Auto-scrolling text

FROM : Brian Bergstrand
DATE : Mon Nov 18 17:12:03 2002

Anyone have any examples of auto-scrolling text using NSTextView? Kind
of like what you see in about boxes all of the time.

Basically you'd have to get the size of the string as drawn on screen
in the current font, figure out the pagination and wrapping in the view
and then calculate how much text is being displayed and how much needs
to be displayed.

That's a lot easier said than done, and the online doc is not much
help. Plus, how do you restart the display from the beginning of the
text, but about two thirds of the way down in the view (so you get the
effect of continuously scrolling text)?

What I really want is something just like PGP 8.0 about box.

Thanks for any pointers.

Brian Bergstrand
<http://www.classicalguitar.net/brian/>  PGP Key ID: 0xB6C7B6A2
Any sufficiently advanced technology is indistinguishable from magic. -
Arthur C. Clarke, "Technology and the Future"