Изменения в qt? Не работает старая программа

circle.h
 
#ifndef CircleGraphicsItem_H
#define CircleGraphicsItem_H
 
#include <QGraphicsItem>
#include <QSizeF>
#include <QColor>
 
 
class CircleGraphicsItem : public QGraphicsItem
{
public:
 
 
    CircleGraphicsItem(QGraphicsItem *parent = nullptr);
    CircleGraphicsItem(const QSizeF &size, const QColor &dataColor, const QColor &borderColor, QGraphicsItem *parent = nullptr);
 
    QSizeF size() const;
    void resize(const QSize &size);
 
    QColor borderColor() const;
    void setBorderColor(const QColor &borderColor);
 
    QString data() const;
    void setData(const QString &data);
    void setCoordinate(int a, int b);
 
    QRectF boundingRect() const;
    void paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget);
 
 
private:
 
    QSizeF m_size;
    QColor m_borderColor;
    QColor m_dataColor;
 
    QString m_data;
    int x;
    int y;
 
    void paintText(QPainter *painter, const QString &text);
};
#endif // CircleGraphicsItem_H

circle.cpp
#include "circle.h"
 
#include <QPainter>
#include <QGraphicsScene>
 
CircleGraphicsItem::CircleGraphicsItem(QGraphicsItem *parent)
    : QGraphicsItem(parent), m_size(QSizeF(40, 40)), m_borderColor(QColor(Qt::cyan)),
      m_dataColor(QColor(Qt::black))
{
    setFlag(QGraphicsItem::ItemIsFocusable);
}
 
CircleGraphicsItem::CircleGraphicsItem(const QSizeF &size, const QColor &dataColor, const QColor &borderColor, QGraphicsItem *parent)
    : QGraphicsItem(parent), m_size(size), m_borderColor(borderColor), m_dataColor(dataColor)
{
}
 
QSizeF CircleGraphicsItem::size() const
{
    return m_size;
}
 
void CircleGraphicsItem::resize(const QSize &size)
{
    m_size = size;
    update();
}
 
QColor CircleGraphicsItem::borderColor() const
{
    return m_borderColor;
}
 
void CircleGraphicsItem::setBorderColor(const QColor &borderColor)
{
    m_borderColor = borderColor;
    update();
}
 
QString CircleGraphicsItem::data() const
{
    return m_data;
}
 
void CircleGraphicsItem::setData(const QString &data)
{
    m_data = data;
    update();
}
 
QRectF CircleGraphicsItem::boundingRect() const
{
    return QRectF(0, 0, m_size.width(), m_size.height());
}
 void CircleGraphicsItem::setCoordinate(int a, int b)
 {
     x = a;
     y = b;
 }
 
void CircleGraphicsItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    Q_UNUSED(option)
    Q_UNUSED(widget)
 
    QBrush br(m_borderColor, Qt::SolidPattern);
    QPen pen(Qt::black, 3, Qt::SolidLine, Qt::RoundCap);
 
    painter->save();
 
    // Рисуем круг 40х40
 
    pen.setWidth(3);
    painter->setPen(pen);
    painter->setBrush(br);
    painter->drawEllipse(x, y, 40 , 40);
 
    // Пишем число
    paintText(painter, m_data);
 
    painter->restore();
}
 
void CircleGraphicsItem::paintText(QPainter *painter, const QString &text)
{
    QPen pen = painter->pen();
    pen.setColor(m_dataColor);
    painter->setPen(pen);
    painter->drawText(x+15, y+25, text);
}

mainwindow.cpp
 
 QGraphicsScene *PalletScene = new QGraphicsScene(0,0,500,200,this);
    ui->graphicsView->setScene(PalletScene);
 
CircleGraphicsItem *crl = new CircleGraphicsItem;
    crl->setBorderColor(color);
    crl->setData(QString::number(key));
    crl->setCoordinate(x, y);
    PalletScene->addItem(crl);