uifw/EikStd/coctlsrc/aknedwinphysicshandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:00:49 +0200
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permissions -rw-r--r--
Revision: 201003 Kit: 201005
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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:  EikEdwin physics handler
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 *
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 */
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#include <aknphysics.h>
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#include <aknphysicsobserveriface.h>
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#include <babitflags.h>
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#include "eikedwin.h"
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#include "aknedwinphysicshandler.h"
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const TInt KMaxWorldSize( 100000000 );  // Maximum world size
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::NewL
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// ---------------------------------------------------------------------------
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//
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CAknEdwinPhysicsHandler* CAknEdwinPhysicsHandler::NewL( CEikEdwin& aEdwin )
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    {
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    CAknEdwinPhysicsHandler* self = CAknEdwinPhysicsHandler::NewLC( aEdwin );
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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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// CAknEdwinPhysicsHandler::NewLC
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// ---------------------------------------------------------------------------
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//
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CAknEdwinPhysicsHandler* CAknEdwinPhysicsHandler::NewLC( CEikEdwin& aEdwin )
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    {
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    CAknEdwinPhysicsHandler* self = new ( ELeave ) CAknEdwinPhysicsHandler(
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            aEdwin );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::~CAknEdwinPhysicsHandler
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// ---------------------------------------------------------------------------
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//
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CAknEdwinPhysicsHandler::~CAknEdwinPhysicsHandler()
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    {
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    delete iPhysics;
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::HandlePointerEvent
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// ---------------------------------------------------------------------------
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//
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void CAknEdwinPhysicsHandler::HandlePointerEvent(
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    const TPointerEvent& aPointerEvent )
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    {   
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    if ( aPointerEvent.iType == TPointerEvent::EButton1Down &&
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        iViewRect.Contains( aPointerEvent.iPosition ) &&
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        iEventUnblockingAllowed )
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        {
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        BlockEvents( EFalse );
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        iPreviousYCoordinate = - KMaxWorldSize;
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        }
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    if ( iEventsBlocked )
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        {
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	    return;
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        }
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    // Dragging/flicking logic    
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    if ( aPointerEvent.iType == TPointerEvent::EButton1Down &&
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        iViewRect.Contains( aPointerEvent.iPosition ) )
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        {
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        // Pointer down inside view rect, set flag to allow dragging 
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        // and initialize values
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        iFlags.Set( EFlagDraggingAllowed );
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        iPrevPosition = aPointerEvent.iPosition;
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        iStartPosition = aPointerEvent.iPosition;
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        StopPhysics();
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        iStartTime.HomeTime();
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        iDragThresholdExceeded = EFalse;
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        iFlags.Clear( EFlagBouncingUp );
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        iFlags.Clear( EFlagBouncingDown );
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        return;
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        }
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    if ( iFlags.IsClear( EFlagDraggingAllowed ) )
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        {
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        return;
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        }
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    if ( aPointerEvent.iType == TPointerEvent::EDrag )
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        {
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        if ( !iDragThresholdExceeded )
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            {
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            TInt drag( iStartPosition.iY - aPointerEvent.iPosition.iY );
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            if ( Abs( drag ) > DragThreshold() )
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                {
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                iDragThresholdExceeded = ETrue;
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                }
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            }
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        if ( iDragThresholdExceeded )
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            {
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            TInt deltaY( iPrevPosition.iY - aPointerEvent.iPosition.iY );
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            iPrevPosition = aPointerEvent.iPosition;
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            TPoint deltaPoint( 0, deltaY );
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            iPhysics->RegisterPanningPosition( deltaPoint );
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            }
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        }
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    else if ( aPointerEvent.iType == TPointerEvent::EButton1Up )
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        {
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        iFlags.Clear( EFlagDraggingAllowed );
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        TPoint drag( 0, iStartPosition.iY - aPointerEvent.iPosition.iY );
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        iPhysics->StartPhysics( drag, iStartTime );
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        }
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::SetViewRect
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// ---------------------------------------------------------------------------
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//
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void CAknEdwinPhysicsHandler::SetViewRect( const TRect& aRect )
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    {
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    iViewRect = aRect;
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::InitPhysicsL
