On Tue, Jul 25, 2017 at 4:52 PM, George Neuner <gneun...@comcast.net> wrote:
> Having little experience with Racket's drawing library, I can't speak to
> how fast it is.  I do recall someone saying it was (mostly) just a thin
> layer over the native platform library, but even "thin layers" add some
> latency.   Nor do I have any clue as to how clever DrRacket is with its
> drawing.

It's true for all other classes that implement the interface control<%>
except the text% and text-field%, the editor infrastructure is completely
implemented in Racket, there *are* some optimizations for speed by, such
as, disabling ligatures. Sometimes I still hope there would be an
alternative to the native text-field controller.

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