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1 /* |
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2 * Copyright (c) 2003-2008 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: Implements the Form LCDUI component. |
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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 //RD_SCALABLE_UI definition |
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20 #include <bldvariant.hrh> |
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21 // using CEikScrollBarFrame API for iSBFrame |
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22 #include <eiksbfrm.h> |
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23 |
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24 // API used for retrieving layout for initial alignment (in ConstructL) |
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25 #include <centralrepository.h> |
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26 // constants used in retrieving layout for initial alignment (in ConstructL) |
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27 #include <AvkonInternalCRKeys.h> |
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28 |
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29 // control context that provides a layout background |
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30 #include <AknsListBoxBackgroundControlContext.h> |
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31 // highlight background |
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32 #include <AknsFrameBackgroundControlContext.h> |
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33 // API for text formatting used in DrawNoDataStringL function |
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34 #include <AknBidiTextUtils.h> |
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35 |
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36 #include "CMIDForm.h" |
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37 #include "CMIDFormRow.h" |
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38 // API for iDisplayable |
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39 #include "CMIDDisplayable.h" |
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40 #include "CMIDItem.h" |
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41 #include "CMIDControlItem.h" |
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42 #include "CMIDGaugeItem.h" |
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43 #include "CMIDImageItem.h" |
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44 #include "CMIDStringItem.h" |
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45 // CMIDLabelContainerItem API used to obtain CMIDStringItem item |
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46 #include "CMIDLabelContainerItem.h" |
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47 #include "CMIDTextFieldItem.h" |
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48 #include "CMIDChoiceGroupItem.h" |
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49 #include "CMIDSpacer.h" |
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50 #include "CMIDCustomItem.h" |
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51 #include "CMIDDateFieldItem.h" |
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52 #include "CMIDComponentFactory.h" |
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53 #include "CMIDUtils.h" |
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54 #include "CMIDItemLabel.h" |
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55 #include "CMIDTicker.h" |
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56 #include "CMIDFont.h" |
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57 #include "CMIDPopupNoteController.h" |
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58 // Kinetic scrolling |
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59 #include "CMIDFormPhysics.h" |
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60 |
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61 #include <applayout.cdl.h> |
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62 // LAF |
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63 #include <aknlayoutscalable_avkon.cdl.h> |
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64 // LAF |
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65 #include <layoutmetadata.cdl.h> |
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66 |
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67 // Api for skin layout |
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68 #include <skinlayout.cdl.h> |
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69 using namespace SkinLayout; |
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70 |
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71 #include <j2me/jdebug.h> |
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72 |
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73 #undef TRAP_INSTRUMENTATION_LEAVE |
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74 #define TRAP_INSTRUMENTATION_LEAVE(aResult) DEBUG_INT2("In CMIDForm.cpp, trapped method was called at line %D and got exception %D", __LINE__, aResult); |
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75 |
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76 #ifdef RD_SCALABLE_UI_V2 |
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77 /** Dividers used when the the scroll amount is calculated*/ |
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78 const TInt KScrollAmountDivider = 4; |
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79 const TInt KScrollAmountDividerForThumbDrag = 10; |
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80 |
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81 /** Interval for scrolling when stylus is dragged outside the form and held down */ |
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82 const TInt KScrollInterval = 100000; // 0,1 sec |
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83 #endif //RD_SCALABLE_UI_V2 |
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84 |
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85 /** The minimum amount to scroll */ |
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86 const TInt KMinScrollAmount = 40; |
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87 |
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88 /** The timeout in microseconds for visual updates. When items are added or removed |
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89 or modified, the form is not redrawn immediately but only after this timeout. This way |
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90 if more items are being added or removed or changed we reduce the number of redraws. |
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91 */ |
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92 const TInt KLayoutTimeout = 60000; //60 msecs |
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93 |
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94 /** If layout has been requested for a period longer than the cap then perform layout |
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95 even if the midlet is still performing form insert/delete operations. */ |
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96 const TInt KLayoutCap = 1000000; // 1 sec |
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97 |
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98 /////////////////////////////////////////////////////////////////////////////////////////////////// |
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99 // MMIDForm interface |
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100 /////////////////////////////////////////////////////////////////////////////////////////////////// |
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101 |
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102 /** |
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103 * Add items list. Note: this is no longer called by framework!! |
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104 */ |
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105 void CMIDForm::SetAllItemsL(const RArray<MMIDItem*>& aItems) |
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106 { |
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107 DEBUG("CMIDForm::SetAllItemsL"); |
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108 |
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109 ASSERT(iItems.Count() == 0); |
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110 // |
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111 TInt count = aItems.Count(); |
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112 for (TInt i=0; i<count; i++) |
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113 { |
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114 User::LeaveIfError(iItems.Append(aItems[i])); |
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115 CMIDControlItem& ci = ControlItem(i); |
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116 |
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117 AddItemToFormL(ci); |
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118 ci.MakeVisible(ETrue); |
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119 } |
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120 |
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121 RequestLayoutL(); |
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122 } |
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123 |
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124 /** |
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125 * Replaces an item. Keeps the same item focused which had focus before, |
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126 * and if that's the one that this is replacing, then this will be focused |
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127 * if possible. |
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128 */ |
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129 void CMIDForm::SetItemL(MMIDItem& aItem,TInt aIndex) |
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130 { |
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131 DEBUG("CMIDForm::SetItemL"); |
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132 |
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133 CMIDControlItem& oldCi = ControlItem(aIndex); |
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134 RemoveItemFromForm(oldCi); |
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135 |
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136 iItems[aIndex] = &aItem; |
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137 CMIDControlItem& ci = ControlItem(aIndex); |
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138 AddItemToFormL(ci); |
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139 |
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140 ci.MakeVisible(ETrue); |
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141 |
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142 if (iFocused == aIndex) |
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143 { |
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144 iDisplayable.MenuHandler()->HideMenuIfVisible(); |
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145 |
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146 if (ci.IsSelectable()) |
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147 { |
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148 SetFocusedItem(aIndex); |
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149 } |
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150 else |
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151 { |
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152 SetFocusedItem(KErrNotFound); |
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153 } |
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154 } |
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155 |
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156 RequestLayoutL(); |
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157 } |
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158 |
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159 /** |
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160 * Inserts a new Item. |
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161 */ |
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162 void CMIDForm::InsertItemL(MMIDItem& aItem, TInt aIndex) |
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163 { |
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164 DEBUG("CMIDForm::InsertItemL"); |
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165 |
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166 User::LeaveIfError(iItems.Insert(&aItem,aIndex)); |
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167 CMIDControlItem& ci = ControlItem(aIndex); |
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168 |
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169 AddItemToFormL(ci); |
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170 ci.MakeVisible(ETrue); |
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171 // if insert item then index of pointed control is increase |
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172 if (aIndex <= iIndexPointedControl) |
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173 { |
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174 iIndexPointedControl++; |
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175 } |
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176 |
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177 // If there isn't any focused item yet, we have to set focus |
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178 // to first item which is focusable. Once the item has focus, |
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179 // we can skip this step. |
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180 if (iFocused == KErrNotFound) |
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181 { |
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182 SetFocusedItem(ci.IsSelectable() ? aIndex : KErrNotFound); |
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183 } |
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184 else if (aIndex <= iFocused) |
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185 { |
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186 // If new item is inserted to Form above the current item, |
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187 // index must increase |
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188 iFocused++; |
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189 } |
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190 |
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191 RequestLayoutL(); |
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192 } |
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193 |
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194 void CMIDForm::DeleteItemL(TInt aIndex) |
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195 { |
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196 DEBUG("CMIDForm::DeleteItemL"); |
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197 |
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198 TBool updateFocused = EFalse; |
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199 // if delete item then index of pointed control is decrease |
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200 if (iIndexPointedControl > aIndex) |
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201 { |
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202 iIndexPointedControl--; |
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203 } |
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204 else |
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205 // if delete item is same as index of pointed control then index is set to not active |
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206 { |
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207 if (iIndexPointedControl == aIndex) |
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208 { |
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209 iIndexPointedControl = -1; |
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210 } |
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211 } |
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212 if (iFocused > aIndex) |
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213 { |
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214 iFocused--; |
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215 } |
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216 else if (iFocused == aIndex) |
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217 { |
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218 iDisplayable.MenuHandler()->HideMenuIfVisible(); |
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219 ReplaceFocusedItem(); |
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220 updateFocused = ETrue; |
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221 } |
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222 |
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223 CMIDControlItem& ci = ControlItem(aIndex); |
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224 RemoveItemFromForm(ci); |
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225 if (&ci == iPointedControl) |
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226 { |
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227 iPointedControl = NULL; |
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228 } |
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229 |
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230 iItems.Remove(aIndex); |
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231 |
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232 if (iFocused != KErrNotFound && updateFocused) |
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233 { |
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234 iFocused--; |
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235 } |
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236 |
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237 RequestLayoutL(); |
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238 } |
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239 |
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240 void CMIDForm::DeleteAllItemsL() |
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241 { |
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242 DEBUG("CMIDForm::DeleteAllItemsL"); |
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243 iDisplayable.MenuHandler()->HideMenuIfVisible(); |
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244 SetFocusedItem(KErrNotFound); |
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245 |
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246 TInt itemCount = iItems.Count(); |
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247 for (TInt i=0; i < itemCount; i++) |
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248 { |
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249 CMIDControlItem& ci = ControlItem(i); |
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250 RemoveItemFromForm(ci); |
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251 } |
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252 iItems.Reset(); |
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253 |
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254 iScroll = 0; |
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255 // if delete all then index of pointed control is set to not active |
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256 iIndexPointedControl = -1; |
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257 |
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258 iPointedControl = NULL; |
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259 RequestLayoutL(); |
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260 } |
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261 |
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262 /** |
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263 * Called when the item has changed its appearance in some way. |
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264 */ |
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265 void CMIDForm::RefreshItemL(TInt aIndex) |
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266 { |
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267 DEBUG("CMIDForm::RefreshItemL"); |
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268 |
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269 if (aIndex != KErrNotFound) |
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270 { |
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271 RequestLayoutL(); |
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272 } |
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273 } |
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274 |
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275 /** |
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276 * Returns whether the item is actually visible to the user. Must therefore take into |
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277 * account the visibility of the entire form, and whether the specific item is scrolled |
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278 * in/out of the viewable area. |
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279 */ |
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280 TBool CMIDForm::IsItemVisible(TInt aIndex) |
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281 { |
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282 DEBUG("CMIDForm::IsItemVisible"); |
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283 |
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284 CMIDControlItem& control = ControlItem(aIndex); |
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285 |
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286 if ((control.Position().iY > Height()) || |
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287 ((control.Position().iY + control.Size().iHeight) < 0)) |
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288 { |
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289 return EFalse; |
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290 } |
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291 return ETrue; |
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292 } |
