Matthew,
> I'm not sure how much the problem is in `racket/gui` versus the
> underlying toolkits. Your example program scrolls nicely for me on
> Windows
Interesting, thanks! You are right -- Windows does the scrolling
smoothly with 1000 buttons. As a separate issue: look what
happened when I raised the number to 1500:
#lang racket
(require racket/gui/base)
(define frame
(instantiate frame%
("Test")))
(define scrolling-panel
(new vertical-panel%
(parent frame)
(style '(auto-vscroll))))
(for ((i (in-range 1500)))
(new button%
(parent scrolling-panel)
(horiz-margin 0)
(vert-margin 0)
(label (number->string (+ 1 i)))))
(send frame resize 100 400)
(send frame show #t)
Result:
http://imgur.com/jDP9E2u
Do you have any clue what this can be?
> I think you would have to use `canvas%` and draw/manage the grid and
> controls manually. It's possible that the classes of `embedded-gui`
> will be useful, if you can set up a suitable harness for snips.
OK, thank you for the pointers.
Best regards,
Dmitry
P.S. I am lost and really hoping for an answer from you to the
Racket VM crash report which I posted Thursday :(
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