/*

* Copyright (c) 2005 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:  

*           Messaging Image Info class.

*

*/

// ========== INCLUDE FILES ================================

#include <e32std.h>

#include <imageconversion.h> // CImageDecoder

#include <icl/imagedata.h>   // TFrameInfo

#include "MsgImageInfo.h"

#include "MsgMediaInfo.h"

#include "MsgMedia.hrh"

// ========== EXTERNAL DATA STRUCTURES =====================

// ========== EXTERNAL FUNCTION PROTOTYPES =================

// ========== CONSTANTS ====================================

// ========== MACROS =======================================

// ========== LOCAL CONSTANTS AND MACROS ===================

// ========== MODULE DATA STRUCTURES =======================

// ========== LOCAL FUNCTION PROTOTYPES ====================

// ========== LOCAL FUNCTIONS ==============================

// ========== MEMBER FUNCTIONS =============================

// ---------------------------------------------------------

// CMsgImageInfo::NewL

//

// Factory method.

// ---------------------------------------------------------

//

EXPORT_C CMsgImageInfo* CMsgImageInfo::NewL( RFile& aFile, TDataType& aMimeType )

    {

    CMsgImageInfo* self = new ( ELeave ) CMsgImageInfo( aMimeType );

    CleanupStack::PushL( self );

    self->ConstructL( aFile );

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------

// CMsgImageInfo::CMsgImageInfo

//

// Constructor.

// ---------------------------------------------------------

//

CMsgImageInfo::CMsgImageInfo( TDataType& aMimeType ) :

    CMsgMediaInfo( aMimeType, EMsgMediaImage ),

    iDelay( 0 ),

    iFrames( 0 ),

    iBitsPerPixel( 0 ),

    iOverallSizeInPixels( 0, 0 ),

    iFrameFlags( 0 )

    {

    }

// ---------------------------------------------------------

// CMsgImageInfo::CMsgImageInfo

//

// Destructor.

// ---------------------------------------------------------

//

CMsgImageInfo::~CMsgImageInfo()

    {

    }

// ---------------------------------------------------------

// CMsgImageInfo::ConstructL

//

// 2nd phase constructor.

// ---------------------------------------------------------

//

void CMsgImageInfo::ConstructL( RFile& aFile )

    {

    CMsgMediaInfo::ConstructL( aFile );

    }

// -----------------------------------------------------------------------------

// CMsgImageInfo::DoCancel

// 

// -----------------------------------------------------------------------------

//

void CMsgImageInfo::DoCancel()

    {

    CMsgMediaInfo::DoCancel();

    }

// -----------------------------------------------------------------------------

// CMsgImageInfo::RunL

// 

// -----------------------------------------------------------------------------

//

void CMsgImageInfo::RunL()

    {

    iParseError = iStatus.Int();

    if ( !iParseError )

        {

        FreezeRights();

        ResolveImageInfoL( iFile );

        iParsed = ETrue;

        }

    CompleteObserver();

    }

// ---------------------------------------------------------

// CMsgImageInfo::ResolveImageInfoL

//

// ---------------------------------------------------------

//

void CMsgImageInfo::ResolveImageInfoL( RFile& aFile )

    {

    CImageDecoder* imageDecoder

        = CImageDecoder::FileNewL( aFile, ContentAccess::EPeek );

    // If we survive from this we have legal imagefile. Thus no need to further checking.

    // Information of first (or only) frame

    TFrameInfo frameInfo = imageDecoder->FrameInfo();

    iFrames = imageDecoder->FrameCount();

    iBitsPerPixel = frameInfo.iBitsPerPixel;

    iOverallSizeInPixels = frameInfo.iOverallSizeInPixels;

    //iFrameFlags = frameInfo.iFlags;

    if ( frameInfo.iFlags & TFrameInfo::EFullyScaleable )

        {

        iFrameFlags |= EFullyScalable;

        }

    if ( frameInfo.iFlags & TFrameInfo::ETransparencyPossible )

        {

        iFrameFlags |= ETransparent;

        }

    if ( iFrames > 1 )

        {

        iDelay = I64INT( frameInfo.iDelay.Int64() / 1000 );

        for ( TInt frame = 0;  frame < iFrames ; frame++ )

            {

            frameInfo = imageDecoder->FrameInfo( frame );

            TInt delay = I64INT( frameInfo.iDelay.Int64() / 1000 );

            iDuration += delay;

            }

        }

    else

        {

        iDelay = 0;

        iDuration = 0;

        }

    delete imageDecoder;

    }