The "traditional" way of doing this in other languages and GUI toolkits is
to
have a separate class for each of your panes (Books, Users and Rentals).
The
constructor would receive the parent widget and other initialization
parameters (e.g. a database connection). Something like this:
;; bo
On Saturday, March 24, 2018 at 9:42:02 PM UTC+8, Matthew Flatt wrote:
>
>
> Can you try a recent snapshot from http://pre.racket-lang.org/ and
> check whether it works for you?
>
Hi Matthew ,
I installed version 6.90.0.23 and indeed the problem is fixed. I will use
this version until the nex
For those who don't have drracket handy: http://pasterack.org/pastes/59296
On Mar 24, 2018 4:26 PM, "Jos Koot" wrote:
>
> Very nice,
> Jos Koot
>
>
> From: racket-users@googlegroups.com [mailto:racket-users@googlegroups.com] On
> Behalf Of Sanjeev Sharma
> Sent:
Thank you for the paper. I had come across units several times, but I could
never figure out *what* their intention was from the documentation. The
paper has at least made their motivation clear, I still have to figure out
how to actually use this feature now.
On Friday, March 23, 2018 at 6:33:
Hi Everyone,
When running the following example from the Racket docs section titled 'The
Nitty Gritty of Pixels, Pens, and Lines':
(define p1 (make-pen "black" 1 "solid" "round" "round"))
(rectangle 20 20 "outline" p1)
instead of a rectangle with all four sides drawn with equal thickness as
s
Very nice,
Jos Koot
_
From: racket-users@googlegroups.com [mailto:racket-users@googlegroups.com] On
Behalf Of Sanjeev Sharma
Sent: 23 March 2018 22:17
To: Racket Users
Subject: [racket-users] sharing an awesome plot - warms the cockles of my heart
I've done no math in 20 years - used t
Hi Alex,
I'm able to replicate the problem using Racket v6.12, the latest "plot"
package, and your https://github.com/alex-hhh/ActivityLog2 repo.
But things seem to work correctly when pairing the latest "plot" with
the current development version of Racket, v6.90.x. It's possible that
the new mo
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