/*

* 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 <QString>

#include "cxutils.h"

#include "thumbnailmanager_qt.h"

/*!

* ThumbnailManager::ThumbnailManager

*/

ThumbnailManager::ThumbnailManager(QObject* parentPtr)

    : mTimer(this)

{

    Q_UNUSED(parentPtr);

    mCurrentThumbnailId = 0;

    mThumbnailManagerIds.clear();

    mTimer.setSingleShot(true);

    connect(&mTimer, SIGNAL(timeout()),

            this, SLOT(emulateThumbnailReady()));

}

/*!

* ThumbnailManager::~ThumbnailManager

*/

ThumbnailManager::~ThumbnailManager()

{

}

/*!

* create thumbnail for the given image/video file name and data.

*/

int ThumbnailManager::getThumbnail(const QString& filename, void * clientData, int priority)

{

    CX_DEBUG_ENTER_FUNCTION();

    Q_UNUSED(priority);

    int id = 0;

    if (filename.isNull() || filename.isEmpty()) {

        id = -1;

    } else {

        // generate thumbnail id

        id = mCurrentThumbnailId;

        mThumbnailManagerIds.append(mCurrentThumbnailId++);

    }

    // try emulating thumbnail ready

    mTimer.start(1000);

    CX_DEBUG_EXIT_FUNCTION();

    return id;

}

int ThumbnailManager::setThumbnail( const QImage& source, const QString& fileName,

      void *clientData, int priority)

{

    Q_UNUSED(clientData);

    Q_UNUSED(priority);

    int status = KErrNone;

    if (fileName.isNull() || fileName.isEmpty()) {

        status = KErrNotFound;

    } else {

        // generate thumbnail id

        mThumbnailManagerIds.append(mCurrentThumbnailId);

    }

    emit thumbnailReady(QPixmap(), clientData, mCurrentThumbnailId, status);

    mCurrentThumbnailId++;

    CX_DEBUG_EXIT_FUNCTION();

    return mCurrentThumbnailId;

}

/*!

* start canceling creating thumbnail operation

*/

bool ThumbnailManager::cancelRequest(int id)

{

    return mThumbnailManagerIds.contains(id);

}

/*!

* slot that emulates thumbnail ready

*/

void ThumbnailManager::emulateThumbnailReady()

{

    // get the current thumbnail id

    int id = mCurrentThumbnailId - 1;

    int status = KErrNone;

    if (id == -1) {

        // if there are no valid thumbnails

        status = KErrNotFound;

    }

    emit thumbnailReady(QPixmap(), 0, id, status);

}