1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <aknlists.h> |
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20 #include <eikspmod.h> |
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21 #include <eikclb.h> |
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22 #include <eikfrlb.h> |
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23 #include <eikslb.h> |
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24 #include <AknUtils.h> |
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25 #include <aknlayoutscalable_avkon.cdl.h> |
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26 #include <aknlayoutscalable_apps.cdl.h> |
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27 #include <layoutmetadata.cdl.h> |
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28 |
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29 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
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30 #include <aknlistboxtfxinternal.h> |
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31 #include <akntransitionutils.h> |
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32 #include <aknlistloadertfx.h> |
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33 #endif |
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34 |
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35 #include "mmlistboxmodel.h" |
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36 #include "mmlistbox.h" |
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37 #include "mmlistboxview.h" |
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38 #include "mmlistboxitemdrawer.h" |
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39 #include "mmmarqueeadapter.h" |
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40 #include "mmwidgetcontainer.h" |
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41 #include "mmwidgetsconstants.h" |
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42 #include "mmdraweranimator.h" |
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43 #include "mmtemplatelibrary.h" |
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44 |
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45 |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 // ----------------------------------------------------------------------------- |
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49 // |
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50 CMmListBox::CMmListBox() : AKNDOUBLELISTBOXNAME(R_LIST_PANE_LINES_AB_COLUMN) |
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51 { |
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52 // No implementation required |
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53 } |
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54 |
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55 // ----------------------------------------------------------------------------- |
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56 // |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 CMmListBox::~CMmListBox() |
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60 { |
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61 delete iRedrawTimer; |
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62 } |
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63 |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 // ----------------------------------------------------------------------------- |
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67 // |
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68 CMmListBox* CMmListBox::NewLC( const CCoeControl* aParent, TInt aFlags, |
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69 CMmTemplateLibrary* aTemplateLibrary ) |
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70 { |
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71 CMmListBox* self = new (ELeave)CMmListBox(); |
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72 CleanupStack::PushL(self); |
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73 self->ConstructL( aParent, aFlags, aTemplateLibrary ); |
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74 return self; |
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75 } |
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76 |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 void CMmListBox::SetListFlag( TInt aFlag ) |
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82 { |
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83 iListBoxFlags = iListBoxFlags | aFlag; |
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84 } |
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85 |
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86 // ----------------------------------------------------------------------------- |
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87 // |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 void CMmListBox::ClearListFlag( TInt aFlag ) |
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91 { |
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92 iListBoxFlags = iListBoxFlags & !aFlag; |
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93 } |
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94 |
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95 // ----------------------------------------------------------------------------- |
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96 // |
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97 // ----------------------------------------------------------------------------- |
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98 // |
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99 CMmListBox* CMmListBox::NewL( const CCoeControl* aParent, TInt aFlags, |
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100 CMmTemplateLibrary* aTemplateLibrary ) |
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101 { |
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102 CMmListBox* self = CMmListBox::NewLC( aParent, aFlags, aTemplateLibrary ); |
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103 CleanupStack::Pop( self ); |
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104 return self; |
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105 } |
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106 |
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107 // ----------------------------------------------------------------------------- |
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108 // |
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109 // ----------------------------------------------------------------------------- |
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110 // |
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111 void CMmListBox::ConstructL( const CCoeControl* aParent, TInt aFlags, |
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112 CMmTemplateLibrary* aTemplateLibrary ) |
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113 { |
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114 iDisableChildComponentDrawing = EFalse; |
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115 iModel = iMmModel = CMmListBoxModel::NewL(); |
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116 CreateItemDrawerL( aTemplateLibrary ); |
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117 |
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118 EnableExtendedDrawingL(); |
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119 |
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120 iItemDrawer->SetDrawMark(EFalse); |
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121 CEikListBox::ConstructL(aParent,aFlags); |
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122 iMmDrawer->SetView( this ); |
