------------------------------- |
|
743 // CMRListPane::ScrollItemVisible |
|
744 // --------------------------------------------------------------------------- |
|
745 // |
|
746 void CMRListPane::ScrollItemVisible( TInt aInd ) |
|
747 { |
|
748 FUNC_LOG; |
|
749 CESMRField* field = NULL; |
|
750 if ( aInd == KErrNotFound ) |
|
751 { |
|
752 field = FocusedItem(); |
|
753 } |
|
754 else |
|
755 { |
|
756 field = iFactory.Field( aInd ); |
|
757 } |
|
758 |
|
759 ASSERT( field ); |
|
760 |
|
761 TRect rect( field->Rect() ); |
|
762 |
|
763 // move all items upwards |
|
764 TInt bottomRightY = Rect().iBr.iY; |
|
765 |
|
766 |
|
767 TInt fieldUpper(0); |
|
768 TInt fieldLower(0); |
|
769 field->GetMinimumVisibleVerticalArea( fieldUpper, fieldLower ); |
|
770 |
|
771 // desired position below view rect: |
|
772 if ( rect.iTl.iY + fieldLower > Rect().iBr.iY ) |
|
773 { |
|
774 // field rect Y position related to view rect: |
|
775 TInt fieldRelYPos = rect.iTl.iY - Size().iHeight; |
|
776 TInt px = fieldRelYPos + fieldLower; |
|
777 |
|
778 // if focus on first or last field: add margin height to |
|
779 // scroll amount. |
|
780 if ( iFocus == 0 || iFocus == iFactory.Count()-1 ) |
|
781 { |
|
782 px += 2 * KVerticalScrollMargin; |
|
783 } |
|
784 |
|
785 ScrollItemsUp( px ); |
|
786 } |
|
787 |
|
788 // move all items downwards. |
|
789 TInt topLeftY = Rect().iTl.iY; |
|
790 |
|
791 if ( rect.iBr.iY - (rect.Height() - fieldUpper ) < topLeftY ) |
|
792 { |
|
793 TInt fieldRelYPos = topLeftY - rect.iBr.iY; |
|
794 TInt px = fieldRelYPos + ( rect.Height() - fieldUpper); |
|
795 |
|
796 // if focus on first or last field: add margin height to |
|
797 // scroll amount. |
|
798 if ( iFocus == 0 || iFocus == iFactory.Count()-1 ) |
|
799 { |
|
800 px += KVerticalScrollMargin; |
|
801 } |
|
802 |
|
803 ScrollItemsDown( px ); |
|
804 } |
|
805 |
|
806 UpdateFocusPosition();//UpdateScrollBar(); |
|
807 DrawDeferred(); |
|
808 } |
|
809 |
|
810 // --------------------------------------------------------------------------- |
|
811 // CMRListPane::UpdateScrollBar |
|
812 // --------------------------------------------------------------------------- |
|
813 // |
|
814 void CMRListPane::UpdateScrollBar() |
|
815 { |
|
816 FUNC_LOG; |
|
817 // Scroll span is the size of the scrolled list, |
|
818 // including the items that doesn't fit in the screen |
|
819 TInt spanSize( 0 ); |
|
820 TInt hidden( 0 ); |
|
821 const TInt count(iFactory.Count()); |
|
822 for ( TInt i(0); i < count; i++ ) |
|
823 { |
|
824 CESMRField* field = iFactory.Field( i ); |
|
825 if ( field->IsVisible() ) |
|
826 { |
|
827 TRect rect( field->Rect() ); |
|
828 spanSize += rect.Height(); |
|
829 // Check if the field's top Y-position is hidden. |
|
830 if ( rect.iTl.iY < 0 ) |
|
831 { |
|
832 // whole field is hidden |
|
833 if ( rect.iBr.iY < 0 ) |
|
834 { |
|
835 hidden += rect.Height(); |
|
836 } |
|
837 // partly hidden: |
|
838 else |
|
839 { |
|
840 hidden += Abs( rect.iTl.iY ); |
|
841 } |
|
842 } |
|
843 } |
|
844 } |
|
845 |
|
846 iScrollModel.SetScrollSpan( spanSize ); |
|
847 iScrollModel.SetWindowSize( iSize.iHeight ); |
|
848 iScrollModel.SetFocusPosition( hidden ); |
|
849 |
|
850 } |
|
851 |
|
852 // --------------------------------------------------------------------------- |
|
853 // CMRListPane::ScrollItemsUp |
|
854 // --------------------------------------------------------------------------- |
|
855 // |
|
856 void CMRListPane::ScrollItemsUp( TInt aPx ) |
|
857 { |
|
858 FUNC_LOG; |
|
859 TInt count( iFactory.Count() ); |
|
860 for ( TInt i = 0; i < count; ++i ) |
|
861 { |
|
862 CESMRField* field = iFactory.Field(i); |
|
863 if ( field->IsVisible() ) |
|
864 { |
|
865 TPoint pos( field->Position() ); |
|
866 pos.iY -= aPx; |
|
867 if ( i == iTopVisibleIndex && pos.iY < 0 ) |
|
868 { |
|
869 iTopVisibleIndex = KErrNotFound; |
|
870 } |
|
871 else if ( iTopVisibleIndex == KErrNotFound && pos.iY >= 0 ) |
|
872 { |
|
873 iTopVisibleIndex = i; |
|
874 } |
|
875 field->SetPosition( pos ); |
|
876 } |
|
877 } |
|
878 } |
|
879 |
|
880 // --------------------------------------------------------------------------- |
|
881 // CMRListPane::ScrollItemsDown |
|
882 // --------------------------------------------------------------------------- |
