1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:     Stores a single slide

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 

    22 //  INCLUDES

    23 #include "SlideshowSlide.h"

    24 #include "SlideshowSlideLoader.h"

    25 #include "SlideshowPluginUtils.h"

    26     

    27 // Creator

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

    29     {

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

    31     CleanupStack::PushL(self);

    32     self->ConstructL(aFileName);

    33     CleanupStack::Pop(self);

    34     return self;

    35     }

    36 

    37 // Destructor

    38 CSlideshowSlide::~CSlideshowSlide()

    39     {

    40     ReleaseImage();

    41     delete iSlideLoader;

    42     delete iFileName;

    43     }

    44 

    45 

    46 // Default C'tor

    47 CSlideshowSlide::CSlideshowSlide(TBool aIsOnMC)

    48     : iFlags(SSS_NONE)

    49     {

    50     if (aIsOnMC)

    51         {

    52         iFlags |= SSS_ISONMC;

    53         }

    54     }

    55 

    56 // is decoding in progress

    57 TBool CSlideshowSlide::IsDecodingInProgress()

    58 	{

    59 	if(iSlideLoader->IsActive())

    60 		{

    61 		return ETrue;

    62 		}

    63 	return EFalse;

    64 	}

    65 // Could not decode the file

    66 TBool CSlideshowSlide::CouldNotDecodeFile()

    67 	{

    68 	if (iFlags & SSS_DECODEFAILED)

    69         {

    70         return ETrue;

    71         }

    72 	return EFalse;

    73 	}

    74 // Two-phase constructor

    75 void CSlideshowSlide::ConstructL(TDesC& aFileName)

    76     {

    77     // Allocate space for the filename and save it

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

    79     *iFileName = aFileName;

    80     iSlideLoader = CSlideshowSlideLoader::NewL(this);

    81     }

    82 // Prepares the slide (loads image)

    83 void CSlideshowSlide::PrepareSlideL(const TSize& aTargetSize)

    84     {

    85    	if (iFlags & SSS_IMAGELOADED)

    86       {

    87       	  return;

    88       }

    89     if( iSlideLoader->IsActive())

    90     	{

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

    92     	// should not come here..

    93     	return;

    94     	}

    95     iSlideLoader->LoadSlideL(*iFileName, aTargetSize);

    96     }

    97 

    98 // Is slide decoded completely

    99 TBool CSlideshowSlide::IsSlideDecoded()

   100 	{

   101 	if (iFlags & SSS_IMAGELOADED)

   102         {

   103         return ETrue;

   104         }

   105 	return EFalse;

   106 	}

   107 // Releases the slide's image

   108 void CSlideshowSlide::ReleaseImage()

   109     {

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

   111     if(IsDecodingInProgress())

   112     	{

   113     	iSlideLoader->Cancel();

   114     	}

   115     else if(iImage )

   116     	{

   117     	delete iImage;

   118     	iImage = NULL;

   119     	}

   120     //image deleted, revert back to not decoded state

   121     iFlags &= ~(SSS_IMAGELOADED);

   122     }

   123 //  End of File