Automatically scaling PixMap to fill entire Graphics view (super grateful for any help)

Rutten

Hi,

I have a main window with a graphicsview. I am displaying a pixmap within it using a pixmapgraphics item. I would really like the pixmap to scale up or down automatically as I enlarge the window.
I've got the graphicsView to grow and shrink as the user changes the size of the window but I don't know how to change the pixamp:

My Class:

class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
void resizeEvent(QResizeEvent *event) override;
private:
Ui::MainWindow *ui;
QGraphicsView *graphicsView;
QGraphicsScene *scene;
QGraphicsPixmapItem *pixMapItem;
QPixmap *myPixMap;
QImage *image;

public slots:

};

In the .cpp file:

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)

{
ui->setupUi( this );
setWindowTitle("Experiment Scene");

graphicsView = new MyGraphicsView;
graphicsView->setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Test"));

int w = 600;
int h = 1400;

scene = new QGraphicsScene(0,0,w,h);
scene->setBackgroundBrush(Qt::black);

// image = new QImage("/Users/virginiarutten/Qt/test.png");

QPixmap pixmap("/Users/virginiarutten/Qt/test.png");

pixMapItem = new QGraphicsPixmapItem(pixmap.scaled(w,h,Qt::KeepAspectRatio));
pixMapItem->setFlag(QGraphicsItem::ItemIsMovable);
pixMapItem->setPos(0,0);
scene->addItem(pixMapItem);

graphicsView->setScene(scene);
graphicsView->setDragMode(QGraphicsView::ScrollHandDrag);
graphicsView->resize(w, h);

// graphicsView->show();
or
ui-> graphicsView->show();

}

I can only detect when the main window is being changed size using:

void MainWindow::resizeEvent(QResizeEvent *) {
qDebug() <<"";
}

I also tried just showing the graphics view (no window)
i.e.: graphicsView->show();

but in that case I don't know how to detect if the user has increased the size of the window.

Please please do give any advice - I've been stuck on this problem for hours.

Many thanks

Flotisable

@Rutten
Is QGraphicsView::fitInView a choice?