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#include "layoutitem.h"

//! [0]

LayoutItem::LayoutItem(QGraphicsItem *parent/* = 0*/)

    : QGraphicsLayoutItem(), QGraphicsItem(parent)

{

    m_pix = new QPixmap(QLatin1String(":/images/block.png"));

    setGraphicsItem(this);

}

//! [0]

LayoutItem::~LayoutItem()

{

    delete m_pix;

}

//! [1]

void LayoutItem::paint(QPainter *painter,

    const QStyleOptionGraphicsItem *option, QWidget *widget /*= 0*/)

{

    Q_UNUSED(widget);

    Q_UNUSED(option);

    QRectF frame(QPointF(0,0), geometry().size());

    qreal w = m_pix->width();

    qreal h = m_pix->height();

    QGradientStops stops;

//! [1]

//! [2]

    // paint a background rect (with gradient)

    QLinearGradient gradient(frame.topLeft(), frame.topLeft() + QPointF(200,200));

    stops << QGradientStop(0.0, QColor(60, 60,  60));

    stops << QGradientStop(frame.height()/2/frame.height(), QColor(102, 176, 54));

    //stops << QGradientStop(((frame.height() + h)/2 )/frame.height(), QColor(157, 195,  55));

    stops << QGradientStop(1.0, QColor(215, 215, 215));

    gradient.setStops(stops);

    painter->setBrush(QBrush(gradient));

    painter->drawRoundedRect(frame, 10.0, 10.0);

    // paint a rect around the pixmap (with gradient)

    QPointF pixpos = frame.center() - (QPointF(w, h)/2);

    QRectF innerFrame(pixpos, QSizeF(w, h));

    innerFrame.adjust(-4, -4, +4, +4);

    gradient.setStart(innerFrame.topLeft());

    gradient.setFinalStop(innerFrame.bottomRight());

    stops.clear();

    stops << QGradientStop(0.0, QColor(215, 255, 200));

    stops << QGradientStop(0.5, QColor(102, 176, 54));

    stops << QGradientStop(1.0, QColor(0, 0,  0));

    gradient.setStops(stops);

    painter->setBrush(QBrush(gradient));

    painter->drawRoundedRect(innerFrame, 10.0, 10.0);

    painter->drawPixmap(pixpos, *m_pix);

}

//! [2]

//! [3]

QRectF LayoutItem::boundingRect() const

{

    return QRectF(QPointF(0,0), geometry().size());

}

//! [3]

//! [4]

void LayoutItem::setGeometry(const QRectF &geom)

{

    prepareGeometryChange();

    QGraphicsLayoutItem::setGeometry(geom);

    setPos(geom.topLeft());

}

//! [4]

//! [5]

QSizeF LayoutItem::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const

{

    switch (which) {

    case Qt::MinimumSize:

    case Qt::PreferredSize:

        // Do not allow a size smaller than the pixmap with two frames around it.

        return m_pix->size() + QSize(12, 12);

    case Qt::MaximumSize:

        return QSizeF(1000,1000);

    default:

        break;

    }

    return constraint;

}

//! [5]