SourceViewUsingNSOutlineViewwithNSTreeController. More recent version of SourceViewUsingNSOutlineViewwithNSTreeController, before it was re-written in horrid swift.

github.com/lechium/SourceViewUsingNSOutlineViewwithNSTreeController
by @lechium

Problem

Audience

Keep exploring

Updates

No founder updates yet. Check back soon.