/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include "hbfadeitem_p.h"

#include "hbwidget_p.h"

#include "hbgraphicsscene.h"

#include <QEvent>

#include <QApplication>

/*!

  \class HbFadeItem

  \brief Item that blocks all scene events.

  \internal

*/

class HbFadeItemPrivate : public HbWidgetPrivate

{

    Q_DECLARE_PUBLIC(HbFadeItem)

public:

    HbFadeItemPrivate();

    virtual ~HbFadeItemPrivate();

    void init();

    mutable QRectF mRect;

private:

    static HbFadeItemPrivate *d_ptr(HbFadeItem *fadeItem) {

        Q_ASSERT(fadeItem);

        return fadeItem->d_func();

    }

};

HbFadeItemPrivate::HbFadeItemPrivate()

{

}

HbFadeItemPrivate::~HbFadeItemPrivate()

{

}

void HbFadeItemPrivate::init()

{

    Q_Q(HbFadeItem);

    q->setAcceptHoverEvents(true);

    // This is needed to be able to block moving the focus to items behind background item by

    // clicking on them.

    q->setFlag(QGraphicsItem::ItemIsFocusable);

}

HbFadeItem::HbFadeItem(QGraphicsItem *parent) : HbWidget(*new HbFadeItemPrivate, parent)

{

    Q_D(HbFadeItem);

    d->q_ptr = this;

    d->init();

}

HbFadeItem::HbFadeItem(HbFadeItemPrivate &dd, QGraphicsItem *parent) : HbWidget(dd, parent)

{

    Q_D(HbFadeItem);

    d->q_ptr = this;

    d->init();

}

QRectF HbFadeItem::boundingRect() const

{

    Q_D(const HbFadeItem);

    if (!d->mRect.isValid()) {

        // set size so that it is big enough

        // to cover the screen both landscape and portrait mode

        const QSizeF screenSize = HbDeviceProfile::profile(this).logicalSize();

        qreal dim = qMax(screenSize.width(), screenSize.height());

        d->mRect.adjust(0, 0, dim, dim);

    }

    return d->mRect;

}

bool HbFadeItem::sceneEvent(QEvent *event)

{

    if (event->type() == QEvent::FocusIn) {

        // Prevents last focus item losing its focus

        // This event is received only when popup is modal

        QFocusEvent restoreLastFocus(QEvent::FocusIn, Qt::OtherFocusReason);

        QApplication::sendEvent(window()->scene(), &restoreLastFocus);

    }

    event->accept();

    return true;

}

bool HbFadeItem::event(QEvent *event)

{

    if (event->type() == QEvent::Polish) {

        // No need for any real polishing.

        Q_D(HbFadeItem);

        d->polished = true;

        return true;

    }

    return HbWidget::event(event);

}