/*

* Copyright (c) 2009 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: 

*

*/

#include <fbs.h>

#include <qtcore>

#include <qpixmap.h>

#include <thumbnailmanager.h>

#include <thumbnaildata.h>

#include "thumbnailmanager_qt.h"

#include "thumbnailmanager_p_qt.h"

ThumbnailManagerPrivate::ThumbnailManagerPrivate() : iThumbnailManager( NULL ), byteArray( NULL )

{

    TRAP_IGNORE(

        iThumbnailManager = CThumbnailManager::NewL( *this );

        iThumbnailManager->SetDisplayModeL( EColor64K );

        );

}

ThumbnailManagerPrivate::~ThumbnailManagerPrivate()

{

    if( iThumbnailManager ){

        delete iThumbnailManager;

    }

    if( byteArray ){

        delete byteArray;

    }

}

ThumbnailManager::QualityPreference ThumbnailManagerPrivate::qualityPreference() const

{

    return static_cast<ThumbnailManager::QualityPreference>( iThumbnailManager->QualityPreference() );

}

bool ThumbnailManagerPrivate::setQualityPreference( ThumbnailManager::QualityPreference qualityPreference )

{

    TRAPD( err, iThumbnailManager->SetQualityPreferenceL( static_cast<CThumbnailManager::TThumbnailQualityPreference>(qualityPreference) ));

    return ( err == KErrNone );

}

QSize ThumbnailManagerPrivate::thumbnailSize() const

{

    TSize tsize( iThumbnailManager->ThumbnailSize() );

    QSize qsize( tsize.iWidth, tsize.iHeight);

    return qsize;

}

bool ThumbnailManagerPrivate::setThumbnailSize( const QSize& thumbnailSize )

{

    TRAPD( err, iThumbnailManager->SetThumbnailSizeL( TSize( thumbnailSize.width(), thumbnailSize.height() ) ) );

    return ( err == KErrNone );

}

bool ThumbnailManagerPrivate::setThumbnailSize( ThumbnailManager::ThumbnailSize thumbnailSize )

{

    TThumbnailSize size(EUnknownThumbnailSize);

    switch( thumbnailSize ){

    case ThumbnailManager::ThumbnailSmall:

        size = EListThumbnailSize;

        break;

    case ThumbnailManager::ThumbnailMedium:

        size = EGridThumbnailSize;

        break;

    case ThumbnailManager::ThumbnailLarge:

        size = EFullScreenThumbnailSize;

        break;

    default:

        break;

    }

    TRAPD( err, iThumbnailManager->SetThumbnailSizeL( size ) );

    return ( err == KErrNone );

}

ThumbnailManager::ThumbnailMode ThumbnailManagerPrivate::mode() const

{

    return static_cast<ThumbnailManager::ThumbnailMode>( iThumbnailManager->Flags() );

}

bool ThumbnailManagerPrivate::setMode( ThumbnailManager::ThumbnailMode mode )

{

    TRAPD( err, iThumbnailManager->SetFlagsL( static_cast<CThumbnailManager::TThumbnailFlags>( mode ) ) );

    return ( err == KErrNone );

}

int ThumbnailManagerPrivate::getThumbnail( const QString& fileName, void* clientData, 

        int priority )

{

    int result( -1 );

    QString symbFileName( fileName );

    if( symbFileName.contains( "/" ) )

        symbFileName.replace( "/", "\\", Qt::CaseSensitive );

    RBuf buf;

    TRAP_IGNORE( 

        CleanupClosePushL( buf );

        buf.CreateL( symbFileName.length() );

        buf.Copy( symbFileName.utf16(), symbFileName.length() );

        CThumbnailObjectSource* objSrc = CThumbnailObjectSource::NewLC( buf, KNullDesC );

        result = iThumbnailManager->GetThumbnailL( *objSrc, clientData, priority );

        CleanupStack::PopAndDestroy( 2, &buf );

    );

    return result;

}

int ThumbnailManagerPrivate::getThumbnail( unsigned long int aThumbnailId, void* clientData, 

        int priority )