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// ---------------------------------------------------------------------------
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//   
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void CAknEdwinPhysicsHandler::InitPhysicsL()
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    {
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    TSize totalSize( iViewRect.Width(), iViewRect.Height() + KMaxWorldSize );
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    TSize viewSize( iViewRect.Width(), iViewRect.Height() );
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    iPhysics->InitPhysicsL( totalSize, viewSize, EFalse );
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::MoveScrollIndex
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// ---------------------------------------------------------------------------
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//     
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void CAknEdwinPhysicsHandler::MoveScrollIndex( TInt aPixelsToMove )
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    {
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    // This is called when user moves content using scrollbar
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    // Do nothing if handler itself is updating the view
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    if ( iFlags.IsSet( EFlagUpdatingView ) )
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        {
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        return;
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        }
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    iWorldIndex += aPixelsToMove;
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    ScrollView( EFalse );
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::EmulationOngoing
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// ---------------------------------------------------------------------------
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//     
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TBool CAknEdwinPhysicsHandler::EmulationOngoing()
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    {
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    return IsFlicking() || IsBouncing();
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::DragThreshold
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// ---------------------------------------------------------------------------
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//     
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TInt CAknEdwinPhysicsHandler::DragThreshold() const
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    {
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    return iPhysics->DragThreshold();
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::ViewPositionChanged
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// ---------------------------------------------------------------------------
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//
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void CAknEdwinPhysicsHandler::ViewPositionChanged( const TPoint& aNewPosition,
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        TBool /*aDrawNow*/, TUint /*aFlags*/)
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    {        
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    // Skip equal sequential values.
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    if ( aNewPosition.iY == iPreviousYCoordinate )
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        {
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        return;
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   201
        }
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    iPreviousYCoordinate = aNewPosition.iY;
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    TInt y( 0 );
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    if ( iFlags.IsSet( EFlagBouncingDown ) )
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        {
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        // We are at the beginning of world
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        y = aNewPosition.iY + iBounceDownIndex;
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        }
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    else if ( iFlags.IsSet( EFlagBouncingUp ) )
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        {
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        // We are at the end of world
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        y = aNewPosition.iY + iBounceUpIndex - KMaxWorldSize;
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        }
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    else
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        {
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        // We are at the middle of world
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        y = aNewPosition.iY - KMaxWorldSize / 2;
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        }
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   220
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    iWorldIndex = y - iViewRect.Height() / 2;
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   222
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    // If bounce is ongoing, block all pointer events.
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    if ( IsBouncing() )
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        {
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        BlockEvents( ETrue );
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        }
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    // Scroll view based on values from aknphysics
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    ScrollView( ETrue );
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::PhysicEmulationEnded
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// ---------------------------------------------------------------------------
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//    
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void CAknEdwinPhysicsHandler::PhysicEmulationEnded()
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    {
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    TInt offset = iEdwin.PixelsOutOfBorder();
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    if ( offset != 0 )
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        {
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        // If physics emulation ends and view position is not moved
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        // back to original position (to position where bounce started)
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        // we adjust it here. This is because aknphysics won't return
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        // always to original position.
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        TPoint newPosition( 0, iPreviousYCoordinate + offset );
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        ViewPositionChanged( newPosition, ETrue, 0 );
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        }
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    // Enable pointer events when next pointer down received
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    iEventUnblockingAllowed = ETrue;
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    // Show cursor again if needed   
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    iEdwin.RestoreCursorState();
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::ViewPosition
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// ---------------------------------------------------------------------------
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//    
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TPoint CAknEdwinPhysicsHandler::ViewPosition() const
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    {
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    // Aknphysics calls this function to get current view position.
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    // We adjust the position based on information if we
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    // are are bouncing up or down (in other words we
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    // have exceeded end- or beginning of real editor content).
