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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: MR listpane physics impl |
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15 * |
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16 */ |
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17 |
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18 #include "cmrlistpanephysics.h" |
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19 #include "cmrlistpane.h" |
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20 #include "nmrlayoutmanager.h" |
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21 #include "cmrfieldcontainer.h" |
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22 |
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23 #include <aknphysics.h> |
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24 |
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25 //DEBUG |
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26 #include "emailtrace.h" |
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27 |
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28 |
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29 // --------------------------------------------------------------------------- |
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30 // CMRListPanePhysics::CMRListPanePhysics |
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31 // --------------------------------------------------------------------------- |
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32 // |
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33 CMRListPanePhysics::CMRListPanePhysics( |
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34 CCoeControl& aParent, |
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35 CMRFieldContainer& aViewControl, |
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36 MMRPhysicsObserver& aPhysicsObserver ) |
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37 : iParent( aParent ), |
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38 iViewControl( aViewControl ), |
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39 iPhysicsObserver( aPhysicsObserver ) |
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40 { |
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41 FUNC_LOG; |
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42 } |
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43 |
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44 // --------------------------------------------------------------------------- |
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45 // CMRListPanePhysics::ConstructL |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 void CMRListPanePhysics::ConstructL() |
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49 { |
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50 FUNC_LOG; |
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51 iFeatureEnabled = CAknPhysics::FeatureEnabled(); |
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52 if ( iFeatureEnabled ) |
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53 { |
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54 // Physics: Create physics |
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55 // Give pointer to control that should be able to flick/drag |
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56 iPhysics = CAknPhysics::NewL( *this, &iViewControl ); |
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57 } |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // CMRListPanePhysics::NewL |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 CMRListPanePhysics* CMRListPanePhysics::NewL( |
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65 CCoeControl& aParent, |
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66 CMRFieldContainer& aViewControl, |
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67 MMRPhysicsObserver& aPhysicsObserver ) |
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68 { |
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69 FUNC_LOG; |
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70 CMRListPanePhysics* self = |
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71 new ( ELeave ) CMRListPanePhysics( |
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72 aParent, |
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73 aViewControl, |
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74 aPhysicsObserver ); |
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75 CleanupStack::PushL( self ); |
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76 self->ConstructL(); |
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77 CleanupStack::Pop( self ); |
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78 return self; |
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79 } |
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80 |
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81 // --------------------------------------------------------------------------- |
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82 // CMRListPanePhysics::~CMRListPanePhysics |
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83 // --------------------------------------------------------------------------- |
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84 // |
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85 CMRListPanePhysics::~CMRListPanePhysics() |
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86 { |
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87 FUNC_LOG; |
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88 delete iPhysics; |
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89 } |
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90 |
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91 // --------------------------------------------------------------------------- |
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92 // CMRListPanePhysics::HandlePointerEventL |
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93 // --------------------------------------------------------------------------- |
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94 // |
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95 TBool CMRListPanePhysics::HandlePointerEventL( |
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96 const TPointerEvent& aPointerEvent, TBool& aEventsBlocked ) |
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97 { |
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98 FUNC_LOG; |
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99 TBool physicsStarted( EFalse ); |
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100 if ( !iFeatureEnabled || iPhysics->OngoingPhysicsAction() == |
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101 CAknPhysics::EAknPhysicsActionBouncing ) |
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102 { |
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103 return physicsStarted; |
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104 } |
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105 |
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106 // Down |
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107 if ( aPointerEvent.iType == TPointerEvent::EButton1Down ) |
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108 { |
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109 if ( iPhysics->OngoingPhysicsAction() |
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110 != CAknPhysics::EAknPhysicsActionNone ) |
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111 { |
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112 iPhysics->StopPhysics(); |
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113 } |
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114 |
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115 // Save start time and start point |
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116 iStartTime.HomeTime(); |
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117 iStartPoint = aPointerEvent.iPosition; |
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118 iDragPoint = iStartPoint; |
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119 } |
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120 |
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121 // Drag |
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122 else if ( aPointerEvent.iType == TPointerEvent::EDrag ) |
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123 { |
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124 // Check how position was changed and report to physics |
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125 TPoint deltaPoint( iDragPoint - aPointerEvent.iPosition ); |
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126 if( Abs( deltaPoint.iY ) > iPhysics->DragThreshold() ) |
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127 { |
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128 iDragPoint = aPointerEvent.iPosition; |
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129 iPhysics->RegisterPanningPosition( deltaPoint ); |
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130 } |
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131 } |
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132 |
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133 // Up |
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134 else if ( aPointerEvent.iType == TPointerEvent::EButton1Up ) |
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135 { |
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136 // Calculate dragging distance |
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137 TPoint drag( iStartPoint - aPointerEvent.iPosition ); |
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138 |
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139 if( Abs( drag.iY ) > iPhysics->DragThreshold() ) |
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140 { |
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141 // Start physics |
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142 physicsStarted = iPhysics->StartPhysics( drag, iStartTime ); |
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143 } |
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144 |
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145 if( physicsStarted ) |
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146 { |
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147 aEventsBlocked = ETrue; |
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148 } |
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149 else |
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150 { |
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151 aEventsBlocked = EFalse; |
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152 } |
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153 } |
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154 |
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155 // Record previous pointer event |
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156 iPreviousPointerEvent = aPointerEvent; |
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157 |
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158 return physicsStarted; |
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159 } |
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160 |
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161 // --------------------------------------------------------------------------- |
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162 // CMRListPanePhysics::InitPhysicsL |
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163 // --------------------------------------------------------------------------- |
