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#include "cnttransformthumbnail.h"

#include "cntmodelextuids.h"

#include "qcontactthumbnail.h"

#include "cntsymbiantransformerror.h"

#include <QPixmap>

#include <QImage>

const TSize KMaxThumbnailSize(80, 96);

CntTransformThumbnail::CntTransformThumbnail() :

    m_thumbnailCreator(0)

{

}

CntTransformThumbnail::~CntTransformThumbnail()

{

    delete m_thumbnailCreator;

}

QList<CContactItemField *> CntTransformThumbnail::transformDetailL(const QContactDetail &detail)

{

    if(detail.definitionName() != QContactThumbnail::DefinitionName)

        User::Leave(KErrArgument);

    QList<CContactItemField *> fieldList;

    //cast to thumbnail

    const QContactThumbnail &thumbnail(static_cast<const QContactThumbnail&>(detail));

    if(!thumbnail.thumbnail().isNull()) {

        // lazy instantiation

        if(!m_thumbnailCreator) {

            m_thumbnailCreator = new (ELeave) CntThumbnailCreator();

        }

        // Scaling is done before converting to CFbsBitmap because

        // toSymbianCFbsBitmap may generate a duplicate of the bitmap data

        // Note: scaling to thumbnail may take some time if the image is big

        // TODO: aspect ratio?

        QPixmap scaled = QPixmap::fromImage(thumbnail.thumbnail().scaled(KMaxThumbnailSize.iWidth, KMaxThumbnailSize.iHeight));

        CFbsBitmap* bitmap = scaled.toSymbianCFbsBitmap();

        CleanupStack::PushL(bitmap);

        m_thumbnailCreator->addThumbnailFieldL(&fieldList, bitmap, KMaxThumbnailSize);

        CleanupStack::Pop(bitmap); // ownership transferred

    }

    return fieldList;

}

QContactDetail *CntTransformThumbnail::transformItemField(const CContactItemField& field, const QContact &contact)

{

	Q_UNUSED(contact);

    QContactThumbnail *thumbnail = new QContactThumbnail();

    if (field.ContentType().ContainsFieldType(KUidContactFieldPicture)

        || field.ContentType().ContainsFieldType(KUidContactFieldVCardMapJPEG)) {

        // use the existing QContactAvatar (if available) in case of a pixmap

        // field.

        CContactStoreField* storage = field.StoreStorage();

        QImage image;

        HBufC8 *theThing = storage->Thing();

        QByteArray bytes((char*)theThing->Ptr(), theThing->Length());

        bool loaded = image.loadFromData(bytes, "JPG");

        if (loaded) {

            thumbnail->setThumbnail(image);

        } else {

            User::Leave(KErrInvalidContactDetail);

        }

    }

    return thumbnail;

}

bool CntTransformThumbnail::supportsField(TUint32 fieldType) const

{

    bool ret = false;

    if (fieldType == KUidContactFieldPicture.iUid

        // Used as "extra mapping/extra field type" by thumbnail data fields

        || fieldType == KUidContactFieldVCardMapJPEG.iUid) {

        ret = true;

    }

    return ret;

}

bool CntTransformThumbnail::supportsDetail(QString detailName) const

{

    bool ret = false;

    if (detailName == QContactThumbnail::DefinitionName) {

        ret = true;

    }

    return ret;

}

QList<TUid> CntTransformThumbnail::supportedSortingFieldTypes(QString /*detailFieldName*/) const

{

    // Sorting not supported

    return QList<TUid>();

}

/*!

 * Checks whether the subtype is supported

 *

 * \a subType The subtype to be checked

 * \return True if this subtype is supported

 */

bool CntTransformThumbnail::supportsSubType(const QString& /*subType*/) const

{

    // XXX todo

    return false;

}

/*!

 * Returns the filed id corresponding to a field

 *

 * \a fieldName The name of the supported field

 * \return fieldId for the fieldName, 0  if not supported

 */

quint32 CntTransformThumbnail::getIdForField(const QString& /*fieldName*/) const

{

    // XXX todo

    return 0;

}

/*!

 * Modifies the detail definitions. The default detail definitions are

 * queried from QContactManagerEngine::schemaDefinitions and then modified

 * with this function in the transform leaf classes.

 *

 * \a definitions The detail definitions to modify.

 * \a contactType The contact type the definitions apply for.

 */

void CntTransformThumbnail::detailDefinitions(QMap<QString, QContactDetailDefinition> &definitions, const QString& contactType) const

{

    Q_UNUSED(contactType);

    Q_UNUSED(definitions);

    // Don't need to munge the definition

}