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293 |
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294 /** |
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295 * Called prior to the Form itself being made the current Displayable. |
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296 * It provides an opportunity to prepare the form such that this item will |
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297 * be visible and focused when the form is eventually made current |
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298 */ |
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299 void CMIDForm::SetCurrentItemL(TInt aIndex) |
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300 { |
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301 DEBUG("CMIDForm::SetCurrentItemL"); |
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302 |
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303 // If it is pending request for layout, than layout now. |
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304 if (LayoutPending()) |
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305 { |
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306 LayoutAndDrawL(); |
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307 } |
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308 |
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309 // Set focus of item to aIndex and scroll to it. |
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310 SetFocusedItem(aIndex); |
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311 |
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312 } |
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313 |
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314 |
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315 // |
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316 // End of MMIDForm interface |
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317 // |
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318 |
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319 TInt CMIDForm::CountComponentControls() const |
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320 { |
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321 return iRows.Count(); |
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322 } |
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323 |
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324 CCoeControl* CMIDForm::ComponentControl(TInt aIndex) const |
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325 { |
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326 return iRows[aIndex]; |
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327 } |
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328 |
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329 TKeyResponse CMIDForm::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType) |
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330 { |
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331 DEBUG("< CMIDForm::OfferKeyEventL"); |
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332 |
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333 TBool isArrowKey = (aKeyEvent.iCode == EKeyDownArrow || aKeyEvent.iCode == EKeyUpArrow || |
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334 aKeyEvent.iCode == EKeyLeftArrow || aKeyEvent.iCode == EKeyRightArrow); |
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335 |
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336 if (iFocused != KErrNotFound) |
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337 { |
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338 CMIDControlItem& controlItem = ControlItem(iFocused); |
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339 TRect controlRect = GetControlRect(iFocused); |
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340 TBool visible = RectPartiallyVisible(controlRect); |
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341 |
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342 #ifdef RD_JAVA_S60_RELEASE_9_2 |
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343 TInt numItemCommands = controlItem.CommandList()->Count(); |
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344 |
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345 // If focused form item does not have any commands, |
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346 // and select key was pressed try to show screen\help option menu. |
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347 // ChoiceGroup and DateField handles this case separately. |
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348 // Gauge enter key is also handled here, |
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349 // so it would behave the same way as selection key. |
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350 if (numItemCommands == 0 && aType == EEventKey && |
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351 controlItem.Type() != MMIDComponent::EChoiceGroup && |
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352 controlItem.Type() != MMIDComponent::EDateField && |
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353 (aKeyEvent.iScanCode == EStdKeyDevice3 || |
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354 (aKeyEvent.iScanCode == EStdKeyEnter && |
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355 controlItem.Type() == MMIDComponent::EGauge))) |
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356 { |
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357 iDisplayable.ShowScreenOrHelpOptionsMenuL(); |
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358 } |
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359 #endif // RD_JAVA_S60_RELEASE_9_2 |
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360 |
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361 // arrow key events are not sent to the hidden focused item |
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362 if ((visible || !isArrowKey) && |
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363 controlItem.OfferKeyEventL(aKeyEvent,aType) == EKeyWasConsumed) |
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364 { |
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365 DEBUG("CMIDForm::OfferKeyEventL - out after item consumed key"); |
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366 |
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367 #ifdef RD_SCALABLE_UI_V2 |
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368 // If focused TextField or DateField item is at least partly out of |
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369 // Form viewport, then key event (excluding arrow keys and soft keys) |
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370 // scrolls the item completely visible. This situation |
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371 // is possible when scrolling has been done with scrollbar. |
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372 |
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373 // Soft keys and arrow keys are ignored. Filtering must be done comparing |
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374 // scan codes because the aEventType.iCode is not available for all key presses. |
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375 TBool ignoreKey = (aKeyEvent.iScanCode == EStdKeyRightArrow || |
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376 aKeyEvent.iScanCode == EStdKeyUpArrow || |
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377 aKeyEvent.iScanCode == EStdKeyDownArrow || |
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378 aKeyEvent.iScanCode == EStdKeyLeftArrow || |
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379 aKeyEvent.iScanCode == EStdKeyDevice0 || |
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380 aKeyEvent.iScanCode == EStdKeyDevice1 || |
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381 aKeyEvent.iScanCode == EStdKeyDevice3); |
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382 |
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383 if ((controlItem.Type() == MMIDComponent::ETextField || |
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384 controlItem.Type() == MMIDComponent::EDateField) && |
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385 !RectFullyVisible(controlRect) && !ignoreKey) |
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386 { |
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387 // Scroll up if controlItem is above the Form viewport. |
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388 // Otherwise scroll down. |
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389 if (controlRect.iTl.iY < 0) |
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390 { |
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391 ScrollToFocused(EUp, ETrue); |
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392 } |
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393 else |
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394 { |
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395 ScrollToFocused(EDown, ETrue); |
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396 } |
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397 |
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398 } |
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399 #endif // RD_SCALABLE_UI_V2 |
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400 |
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401 return EKeyWasConsumed; |
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402 } |
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403 } |
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404 |
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405 DEBUG("CMIDForm::OfferKeyEventL - got chance to scroll"); |
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406 |
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407 if ((aType == EEventKey) && isArrowKey && (iItems.Count() > 0)) |
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408 { |
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409 DEBUG("CMIDForm::OfferKeyEventL - about to call Traverse"); |
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410 |
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411 Traverse(ConvertKeyToDirection(aKeyEvent.iCode)); |
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412 |
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413 DEBUG("CMIDForm::OfferKeyEventL - out after Traverse"); |
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414 return EKeyWasConsumed; |
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415 } |
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416 |
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417 // msk: this is needed if MSK is not enabled |
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418 if ((aType == EEventKey) && |
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419 ((aKeyEvent.iScanCode == EStdKeyDevice3) || (aKeyEvent.iCode == EKeyEnter)) |
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420 ) |
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421 { |
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422 if (!DoDefaultCommand()) |
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423 { |
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424 iDisplayable.ShowOkOptionsMenuL(); |
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425 } |
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426 |
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427 DEBUG("CMIDForm::OfferKeyEventL - out after default command or ok menu"); |
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428 return EKeyWasConsumed; |
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429 } |
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430 // end msk |
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431 DEBUG("> CMIDForm::OfferKeyEventL"); |
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432 return EKeyWasNotConsumed; |
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433 } |
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434 |
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435 /** Handle a focus change. Make sure there is no layout pending and if there is |
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436 one then do it, see TrappedLayoutAndDraw(). This is because when there is a layout |
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437 pending we are in a temporary inconsistent phase with no rows and the rows are the |
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438 intermediary to the items via the CountComponentControl() and ComponentControl() calls. |
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439 Then pass on focus to our children according to the value stored in iFocused. Finally |
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440 update the scroll bars if gaining focus and draw. */ |
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441 void CMIDForm::FocusChanged(TDrawNow /*aDrawNow*/) |
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442 { |
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443 DEBUG("CMIDForm::FocusChanged"); |
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444 |
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445 TrappedLayoutAndDraw(ETrue); |
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446 |
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447 TInt i = -1; |
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448 TInt itemCount = iItems.Count(); |
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449 while (++i < itemCount) |
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450 { |
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451 if (i == iFocused) |
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452 { |
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453 ControlItem(iFocused).SetFocus(IsFocused()); |
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454 } |
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455 else |
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456 { |
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457 ControlItem(i).SetFocus(EFalse); |
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458 } |
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459 } |
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460 |
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461 // make sure scrollbar is up to date when we get focus |
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462 if (IsFocused()) |
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463 { |
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464 UpdateScrollBar(); |
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465 } |
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466 |
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467 DrawNow(); |
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468 } |
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469 |
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470 void CMIDForm::SizeChanged() |
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471 { |
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472 DEBUG("CMIDForm::SizeChanged"); |
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473 |
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474 iBackgroundControlContext->SetParentPos(PositionRelativeToScreen()) ; |
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475 iBackgroundControlContext->SetRect(Rect()) ; |
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476 } |
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477 |
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478 /** Before calling CCoeControl::InputCapabilities(), make sure there is |
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479 no outstanding layout. This is because if there is one outstanding, we have |
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480 no rows and hence ComponentControls() returns zero. This means that, for example |
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481 if there are any editors in the items, CCoeControl::InputCapabilities() will not |
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482 reach them and the FEP will not be initialised. @see TrappedLayoutAndDraw(), |
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483 CCoeControl::InputCapabilities(), CAknFepManager::HandleChangeInFocusL() and |
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484 CCoeAppUi::InputCapabilities() */ |
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485 TCoeInputCapabilities CMIDForm::InputCapabilities() const |
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486 { |
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487 if (iFocused != KErrNotFound) |
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488 { |
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489 return ControlItem(iFocused).InputCapabilities(); |
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490 } |
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491 return CCoeControl::InputCapabilities(); //TCoeInputCapabilities::ENone |
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492 } |
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493 |
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494 TTypeUid::Ptr CMIDForm::MopSupplyObject(TTypeUid aId) |
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495 { |
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496 if (aId.iUid == MAknsControlContext::ETypeId && iBackgroundControlContext) |
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497 { |
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498 return MAknsControlContext::SupplyMopObject(aId, iBackgroundControlContext); |
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499 } |
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500 |
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501 CMIDMenuHandler* menuHandler = iDisplayable.MenuHandler(); |
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502 return SupplyMopObject(aId, menuHandler->Cba(), menuHandler->MenuBar()); |
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503 } |
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504 |
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505 |
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506 #ifdef RD_SCALABLE_UI_V2 |
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507 void CMIDForm::HandlePointerEventL(const TPointerEvent& aPointerEvent) |
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508 { |
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509 if (!AknLayoutUtils::PenEnabled()) |
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510 { |
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511 return; |
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512 } |
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513 |
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514 if (iPhysics) |
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515 { |
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516 HandlePhysicsPointerEventL(aPointerEvent); |
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517 return; |
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518 } |
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519 |
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520 switch (aPointerEvent.iType) |
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521 { |
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522 case TPointerEvent::EButton1Down: |
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523 { |
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524 DEBUG_INT3("CMIDForm::HandlePointerEventL(): event=%D, x,y=%D,%D", |
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525 aPointerEvent.iType, aPointerEvent.iPosition.iX, aPointerEvent.iPosition.iY); |
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526 iLastValidPointerEvent = aPointerEvent; |
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527 |
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528 CMIDControlItem* ci = ControlItemAtPoint(aPointerEvent.iPosition); |
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529 // stored on ButtonDown value |
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530 |
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531 if (ci && ci->IsSelectable()) |
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532 { |
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533 TInt itemIndex = ItemIndex(*ci); |
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534 iIndexPointedControl = itemIndex; |
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535 iLastValidPointedItemPosition = ci->Position(); |
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536 TBool changeFocus = (itemIndex != iFocused); |
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537 |
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538 if (changeFocus) |
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539 { |
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540 // changing the focused item by dragging must start from unfocused item |
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541 iCanDragFocus = ETrue; |
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542 iFocusChangingWithPen = ETrue; |
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543 // give basic tactile feedback on button down when move focus |
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544 #ifdef RD_TACTILE_FEEDBACK |
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545 DoFeedbackOnFocusChange(*ci); |
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546 #endif // RD_TACTILE_FEEDBACK |
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547 SetFocusedItem(itemIndex, ENone, EFalse); |
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548 } |
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549 |
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550 TInt scroll = ScrollDistanceToTappedItem(ci); |
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551 |
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552 iScrollOnPointerDown = (scroll != 0); |
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553 |
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554 CCoeControl::HandlePointerEventL(aPointerEvent); |
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555 |
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556 if (iScrollOnPointerDown) |
