[resending with an even smaller attachment] I am working on a document storage format that consists of logical zones that nest. You can think of them sort of like <div> elements from (X)HTML:
<div id="foo"><div id="bar">All work and no play.</div></div> Ordinarily, I would like for the zone boundaries marked by <div> and </div> to be invisible to the user. Ordinary cursor motion commands should step from character to character, ignoring the <div> boundaries. However, I also want to offer a display & editing mode to the user where they can see the boundaries and use special cursor motion commands to "creep" the cursor across the boundaries. In this mode, there are additional locations addressable by the cursor. I have marked those locations with a pipe (|): |<div id="foo">|<div id="bar">All work and no play.</div>|</div>| I took the attached screenshot in Numbers. It shows roughly the visual effect I'm looking for. Incidentally, it's possible to move the cursor back and forth over the crescent that "closes" the AVERAGE function cell. That's good. It is also possible to delete the crescent, which is neither necessary nor desirable for my purposes, but I guess that I could accept it. It would be nice if I could accomplish this effect without introducing characters to my NSTextStorage. It looks like TextKit 2 lets one do something like this rather easily, but I'm leary of adopting it while it's so green. Is anyone aware of a "worked example" I can read for TextKit 1? Dave -- David Young dyo...@pobox.com Urbana, IL (217) 721-9981
_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
