Actually the flag version does not work for me.
(I thought it did because on-paint was fast enough not to be noticed that
it was sequentially processing every mouse event with a paint call)
#(struct:v2 109 80) ;; mouse pos
draw ;; beginning of draw
cpu time: 8 real time: 8 gc time: 0 ;;
Hi all,
I just registered the Racket project on irc.libera.chat with ownership of
#racket and #racket-*.
Would those who have served as chanops on freenode who are willing to also
do the same for libera.chat please email me privately to let me know your
nick etc.?
Thanks!
Tony
--
You
Ok, i think i found in the kernel where this is set up.
```
(define 1/check-for-break
...
(let ((exn:break*_0
(let ((tmp_0 (thread-pending-break t_0)))
(if (eq? tmp_0 'hang-up)
Den lør. 22. maj 2021 kl. 05.37 skrev schle...@gmail.com <
schleesi...@gmail.com>:
> I have a racket gui app that uses a canvas% with overridden on-event and
> on-paint methods.
> When the user hovers over drawn elements the on-paint is called via (send
> this refresh)
> to display the element
A more general remank on the governance of these channels (freenode /
libera, but also other non-IRC venues like Discord or Slack).
I think it is important that there is no ambiguisty as to whether the
Racket project has meaningful control over a given communication
channel.
For instance, if
I tried your flag version too, I like it, it works without delay and is
simple.
But theoretically you can have situations where the drawn output doesn't
fully represent the current state (if some things were already done and the
data was changed afterwards).
Unless I misunderstand your
On Saturday, May 22, 2021 at 12:42:30 PM UTC+8 schle...@gmail.com wrote:
> Maybe someone has a clever solution to collapse the calls to refresh less
> manually.
>
I experienced a similar problem as you, where I have to refresh a canvas on
a mouse event and the paint method is somewhat slow
The difference between 23ms and 50ms was that the memoization wasn't doing
its job.
I removed some calls to get-brush and set-brush, only calling set-brush
when the color changes. (only writing the value not reading it)
Specialized a function that returned an ignored argument, to not calculate
8 matches
Mail list logo
