/*

* Copyright (c) 2010 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:  Another view for test application.

*

*/

#include "hgcoverflowwidget.h"

#include "trace.h"

#include <qgraphicslinearlayout.h>

#include <qgraphicssceneresizeevent>

HgCoverflowWidget::HgCoverflowWidget(QGraphicsItem *parent) : HgMediawall(parent), 

mTextPositionsDirty(false)

{

    mTitleLabel = new HbLabel("Title", this);

    mTitleLabel->setAlignment(Qt::AlignCenter);

    mDescLabel = new HbLabel("Description", this);

    mDescLabel->setAlignment(Qt::AlignCenter);    

}

HgCoverflowWidget::~HgCoverflowWidget()

{

}

void HgCoverflowWidget::frontItemChanged ( const QModelIndex & current, const QModelIndex & previous )

{

    if (!this->model())

        return;

    QVariant variant = this->model()->data(current, Qt::DisplayRole);

    QStringList texts = variant.toStringList();

    HbLabel* labels[2];

    labels[0] = mTitleLabel;

    labels[1] = mDescLabel;

    int n = texts.size() > 2 ? 2 : texts.size();

    for (int i = 0; i < n; i++)

        labels[i]->setPlainText(texts[i]);

    mTextPositionsDirty = true;

}

void HgCoverflowWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

{

    HgMediawall::resizeEvent(event);

    mTextPositionsDirty = true;

    QObject::connect(selectionModel(), SIGNAL(currentChanged(const QModelIndex&, const QModelIndex&)), 

        this, SLOT(frontItemChanged(const QModelIndex&, const QModelIndex&)));

}

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

{

    HgMediawall::paint(painter, option, widget);

    if (mTextPositionsDirty)

    {

        QModelIndex index = this->currentIndex();

        if (index.isValid())

        {

            QRectF bounds;

            QPointF halfSize = QPointF(itemSize().width()/2, itemSize().height()/2);

            bounds.setTopLeft(rect().center() + frontItemPositionDelta() - halfSize);              

            bounds.setBottomRight(rect().center() + frontItemPositionDelta() + halfSize);

            mTitleLabel->resize(QSizeF(size().width(), mTitleLabel->minimumSize().height()));

            mTitleLabel->setPos(QPointF(bounds.center().x() - size().width()/2,

                bounds.top() - 40));

            mDescLabel->resize(QSizeF(size().width(), mDescLabel->minimumSize().height()));

            mDescLabel->setPos(QPointF(bounds.center().x() - size().width()/2,

                    bounds.bottom() + 40 - mDescLabel->minimumSize().height()));

            frontItemChanged(index, index);

            mTextPositionsDirty = false;        

        }

    }

}

void HgCoverflowWidget::updateTextPositions()

{

    mTextPositionsDirty = true;

}