Problem displaying image on a customized button

We are migrating from Qt3 to Qt4. In Qt3, we were using “QButton” as the base class from which we have derived and created our own class “QCButton” to create a customized button with text and image upon it. We used a label whose parent will be the QCButton’s object to set an image on it and with the help of setPaletteBackgroundPixmap() function we were able to set an image and create a customized ellipse-shaped button.

class QCButton : public QButton
{
...
};

In Qt4, we have used QAbstractButton as the base class (since QButton is obsolete) from which we have derived and created our own class “QCButton”.

class QCButton : public QAbstractButton
{
...
};


We have used the below statements as an alternative to the setPaletteBackgroundPixmap():-

QPalette palette;
palette.setBrush(label->backgroundRole(), QBrush (pixmap));
label->setPalette(palette);

But, using this we are not able to achieve what we want in Qt4 i.e. a customized ellipse-shaped button with a text on it.

Please advice Qt Experts.
Thanks in Advance!
-- Bhavik.

Ok guys! Got the solution...Basically, in this case we have to reimplement the paintEvent() method. This has become a must in Qt4 since it is a pure virtual function, which was not the case in Qt3.