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557 { |
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558 ScrollRelative(scroll); |
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559 ControlItem(iFocused).NotifyScrollingCompleted(); |
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560 } |
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561 else if (changeFocus) |
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562 { |
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563 HandleItemVisibilityChange(); |
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564 DrawNow(); |
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565 } |
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566 else |
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567 { |
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568 iCanDragFocus = ETrue; |
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569 } |
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570 } |
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571 else // pointer down did not happen on any control item, allow starting drag |
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572 { |
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573 iCanDragFocus = ETrue; |
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574 } |
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575 |
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576 break; |
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577 } |
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578 |
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579 case TPointerEvent::EButton1Up: |
|
580 { |
|
581 if (iIndexPointedControl>-1 && &ControlItem(iIndexPointedControl) == ControlItemAtPoint(aPointerEvent.iPosition)) |
|
582 // When this is item where TPointerEvent::EButton1Down was happened, |
|
583 // then event is forwarded to item. It is its responsibility check that |
|
584 // up event occured if it have some actions on up event. |
|
585 { |
|
586 DEBUG_INT3("CMIDForm::HandlePointerEventL(): event=%D, x,y=%D,%D", |
|
587 aPointerEvent.iType, aPointerEvent.iPosition.iX, aPointerEvent.iPosition.iY); |
|
588 |
|
589 HandleDragEventL(aPointerEvent, ETrue); |
|
590 } |
|
591 else |
|
592 { |
|
593 // When this is not item where TPointerEvent::EButton1Down was happened, |
|
594 // then e`vent is forwarded to item where originally. It is its responsibility |
|
595 // check that up event occured if it have some actions on up event. |
|
596 // Setting default values of related variables. |
|
597 |
|
598 if (iIndexPointedControl>-1 && &ControlItem(iIndexPointedControl)) |
|
599 { |
|
600 TBool bbutton = EFalse; |
|
601 |
|
602 if (IsStringItem(ControlItem(iIndexPointedControl))) |
|
603 { |
|
604 // get appearance from StringItem |
|
605 CMIDStringItem *strItem = static_cast< CMIDStringItem* >(&ControlItem(iIndexPointedControl)); |
|
606 MMIDItem::TAppearance appearance = strItem->Appearance(); |
|
607 bbutton = (appearance == MMIDItem::EButton || appearance == MMIDItem::EHyperLink); |
|
608 } |
|
609 |
|
610 if (ControlItem(iIndexPointedControl).Type() != MMIDComponent::EChoiceGroup && !bbutton) |
|
611 { |
|
612 TPointerEvent pointerevent; |
|
613 pointerevent.iType = TPointerEvent::EButton1Up; |
|
614 pointerevent.iModifiers = aPointerEvent.iModifiers; |
|
615 pointerevent.iPosition = iLastValidPointerEvent.iPosition + |
|
616 ControlItem(iIndexPointedControl).Position() - iLastValidPointedItemPosition; |
|
617 pointerevent.iParentPosition = iLastValidPointerEvent.iParentPosition; |
|
618 |
|
619 ControlItem(iIndexPointedControl).HandlePointerEventL(pointerevent); |
|
620 |
|
621 DEBUG_INT3("CMIDForm::HandlePointerEventL(): event=%D, x,y=%D,%D", |
|
622 pointerevent.iType, pointerevent.iPosition.iX, pointerevent.iPosition.iY); |
|
623 |
|
624 } |
|
625 |
|
626 // forward event for aPointerEvent |
|
627 CCoeControl::HandlePointerEventL(aPointerEvent); |
|
628 } |
|
629 } |
|
630 |
|
631 // If it is pending request for layout, than layout form now and refresh. |
|
632 if (LayoutPending()) |
|
633 { |
|
634 LayoutFormL(); |
|
635 DrawDeferred(); |
|
636 } |
|
637 |
|
638 iCanDragFocus = EFalse; |
|
639 iFocusChangingWithPen = EFalse; |
|
640 iScrollOnPointerDown = EFalse; |
|
641 iIndexPointedControl = -1; |
|
642 |
|
643 break; |
|
644 } |
|
645 |
|
646 case TPointerEvent::EDrag: |
|
647 // for dragging |
|
648 { |
|
649 if (iIndexPointedControl>-1 && &ControlItem(iIndexPointedControl) == ControlItemAtPoint(aPointerEvent.iPosition)) |
|
650 { |
|
651 // When this is item where TPointerEvent::EButton1Down was happened, |
|
652 // then it is updated iLastValidPointerEvent. |
|
653 iLastValidPointerEvent = aPointerEvent; |
|
654 // If it is pending request for layout, than layout Form now and refresh |
|
655 // elsewhere call HandleDragEventL and forward EDrag events to event. |
|
656 if (LayoutPending()) |
|
657 { |
|
658 LayoutFormL(); |
|
659 DrawDeferred(); |
|
660 } |
|
661 else |
|
662 { |
|
663 HandleDragEventL(aPointerEvent, ETrue); |
|
664 } |
|
665 DEBUG_INT3("CMIDForm::HandlePointerEventL(): event=%D, x,y=%D,%D", |
|
666 aPointerEvent.iType, aPointerEvent.iPosition.iX, |
|
667 aPointerEvent.iPosition.iY); |
|
668 } |
|
669 else |
|
670 { |
|
671 // When this is not item where TPointerEvent::EButton1Down was happened, |
|
672 // then we do only dragging. There it is not send event to item. |
|
673 HandleDragEventL(aPointerEvent, EFalse); |
|
674 } |
|
675 break; |
|
676 } |
|
677 |
|
678 case TPointerEvent::EButtonRepeat: |
|
679 // For button repeating |
|
680 { |
|
681 DEBUG_INT3("CMIDForm::HandlePointerEventL(): event=%D, x,y=%D,%D", |
|
682 aPointerEvent.iType, aPointerEvent.iPosition.iX, |
|
683 aPointerEvent.iPosition.iY); |
|
684 |
|
685 RequestPointerRepeat(aPointerEvent); |
|
686 |
|
687 if (iCanDragFocus) |
|
688 { |
|
689 if (aPointerEvent.iPosition.iY < 0 && CanScrollUp()) |
|
690 { |
|
691 TimedScroll(EUp); |
|
692 } |
|
693 else if (aPointerEvent.iPosition.iY > Height() && CanScrollDown()) |
|
694 { |
|
695 TimedScroll(EDown); |
|
696 } |
|
697 } |
|
698 else |
|
699 { |
|
700 CCoeControl::HandlePointerEventL(aPointerEvent); |
|
701 } |
|
702 |
|
703 break; |
|
704 } |
|
705 default: |
|
706 // By defalt only implementation of base class. |
|
707 { |
|
708 CCoeControl::HandlePointerEventL(aPointerEvent); |
|
709 DEBUG_INT3("CMIDForm::HandlePointerEventL(): event=%D, x,y=%D,%D", |
|
710 aPointerEvent.iType, aPointerEvent.iPosition.iX, |
|
711 aPointerEvent.iPosition.iY); |
|
712 break; |
|
713 } |
|
714 } |
|
715 } |
|
716 |
|
717 |
|
718 void CMIDForm::HandleDragEventL(const TPointerEvent& aPointerEvent, TBool aForItem) |
|
719 { |
|
720 RequestPointerRepeat(aPointerEvent); |
|
721 |
|
722 if (iCanDragFocus) |
|
723 { |
|
724 // formRect covers the whole vertical form area, but excludes |
|
725 // the left and right margins and the scroll bar area |
|
726 TRect formRect(TPoint(iFormRect.Rect().iTl.iX, 0), |
|
727 TPoint(iFormRect.Rect().iBr.iX, Height())); |
|
728 |
|
729 // Try to find the new focused item, if needed |
|
730 if (formRect.Contains(aPointerEvent.iPosition) && |
|
731 !FocusedItemContainsPoint(aPointerEvent.iPosition)) |
|
732 { |
|
733 CMIDControlItem* ci = ControlItemAtPoint(aPointerEvent.iPosition); |
|
734 |
|
735 if (ci && ci->IsSelectable()) |
|
736 { |
|
737 TInt itemIndex = ItemIndex(*ci); |
|
738 |
|
739 // Find the direction to which the focus is dragged |
|
740 TDirection direction = ENone; |
|
741 if (iFocused != KErrNotFound) |
|
742 { |
|
743 TRect rect = ControlItem(iFocused).Rect(); |
|
744 |
|
745 if (aPointerEvent.iPosition.iY < rect.iTl.iY) |
|
746 { |
|
747 direction = EUp; |
|
748 } |
|
749 else if (aPointerEvent.iPosition.iY >= rect.iBr.iY) |
|
750 { |
|
751 direction = EDown; |
|
752 } |
|
753 else // focus is moved horizontally |
|
754 { |
|
755 direction = (itemIndex < iFocused) ? ELeft : ERight; |
|
756 } |
|
757 } |
|
758 |
|
759 #ifdef RD_TACTILE_FEEDBACK |
|
760 if (iFocused != itemIndex) |
|
761 { |
|
762 iFeedback->InstantFeedback(ETouchFeedbackSensitive); |
|
763 } |
|
764 #endif |
|
765 SetFocusedItem(itemIndex, direction, EFalse); |
|
766 HandleItemVisibilityChange(); |
|
767 DrawNow(); |
|
768 } |
|
769 } |
|
770 |
|
771 if (FocusedItemContainsPoint(aPointerEvent.iPosition)) |
|
772 { |
|
773 // forward EDrag events to the focused so that the focus can |
|
774 // move inside the item |
|
775 // (only when this is item where TPointerEvent::EButton1Down was occured) |
|
776 |
|
777 CMIDControlItem* focusedControl = ControlItemAtPoint(aPointerEvent.iPosition); |
|
778 |
|
779 if (aForItem || (iIndexPointedControl > -1 && &ControlItem(iIndexPointedControl) && |
|
780 (IsChoiceGroup(ControlItem(iIndexPointedControl)) || IsCustomItem(ControlItem(iIndexPointedControl)))) || |
|
781 focusedControl && IsChoiceGroup(*focusedControl) || |
|
782 focusedControl && IsCustomItem(*focusedControl)) |
|
783 { |
|
784 ControlItem(iFocused).HandlePointerEventL(aPointerEvent); |
|
785 } |
|
786 else |
|
787 { |
|
788 if (iIndexPointedControl > -1 && &ControlItem(iIndexPointedControl)) |
|
789 { |
|
790 TBool bbutton = EFalse; |
|
791 |
|
792 if (IsStringItem(ControlItem(iIndexPointedControl))) |
|
793 { |
|
794 CMIDStringItem *strItem = static_cast< CMIDStringItem* >(&ControlItem(iIndexPointedControl)); |
|
795 MMIDItem::TAppearance appearance = strItem->Appearance(); |
|
796 bbutton = (appearance == MMIDItem::EButton || appearance == MMIDItem::EHyperLink); |
|
797 } |
|
798 |
|
799 //forward event (only for changing focus) for Button & Hyperlink |
|
800 if (bbutton && &ControlItem(iIndexPointedControl)) |
|
801 { |
|
802 ControlItem(iIndexPointedControl).HandlePointerEventL(aPointerEvent); |
|
803 } |
|
804 else |
|
805 { |
|
806 iDisplayable.TryDetectLongTapL(aPointerEvent); |
|
807 } |
|
808 } |
|
809 else |
|
810 { |
|
811 iDisplayable.TryDetectLongTapL(aPointerEvent); |
|
812 } |
|
813 } |
|
814 } |
|
815 else |
|
816 { |
|
817 // make sure that long tap animation is canceled in this case |
|
818 iDisplayable.TryDetectLongTapL(aPointerEvent); |
|
819 } |
|
820 } |
|
821 else // cannot drag focus |
|
822 { |
|
823 CCoeControl::HandlePointerEventL(aPointerEvent); |
|
824 } |
|
825 } |
|
826 |
|
827 |
|
828 void CMIDForm::RequestPointerRepeat(const TPointerEvent& aPointerEvent) |
|
829 { |
|
830 if (aPointerEvent.iPosition.iY < 0 || |
|
831 aPointerEvent.iPosition.iY > Height()) |
|
832 { |
|
833 TRect screen; |
|
834 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EScreen, screen); |
|
835 |
|
836 TRect repeatRect = screen; |
|
837 if (aPointerEvent.iPosition.iY < 0) |
|
838 { |
|
839 repeatRect.iBr.iY = iMidpFormRect.Rect().iTl.iY; |
|
840 } |
|
841 else |
|
842 { |
|
843 repeatRect.iTl.iY = iMidpFormRect.Rect().iBr.iY; |
|
844 } |
|
845 |
|
846 // repeatRect must be given in propotion to form's window, move it up |
|
847 repeatRect.Move(0, -iMidpFormRect.Rect().iTl.iY); |
|
848 Window().RequestPointerRepeatEvent(KScrollInterval, repeatRect); |
|
849 } |
|
850 } |
|
851 |
|
852 |
|
853 void CMIDForm::TimedScroll(TDirection aDirection) |
|
854 { |
|
855 ASSERT(aDirection == EDown || aDirection == EUp); |
|
856 |
|
857 // First find the row that is the first or last row (depending on |
|
858 // the scroll direction) that is at least partailly visible on the form. |
|
859 // Search direction is opposite to aDirection. |
|
860 TDirection searchDirection = (aDirection == EUp) ? EDown : EUp; |
|
861 TInt idx = FirstRowOnScreen(searchDirection); |
|
862 |
|
863 if (idx == KErrNotFound) |
|
864 { |
|
865 return; |
|
866 } |
|
867 |
|
868 TInt scroll = Height() / KScrollAmountDividerForThumbDrag; |
|
869 |
|
870 // Find the row that will be visible (at least partially) after |
|
871 // after the scrolling. |
|
872 if (aDirection == EUp) |
|
873 { |
|
874 while (idx > 0 && (iRows[idx]->Rect().iTl.iY + scroll > 0)) |
|
875 { |
|
876 --idx; |
|
877 } |
|
878 } |
|
879 else |
|
880 { |
|
881 while ((idx < iRows.Count() - 1) && |
|
882 (iRows[idx]->Rect().iBr.iY - scroll < Height())) |
|
883 { |
|
884 ++idx; |
|
885 } |
|
886 } |
|
887 |
|
888 TBool rowFocused = EFalse; |
|
889 if (iFocused != KErrNotFound) |
|
890 { |
|
891 rowFocused = GetControlRect(iFocused).Intersects(iRows[idx]->Rect()); |
|
892 } |
|
893 |
|
894 // If the focus is not yet on the row, try to set one of its items focused |
|
895 if (!rowFocused) |
|
896 { |
|
897 for (TInt i = 0; i < iRows[idx]->NumItems(); ++i) |
|
898 { |
|
899 CMIDControlItem* item = iRows[idx]->Item(i); |
|
900 if (item->IsSelectable()) |
|
901 { |
|
902 SetFocusedItem(ItemIndex(*item), aDirection, EFalse); |
|
903 } |
|
904 } |
|
905 } |
|
906 |
|
907 #ifdef RD_TACTILE_FEEDBACK |
|
908 iFeedback->InstantFeedback(ETouchFeedbackSensitive); |
|
909 #endif |
|
910 |
|
911 ScrollRelative((aDirection == EUp) ? scroll : -scroll); |
|
912 } |
|
913 |
|
914 |
|
915 TBool CMIDForm::CanScrollUp() const |
|
916 { |
|
917 return (iScroll < 0); |
|
918 } |
|
919 |
|
920 |
|
921 TBool CMIDForm::CanScrollDown() const |
|
922 { |
|
923 return ((iFormHeight - iScroll) < iTotalFormHeight); |
|
924 } |
|
925 |
|
926 |
|
927 TBool CMIDForm::FocusedItemContainsPoint(const TPoint& aPoint) const |
|
928 { |
|
929 if (iFocused != KErrNotFound) |
|
930 { |
|
931 if (ItemIsUnconstrained(iFocused)) |
|
932 { |
|
933 return StringItemContainsPoint( |
|
934 static_cast<CMIDStringItem*>(&ControlItem(iFocused)), aPoint); |
|
935 } |
|
936 else |
|
937 { |
|
938 return ControlItem(iFocused).Rect().Contains(aPoint); |
|
939 } |
|
940 } |
|
941 else |
|
942 { |
|
943 return EFalse; |
|
944 } |
|
945 } |
|
946 |
|
947 CMIDControlItem* CMIDForm::ControlItemAtPoint(const TPoint& aPoint) const |
|
948 { |
|
949 TInt idx = RowAtPoint(aPoint); |
|
950 |
|
951 if (idx != KErrNotFound) |
|
952 { |
|
953 for (TInt i = 0; i < iRows[idx]->NumItems(); ++i) |
|
954 { |
|
955 CMIDControlItem* ci = iRows[idx]->Item(i); |
|
956 if (ci && ci->Rect().Contains(aPoint)) |
|
957 { |
|
958 return ci; |
|
959 } |
|
960 } |
|
961 } |
|
962 |
|
963 return NULL; |
|
964 } |
|
965 |
|
966 |
|
967 TInt CMIDForm::RowAtPoint(const TPoint& aPoint) const |
|
968 { |
|
969 TInt rowCount = iRows.Count(); |
|
970 // loop until the first row fully below the visible form area |
|
971 for (TInt i = 0; i < rowCount && (iRows[i]->Position().iY < iFormHeight); ++i) |
|
972 { |
|
973 if (iRows[i]->Rect().Contains(aPoint)) |
|
974 { |
|
975 return i; |
|
976 } |
|
977 } |
|
978 return KErrNotFound; |
|
979 } |
|
980 |
|
981 #endif // #ifdef RD_SCALABLE_UI_V2 |
|
982 |
|
983 |
|
984 void CMIDForm::SetFocusedItemIfNone(CMIDItem* aItem) |
|
985 { |
|
986 if (iFocused == KErrNotFound) |
|
987 { |
|
988 ASSERT(aItem); |
|
989 TInt index = Index(aItem); |
|
990 |
|
991 if (index >= 0 && index < iItems.Count()) |
|
992 { |
|
993 CMIDControlItem& ci = ControlItem(iItems[index]); |
|
994 if (ci.IsSelectable()) |
|
995 { |
|
996 SetFocusedItem(index); |
|
997 ScrollToFocused(); |
|
998 } |
|
999 } |
|
1000 } |
|
1001 } |
|
1002 |
|
1003 /** This method is called when an item loses focusability, |
|
1004 for example because it loses all its commands. If this item |
|
1005 is focused, call ReplaceFocusedItem() to find another focusable |
|
1006 item. @see CMIDItem::RemoveCommand() and ReplaceFocusedItem*/ |
|
1007 void CMIDForm::RemoveFocusIfFocused(CMIDItem* aItem) |
|
1008 { |
|
1009 ASSERT(aItem); |
|
1010 TInt index = Index(aItem); |
|
1011 if (iFocused == index) |
|
1012 { |
|
1013 // Hide menu because item has lost all item commands and |
|
1014 // another item may have become focused behind the menu. |
|
1015 iDisplayable.MenuHandler()->HideMenuIfVisible(); |
|
1016 ReplaceFocusedItem(); |
|
1017 } |
|
1018 } |
|
1019 |
|
1020 /** |
|
1021 * Traverse is a method to go thorough the form; it includes moving focus from |
|
1022 * item to another possibly scrolling the form. Note that sometimes traversal |
|
1023 * does not move focus, because an item is larger that the screen and thus form |
|
1024 * is scrolled little by little so that the user can see the whole content. On |
|
1025 * other cases, traversing means only moving focus from item to another as both |
|
1026 * items are visible on the screen. |
|
1027 * |
|
1028 * @param aDirection defines the direction of the traversing (up, down, left, right). |
|
1029 **/ |
|
1030 void CMIDForm::Traverse(TDirection aDirection) |
|
1031 { |
|
1032 DEBUG("< CMIDForm::Traverse"); |
|
1033 DEBUG_INT("< CMIDForm::Traverse Direction is %D", aDirection); |
|
1034 TBool horizontalScroll = EFalse; |
|
1035 |
|
1036 if (LayoutPending()) |
|
1037 { |
|
1038 DEBUG("CMIDForm::Traverse - calling layout"); |
|
1039 // lets do the layout now so we can always assume that we are layed out before doing this stuff |
|
1040 TrappedLayoutAndDraw(); |
|
1041 } |
|
1042 |
|
1043 #ifdef RD_SCALABLE_UI_V2 |
|
1044 TBool focusHidden = EFalse; |
|
1045 // If the focused item is currently fully outside the visible form area, |
|
1046 // it means that form has been scrolled by moving the scrollbar with pen. In this case |
|
1047 // set iFocused (temporarily) to KErrNone in order that scrolling with arrow keys works ok. |
|
1048 if (iFocused != KErrNotFound && !RectPartiallyVisible(GetControlRect(iFocused))) |
|
1049 { |
|
1050 focusHidden = ETrue; |
|
1051 SetFocusedItem(KErrNotFound, ENone, EFalse); |
|
1052 } |
|
1053 #endif |
|
1054 |
|
1055 if (aDirection == ELeft || aDirection == ERight) |
|
1056 { |
|
1057 DEBUG("CMIDForm::Traverse - move focus horizontally"); |
|
1058 if (!TryMovingFocusHorizontally(aDirection)) |
|
1059 { |
|
1060 if (iInitialAlignment == MMIDItem::ERight) |
|
1061 {//RIGHT TO LEFT |
|
1062 TryMovingFocusVertically(aDirection == ELeft ? EDown : EUp, EFalse); |
|
1063 } |
|
1064 else |
|
1065 {//LEFT TO RIGHT |
|
1066 TryMovingFocusVertically(aDirection == ELeft ? EUp : EDown, EFalse); |
|
1067 } |
|
1068 } |
|
1069 else |
|
1070 { |
|
1071 horizontalScroll = ETrue; |
|
1072 } |
|
1073 } |
|
1074 else if (aDirection == EUp || aDirection == EDown) |
|
1075 { |
|
1076 DEBUG("CMIDForm::Traverse - move focus vertically"); |
|
1077 TryMovingFocusVertically(aDirection, ETrue); |
|
1078 } |
|
1079 |
|
1080 // if there is still a focused item, make sure it is still on the screen. |
|
1081 // if it isn't remove focus as we've already tried out best to have a |
|
1082 // focussed item on screen |
|
1083 if (iFocused != KErrNotFound) |
|
1084 { |
|
1085 TRect rect = GetControlRect(iFocused); |
|
1086 if (!RectPartiallyVisible(rect)) |
|
1087 { |
|
1088 SetFocusedItem(KErrNotFound, ENone); |
|
1089 } |
|
1090 } |
|
1091 #ifdef RD_SCALABLE_UI_V2 |
|
1092 else if (focusHidden) |
|
1093 { |
|
1094 // Try to bring the focus back to visible area by setting the last focusable |
|
1095 // item in the scroll direction focused. |
|
1096 TDirection searchDirection = (aDirection == EDown || aDirection == ERight) ? |
|
1097 EUp : EDown; |
|
1098 TInt newFocusIndex = IndexOfFirstFocusableItemOnScreen(searchDirection); |
|
1099 if (newFocusIndex != KErrNotFound) |
|
1100 { |
|
1101 // Pass searchDirection also to SetFocusedItem(). This is needed at least |
|
1102 // for choice group and custom item cases, so that they can set there |
|
1103 // internal focus to the last element in the actual scroll direction. |
|
1104 SetFocusedItem(newFocusIndex, searchDirection, EFalse); |
|
1105 DrawDeferred(); |
|
1106 } |
|
1107 } |
|
1108 #endif |
|
1109 |
|
1110 RawScrollFinalize(horizontalScroll); |
|
1111 DEBUG("> CMIDForm::Traverse"); |
|
1112 } |
|
1113 |
|
1114 |
|
1115 // ----------------------------------------------------------------------------- |
|
1116 // Form scrolling methods |
|
1117 // ----------------------------------------------------------------------------- |
|
1118 /** |
|
1119 * Scroll to the focused control if there is one and update form visibility (draw) and scroll bar. |
|
1120 * @see ScrollToRect() and SetRowExtentsWithRespectToScrolledLocation(). |
|
1121 **/ |
|
1122 void CMIDForm::ScrollToFocused(TDirection aDirection /*=EDown*/, TBool aReset /*= ETrue*/) |
|
1123 { |
|
1124 DEBUG("< CMIDForm::ScrollToFocused"); |
|
1125 if (!LayoutPending()) |
|
1126 { |
|
1127 if (iFocused != KErrNotFound) |
|
1128 { |
|
1129 TRect rect = GetControlRect(iFocused); |
|
1130 DEBUG_INT4("CMIDForm::ScrollToFocused - rect is %D %D %D %D", |
|
1131 rect.iTl.iX, rect.iTl.iY, rect.iBr.iX, rect.iBr.iY); |
|
1132 RawScrollToRect(rect, aDirection, aReset); |
|
1133 } |
|
1134 |
|
1135 RawScrollFinalize(ETrue); |
|
1136 |
|
1137 if (iFocused != KErrNotFound) |
|
1138 { |
|
1139 ControlItem(iFocused).NotifyScrollingCompleted(); |
|
1140 } |
|
1141 } |
|
1142 |
|
1143 UpdatePhysics(); |
|
1144 |
|
1145 DEBUG("> CMIDForm::ScrollToFocused"); |
|
1146 } |
|
1147 |
|
1148 TInt CMIDForm::ScrollDistanceToTappedItem(CMIDControlItem* aPointedControl) |
|
1149 { |
|
1150 TRect focusedRect = aPointedControl->Rect(); |
|
1151 TInt scroll = 0; |
|
1152 |
|
1153 // Calculate how much we need to scroll to make the tapped item fully/more visible |
|
1154 if (!RectFullyVisible(focusedRect)) |
|
1155 { |
|
1156 TInt topMargin = iFormRect.Rect().iTl.iY - iMidpFormRect.Rect().iTl.iY; |
|
1157 TInt bottomMargin = iMidpFormRect.Rect().iBr.iY - iFormRect.Rect().iBr.iY; |
|
1158 |
|
1159 if (focusedRect.Height() <= Height()) |
|
1160 { |
|
1161 scroll = (focusedRect.iBr.iY > Height()) ? |
|
1162 Height() - focusedRect.iBr.iY : -focusedRect.iTl.iY; |
|
1163 } |
|
1164 // Scroll long item so that it fills the whole form height. |
|
1165 // No scroll in case item already fills the whole screen or if there would |
|
1166 // be just few pixels (~margins) to scroll. |
|
1167 else if ((focusedRect.iTl.iY > 0 && focusedRect.iTl.iY > topMargin) || |
|
1168 (focusedRect.iBr.iY < Height() && |
|
1169 Height() - focusedRect.iBr.iY > bottomMargin)) |
|
1170 { |
|
1171 scroll = (focusedRect.iTl.iY > 0) ? |
|
1172 -focusedRect.iTl.iY : -(focusedRect.iBr.iY - Height()); |
|
1173 } |
|
1174 } |
|
1175 return scroll; |
|
1176 } |
|
1177 |
|
1178 /** |
|
1179 * Scrolls to the rect corresponding to the row specified by aIdx using |
|
1180 * the direction indicated by aDirection. @see ScrollToRect() |
|
1181 **/ |
|
1182 void CMIDForm::RawScrollToRow(TInt aIdx, TDirection aDirection) |
|
1183 { |
|
1184 DEBUG("< CMIDForm::RawScrollToRow"); |
|
1185 if (aIdx >= 0 && aIdx < iRows.Count()) |
|
1186 { |
|
1187 TRect rect = iRows[aIdx]->Rect(); |
|
1188 DEBUG("CMIDForm::RawScrollToRow - scroll to rect"); |
|
1189 RawScrollToRect(rect, aDirection); |
|
1190 } |
|
1191 DEBUG("> CMIDForm::RawScrollToRow"); |
|
1192 } |
|
1193 |
|
1194 /** */ |
|
1195 void CMIDForm::RawScrollToRect(const TRect& aRect, TDirection aDirection, TBool aReset) |
|
1196 { |
|
1197 DEBUG("< CMIDForm::RawScrollToRect"); |
|
