Rockwell SchrockMay 26
WIP: A Markdown editor for System 6. Multi-doc support, basic formatting, todo lists, modern keyboard shortcus. #vintagecomputing
Show threadRadek Pietruszewski 🐶

@schrockwell Curious, why is the edited line flickering?

My guess is it's difficult to modify rendered line so it's re-rendered, and since there's no double-buffering, you may see the blank space briefly.

But I also see that a lot of the system UI is flickering on changes. Was it always like this or is it perhaps an artifact of emulation?

May 26 at 7:36amWeb
Show threadRockwell SchrockMay 26

@radex Great question, you basically answered it. I was having trouble getting double-buffering to work so I skipped it for now. Definitely want to improve that, and also be smarter about deciding *when* to re-render.

Interestingly, TeachText has a similar issue. If you edit in the middle of a line, all the text following it flickers on every keystroke.