/*

* 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:   Provides CUniEditorProcessImageOperation methods.

*

*/

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

#include <apmstd.h>

#include <icl/imagedata.h>

#include <centralrepository.h>

#include <messagingvariant.hrh>

#include <messaginginternalcrkeys.h> // for Central Repository keys

#include <MsgMediaResolver.h>

#include <MsgImageInfo.h>

#include <MmsConformance.h>

#include <MsgMimeTypes.h>

#include <uniimageprocessor.h>

#include <unimsventry.h>

#include <mmsvattachmentmanager.h>

#include <mmsvattachmentmanagersync.h>

#include <cmsvattachment.h>

#include <msgtextutils.h>

#include <mmssettingsdefs.h>

#include <mmsversion.h>

#include "UniClientMtm.h"

#include "UniEditorEnum.h"

#include "UniEditorDocument.h"

#include "UniEditorProcessImageOperation.h"

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

// Leave some space after compression so that text can be inserted to the 

// message.

const TInt KUniCompressionMargin = 10 * 1024; // 10 kB

const TInt KUniMmsUploadImageWidth = 1600;

const TInt KUniMmsUploadImageHeight = 1200;

_LIT8( KUniExtImageJpeg_8, ".jpg" );

_LIT8( KUniExtImageGif_8,  ".gif" );

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

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

// CUniEditorProcessImageOperation::NewL

//

// Factory method.

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

//

CUniEditorProcessImageOperation* CUniEditorProcessImageOperation::NewL( 

        MUniEditorOperationObserver& aObserver,

        CUniEditorDocument& aDocument,

        RFs& aFs )

    {

    CUniEditorProcessImageOperation* self = new ( ELeave ) CUniEditorProcessImageOperation(

            aObserver,

            aDocument,

            aFs );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CUniEditorProcessImageOperation::CUniEditorProcessImageOperation.

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

//

CUniEditorProcessImageOperation::CUniEditorProcessImageOperation(

        MUniEditorOperationObserver& aObserver,

        CUniEditorDocument& aDocument,

        RFs& aFs ) :

    CUniEditorOperation( aObserver, aDocument, aFs, EUniEditorOperationProcessImage ),

    {

    }

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

// CUniEditorProcessImageOperation::ConstructL

//

// 2nd phase constructor.

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

//

void CUniEditorProcessImageOperation::ConstructL()

    {

    BaseConstructL();

    TInt featureBitmask( 0 );

    CRepository* repository = CRepository::NewL( KCRUidMuiuVariation );

    repository->Get( KMuiuMmsFeatures, featureBitmask );

    iExactImageScaling = ( featureBitmask & KMmsFeatureIdExactImageScaling );

    delete repository;

    }

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

// CUniEditorProcessImageOperation::~CUniEditorProcessImageOperation

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

//

CUniEditorProcessImageOperation::~CUniEditorProcessImageOperation()

    {

    Cancel();

    delete iNewImageInfo;

    iNewImageFile.Close();

    delete iEditStore;

    delete iImageProcessor;

    }

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

// CUniEditorProcessImageOperation::Process

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

//

void CUniEditorProcessImageOperation::Process( CMsgImageInfo* aImageInfo,

                                               TMsvAttachmentId aAttachmentId,

                                               TInt aMessageSize )

    {

    ResetErrors();

    iImageInfo = aImageInfo;

    iAttachmentId = aAttachmentId;

    iMessageSize = aMessageSize;

    iOperationState = EUniProcessImgCheck;

    CompleteSelf( KErrNone );

    }

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

// CUniEditorProcessImageOperation::DetachAttachmentId

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

//

void CUniEditorProcessImageOperation::DetachAttachmentId( TMsvAttachmentId& aAttachmentId )

    {

    // iNewImageInfo may be already detached in DetachImageInfo

    aAttachmentId = iNewAttaId;

    iNewAttaId = KMsvNullIndexEntryId;

    }

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

// CUniEditorProcessImageOperation::RunL

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

//

void CUniEditorProcessImageOperation::RunL()

    {

    PrintOperationAndState();

    if ( iStatus.Int() != KErrNone )

        {

        SetError( iStatus.Int() );

        iOperationState = EUniProcessImgError;

        }

    switch ( iOperationState )

        {

        case EUniProcessImgCheck:

            {

            DoStartCheck();

            break;

            }

        case EUniProcessImgProcess:

            {

            DoStartProcessL();

            break;

            }

        case EUniProcessImgResolve:

            {

            DoStartResolveL();

            break;

            }

        case EUniProcessImgReady:

            {

            iObserver.EditorOperationEvent( EUniEditorOperationProcessImage,

                                            EUniEditorOperationComplete );

            break;

            }

        case EUniProcessImgError:

            {

            DoErrorWithoutStateChange();

            iObserver.EditorOperationEvent( EUniEditorOperationProcessImage,

                                            EUniEditorOperationError );

            break;

            }

        default:

            {

            iObserver.EditorOperationEvent( EUniEditorOperationProcessImage,

                                            EUniEditorOperationError );

            break;

            }

        }    

    }

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

// CUniEditorProcessImageOperation::DoCancelCleanup

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

//

void CUniEditorProcessImageOperation::DoCancelCleanup()

    {

    if ( iImageProcessor )

        {

        iImageProcessor->Cancel();

        }

    DoErrorWithoutStateChange();

    }

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

// CUniEditorProcessImageOperation::DoStartCheck

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

//

void CUniEditorProcessImageOperation::DoStartCheck()

    {

    if ( !CheckNeedToProcess() )

        {

        iOperationState = EUniProcessImgError;

        }

    else if ( iProcessMethod == EUniProcessImgMethodNone )

        {

        iOperationState = EUniProcessImgReady;

        }

    else

        {

        iOperationState = EUniProcessImgProcess;

        }

    CompleteSelf( KErrNone );

    }

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

// CUniEditorProcessImageOperation::DoStartProcessL

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

//

void CUniEditorProcessImageOperation::DoStartProcessL()

    {

    CreateEmptyAttachmentL();

    if ( !iImageProcessor )

        {

        iImageProcessor = new( ELeave )CUniImageProcessor( this );

        }

    RFile sourceFile = OpenFileForReadingL();

    CleanupClosePushL( sourceFile );

    iImageProcessor->ProcessImageL( sourceFile,

                                    iNewImageFile,

                                    iScaleSize,

                                    iTargetType.Des8(),

                                    ETrue, // Always maintain aspect ratio

                                    iDocument.MaxMessageSize() - KUniCompressionMargin );

    SetPending();

    CleanupStack::PopAndDestroy(); // sourceFile;

    }

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

// CUniEditorProcessImageOperation::DoStartResolveL

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

//

void CUniEditorProcessImageOperation::DoStartResolveL()

    {

    iNewImageInfo = static_cast<CMsgImageInfo*>(iDocument.DataModel()->MediaResolver().CreateMediaInfoL( iNewImageFile ) );

    iDocument.DataModel()->MediaResolver().ParseInfoDetailsL( iNewImageInfo, iNewImageFile );

    iOperationState = EUniProcessImgReady;

    iNewImageFile.Close();

    __ASSERT_DEBUG( iEditStore, Panic( EUniNullPointer ) );

    iEditStore->CommitL();

    delete iEditStore;

    iEditStore = NULL;

    CompleteSelf( KErrNone );

    }

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

// CUniEditorProcessImageOperation::DoErrorWithoutStateChange

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

//

void CUniEditorProcessImageOperation::DoErrorWithoutStateChange()

    {

    iNewImageFile.Close();

    delete iNewImageInfo;

    iNewImageInfo = NULL;

    delete iEditStore;

    iEditStore = NULL;

    }

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

// CUniEditorProcessImageOperation::ImageProcessingReady

//

// Image Compressor callback implementation.

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

//

void CUniEditorProcessImageOperation::ImageProcessingReady( TSize aBitmapSize, TInt aFileSize, TBool aCompressed )

    {

    TInt err = iImageProcessor->Error();

    if ( err == KErrNone &&

         ( aBitmapSize.iWidth == 0 || aBitmapSize.iHeight == 0 ||

           ( aCompressed &&

            ( aFileSize == 0 ||

              aFileSize > ( iDocument.MaxMessageSize() - KUniCompressionMargin ) ) ) ) )

        {

        err = KErrGeneral;

        }

    switch ( err )

        {

        case KErrNone:

            {

            iOperationState = EUniProcessImgResolve;

            if ( aCompressed )

                {

                SetError( EUniProcessImgCompressSuccessful );

                }

            break;

            }

        case KErrNoMemory:

            {

            iOperationState = EUniProcessImgError;

            SetError( EUniProcessImgOutOfMemory );

            break;

            }

        case KErrDiskFull:

            {

            iOperationState = EUniProcessImgError;

            SetError( EUniProcessImgOutOfDisk );

            break;

            }

        case KErrNotFound:

            {

            iOperationState = EUniProcessImgError;

            SetError( EUniProcessImgNotFound );

            break;

            }

        default:

            {

            iOperationState = EUniProcessImgError;

            if ( aCompressed )

                {

                SetError( EUniProcessImgCompressFailed );

                }

            else

                {

                SetError( EUniProcessImgScalingFailed );

                }

            break;

            }

        }

    if ( err == KErrCancel )

        {

        CompleteOperation( KErrCancel );

        }

    else

        {

        CompleteOperation( KErrNone );

        }

    }

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

// CUniEditorProcessImageOperation::CheckNeedToProcess

// 

// Checks if scaling/converting/compression is needed.