1198 DEBUG_INT4("CMIDForm::RawScrollToRect - rect is %D %D %D %D", aRect.iTl.iX, aRect.iTl.iY, |
|
1199 aRect.iBr.iX, aRect.iBr.iY); |
|
1200 |
|
1201 if (RectFullyVisible(aRect)) |
|
1202 { |
|
1203 DEBUG("CMIDForm::RawScrollToRect - return rect fully visible"); |
|
1204 TInt maxScrollValue = Height() - HeightOfAllItems(); |
|
1205 // Avoid scrolling out of the form (i.e. after the view port has lower height) |
|
1206 |
|
1207 if (iScroll < maxScrollValue) |
|
1208 { |
|
1209 RawScroll(maxScrollValue); |
|
1210 } |
|
1211 return; |
|
1212 } |
|
1213 |
|
1214 TInt scrollOffset = 0; |
|
1215 if (aRect.Size().iHeight > Height()) |
|
1216 {//rect higher than screen height |
|
1217 if (RectPartiallyVisible(aRect) && !aReset) |
|
1218 {//if already visible, scroll only of KMinScrollAmount (panning) |
|
1219 scrollOffset = (aDirection == EDown) ? -KMinScrollAmount : KMinScrollAmount; |
|
1220 } |
|
1221 else |
|
1222 {//if not visible and scrolling down scroll to top - KMinScrollAmount |
|
1223 // or to bottom + KMinScrollAmount if scrolling up |
|
1224 scrollOffset = (aDirection == EDown) ? (Height() - (aRect.iTl.iY + KMinScrollAmount)) |
|
1225 : -(aRect.iBr.iY - KMinScrollAmount); |
|
1226 } |
|
1227 } |
|
1228 else |
|
1229 {//if it fits on screen make sure its BR is at the bottom if scrolling down |
|
1230 //or its TL is at the top if scrolling up |
|
1231 scrollOffset = (aDirection == EDown) ? (Height() - aRect.iBr.iY) : (-aRect.iTl.iY); |
|
1232 } |
|
1233 |
|
1234 RawScroll(iScroll + scrollOffset); |
|
1235 DEBUG("> CMIDForm::RawScrollToRect"); |
|
1236 } |
|
1237 |
|
1238 void CMIDForm::ScrollRelative(TInt aScroll) |
|
1239 { |
|
1240 DEBUG("CMIDForm::ScrollRelative"); |
|
1241 RawScrollRelative(aScroll); |
|
1242 RawScrollFinalize(EFalse); |
|
1243 } |
|
1244 |
|
1245 void CMIDForm::RawScrollRelative(TInt aScroll) |
|
1246 { |
|
1247 TInt scroll = iScroll + aScroll; |
|
1248 RawScroll(scroll); |
|
1249 } |
|
1250 |
|
1251 void CMIDForm::RawScroll(TInt aScroll) |
|
1252 { |
|
1253 TInt contentHeight = HeightOfAllItems(); |
|
1254 TInt viewPortHeight = Height(); |
|
1255 if (aScroll > 0 || contentHeight <= viewPortHeight) |
|
1256 { // make sure that top does not slide down |
|
1257 aScroll = 0; |
|
1258 } |
|
1259 if (contentHeight > viewPortHeight && ((-aScroll) + viewPortHeight) > contentHeight) |
|
1260 { // scroll only as long as there is content |
|
1261 aScroll = -(contentHeight - viewPortHeight); |
|
1262 } |
|
1263 iHasScrolled = iScroll != aScroll; |
|
1264 iScrollDelta = aScroll - iScroll; |
|
1265 iScroll = aScroll; |
|
1266 |
|
1267 SetRowPositionsWithRespectToScrolledLocation(); |
|
1268 } |
|
1269 |
|
1270 void CMIDForm::SetRowExtentsWithRespectToScrolledLocation() |
|
1271 { |
|
1272 iTotalFormHeight = 0; |
|
1273 TInt xMargin = iFormRect.Rect().iTl.iX; |
|
1274 TInt yTopMargin = iFormRect.Rect().iTl.iY - iMidpFormRect.Rect().iTl.iY; |
|
1275 TInt yBottomMargin = iMidpFormRect.Rect().iBr.iY - iFormRect.Rect().iBr.iY; |
|
1276 |
|
1277 iTotalFormHeight = yTopMargin; |
|
1278 |
|
1279 TInt rowCount = iRows.Count(); |
|
1280 for (TInt i=0; i < rowCount; i++) |
|
1281 { |
|
1282 // Form left margin is added in the beginning of each row |
|
1283 iRows[i]->SetExtent(TPoint(xMargin, iScroll + iTotalFormHeight), |
|
1284 TSize(Width(), iRows[i]->Size().iHeight)); |
|
1285 iTotalFormHeight += iRows[i]->Size().iHeight; |
|
1286 } |
|
1287 // Form bottom margin is added |
|
1288 iTotalFormHeight += yBottomMargin; |
|
1289 } |
|
1290 |
|
1291 void CMIDForm::SetRowPositionsWithRespectToScrolledLocation() |
|
1292 { |
|
1293 TInt rowCount = iRows.Count(); |
|
1294 for (TInt i=0; i < rowCount; i++) |
|
1295 { |
|
1296 // Form left margin is added in the beginning of each row |
|
1297 TPoint pos = iRows[i]->Position(); |
|
1298 pos.iY += ScrollDelta(); |
|
1299 iRows[i]->SetPosition(pos); |
|
1300 } |
|
1301 } |
|
1302 |
|
1303 // Finalizes scrolling after any RawScrollXxxx method call, e.g. causes repaint. |
|
1304 // Draw can be prevented e.g. because of the performance reasons. |
|
1305 void CMIDForm::RawScrollFinalize(TBool forseAction, TBool aDraw /*= ETrue*/) |
|
1306 { |
|
1307 if (iHasScrolled || forseAction) |
|
1308 { |
|
1309 UpdateHighlightBackgroundPosition(); |
|
1310 HandleItemVisibilityChange(); |
|
1311 UpdateScrollBar(); |
|
1312 if (iFocused != KErrNotFound) |
|
1313 { |
|
1314 CMIDControlItem& ci = ControlItem(iFocused); |
|
1315 if (IsTextFieldItem(ci)) |
|
1316 { |
|
1317 if (RectPartiallyVisible(ci.Rect())) |
|
1318 { |
|
1319 ((CMIDTextFieldItem&) ci).SetCursorVisibility(ETrue); |
|
1320 } |
|
1321 else |
|
1322 { |
|
1323 ((CMIDTextFieldItem&) ci).SetCursorVisibility(EFalse); |
|
1324 } |
|
1325 } |
|
1326 if (IsDateField(ci)) |
|
1327 { |
|
1328 // Update right cursor position on Datefiled |
|
1329 ((CMIDDateFieldItem&) ci).CursorUpdate(); |
|
1330 } |
|
1331 } |
|
1332 if (aDraw) |
|
1333 { |
|
1334 DrawDeferred(); |
|
1335 } |
|
1336 iHasScrolled = EFalse; |
|
1337 } |
|
1338 } |
|
1339 |
|
1340 /** Returns the client area */ |
|
1341 TRect CMIDForm::GetClientArea() |
|
1342 { |
|
1343 TRect scrolledClientArea = TRect(Position(), TSize(Width(), Height())); |
|
1344 return scrolledClientArea; |
|
1345 } |
|
1346 |
|
1347 // returns ETrue if it moved the focus |
|
1348 // returns EFalse otherwise |
|
1349 TBool CMIDForm::TryMovingFocusHorizontally(TDirection aDirection) |
|
1350 { |
|
1351 ASSERT(aDirection == ELeft || aDirection == ERight); |
|
1352 |
|
1353 TInt idx = NextFocusableHorizontalIdx(aDirection); |
|
1354 if (idx != KErrNotFound) |
|
1355 { |
|
1356 SetFocusedItem(idx, aDirection); |
|
1357 return ETrue; |
|
1358 } |
|
1359 |
|
1360 return EFalse; |
|
1361 } |
|
1362 |
|
1363 /** |
|
1364 Moves the focus vertically. |
|
1365 |
|
1366 We check if there is a focussable item, |
|
1367 which is on a row totally or partially visible and if there is such |
|
1368 an item we then select that row. This is done by calling |
|
1369 NextPartiallyVisibleRowWithFocusableItem(). If no such item was found we pick |
|
1370 the top or bottom (depending on scrolling direction) row that is partially |
|
1371 visible or the first not visible if the last one is completely shown. |
|
1372 This is done by FirstRowWithBottomBelowScreen() and LastRowWithTopAboveScreen(). |
|
1373 |
|
1374 At this point if we have a row, we select a focussable item on it and |
|
1375 scroll to it if aScroll is true. Calling scroll methods doesn't mean there is going to be |
|
1376 scrolling of the form, |
|
1377 if the item is already visible no scrolling is done. We select the |
|
1378 next focussable item according to the value of the parameter aSelectClosest. |
|
1379 If this paramerter is true we call SelectClosestFocussableItem() otherwise |
|
1380 we either select the first or the last selectable item on the row depending |
|
1381 on the direction. |
|
1382 |
|
1383 If we find a control we scroll to it by calling ScrollToFocused() (if aScroll is true) and move |
|
1384 the focus to it by calling SetFocusedItem(). Otherwise we |
|
1385 scroll to the row by calling ScrollToRow() if aScroll is true. |
|
1386 |
|
1387 If we could not find any row with a focusable item on it, we scroll the form |
|
1388 of a fixed quantity, KMinScrollAmount, if aScroll is true. |
|
1389 |
|
1390 We return ETrue if the focus was moved, EFalse otherwise. Note: Currently the |
|
1391 return value of this method is ignored. |
|
1392 |
|
1393 @see NextPartiallyVisibleRowWithFocusableItem(), FirstRowWithBottomBelowScreen(), |
|
1394 LastRowWithTopAboveScreen(), SelectClosestFocussableItem() |
|
1395 ScrollToRow(), SetFocusedItem() and DoScrollRelative(). |
|
1396 Also see ReplaceFocusedItem(), called when the focused item is removed or |
|
1397 loses focusability - in this case no scrolling will occur. |
|
1398 */ |
|
1399 TBool CMIDForm::TryMovingFocusVertically(TDirection aDirection, TBool aSelectClosest, |
|
1400 TBool aScroll /*=ETrue*/) |
|
1401 { |
|
1402 DEBUG("> CMIDForm::TryMovingFocusVertically"); |
|
1403 ASSERT(aDirection == EUp || aDirection == EDown); |
|
1404 |
|
1405 // is VKB opened |
|
1406 if (iDisplayable.IsVKBOnScreen()) |
|
1407 { |
|
1408 return ETrue; |
|
1409 } |
|
1410 |
|
1411 TInt rowIdx = NextPartiallyVisibleRowWithFocusableItem(aDirection); |
|
1412 |
|
1413 if (rowIdx == KErrNotFound) |
|
1414 { |
|
1415 DEBUG("CMIDForm::TryMovingFocusVertically - no partially visible focusable control found"); |
|
1416 rowIdx = aDirection == EDown ? FirstRowWithBottomBelowScreen() : LastRowWithTopAboveScreen(); |
|
1417 } |
|
1418 |
|
1419 if (rowIdx != KErrNotFound) |
|
1420 { |
|
1421 CMIDControlItem* ci = aSelectClosest ? SelectClosestFocussableItem(rowIdx) : |
|
1422 (aDirection == EDown ? iRows[rowIdx]->FirstFocusableItem() : |
|
1423 iRows[rowIdx]->LastFocusableItem()); |
|
1424 |
|
1425 |
|
1426 if (ci) |
|
1427 { |
|
1428 DEBUG("CMIDForm::TryMovingFocusVertically - got control"); |
|
1429 TInt index = Index(ci); |
|
1430 |
|
1431 if (index == KErrNotFound && IsLabelContainerItem(*ci)) |
|
1432 { |
|
1433 CMIDLabelContainerItem* ucsi = static_cast<CMIDLabelContainerItem*>(ci); |
|
1434 CMIDStringItem& si = ucsi->StringItem(); |
|
1435 index = Index(&si); |
|
1436 } |
|
1437 |
|
1438 if (index != KErrNotFound) |
|
1439 { |
|
1440 TRect rect = GetControlRect(index); |
|
1441 |
|
1442 if (aScroll) |
|
1443 { |
|
1444 SetFocusedItem(index, aDirection, ETrue); |
|
1445 } |
|
1446 else if (RectPartiallyVisible(rect)) |
|
1447 { |
|
1448 SetFocusedItem(index, aDirection); |
|
1449 } |
|
1450 else |
|
1451 { |
|
1452 SetFocusedItem(KErrNotFound); |
|
1453 } |
|
1454 |
|
1455 DEBUG("CMIDForm::TryMovingFocusVertically - out after scroll to control"); |
|
1456 return ETrue; |
|
1457 } |
|
1458 } |
|
1459 |
|
1460 DEBUG("CMIDForm::TryMovingFocusVertically - scrolling to row"); |
|
1461 if (aScroll) |
|
1462 { |
|
1463 RawScrollToRow(rowIdx, aDirection); |
|
1464 } |
|
1465 } |
|
1466 else |
|
1467 { |
|
1468 DEBUG("CMIDForm::TryMovingFocusVertically - small default scrolling"); |
|
1469 if (aScroll) |
|
1470 { |
|
1471 RawScrollRelative((aDirection == EDown) ? -KMinScrollAmount : KMinScrollAmount); |
|
1472 } |
|
1473 } |
|
1474 |
|
1475 DEBUG("< CMIDForm::TryMovingFocusVertically"); |
|
1476 return EFalse; |
|
1477 } |
|
1478 |
|
1479 /** Given a row index, selects on this row the focusable control whose center on |
|
1480 the x axis is closes to the center of the currently focused item, if there is one. |
|
1481 If no control is found, returns the first selectable item on the row. */ |
|
1482 CMIDControlItem* CMIDForm::SelectClosestFocussableItem(TInt aRowIndex) const |
|
1483 { |
|
1484 ASSERT(aRowIndex >= 0 && aRowIndex < iRows.Count()); |
|
1485 TInt selectedIndex = -1; |
|
1486 |
|
1487 if (iFocused != -1) |
|
1488 { |
|
1489 TRect rect = GetControlRect(iFocused); |
|
1490 TInt focusedCenter = rect.iTl.iX + rect.Width()/2; |
|
1491 |
|
1492 TInt diff = iInnerWidth; |
|
1493 |
|
1494 TInt numItemsOnRow = iRows[aRowIndex]->NumItems(); |
|
1495 for (TInt i = 0; i < numItemsOnRow; i++) |
|
1496 { |
|
1497 CMIDControlItem* item = iRows[aRowIndex]->Item(i); |
|
1498 if (item->IsSelectable()) |
|
1499 { |
|
1500 TInt center = item->Position().iX + (item->Size().iWidth / 2); |
|
1501 TInt itemDiff = focusedCenter > center ? (focusedCenter - center) : (center - focusedCenter); |
|
1502 |
|
1503 if (itemDiff < diff) |
|
1504 { |
|
1505 selectedIndex = i; |
|
1506 diff = itemDiff; |
|
1507 } |
|
1508 } |
|
1509 } |
|
1510 } |
|
1511 |
|
1512 return selectedIndex == -1 ? iRows[aRowIndex]->FirstFocusableItem() : |
|
1513 iRows[aRowIndex]->Item(selectedIndex); |
|
1514 } |
|
1515 |
|
1516 TInt CMIDForm::IndexOfFirstFocusableItemOnScreen(TDirection aDirection) |
|
1517 { |
|
1518 ASSERT(aDirection == EUp || aDirection == EDown); |
|
1519 |
|
1520 TInt startIdx = FirstRowOnScreen(aDirection); |
|
1521 |
|
1522 if (startIdx == KErrNotFound) |
|
1523 { |
|
1524 return KErrNotFound; |
|
1525 } |
|
1526 |
|
1527 CMIDControlItem* ci = NULL; |
|
1528 |
|
1529 if (aDirection == EDown) |
|
1530 { |
|
1531 TInt idx = startIdx - 1; |
|
1532 TInt rowCount = iRows.Count(); |
|
1533 while (++idx < rowCount) |
|
1534 { |
|
1535 CMIDFormRow* row = iRows[idx]; |
|
1536 if (row->Position().iY > Height()) |
|
1537 { |
|
1538 break; |
|
1539 } |
|
1540 ci = row->FirstFocusableItemOnScreen(); |
|
1541 if (ci) |
|
1542 { |
|
1543 break; |
|
1544 } |
|
1545 } |
|
1546 } |
|
1547 else |
|
1548 { |
|
1549 TInt idx = startIdx + 1; |
|
1550 while (--idx >= 0) |
|
1551 { |
|
1552 CMIDFormRow* row = iRows[idx]; |
|
1553 if ((row->Position().iY + row->Size().iHeight) < 0) |
|
1554 { |
|
1555 break; |
|
1556 } |
|
1557 ci = row->FirstFocusableItemOnScreen(); |
|
1558 if (ci) |
|
1559 { |
|
1560 break; |
|
1561 } |
|
1562 } |
|
1563 } |
|
1564 |
|
1565 if (!ci) |
|
1566 { |
|
1567 return KErrNotFound; |
|
1568 } |
|
1569 |
|
1570 TInt index = Index(ci); |
|
1571 if (index == KErrNotFound) |
|
1572 { |
|
1573 if (IsLabelContainerItem(*ci)) |
|
1574 { |
|
1575 CMIDLabelContainerItem* ucsi = static_cast<CMIDLabelContainerItem*>(ci); |
|
1576 CMIDStringItem& si = ucsi->StringItem(); |
|
1577 index = Index(&si); |
|
1578 } |
|
1579 } |
|
1580 |
|
1581 return index; |
|
1582 } |
|
1583 |
|
1584 /** Return the rect for a control, taking into account if the control is an |
|
1585 unconstrained string item which has been split over more than one label container |
|
1586 */ |
|
1587 TRect CMIDForm::GetControlRect(TInt aIdx) const |
|
1588 { |
|
1589 CMIDControlItem& ci = ControlItem(aIdx); |
|
1590 TRect rect; |
|
1591 |
|
1592 if (ItemIsUnconstrained(aIdx)) |
|
1593 { |
|
1594 rect = GetUnconstrainedStringItemRect(static_cast<CMIDStringItem*>(&ci)); |
|
1595 } |
|
1596 else |
|
1597 { |
|
1598 rect = ci.Rect(); |
|
1599 } |
|
1600 |
|
1601 return rect; |
|
1602 } |
|
1603 |
|
1604 /** Collate rects for unconstrained string items that have been split across more |
|
1605 than one lable container */ |
|
1606 TRect CMIDForm::GetUnconstrainedStringItemRect(CMIDStringItem* aStringItem) const |
|
1607 { |
|
1608 TRect rect(0,0,0,0); |
|
1609 TBool found = EFalse; |
|
1610 |
|
1611 TInt rowIdx = FirstRowOfUnconstrainedStringItem(*aStringItem); |
|
1612 TInt rowCount = iRows.Count(); |
|
1613 |
|
1614 // if the first row of unconstrained string item cannot be found |
|
1615 // it means that string item is placed as default item |
|
1616 // so simply return item's rect |
|
1617 if (rowIdx == KErrNotFound) |
|
1618 { |
|
1619 return aStringItem->Rect(); |
|
1620 } |
|
1621 |
|
1622 while (rowIdx != KErrNotFound && rowIdx < rowCount) |
|
1623 { |
|
1624 CMIDFormRow* row = iRows[rowIdx]; |
|
1625 for (TInt idxOnRow = 0; idxOnRow < row->NumItems(); idxOnRow++) |
|
1626 { |
|
1627 CMIDControlItem* ci = row->Item(idxOnRow); |
|
1628 if (ci && IsLabelContainerItem(*ci)) |
|
1629 { |
|
1630 CMIDLabelContainerItem* usil = static_cast<CMIDLabelContainerItem*>(ci); |
|
1631 CMIDStringItem* si = &(usil->StringItem()); |
|
1632 |
|
1633 if (si == aStringItem) |
|
1634 { |
|
1635 if (!found) |
|
1636 { |
|
1637 rect.iTl = usil->Rect().iTl; |
|
1638 found = ETrue; |
|
1639 } |
|
1640 rect.iBr = usil->Rect().iBr; |
|
1641 } |
|
1642 else if (found) |
|
1643 { |
|
1644 return rect; |
|
1645 } |
|
1646 } |
|
1647 else if (found) |
|
1648 { |
|
1649 return rect; |
|
1650 } |
|
1651 } |
|
1652 rowIdx++; |
|
1653 } |
|
1654 |
|
1655 return rect; |
|
1656 } |
|
1657 |
|
1658 TBool CMIDForm::RectPartiallyVisible(const TRect& aRect) |
|
1659 { |
|
1660 return ((aRect.iTl.iY >= 0) && (aRect.iTl.iY < Height())) || |
|
1661 ((aRect.iBr.iY >= 0) && (aRect.iBr.iY < Height())) || |
|
1662 ((aRect.iTl.iY < 0) && (aRect.iBr.iY >= Height())); |
|
1663 } |
|
1664 |
|
1665 TBool CMIDForm::RectFullyVisible(const TRect& aRect) |
|
1666 { |
|
1667 return (aRect.iTl.iY >= 0) && (aRect.iBr.iY <= Height()); |
|
1668 } |
|
1669 |
|
1670 TInt CMIDForm::FirstRowWithBottomBelowScreen() |
|
1671 { |
|
1672 TInt idx = -1; |
|
1673 TInt rowWithFocus = iFocused == KErrNotFound ? -1 : Row(ControlItem(iFocused)); |
|
1674 TInt rowCount = iRows.Count(); |
|
1675 while (++idx < rowCount) |
|
1676 { |
|
1677 CMIDFormRow* row = iRows[idx]; |
|
1678 TInt height = row->Size().iHeight; |
|
1679 TInt yPos = row->Position().iY; |
|
1680 if ((height + yPos) > Height() && row->HasNonSpacerItems() && idx != rowWithFocus) |
|
1681 { |
|
1682 return idx; |
|
1683 } |
|
1684 } |
|
1685 |
|
1686 return KErrNotFound; |
|
1687 } |
|
1688 |
|
1689 TInt CMIDForm::LastRowWithTopAboveScreen() |
|
1690 { |
|
1691 TInt idx = iRows.Count(); |
|
1692 TInt rowWithFocus = iFocused == KErrNotFound ? -1 : Row(ControlItem(iFocused)); |
|
1693 |
|
1694 while (--idx >= 0) |
|
1695 { |
|
1696 CMIDFormRow* row = iRows[idx]; |
|
1697 TInt yPos = row->Position().iY; |
|
1698 if (yPos < 0 && row->HasNonSpacerItems() && idx != rowWithFocus) |
|
1699 { |
|
1700 return idx; |
|
1701 } |
|
1702 } |
|
1703 |
|
1704 return KErrNotFound; |
|
1705 } |
|
1706 |
|
1707 // note: inspite of the name of this method, we only consider rows with |
|
1708 // a focusable item that has not already been scrolled off the screen. |
|
1709 // For Example: |
|
1710 // |
|
1711 // ---- |
|
1712 // | A | This is a |
|
1713 // | | string item |
|
1714 // ---- that is placed |
|
1715 //----------------------- <- top of form |
|
1716 // next to item A. |
|
1717 // This |
|
1718 // string |
|
1719 // item |
|
1720 // is |
|
1721 // quite |
|
1722 // tall |
|
1723 // and |
|
1724 //----------------------- <- botom of form |
|
1725 // fills |
|
1726 // the |
|
1727 // screen |
|
1728 // |
|
1729 // Assuming that A is focusable, and we are scrolling down, and also assuming |
|
1730 // that the string item is not focusable, we do not consider A when looking |
|
1731 // for focusable items, because we are scrolling down and A is already above |
|
1732 // the screen. |
|
1733 TInt CMIDForm::NextPartiallyVisibleRowWithFocusableItem(TDirection aDirection) |
|
1734 { |
|
1735 ASSERT(aDirection == EUp || aDirection == EDown); |
|
1736 |
|
1737 TInt startIdx = 0; |
|
1738 if (iFocused != KErrNotFound) |
|
1739 { |
|
1740 //If there is layout request pending, the array of rows is probably |
|
1741 //empty. So we need to do layout of form, which fills the array of rows. |
|
1742 //Then row, where current focused item is, will be found. |
|
1743 if (iRows.Count() == 0) |
|
1744 { |
|
1745 TrappedLayoutAndDraw(ETrue); |
|
1746 } |
|
1747 TInt row = Row(ControlItem(iFocused)); |
|
1748 if (row == KErrNotFound) |
|
1749 { |
|
1750 CMIDControlItem& ci = ControlItem(iFocused); |
|
1751 if (IsStringItem(ci)) |
|
1752 { |
|
1753 // find the first row either above or below (depends on direction) |
|
1754 // this unconstrained stringItem |
|
1755 CMIDStringItem& stringItem = |
|
1756 *(static_cast<CMIDStringItem*>(&ci)); |
|
1757 if (aDirection == EDown) |
|
1758 { |
|
1759 startIdx = FirstRowBelowUnconstrainedStringItem(stringItem); |
|
1760 } |
|
1761 else |
|
1762 { |
|
1763 startIdx = FirstRowAboveUnconstrainedStringItem(stringItem); |
|
1764 } |
|
1765 } |
|
1766 else |
|
1767 { |
|
1768 // shouldn't get here |
|
1769 ASSERT(EFalse); |
|
1770 } |
|
1771 } |
|
1772 else |
|
1773 { |
|
1774 startIdx = row + ((aDirection == EDown) ? 1 : -1); |
|
1775 } |
|
1776 } |
|
1777 else |
|
1778 { |
|
1779 // There is no focused item on Form (iFocused value is KErrNotFound). |
|
1780 // So we need to try to find another Item which could gain focus. |
|
1781 startIdx = FirstRowOnScreen(aDirection); |
|
1782 } |
|
1783 |
|
1784 if (startIdx == KErrNotFound) |
|
1785 { |
|
1786 return KErrNotFound; |
|
1787 } |
|
1788 |
|
1789 if (aDirection == EDown) |
|
1790 { |
|
1791 TInt idx = startIdx - 1; |
|
1792 TInt rowCount = iRows.Count(); |
|
1793 while (++idx < rowCount) |
|
1794 { |
|
1795 CMIDFormRow* row = iRows[idx]; |
|
1796 if (row->Position().iY > Height()) |
|
1797 { |
|
1798 break; |
|
1799 } |
|
1800 if (row->HasFocusableItemOnOrBelowScreen()) |
|
1801 { |
|
1802 return idx; |
|
1803 } |
|
1804 } |
|
1805 } |
|
1806 else |
|
1807 { |
|
1808 TInt idx = startIdx + 1; |
|
1809 while (--idx >= 0) |
|
1810 { |
|
1811 CMIDFormRow* row = iRows[idx]; |
|
1812 |
|
1813 if (row->HasFocusableItemOnOrAboveScreen()) |
|
1814 { |
|
1815 return idx; |
|
1816 } |
|
1817 |
|
1818 if ((row->Position().iY + row->Size().iHeight) < 0) |
|
1819 { |
|
1820 break; |
|
1821 } |
|
1822 } |
|
1823 } |
|
1824 |
|
1825 return KErrNotFound; |
|
1826 } |
|
1827 |
|
1828 // if aFromTop is false we look from the bottom up |
|
1829 TInt CMIDForm::FirstRowOnScreen(TDirection aDirection) |
|
1830 { |
|
1831 ASSERT(aDirection == EUp || aDirection == EDown); |
|
1832 |
|
1833 TInt idx = 0; |
|
1834 if (aDirection == EDown) |
|
1835 { |
|
1836 idx = -1; |
|
1837 TInt rowCount = iRows.Count(); |
|
1838 while (++idx < rowCount) |
|
1839 { |
|
1840 CMIDFormRow* row = iRows[idx]; |
|
1841 TInt bottom = row->Position().iY + row->Size().iHeight; |
|
1842 if (bottom > 0) |
|
1843 { |
|
1844 return idx; |
|
1845 } |
|
1846 } |
|
1847 } |
|
1848 else |
|
1849 { |
|
1850 idx = iRows.Count(); |
|
1851 while (--idx >= 0) |
|
1852 { |
|
1853 CMIDFormRow* row = iRows[idx]; |
|
1854 TInt top = row->Position().iY; |
|
1855 if (top < Height()) |
|
1856 { |
|
1857 return idx; |
|
1858 } |
|
1859 } |
|
1860 } |
|
1861 |
|
1862 return KErrNotFound; |
|
1863 } |
|
1864 |
|
1865 // Returns the item index of the next focusable item in the given direction. |
|
1866 // Note: this may return an object that is not on the current row if there is |
|
1867 // an unconstrained string item on the current row. |
|
1868 // |
|
1869 // -------- |
|
1870 // | | |
|
1871 // | A | |
|
1872 // | | -------- |
|
1873 // -------- -------- |
|
1874 // ----------------- |
|
1875 // __________ ------ |
|
1876 // | | |
|
1877 // | B | |
|
1878 // | | |
|
1879 // ------ |
|
1880 // In the above diagram we see a selectable item A, an unconstrained stringItem, |
|
1881 // and another selectable item B. If A has focus and the stringItem is not focusable |
|
1882 // then calling NextFocusableHorizontalIdx( ERight ) should return the index of B. |
|
1883 // If the string item is selectable then its index would get returned and a further |
|
1884 // call to NextFocusableHorizontalIdx( ERight ) would return the index of B. |
|
1885 // If B has focus calling NextFocusableHorizontalIdx( ELeft ) would simply return the |
|
1886 // index of the stringItem if it is selectable or A if not. |
|
1887 TInt CMIDForm::NextFocusableHorizontalIdx(TDirection aDirection) |
|
1888 { |
|
1889 ASSERT(aDirection == ELeft || aDirection == ERight); |
|
1890 |
|
1891 TInt idx = KErrNotFound; |
|
1892 |
|
1893 if (iFocused != KErrNotFound) |
|
1894 { |
|
1895 CMIDFormRow* rowPtr = NULL; |
|
1896 CMIDControlItem& controlItem = ControlItem(iFocused); |
|
1897 |
|
1898 TInt rowIdx = Row(controlItem, rowPtr); |
|
1899 |
