/*

* 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: Music Player now playing widget.

*

*/

#include <QPainter>

#include <QImage>

#include <QGraphicsView>

#include "mpsnapshotwidget.h"

#include "mptrace.h"

/*!

    \class MpSnapshotWidget

    \brief Custom HB widget that grabs a snapshot of the graphics view.

    This widget grabs a snapshot of the graphics view so it can be drawn as 

    a decoy for transitios or fast ui response simulation.

*/

/*!

 Constructs the snapshot widget.

 */

MpSnapshotWidget::MpSnapshotWidget( QGraphicsItem *parent )

    : HbWidget(parent),

      mSnapshot(0)

{

    TX_ENTRY_ARGS( " Parent=" << (void *)parent )

    setFlag( QGraphicsItem::ItemHasNoContents, false );

    TX_EXIT

}

/*!

 Destructs the snapshot widget.

 */

MpSnapshotWidget::~MpSnapshotWidget()

{

    TX_ENTRY

    if (mSnapshot)

     delete mSnapshot;

    TX_EXIT

}

/*!

 Takes a snapshot of an \a item within \a graphicsView, also sets its position

  and geometry so it can be used as a decoy for that itme.

 */

void MpSnapshotWidget::capture(QGraphicsView *graphicsView, QGraphicsItem *item)

{

    TX_ENTRY

    if (mSnapshot){

        delete mSnapshot;

        mSnapshot = 0;

    }

    setGeometry(QRect(QPoint(0,0),item->sceneBoundingRect().toRect().size()));

    setPos(item->sceneBoundingRect().toRect().topLeft());

    mSnapshot = new QImage(

            item->sceneBoundingRect().toRect().size() , 

            QImage::Format_ARGB32_Premultiplied);

    QPainter p( mSnapshot);

    graphicsView->render( &p, rect(), item->sceneBoundingRect().toRect());

    TX_EXIT

}

/*!

    \reimp

 */

void MpSnapshotWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

{

    TX_ENTRY

    Q_UNUSED(widget)

    Q_UNUSED(option)

    if (mSnapshot) {

        painter->drawImage( rect(), *mSnapshot );

    }

    TX_EXIT

}