See also http://docs.racket-lang.org/gui/editor-overview.html#%28part._editorthreads%29
which explains why you probably need to make sure your changes from the non-main thread are always between `begin-edit-sequence` and `end-edit-sequence`. At Tue, 26 Aug 2014 07:25:37 -0500, Robby Findler wrote: > The real issue here is that the implementation of text% is not > thread-safe (nor are the GUI controls generally speaking). So when you > modify them from two threads, strange things can happen. > > Robby > > On Tue, Aug 26, 2014 at 6:11 AM, Eli Barzilay <[email protected]> wrote: > > On Tue, Aug 26, 2014 at 6:46 AM, Dmitry Cherkassov > > <[email protected]> wrote: > >> Thanks for your reply. I've found that `disable`-ing canvas of text editor > >> when inserting works too. But with downside that you cant select anything > >> or > >> move the cursor when bulk of text strings are inserted. > > > > Well, that's why I said that you're much better off just doing the > > callback -- even if you disable things, you're likely to get the same > > problem later on. OTOH, doing a callback is easy, and can be done from > > a different thread with no issues, since the actual addition happens > > when the GUI is prepared to do so. > > > > -- > > ((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay: > > http://barzilay.org/ Maze is Life! > > ____________________ > > Racket Users list: > > http://lists.racket-lang.org/users > ____________________ > Racket Users list: > http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