|
1900 if (rowIdx != KErrNotFound) |
|
1901 { |
|
1902 |
|
1903 idx = rowPtr->Find(&controlItem); |
|
1904 |
|
1905 if (aDirection == ELeft) |
|
1906 { |
|
1907 while (--idx >= 0) |
|
1908 { |
|
1909 if (rowPtr->Item(idx)->IsSelectable()) |
|
1910 { |
|
1911 return ItemIndex(*(rowPtr->Item(idx))); |
|
1912 } |
|
1913 } |
|
1914 |
|
1915 } |
|
1916 else |
|
1917 { |
|
1918 // direction is ERight |
|
1919 while (++idx < rowPtr->NumItems()) |
|
1920 { |
|
1921 if (rowPtr->Item(idx)->IsSelectable()) |
|
1922 { |
|
1923 return ItemIndex(*(rowPtr->Item(idx))); |
|
1924 } |
|
1925 } |
|
1926 |
|
1927 } |
|
1928 } |
|
1929 else |
|
1930 { |
|
1931 // there is something focused but we failed to find a row index for it, |
|
1932 // so it is probably an unconstrained stringItem |
|
1933 if (aDirection == ELeft) |
|
1934 { |
|
1935 if (IsStringItem(controlItem)) |
|
1936 { |
|
1937 CMIDStringItem* si = static_cast<CMIDStringItem*>(&controlItem); |
|
1938 idx = FirstFocusableItemBeforeStartOfUnconstrainedStringItemIdx(*si); |
|
1939 return idx; |
|
1940 } |
|
1941 } |
|
1942 else |
|
1943 { |
|
1944 // direction ie ERight |
|
1945 if (IsStringItem(controlItem)) |
|
1946 { |
|
1947 CMIDStringItem* si = static_cast<CMIDStringItem*>(&controlItem); |
|
1948 idx = FirstFocusableItemOnLastLineOfUnconstrainedStringItemIdx(*si); |
|
1949 return idx; |
|
1950 } |
|
1951 } |
|
1952 } |
|
1953 } |
|
1954 |
|
1955 return KErrNotFound; |
|
1956 } |
|
1957 |
|
1958 /** Replaces the currently focused item. This is called when the focused item is removed |
|
1959 or it loses focusability, for example a string item that loses all its commands. So this |
|
1960 is always triggered by a java call, never by the user. We call the same methods that are |
|
1961 used by Scroll(), ie TryMovingFocusHorizontally() and TryMovingFocusVertically(). However |
|
1962 in this case we don't want the form to scroll if the focused item is not on screen. So |
|
1963 these two methods will move the focus if a focusable item is either completely or partially |
|
1964 visible on screen following the good direction (right-down for left to right devices and |
|
1965 vice-versa for right to left devices). TryMovingFocusVertically() will set the focused item |
|
1966 to KErrNotFound if no focusable item is currently visible. */ |
|
1967 void CMIDForm::ReplaceFocusedItem() |
|
1968 { |
|
1969 if (LayoutPending()) |
|
1970 { |
|
1971 DEBUG("CMIDForm::ReplaceFocusedItem - calling layout"); |
|
1972 TRAP_IGNORE(LayoutFormL()); |
|
1973 } |
|
1974 |
|
1975 CMIDForm::TDirection direction = (iInitialAlignment == MMIDItem::ERight) ? ELeft : ERight; |
|
1976 |
|
1977 if (!TryMovingFocusHorizontally(direction)) |
|
1978 { |
|
1979 if (iInitialAlignment == MMIDItem::ERight) |
|
1980 {//RIGHT TO LEFT |
|
1981 if (!TryMovingFocusVertically(direction == ELeft ? EDown : EUp, EFalse, EFalse)) |
|
1982 { |
|
1983 SetFocusedItem(KErrNotFound); |
|
1984 } |
|
1985 } |
|
1986 else |
|
1987 {//LEFT TO RIGHT |
|
1988 if (!TryMovingFocusVertically(direction == ELeft ? EUp : EDown, EFalse, EFalse)) |
|
1989 { |
|
1990 SetFocusedItem(KErrNotFound); |
|
1991 } |
|
1992 } |
|
1993 } |
|
1994 } |
|
1995 |
|
1996 void CMIDForm::SetFocusedItem(TInt aFocusIdx, TDirection aDirection /*= ENone*/, |
|
1997 TBool aDoScroll /*= ETrue*/) |
|
1998 { |
|
1999 TInt oldFocused = iFocused; |
|
2000 TInt focusIndexDelta = aFocusIdx - iFocused; |
|
2001 if (iFocused != KErrNotFound) |
|
2002 { // actions for the item loosing focus |
|
2003 CMIDControlItem& control = ControlItem(iFocused); |
|
2004 control.PostFocusTransferEvent(EFalse, aDirection); |
|
2005 // setting highlight must be called before setting focus |
|
2006 control.SetHighlight(EFalse); |
|
2007 control.SetFocus(EFalse); |
|
2008 UpdateItemCommands(NULL, NULL); |
|
2009 } |
|
2010 |
|
2011 iFocused = aFocusIdx; |
|
2012 |
|
2013 //If there is traverse from visible to invisible TextField, Form has to scroll first |
|
2014 //before actions for the item which gaining focus are done. Form scrolling provides |
|
2015 //position settings to all visible items in form. |
|
2016 //When TextField gains focus, cursor values are calculated. Because this step was done before |
|
2017 //scrolling, position of edwin in TextField was not set (@see CMIDFormRow::SizeChanged()) |
|
2018 //and cursor was drawn to wrong position. |
|
2019 //So Form has to scroll first -> this action provides proper position settings |
|
2020 //to item and items which are part of it (e.g. edwin in TextField) and after that |
|
2021 //changing focus makes proper cursor drawing. |
|
2022 if (focusIndexDelta != 0 && aDoScroll) |
|
2023 { |
|
2024 if (oldFocused != KErrNotFound) |
|
2025 { |
|
2026 aDirection = (focusIndexDelta > 0) ? EDown : EUp; |
|
2027 } |
|
2028 |
|
2029 ScrollToFocused(aDirection, EFalse); |
|
2030 } |
|
2031 |
|
2032 if (iFocused != KErrNotFound) |
|
2033 { // actions for the item gaining focus |
|
2034 CMIDControlItem& control = ControlItem(iFocused); |
|
2035 |
|
2036 SetHighlightBackgroundRects(); |
|
2037 |
|
2038 control.PostFocusTransferEvent(ETrue, aDirection); |
|
2039 control.SetHighlight(ETrue); |
|
2040 control.SetFocus(ETrue); |
|
2041 // msk: deliver also the possible MSK command to displayable |
|
2042 UpdateItemCommands(control.CommandList(), control.GetMSKCommand()); |
|
2043 } |
|
2044 } |
|
2045 |
|
2046 /** Updates the model of the scrollbar and moves the thumb. Scroll bar must have |
|
2047 already been layouted.*/ |
|
2048 void CMIDForm::UpdateScrollBar() |
|
2049 { |
|
2050 ASSERT(iSBFrame); |
|
2051 DEBUG_INT("CMIDForm::UpdateScrollBar - iScroll is %D", iScroll); |
|
2052 |
|
2053 TInt heightOfAllItems = HeightOfAllItems(); |
|
2054 TInt height = heightOfAllItems > Height() ? heightOfAllItems : Height(); |
|
2055 |
|
2056 TEikScrollBarModel vSbarModel(height, Height(), -iScroll); |
|
2057 iSBFrame->Tile(&vSbarModel); |
|
2058 iSBFrame->MoveVertThumbTo(-iScroll); |
|
2059 |
|
2060 iPopupController->HidePopup(); // hide info popup window if visible |
|
2061 } |
|
2062 |
|
2063 CMIDForm* CMIDForm::NewL(MMIDEnv& aEnv,MMIDDisplayable& aDisplayable) |
|
2064 { |
|
2065 CMIDForm* form = new(ELeave) CMIDForm(aEnv, static_cast<CMIDDisplayable&>(aDisplayable)); |
|
2066 CleanupStack::PushL(form); |
|
2067 form->ConstructL(); |
|
2068 CleanupStack::Pop(form); |
|
2069 return form; |
|
2070 } |
|
2071 |
|
2072 CMIDForm::CMIDForm(MMIDEnv& aEnv, CMIDDisplayable& aDisplayable) |
|
2073 : iDisplayable(aDisplayable), iEnv(&aEnv), iFocused(KErrNotFound), |
|
2074 iInitialAlignment(MMIDItem::ELeft), iHasScrolled(EFalse), |
|
2075 iLastFadeMessage(0) |
|
2076 { |
|
2077 } |
|
2078 |
|
2079 CMIDForm::~CMIDForm() |
|
2080 { |
|
2081 TRAP_IGNORE(DeleteAllItemsL()); |
|
2082 DeleteRows(); |
|
2083 iCurrentRow = NULL; |
|
2084 |
|
2085 delete iSBFrame; |
|
2086 SetItemsFormPointersToVal(NULL); |
|
2087 iItems.Close(); |
|
2088 iRows.Close(); |
|
2089 |
|
2090 delete iLayoutTimer; |
|
2091 delete iNoDataText; |
|
2092 |
|
2093 if (iBackgroundControlContext) |
|
2094 { |
|
2095 delete iBackgroundControlContext; |
|
2096 iBackgroundControlContext = NULL; |
|
2097 } |
|
2098 if (iHighlightedBackgroundCc) |
|
2099 { |
|
2100 delete iHighlightedBackgroundCc; |
|
2101 iHighlightedBackgroundCc = NULL; |
|
2102 } |
|
2103 |
|
2104 // Displayable is notified about content control deletion |
|
2105 iDisplayable.NotifyContentDestroyed(); |
|
2106 |
|
2107 delete iPopupController; |
|
2108 |
|
2109 if (iHighlightTimer) |
|
2110 { |
|
2111 iHighlightTimer->Cancel(); |
|
2112 } |
|
2113 delete iHighlightTimer; |
|
2114 |
|
2115 delete iPhysics; |
|
2116 } |
|
2117 |
|
2118 #include "javaoslayer.h" |
|
2119 |
|
2120 void CMIDForm::Draw(const TRect& aRect) const |
|
2121 { |
|
2122 if (!iStartUpTraceDone) |
|
2123 { |
|
2124 java::util::JavaOsLayer::startUpTrace("MIDP: CMIDForm::Draw starts", -1, -1); |
|
2125 } |
|
2126 if (LayoutPending()) |
|
2127 { |
|
2128 return; |
|
2129 } |
|
2130 |
|
2131 CWindowGc& gc = SystemGc(); |
|
2132 |
|
2133 MAknsSkinInstance* skin = AknsUtils::SkinInstance(); |
|
2134 AknsDrawUtils::Background(skin, iBackgroundControlContext, this, gc, aRect); |
|
2135 |
|
2136 // Draw focus highlight |
|
2137 if (iFocused != KErrNotFound) |
|
2138 { |
|
2139 TRect focusedRect = ControlItem(iFocused).Rect(); |
|
2140 if (focusedRect.Intersects(aRect)) |
|
2141 { |
|
2142 AknsDrawUtils::Background(AknsUtils::SkinInstance(), |
|
2143 iHighlightedBackgroundCc, this, |
|
2144 SystemGc(), focusedRect); |
|
2145 } |
|
2146 } |
|
2147 |
|
2148 // If there is no items, "No data" string is printed to the middle of the screen |
|
2149 if (iItems.Count() == 0) |
|
2150 { |
|
2151 TRAP_IGNORE(DrawNoDataStringL()); |
|
2152 } |
|
2153 if (!iStartUpTraceDone) |
|
2154 { |
|
2155 java::util::JavaOsLayer::startUpTrace("MIDP: CMIDForm::Draw done", -1, -1); |
|
2156 iStartUpTraceDone = ETrue; |
|
2157 } |
|
2158 } |
|
2159 |
|
2160 void CMIDForm::DrawNoDataStringL() const |
|
2161 { |
|
2162 CWindowGc& gc = SystemGc(); |
|
2163 |
|
2164 // Actual skin instance |
|
2165 MAknsSkinInstance* skin = AknsUtils::SkinInstance(); |
|
2166 |
|
2167 // If there is not the color fot the particular skin and id found, default (black) is used |
|
2168 TRgb color; |
|
2169 // Try to receive the color by skin and color Id, if not successful, black is used |
|
2170 TInt err = AknsUtils::GetCachedColor(skin, color, KAknsIIDQsnTextColors, EAknsCIQsnTextColorsCG6); |
|
2171 if (err != KErrNone) |
|
2172 { |
|
2173 color = AKN_LAF_COLOR(AknLayout::Title_pane_texts_Line_1(0, 0).iC); |
|
2174 } |
|
2175 |
|
2176 const CFont* font = CMIDFont::DefaultFont(CMIDFont::EDefaultTextId); |
|
2177 TInt textWidth = font->TextWidthInPixels(iNoDataText->Des()); |
|
2178 |
|
2179 // Rectangle for computing the center |
|
2180 TRect screenRect; |
|
2181 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EScreen, screenRect); |
|
2182 |
|
2183 // Centers the string to the middle of the screen |
|
2184 TInt x = (screenRect.Width() - textWidth) / 2; |
|
2185 TInt y = (iInnerHeight - font->HeightInPixels()) / 2; |
|
2186 TPoint point(x, y); |
|
2187 //Reserve extra space for biditext formatting |
|
2188 HBufC* bidiTextBuffer = HBufC::NewLC(iNoDataText->Size() + KAknBidiExtraSpacePerLine); |
|
2189 TPtr bidiText = bidiTextBuffer->Des(); |
|
2190 TPtr caption = iNoDataText->Des(); |
|
2191 bidiText = caption; |
|
2192 // Handle (bidi)text formatting for all languages |
|
2193 AknBidiTextUtils::ConvertToVisualAndClipL(bidiText, *font, textWidth, textWidth); |
|
2194 |
|
2195 gc.SetPenColor(color); |
|
2196 gc.UseFont(font); |
|
2197 gc.DrawText(bidiText, point); |
|
2198 CleanupStack::PopAndDestroy(bidiTextBuffer); |
|
2199 gc.DiscardFont(); |
|
2200 } |
|
2201 |
|
2202 |
|
2203 /** Request a layout operaiton. We must delete the rows if postponing layout |
|
2204 in case java side some of the controls have been deleted. Otherwise because those |
|
2205 controls may be on existing rows we would get a panic in a draw request outside |
|
2206 our control. By deleting the rows in the worse scenario we'll get a blank form |
|
2207 drawn temporarily until the next layout operation. */ |
|
2208 void CMIDForm::RequestLayoutL(TBool aImmediately /*= EFalse*/) |
|
2209 { |
|
2210 if (aImmediately) |
|
2211 { |
|
2212 iLayoutTimer->Cancel(); |
|
2213 LayoutAndDrawL(); |
|
2214 } |
|
2215 else |
|
2216 { |
|
2217 if (LayoutPending()) |
|
2218 { |
|
2219 TTime now; |
|
2220 now.HomeTime(); |
|
2221 |
|
2222 if (now.MicroSecondsFrom(iLayoutRequestTime) > KLayoutCap) |
|
2223 { |
|
2224 LayoutAndDrawL(); |
|
2225 } |
|
2226 else |
|
2227 { |
|
2228 iLayoutTimer->Cancel(); |
|
2229 } |
|
2230 } |
|
2231 else |
|
2232 { |
|
2233 iLayoutRequestTime.HomeTime(); |
|
2234 DeleteRows(); |
|
2235 } |
|
2236 |
|
2237 if (iLayoutRequestTime != -1) |
|
2238 { |
|
2239 iLayoutTimer->After(KLayoutTimeout); |
|
2240 } |
|
2241 } |
|
2242 } |
|
2243 |
|
2244 /** Return true if a layout request has been made. */ |
|
2245 TBool CMIDForm::LayoutPending() const |
|
2246 { |
|
2247 return (iLayoutRequestTime != -1) && (iLayoutTimer->IsActive()); |
|
2248 } |
|
2249 |
|
2250 /** |
|
2251 Layout the form, do scrolling and draw. Reset any previous layout request. |
|
2252 |
|
2253 @see RequestLayout(), LayoutPending(), LayoutFormL() and DoScroll() |
|
2254 */ |
|
2255 void CMIDForm::LayoutAndDrawL() |
|
2256 { |
|
2257 DEBUG("CMIDForm::LayoutAndDrawL"); |
|
2258 |
|
2259 LayoutFormL(); |
|
2260 |
|
2261 HandleItemVisibilityChange(); |
|
2262 UpdateScrollBar(); |
|
2263 SetHighlightBackgroundRects(); |
|
2264 DrawDeferred(); |
|
2265 |
|
2266 UpdatePhysics(); |
|
2267 } |
|
2268 |
|
2269 /** Call LayoutAndDrawL() inside a trap harness and log an error message if it |
|
2270 levaes. |
|
2271 |
|
2272 @param aOnlyIfPending Call LayoutAndDrawL() only if there is one pending, |
|
2273 @see LayoutPending(). By default this parameter is EFalse, i.e. always do layout |
|
2274 |
|
2275 @return The leave code returned by LayoutAndDrawL() |
|
2276 */ |
|
2277 TInt CMIDForm::TrappedLayoutAndDraw(TBool aOnlyIfPending /* = EFalse */) |
|
2278 { |
|
2279 if (aOnlyIfPending && !LayoutPending()) |
|
2280 { |
|
2281 return KErrNone; |
|
2282 } |
|
2283 |
|
2284 TRAPD(err, LayoutAndDrawL()); |
|
2285 return err; |
|
2286 } |
|
2287 |
|
2288 /* Called when the form becomes current and after the focus was set |
|
2289 * @see CMIDDisplayable::HandleCurrentL() |
|
2290 */ |
|
2291 void CMIDForm::HandleCurrentL(TBool aCurrent) |
|
2292 { |
|
2293 if (iFocused != KErrNotFound) |
|
2294 { |
|
2295 CMIDControlItem& control = ControlItem(iFocused); |
|
2296 control.HandleCurrentL(aCurrent); |
|
2297 } |
|
2298 |
|
2299 if (!aCurrent) |
|
2300 { |
|
2301 iPopupController->HidePopup(); |
|
2302 } |
|
2303 |
|
2304 #ifdef RD_SCALABLE_UI_V2 |
|
2305 iCanDragFocus = EFalse; |
|
2306 #endif |
|
2307 } |
|
2308 |
|
2309 void CMIDForm::ConstructL() |
|
2310 { |
|
2311 UpdateMemberVariables(); |
|
2312 |
|
2313 SetContainerWindowL(iDisplayable); |
|
2314 |
|
2315 iPopupController = CMIDPopupNoteController::NewL(); |
|
2316 |
|
2317 // Scroll initialisations |
|
2318 #ifdef RD_SCALABLE_UI_V2 |
|
2319 iSBFrame = new(ELeave) CEikScrollBarFrame(this, this, ETrue); |
|
2320 Window().SetPointerGrab(ETrue); |
|
2321 #else |
|
2322 iSBFrame = new(ELeave) CEikScrollBarFrame(this, NULL, ETrue); |
|
2323 #endif //RD_SCALABLE_UI_V2 |
|
2324 |
|
2325 iSBFrame->SetScrollBarVisibilityL( |
|
2326 CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto); |
|
2327 iSBFrame->CreateDoubleSpanScrollBarsL(ETrue, EFalse); |
|
2328 |
|
2329 // Background initialisation |
|
2330 iBackgroundControlContext = CAknsListBoxBackgroundControlContext::NewL( |
|
2331 KAknsIIDQsnBgAreaMainListGene, Rect(), ETrue, |
|
2332 KAknsIIDQsnBgColumnAB, Rect()) ; // Rect parameters are only place-holders |
|
2333 |
|
2334 // Background for highlighted item, frame rects are set later |
|
2335 iHighlightedBackgroundCc = CAknsFrameBackgroundControlContext::NewL( |
|
2336 KAknsIIDQsnFrInput, |
|
2337 TRect(), TRect(), ETrue); |
|
2338 |
|
2339 iDisplayable.SetComponentL(*this); |
|
2340 |
|
2341 // get the layout from shared data so we can tell what our |
|
2342 // initial alignment should be |
|
2343 TInt layoutId = 0; |
|
2344 |
|
2345 CRepository* repository = CRepository::NewL(KCRUidAvkon); |
|
2346 repository->Get(KAknLayoutId, layoutId); |
|
2347 delete repository; |
|
2348 |
|
2349 if (layoutId == EAknLayoutIdABRW) |
|
2350 { |
|
2351 iInitialAlignment = MMIDItem::ERight; |
|
2352 } |
|
2353 |
|
2354 iLayoutTimer = CTimeOutTimer::NewL(CActive::EPriorityIdle, *this); |
|
2355 iNoDataText = iEikonEnv->AllocReadResourceL(R_AVKON_NO_DATA); |
|
2356 |
|
2357 #ifdef RD_TACTILE_FEEDBACK |
|
2358 iFeedback = MTouchFeedback::Instance(); |
|
2359 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
2360 UpdateTactileFeedbackDensity(); |
|
2361 #endif // RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
2362 #endif // RD_TACTILE_FEEDBACK |
|
2363 |
|
2364 //index of pointed control is set to not active |
|
2365 iIndexPointedControl=-1; |
|
2366 |
|
2367 if (CMIDFormPhysics::FeatureEnabled()) |
|
2368 { |
|
2369 iPhysics = CMIDFormPhysics::NewL(*this); |
|
2370 |
|
2371 // Destroy iPhysics immediately if physics is not allowed. |
|
2372 // This should happen in error situation only, when implementation |
|
2373 // dll couldn't be loaded although the feature was enabled. |
|
2374 if (iPhysics && !iPhysics->PhysicsAllowed()) |
|
2375 { |
|
2376 delete iPhysics; |
|
2377 iPhysics = NULL; |
|
2378 } |
|
2379 else |
|
2380 { |
|
2381 iHighlightTimer = CPeriodic::NewL(CActive::EPriorityStandard); |
|
2382 } |
|
2383 } |
|
2384 |
|
2385 LayoutAndDrawL(); |
|
2386 } |
|
2387 |
|
2388 void CMIDForm::UpdateMemberVariables() |
|
2389 { |
|
2390 TAknLayoutRect mainMidpPane; |
|
2391 |
|
2392 #ifdef RD_JAVA_S60_RELEASE_9_2 |
|
2393 TRect mainPaneRect; |
|
2394 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, mainPaneRect); |
|
2395 mainMidpPane.LayoutRect(mainPaneRect, |
|
2396 AknLayoutScalable_Avkon::main_midp_pane().LayoutLine()); |
|
2397 #else |
|
2398 mainMidpPane.LayoutRect(iEikonEnv->ScreenDevice()->SizeInPixels(), |
|
2399 AknLayoutScalable_Avkon::main_midp_pane().LayoutLine()); |
|
2400 #endif // RD_JAVA_S60_RELEASE_9_2 |
|
2401 |
|
2402 TInt variety = Layout_Meta_Data::IsLandscapeOrientation() ? 1 : 0; |
|
2403 iMidpFormRect.LayoutRect(mainMidpPane.Rect(), |
|
2404 AknLayoutScalable_Avkon::midp_form_pane(variety).LayoutLine()); |
|
2405 |
|
2406 TAknLayoutRect listForm2MidpPane; |
|
2407 listForm2MidpPane.LayoutRect(iMidpFormRect.Rect(), |
|
2408 AknLayoutScalable_Avkon::list_form2_midp_pane().LayoutLine()); |
|
2409 |
|
2410 iFormRect.LayoutRect(listForm2MidpPane.Rect(), |
|
2411 AknLayoutScalable_Avkon::form2_midp_field_pane().LayoutLine()); |
|
2412 |
|
2413 iInnerWidth = iFormRect.Rect().Width(); |
|
2414 |
|
2415 iInnerHeight = iFormRect.Rect().Height(); |
|
2416 iFormHeight = iMidpFormRect.Rect().Height(); |
|
2417 } |
|
2418 |
|
2419 MMIDItem* CMIDForm::CurrentItem() const |
|
2420 { |
|
2421 return iFocused == KErrNotFound ? NULL : iItems[iFocused]; |
|
2422 } |
|
2423 |
|
2424 CMIDItem& CMIDForm::Item(TInt aIndex) const |
|
2425 { |
|
2426 MMIDItem* item = iItems[aIndex]; |
|
2427 return ControlItem(item->Type()); |
|
2428 } |
|
2429 |
|
2430 CMIDControlItem& CMIDForm::ControlItem(TInt aIndex) const |
|
2431 { |
|
2432 return ControlItem(iItems[aIndex]); |
|
2433 } |
|
2434 |
|
2435 CMIDControlItem& CMIDForm::ControlItem(MMIDItem* aMMidItem) |
|
2436 { |
|
2437 CMIDControlItem* base = NULL; |
|
2438 TInt type = (TInt) aMMidItem->Type(); |
|
2439 switch (type) |
|
2440 { |
|
2441 case MMIDComponent::EImageItem: |
|
2442 base = static_cast<CMIDImageItem*>(aMMidItem); |
|
2443 break; |
|
2444 case MMIDComponent::EStringItem: |
|
2445 base = static_cast<CMIDStringItem*>(aMMidItem); |
|
2446 break; |
|
2447 case MMIDComponent::ESpacer: |
|
2448 base = static_cast<CMIDSpacer*>(aMMidItem); |
|
2449 break; |
|
2450 case MMIDComponent::EGauge: |
|
2451 base = static_cast<CMIDGaugeItem*>(aMMidItem); |
|
2452 break; |
|
2453 case MMIDComponent::ETextField: |
|
2454 base = static_cast<CMIDTextFieldItem*>(aMMidItem); |
|
2455 break; |
|
2456 case MMIDComponent::EChoiceGroup: |
|
2457 base = static_cast<CMIDChoiceGroupItem*>(aMMidItem); |
|
2458 break; |
|
2459 case MMIDComponent::EDateField: |
|
2460 base = static_cast<CMIDDateFieldItem*>(aMMidItem); |
|
2461 break; |
|
2462 case MMIDComponent::ECustomItem: |
|
2463 base = static_cast<CMIDCustomItem*>(aMMidItem); |
|
2464 break; |
|
2465 default: |
|
2466 ASSERT(EFalse); |
|
2467 break; |
|
2468 } |
|
2469 |
|
2470 return *base; |
|
2471 } |
|
2472 |
|
2473 TInt CMIDForm::Index(CCoeControl* aControl) const |
|
2474 { |
|
2475 TInt itemCount = iItems.Count(); |
|
2476 for (TInt i=0; i < itemCount; i++) |
|
2477 { |
|
2478 CCoeControl* control = static_cast<CCoeControl*>(&(ControlItem(i))); |
|
2479 if (control == aControl) |
|
2480 { |
|
2481 return i; |
|
2482 } |
|
2483 } |
|
2484 return KErrNotFound; |
|
2485 } |
|
2486 |
|
2487 TInt CMIDForm::FormWidth() |
|
2488 { |
|
2489 return CMIDForm::StaticFormRect().Width(); |
|
2490 } |
|
2491 |
|
2492 /*static*/ TRect CMIDForm::StaticFormRect() |
|
2493 { |
|
2494 TInt variety = Layout_Meta_Data::IsLandscapeOrientation() ? 1 : 0; |
|
2495 TRect mainPaneRect; |
|
2496 |
|
2497 #ifdef RD_JAVA_S60_RELEASE_9_2 |
|
2498 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, mainPaneRect); |
|
2499 #else |
|
2500 mainPaneRect = iAvkonAppUi->ApplicationRect(); |
|
2501 #endif // RD_JAVA_S60_RELEASE_9_2 |
|
2502 |
|
2503 TAknLayoutRect mainMidpPane; |
|
2504 mainMidpPane.LayoutRect(mainPaneRect, |
|
2505 AknLayoutScalable_Avkon::main_midp_pane().LayoutLine()); |
|
2506 |
|
2507 TAknLayoutRect midpFormRect; |
|
2508 midpFormRect.LayoutRect(mainMidpPane.Rect(), |
|
2509 AknLayoutScalable_Avkon::midp_form_pane(variety).LayoutLine()); |
|
2510 |
|
2511 TAknLayoutRect listForm2MidpPane; |
|
2512 listForm2MidpPane.LayoutRect(midpFormRect.Rect(), |
|
2513 AknLayoutScalable_Avkon::list_form2_midp_pane().LayoutLine()); |
|
2514 |
|
2515 TAknLayoutRect formRect; |
|
2516 formRect.LayoutRect(listForm2MidpPane.Rect(), |
|
2517 AknLayoutScalable_Avkon::form2_midp_field_pane().LayoutLine()); |
|
2518 |
|
2519 return formRect.Rect(); |
|
2520 } |
|
2521 |
|
2522 |
|
2523 TBool CMIDForm::IsCurrentItem(CMIDItem* aItem) const |
|
2524 { |
|
2525 return (iFocused != KErrNotFound) && |
|
2526 (iFocused == Index(static_cast<CCoeControl*>(aItem))); |
|
2527 } |
|
2528 |
|
2529 |
|
2530 void CMIDForm::HandleControlEventL(CCoeControl* aControl,TCoeEvent aEventType) |
|
2531 { |
|
2532 switch (aEventType) |
|
2533 { |
|
2534 case MCoeControlObserver::EEventStateChanged: |
|
2535 { |
|
2536 TInt index = KErrNotFound; |
|
2537 User::LeaveIfError(index = Index(aControl)); |
|
2538 MMIDComponent::TType type = iItems[index]->Type(); |
|
2539 if (type == EStringItem || type == EImageItem || type == ECustomItem) |
|
2540 { |
|
2541 // These don't change state in the MIDP sense, so it must be a button |
|
2542 // press so we need to post a default command event, if there is one |
|
2543 |
|
2544 // msk: this is needed if msk is not enabled |
|
2545 PostDefaultItemCommandEvent(index); |
|
2546 } |
|
2547 else |
|
2548 { |
|
2549 iEnv->PostJavaEvent(*this,EDisplayable,index); |
|
2550 } |
|
2551 } |
|
2552 break; |
|
2553 case MCoeControlObserver::EEventRequestFocus: |
|
2554 if (!aControl->IsNonFocusing()) |
|
2555 { |
|
2556 SetFocusedItem(Index(aControl)); |
|
2557 } |
|
2558 break; |
|
2559 default: |
|
2560 break; |
|
2561 } |
|
2562 } |
|
2563 |
|
2564 |
|
2565 /* |
|
2566 * Pointer events from different Items are are routed via this function to private HandleControlEventL. |
|
2567 * Focus is not accepted if Item is not focusable. |