|
883 // |
|
884 void CMRListPane::ScrollItemsDown( TInt aPx ) |
|
885 { |
|
886 FUNC_LOG; |
|
887 TInt count( iFactory.Count() ); |
|
888 for ( TInt i = 0; i < count; ++i ) |
|
889 { |
|
890 CESMRField* field = iFactory.Field( i ); |
|
891 if ( field->IsVisible() ) |
|
892 { |
|
893 TPoint pos( field->Position() ); |
|
894 pos.iY += aPx; |
|
895 if ( pos.iY >= 0 && ( i < iTopVisibleIndex || iTopVisibleIndex == KErrNotFound ) ) |
|
896 { |
|
897 iTopVisibleIndex = i; |
|
898 } |
|
899 field->SetPosition( pos ); |
|
900 } |
|
901 } |
|
902 } |
|
903 |
|
904 // --------------------------------------------------------------------------- |
|
905 // CMRListPane::ScrollView |
|
906 // --------------------------------------------------------------------------- |
|
907 // |
|
908 void CMRListPane::ScrollView( TInt aAmount ) |
|
909 { |
|
910 FUNC_LOG; |
|
911 |
|
912 if ( aAmount > 0 ) |
|
913 { |
|
914 // move list up |
|
915 ScrollItemsUp( aAmount ); |
|
916 UpdateFocusPosition(); |
|
917 DrawDeferred(); |
|
918 } |
|
919 else if ( aAmount < 0 ) |
|
920 { |
|
921 // move list down |
|
922 ScrollItemsDown( -aAmount ); |
|
923 UpdateFocusPosition(); |
|
924 DrawDeferred(); |
|
925 } |
|
926 } |
|
927 |
|
928 |
|
929 // --------------------------------------------------------------------------- |
|
930 // CMRListPane::UpdateFocusPosition |
|
931 // --------------------------------------------------------------------------- |
|
932 // |
|
933 void CMRListPane::UpdateFocusPosition() |
|
934 { |
|
935 TInt focusPos = 0; |
|
936 TInt count = iFactory.Count(); |
|
937 for ( TInt i = 0; i < count; ++i ) |
|
938 { |
|
939 CESMRField* field = iFactory.Field( i ); |
|
940 if ( field->IsVisible() ) |
|
941 { |
|
942 TRect rect( field->Rect() ); |
|
943 // Check if the field's top is above scroll area origo. |
|
944 if ( rect.iTl.iY < 0 ) |
|
945 { |
|
946 // Whole field is above origo |
|
947 if ( rect.iBr.iY < 0 ) |
|
948 { |
|
949 focusPos += rect.Height(); |
|
950 } |
|
951 // Part of the field is above origo |
|
952 else |
|
953 { |
|
954 focusPos += Abs( rect.iTl.iY ); |
|
955 } |
|
956 } |
|
957 else |
|
958 { |
|
959 // Rest of the fields are below scroll area origo |
|
960 break; |
|
961 } |
|
962 } |
|
963 } |
|
964 |
|
965 iScrollModel.SetFocusPosition( focusPos ); |
|
966 } |
|
967 |
|
968 |
|
969 // ----------------------------------------------------------------------------- |
|
970 // CMRListPane::GetViewCenterPosition |
|
971 // ----------------------------------------------------------------------------- |
|
972 // |
|
973 TPoint CMRListPane::GetViewCenterPosition() const |
|
974 { |
|
975 const TInt count( iFactory.Count() ); |
|
976 TInt topFieldYPos( 0 ); |
|
977 for ( TInt i = 0; i < count; i++ ) |
|
978 { |
|
979 CESMRField* field = iFactory.Field( i ); |
|
980 |
|
981 if ( field->IsVisible() ) |
|
982 { |
|
983 topFieldYPos = field->Position().iY; |
|
984 break; |
|
985 } |
|
986 } |
|
987 TInt centerX = iSize.iWidth / 2; |
|
988 TInt visibleHeight = iSize.iHeight; |
|
989 |
|
990 TInt centerY = visibleHeight / 2 - topFieldYPos; |
|
991 |
|
992 |
|
993 return TPoint( centerX, centerY ); |
|
994 } |
|
995 |
|
996 |
|
997 // ----------------------------------------------------------------------------- |
|
998 // CMRListPane::HandlePointerEventL |
|
999 // ----------------------------------------------------------------------------- |
|
1000 // |
|
1001 void CMRListPane::HandlePointerEventL( const TPointerEvent& aPointerEvent ) |
|
1002 { |
|
1003 if ( aPointerEvent.iType == TPointerEvent::EButton1Down ) |
|
1004 { |
|
1005 TInt count = iFactory.Count(); |
|
1006 for ( TInt i = 0; i < count; ++i ) |
|
1007 { |
|
1008 CESMRField* field = static_cast<CESMRField*>(iFactory.Field( i ) ); |
|
1009 TRect r = field->Rect(); |
|
1010 TBool tapped = field->Rect().Contains( aPointerEvent.iPosition ); |
|
1011 if (tapped && field->IsVisible() && !field->IsFocused() ) |
|
1012 { |
|
1013 MoveFocusL( i ); |
|
1014 break; |
|
1015 } |
|
1016 } |
|
1017 } |
|
1018 // here some fields can further adjust their state (for example, CESMRResponseField has sub-fields) |
|
1019 CCoeControl::HandlePointerEventL(aPointerEvent); |
|
1020 } |
|
1021 // End of file |
|
1022 |