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    // In these situations we adjust returned value so that
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    // from aknphysic's point of view we seem to be at the beginning
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    // or end of almost infinite large world. If we have not exceeded
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    // borders of editor content, we are at the middle of this world.
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    // So, when we are at the middle of this almost infinite large world,
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    // we can in practice add and remove content to editor
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    // and we must not tell correct position to aknphysics (we also can't because
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    // it seems to be impossible to calculate excatly correct position and size
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    // of world if we haven't formatted yet the whole editor content).  
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    TInt y( 0 );
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    if ( iFlags.IsClear( EFlagBouncingDown )
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            && iFlags.IsClear( EFlagBouncingUp ) )
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        {
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        // We are at the middle of world
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        y = iWorldIndex + KMaxWorldSize / 2;
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        }
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    else if ( iFlags.IsSet( EFlagBouncingDown ) )
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        {
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        // We are at the beginning of world
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        y = iWorldIndex - iBounceDownIndex;
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        }
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    else if ( iFlags.IsSet( EFlagBouncingUp ) )
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        {
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        // We are at the end of world
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        y = iWorldIndex - iBounceUpIndex +  KMaxWorldSize;
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        }
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    return TPoint( iViewRect.Width() / 2, y + iViewRect.Height() / 2 );
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::CAknEdwinPhysicsHandler
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// ---------------------------------------------------------------------------
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//
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CAknEdwinPhysicsHandler::CAknEdwinPhysicsHandler( CEikEdwin& aEdwin ) :
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    iWorldIndex( 0 ),
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    iPreviousWorldIndex( 0 ),
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    iPhysics( NULL ),
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    iEdwin( aEdwin )
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    {
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CAknEdwinPhysicsHandler::ConstructL()
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    {
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    iPhysics = CAknPhysics::NewL( *this, &iEdwin );    
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    }
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// ---------------------------------------------------------------------------
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// CAknEdwinPhysicsHandler::ScrollView
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// ---------------------------------------------------------------------------
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//     
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void CAknEdwinPhysicsHandler::ScrollView( TBool aAllowBounce )
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    {
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    iFlags.Set( EFlagUpdatingView );
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    if ( iPreviousWorldIndex != iWorldIndex )
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        {
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        // Calculate amount of pixels to scroll based on previous position
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        TInt pixelsToScroll( iPreviousWorldIndex - iWorldIndex );
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        if ( pixelsToScroll != 0 )
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            {
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   333
            if ( iFlags.IsSet( EFlagBouncingDown ) ||
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                    iFlags.IsSet( EFlagBouncingUp ) )
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                {
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                // Bounce ongoing, use function that supports scrolling
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                // over the content borders (there can be empty space above or
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                // below the editor content)
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                TInt restOfPixels( 0 );
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                ScrollStepWithBounce( pixelsToScroll, restOfPixels );
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   341
                
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
                // If restOfPixels is not zero, we were bouncing back
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
                // and exceeded the border again. In this situation
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
                // we must scroll rest of pixels using function
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
                // that stops if we again exceed the border. This is needed
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
                // because we need to know if we exceed the border again
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
                // (for example if length of content is short) to adjust
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
                // position on aknphysics world correctly.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
                if ( restOfPixels != 0)
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
                    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
                    ScrollStep( pixelsToScroll, ETrue );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
                    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
                }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
            else
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
                {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
                // Bounce not ongoing, use function that stops if we exceed the border
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
                ScrollStep( pixelsToScroll, aAllowBounce );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
                }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
    iFlags.Clear( EFlagUpdatingView );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
// CAknEdwinPhysicsHandler::ScrollStep
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
//   
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
void CAknEdwinPhysicsHandler::ScrollStep( TInt aPixelsToScroll,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
    TBool aAllowBounce )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