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123 iRedrawTimer = CPeriodic::NewL( EPriorityRealTime ); |
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124 } |
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125 |
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126 // ----------------------------------------------------------------------------- |
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127 // Clearing ELeftDownInViewRect flag before invoking the base class |
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128 // HandlePointerEventL method effectively prevents that method from doing most |
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129 // of the things it would normally do in response to EButton1Down event. |
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130 // This flag is explicitly cleared to achieve two things: |
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131 // 1. Prevent kinetic scrolling (flick) in edit mode. |
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132 // 2. Prevent highlight removal when popup menu is displayed. |
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133 // ----------------------------------------------------------------------------- |
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134 // |
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135 void CMmListBox::HandlePointerEventInEditModeL( |
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136 const TPointerEvent& aPointerEvent ) |
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137 { |
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138 if ( aPointerEvent.iType == TPointerEvent::EButton1Down ) |
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139 { |
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140 iButton1DownPos = aPointerEvent.iPosition; |
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141 } |
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142 else if ( aPointerEvent.iType == TPointerEvent::EButton1Up ) |
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143 { |
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144 CMmWidgetContainer* parent = static_cast<CMmWidgetContainer*>( Parent() ); |
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145 TPoint dragDelta = iButton1DownPos - aPointerEvent.iPosition; |
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146 if ( Abs( dragDelta.iY ) > KDragTreshold || parent->LongTapInProgress() ) |
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147 { |
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148 iListBoxFlags &= ~ELeftDownInViewRect; |
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149 } |
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150 } |
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151 |
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152 TInt itemUnderPointerIndex = KErrNotFound; |
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153 if ( aPointerEvent.iType == TPointerEvent::EButton1Up || |
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154 aPointerEvent.iType == TPointerEvent::EButton1Down ) |
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155 { |
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156 CEikFormattedCellListBoxTypedef::HandlePointerEventL( aPointerEvent ); |
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157 } |
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158 else if ( View()->XYPosToItemIndex( |
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159 aPointerEvent.iPosition, itemUnderPointerIndex ) ) |
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160 { |
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161 TInt currentItemIndex = CurrentItemIndex(); |
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162 if ( currentItemIndex != itemUnderPointerIndex ) |
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163 { |
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164 View()->SetCurrentItemIndex( itemUnderPointerIndex ); |
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165 // remove hightlight from the previously highlighted item |
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166 } |
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167 } |
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168 HandleScrollingInEditMode( aPointerEvent ); |
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169 } |
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170 |
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171 // ----------------------------------------------------------------------------- |
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172 // |
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173 // ----------------------------------------------------------------------------- |
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174 // |
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175 void CMmListBox::HandleScrollingInEditMode( const TPointerEvent& aPointerEvent ) |
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176 { |
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177 if ( aPointerEvent.iType == TPointerEvent::EDrag |
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178 || aPointerEvent.iType == TPointerEvent::EButtonRepeat ) |
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179 { |
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180 TInt nextScrollDelay = ScrollIfNeeded( aPointerEvent ); |
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181 if ( nextScrollDelay ) |
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182 { |
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183 TRect ignoreDragRect( |
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184 TPoint(aPointerEvent.iParentPosition.iX - MmEffects::KDragIgnoreRectValue, |
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185 aPointerEvent.iParentPosition.iY - MmEffects::KDragIgnoreRectValue), |
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186 TPoint(aPointerEvent.iParentPosition.iX + MmEffects::KDragIgnoreRectValue, |
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187 aPointerEvent.iParentPosition.iY + MmEffects::KDragIgnoreRectValue)); |
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188 |
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189 Window().CancelPointerRepeatEventRequest(); |
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190 Window().RequestPointerRepeatEvent( nextScrollDelay, ignoreDragRect ); |
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191 } |
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192 } |
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193 } |
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194 |
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195 // ----------------------------------------------------------------------------- |
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196 // |
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197 // ----------------------------------------------------------------------------- |
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198 // |
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199 TBool CMmListBox::IsPointerInTopScrollingThreshold( |
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200 const TPointerEvent& aPointerEvent ) const |
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201 { |
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202 TInt topScrollingTreshold = Rect().iTl.iY |
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203 + ( MmEffects::KFocusScrollingThreshold |
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204 * TReal( View()->ItemSize().iHeight ) ); |
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205 |
