/*

* Copyright (c) 2006 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:     Stores a single slide

*

*/

//  INCLUDES

#include "SlideshowSlide.h"

#include "SlideshowSlideLoader.h"

#include "SlideshowPluginUtils.h"

// Creator

CSlideshowSlide* CSlideshowSlide::NewL(TDesC& aFileName, TBool aIsOnMC)

    {

    CSlideshowSlide* self = new (ELeave) CSlideshowSlide(aIsOnMC);

    CleanupStack::PushL(self);

    self->ConstructL(aFileName);

    CleanupStack::Pop(self);

    return self;

    }

// Destructor

CSlideshowSlide::~CSlideshowSlide()

    {

    ReleaseImage();

    delete iSlideLoader;

    delete iFileName;

    }

// Default C'tor

CSlideshowSlide::CSlideshowSlide(TBool aIsOnMC)

    : iFlags(SSS_NONE)

    {

    if (aIsOnMC)

        {

        iFlags |= SSS_ISONMC;

        }

    }

// is decoding in progress

TBool CSlideshowSlide::IsDecodingInProgress()

	{

	if(iSlideLoader->IsActive())

		{

		return ETrue;

		}

	return EFalse;

	}

// Could not decode the file

TBool CSlideshowSlide::CouldNotDecodeFile()

	{

	if (iFlags & SSS_DECODEFAILED)

        {

        return ETrue;

        }

	return EFalse;

	}

// Two-phase constructor

void CSlideshowSlide::ConstructL(TDesC& aFileName)

    {

    // Allocate space for the filename and save it

    iFileName = HBufC::NewL(aFileName.Length());

    *iFileName = aFileName;

    iSlideLoader = CSlideshowSlideLoader::NewL(this);

    }

// Prepares the slide (loads image)

void CSlideshowSlide::PrepareSlideL(const TSize& aTargetSize)

    {

   	if (iFlags & SSS_IMAGELOADED)

      {

      	  return;

      }

    if( iSlideLoader->IsActive())

    	{

    	// slide is being decoded ... should wait .. dont call LoadSlideL here

    	// should not come here..

    	return;

    	}

    iSlideLoader->LoadSlideL(*iFileName, aTargetSize);

    }

// Is slide decoded completely

TBool CSlideshowSlide::IsSlideDecoded()

	{

	if (iFlags & SSS_IMAGELOADED)

        {

        return ETrue;

        }

	return EFalse;

	}

// Releases the slide's image

void CSlideshowSlide::ReleaseImage()

    {

    // if decoding is in progress... at any cost dont delete the image before Canceling the decoding

    if(IsDecodingInProgress())

    	{

    	iSlideLoader->Cancel();

    	}

    else if(iImage )

    	{

    	delete iImage;

    	iImage = NULL;

    	}

    //image deleted, revert back to not decoded state

    iFlags &= ~(SSS_IMAGELOADED);

    }

//  End of File