How to paint (QPainter) on a label ?

[d@nyal]

Hi,
I have several labels on my screen(mainwindow.ui) And I need to draw on them(Overlay).
Unfortunately "Qpainter" just draws behind labels.

void MainWindow::paintEvent( QPaintEvent * event )
{
     QPainter painter(this);
     painter.setPen(QPen(Qt::black, 2));
 
     //ui->pushButton->clearFocus();
     //ui->pushButton->setAutoFillBackground(true);
     //ui->pushButton->setBackgroundRole();
     //ui->pushButton->setForegroundRole();
 
 
     //painter.setBackgroundMode();
 
     QPainterPath path;
     path.moveTo(qrand() % 80, qrand() % 320);
     path.cubicTo(200, 80, 320, 80, 480, 320);
     painter.setPen(QPen(Qt::black, 8));
     painter.drawPath(path);
}

void MainWindow::paintEvent( QPaintEvent * event )
{
     QPainter painter(this);
     painter.setPen(QPen(Qt::black, 2));

     //ui->pushButton->clearFocus();
     //ui->pushButton->setAutoFillBackground(true);
     //ui->pushButton->setBackgroundRole();
     //ui->pushButton->setForegroundRole();

     
     //painter.setBackgroundMode();
     
     QPainterPath path;
     path.moveTo(qrand() % 80, qrand() % 320);
     path.cubicTo(200, 80, 320, 80, 480, 320);
     painter.setPen(QPen(Qt::black, 8));
     painter.drawPath(path);
}

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I searched for lots of beheviars belonging "QPainter" and "QLabel".

Can you guide me how can I fix it?


Thanks.