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206 return ( aPointerEvent.iPosition.iY < topScrollingTreshold ); |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // |
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211 // ----------------------------------------------------------------------------- |
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212 // |
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213 TBool CMmListBox::IsPointerInBottomScrollingThreshold( |
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214 const TPointerEvent& aPointerEvent ) const |
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215 { |
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216 TInt bottomScrollingTreshold = Rect().iBr.iY |
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217 - ( MmEffects::KFocusScrollingThreshold |
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218 * TReal( View()->ItemSize().iHeight ) ); |
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219 |
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220 return ( aPointerEvent.iPosition.iY > bottomScrollingTreshold ); |
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221 } |
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222 |
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223 // ----------------------------------------------------------------------------- |
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224 // |
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225 // ----------------------------------------------------------------------------- |
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226 // |
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227 TInt CMmListBox::ScrollIfNeeded( const TPointerEvent& aPointerEvent ) |
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228 { |
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229 TInt nextScrollDelay = 0; |
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230 |
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231 TBool readyForScrolling = |
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232 iMmDrawer->GetAnimator()->IsReadyForNewAnimation() |
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233 && iMmDrawer->GetFloatingItemCount() != 0; |
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234 |
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235 if ( IsPointerInTopScrollingThreshold( aPointerEvent ) ) |
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236 { |
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237 // scroll up by one row |
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238 TInt newCurrentItemIndex = CurrentItemIndex() - 1; |
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239 |
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240 if ( newCurrentItemIndex >= 0 ) |
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241 { |
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242 nextScrollDelay = MmEffects::KEditModeScrollingDelayFactor * |
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243 Max( 1, aPointerEvent.iPosition.iY - Rect().iTl.iY ); |
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244 if (readyForScrolling) |
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245 { |
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246 View()->VScrollTo( View()->CalcNewTopItemIndexSoItemIsVisible( |
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247 newCurrentItemIndex ) ); |
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248 View()->SetCurrentItemIndex( newCurrentItemIndex ); |
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249 UpdateScrollBarThumbs(); |
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250 } |
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251 } |
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252 } |
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253 else if ( IsPointerInBottomScrollingThreshold( aPointerEvent) ) |
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254 { |
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255 // scroll down by one row |
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256 TInt lastItemIndex = iModel->NumberOfItems() - 1; |
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257 TInt newCurrentItemIndex = CurrentItemIndex() + 1; |
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258 |
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259 |
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260 if ( newCurrentItemIndex <= lastItemIndex ) |
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261 { |
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262 nextScrollDelay = MmEffects::KEditModeScrollingDelayFactor * |
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263 Max( 1, Rect().iBr.iY - aPointerEvent.iPosition.iY ); |
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264 |
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265 if (readyForScrolling) |
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266 { |
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267 View()->VScrollTo( View()->CalcNewTopItemIndexSoItemIsVisible( |
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268 newCurrentItemIndex ) ); |
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269 View()->SetCurrentItemIndex( newCurrentItemIndex ); |
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270 UpdateScrollBarThumbs(); |
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271 } |
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272 } |
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273 } |
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274 |
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275 return nextScrollDelay; |
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276 } |
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277 |
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278 // ----------------------------------------------------------------------------- |
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279 // |
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280 // ----------------------------------------------------------------------------- |
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281 // |
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282 void CMmListBox::HandlePointerEventL(const TPointerEvent& aPointerEvent) |
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283 { |
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284 // if ( aPointerEvent.iType == TPointerEvent::EButton1Down && |
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285 // iMmDrawer->CachedDataUseIsEnabled() ) |
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286 // { |
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287 // // Touching the screen stops flick but avkon does not send us |
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288 // // MEikListBoxObserver::EEventFlickStopped event in such case. |
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289 // // Thus this little hack: |
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290 // iMmDrawer->EnableCachedDataUse( EFalse ); |
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291 // DrawView(); |
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292 // } |
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293 |
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294 CMmWidgetContainer* parent = static_cast<CMmWidgetContainer*>( Parent() ); |
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295 |
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296 if ( parent->IsEditMode() ) |
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297 { |
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298 HandlePointerEventInEditModeL( aPointerEvent ); |
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299 } |