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

//

TBool CUniEditorProcessImageOperation::CheckNeedToProcess()

    {

    iProcessMethod = EUniProcessImgMethodNone;

    TMmsConformance conformance = 

        iDocument.DataModel()->MmsConformance().MediaConformance( *iImageInfo );

    if ( conformance.iCanAdapt == EFalse )

        {

        return ETrue;

        }

    TSize origSize = iImageInfo->Dimensions();

    if ( origSize.iWidth == 0 || origSize.iHeight == 0 )

        {    

        // Cannot get size -> corrupted

        SetError( EUniProcessImgCorrupted );

        return ETrue;

        }

    TSize scaleSize = ImageSendSize();

    TSize optimizedSize = origSize;

    while ( optimizedSize.iWidth > scaleSize.iWidth ||

            optimizedSize.iHeight > scaleSize.iHeight )

        {

        // Largest possible (1/2)^n size

        optimizedSize.iWidth >>= 1;

        optimizedSize.iHeight >>= 1;

        }

    if ( scaleSize.iWidth < origSize.iWidth ||

         scaleSize.iHeight < origSize.iHeight )

        {

        if ( !iExactImageScaling &&

            ( scaleSize.iWidth > KMmsUniImageSmallWidth ||

              scaleSize.iHeight > KMmsUniImageSmallHeight ) )

            {

            // Use optimized (1/2^n) size when scaling

            // to larger than "Small"

            scaleSize = optimizedSize;

            }

        // else -> scale to exact (non-optimized) size

        iProcessMethod |= EUniProcessImgMethodScale;

        }

    else

        {

        // Scaling not needed. Check possible conversion need.

        scaleSize = origSize;

        if ( conformance.iConfStatus & EMmsConfNokConversionNeeded )

            {

            // Conversion needed.

            iProcessMethod |= EUniProcessImgMethodConvert;

            }

        }

    if ( !( iProcessMethod & EUniProcessImgMethodScale ) &&

         ( iImageInfo->FileSize() + iMessageSize ) > iDocument.MaxMessageSize() &&

         iImageInfo->MimeType().CompareF( KMsgMimeImageJpeg ) == 0 &&

         iMessageSize < KUniCompressionMargin )

        {

        // Only compression needed as image is JPEG that is larger than can be fitted

        // into the message and scaling is not performed. Also current message size

        // is under comression margin.

        iProcessMethod |= EUniProcessImgMethodCompress;

        }

    TBool largeImageQuery = EFalse;

    TInt conformanceWidth = KImageRichWidth;

    TInt conformanceHeight = KImageRichHeight;

    if (iDocument.DataModel()->MmsConformance().ConformanceVersion()> KMmsVersion12)

        {

        conformanceWidth = KImageMegapixelWidth;

        conformanceHeight = KImageMegapixelHeight;    

        }

    if ( iProcessMethod == EUniProcessImgMethodNone )

        {

        // Image won't be processed

        if ( ( origSize.iWidth > conformanceWidth ||

               origSize.iHeight > conformanceHeight ) &&

             ( iImageInfo->FileSize() + iMessageSize ) < iDocument.MaxMessageSize() )

            {

            // Original image width or height is "non-conformant" and original image would 

            // fit to into the message without any processing.

            largeImageQuery = ETrue;

            }

        }

    else

        {

        // Image will be processed

        if ( scaleSize.iWidth > conformanceWidth ||

             scaleSize.iHeight > conformanceHeight )

            {

            // Processed image is "non-conformant" after processing.

            largeImageQuery = ETrue;

            }

        }

    if ( largeImageQuery &&  iDocument.CreationMode() == EMmsCreationModeWarning )

        {

        // Observer will make the final decision whether it will show the query or not.

        if ( !iObserver.EditorOperationQuery( EUniEditorOperationProcessImage,

                                              EMEOQueryGuidedInsertLarge ) )

            {

            SetError( EUniProcessImgUserAbort );

            return EFalse; // Abort

            }

        }

    iScaleSize = scaleSize;

    return ETrue;

    }

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

// CUniEditorProcessImageOperation::CreateEmptyAttachmentL

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