I'd like to be able to have a fixed size bar on the left of my window where I keep my buttons, labels, etc. and a QPlainTextEdit (as a log) on the right, which should be resized dynamically when changing the overall window size.

Ideally I would like the left side to be fixed and the right to by dynamically resized.

I just googled for hours without any luck and hope that I am just too inexperienced to find a simple solution.