|
2568 */ |
|
2569 void CMIDForm::HandleTouchControlEventL(CCoeControl* aControl,TCoeEvent aEventType) |
|
2570 { |
|
2571 |
|
2572 CMIDControlItem& ci = ControlItem(Index(aControl)); |
|
2573 if (ci.IsSelectable()) |
|
2574 { |
|
2575 HandleControlEventL(aControl, aEventType); |
|
2576 } |
|
2577 } |
|
2578 |
|
2579 |
|
2580 void CMIDForm::TimerExpired() |
|
2581 { |
|
2582 TrappedLayoutAndDraw(); |
|
2583 } |
|
2584 |
|
2585 /* |
|
2586 * Called whenever something's happened which could change the visibility of an item |
|
2587 * controls. e.g. when made current, when update Items, when scroll. |
|
2588 */ |
|
2589 void CMIDForm::HandleItemVisibilityChange() |
|
2590 { |
|
2591 |
|
2592 // CUSTOM ITEM ONLY |
|
2593 TInt count = iItems.Count(); |
|
2594 for (TInt i=0; i<count; i++) |
|
2595 { |
|
2596 if (iItems[i]->Type() == MMIDComponent::ECustomItem) |
|
2597 { |
|
2598 // this will get the CustomItem's FocusChanged method called which will cause |
|
2599 // some visibility events to be sent |
|
2600 CMIDControlItem& ci = ControlItem(i); |
|
2601 ((CMIDCustomItem&) ci).HandleVisibilityChange(); |
|
2602 } |
|
2603 } |
|
2604 // END CUSTOM ITEM |
|
2605 |
|
2606 } |
|
2607 |
|
2608 /** Handles an item size change event. This is called by within the plugin, not by java |
|
2609 side unlike RefreshItemL(TInt). |
|
2610 |
|
2611 First of all we check if there is a layout pending operation. |
|
2612 If there is one we don't do anything. This is because this method is called during |
|
2613 control creation when items are inserted in the form. However, it is also called later |
|
2614 on when the control is already displaying and its size changes. During control creation |
|
2615 we should do a delayed layout (for performance reasons) wheras if we delay layout in the |
|
2616 second case we get an unpleasant redraw effect because the item control usually draws |
|
2617 immediately. So we should try and layout+draw immediately in the second case. |
|
2618 We distinguish between the two cases by checking if there is a layout |
|
2619 operation (which is requested by InsertItemL()). Also, in the second case, instead of |
|
2620 doing a full LayoutAndDrawL() we only resize elements already assigned to rows and |
|
2621 update the scroll bars. And then we draw. This is a bit more efficient than recreating |
|
2622 the rows. Because this method is only called by items that fill an entire row anyway, |
|
2623 we shouln't need to re-create rows. |
|
2624 */ |
|
2625 void CMIDForm::RefreshItemL(MMIDItem* aItem) |
|
2626 { |
|
2627 TInt index = iItems.Find(aItem); |
|
2628 |
|
2629 if (!LayoutPending() && index != KErrNotFound) |
|
2630 { |
|
2631 SizeItemsInFormRowsL(); |
|
2632 SetRowExtentsWithRespectToScrolledLocation(); |
|
2633 |
|
2634 if ((aItem->Type() == MMIDComponent::ETextField) && (index == iFocused)) |
|
2635 { |
|
2636 CMIDTextFieldItem* tf = static_cast<CMIDTextFieldItem*>(aItem); |
|
2637 TPoint p; |
|
2638 TBool success = tf->GetCursorPosL(p); |
|
2639 if (success) |
|
2640 { |
|
2641 if (p.iY < 0) |
|
2642 { |
|
2643 RawScrollRelative(p.iY + 10); |
|
2644 } |
|
2645 else if (p.iY > Height()) |
|
2646 { |
|
2647 RawScrollRelative(Height() - (p.iY + 10)); |
|
2648 } |
|
2649 } |
|
2650 } |
|
2651 RawScrollFinalize(ETrue); |
|
2652 } |
|
2653 } |
|
2654 |
|
2655 /** |
|
2656 * If the item at aIndex has a default command set for it, then this will be invoked and True |
|
2657 * will be returned. False if a command has not been posted |
|
2658 */ |
|
2659 // msk: this method is needed if msk is not enabled |
|
2660 TBool CMIDForm::PostDefaultItemCommandEvent(TInt aIndex) |
|
2661 { |
|
2662 if (aIndex != KErrNotFound) |
|
2663 { |
|
2664 CMIDCommand* defaultCommand = ControlItem(iItems[aIndex]).DefaultCommand(); |
|
2665 if (defaultCommand) |
|
2666 { |
|
2667 iEnv->PostJavaEvent(*iItems[aIndex],EItem,ECommand,defaultCommand->Id()); |
|
2668 return ETrue; |
|
2669 } |
|
2670 } |
|
2671 return EFalse; |
|
2672 } |
|
2673 |
|
2674 void CMIDForm::AddItemToFormL(CMIDControlItem& aControlItem) |
|
2675 { |
|
2676 aControlItem.SetForm(this); |
|
2677 aControlItem.SetContainerWindowL(*this); |
|
2678 aControlItem.ItemAddedToFormL(); |
|
2679 } |
|
2680 |
|
2681 void CMIDForm::RemoveItemFromForm(CMIDControlItem& aControlItem) |
|
2682 { |
|
2683 aControlItem.MakeVisible(EFalse); |
|
2684 aControlItem.SetPosition(TPoint(-Width(), 0)); |
|
2685 // Item is not allowed to access container window from now. |
|
2686 aControlItem.ItemRemovedFromForm(); |
|
2687 aControlItem.SetForm(NULL); |
|
2688 } |
|
2689 |
|
2690 void CMIDForm::UpdateItemCommands(CMIDCommandList* aCommandList, CMIDCommand* aMSKCommand) |
|
2691 { |
|
2692 iDisplayable.SetItemCommandList(aCommandList, aMSKCommand); |
|
2693 } |
|
2694 |
|
2695 // msk: this method is needed if msk is not enabled |
|
2696 TBool CMIDForm::DoDefaultCommand() |
|
2697 { |
|
2698 if (iFocused != KErrNotFound) |
|
2699 { |
|
2700 CMIDControlItem& ci = ControlItem(iFocused); |
|
2701 |
|
2702 CMIDCommand* defaultCommand = ci.DefaultCommand(); |
|
2703 if (defaultCommand) |
|
2704 { |
|
2705 iEnv->PostJavaEvent(*(iItems[iFocused]), EItem, ECommand, defaultCommand->Id()); |
|
2706 return ETrue; |
|
2707 } |
|
2708 } |
|
2709 |
|
2710 return EFalse; |
|
2711 } |
|
2712 |
|
2713 |
|
2714 TInt CMIDForm::Row(const CMIDControlItem& aItem) const |
|
2715 { |
|
2716 CMIDFormRow* rowPtr = NULL; |
|
2717 return Row(aItem, rowPtr); |
|
2718 } |
|
2719 |
|
2720 TInt CMIDForm::Row(const CMIDControlItem& aItem, CMIDFormRow*& aRowPtr) const |
|
2721 { |
|
2722 aRowPtr = NULL; |
|
2723 TInt rowCount = iRows.Count(); |
|
2724 for (TInt i=0; i < rowCount; i++) |
|
2725 { |
|
2726 TInt idx = iRows[i]->Find(&aItem); |
|
2727 if (idx != KErrNotFound) |
|
2728 { |
|
2729 aRowPtr = iRows[i]; |
|
2730 return i; |
|
2731 } |
|
2732 } |
|
2733 return KErrNotFound; |
|
2734 } |
|
2735 |
|
2736 CMIDForm::TDirection CMIDForm::ConvertKeyToDirection(TUint aCode) |
|
2737 { |
|
2738 switch (aCode) |
|
2739 { |
|
2740 case EKeyDownArrow: |
|
2741 return EDown; |
|
2742 case EKeyUpArrow: |
|
2743 return EUp; |
|
2744 case EKeyLeftArrow: |
|
2745 return ELeft; |
|
2746 case EKeyRightArrow: |
|
2747 return ERight; |
|
2748 default: |
|
2749 return ENone; |
|
2750 } |
|
2751 } |
|
2752 |
|
2753 // returns the index of a CMIDControlItem in the iItems array. If the |
|
2754 // CMIDControlItem is a CMIDLabelContainerItem, then the index |
|
2755 // of the stringItem associated with it is returned. |
|
2756 TInt CMIDForm::ItemIndex(CMIDControlItem& aItem) |
|
2757 { |
|
2758 MMIDItem* item = aItem.iMMidItem; |
|
2759 |
|
2760 TInt idx = 0; |
|
2761 TInt itemCount = iItems.Count(); |
|
2762 while (idx < itemCount) |
|
2763 { |
|
2764 if (iItems[idx] == item) |
|
2765 { |
|
2766 return idx; |
|
2767 } |
|
2768 idx++; |
|
2769 } |
|
2770 |
|
2771 // OK, so we didn't find it. Maybe it is a CMIDLabelContainerItem |
|
2772 if (IsLabelContainerItem(aItem)) |
|
2773 { |
|
2774 CMIDLabelContainerItem* usil = static_cast<CMIDLabelContainerItem*>(&aItem); |
|
2775 return ItemIndex(usil->StringItem()); |
|
2776 } |
|
2777 |
|
2778 return KErrNotFound; |
|
2779 } |
|
2780 |
|
2781 // this method will return the index of the row ABOVE the indicated unconstrained string item |
|
2782 // if the string item was on the top row then KErrNotFound is returned, also if the string item |
|
2783 // could not be found or was not an unconstrained string item. |
|
2784 TInt CMIDForm::FirstRowAboveUnconstrainedStringItem(CMIDStringItem& aStringItem) const |
|
2785 { |
|
2786 TInt idx = FirstRowOfUnconstrainedStringItem(aStringItem); |
|
2787 return (idx == KErrNotFound) ? KErrNotFound : idx - 1; |
|
2788 } |
|
2789 |
|
2790 // returns the index of the first row of an unconstrained string item. |
|
2791 // Returns KErrNotFound if the string item could not be found (or if it was not |
|
2792 // an unconstrained string item). |
|
2793 TInt CMIDForm::FirstRowOfUnconstrainedStringItem(CMIDStringItem& aStringItem) const |
|
2794 { |
|
2795 TInt idx = -1; |
|
2796 TInt rowCount = iRows.Count(); |
|
2797 while (++idx < rowCount) |
|
2798 { |
|
2799 CMIDFormRow* row = iRows[idx]; |
|
2800 TInt innerIdx = -1; |
|
2801 while (++innerIdx < row->NumItems()) |
|
2802 { |
|
2803 CMIDControlItem* ci = row->Item(innerIdx); |
|
2804 if (IsLabelContainerItem(*ci)) |
|
2805 { |
|
2806 CMIDLabelContainerItem* ucsi = static_cast<CMIDLabelContainerItem*>(ci); |
|
2807 if (&(ucsi->StringItem()) == &aStringItem) |
|
2808 { |
|
2809 return idx; |
|
2810 } |
|
2811 } |
|
2812 } |
|
2813 } |
|
2814 return KErrNotFound; |
|
2815 } |
|
2816 |
|
2817 TInt CMIDForm::FirstRowBelowUnconstrainedStringItem(CMIDStringItem& aStringItem) const |
|
2818 { |
|
2819 TInt idx = iRows.Count(); |
|
2820 TInt rowCount = iRows.Count(); |
|
2821 while (--idx < rowCount) |
|
2822 { |
|
2823 CMIDFormRow* row = iRows[idx]; |
|
2824 TInt innerIdx = -1; |
|
2825 while (++innerIdx < row->NumItems()) |
|
2826 { |
|
2827 CMIDControlItem* ci = row->Item(innerIdx); |
|
2828 if (IsLabelContainerItem(*ci)) |
|
2829 { |
|
2830 CMIDLabelContainerItem* ucsi = static_cast<CMIDLabelContainerItem*>(ci); |
|
2831 if (&(ucsi->StringItem()) == &aStringItem) |
|
2832 { |
|
2833 return ((idx + 1) >= rowCount) ? KErrNotFound : idx + 1; |
|
2834 } |
|
2835 } |
|
2836 } |
|
2837 } |
|
2838 return KErrNotFound; |
|
2839 } |
|
2840 |
|
2841 TInt CMIDForm::FirstFocusableItemBeforeStartOfUnconstrainedStringItemIdx(CMIDStringItem& aStringItem) |
|
2842 { |
|
2843 TInt rowIdx = FirstRowOfUnconstrainedStringItem(aStringItem); |
|
2844 if (rowIdx != KErrNotFound) |
|
2845 { |
|
2846 CMIDFormRow* row = iRows[rowIdx]; |
|
2847 TInt idxOnRow = row->NumItems(); |
|
2848 while (--idxOnRow >= 0) // search backward along the row for the unconstrained string item |
|
2849 // we probably could assume it is the last element |
|
2850 { |
|
2851 CMIDControlItem* ci = row->Item(idxOnRow); |
|
2852 if (IsLabelContainerItem(*ci)) |
|
2853 { |
|
2854 CMIDLabelContainerItem* usil = static_cast<CMIDLabelContainerItem*>(ci); |
|
2855 CMIDStringItem* si = &(usil->StringItem()); |
|
2856 if (si == &aStringItem) |
|
2857 { |
|
2858 break; |
|
2859 } |
|
2860 } |
|
2861 } |
|
2862 if (idxOnRow > 0) |
|
2863 { |
|
2864 // there are some items on the row before the start of the unconstrained string item |
|
2865 while (--idxOnRow >= 0) // search backward along the row for the first focusable item |
|
2866 { |
|
2867 CMIDControlItem* ci = row->Item(idxOnRow); |
|
2868 if (ci->IsSelectable()) |
|
2869 { |
|
2870 return ItemIndex(*ci); |
|
2871 } |
|
2872 } |
|
2873 } |
|
2874 } |
|
2875 return KErrNotFound; |
|
2876 } |
|
2877 |
|
2878 TInt CMIDForm::FirstFocusableItemOnLastLineOfUnconstrainedStringItemIdx(CMIDStringItem& aStringItem) |
|
2879 { |
|
2880 TInt rowIdx = FirstRowBelowUnconstrainedStringItem(aStringItem) - 1; |
|
2881 |
|
2882 if (rowIdx == -2) |
|
2883 { |
|
2884 rowIdx = iRows.Count() -1; |
|
2885 } |
|
2886 |
|
2887 if (rowIdx > KErrNotFound) // if FirstRowBelowUnconstrainedStringItem returned KErrNotFound then we have -2 so check with '>' |
|
2888 { |
|
2889 CMIDFormRow* row = iRows[rowIdx]; |
|
2890 TInt idxOnRow = -1; |
|
2891 |
|
2892 TBool found = EFalse; |
|
2893 while (++idxOnRow < row->NumItems()) |
|
2894 { |
|
2895 CMIDControlItem* ci = row->Item(idxOnRow); |
|
2896 |
|
2897 if (ControlBelongsToSameUnconstrainedItem(ci,aStringItem)) |
|
2898 {//ok we found our item, if the next one is selectable we return |
|
2899 found = ETrue; |
|
2900 } |
|
2901 else if (found && ci->IsSelectable()) |
|
2902 { |
|
2903 return ItemIndex(*ci); |
|
2904 } |
|
2905 } |
|
2906 } |
|
2907 return KErrNotFound; |
|
2908 } |
|
2909 |
|
2910 /** Return true if aCi belongs to the same unconstrained string item (aStringItem) */ |
|
2911 TBool CMIDForm::ControlBelongsToSameUnconstrainedItem(CMIDControlItem* aCi, CMIDStringItem& aStringItem) const |
|
2912 { |
|
2913 if (IsLabelContainerItem(*aCi)) |
|
2914 { |
|
2915 CMIDLabelContainerItem* usil = static_cast<CMIDLabelContainerItem*>(aCi); |
|
2916 if (&(usil->StringItem()) == &aStringItem) |
|
2917 { |
|
2918 return ETrue; |
|
2919 } |
|
2920 } |
|
2921 |
|
2922 return EFalse; |
|
2923 } |
|
2924 |
|
2925 /** */ |
|
2926 void CMIDForm::RemoveDeletedItem(CMIDControlItem& aItem) |
|
2927 { |
|
2928 iFocused = KErrNotFound; |
|
2929 TInt i=-1; |
|
2930 TInt rowCount = iRows.Count(); |
|
2931 while (++i < rowCount) |
|
2932 { |
|
2933 CMIDFormRow* row = iRows[i]; |
|
2934 if (row->RemoveItemIfExists(aItem)) |
|
2935 { |
|
2936 break; |
|
2937 } |
|
2938 } |
|
2939 |
|
2940 i = -1; |
|
2941 TInt itemCount = iItems.Count(); |
|
2942 while (++i < itemCount) |
|
2943 { |
|
2944 if (aItem.iMMidItem) |
|
2945 { |
|
2946 if (aItem.iMMidItem == iItems[i]) |
|
2947 { |
|
2948 iItems.Remove(i); |
|
2949 break; |
|
2950 } |
|
2951 } |
|
2952 } |
|
2953 |
|
2954 } |
|
2955 |
|
2956 |
|
2957 ///////////////////////////////////////////////////////////////////////////////////////// |
|
2958 // new layout methods |
|
2959 ///////////////////////////////////////////////////////////////////////////////////////// |
|
2960 |
|
2961 // does the layout for the entire form |
|
2962 void CMIDForm::LayoutFormL() |
|
2963 { |
|
2964 DEBUG("CMIDForm::LayoutFormL"); |
|
2965 |
|
2966 if (LayoutPending()) |
|
2967 { |
|
2968 iLayoutRequestTime = -1; |
|
2969 iLayoutTimer->Cancel(); |
|
2970 } |
|
2971 |
|
2972 TReal prevHeight = HeightOfAllItems() - Height(); |
|
2973 TInt prevFocusedYPos = 0; // by default it is on top of screen |
|
2974 TInt focusedItem = iFocused; |
|
2975 |
|
2976 if (focusedItem != KErrNotFound) |
|
2977 { |
|
2978 TRect rect = GetControlRect(focusedItem); |
|
2979 prevFocusedYPos = rect.iTl.iY; |
|
2980 } |
|
2981 |
|
2982 |
|
2983 // scroll bar layouting |
|
2984 AknLayoutUtils::LayoutVerticalScrollBar(iSBFrame, Rect(), |
|
2985 AknLayoutScalable_Avkon::scroll_pane_cp51().LayoutLine()); |
|
2986 ResetItemsPreferredSizes(); |
|
2987 |
|
2988 // this prevents items from calling layout recursively |
|
2989 SetItemsFormPointersToVal(NULL); |
|
2990 |
|
2991 AssignItemsToRowsL(); |
|
2992 SizeItemsInFormRowsL(); |
|
2993 |
|
2994 SetItemsFormPointersToVal(this); |
|
2995 |
|
2996 SetRowExtentsWithRespectToScrolledLocation(); |
|
2997 |
|
2998 TReal newHeight = HeightOfAllItems() - Height(); |
|
2999 |
|
3000 if (newHeight != prevHeight) |
|
3001 { |
|
3002 // layout has changed significantly, but we need to keep focused component scrolled so that |
|
3003 // user sees it at the same level in viewport |
|
3004 TInt newFocusedYPos = 0; |
|
3005 if (focusedItem != KErrNotFound) |
|
3006 { |
|
3007 TRect rect = GetControlRect(focusedItem); |
|
3008 newFocusedYPos = rect.iTl.iY; |
|
3009 TInt delta = prevFocusedYPos - newFocusedYPos; |
|
3010 if (iScroll != 0) |
|
3011 { |
|
3012 // correct only if not on top of window |
|
3013 ScrollRelative(delta); |
|
3014 } |
|
3015 } |
|
3016 else |
|
3017 { |
|
3018 if (newHeight < prevHeight) |
|
3019 { |
|
3020 // no focused item, just try to keep same component visible |
|
3021 iScroll = newHeight > 0 ? ((TReal) iScroll * (newHeight / prevHeight)) : 0; |
|
3022 } |
|
3023 } |
|
3024 |
|
3025 SetRowExtentsWithRespectToScrolledLocation(); |
|
3026 } |
|
3027 } |
|
3028 |
|
3029 void CMIDForm::ResetItemsPreferredSizes() |
|
3030 { |
|
3031 TInt itemCount = iItems.Count(); |
|
3032 for (TInt i=0; i < itemCount; i++) |
|
3033 { |
|
3034 CMIDControlItem& ci = ControlItem(i); |
|
3035 ci.ResetPreferredSize(); |
|
3036 } |
|
3037 } |
|
3038 |
|
3039 void CMIDForm::SetItemsFormPointersToVal(CMIDForm* aVal) |
|
3040 { |
|
3041 TInt itemCount = iItems.Count(); |
|
3042 for (TInt i=0; i < itemCount; i++) |
|
3043 { |
|
3044 CMIDControlItem& ci = ControlItem(i); |
|
3045 ci.SetForm(aVal); |
|
3046 } |
|
3047 } |
|
3048 |
|
3049 /** If an items preferred size is zero |
|
3050 we shouldn't add it to the form row and so we skip it */ |
|
3051 TBool CMIDForm::SkipNullItem(TInt aIndex) |
|
3052 { |
|
3053 CMIDControlItem& ci = ControlItem(iItems[aIndex]); |
|
3054 if (ci.PreferredSize() == TSize(0, 0)) |
|
3055 { |
|
3056 if (iFocused == aIndex) |
|
3057 { |
|
3058 SetFocusedItem(KErrNotFound); |
|
3059 } |
|
3060 |
|
3061 return ETrue; |
|
3062 } |
|
3063 |
|
3064 return EFalse; |
|
3065 } |
|
3066 |
|
3067 /** |
|
3068 If the current row index is the same as the row count, |
|
3069 create and append to iRows a new row and store it into |
|
3070 iCurrentRow. Increment the current row index. Also reset |
|
3071 the current alignment. |
|
3072 */ |
|
3073 void CMIDForm::CreateNewRowAndSetAsCurrentL() |
|
3074 { |
|
3075 CMIDFormRow* row = CMIDFormRow::NewL(*this); |
|
3076 CleanupStack::PushL(row); |
|
3077 |
|
3078 User::LeaveIfError(iRows.Append(row)); |
|
3079 CleanupStack::Pop(row); |
|
3080 |
|
3081 iCurrentRow = row; |
|
3082 iCurrentRow->SetAlignment(iCurrentAlignment); |
|
3083 } |
|
3084 |
|
3085 /** Verify the current alignment and change it if the current row |
|
3086 is empty. If the row is not empty and the item alignement is different |
|
3087 and the item requires a row break, then add a new row. */ |
|
3088 void CMIDForm::VerifyRowAlignmentL(TInt aIndex) |
|
3089 { |
|
3090 TInt leftRightMask = MMIDItem::ELeft | MMIDItem::ERight; |
|
3091 CMIDControlItem& ci = ControlItem(iItems[aIndex]); |
|
3092 |
|
3093 if (iCurrentRow->NumItems() == 0) |
|
3094 { |
|
3095 // this is the first item in the row |
|
3096 if (!LayoutDefault(ci)) |
|
3097 { |
|
3098 // we take the items alignment for the row |
|
3099 iCurrentAlignment = MMIDItem::TLayout(ci.Layout() & leftRightMask); |
|
3100 iCurrentRow->SetAlignment(iCurrentAlignment); |
|
3101 } |
|
3102 } |
|
3103 else if (!LayoutMatchesCurrentAlignment(ci, iCurrentAlignment)) |
|
3104 { |
|
3105 // the new layout doesn't match the current so go to the next row |
|
3106 CreateNewRowAndSetAsCurrentL(); |
|
3107 iCurrentAlignment = MMIDItem::TLayout(ci.Layout() & leftRightMask); |
|
3108 iCurrentRow->SetAlignment(iCurrentAlignment); |
|
3109 } |
|
3110 } |
|
3111 |
|
3112 /** |
|
3113 Inserts the specified number of new rows (aNumNewLines). If there is a control |
|
3114 item passed as a parameter it means the lines to be inserted are empty lines |
|
3115 preceeding the control and therefore should have their empty size set to the |
|
3116 size of the control. |
|
3117 |
|
3118 @param aControlItem The control item used to set the size of empty rows. |
|
3119 |
|
3120 @param aNumNewLines The number of rows to be added, if equal to zero this method does |
|
3121 nothing |
|
3122 */ |
|
3123 void CMIDForm::InsertNewlinesL(TInt aNumNewlines, CMIDControlItem* aControlItem) |
|
3124 { |
|
3125 for (TInt idx = 0; idx < aNumNewlines; idx++) |
|
3126 { |
|
3127 if (aControlItem && aControlItem->LabelControl() && iCurrentRow && iCurrentRow->NumItems() == 0) |
|
3128 { |
|
3129 iCurrentRow->SetEmptyRowSize(TSize(iInnerWidth,aControlItem->OneLineLabelHeight())); |
|
3130 } |
|
3131 |
|
3132 CreateNewRowAndSetAsCurrentL(); |
|
3133 } |
|
3134 } |
|
3135 |
|
3136 |
|
3137 /** |
|
3138 * Creates a new string item, using special type CMIDLabelContainerItem. |
|
3139 * This is a special string item which has no label and is added to wrap |
|
3140 * content of a previous string item across several rows. |
|
3141 * |
|
3142 * @see CMIDLabelContainerItem |
|
3143 */ |
|
3144 void CMIDForm::CreateAndAddLabelContainerItemL(CMIDStringItem& aStringItem, |
|
3145 CEikLabel& aLabel, TBool aIsStringItemContent) |
|
3146 { |
|
3147 // Label container items items have an horizontal margin only |
|
3148 // when at the beginning of the row |
|
3149 TBool hasHMargin = (iCurrentRow->NumItems() == 0); |
|
3150 |
|
3151 CMIDLabelContainerItem* usil = |
|
3152 CMIDLabelContainerItem::NewL(aStringItem, aLabel, hasHMargin); |
|
3153 |
|
3154 CleanupStack::PushL(usil); |
|
3155 usil->SetContainerWindowL(*this); |
|
3156 // sets flag for detecting if label container item is created |
|
3157 // from string item label or content |
|
3158 usil->SetIsStringItemContent(aIsStringItemContent); |
|
3159 |
|
3160 iCurrentRow->AppendL(usil); |
|
3161 CleanupStack::Pop(usil); |
|
3162 } |
|
3163 |
|
3164 /** |
|
3165 * Inserts a CMIDLabelContainerItem for each line in aTextControl. |
|
3166 * |
|
3167 * @see CreateAndAddLabelContainerItemL() |
|
3168 */ |
|
3169 void CMIDForm::InsertContainerItemsL(CMIDStringItem& aStringItem, |
|
3170 CMIDItemLabel& aTextControl, TBool aIsStringItemContent) |
|
3171 { |
|
3172 TInt numLines = aTextControl.NumLines(); |
|
3173 for (TInt j = 0; j < numLines; j++) |
|
3174 { |
|
3175 CEikLabel* label = aTextControl.LabelAtIdx(j); |
|
3176 |
|
3177 if (label) |
|
3178 { |
|
3179 CGraphicsContext::TTextAlign align = aTextControl.LabelAtIdx(j)->iAlignment.TextAlign(); |
|
3180 |
|
3181 // If aLabel aligment is incorrect relayout aLabel |
|
3182 if ((align != CGraphicsContext::ERight && |
|
3183 iInitialAlignment == MMIDItem::ERight) || |
|
3184 (align != CGraphicsContext::ELeft && |
|
3185 iInitialAlignment == MMIDItem::ELeft) || |
|
3186 (align != CGraphicsContext::ECenter && |
|
3187 iInitialAlignment == MMIDItem::ECenter)) |
|
3188 { |
|
3189 aTextControl.LayoutItemLabel(); |
|
3190 } |
|
3191 |
|
3192 // insert every line as a CMIDLabelContainerItem |
|
3193 CreateAndAddLabelContainerItemL( |
|
3194 aStringItem, *(label), aIsStringItemContent); |
|
3195 } |
|
3196 |
|
3197 if (j != (numLines-1)) |
|
3198 { // insert a row break except for the last line |
|
3199 CreateNewRowAndSetAsCurrentL(); |
|
3200 } |
|
3201 } |
|
3202 } |
|
3203 |
|
3204 /** |
|
3205 Adds an unconstrained string item to one or more rows. If the item |
|
3206 has a label always insert a line break (new row) before and if it |
|
3207 is followed by constrained item also after the label. Crop the label |
|
3208 to the full line width and insert is as a CMIDLabelContainerItem. |
|
3209 |
|
3210 If the item has no label we can start anywhere in the current row. |
|
3211 Split its content across the remaining width for the first line |
|
3212 and then across the full line width. Insert a CMIDLabelContainerItem |
|
3213 for each line and insert a row break after each CMIDLabelContainerItem |
|
3214 except the last one. |
|
3215 |
|
3216 Item with label can be inserted as default item when one of this |
|
3217 situation occurs: |
|
3218 - it is the last item in form |
|
3219 - following item is constrained |
|
3220 - following item is unconstrained but has a label |
|
3221 |
|
3222 Item without label can be inserted as default item when: |
|
3223 - it is the only item in form |
|
3224 - it is the first item in form and following item is |
|
3225 unconstrained but has a label (it starts in a new row) |
|
3226 |
|
3227 @see CMILabelContainerItem, InsertContainerItemsL(), |
|
3228 CreateNewRowAndSetAsCurrentL(), InsertNewlinesL() |
|