    TInt restOfPixels( 0 );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
    TBool borderExceeded( EFalse );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
    TInt scrolledPixels = iEdwin.ScrollView( aPixelsToScroll, borderExceeded,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
        restOfPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
           
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
    if ( borderExceeded && aAllowBounce )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        if ( aPixelsToScroll != 0 )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
            MoveWorldIndex( scrolledPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
            
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
            if ( IsFlicking() )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
                {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
                // Flicking is ongoing and end of content is arrived.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
                // In this situation we stop physics, adjust the view position in the
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
                // aknphysics (in function ViewPosition) and restart physics with
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
                // current force and velocity.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
                
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
                iPhysics->SuspendPhysics();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
                InitBounce( aPixelsToScroll > 0 );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
                iPhysics->ResumePhysics();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
                }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
            else
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
                {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
                InitBounce( aPixelsToScroll > 0 );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
                ScrollRestOfPixels( restOfPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
                }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
        return;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
    MoveWorldIndex( scrolledPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
// CAknEdwinPhysicsHandler::ScrollStepWithBounce
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
// 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
void CAknEdwinPhysicsHandler::ScrollStepWithBounce( TInt aPixelsToScroll,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
    TInt& aRestOfPixels )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
    TBool endOfBounce( EFalse );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
    TInt scrolledPixels = iEdwin.ScrollViewWithBounce(
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
        aPixelsToScroll, endOfBounce, aRestOfPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
    MoveWorldIndex( scrolledPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
    if ( endOfBounce )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
        iFlags.Clear( EFlagBouncingDown );  
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
        iFlags.Clear( EFlagBouncingUp );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
// CAknEdwinPhysicsHandler::MoveWorldIndex
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
void CAknEdwinPhysicsHandler::MoveWorldIndex( TInt aDelta )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
    iWorldIndex = iPreviousWorldIndex - aDelta;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
    iPreviousWorldIndex = iWorldIndex;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
// CAknEdwinPhysicsHandler::ScrollRestOfPixels
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
void CAknEdwinPhysicsHandler::ScrollRestOfPixels( TInt aRestOfPixels )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
    // Scroll rest of pixels
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
    TBool endOfBounce;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
    TInt restOfPixels( 0 );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
    TInt scrolledPixels = iEdwin.ScrollViewWithBounce( aRestOfPixels,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
            endOfBounce, restOfPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
    MoveWorldIndex( scrolledPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
// CAknEdwinPhysicsHandler::StopPhysics
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
void CAknEdwinPhysicsHandler::StopPhysics()
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
    iPhysics->StopPhysics();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
    iPhysics->ResetFriction();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
// CAknEdwinPhysicsHandler::BlockEvents
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
void CAknEdwinPhysicsHandler::BlockEvents( TBool aBlocked )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
    iEventsBlocked = aBlocked;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
    iEventUnblockingAllowed = EFalse;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
// CAknEdwinPhysicsHandler::IsFlicking
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
TBool CAknEdwinPhysicsHandler::IsFlicking() const
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
    return iPhysics->OngoingPhysicsAction()
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
            == CAknPhysics::EAknPhysicsActionFlicking;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
// CAknEdwinPhysicsHandler::IsBouncing
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
TBool CAknEdwinPhysicsHandler::IsBouncing() const
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
    return iPhysics->OngoingPhysicsAction()
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
            == CAknPhysics::EAknPhysicsActionBouncing;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
// CAknEdwinPhysicsHandler::InitBounce
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
void CAknEdwinPhysicsHandler::InitBounce( TBool aBouncingDown )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
    if ( aBouncingDown )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
        iFlags.Clear( EFlagBouncingUp );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
        iFlags.Set( EFlagBouncingDown );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
        iBounceDownIndex = iWorldIndex;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
    else
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
        iFlags.Set( EFlagBouncingUp );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
        iFlags.Clear( EFlagBouncingDown );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
        iBounceUpIndex = iWorldIndex;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
        }   
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
// CAknEdwinPhysicsHandler::InitKineticScrolling
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
void CAknEdwinPhysicsHandler::InitKineticScrolling(
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
    const TPoint& aStartPosition )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
    iSelectionStarted = EFalse;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
    iDraggingStarted = EFalse;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
    iStartPosition = aStartPosition;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
// CAknEdwinPhysicsHandler::HandleKineticScrolling
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
void CAknEdwinPhysicsHandler::HandleKineticScrolling(
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
    const TPointerEvent& aPointerEvent, TBool& aShouldReturn )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
    aShouldReturn = EFalse;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
    // If editor content is empty, it is not possible to drag,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