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300 else |
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301 { |
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302 CEikFormattedCellListBoxTypedef::HandlePointerEventL( aPointerEvent ); |
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303 } |
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304 |
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305 if ( iMmDrawer->GetAnimator()->IsActive() ) |
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306 { |
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307 iMmDrawer->GetAnimator()->CancelNextRedrawL(); |
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308 } |
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309 |
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310 } |
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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 void CMmListBox::FixViewForMirroredLayout() |
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317 { |
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318 TInt scrollbarWidth = |
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319 ScrollBarFrame()->VerticalScrollBar()->Rect().Width(); |
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320 TRect r( View()->ViewRect() ); |
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321 TInt currentShift = r.iTl.iX; |
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322 TBool scrollbarVisible = ScrollBarFrame()->VerticalScrollBar()->IsVisible(); |
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323 TBool layoutMirrored = AknLayoutUtils::LayoutMirrored(); |
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324 |
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325 if ( layoutMirrored && scrollbarVisible && currentShift != scrollbarWidth ) |
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326 { |
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327 // shift view rect to the right |
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328 r.Move( scrollbarWidth - currentShift, 0 ); |
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329 View()->SetViewRect( r ); |
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330 } |
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331 else if ( ( !layoutMirrored || !scrollbarVisible ) && currentShift != 0 ) |
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332 { |
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333 // restore view rect to its normal position |
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334 r.Move( -currentShift, 0 ); |
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335 View()->SetViewRect( r ); |
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336 } |
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337 } |
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338 |
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339 // ----------------------------------------------------------------------------- |
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340 // |
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341 // ----------------------------------------------------------------------------- |
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342 // |
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343 void CMmListBox::RedrawScrollbarBackground() const |
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344 { |
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345 TRect viewRect( View()->ViewRect() ); |
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346 if ( viewRect.iTl.iX > 0 ) |
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347 { |
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348 TRect scrollbarRect( TPoint( 0, 0 ), |
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349 TSize( viewRect.iTl.iX, viewRect.Height() ) ); |
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350 |
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351 CWindowGc* gc = iItemDrawer->Gc(); |
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352 CMmListBoxItemDrawer* itemDrawer = |
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353 static_cast<CMmListBoxItemDrawer*>( iItemDrawer ); |
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354 MAknsSkinInstance *skin = AknsUtils::SkinInstance(); |
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355 CCoeControl* control = itemDrawer->FormattedCellData()->Control(); |
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356 MAknsControlContext *cc = AknsDrawUtils::ControlContext( control ); |
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357 if( gc ) |
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358 { |
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359 if ( control ) |
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360 { |
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361 AknsDrawUtils::Background( skin, cc, control, *gc, scrollbarRect ); |
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362 } |
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363 else |
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364 { |
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365 gc->SetBrushColor( BackColor() ); |
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366 gc->Clear( scrollbarRect ); |
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367 } |
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368 } |
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369 } |
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370 } |
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371 |
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372 // ----------------------------------------------------------------------------- |
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373 // |
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374 // ----------------------------------------------------------------------------- |
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375 // |
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376 void CMmListBox::ProcessScrollEventL( CEikScrollBar* aScrollBar, |
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377 TEikScrollEvent aEventType ) |
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378 { |
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379 CEikFormattedCellListBoxTypedef::HandleScrollEventL( |
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380 aScrollBar, aEventType ); |
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381 } |
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382 |
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383 // ----------------------------------------------------------------------------- |
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384 // |
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385 // ----------------------------------------------------------------------------- |
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386 // |
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387 void CMmListBox::HandleRedrawTimerEvent() |
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388 { |
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389 if ( iSkippedScrollbarEventsCount ) |
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390 { |
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391 ProcessScrollEventL( ScrollBarFrame()->VerticalScrollBar(), |
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392 EEikScrollThumbDragVert ); |
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393 } |
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394 iSkippedScrollbarEventsCount = 0; |
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395 } |
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396 |
