After experimenting with Cocoa-based editors, I’ve gone back to IMGUI. The panels I had built with Cocoa were beautiful (and I love native Mac apps), but it was too much work.

Building functional interfaces is a lot faster with IMGUI.

Luckily enough I get to use IMGUI at my day job now and I’ve learned a lot since my last attempt to integrate it into the game.

Turns out the problem of IMGUI and my own UI elements fighting for input events can be solved quite easily. I just need to process things in the right order and honor the “IMGUI wants focus” flags.