    // flick or select text and we return here. Other events
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
    // are passed because they are handled later.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
    if ( aPointerEvent.iType == TPointerEvent::EDrag
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
        && iEdwin.TextLength() == 0 )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
        aShouldReturn = ETrue;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
        return;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
    // If dragging or selection not started,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
    // check if it should be started
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
    if ( aPointerEvent.iType == TPointerEvent::EDrag && !iSelectionStarted
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
        && !iDraggingStarted )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
        // Get delta values for pointer movement
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
        TInt deltaX( aPointerEvent.iPosition.iX - iStartPosition.iX );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
        TInt deltaY( aPointerEvent.iPosition.iY - iStartPosition.iY );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
            
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
        // If drag threshold not exceeded, return.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
        if ( Abs( deltaX ) < DragThreshold()
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
            && Abs( deltaY ) < DragThreshold() )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
            HandlePointerEvent( aPointerEvent );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
            aShouldReturn = ETrue;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
            return;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
                  
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
        // If dragged horizontally more than vertically,
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
        // text selection started. Otherwise dragging started.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
        if ( Abs( deltaX ) > Abs( deltaY ) )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
            iSelectionStarted = ETrue;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
        else
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
            iDraggingStarted = ETrue;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
                
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
            // If cursor is visible, disable it and store
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
            // cursor visibility info when dragging starts.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
            iEdwin.StoreCursorState();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
    // Forward all events to physics handler, except:
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
    // If text selection started, don't forward drag and up events
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
    // because kinetic scrolling can't be used when selecting text.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
    // However, fast scrolling can be used when we are selecting text.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
    if ( !( iSelectionStarted &&
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
            ( aPointerEvent.iType == TPointerEvent::EDrag ||
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
                aPointerEvent.iType == TPointerEvent::EButton1Up ) ) )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
        HandlePointerEvent( aPointerEvent );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
    if ( aPointerEvent.iType == TPointerEvent::EButton1Up )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
        // If flick or bounce effect was started, check if there
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
        // is need to hide cursor.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
        // If flick or bounce was not started, show cursor again if needed.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
        if ( EmulationOngoing() )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
            iEdwin.StoreCursorState();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
        else
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
            iEdwin.RestoreCursorState();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
    // If selection not started, don't handle drag events but return
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
    // All other events must be handled anyway.
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
    if ( !iSelectionStarted && aPointerEvent.iType
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
            == TPointerEvent::EDrag )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   610
        aShouldReturn = ETrue;                     
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   611
        return;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   612
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   613
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   614
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   615
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   616
// CAknEdwinPhysicsHandler::SelectionStarted
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   617
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   618
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   619
TBool CAknEdwinPhysicsHandler::SelectionStarted() const
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   620
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   621
    return iSelectionStarted;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   622
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   623
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   624
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   625
// CAknEdwinPhysicsHandler::DraggingStarted
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   626
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   627
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   628
TBool CAknEdwinPhysicsHandler::DraggingStarted() const
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   629
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   630
    return iDraggingStarted;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   631
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   632
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   633
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   634
// CAknEdwinPhysicsHandler::DragThresholdExceeded
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   635
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   636
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   637
TBool CAknEdwinPhysicsHandler::DragThresholdExceeded(
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   638
    const TPoint& aCurrentPosition ) const
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   639
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   640
    // Get delta values for pointer movement
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   641
    TInt deltaX( aCurrentPosition.iX - iStartPosition.iX );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   642
    TInt deltaY( aCurrentPosition.iY - iStartPosition.iY );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   643
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   644
    if ( Abs( deltaX ) >= DragThreshold() || Abs( deltaY ) >= DragThreshold() )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   645
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   646
        return ETrue;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   647
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   648
    return EFalse;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   649
    }