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397 // ----------------------------------------------------------------------------- |
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398 // |
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399 // ----------------------------------------------------------------------------- |
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400 // |
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401 TInt CMmListBox::RedrawTimerCallback( TAny* aPtr ) |
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402 { |
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403 CMmListBox* self = static_cast<CMmListBox*>( aPtr ); |
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404 self->HandleRedrawTimerEvent(); |
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405 return 0; |
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406 } |
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407 |
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408 // ----------------------------------------------------------------------------- |
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409 // |
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410 // ----------------------------------------------------------------------------- |
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411 // |
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412 TKeyResponse CMmListBox::OfferKeyEventL( |
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413 const TKeyEvent& aKeyEvent,TEventCode aType ) |
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414 { |
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415 TInt itemIndex = CurrentItemIndex(); |
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416 TInt previousItemIndex = CurrentItemIndex(); |
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417 TKeyResponse ret = CEikFormattedCellListBoxTypedef::OfferKeyEventL( |
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418 aKeyEvent, aType ); |
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419 TInt currentItemIndex = CurrentItemIndex(); |
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420 |
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421 TInt itemY = View()->ItemPos( currentItemIndex ).iY |
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422 + View()->ItemSize( currentItemIndex ).iHeight; |
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423 |
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424 if ( currentItemIndex == BottomItemIndex() |
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425 && currentItemIndex != previousItemIndex |
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426 && itemY > View()->ViewRect().iBr.iY ) |
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427 { |
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428 if( aType == EEventKey ) |
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429 { |
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430 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
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431 MAknListBoxTfxInternal* transApi = CAknListLoader::TfxApiInternal( |
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432 View()->ItemDrawer()->Gc() ); |
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433 TBool effects = transApi && !transApi->EffectsDisabled(); |
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434 if ( effects ) |
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435 { |
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436 transApi->SetMoveType( MAknListBoxTfxInternal::EListScrollDown ); |
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437 } |
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438 #endif |
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439 iView->VScrollTo( |
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440 iView->CalcNewTopItemIndexSoItemIsVisible( currentItemIndex ) ); |
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441 |
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442 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
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443 if ( effects ) |
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444 { |
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445 transApi->Draw( Rect() ); |
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446 } |
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447 #endif |
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448 } |
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449 SetCurrentItemIndex( currentItemIndex ); |
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450 } |
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451 |
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452 RedrawIfNecessary( itemIndex, CurrentItemIndex()); |
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453 return ret; |
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454 } |
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455 |
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456 // ----------------------------------------------------------------------------- |
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457 // |
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458 // ----------------------------------------------------------------------------- |
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459 // |
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460 TBool CMmListBox::RedrawIfNecessary( TInt aPreviousCurrent, TInt aCurrent ) |
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461 { |
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462 TBool redrawConsumed( EFalse ); |
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463 if( aCurrent == KErrNotFound ) |
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464 { |
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465 return redrawConsumed; |
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466 } |
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467 |
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468 CMmListBoxView * view = static_cast<CMmListBoxView *>(iView); |
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469 TInt differenceIndex = Abs( aPreviousCurrent - aCurrent ); |
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470 if ( aPreviousCurrent == KErrNotFound || differenceIndex == 0 ) |
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471 { |
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472 //TODO: It should be checked if this is really necessary |
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473 view->RedrawBackground(); |
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474 return redrawConsumed; |
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475 } |
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476 |
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477 TInt sizePrevBefore = iMmDrawer->GetItemHeight(aPreviousCurrent, ETrue); |
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478 TInt sizeCurBefore = iMmDrawer->GetItemHeight(aCurrent, EFalse); |
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479 TInt sizePrevAfter = iMmDrawer->GetItemHeight(aPreviousCurrent, EFalse); |
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480 TInt sizeCurAfter = iMmDrawer->GetItemHeight(aCurrent, ETrue); |
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481 |
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482 if ( ( sizePrevBefore == sizePrevAfter ) && (sizeCurBefore == sizeCurAfter) ) |
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483 { |
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484 return redrawConsumed; |
