> On 18 Dec 2015, at 1:49 AM, sqwarqDev <sqwarq...@icloud.com> wrote: > > A couple of years ago I was messing around with NSTextView and NSTextStorage > and accidentally ended up with a method that printed my string (could have > been attributed string) to my textview one character at a time, rather like > an old fashioned teleprinter. > > At the time, that wasn’t the effect I wanted, and so I quickly replaced the > code that was causing the “trouble”. > > Ha. Well, of course, now today I need exactly that effect, but I can’t for > the life of me figure out how I had managed to accidentally get that to > occur.
If it happened accidentally it was most likely due to setting up a situation that caused extreme low performance rather than triggering a designed-in (but undocumented) effect. > > Can anyone offer any pointers? You could just gradually add characters from the original string to a ‘display’ string using a timer and ask a standard layout manager/text view etc. to re-lay and draw the display string. Using a custom NSLayoutManager is another way to go - it gives you the opportunity to override almost any aspect of layout. If you need less complex layout features, you could also do it using Core Text. But just incremening a string and redrawing it in a textview is really by far the simplest approach. —Graham _______________________________________________ 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
