Question

I would like to create a specific QPlainTextEditor in Qt. Namely, I would like to highlight every second row with grey. Now, I’ve made a new QAbstractScrollArea class (HighlightedOddLineScrollArea) and I’ve modified its paintEvent, but I’ve no idea how to implement it into my text editor. Do I have to do it through a constructor, or is there a function to exchange the default one?

Answer 1

You will need to subclass QPlainTextEditor and reimplement its paintEvent function. Since the function is virtual the one that you define will be called instead of the parent class’