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485 } |
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486 else |
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487 { |
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488 TInt sizeAllBefore = sizePrevBefore + sizePrevAfter; |
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489 TInt sizeAllAfter = sizeCurBefore + sizeCurAfter; |
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490 |
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491 TInt lastPotentialItemIndex = Min( iModel->NumberOfItems(), |
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492 iView->TopItemIndex() + iView->NumberOfItemsThatFitInRect( |
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493 iView->ViewRect() ) ); |
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494 TInt redrawIndex = lastPotentialItemIndex; |
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495 |
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496 if ( differenceIndex == 1 ) |
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497 { |
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498 if( sizeAllBefore != sizeAllAfter ) |
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499 { |
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500 redrawIndex = Min( aPreviousCurrent, aCurrent ); |
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501 } |
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502 else |
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503 { |
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504 return redrawConsumed; |
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505 } |
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506 } |
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507 else if ( differenceIndex > 1 && sizeAllBefore == sizeAllAfter ) |
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508 { |
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509 redrawIndex = Min( aPreviousCurrent, aCurrent ); |
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510 lastPotentialItemIndex = Max( aPreviousCurrent, aCurrent ); |
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511 } |
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512 else if ( differenceIndex > 1 ) |
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513 { |
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514 redrawIndex = Min( aPreviousCurrent, aCurrent ); |
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515 } |
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516 |
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517 if (redrawIndex < iView->TopItemIndex()) |
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518 redrawIndex = iView->TopItemIndex(); |
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519 |
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520 if (lastPotentialItemIndex > iView->BottomItemIndex()) |
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521 lastPotentialItemIndex = iView->BottomItemIndex(); |
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522 |
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523 if ( aPreviousCurrent < TopItemIndex() ) |
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524 { |
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525 lastPotentialItemIndex = BottomItemIndex() ; |
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526 } |
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527 else if ( BottomItemIndex() < aPreviousCurrent ) |
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528 { |
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529 lastPotentialItemIndex = BottomItemIndex() + 1; |
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530 } |
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531 |
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532 while ( redrawIndex < lastPotentialItemIndex +1 ) |
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533 { |
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534 view->DrawSingleItem( redrawIndex++ ); |
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535 redrawConsumed = ETrue; |
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536 } |
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537 |
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538 view->RedrawBackground(); |
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539 } |
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540 return redrawConsumed; |
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541 } |
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542 |
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543 // ----------------------------------------------------------------------------- |
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544 // |
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545 // ----------------------------------------------------------------------------- |
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546 // |
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547 void CMmListBox::CreateItemDrawerL( CMmTemplateLibrary* aTemplateLibrary ) |
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548 { |
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549 CFormattedCellListBoxData* cellData=CFormattedCellListBoxData::NewL(); |
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550 CleanupStack::PushL( cellData ); |
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551 iItemDrawer = iMmDrawer = CMmListBoxItemDrawer::NewL( MmModel(), |
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552 iEikonEnv->NormalFont(), cellData, EListbox, aTemplateLibrary ); |
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553 CleanupStack::Pop( cellData ); |
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554 } |
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555 |
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556 // ----------------------------------------------------------------------------- |
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557 // |
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558 // ----------------------------------------------------------------------------- |
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559 // |
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560 CMmListBoxModel* CMmListBox::MmModel() |
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561 { |
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562 return iMmModel; |
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563 } |
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564 |
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565 // ----------------------------------------------------------------------------- |
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566 // |
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567 // ----------------------------------------------------------------------------- |
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568 // |
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569 void CMmListBox::SetMmModel( CMmListBoxModel* aMmModel ) |
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570 { |
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571 if ( iMmModel != aMmModel ) |
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572 { |
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573 delete iMmModel; |
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574 iMmModel = aMmModel; |
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575 } |
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576 } |
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577 |
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578 // ----------------------------------------------------------------------------- |
