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2018-09-21
__A_n_o_t_h_e_r__S_m_a_l_l_t_a_l_k__j_o_u_r_n_e_y___________________
have spent the last weeks with another visit to the land of
malltalk. As I have described earlier[0] Smalltalk is a really
nteresting OO langugage with its own eco system.
his time I have been choosing Squeak[1] as my platform in
reparation of a little talk[2] I gave at my local computer club.
hanks to krono[3] for all the help and codezeilen[4] for helping out
ith my patches.
hile the talk had the goal to give a small introduction into
malltalk I wanted to write some little program to get back into the
xplorative development mode of Smalltalk writing.
o naturally I have implemented a small gopher client[5] that will
isplay gopher sites as a BookMorph and is able to render images as
ell.
ou can finde screenshots here[6] and here[7].
s always finding the right classes has been the biggest obstacle for
e. This time Squeak has been an even bigger target in terms of
lasses as Cuis. That's ~2250 classes vs. ~550.
o after some unsuccessful attempts with just a TextMorph inside a
crollpane inside a PasteUpMorph, I finally settled with a BookMorph
hose original intent has been to do interactive books and
resentations.
o you will get a widget with history 'paging' (even with cheesy page
urning sounds!) for free. Which is excellent for implementing gopher
n it turned out.
he rendering logic has been written in an afternoon. Most of the
est of the 2-3 days of time went into diagnosing resizing /
crolling bugs which have been mitigated by moving to BookMorph.
he next step for me is to learn how to really build a UI in
malltalk. Krono pointed me to the Toolbuilder classes and their
uilding spec and I have started to create a client based on my
nitial set of classes, this time refactored as a Smalltalk model. I
ant to do it with the model/viewer paradigm as I hope to gain some
nsights about how this all really works and whether that's a good
it for another ongoing project of mine.
nother issue is to learn how to do UTF-8 properly with Smalltalk /
queak and setup a proper code repository with my own gitd. Learning
ll the tools has been a challenging but pleasant experience. Also
he community in itself is very newcommer friendly and welcoming.
tay tuned for further Smalltalk news!
__References________________________________________________________
0]: gopher://vernunftzentrum.de:70/0/ckeen/phlog/2018-03-11-On-smalltalk.md
1]: https://squeak.org/
2]: gopher://vernunftzentrum.de:70/9/ckeen/smalltalk.pdf
3]: https://toot.berlin/@krono
4]: https://freehold.earth/@codezeilen
5]: gopher://vernunftzentrum.de:70/9/ckeen/Gopher-ck.1.mcz
6]: https://vernunftzentrum.de/media/e90c868d-594c-4cb6-bd16-47c55937b6f4/First…
7]: https://vernunftzentrum.de/media/70e376da-0a5d-4405-b908-d2927c27f092/Book.…
