ScrollViewer with Content-Assisted Scrolling

[mstrobel]

I actually wrote this about eight years ago, but never got around to finishing it until your repo caught my eye in my starred list this weekend. If I recall, it's more or less complete. The only issue I could remember was that cursors would continue to paint even when their owner controls were scrolled out of view. I added a fix for that today.

I was able to build a really slick internal tool for inspecting a proprietary shared memory database with Lanterna at my last job, and I wanted to give something back. Hopefully you'll find it useful.

I'm sure there's a bug or two, but give it a go and see what you think. There's an interactive test/demo called ScrollControllerTest that lets you toggle content-assisted scrolling. It renders a checkerboard, and depending on whether the assist is enabled, it will either scroll normally by lines/columns or will snap to the squares' edges.

I'd wanted to include a proof-of-concept for hosting your Table where it would snap to column/row boundaries when scrolling, but I never got around to it.

[MartyIX]

I'm sure there's a bug or two, but give it a go and see what you think. There's an interactive test/demo called ScrollControllerTest that lets you toggle content-assisted scrolling. It renders a checkerboard, and depending on whether the assist is enabled, it will either scroll normally by lines/columns or will snap to the squares' edges.

A screenshot would be nice :)

[mstrobel]

A screenshot would be nice :)

I tried to do a screen recording, but the recorder kept trying to time my keystrokes according to a normal typing cadence, and you ended up not being able to really see any of the scrolling. But here's a still.

With the checkbox checked, scrolling along either axis scrolls exactly one tile into view. Unchecked, it scrolls by one line/column at a time.