/*

* Copyright (c) 2002 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:  This class implements FramePositioningControl for animation

*

*/

//  INCLUDE FILES

#include <jdebug.h>

#include <e32base.h>

#include "MIHLImageViewer.h"

#include "cmmaanimationframepositioningcontrol.h"

CMMAAnimationFramePositioningControl*

CMMAAnimationFramePositioningControl::NewL(CMMAAnimationPlayer* aPlayer)

{

    CMMAAnimationFramePositioningControl* self =

        new(ELeave) CMMAAnimationFramePositioningControl(aPlayer);

    return self;

}

CMMAAnimationFramePositioningControl::

CMMAAnimationFramePositioningControl(CMMAAnimationPlayer* aPlayer)

        : CMMAFramePositioningControl(aPlayer), iPlayer(aPlayer)

{

    DEBUG("MMA:CMMAAnimationFramePositioningControl::CMMAAnimationFramePositioningControl");

}

CMMAAnimationFramePositioningControl::~CMMAAnimationFramePositioningControl()

{

    DEBUG("MMA:CMMAAnimationFramePositioningControl::~CMMAAnimationFramePositioningControl");

}

TInt CMMAAnimationFramePositioningControl::SeekL(TInt aFrameNumber)

{

    DEBUG("CMMAAnimationFramePositioningControl::SeekL");

    MIHLImageViewer* viewer = iPlayer->Viewer();

    if (!viewer)

    {

        return KErrNotFound;

    }

    TInt frameNumber = FindFrame(viewer, aFrameNumber);

    TInt64 mediaTime = iPlayer->MediaTimeForFrame(frameNumber);

    // adjust wanted media time to get right frame (equal value returns one too small)

    mediaTime++;

    iPlayer->SetMediaTimeL(&mediaTime);

    frameNumber = viewer->AnimationFrame();

    return frameNumber;

}

TInt CMMAAnimationFramePositioningControl::SkipL(TInt aFramesToSkip)

{

    DEBUG("CMMAAnimationFramePositioningControl::SkipL");

    MIHLImageViewer* viewer = iPlayer->Viewer();

    if (!viewer)

    {

        return KErrNotFound;

    }

    TInt frameNumber = viewer->AnimationFrame();

    SeekL(frameNumber + aFramesToSkip);

    // Calculate number of frames skipped

    return viewer->AnimationFrame() - frameNumber;

}

void CMMAAnimationFramePositioningControl::MapFrameToTimeL(

    TInt aFrameNumber,

    TInt64* aMediaTime)

{

    DEBUG("CMMAAnimationFramePositioningControl::MapFrameToTimeL");

    MIHLImageViewer* viewer = iPlayer->Viewer();

    if (!viewer || (aFrameNumber < 0) ||

            (aFrameNumber >= viewer->AnimationFrameCount()))

    {

        *aMediaTime = KErrNotFound;

    }

    else

    {

        *aMediaTime = iPlayer->MediaTimeForFrame(aFrameNumber);

    }

}

TInt CMMAAnimationFramePositioningControl::MapTimeToFrameL(

    TInt64* aMediaTime)

{

    DEBUG("CMMAAnimationFramePositioningControl::MapTimeToFrameL");

    MIHLImageViewer* viewer = iPlayer->Viewer();

    TInt64 duration;

    iPlayer->GetDuration(&duration);

    if (!viewer || (*aMediaTime < 0) ||

            (duration == KErrNotFound))

    {

        return KErrNotFound;

    }

    return iPlayer->FindFrame(*aMediaTime);

}

TInt CMMAAnimationFramePositioningControl::FindFrame(MIHLImageViewer* aViewer, TInt aFrameNumber)

{

    TInt frame = 0;

    TInt count = aViewer->AnimationFrameCount();

    if (aFrameNumber >= count)

    {

        frame = count - 1;

    }

    else if (aFrameNumber > 0)

    {

        frame = aFrameNumber;

    }

    return frame;

}

//  END OF FILE