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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: MR listpane physics impl
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*
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*/
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#include "cmrlistpanephysics.h"
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#include "cmrlistpane.h"
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#include "nmrlayoutmanager.h"
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#include "cmrfieldcontainer.h"
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#include <aknphysics.h>
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//DEBUG
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#include "emailtrace.h"
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::CMRListPanePhysics
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// ---------------------------------------------------------------------------
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//
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CMRListPanePhysics::CMRListPanePhysics(
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CCoeControl& aParent,
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CMRFieldContainer& aViewControl,
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MMRPhysicsObserver& aPhysicsObserver )
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: iParent( aParent ),
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iViewControl( aViewControl ),
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iPhysicsObserver( aPhysicsObserver )
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{
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FUNC_LOG;
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CMRListPanePhysics::ConstructL()
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{
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FUNC_LOG;
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iFeatureEnabled = CAknPhysics::FeatureEnabled();
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if ( iFeatureEnabled )
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{
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// Physics: Create physics
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// Give pointer to control that should be able to flick/drag
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iPhysics = CAknPhysics::NewL( *this, &iViewControl );
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}
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::NewL
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// ---------------------------------------------------------------------------
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//
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CMRListPanePhysics* CMRListPanePhysics::NewL(
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CCoeControl& aParent,
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CMRFieldContainer& aViewControl,
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MMRPhysicsObserver& aPhysicsObserver )
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{
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FUNC_LOG;
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CMRListPanePhysics* self =
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new ( ELeave ) CMRListPanePhysics(
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aParent,
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aViewControl,
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aPhysicsObserver );
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CleanupStack::PushL( self );
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self->ConstructL();
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CleanupStack::Pop( self );
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return self;
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::~CMRListPanePhysics
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// ---------------------------------------------------------------------------
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//
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CMRListPanePhysics::~CMRListPanePhysics()
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{
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FUNC_LOG;
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delete iPhysics;
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::HandlePointerEventL
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// ---------------------------------------------------------------------------
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//
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TBool CMRListPanePhysics::HandlePointerEventL(
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const TPointerEvent& aPointerEvent, TBool& aEventsBlocked )
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{
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FUNC_LOG;
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TBool physicsStarted( EFalse );
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if ( !iFeatureEnabled || iPhysics->OngoingPhysicsAction() ==
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CAknPhysics::EAknPhysicsActionBouncing )
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{
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return physicsStarted;
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}
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// Down
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if ( aPointerEvent.iType == TPointerEvent::EButton1Down )
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{
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if ( iPhysics->OngoingPhysicsAction()
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!= CAknPhysics::EAknPhysicsActionNone )
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{
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iPhysics->StopPhysics();
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}
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// Save start time and start point
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iStartTime.HomeTime();
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iStartPoint = aPointerEvent.iPosition;
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iDragPoint = iStartPoint;
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}
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// Drag
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else if ( aPointerEvent.iType == TPointerEvent::EDrag )
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{
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// Check how position was changed and report to physics
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TPoint deltaPoint( iDragPoint - aPointerEvent.iPosition );
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if( Abs( deltaPoint.iY ) > iPhysics->DragThreshold() )
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{
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iDragPoint = aPointerEvent.iPosition;
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iPhysics->RegisterPanningPosition( deltaPoint );
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}
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}
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// Up
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else if ( aPointerEvent.iType == TPointerEvent::EButton1Up )
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{
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// Calculate dragging distance
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TPoint drag( iStartPoint - aPointerEvent.iPosition );
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if( Abs( drag.iY ) > iPhysics->DragThreshold() )
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{
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// Start physics
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physicsStarted = iPhysics->StartPhysics( drag, iStartTime );
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}
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if( physicsStarted )
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{
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aEventsBlocked = ETrue;
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}
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else
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{
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aEventsBlocked = EFalse;
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}
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}
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// Record previous pointer event
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iPreviousPointerEvent = aPointerEvent;
