I’m trying to make the left padding of an outlineTableColumn wider than normal due to draw something before the title.
For instance, suppose normal look likes:
▶︎A
▼B
▶︎B-1
▶︎B-2
▶︎C
And what I want to implement is like:
▶︎A
▼B
▶︎B-1
▶︎B-2
▶︎C
Would you tell me how to do this?
I tried making a subclass of NSOutlineView and level(forItem:) and level(forRow:), but both methods didn’t get called.
Thanks,
Norio Ota