3229 */ |
|
3230 void CMIDForm::AddUnconstrainedStringItemL(TInt& aIndex) |
|
3231 { |
|
3232 CMIDStringItem* si = (CMIDStringItem*)iItems[aIndex]; |
|
3233 |
|
3234 TInt widthForText = Width(); |
|
3235 |
|
3236 // check if next item is unconstrained and has label |
|
3237 TBool nextUnconstrainedHasLabel(EFalse); |
|
3238 if (aIndex < iItems.Count()-1 && ItemIsUnconstrained(aIndex + 1)) |
|
3239 { |
|
3240 CMIDStringItem* nextItem = (CMIDStringItem*)iItems[aIndex+1]; |
|
3241 if (nextItem->LabelControl() && |
|
3242 (nextItem->LabelControl()->Text()->Length() > 0)) |
|
3243 { |
|
3244 nextUnconstrainedHasLabel = ETrue; |
|
3245 } |
|
3246 } |
|
3247 |
|
3248 if (si->LabelControl() && (si->LabelControl()->Text()->Length() > 0)) |
|
3249 {//item has a label - it should be placed in a new row |
|
3250 if (iCurrentRow->NumItems() > 0) |
|
3251 { |
|
3252 CreateNewRowAndSetAsCurrentL(); |
|
3253 } |
|
3254 |
|
3255 // If the item is last or next item is constrained or next item |
|
3256 // is unconstrained but has a label (it will be placed in a new row) |
|
3257 // this item is placed as default item. |
|
3258 if ((aIndex == iItems.Count()-1) || !ItemIsUnconstrained(aIndex + 1) |
|
3259 || nextUnconstrainedHasLabel) |
|
3260 { |
|
3261 AddDefaultItemL(aIndex); |
|
3262 return; |
|
3263 } |
|
3264 |
|
3265 // otherwise place the label in one row and then insert the text |
|
3266 si->LabelControl()->SetWidthL(widthForText); |
|
3267 // label of string item is inserted as label container item |
|
3268 // EFalse identifies that label container item is created from string item label |
|
3269 InsertContainerItemsL(*si, *(si->LabelControl()), EFalse); |
|
3270 // string items is divided to label container items due to concatenation of contents |
|
3271 // contained in adjacent string items |
|
3272 si->SetIsDivided(ETrue); |
|
3273 CreateNewRowAndSetAsCurrentL(); |
|
3274 } |
|
3275 else |
|
3276 { // item has no label |
|
3277 |
|
3278 // If the item is the only item in form or it is the first item in form |
|
3279 // and the next item is unconstrained with label (it starts at a new row) |
|
3280 // this item is placed as default item |
|
3281 if ((iItems.Count() == 1) || (aIndex == 0 && nextUnconstrainedHasLabel)) |
|
3282 { |
|
3283 AddDefaultItemL(aIndex); |
|
3284 return; |
|
3285 } |
|
3286 } |
|
3287 |
|
3288 // this is either the remaining width on the current row or the full |
|
3289 // line width if we are on a new row |
|
3290 TInt remainingLineWidth = widthForText - iCurrentRow->CurrentWidth(); |
|
3291 |
|
3292 if ((remainingLineWidth < si->StringContentControl()->FirstWordWidth()) |
|
3293 && (iCurrentRow->NumItems() != 0)) |
|
3294 { // if not even one word fits then go to the next line unless |
|
3295 // we are already on a new line |
|
3296 CreateNewRowAndSetAsCurrentL(); |
|
3297 remainingLineWidth = widthForText; |
|
3298 } |
|
3299 |
|
3300 // wrap the content to the remaining width for the first line and to |
|
3301 // the full width for any other line |
|
3302 si->StringContentControl()->SetVariableWidthL(remainingLineWidth, widthForText); |
|
3303 // content of string item is inserted as label container item |
|
3304 // ETrue identifies that label container item is created from string item content |
|
3305 InsertContainerItemsL(*si, *(si->StringContentControl()), ETrue); |
|
3306 } |
|
3307 |
|
3308 /** |
|
3309 * Adds a standard case item to the current row. It verifies if a new |
|
3310 * row should be added and adds one if so. Then it appends the item |
|
3311 * to the current row. |
|
3312 * |
|
3313 * @see CMIDControlItem, OkToMoveToNextRow() |
|
3314 */ |
|
3315 void CMIDForm::AddDefaultItemL(TInt& aIndex) |
|
3316 { |
|
3317 CMIDControlItem& ci = ControlItem(iItems[aIndex]); |
|
3318 |
|
3319 TSize itemSize = LayoutShrink(ci) ? ci.MinimumSize() : ci.PreferredSize(); |
|
3320 ci.SetSizeQuiet(itemSize); |
|
3321 |
|
3322 if (OkToMoveToNextRow(itemSize)) |
|
3323 { |
|
3324 CreateNewRowAndSetAsCurrentL(); |
|
3325 } |
|
3326 |
|
3327 iCurrentRow->AppendL(&ci); |
|
3328 } |
|
3329 |
|
3330 /** |
|
3331 Return true if the given size does not fit into the current |
|
3332 row and the row is not empty and the size is not bigger than |
|
3333 an empty row. |
|
3334 */ |
|
3335 TBool CMIDForm::OkToMoveToNextRow(const TSize& aItemSize) const |
|
3336 { |
|
3337 return ((iCurrentRow->CurrentWidth() + aItemSize.iWidth) > iInnerWidth) && |
|
3338 !((aItemSize.iWidth > iInnerWidth) && (iCurrentRow->NumItems() == 0)); |
|
3339 } |
|
3340 |
|
3341 /** |
|
3342 Assigns the items to the rows, which are re-created. |
|
3343 */ |
|
3344 void CMIDForm::AssignItemsToRowsL() |
|
3345 { |
|
3346 DeleteRows(); |
|
3347 |
|
3348 //reset current alignment |
|
3349 iCurrentAlignment = InitialAlignment(); |
|
3350 |
|
3351 //Create a row, the form must have at least an empty row |
|
3352 CreateNewRowAndSetAsCurrentL(); |
|
3353 |
|
3354 for (TInt i = 0; i < iItems.Count(); i++) |
|
3355 { |
|
3356 if (SkipNullItem(i)) |
|
3357 { //zero size items are ignored |
|
3358 continue; |
|
3359 } |
|
3360 |
|
3361 // if the current alignment changes we may need to change row |
|
3362 VerifyRowAlignmentL(i); |
|
3363 |
|
3364 CMIDControlItem& ci = ControlItem(iItems[i]); |
|
3365 |
|
3366 // add any extra rows before the current item if needed |
|
3367 InsertNewlinesL(NumNewLinesBefore(ci), &ci); |
|
3368 |
|
3369 if (ItemIsUnconstrained(i)) |
|
3370 { // unconstrained string items are processed specially |
|
3371 AddUnconstrainedStringItemL(i); |
|
3372 } |
|
3373 else |
|
3374 { // any other item is processed in here |
|
3375 AddDefaultItemL(i); |
|
3376 } |
|
3377 |
|
3378 // add any additional row breaks if needed |
|
3379 InsertNewlinesL(NumNewLinesAfter(ci), &ci); |
|
3380 } |
|
3381 } |
|
3382 |
|
3383 /** Return true if the item is an unconstrained string item, false otherwise */ |
|
3384 TBool CMIDForm::ItemIsUnconstrained(TInt aIndex) const |
|
3385 { |
|
3386 if (aIndex >= 0 && aIndex < iItems.Count()) |
|
3387 { |
|
3388 CMIDControlItem& ci = ControlItem(iItems[aIndex]); |
|
3389 return (IsStringItem(ci) && ((CMIDStringItem*)&ci)->IsUnconstrainedStringItem()); |
|
3390 } |
|
3391 |
|
3392 return EFalse; |
|
3393 } |
|
3394 |
|
3395 TBool CMIDForm::LayoutMatchesCurrentAlignment(CMIDControlItem& aControlItem, |
|
3396 MMIDItem::TLayout aCurrentAlignment) |
|
3397 { |
|
3398 TInt leftRightMask = MMIDItem::ELeft | MMIDItem::ERight; |
|
3399 |
|
3400 return ((aControlItem.Layout() & leftRightMask) == MMIDItem::EDefault) || |
|
3401 ((aControlItem.Layout() & leftRightMask) == aCurrentAlignment); |
|
3402 } |
|
3403 |
|
3404 TBool CMIDForm::LayoutDefault(CMIDControlItem& aControlItem) |
|
3405 { |
|
3406 TInt leftRightMask = MMIDItem::ELeft | MMIDItem::ERight; |
|
3407 |
|
3408 return ((aControlItem.Layout() & leftRightMask) == MMIDItem::EDefault); |
|
3409 } |
|
3410 |
|
3411 TBool CMIDForm::LayoutNewLineBefore(CMIDControlItem& aControlItem) |
|
3412 { |
|
3413 return (aControlItem.Layout() & MMIDItem::ENewLineBefore); |
|
3414 } |
|
3415 |
|
3416 TBool CMIDForm::LayoutNewLineAfter(CMIDControlItem& aControlItem) |
|
3417 { |
|
3418 return (aControlItem.Layout() & MMIDItem::ENewLineAfter); |
|
3419 } |
|
3420 |
|
3421 /** Return true if the LAYOUT_SHRINK directive has been set. For |
|
3422 string items which have one or both dimensions of the preferred |
|
3423 size set the layout shrink directive is ignored. */ |
|
3424 TBool CMIDForm::LayoutShrink(CMIDControlItem& aControlItem) |
|
3425 { |
|
3426 if (IsStringItem(aControlItem)) |
|
3427 { |
|
3428 CMIDStringItem* si = (CMIDStringItem*)(&aControlItem); |
|
3429 |
|
3430 if (si->WidthOrHeightSpecified()) |
|
3431 { |
|
3432 return EFalse; |
|
3433 } |
|
3434 } |
|
3435 |
|
3436 return (aControlItem.Layout() & MMIDItem::EShrink); |
|
3437 } |
|
3438 |
|
3439 /** Return true if the LAYOUT_EXPAND directive has been set. For |
|
3440 string items which have one or both dimensions of the preferred |
|
3441 size set the layout expand directive is ignored. */ |
|
3442 TBool CMIDForm::LayoutExpand(CMIDControlItem& aControlItem) |
|
3443 { |
|
3444 if (IsStringItem(aControlItem)) |
|
3445 { |
|
3446 CMIDStringItem* si = (CMIDStringItem*)(&aControlItem); |
|
3447 |
|
3448 if (si->WidthOrHeightSpecified()) |
|
3449 { |
|
3450 return EFalse; |
|
3451 } |
|
3452 } |
|
3453 |
|
3454 return (aControlItem.Layout() & MMIDItem::EExpand); |
|
3455 } |
|
3456 |
|
3457 /** Return true if the LAYOUT_VSHIRNK directive has been set. For |
|
3458 string items which have one or both dimensions of the preferred |
|
3459 size set the layout vertical shrink directive is ignored. */ |
|
3460 TBool CMIDForm::LayoutVerticalShrink(CMIDControlItem& aControlItem) |
|
3461 { |
|
3462 if (IsStringItem(aControlItem)) |
|
3463 { |
|
3464 CMIDStringItem* si = (CMIDStringItem*)(&aControlItem); |
|
3465 |
|
3466 if (si->WidthOrHeightSpecified()) |
|
3467 { |
|
3468 return EFalse; |
|
3469 } |
|
3470 } |
|
3471 |
|
3472 return (aControlItem.Layout() & MMIDItem::EVerticalShrink); |
|
3473 } |
|
3474 |
|
3475 /** Return true if the LAYOUT_VEXPAND directive has been set. For |
|
3476 string items which have one or both dimensions of the preferred |
|
3477 size set the layout vertical expand directive is ignored. */ |
|
3478 TBool CMIDForm::LayoutVerticalExpand(CMIDControlItem& aControlItem) |
|
3479 { |
|
3480 if (IsStringItem(aControlItem)) |
|
3481 { |
|
3482 CMIDStringItem* si = (CMIDStringItem*)(&aControlItem); |
|
3483 |
|
3484 if (si->WidthOrHeightSpecified()) |
|
3485 { |
|
3486 return EFalse; |
|
3487 } |
|
3488 } |
|
3489 |
|
3490 return (aControlItem.Layout() & MMIDItem::EVerticalExpand); |
|
3491 } |
|
3492 |
|
3493 TBool CMIDForm::LayoutVerticalCenter(CMIDControlItem& aControlItem) |
|
3494 { |
|
3495 TInt layout = aControlItem.Layout(); |
|
3496 layout &= MMIDItem::EVerticalCenter; |
|
3497 return (layout == MMIDItem::EVerticalCenter); |
|
3498 } |
|
3499 |
|
3500 TBool CMIDForm::LayoutBottom(CMIDControlItem& aControlItem) |
|
3501 { |
|
3502 TInt layout = aControlItem.Layout(); |
|
3503 layout &= MMIDItem::EVerticalCenter; |
|
3504 return (layout == MMIDItem::EBottom) || (layout == 0); |
|
3505 } |
|
3506 |
|
3507 TBool CMIDForm::IsStringItem(CMIDControlItem& aControlItem) |
|
3508 { |
|
3509 if (!aControlItem.iMMidItem) |
|
3510 { |
|
3511 return EFalse; |
|
3512 } |
|
3513 return (aControlItem.iMMidItem->Type() == MMIDComponent::EStringItem); |
|
3514 } |
|
3515 |
|
3516 TBool CMIDForm::IsStringItemHyperlink(CMIDControlItem& aControlItem) |
|
3517 { |
|
3518 if (!aControlItem.iMMidItem) |
|
3519 { |
|
3520 return EFalse; |
|
3521 } |
|
3522 if (aControlItem.iMMidItem->Type() == MMIDComponent::EStringItem) |
|
3523 { |
|
3524 return (((CMIDStringItem&) aControlItem).Appearance() == MMIDItem::EHyperLink); |
|
3525 } |
|
3526 else |
|
3527 { |
|
3528 return EFalse; |
|
3529 } |
|
3530 } |
|
3531 |
|
3532 TBool CMIDForm::IsStringItemButton(CMIDControlItem& aControlItem) |
|
3533 { |
|
3534 if (!aControlItem.iMMidItem) |
|
3535 { |
|
3536 return EFalse; |
|
3537 } |
|
3538 if (aControlItem.iMMidItem->Type() == MMIDComponent::EStringItem) |
|
3539 { |
|
3540 return (((CMIDStringItem&) aControlItem).Appearance() == MMIDItem::EButton); |
|
3541 } |
|
3542 else |
|
3543 { |
|
3544 return EFalse; |
|
3545 } |
|
3546 } |
|
3547 |
|
3548 TBool CMIDForm::IsCustomItem(CMIDControlItem& aControlItem) |
|
3549 { |
|
3550 if (!aControlItem.iMMidItem) |
|
3551 { |
|
3552 return EFalse; |
|
3553 } |
|
3554 return (aControlItem.iMMidItem->Type() == MMIDComponent::ECustomItem); |
|
3555 } |
|
3556 |
|
3557 TBool CMIDForm::IsGaugeItem(CMIDControlItem& aControlItem) |
|
3558 { |
|
3559 if (!aControlItem.iMMidItem) |
|
3560 { |
|
3561 return EFalse; |
|
3562 } |
|
3563 return (aControlItem.iMMidItem->Type() == MMIDComponent::EGauge); |
|
3564 } |
|
3565 |
|
3566 TBool CMIDForm::IsTextFieldItem(CMIDControlItem& aControlItem) |
|
3567 { |
|
3568 if (!aControlItem.iMMidItem) |
|
3569 { |
|
3570 return EFalse; |
|
3571 } |
|
3572 return (aControlItem.iMMidItem->Type() == MMIDComponent::ETextField); |
|
3573 } |
|
3574 |
|
3575 TBool CMIDForm::IsChoiceGroup(CMIDControlItem& aControlItem) |
|
3576 { |
|
3577 if (!aControlItem.iMMidItem) |
|
3578 { |
|
3579 return EFalse; |
|
3580 } |
|
3581 return (aControlItem.iMMidItem->Type() == MMIDComponent::EChoiceGroup); |
|
3582 } |
|
3583 |
|
3584 TBool CMIDForm::IsPopupChoiceGroup(CMIDControlItem& aControlItem) |
|
3585 { |
|
3586 if (aControlItem.iMMidItem |
|
3587 && aControlItem.iMMidItem->Type() == MMIDComponent::EChoiceGroup) |
|
3588 { |
|
3589 CMIDChoiceGroupItem& cgItem = static_cast<CMIDChoiceGroupItem&>(aControlItem); |
|
3590 CMIDChoiceGroupControl* cgControl = |
|
3591 static_cast<CMIDChoiceGroupControl*>(cgItem.ComponentControl(1)); |
|
3592 if (cgControl && cgControl->ChoiceType() == MMIDChoiceGroup::EPopup) |
|
3593 { |
|
3594 return ETrue; |
|
3595 } |
|
3596 } |
|
3597 return EFalse; |
|
3598 } |
|
3599 |
|
3600 TBool CMIDForm::IsDateField(CMIDControlItem& aControlItem) |
|
3601 { |
|
3602 if (!aControlItem.iMMidItem) |
|
3603 { |
|
3604 return EFalse; |
|
3605 } |
|
3606 return (aControlItem.iMMidItem->Type() == MMIDComponent::EDateField); |
|
3607 } |
|
3608 |
|
3609 TBool CMIDForm::IsLabelContainerItem(CMIDControlItem& aControlItem) |
|
3610 { |
|
3611 return (aControlItem.Type() == KLabelContainerItem); |
|
3612 } |
|
3613 |
|
3614 TBool CMIDForm::IsSpacerUsedForFormatting(CMIDControlItem& aControlItem) |
|
3615 { |
|
3616 if (!aControlItem.iMMidItem) |
|
3617 { |
|
3618 return EFalse; |
|
3619 } |
|
3620 if (aControlItem.iMMidItem->Type() == MMIDComponent::ESpacer) |
|
3621 { |
|
3622 CMIDSpacer* spacer = static_cast<CMIDSpacer*>(&aControlItem); |
|
3623 return spacer->UsedForStringFormatting(); |
|
3624 } |
|
3625 return EFalse; |
|
3626 } |
|
3627 |
|
3628 TBool CMIDForm::IsImageItem(CMIDControlItem& aControlItem) |
|
3629 { |
|
3630 if (!aControlItem.iMMidItem) |
|
3631 { |
|
3632 return EFalse; |
|
3633 } |
|
3634 return (aControlItem.iMMidItem->Type() == MMIDItem::EImageItem); |
|
3635 } |
|
3636 |
|
3637 #ifdef RD_JAVA_S60_RELEASE_9_2 |
|
3638 void CMIDForm::PostPendingUpEventL() |
|
3639 { |
|
3640 MMIDItem* curItem = CurrentItem(); |
|
3641 if (curItem) |
|
3642 { |
|
3643 CMIDControlItem& item = ControlItem(curItem); |
|
3644 |
|
3645 if (IsChoiceGroup(item)) |
|
3646 { |
|
3647 CMIDChoiceGroupItem* cgItem = static_cast<CMIDChoiceGroupItem*>(&item); |
|
3648 cgItem->PostPendingUpEventL(); |
|
3649 } |
|
3650 } |
|
3651 } |
|
3652 |
|
3653 TInt CMIDForm::FormRowIndex(CMIDFormRow* aRow) |
|
3654 { |
|
3655 return iRows.Find(aRow); |
|
3656 } |
|
3657 |
|
3658 CMIDFormRow* CMIDForm::FormRow(TInt aIndex) |
|
3659 { |
|
3660 if (iRows.Count() > aIndex) |
|
3661 { |
|
3662 return iRows[aIndex]; |
|
3663 } |
|
3664 return NULL; |
|
3665 } |
|
3666 #endif // RD_JAVA_S60_RELEASE_9_2 |
|
3667 |
|
3668 // returns: The number of new lines before an item. |
|
3669 // This only takes into account new lines that come from |
|
3670 // preceeding a string item with new line characters. |
|
3671 TInt CMIDForm::NumNewLinesBefore(CMIDControlItem& aControlItem) |
|
3672 { |
|
3673 if (IsStringItem(aControlItem)) |
|
3674 { |
|
3675 CMIDStringItem* si = (CMIDStringItem*)(&aControlItem); |
|
3676 TInt nLinesBefore = si->NumNewlinesBefore(); |
|
3677 if (nLinesBefore > 0) |
|
3678 { |
|
3679 return nLinesBefore; |
|
3680 } |
|
3681 } |
|
3682 if (iCurrentRow && iCurrentRow->NumItems() == 0) |
|
3683 { |
|
3684 return 0; |
|
3685 } |
|
3686 return LayoutNewLineBefore(aControlItem) ? 1 : 0; |
|
3687 } |
|
3688 |
|
3689 // returns: The number of new lines that should appear after an item |
|
3690 // This takes into account the new lines that can occour from |
|
3691 // newlines at the end of a string item, and if there are none |
|
3692 // of these, then it returns 1 if the Layout NewLineAfter |
|
3693 // directive has been used and 0 otherwise. |
|
3694 TInt CMIDForm::NumNewLinesAfter(CMIDControlItem& aControlItem) |
|
3695 { |
|
3696 if (IsStringItem(aControlItem)) |
|
3697 { |
|
3698 CMIDStringItem* si = (CMIDStringItem*)(&aControlItem); |
|
3699 if (si->NumNewlinesAfter() > 0) |
|
3700 { |
|
3701 TInt nLinesAfter = si->NumNewlinesAfter(); |
|
3702 if (nLinesAfter > 0) |
|
3703 { |
|
3704 return nLinesAfter; |
|
3705 } |
|
3706 } |
|
3707 } |
|
3708 return LayoutNewLineAfter(aControlItem) ? 1 : 0; |
|
3709 } |
|
3710 |
|
3711 // effects: Sizes the items within the rows based on their layout characteristics |
|
3712 // modifies: CMIDFormRow |
|
3713 void CMIDForm::SizeItemsInFormRowsL() |
|
3714 { |
|
3715 TInt rowCount = iRows.Count(); |
|
3716 for (TInt i=0; i < rowCount; i++) |
|
3717 { |
|
3718 iRows[i]->SizeItemsL(); |
|
3719 } |
|
3720 } |
|
3721 |
|
3722 // effects: Deletes all rows in the Form. It doesn't affect the items that have |
|
3723 // been added to the form. |
|
3724 // modifies: CMIDForm, CMIDFormRow |
|
3725 void CMIDForm::DeleteRows() |
|
3726 { |
|
3727 // By deleting rows we are losing pointers to original items. |
|
3728 // To avoid any problems with using iPointedControl, which |
|
3729 // could points to invalid object (e.g. used in |
|
3730 // CMIDForm::HandleHighlightTimer or |
|
3731 // in CMIDForm::HandlePhysicsPointerEventL), |
|
3732 // iPointedControl must be set to NULL. |
|
3733 iPointedControl = NULL; |
|
3734 |
|
3735 for (TInt i=0; i < iRows.Count(); i++) |
|
3736 { |
|
3737 delete iRows[i]; |
|
3738 } |
|
3739 |
|
3740 iRows.Reset(); |
|
3741 iCurrentRow = NULL; |
|
3742 } |
|
3743 |
|
3744 TInt CMIDForm::HeightOfAllItems() |
|
3745 { |
|
3746 return iTotalFormHeight; |
|
3747 } |
|
3748 |
|
3749 void CMIDForm::UpdateHeightOfAllItems() |
|
3750 { |
|
3751 TInt yTopMargin = iFormRect.Rect().iTl.iY - iMidpFormRect.Rect().iTl.iY; |
|
3752 TInt yBottomMargin = iMidpFormRect.Rect().iBr.iY - iFormRect.Rect().iBr.iY; |
|
3753 |
|
3754 iTotalFormHeight = yTopMargin; |
|
3755 |
|
3756 TInt rowCount = iRows.Count(); |
|
3757 for (TInt i=0; i < rowCount; i++) |
|
3758 { |
|
3759 iTotalFormHeight += iRows[i]->Size().iHeight; |
|
3760 } |
|
3761 // Form bottom margin is added |
|
3762 iTotalFormHeight += yBottomMargin; |
|
3763 } |
|
3764 |
|
3765 /* HandleResourceChange |
|
3766 * |
|
3767 * This method is called after a resource change event, for example after |
|
3768 * screen dynamic resolution change. |
|
3769 * |
|
3770 * In the case of a screen dynamic resolution change we notify all items and |
|
3771 * repeat the entire form layout. |
|
3772 * |
|
3773 * We calculate the % of form that has been scrolled so far and we |
|
3774 * modify iScroll so that we have scrolled the same % of form after resolution |
|
3775 * change. Note that the max extent of iScroll is HeightOfAllItems() - Height() |
|
3776 * and not simply HeightOfAllItems() as one may think, see |
|
3777 * SetRowExtentsWithRespectToScrolledLocation(). Also note that applying a % |
|
3778 * scrolling does not necessarily mean the same items will be on screen after a |
|
3779 * resolution change. |
|
3780 * Especially when changing from portrait to landscape or vice-versa the |
|
3781 * number of items on a row vary greatly and as a consequence the number of |
|
3782 * rows may vary. Therefore, if there is a focused item on screen before |
|
3783 * resolution change (iFocused not KErrNotFound) we make sure this item is |
|
3784 * visible and focused after res change by scrolling to it, see SetFocusedItem() |
|
3785 * and ScrollToFocused(). |
|
3786 */ |
|
3787 void CMIDForm::HandleResourceChange(TInt aType) |
|
3788 { |
|
3789 TInt maxScrollExtentOld = HeightOfAllItems() - Height(); //max extent of iScroll |
|
3790 CCoeControl::HandleResourceChange(aType); |
|
3791 |
|
3792 if (aType == KEikDynamicLayoutVariantSwitch) |
|
3793 { // dynamic resolution change |
|
3794 TInt focusedItem = iFocused; |
|
3795 |
|
3796 UpdateMemberVariables(); |
|
3797 UpdateHeightOfAllItems(); |
|
3798 |
|
3799 TInt itemCount = iItems.Count(); |
|
3800 for (TInt i=0; i < itemCount; i++) |
|
3801 { |
|
3802 CMIDControlItem& controlItem = ControlItem(i); |
|
3803 controlItem.ResolutionChange(aType); |
|
3804 |
|
3805 if (controlItem.LabelControl()) |
|
3806 { |
|
3807 controlItem.LabelControl()->ResolutionChange(); |
|
3808 } |
|
3809 } |
|
3810 |
|
3811 TInt maxScrollExtentNew = HeightOfAllItems() - Height(); //max extent of iScroll |
|
3812 |
|
3813 TRAPD(err,LayoutFormL()); |
|
3814 |
|
3815 if (err == KErrNone) |
|
3816 { |
|
3817 if ((maxScrollExtentNew <= 0) && (maxScrollExtentOld > 0)) |
|
3818 { |
|
3819 // scroll on top |
|
3820 RawScroll(0); |
|
3821 if (focusedItem != KErrNotFound) |
|
3822 { |
|
3823 // restore the form item focus |
|
3824 CMIDControlItem& control = ControlItem(focusedItem); |
|
3825 control.RestoreInnerFocus(); |
|
3826 } |
|
3827 } |
|
3828 else |
|
3829 { |
|
3830 if ((maxScrollExtentNew > 0) || (maxScrollExtentOld > 0)) |
|
3831 { |
|
3832 // if there is something focused |
|
3833 if (focusedItem != KErrNotFound) |
|
3834 { |
|
3835 // restore the form item focus |
|
3836 CMIDControlItem& control = ControlItem(focusedItem); |
|
3837 ScrollToFocused(); |
|
3838 control.RestoreInnerFocus(); |
|
3839 } |
|
3840 // if scroll out of maxScrollExtent |
|
3841 if (maxScrollExtentNew+iScroll < 0) |
|
3842 { |
|
3843 // scroll to bottom |
|
3844 RawScroll(-maxScrollExtentNew); |
|
3845 } |
|
3846 |
|
3847 } |
|
3848 } |
|
3849 } |
|
3850 |
|
3851 SetHighlightBackgroundRects(); |
|
3852 HandleItemVisibilityChange(); |
|
3853 UpdateScrollBar(); |
|
3854 DrawDeferred(); |
|
3855 } |
|
3856 else if (aType == KEikColorResourceChange || aType == KAknsMessageSkinChange || |
|
3857 aType == KUidValueCoeColorSchemeChangeEvent) |
|
3858 {//skin or color scheme change |
|
3859 TInt itemCount = iItems.Count(); |
|
3860 for (TInt i=0; i < itemCount; i++) |
|
3861 { |
|
3862 CMIDControlItem& controlItem = ControlItem(i); |
|
3863 controlItem.ColorChange(aType); |
|
3864 } |
|
3865 |
|
3866 // send this event also to form scrollbar |
|
3867 CEikScrollBar* sb = iSBFrame->GetScrollBarHandle(CEikScrollBar::EVertical); |
|
3868 if (sb) |
|
3869 { |
|
3870 sb->HandleResourceChange(aType); |
|
3871 } |
|
3872 } |
|
3873 else if ((aType == KEikMessageUnfadeWindows) || |
|
3874 (aType == KEikMessageFadeAllWindows)) |
|
3875 { |
|
3876 iLastFadeMessage = aType; |
|
3877 } |
|
3878 else if ((aType == KEikMessageWindowsFadeChange) && |
|
3879 ((iLastFadeMessage == KEikMessageUnfadeWindows) || |
|
3880 (iLastFadeMessage == KEikMessageFadeAllWindows))) |
|
3881 { |
|
3882 TInt itemCount = iItems.Count(); |
|
3883 for (TInt i=0; i < itemCount; i++) |
|
3884 { |
|
3885 CMIDControlItem& controlItem = ControlItem(i); |
|
3886 controlItem.HandleWindowFade(iLastFadeMessage == KEikMessageFadeAllWindows); |
|
3887 } |
|
3888 iLastFadeMessage = 0; |
|
3889 } |
|
3890 |
|