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164 // |
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165 void CMRListPanePhysics::InitPhysics() |
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166 { |
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167 FUNC_LOG; |
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168 if ( !iFeatureEnabled ) |
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169 { |
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170 return; |
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171 } |
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172 TRect parentRect( iParent.Rect() ); |
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173 |
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174 iWorldSize.iHeight = iViewControl.MinimumSize().iHeight; |
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175 iWorldSize.iWidth = iViewControl.MinimumSize().iWidth; |
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176 |
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177 iViewSize.iHeight = parentRect.Height(); |
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178 iViewSize.iWidth = parentRect.Width(); |
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179 |
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180 if( iWorldSize.iHeight < iViewSize.iHeight ) |
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181 { |
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182 iWorldSize.iHeight = iViewSize.iHeight; |
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183 } |
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184 |
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185 |
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186 |
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187 iPhysics->ResetFriction(); |
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188 |
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189 TRAP_IGNORE( iPhysics->InitPhysicsL( iWorldSize, iViewSize, EFalse ) ); |
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190 iPhysics->UpdateViewWindowControl( &iParent ); |
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191 } |
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192 |
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193 // --------------------------------------------------------------------------- |
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194 // CMRListPanePhysics::SetWorldHeight |
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195 // --------------------------------------------------------------------------- |
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196 // |
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197 void CMRListPanePhysics::SetWorldHeight( TInt aWorldHeight ) |
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198 { |
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199 FUNC_LOG; |
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200 if ( !iFeatureEnabled ) |
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201 { |
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202 return; |
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203 } |
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204 iWorldSize.iHeight = aWorldHeight; |
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205 } |
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206 |
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207 // --------------------------------------------------------------------------- |
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208 // CMRListPanePhysics::ViewPositionChanged |
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209 // --------------------------------------------------------------------------- |
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210 // |
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211 void CMRListPanePhysics::ViewPositionChanged( const TPoint& aNewPosition, |
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212 TBool aDrawNow, |
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213 TUint /*aFlags*/ ) |
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214 { |
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215 FUNC_LOG; |
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216 if ( !iFeatureEnabled ) |
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217 { |
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218 return; |
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219 } |
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220 if ( iPhysics->OngoingPhysicsAction() == |
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221 CAknPhysics::EAknPhysicsActionBouncing ) |
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222 { |
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223 return; |
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224 } |
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225 |
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226 iVerScrollIndex = aNewPosition.iY - iViewSize.iHeight / 2; |
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227 |
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228 // Parents position is taken into account, by |
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229 // adding the extra x and y coordinates to field containers |
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230 // new position. |
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231 TPoint pos( |
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232 iParent.Position().iX, |
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233 -iVerScrollIndex + iParent.Position().iY ); |
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234 iViewControl.ScrollContainer( pos ); |
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235 |
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236 // Draw only when drawing is allowed |
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237 if ( aDrawNow ) |
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238 { |
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239 iParent.DrawNow(); |
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240 } |
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241 |
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242 // Vertical scroll index has changed, we need to update scroll bar also |
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243 iPhysicsObserver.UpdateScrollBarDuringOngoingPhysics(); |
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244 } |
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245 |
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246 // --------------------------------------------------------------------------- |
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247 // CMRListPanePhysics::PhysicEmulationEnded |
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248 // --------------------------------------------------------------------------- |
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249 // |
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250 void CMRListPanePhysics::PhysicEmulationEnded() |
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251 { |
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252 FUNC_LOG; |
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253 iPhysicsObserver.PhysicsEmulationEnded(); |
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254 |
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255 // Synchronize field container position |
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256 iViewControl.Synchronize(); |
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257 } |
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258 |
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259 // --------------------------------------------------------------------------- |
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260 // CMRListPanePhysics::ViewPosition |
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261 // --------------------------------------------------------------------------- |
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262 // |
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263 TPoint CMRListPanePhysics::ViewPosition() const |
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264 { |
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265 FUNC_LOG; |
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266 if ( !iFeatureEnabled ) |
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267 { |
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268 return TPoint( iParent.Position() ); |
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269 } |
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270 |
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271 // This is the default implementation |
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272 TPoint viewPosition( |
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273 iViewSize.iWidth / 2, |
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274 iViewSize.iHeight / 2 + iVerScrollIndex ); |
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275 |
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276 return viewPosition; |
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277 } |
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278 |
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279 // --------------------------------------------------------------------------- |
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280 // CMRListPanePhysics::UpdateVerticalScrollIndex |
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281 // --------------------------------------------------------------------------- |
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282 // |
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283 void CMRListPanePhysics::UpdateVerticalScrollIndex( TInt aVerScrollIndex ) |
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284 { |
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285 FUNC_LOG; |
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286 if ( iFeatureEnabled ) |
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287 { |
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288 // Physics' new position is updated to this member, when field |
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289 // container is scrolled by someone else than physics. |
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290 iVerScrollIndex = aVerScrollIndex; |
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291 } |
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292 } |
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293 |
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294 // --------------------------------------------------------------------------- |
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295 // CMRListPanePhysics::VerticalScrollIndex |
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296 // --------------------------------------------------------------------------- |
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297 // |
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298 TInt CMRListPanePhysics::VerticalScrollIndex() |
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299 { |
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300 return iVerScrollIndex; |
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301 } |
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302 // End of file |
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303 |