Qt 5.2 QPlainTextEdit how to make code block folding like in Visual Studio for example?

Question

Qt

That is, next to a function or other construction, you need to draw a square with a minus in the expanded state, or with a plus in the collapsed state. I imagine that I will have to redefine paintEvent , but I don’t know what to do next.

Answer 1

Learn :)
https://qt.gitorious.org/qt-labs/devnet-examples/s...