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579 // |
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580 // ----------------------------------------------------------------------------- |
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581 // |
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582 CListBoxView* CMmListBox::MakeViewClassInstanceL() |
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583 { |
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584 return CMmListBoxView::NewL(); |
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585 } |
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586 |
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587 // ----------------------------------------------------------------------------- |
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588 // |
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589 // ----------------------------------------------------------------------------- |
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590 // |
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591 TInt CMmListBox::AdjustRectHeightToWholeNumberOfItems(TRect& /*aRect*/) const |
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592 { |
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593 return KErrNone; |
|
594 } |
|
595 |
|
596 // ----------------------------------------------------------------------------- |
|
597 // |
|
598 // ----------------------------------------------------------------------------- |
|
599 // |
|
600 void CMmListBox::SetItemDrawerAndViewBgContext (CAknsBasicBackgroundControlContext * aBgContext) |
|
601 { |
|
602 iMmDrawer->SetBgContext (aBgContext); |
|
603 } |
|
604 |
|
605 // ----------------------------------------------------------------------------- |
|
606 // |
|
607 // ----------------------------------------------------------------------------- |
|
608 // |
|
609 TBool CMmListBox::HandleScrollbarVisibilityChangeL() |
|
610 { |
|
611 TBool ret = EFalse; |
|
612 if ( AllItemsFitInViewRect() ) |
|
613 { |
|
614 if ( ScrollBarFrame()->VerticalScrollBar()->IsVisible() |
|
615 || iMmDrawer->TemplateLibrary()->GetScrollbarVisibility() ) |
|
616 { |
|
617 ScrollBarFrame()->VerticalScrollBar()->MakeVisible( EFalse ); |
|
618 iMmDrawer->SetScrollbarVisibilityL( EFalse ); |
|
619 |
|
620 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
621 MAknListBoxTfxInternal *trans = CAknListLoader::TfxApiInternal( ItemDrawer()->Gc() ); |
|
622 if ( trans ) |
|
623 { |
|
624 trans->Remove( MAknListBoxTfxInternal::EListEverything ); |
|
625 } |
|
626 #endif |
|
627 |
|
628 ret = ETrue; //redraw is needed |
|
629 } |
|
630 } |
|
631 else if ( !ScrollBarFrame()->VerticalScrollBar()->IsVisible() |
|
632 || !iMmDrawer->TemplateLibrary()->GetScrollbarVisibility() ) |
|
633 { |
|
634 ScrollBarFrame()->VerticalScrollBar()->MakeVisible( ETrue ); |
|
635 iMmDrawer->SetScrollbarVisibilityL( ETrue ); |
|
636 ret = ETrue; //redraw is needed |
|
637 } |
|
638 return ret; |
|
639 } |
|
640 |
|
641 |
|
642 // ----------------------------------------------------------------------------- |
|
643 // |
|
644 // ----------------------------------------------------------------------------- |
|
645 // |
|
646 TBool CMmListBox::AllItemsFitInViewRect() |
|
647 { |
|
648 CMmListBoxView* view = static_cast< CMmListBoxView* >(iView); |
|
649 TInt totalHeight = view->GetTotalHeight( view->TopItemIndex(), view->BottomItemIndex()); |
|
650 if ( view->TopItemIndex() == 0 && iMmModel->NumberOfItems() <= view->BottomItemIndex() + 1 |
|
651 && totalHeight <= iView->ViewRect().Height() ) |
|
652 { |
|
653 return ETrue; |
|
654 } |
|
655 else |
|
656 { |
|
657 return EFalse; |
|
658 } |
|
659 } |
|
660 |
|
661 /** |
|
662 * Helper class whose only purpose is to ensure that |
|
663 * ScrollToItem method will be always re-enabled. |
|
664 */ |
|
665 struct TScrollToItemEnabler |
|
666 { |
|
667 CMmListBoxView* iV; |
|
668 void Close() { iV->DisableScrollToItem( EFalse ); } |
|
669 }; |
|
670 |
|
671 // ----------------------------------------------------------------------------- |
|
672 // |
|
673 // ----------------------------------------------------------------------------- |
|
674 // |
|
675 void CMmListBox::UpdateScrollBarsL() |
|
676 { |
|
677 TBool redrawNeeded = HandleScrollbarVisibilityChangeL(); |
|
678 if (ScrollBarFrame()->VerticalScrollBar()->IsVisible()) |
|
679 { |
|
680 CMmListBoxView* view = static_cast<CMmListBoxView*>( View() ); |
|
681 view->DisableScrollToItem( ETrue ); |
|
682 TScrollToItemEnabler reverter = { view }; |
|
683 CleanupClosePushL( reverter ); |
|
684 CEikFormattedCellListBoxTypedef::UpdateScrollBarsL(); |
|
685 CleanupStack::PopAndDestroy( &reverter ); |
|
686 } |
|
687 iMmDrawer->TemplateLibrary()->SetScrollbarWidthL( |
|
688 ScrollBarFrame()->VerticalScrollBar()->Rect().Width() ); |
|
689 FixViewForMirroredLayout(); |
|
690 if ( redrawNeeded ) |
|
691 { |
|
692 DrawNow(); |
|
693 } |
|
694 } |
|
695 |
|
696 // ----------------------------------------------------------------------------- |
|
697 // |
|
698 // ----------------------------------------------------------------------------- |
|
699 // |
|
700 void CMmListBox::UpdateScrollBarsNoRedrawL() |
|
701 { |
|
702 HandleScrollbarVisibilityChangeL(); |
|
703 if ( ScrollBarFrame()->VerticalScrollBar()->IsVisible() ) |
|
704 { |
|
705 CMmListBoxView* view = static_cast<CMmListBoxView*>( View() ); |
|
706 view->DisableScrollToItem( ETrue ); |
|
707 TScrollToItemEnabler reverter = { view }; |
|
708 CleanupClosePushL( reverter ); |
|
709 CEikFormattedCellListBoxTypedef::UpdateScrollBarsL(); |
|
710 CleanupStack::PopAndDestroy( &reverter ); |
|
711 iMmDrawer->TemplateLibrary()->SetScrollbarWidthL( |
|
712 ScrollBarFrame()->VerticalScrollBar()->Rect().Width() ); |
|
713 } |
|
714 } |
|
715 |
|
716 // ----------------------------------------------------------------------------- |
|
717 // |
|
718 // ----------------------------------------------------------------------------- |
|
719 // |
|
720 void CMmListBox::SetMarqueeAdapter( CMmMarqueeAdapter* aAdapter ) |
|
721 { |
|
722 iMarqueeAdapter = aAdapter; |
|
723 iMarqueeAdapter->SetControl( const_cast< CMmListBox *>(this) ); |
|
724 } |
|
725 |
|
726 // ----------------------------------------------------------------------------- |
|
727 // |
|
728 // ----------------------------------------------------------------------------- |
|
729 // |
|
730 void CMmListBox::SetMarqueeDrawing( TBool aIsMarqueeBeingDrawn ) |
|
731 { |
|
732 iMmDrawer->SetMarqueeDrawing( aIsMarqueeBeingDrawn ); |
|
733 } |
|
734 |
|
735 // ----------------------------------------------------------------------------- |
|
736 // |
|
737 // ----------------------------------------------------------------------------- |
|
738 // |
|
739 void CMmListBox::HandleItemRemovalL() |
|
740 { |
|
741 CEikFormattedCellListBoxTypedef::HandleItemRemovalL(); |
|
742 DrawNow(); |
|
743 //avkon does not redraw the items for listbox when item is |
|
744 //removed. This needs to be forced here. |
|
745 UpdateScrollBarsL(); |
|
746 } |
|
747 |
|
748 // ----------------------------------------------------------------------------- |
|
749 // If a parent to the supplied control has its Gc set, this function will find |
|
750 // it and return it. (Copied from EIKLBX.CPP, needed by CMmListBox::Draw) |
|
751 // ----------------------------------------------------------------------------- |
|
752 // |
|
753 LOCAL_C CWindowGc* ReplaceGcWithCustomGc( const CEikListBox* aListBox ) |
|
754 { |
|
755 const CCoeControl* parent = aListBox; |
|
756 CWindowGc* customGc; |
|
757 while(parent) |
|
758 { |
|
759 customGc = parent->GetGc(); |
|
760 if ( customGc ) |
|
761 { |
|
762 CListItemDrawer* itemDrawer = aListBox->View()->ItemDrawer(); |
|
763 CWindowGc* originalGc = itemDrawer->Gc(); |
|
