/*

* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   THuiInteractionInterval is a utility class that can be used 

*                as specify intervals that adapt to user input.

*

*/

#include "uiacceltk/HuiInteractionInterval.h"  // Class definition

#include "uiacceltk/HuiStatic.h"

EXPORT_C THuiInteractionInterval::THuiInteractionInterval(TReal32 aScalar) __SOFTFP

        : iScalar(aScalar), iLastTimeMs(0)

    {

    }

EXPORT_C void THuiInteractionInterval::SetScalar(TReal32 aScalar) __SOFTFP

    {

    iScalar = aScalar;

    }

EXPORT_C TReal32 THuiInteractionInterval::Scalar() const __SOFTFP

    {

    return iScalar;

    }

EXPORT_C TInt THuiInteractionInterval::Interval(TInt aIntervalTime)

    {

    TUint32 now = CHuiStatic::MilliSecondsSinceStart();

    TUint32 elapsed = now - iLastTimeMs;

    if(iScalar * elapsed < aIntervalTime)

        {

        // The last movement is probably still going on.

        aIntervalTime = TInt(elapsed * iScalar);

        }

    iLastTimeMs = now;

    return aIntervalTime;

    }