/*

 * 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: This widget displays the pixmap content in viewer.

 *

 */

#include "univiewerpixmapwidget.h"

// SYSTEM INCLUDES

#include <HbTapGesture>

#include <HbWidget>

#include <HbInstantFeedback>

#include <HbMenu>

#include <QPixmap>

#include <QTimer>

#include <thumbnailmanager_qt.h>

// USER INCLUDES

#include "univiewerutils.h"

#include "unidatamodelplugininterface.h"

// LOCAL CONSTANTS

#define LOC_OPEN    hbTrId("txt_common_menu_open")

#define LOC_SAVE    hbTrId("txt_common_menu_save")

static const char PIXMAP_ICON[] = "qtg_small_image";

static const char CORRUPTED_PIXMAP_ICON[] = "qtg_large_corrupted";

static const char VIDEO_MIMETYPE[] = "video";

static const int WIDTH_RATIO = 4;

static const int HEIGHT_RATIO = 3;

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

// UniViewerPixmapWidget::UniViewerPixmapWidget

// @see header file

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

UniViewerPixmapWidget::UniViewerPixmapWidget(QGraphicsItem *parent) :

    HbIconItem(parent), mInfo(0), mViewerUtils(0), mThumbnailManager(0)

{

    this->grabGesture(Qt::TapGesture);

    init();

}

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

// UniViewerPixmapWidget::~UniViewerPixmapWidget

// @see header file

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

UniViewerPixmapWidget::~UniViewerPixmapWidget()

{

    if (mInfo) {

        delete mInfo;

        mInfo = NULL;

    }

}

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

// UniViewerPixmapWidget::populate

// @see header file

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

void UniViewerPixmapWidget::populate(UniMessageInfo *info)

{

    mMimeType = info->mimetype();

    mPixmapPath = info->path();

    /**

     * Create a copy of info for video content.

     * mInfo will be deleted in the destructor.

     */

    if (mMimeType.contains(VIDEO_MIMETYPE)) {

        mInfo = new UniMessageInfo(*info);

    }

    if (info->isProtected()) {

        if (mMimeType.contains(VIDEO_MIMETYPE)) {

            emit thumbnailFound(false, mInfo);

        }

        else {

            this->setIconName(PIXMAP_ICON);

        }

    }

    else if (info->isCorrupted()) {

        if (mMimeType.contains(VIDEO_MIMETYPE)) {

            emit thumbnailFound(false, mInfo);

        }

        else {

            this->setIconName(CORRUPTED_PIXMAP_ICON);

        }

    }

    else {

        if (mMimeType.contains(VIDEO_MIMETYPE)) {

            mThumbnailManager->getThumbnail(mPixmapPath);

            this->ungrabGesture(Qt::TapGesture);

        }

        else {

            QPixmap pixmap(mPixmapPath);

            this->setIcon(HbIcon(pixmap));

        }

    }

}

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

// UniViewerPixmapWidget::gestureEvent

// @see header file

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

void UniViewerPixmapWidget::gestureEvent(QGestureEvent *event)

{

    HbTapGesture *tapGesture = qobject_cast<HbTapGesture*> (event->gesture(Qt::TapGesture));

    if (tapGesture) {

        switch (tapGesture->state()) {

        case Qt::GestureStarted:

        {

            // Trigger haptic feedback.

            HbInstantFeedback::play(HbFeedback::Basic);

            break;

        }

        case Qt::GestureUpdated:

        {

            if (HbTapGesture::TapAndHold == tapGesture->tapStyleHint()) {

                // Handle longtap.

                handleLongTap(tapGesture->scenePosition());

            }

            break;

        }

        case Qt::GestureFinished:

        {

            HbInstantFeedback::play(HbFeedback::Basic);

            if (HbTapGesture::Tap == tapGesture->tapStyleHint()) {

                // Handle short tap

                handleShortTap();

            }

            break;

        }

        case Qt::GestureCanceled:

        {

            HbInstantFeedback::play(HbFeedback::Basic);

            break;

        }

        }

    }

    else {

        HbIconItem::gestureEvent(event);

    }

}

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

// UniViewerPixmapWidget::handleOpen

// @see header file

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

void UniViewerPixmapWidget::handleOpen()

{

    this->ungrabGesture(Qt::TapGesture);

    if (!mViewerUtils) {

        mViewerUtils = new UniViewerUtils(this);

    }

    mViewerUtils->launchContentViewer(mMimeType, mPixmapPath);

    //fire timer to regrab gesture after some delay.

    QTimer::singleShot(300,this,SLOT(regrabGesture()));

}

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

// UniViewerPixmapWidget::handleSave

// @see header file

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

void UniViewerPixmapWidget::handleSave()

{

}

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

// UniViewerPixmapWidget::regrabGesture

// @see header file

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

void UniViewerPixmapWidget::regrabGesture()

{

    this->grabGesture(Qt::TapGesture);

}

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

// UniViewerPixmapWidget::thumbnailReady

// @see header

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

void UniViewerPixmapWidget::thumbnailReady(const QPixmap& pixmap, void *data, int id, int error)

{

    Q_UNUSED(data)

    Q_UNUSED(id)

    this->grabGesture(Qt::TapGesture);

    if (error) {

        emit thumbnailFound(false, mInfo);

    }

    else {

        this->setIcon(HbIcon(pixmap));

        this->hide();

        emit thumbnailFound(true, NULL);

    }

}

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

// UniViewerPixmapWidget::init

// @see header file

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

void UniViewerPixmapWidget::init()

{

    mThumbnailManager = new ThumbnailManager(this);

    mThumbnailManager->setMode(ThumbnailManager::CropToAspectRatio);

    mThumbnailManager->setQualityPreference(ThumbnailManager::OptimizeForQuality);

    mThumbnailManager->setThumbnailSize(getThumbnailSize());

    connect(mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void*, int, int)), this,

        SLOT(thumbnailReady(QPixmap, void*, int, int)));

}

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

// UniViewerPixmapWidget::handleShortTap

// @see header file

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

void UniViewerPixmapWidget::handleShortTap()

{

    emit shortTap(mPixmapPath);

    // Open the media.

    handleOpen();

}

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

// UniViewerPixmapWidget::handleLongTap

// @see header file

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

void UniViewerPixmapWidget::handleLongTap(const QPointF &position)

{

    emit longTap(position);

    HbMenu* menu = new HbMenu;

    menu->setAttribute(Qt::WA_DeleteOnClose);

    menu->addAction(LOC_OPEN, this, SLOT(handleOpen()));

    menu->addAction(LOC_SAVE, this, SLOT(handleSave()));

    menu->setPreferredPos(position);

    menu->show();

}

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

// UniViewerPixmapWidget::getThumbnailSize

// @see header file

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

QSize UniViewerPixmapWidget::getThumbnailSize()

{

    QSize thumbnailSize(1, 1);

    HbWidget *parent = qobject_cast<HbWidget *>(this->parentWidget());

    if (parent) {

        qreal thumbnailWidth = 0.0;

        qreal thumbnailHeight = 0.0;

        parent->style()->parameter("hb-param-screen-short-edge", thumbnailWidth);

        thumbnailHeight = (thumbnailWidth * HEIGHT_RATIO) / WIDTH_RATIO;

        thumbnailSize.setHeight(qRound(thumbnailHeight));

        thumbnailSize.setWidth(qRound(thumbnailWidth));

    }

    return thumbnailSize;

}

// EOF