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return physicsStarted;
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::InitPhysicsL
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// ---------------------------------------------------------------------------
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//
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void CMRListPanePhysics::InitPhysics()
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{
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FUNC_LOG;
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if ( !iFeatureEnabled )
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{
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return;
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}
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TRect parentRect( iParent.Rect() );
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iWorldSize.iHeight = iViewControl.MinimumSize().iHeight;
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iWorldSize.iWidth = iViewControl.MinimumSize().iWidth;
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iViewSize.iHeight = parentRect.Height();
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iViewSize.iWidth = parentRect.Width();
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if( iWorldSize.iHeight < iViewSize.iHeight )
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{
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iWorldSize.iHeight = iViewSize.iHeight;
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}
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iPhysics->ResetFriction();
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TRAP_IGNORE( iPhysics->InitPhysicsL( iWorldSize, iViewSize, EFalse ) );
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iPhysics->UpdateViewWindowControl( &iParent );
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::SetWorldHeight
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// ---------------------------------------------------------------------------
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//
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void CMRListPanePhysics::SetWorldHeight( TInt aWorldHeight )
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{
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FUNC_LOG;
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if ( !iFeatureEnabled )
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{
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return;
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}
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iWorldSize.iHeight = aWorldHeight;
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::ViewPositionChanged
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// ---------------------------------------------------------------------------
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//
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void CMRListPanePhysics::ViewPositionChanged( const TPoint& aNewPosition,
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TBool aDrawNow,
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TUint /*aFlags*/ )
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{
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FUNC_LOG;
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if ( !iFeatureEnabled )
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{
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return;
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}
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if ( iPhysics->OngoingPhysicsAction() ==
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CAknPhysics::EAknPhysicsActionBouncing )
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{
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return;
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}
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iVerScrollIndex = aNewPosition.iY - iViewSize.iHeight / 2;
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// Parents position is taken into account, by
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// adding the extra x and y coordinates to field containers
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// new position.
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TPoint pos(
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iParent.Position().iX,
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-iVerScrollIndex + iParent.Position().iY );
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iViewControl.ScrollContainer( pos );
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// Draw only when drawing is allowed
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if ( aDrawNow )
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{
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iParent.DrawNow();
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}
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// Vertical scroll index has changed, we need to update scroll bar also
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iPhysicsObserver.UpdateScrollBarDuringOngoingPhysics();
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::PhysicEmulationEnded
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// ---------------------------------------------------------------------------
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//
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void CMRListPanePhysics::PhysicEmulationEnded()
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{
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FUNC_LOG;
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iPhysicsObserver.PhysicsEmulationEnded();
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// Synchronize field container position
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iViewControl.Synchronize();
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::ViewPosition
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// ---------------------------------------------------------------------------
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//
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TPoint CMRListPanePhysics::ViewPosition() const
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{
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FUNC_LOG;
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if ( !iFeatureEnabled )
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{
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return TPoint( iParent.Position() );
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}
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// This is the default implementation
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TPoint viewPosition(
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iViewSize.iWidth / 2,
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iViewSize.iHeight / 2 + iVerScrollIndex );
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return viewPosition;
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::UpdateVerticalScrollIndex
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// ---------------------------------------------------------------------------
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//
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void CMRListPanePhysics::UpdateVerticalScrollIndex( TInt aVerScrollIndex )
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{
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FUNC_LOG;
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if ( iFeatureEnabled )
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{
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// Physics' new position is updated to this member, when field
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// container is scrolled by someone else than physics.
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iVerScrollIndex = aVerScrollIndex;
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}
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}
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// ---------------------------------------------------------------------------
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// CMRListPanePhysics::VerticalScrollIndex
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// ---------------------------------------------------------------------------
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//
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TInt CMRListPanePhysics::VerticalScrollIndex()
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{
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return iVerScrollIndex;
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}
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// End of file
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