Underlining words in a QTextEdit

[Fuchsiaff]

I am working on a PyQt5 widget that shows the difference between 2 pieces of code and displays it visually

Now, I need to underline certain lines in a QTextEdit but how do I do that?

[JonB]

@Fuchsiaff
What about starting by reading through https://forum.qt.io/topic/70932/how-to-change-font-weight-at-various-locations-within-a-qtextedit

That's the high-level. Otherwise I think you would be looking at writing code at the painting/drawing level.

[raven-worx]

@Fuchsiaff
here's an example: https://wiki.qt.io/Spell-Checking-with-Hunspell (see Dialog::checkSpelling())
in C++ though, but maybe it helps?

[Fuchsiaff]

@JonB
Styling with HTML is really not what I want to do since I want to apply the same technique later to a QPlainTextEdit.

I have tried applying character formats on words before but that either made my program crash with a SIGSEGV error or crash without any errors

[Fuchsiaff]

@raven-worx That's exactly what I was looking for, thank you!

[JonB]

@Fuchsiaff
I don't understand: @raven-worx 's example uses QTextEdit and you just said you need to use QPlainTextEdit? It also does apply character formats to words".

[Fuchsiaff]

@JonB
As long as it doesn't use html, it should work with both QTextEdit and QPlainTextEdit.