Is it not possible to change the font twice during a paintEvent()? The following minimal example causes an infinite loop of paintEvent()s, if the font is changed twice. If I comment any of the setFont() lines out, it works fine.

Qt Code: 
  1. class FontRepaint : public QWidget
  2. {
  3.     Q_OBJECT
  4.  
  5. public:
  6.     FontRepaint(QWidget *parent = 0);
  7.     ~FontRepaint(){};
  8.  
  9. protected:
  10.     void paintEvent(QPaintEvent*);
  11.  
  12. };
  13.  
  14. FontRepaint::FontRepaint(QWidget *parent)
  15.     : QWidget(parent)
  16. {
  17.  
  18. }
  19.  
  20. void FontRepaint::paintEvent(QPaintEvent*)
  21. {
  22.     qDebug() << "repaint";
  23.     setFont(QFont("Helvetica", 18));
  24.     setFont(QFont("Helvetica", 14));
  25. }
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