764 if ( customGc == originalGc ) |
|
765 { |
|
766 return NULL; |
|
767 } |
|
768 else |
|
769 { |
|
770 itemDrawer->SetGc( customGc ); |
|
771 return originalGc; |
|
772 } |
|
773 } |
|
774 parent = parent->Parent(); |
|
775 } |
|
776 return NULL; |
|
777 } |
|
778 |
|
779 // ----------------------------------------------------------------------------- |
|
780 // |
|
781 // ----------------------------------------------------------------------------- |
|
782 // |
|
783 void CMmListBox::Draw(const TRect& aRect) const |
|
784 { |
|
785 // if (!iResized) |
|
786 // { |
|
787 // return; |
|
788 // } |
|
789 |
|
790 CWindowGc* gc = this->iItemDrawer->Gc(); |
|
791 |
|
792 // If a parent has a custom gc, draw listbox using that gc |
|
793 CWindowGc* replacedGc = ReplaceGcWithCustomGc( |
|
794 static_cast<const CEikListBox*>( this ) ); |
|
795 |
|
796 if (this->iModel->NumberOfItems() == 0) |
|
797 { |
|
798 this->iView->DrawEmptyList(this->Rect()); |
|
799 |
|
800 if ( replacedGc ) |
|
801 { |
|
802 // Stop using the custom gc |
|
803 this->iItemDrawer->SetGc( replacedGc ); |
|
804 } |
|
805 return; |
|
806 } |
|
807 |
|
808 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
809 MAknListBoxTfxInternal *transApi = CAknListLoader::TfxApiInternal( gc ); |
|
810 |
|
811 if ( transApi ) |
|
812 { |
|
813 transApi->SetListType( MAknListBoxTfxInternal::EListBoxTypeMainPane ); |
|
814 // ViewRect might have been moved to the right to prevent grid items |
|
815 // from overlapping the scrollbar in mirrored layout. |
|
816 // However, we still have to draw scrollbar background, thus the |
|
817 // rectangle object passed to MAknListBoxTfxInternal::BeginRedraw must |
|
818 // be placed at (0, 0) so that it covers the area where scrollbar is |
|
819 // drawn. |
|
820 TRect r( View()->ViewRect().Size() ); |
|
821 transApi->BeginRedraw( MAknListBoxTfxInternal::EListView, r ); |
|
822 } |
|
823 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
824 if (!this->iView->RedrawDisabled()) |
|
825 { |
|
826 MAknsControlContext *cc = AknsDrawUtils::ControlContext( this ); |
|
827 if (!cc) cc = ItemDrawer()->FormattedCellData()->SkinBackgroundContext(); |
|
828 |
|
829 if (gc) |
|
830 { |
|
831 TRect clientRect; |
|
832 this->RestoreClientRectFromViewRect(clientRect); |
|
833 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
834 if ( transApi ) |
|
835 { |
|
836 transApi->StartDrawing( MAknListBoxTfxInternal::EListView ); |
|
837 } |
|
838 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
839 gc->SetBrushColor(this->BackColor()); |
|
840 AknsDrawUtils::BackgroundBetweenRects( AknsUtils::SkinInstance(), cc, this, *gc, clientRect, this->iView->ViewRect() ); |
|
841 RedrawScrollbarBackground(); |
|
842 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
843 if ( transApi ) |
|
844 { |
|
845 transApi->StopDrawing(); |
|
846 } |
|
847 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
848 } |
|
849 } |
|
850 if ( this->iModel->NumberOfItems() ) |
|
851 { |
|
852 // finally, draw the actual list |
|
853 this->iView->Draw(&aRect); |
|
854 } |
|
855 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
856 if ( transApi ) |
|
857 { |
|
858 CMmListBoxView* view = static_cast<CMmListBoxView*>( View() ); |
|
859 view->DisableScrollToItem( ETrue ); |
|
860 transApi->EndViewRedraw( aRect ); |
|
861 view->DisableScrollToItem( EFalse ); |
|
862 } |
|
863 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
864 if ( replacedGc ) |
|
865 { |
|
866 // Stop using the custom gc |
|
867 this->iItemDrawer->SetGc( replacedGc ); |
|
868 } |
|
869 } |
|
870 |
|
871 // ----------------------------------------------------------------------------- |
|
872 // |
|
873 // ----------------------------------------------------------------------------- |
|
874 // |
|
875 void CMmListBox::DrawView() |
|
876 { |
|
877 iDisableChildComponentDrawing = ETrue; |
|
878 DrawNow(Rect()); |
|
879 iDisableChildComponentDrawing = EFalse; |
|
880 } |
|
881 |
|
882 // ----------------------------------------------------------------------------- |
|
883 // |
|
884 // ----------------------------------------------------------------------------- |
|
885 // |
|
886 void CMmListBox::SetVerticalItemOffset( TInt aOffset ) |
|
887 { |
|
888 static_cast<CMmListBoxView*>( View() )->SetItemOffsetInPixels( aOffset ); |
|
889 UpdateScrollBarThumbs(); |
|
890 } |
|
891 |
|
892 // ----------------------------------------------------------------------------- |
|
893 // |
|
894 // ----------------------------------------------------------------------------- |
|
895 // |
|
896 TInt CMmListBox::VerticalItemOffset() const |
|
897 { |
|
898 return static_cast<CMmListBoxView*>( View() )->VerticalItemOffset(); |
|
899 } |
|
900 |
|
901 // ----------------------------------------------------------------------------- |
|
902 // |
|
903 // ----------------------------------------------------------------------------- |
|
904 // |
|
905 void CMmListBox::SetItemHeight( TInt aItemHeight ) |
|
906 { |
|
907 if ( aItemHeight != iItemHeight ) |
|
908 { |
|
909 iItemHeight = aItemHeight; |
|
910 TRAP_IGNORE( UpdateScrollBarsNoRedrawL() ); |
|
911 } |
|
912 } |
|
913 |
|
914 // ----------------------------------------------------------------------------- |
|
915 // |
|
916 // ----------------------------------------------------------------------------- |
|
917 // |
|
918 void CMmListBox::UpdateScrollBarThumbs() |
|
919 { |
|
920 CEikFormattedCellListBox::UpdateScrollBarThumbs(); |
|
921 } |
|
922 |
|
923 // ----------------------------------------------------------------------------- |
|
924 // |
|
925 // ----------------------------------------------------------------------------- |
|
926 // |
|
927 TInt CMmListBox::CountComponentControls() const |
|
928 { |
|
929 TInt componentControls(0); |
|
930 if ( !iDisableChildComponentDrawing ) |
|
931 { |
|
932 componentControls = CEikFormattedCellListBoxTypedef::CountComponentControls(); |
|
933 } |
|
934 return componentControls; |
|
935 } |
|
936 // ----------------------------------------------------------------------------- |
|
937 // |
|
938 // ----------------------------------------------------------------------------- |
|
939 // |
|
940 void CMmListBox::SetDisableChildComponentDrawing( TBool aDisable ) |
|
941 { |
|
942 iDisableChildComponentDrawing = aDisable; |
|
943 } |
|
944 |
|
945 // ----------------------------------------------------------------------------- |
|
946 // |
|
947 // ----------------------------------------------------------------------------- |
|
948 // |
|
949 void CMmListBox::HandleScrollEventL( CEikScrollBar* aScrollBar, |
|
950 TEikScrollEvent aEventType ) |
|
951 { |
|
952 if ( aEventType == EEikScrollThumbDragVert && !iScrollbarThumbIsBeingDragged ) |
|
953 { |
|
954 iScrollbarThumbIsBeingDragged = ETrue; |
|
955 static_cast<CMmListBoxItemDrawer*>( |
|
956 View()->ItemDrawer() )->EnableCachedDataUse( ETrue ); |
|
957 iRedrawTimer->Start( KScrollingRedrawInterval, KScrollingRedrawInterval, |
|
958 TCallBack( &CMmListBox::RedrawTimerCallback, static_cast<TAny*>( this ) ) ); |
|
959 } |
|
960 else if ( aEventType == EEikScrollThumbReleaseVert ) |
|
961 { |
|
962 iScrollbarThumbIsBeingDragged = EFalse; |
|
963 static_cast<CMmListBoxItemDrawer*>( |
|
964 View()->ItemDrawer() )->EnableCachedDataUse( EFalse ); |
|
965 // The view will be redrawn with cache disabled when ProcessScrollEventL |
|
966 // calls the base class's HandleScrollEventL method -- no need to |
|
967 // explicitly redraw the view. |
|
968 iRedrawTimer->Cancel(); |
|
969 } |
|
970 |
|
971 if ( !iScrollbarThumbIsBeingDragged ) |
|
972 { |
|
973 ProcessScrollEventL( aScrollBar, aEventType ); |
|
974 } |
|
975 else |
|
976 { |
|
977 __ASSERT_DEBUG( aEventType == EEikScrollThumbDragVert, User::Invariant() ); |
|
978 ++iSkippedScrollbarEventsCount; |
|
979 } |
|
980 } |
|
981 |
|
982 // End of file |
|