{

    int result( -1 );

    TRAP_IGNORE( result = iThumbnailManager->GetThumbnailL( aThumbnailId, clientData, priority ));

    return result;

}    

int ThumbnailManagerPrivate::setThumbnail( const QPixmap& source, const QString& fileName, 

        void * clientData, int priority )

{

    int result( -1 );

    RBuf file;

    _LIT( mime, "image/png" );

    if( !byteArray ){

        byteArray = new QByteArray();

    }

    QBuffer buffer( byteArray );

    buffer.open( QBuffer::ReadWrite );

    QDataStream dataStream( &buffer );

    dataStream << source;

    int offset = ( dataStream.version() >= 5 ? 4 : 0 );

    TRAP_IGNORE( 

        CleanupClosePushL( file );

        file.CreateL( fileName.length() );

        file.Copy( fileName.utf16(), fileName.length() );

        HBufC* mimetype = HBufC::NewLC( 9 );

        mimetype->Des() = mime();

        TPtrC8* ptr = new TPtrC8( reinterpret_cast<const TUint8*>( byteArray->data() + offset ), byteArray->count() - offset );

        CThumbnailObjectSource* objSrc = CThumbnailObjectSource::NewLC( ptr, *mimetype, file );

        result = iThumbnailManager->SetThumbnailL( *objSrc, clientData, priority );

        CleanupStack::PopAndDestroy( 3, &file );

    );

    return result;

}

void ThumbnailManagerPrivate::deleteThumbnails( const QString& fileName )

{

    QString symbFileName( fileName );

    if( symbFileName.contains( "/" ) )

        symbFileName.replace( "/", "\\", Qt::CaseSensitive );

    RBuf buf;

    TRAP_IGNORE( CleanupClosePushL( buf );

        buf.CreateL( symbFileName.length() );

        buf.Copy( symbFileName.utf16(), symbFileName.length() );

        CThumbnailObjectSource* objSrc = CThumbnailObjectSource::NewL( buf, KNullDesC );

        iThumbnailManager->DeleteThumbnails( *objSrc );

        CleanupStack::PopAndDestroy( &buf );

        delete objSrc;

    );

}

void ThumbnailManagerPrivate::deleteThumbnails( unsigned long int thumbnailId )

{

    iThumbnailManager->DeleteThumbnails( thumbnailId );

}

bool ThumbnailManagerPrivate::cancelRequest( int id )

{

    return ( iThumbnailManager->CancelRequest( id ) == KErrNone );

}

bool ThumbnailManagerPrivate::changePriority( int id, int newPriority )

{

    return ( iThumbnailManager->ChangePriority( id, newPriority ) == KErrNone );

}

QPixmap ThumbnailManagerPrivate::copyPixmap( CFbsBitmap* bitmap )

{

    TSize size = bitmap->SizeInPixels();

    int bytesPerLine = bitmap->ScanLineLength( size.iWidth,

            bitmap->DisplayMode() );

    const uchar* dataPtr = ( const uchar* ) bitmap->DataAddress();

    return QPixmap::fromImage( QImage(  dataPtr,

                                        size.iWidth,

                                        size.iHeight,

                                        bytesPerLine,

                                        QImage::Format_RGB16 ) );

}

void ThumbnailManagerPrivate::ThumbnailPreviewReady( MThumbnailData& /*aThumbnail*/,

    TThumbnailRequestId /*aId*/ )

{

}

void ThumbnailManagerPrivate::ThumbnailReady( TInt aError, MThumbnailData& aThumbnail,

    TThumbnailRequestId aId )

{

    if( byteArray ){

        delete byteArray;

        byteArray = NULL;

    }

    QPixmap* pixmap( NULL );

    if( aError == KErrNone ){

        pixmap = new QPixmap( copyPixmap( aThumbnail.Bitmap() ) );

    }else {

        pixmap = new QPixmap();

    }

    emit thumbnailReady( *pixmap, aThumbnail.ClientData(), aId, aError );

    delete pixmap;

}