3891 UpdatePhysics(); |
|
3892 |
|
3893 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
3894 UpdateTactileFeedbackDensity(); |
|
3895 #endif // RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
3896 } |
|
3897 |
|
3898 TBool CMIDForm::TryDetectLongTapL(const TPointerEvent &aPointerEvent) |
|
3899 { |
|
3900 return iDisplayable.TryDetectLongTapL(aPointerEvent); |
|
3901 } |
|
3902 |
|
3903 #ifdef RD_SCALABLE_UI_V2 |
|
3904 void CMIDForm::HandleScrollEventL(CEikScrollBar* aScrollBar, TEikScrollEvent aEventType) |
|
3905 { |
|
3906 if (AknLayoutUtils::PenEnabled()) |
|
3907 { |
|
3908 |
|
3909 if (LayoutPending()) |
|
3910 { |
|
3911 LayoutFormL(); |
|
3912 } |
|
3913 |
|
3914 TInt pixelIndex; |
|
3915 |
|
3916 switch (aEventType) |
|
3917 { |
|
3918 case EEikScrollUp: |
|
3919 { |
|
3920 pixelIndex = iScroll + (Height() / KScrollAmountDivider); |
|
3921 break; |
|
3922 } |
|
3923 |
|
3924 case EEikScrollDown: |
|
3925 { |
|
3926 pixelIndex = iScroll - (Height() / KScrollAmountDivider); |
|
3927 break; |
|
3928 } |
|
3929 |
|
3930 case EEikScrollPageUp: |
|
3931 { |
|
3932 pixelIndex = iScroll + Height(); |
|
3933 break; |
|
3934 } |
|
3935 |
|
3936 case EEikScrollPageDown: |
|
3937 { |
|
3938 pixelIndex = iScroll - Height(); |
|
3939 break; |
|
3940 } |
|
3941 |
|
3942 default://thumb drag |
|
3943 { |
|
3944 //scroll form if thumb position has moved more than 1/10 of the screen height either up or down |
|
3945 //or thumb position is at top or at bottom of the scrollbar. |
|
3946 if (-aScrollBar->ThumbPosition() < (iScroll - (Height() / KScrollAmountDividerForThumbDrag)) |
|
3947 || -aScrollBar->ThumbPosition() > (iScroll + (Height() / KScrollAmountDividerForThumbDrag)) |
|
3948 || aScrollBar->ThumbPosition() == 0 |
|
3949 || aScrollBar->ThumbPosition() == aScrollBar->Model()->MaxThumbPos()) |
|
3950 { |
|
3951 aScrollBar->DrawNow(); |
|
3952 pixelIndex = - aScrollBar->ThumbPosition(); |
|
3953 } |
|
3954 else |
|
3955 { |
|
3956 return; |
|
3957 } |
|
3958 break; |
|
3959 } |
|
3960 } |
|
3961 RawScroll(pixelIndex); |
|
3962 RawScrollFinalize(ETrue); |
|
3963 UpdatePhysics(); |
|
3964 } |
|
3965 } |
|
3966 |
|
3967 |
|
3968 TBool CMIDForm::StringItemContainsPoint(CMIDStringItem* aStringItem, const TPoint& aPoint) const |
|
3969 { |
|
3970 CMIDControlItem* ci = ControlItemAtPoint(aPoint); |
|
3971 |
|
3972 if (ci) |
|
3973 { |
|
3974 if (IsLabelContainerItem(*ci)) |
|
3975 { |
|
3976 CMIDLabelContainerItem *lci = static_cast<CMIDLabelContainerItem*>(ci); |
|
3977 CMIDStringItem& si = lci->StringItem(); |
|
3978 if (&si == aStringItem) |
|
3979 { // LabelContainer item is (part of) StringItem |
|
3980 if (si.IsDivided()) |
|
3981 { // StringItem was divided due to concatenation of contents |
|
3982 if (lci->IsStringItemContent()) |
|
3983 { // return ETrue if is pointed to StringItem content |
|
3984 return ETrue; |
|
3985 } |
|
3986 else |
|
3987 { // return EFasle if is pointed to StringItem label |
|
3988 return EFalse; |
|
3989 } |
|
3990 } |
|
3991 else |
|
3992 { // StringItem was not divided, pointed directly to unconstrained StringItem |
|
3993 return ETrue; |
|
3994 } |
|
3995 } |
|
3996 } |
|
3997 else |
|
3998 { |
|
3999 return (ci == aStringItem && aStringItem->TappingActionRect().Contains(aPoint)); |
|
4000 } |
|
4001 } |
|
4002 |
|
4003 return EFalse; |
|
4004 } |
|
4005 |
|
4006 TBool CMIDForm::IsFocusChangingWithPen() const |
|
4007 { |
|
4008 return iFocusChangingWithPen; |
|
4009 } |
|
4010 |
|
4011 #endif //RD_SCALABLE_UI_V2 |
|
4012 |
|
4013 |
|
4014 void CMIDForm::HandleForegroundL(TBool aForeground) |
|
4015 { |
|
4016 // send HandleForegroundL notification to gauge items |
|
4017 TInt itemsCount = iItems.Count(); |
|
4018 for (TInt i=0; i < itemsCount; i++) |
|
4019 { |
|
4020 if (iItems[i]->Type() == MMIDComponent::EGauge) |
|
4021 { |
|
4022 CMIDGaugeItem* gauge = static_cast<CMIDGaugeItem*>(iItems[i]); |
|
4023 ASSERT(gauge); |
|
4024 gauge->HandleForegroundL(aForeground); |
|
4025 } |
|
4026 } |
|
4027 } |
|
4028 |
|
4029 CMIDPopupNoteController* CMIDForm::GetPopupNoteController() const |
|
4030 { |
|
4031 return iPopupController; |
|
4032 } |
|
4033 |
|
4034 TInt CMIDForm::GetMidpNaviPos() |
|
4035 { |
|
4036 TAknLayoutRect mainMidpPane; |
|
4037 |
|
4038 // get main pane size from Avkon (size in pixels) |
|
4039 #ifdef RD_JAVA_S60_RELEASE_9_2 |
|
4040 TRect mainPane; |
|
4041 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, mainPane); |
|
4042 mainMidpPane.LayoutRect(mainPane, |
|
4043 AknLayoutScalable_Avkon::main_midp_pane().LayoutLine()); |
|
4044 #else |
|
4045 mainMidpPane.LayoutRect(iEikonEnv->ScreenDevice()->SizeInPixels(), |
|
4046 AknLayoutScalable_Avkon::main_midp_pane().LayoutLine()); |
|
4047 #endif // RD_JAVA_S60_RELEASE_9_2 |
|
4048 |
|
4049 // getting form size depends on screen orientation |
|
4050 TInt variety = Layout_Meta_Data::IsLandscapeOrientation() ? 1 : 0; |
|
4051 iMidpFormRect.LayoutRect(mainMidpPane.Rect(), |
|
4052 AknLayoutScalable_Avkon::midp_form_pane(variety).LayoutLine()); |
|
4053 |
|
4054 // different between screen size and form size |
|
4055 TInt xFormDiff = mainMidpPane.Rect().iBr.iX - iMidpFormRect.Rect().iBr.iX; |
|
4056 // width of navi bar position only for ( iAlignment == MMIDItem::ERight ) |
|
4057 TInt xNaviPos = iMidpFormRect.Rect().iTl.iX - xFormDiff; |
|
4058 |
|
4059 return xNaviPos; |
|
4060 } |
|
4061 |
|
4062 void CMIDForm::UpdatePhysics() |
|
4063 { |
|
4064 if (iPhysics) |
|
4065 { |
|
4066 TSize worldSize(Width(), HeightOfAllItems()); |
|
4067 TSize viewSize(Width(), Height()); |
|
4068 TPoint viewCenter(Width() / 2, -iScroll + Height() / 2); |
|
4069 TRAP_IGNORE(iPhysics->InitPhysicsL(worldSize, viewSize, viewCenter)); |
|
4070 } |
|
4071 } |
|
4072 |
|
4073 TInt CMIDForm::HighlightTimerCallback(TAny* aPtr) |
|
4074 { |
|
4075 CMIDForm* me = static_cast<CMIDForm*>(aPtr); |
|
4076 me->HandleHighlightTimer(); |
|
4077 return 0; |
|
4078 } |
|
4079 |
|
4080 void CMIDForm::HandleHighlightTimer() |
|
4081 { |
|
4082 iHighlightTimer->Cancel(); |
|
4083 |
|
4084 if (iPointedControl && iPointedControl->IsSelectable()) |
|
4085 { |
|
4086 // If tactile feedback has not been given already |
|
4087 // give basic tactile feedback when focus changes. |
|
4088 // Don't give tactile feedback for button because it is handled |
|
4089 // by button implementation. |
|
4090 #ifdef RD_TACTILE_FEEDBACK |
|
4091 if (!iFeedbackExecutedInPointerDown) |
|
4092 { |
|
4093 DoFeedbackOnFocusChange(*iPointedControl); |
|
4094 iFeedbackExecutedInPointerDown = ETrue; |
|
4095 } |
|
4096 #endif // RD_TACTILE_FEEDBACK |
|
4097 |
|
4098 TInt itemIndex = ItemIndex(*iPointedControl); |
|
4099 |
|
4100 if (itemIndex != iFocused) |
|
4101 { |
|
4102 SetFocusedItem(itemIndex, ENone, EFalse); |
|
4103 DrawDeferred(); |
|
4104 } |
|
4105 |
|
4106 if (!PhysicsScrolling() && !iUpEventSent) |
|
4107 { |
|
4108 TRAP_IGNORE(ForwardPointerEventToItemL(iLastPointerDownEvent)); |
|
4109 } |
|
4110 } |
|
4111 } |
|
4112 |
|
4113 void CMIDForm::SetHighlightBackgroundRects() |
|
4114 { |
|
4115 if (iFocused == KErrNotFound) |
|
4116 { |
|
4117 return; |
|
4118 } |
|
4119 |
|
4120 CMIDControlItem& ci = ControlItem(iFocused); |
|
4121 |
|
4122 // Limit rect size to screen size. If Rect() is way larger |
|
4123 // than screen, the svg engine will not cope handling that. |
|
4124 TRect r(ci.Size()); |
|
4125 TRect s; |
|
4126 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EScreen, s); |
|
4127 |
|
4128 if (r.Intersects(s)) |
|
4129 { |
|
4130 s.Intersection(r); |
|
4131 } |
|
4132 |
|
4133 TRect rect(s); |
|
4134 rect.Normalize(); // ensure positive w & h, just in case |
|
4135 |
|
4136 TAknLayoutRect topLeft ; |
|
4137 topLeft.LayoutRect(rect, SkinLayout::Input_field_skin_placing__general__Line_2()); |
|
4138 |
|
4139 TAknLayoutRect bottomRight; |
|
4140 bottomRight.LayoutRect(rect, SkinLayout::Input_field_skin_placing__general__Line_5()); |
|
4141 |
|
4142 TRect outerRect = TRect(topLeft.Rect().iTl, bottomRight.Rect().iBr); |
|
4143 TRect innerRect = TRect(topLeft.Rect().iBr, bottomRight.Rect().iTl); |
|
4144 |
|
4145 iHighlightedBackgroundCc->SetParentContext(iDisplayable.BackGroundControlContext()); |
|
4146 iHighlightedBackgroundCc->SetFrameRects(outerRect, innerRect); |
|
4147 |
|
4148 UpdateHighlightBackgroundPosition(); |
|
4149 } |
|
4150 |
|
4151 void CMIDForm::UpdateHighlightBackgroundPosition() |
|
4152 { |
|
4153 |
|
4154 if (iFocused != KErrNotFound) |
|
4155 { |
|
4156 CMIDControlItem& ci = ControlItem(iFocused); |
|
4157 TPoint highlightPosition = ci.PositionRelativeToScreen(); |
|
4158 TRect focusedRect = ci.Rect(); |
|
4159 |
|
4160 // Max size of the higlight background is limited to screen size, |
|
4161 // see SetHighlightBackgroundRects(). |
|
4162 // Need to adjust the highlight position if focused item is partially visible |
|
4163 // on top of the form and it is larger than screen. |
|
4164 if (focusedRect.iTl.iY < 0 && focusedRect.iBr.iY > 0) |
|
4165 { |
|
4166 TRect screen; |
|
4167 AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EScreen, screen); |
|
4168 if (focusedRect.Height() > screen.Height()) |
|
4169 { |
|
4170 if (focusedRect.iBr.iY > iSize.iHeight) |
|
4171 { |
|
4172 // Focused item fills the visible form area fully |
|
4173 highlightPosition.iY = 0; |
|
4174 } |
|
4175 else |
|
4176 { |
|
4177 // Bottom of focused item is in the visible form area |
|
4178 highlightPosition.iY += focusedRect.Height() - screen.Height(); |
|
4179 } |
|
4180 } |
|
4181 } |
|
4182 |
|
4183 iHighlightedBackgroundCc->SetParentPos(highlightPosition); |
|
4184 } |
|
4185 } |
|
4186 |
|
4187 void CMIDForm::HandlePhysicsPointerEventL(const TPointerEvent& aPointerEvent) |
|
4188 { |
|
4189 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4190 iLastPointerEventType = aPointerEvent.iType; |
|
4191 #endif |
|
4192 |
|
4193 if (iPhysics && iPhysics->CanBeStopped()) |
|
4194 { |
|
4195 switch (aPointerEvent.iType) |
|
4196 { |
|
4197 case TPointerEvent::EButton1Down: |
|
4198 { |
|
4199 iPreventPhysicsScrolling = EFalse; |
|
4200 iFlickStoppedOnDownEvent = iFlickOngoing; |
|
4201 iFeedbackExecutedInPointerDown = EFalse; |
|
4202 iPhysics->Stop(); |
|
4203 CMIDControlItem* ci = ControlItemAtPoint(aPointerEvent.iPosition); |
|
4204 |
|
4205 // Physics scrolling was not ongoing and tap hit already selected item. |
|
4206 // Then forward pointer event to the item. |
|
4207 if (ci && IsCurrentItem((CMIDItem*)ci) && !iFlickStoppedOnDownEvent) |
|
4208 { |
|
4209 iPointedControl = ci; |
|
4210 ForwardPointerEventToItemL(aPointerEvent); |
|
4211 } |
|
4212 else |
|
4213 { |
|
4214 // Tactile fedback is executed when kinetic scrolling is stopped on down event. |
|
4215 if (iFlickStoppedOnDownEvent) |
|
4216 { |
|
4217 #ifdef RD_TACTILE_FEEDBACK |
|
4218 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4219 iFeedback->InstantFeedback(ETouchFeedbackList); |
|
4220 #else |
|
4221 iFeedback->InstantFeedback(ETouchFeedbackBasic); |
|
4222 #endif // RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4223 iFeedbackExecutedInPointerDown = ETrue; |
|
4224 #endif // RD_TACTILE_FEEDBACK |
|
4225 } |
|
4226 |
|
4227 // Pointed control changes. |
|
4228 if (ci && ci->IsSelectable() && (MMIDItem*)ci != CurrentItem()) |
|
4229 { |
|
4230 iFocusChangingWithPen = ETrue; |
|
4231 } |
|
4232 |
|
4233 // Start highlight timer |
|
4234 iPointedControl = ci; |
|
4235 iHighlightTimer->Cancel(); |
|
4236 // Start highlight timer if some any control is tapped. |
|
4237 if (iPointedControl) |
|
4238 { |
|
4239 TInt highlightTimeout = iPhysics->HighlightDelay() * 1000; |
|
4240 if (IsPopupChoiceGroup(*iPointedControl)) |
|
4241 { |
|
4242 highlightTimeout /= 2; |
|
4243 } |
|
4244 iHighlightTimer->Start(TTimeIntervalMicroSeconds32(highlightTimeout), |
|
4245 TTimeIntervalMicroSeconds32(highlightTimeout), |
|
4246 TCallBack(HighlightTimerCallback, this)); |
|
4247 } |
|
4248 } |
|
4249 // Setup members |
|
4250 iStartPosition = aPointerEvent.iPosition; |
|
4251 iLastPointerDownEvent = aPointerEvent; |
|
4252 iUpEventSent = EFalse; |
|
4253 iStartTime.HomeTime(); |
|
4254 iLastDragPosition = aPointerEvent.iPosition; |
|
4255 |
|
4256 break; |
|
4257 } |
|
4258 // EDrag |
|
4259 case TPointerEvent::EDrag: |
|
4260 { |
|
4261 TInt dragY = iStartPosition.iY - aPointerEvent.iPosition.iY; |
|
4262 TInt dragX = iStartPosition.iX - aPointerEvent.iPosition.iX; |
|
4263 iDisplayable.TryDetectLongTapL(aPointerEvent); |
|
4264 |
|
4265 // Override triggering of physicsScrolling in case of doing text painting in TextField-item |
|
4266 // or moving slider in Gauge-item. |
|
4267 if (!iPreventPhysicsScrolling && iPointedControl && iPointedControl->iMMidItem && |
|
4268 iPointedControl->iMMidItem->Type() == MMIDComponent::ETextField) |
|
4269 { |
|
4270 // If physics scrolling is not ongoing (abs(dragY) < DragTreshold) |
|
4271 // then stop flicking and forward event to the item (iPreventPhysicsScrolling = ETrue). |
|
4272 if ((Abs(dragX) > iPhysics->DragThreshold()) && (Abs(dragY) < iPhysics->DragThreshold() |
|
4273 && !iPanningOngoing)) |
|
4274 { |
|
4275 iPreventPhysicsScrolling = ETrue; |
|
4276 } |
|
4277 } |
|
4278 |
|
4279 // Check whether DragTreshold for panning is exceeded. If yes, then cancel timer and longtap. |
|
4280 if (!iPanningOngoing && Abs(dragY) > iPhysics->DragThreshold() && !iPreventPhysicsScrolling) |
|
4281 { |
|
4282 iPanningOngoing = ETrue; |
|
4283 iHighlightTimer->Cancel(); |
|
4284 // Start panning from aPointerEvent.iPosition with iPhysics->DragThreshold() margin |
|
4285 iLastDragPosition = aPointerEvent.iPosition; |
|
4286 iPhysics->SetPanningPosition(iLastDragPosition - aPointerEvent.iPosition); |
|
4287 //Forward one drag event to the focused textField or Gauge when panning is triggered |
|
4288 if ((iFocused != KErrNotFound) |
|
4289 && IsTextFieldItem(ControlItem(iFocused))) |
|
4290 { |
|
4291 ControlItem(iFocused).HandlePointerEventL(aPointerEvent); |
|
4292 } |
|
4293 } |
|
4294 // If panning is already ongoing. Update panning position. Also we redraw entire Form |
|
4295 // to prevent unexpected behavior(artifacts on the screen) during flick scrolling and |
|
4296 // to make scrolling smoother. |
|
4297 else if (iPanningOngoing) |
|
4298 { |
|
4299 iPhysics->SetPanningPosition(iLastDragPosition - aPointerEvent.iPosition); |
|
4300 iLastDragPosition = aPointerEvent.iPosition; |
|
4301 DrawDeferred(); |
|
4302 } |
|
4303 // If dragged outside of StringItem area or panning starts, then up event is sent to the item. |
|
4304 if (!iUpEventSent && iPointedControl && IsStringItem(*iPointedControl) && (iPanningOngoing || |
|
4305 (iPointedControl && !iPointedControl->Rect().Contains(aPointerEvent.iPosition))) |
|
4306 ) |
|
4307 { |
|
4308 TPointerEvent pointerEvent = aPointerEvent; |
|
4309 pointerEvent.iType = TPointerEvent::EButton1Up; |
|
4310 ForwardPointerEventToItemL(pointerEvent); |
|
4311 iPointedControl = ControlItemAtPoint(aPointerEvent.iPosition); |
|
4312 iUpEventSent = ETrue; |
|
4313 } |
|
4314 // If physics scrolling is not ongoing forward event to the item. |
|
4315 else if (!iHighlightTimer->IsActive() && !PhysicsScrolling() && |
|
4316 (iPointedControl && iPointedControl->Rect().Contains(aPointerEvent.iPosition))) |
|
4317 { |
|
4318 ForwardPointerEventToItemL(aPointerEvent); |
|
4319 } |
|
4320 #ifdef RD_JAVA_S60_RELEASE_9_2 |
|
4321 // ChoiceGroup gets drag events while physics scrolling. |
|
4322 // Enables internal highlight disappearing when panning begins. |
|
4323 // We have control if there is any Item on Form. |
|
4324 else if (!iHighlightTimer->IsActive() |
|
4325 && (iFocused > KErrNotFound) |
|
4326 && IsChoiceGroup(ControlItem(iFocused)) |
|
4327 && PhysicsScrolling()) |
|
4328 { |
|
4329 ForwardPointerEventToItemL(aPointerEvent); |
|
4330 } |
|
4331 |
|
4332 #endif // RD_JAVA_S60_RELEASE_9_2 |
|
4333 break; |
|
4334 } |
|
4335 |
|
4336 // EButton1Up |
|
4337 case TPointerEvent::EButton1Up: |
|
4338 { |
|
4339 // If physics scrolling is ongoing then start flicking |
|
4340 // and forward event to the item. |
|
4341 if (iPanningOngoing && !iPreventPhysicsScrolling) |
|
4342 { |
|
4343 TPoint distance = iStartPosition - aPointerEvent.iPosition; |
|
4344 iFlickOngoing = iPhysics->StartFlick(distance, iStartTime); |
|
4345 } |
|
4346 |
|
4347 // If physics scrolling is not ongoing then only |
|
4348 // forward event to the item. |
|
4349 if (!iUpEventSent) |
|
4350 { |
|
4351 ForwardPointerEventToItemL(aPointerEvent); |
|
4352 iUpEventSent = ETrue; |
|
4353 } |
|
4354 |
|
4355 iPanningOngoing = EFalse; |
|
4356 iCanDragFocus = EFalse; |
|
4357 break; |
|
4358 } |
|
4359 default: |
|
4360 { |
|
4361 ForwardPointerEventToItemL(aPointerEvent); |
|
4362 break; |
|
4363 } |
|
4364 } |
|
4365 } |
|
4366 else |
|
4367 { |
|
4368 IgnoreEventsUntilNextPointerUp(); |
|
4369 return; |
|
4370 } |
|
4371 } |
|
4372 |
|
4373 void CMIDForm::ForwardPointerEventToItemL(const TPointerEvent& aPointerEvent) |
|
4374 { |
|
4375 if (iPointedControl) |
|
4376 { |
|
4377 // Drag events are not forwarded to CustomItem |
|
4378 if (!iFlickStoppedOnDownEvent && |
|
4379 !(IsCustomItem(*iPointedControl) && aPointerEvent.iType == TPointerEvent::EDrag)) |
|
4380 { |
|
4381 if (iFocused != KErrNotFound) |
|
4382 { |
|
4383 if (IsPopupChoiceGroup(*iPointedControl)) |
|
4384 { |
|
4385 iPointedControl->HandlePointerEventL(aPointerEvent); |
|
4386 } |
|
4387 else |
|
4388 { |
|
4389 ControlItem(iFocused).HandlePointerEventL(aPointerEvent); |
|
4390 } |
|
4391 } |
|
4392 |
|
4393 if (LayoutPending()) |
|
4394 { |
|
4395 LayoutFormL(); |
|
4396 DrawDeferred(); |
|
4397 } |
|
4398 } |
|
4399 |
|
4400 if (aPointerEvent.iType == TPointerEvent::EButton1Up) |
|
4401 { |
|
4402 iFocusChangingWithPen = EFalse; |
|
4403 } |
|
4404 } |
|
4405 } |
|
4406 |
|
4407 void CMIDForm::HandlePhysicsScroll(TInt aScroll, TBool aDrawNow, TUint /*aFlags*/) |
|
4408 { |
|
4409 iScroll = iScroll + aScroll; |
|
4410 if (aScroll) |
|
4411 { |
|
4412 iHasScrolled = ETrue; |
|
4413 } |
|
4414 iScrollDelta = aScroll; |
|
4415 SetRowPositionsWithRespectToScrolledLocation(); |
|
4416 |
|
4417 if (aDrawNow) |
|
4418 { |
|
4419 RawScrollFinalize(ETrue, ETrue); |
|
4420 DrawNow(); |
|
4421 } |
|
4422 else |
|
4423 { |
|
4424 RawScrollFinalize(ETrue, EFalse); |
|
4425 } |
|
4426 |
|
4427 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4428 //Tactile feedback on dragging/flicking. |
|
4429 DoScrollingFeedback(); |
|
4430 #endif //RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4431 } |
|
4432 |
|
4433 void CMIDForm::PhysicsScrollingEnd() |
|
4434 { |
|
4435 iFlickOngoing = EFalse; |
|
4436 iPanningOngoing = EFalse; |
|
4437 } |
|
4438 |
|
4439 TBool CMIDForm::PhysicsEnabled() |
|
4440 { |
|
4441 if (iPhysics) |
|
4442 { |
|
4443 return ETrue; |
|
4444 } |
|
4445 else |
|
4446 { |
|
4447 return EFalse; |
|
4448 } |
|
4449 } |
|
4450 |
|
4451 TBool CMIDForm::PhysicsScrolling() |
|
4452 { |
|
4453 return iFlickOngoing | iPanningOngoing; |
|
4454 } |
|
4455 |
|
4456 TInt CMIDForm::ScrollDelta() |
|
4457 { |
|
4458 return iScrollDelta; |
|
4459 } |
|
4460 |
|
4461 void CMIDForm::DoFeedbackOnFocusChange(CMIDControlItem& aControlItem) |
|
4462 { |
|
4463 //Tapping on StringItem BUTTON should not do feedback, here. |
|
4464 //Native class CAknButton does it by itself |
|
4465 if (!IsStringItemButton(aControlItem)) |
|
4466 { |
|
4467 //Other items should do some feedback |
|
4468 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4469 if (IsStringItemHyperlink(aControlItem)) |
|
4470 { |
|
4471 //if StringItem is HYPERLIK it should give sensitive button feedback |
|
4472 iFeedback->InstantFeedback(ETouchFeedbackSensitiveButton); |
|
4473 } |
|
4474 else if (IsImageItem(aControlItem)) |
|
4475 { |
|
4476 //if pointed control is ImageItem, its focusable, it has to be either |
|
4477 //HYPERLIK ot BUTTON, so it should give sensitive button feedback |
|
4478 iFeedback->InstantFeedback(ETouchFeedbackSensitiveButton); |
|
4479 } |
|
4480 else if (IsChoiceGroup(aControlItem)) |
|
4481 { |
|
4482 //tapping on unfocused ChoiceGroup makes also activation, so it should |
|
4483 //give basic list feedback |
|
4484 iFeedback->InstantFeedback(ETouchFeedbackList); |
|
4485 } |
|
4486 else |
|
4487 { |
|
4488 //changing focus to other items should give sensitive list feedback |
|
4489 iFeedback->InstantFeedback(ETouchFeedbackSensitiveList); |
|
4490 } |
|
4491 #else |
|
4492 iFeedback->InstantFeedback(ETouchFeedbackBasic); |
|
4493 #endif //RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4494 } |
|
4495 } |
|
4496 |
|
4497 #ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4498 void CMIDForm::UpdateTactileFeedbackDensity() |
|
4499 { |
|
4500 TAknLayoutRect layoutRect; |
|
4501 layoutRect.LayoutRect(TRect(), AknLayoutScalable_Avkon:: |
|
4502 list_single_heading_pane(0).LayoutLine()); |
|
4503 iTactileFeedbackDensity = layoutRect.Rect().Height(); |
|
4504 } |
|
4505 |
|
4506 void CMIDForm::DoScrollingFeedback() |
|
4507 { |
|
4508 TRect formRect(Rect()); |
|
4509 TInt topEdgePos = iScroll; |
|
4510 TInt bottomEdgePos = iScroll + HeightOfAllItems(); |
|
4511 // Calculate distance between current Form content position |
|
4512 // and previous position, where last feedback happened. |
|
4513 TInt lastFeedbackDistanceY = Abs(iLastTactileFeedbackPos - iScroll); |
|
4514 TTouchLogicalFeedback feedbackType(ETouchFeedbackNone); |
|
4515 if (lastFeedbackDistanceY >= iTactileFeedbackDensity) |
|
4516 { |
|
4517 if ((topEdgePos < formRect.iTl.iY) |
|
4518 && (bottomEdgePos > formRect.iBr.iY)) |
|
4519 { |
|
4520 // If top (or bottom) edge of the content is outside |
|
4521 // of visible area of Form, do feedback every time. |
|
4522 feedbackType = ETouchFeedbackSensitiveList; |
|
4523 } |
|
4524 else if (iLastPointerEventType != TPointerEvent::EButton1Up) |
|
4525 { |
|
4526 // Begining or end of the content reached (i.e. top or bottom |
|
4527 // egde of the contont is now visible): feedback is given |
|
4528 // only if user do panning. No feedback, if touch release |
|
4529 // happened. |
|
4530 feedbackType = ETouchFeedbackSensitiveList; |
|
4531 } |
|
4532 // Store the position of the content. |
|
4533 iLastTactileFeedbackPos = iScroll; |
|
4534 } |
|
4535 |
|
4536 if (iFeedback && feedbackType != ETouchFeedbackNone) |
|
4537 { |
|
4538 if (iLastPointerEventType != TPointerEvent::EButton1Up) |
|
4539 { |
|
4540 iFeedback->EnableFeedbackForControl(this, ETrue, ETrue); |
|
4541 } |
|
4542 else |
|
4543 { |
|
4544 // Disable audion feedback on flicking (i.e. user don't pan by |
|
4545 // touch input). |
|
4546 iFeedback->EnableFeedbackForControl(this, ETrue, EFalse); |
|
4547 } |
|
4548 // Do the feedback if needed. |
|
4549 iFeedback->InstantFeedback(this, feedbackType); |
|
4550 } |
|
4551 } |
|
4552 #endif //RD_JAVA_ADVANCED_TACTILE_FEEDBACK |
|
4553 |