Beginners August 2009

beginners@lists.squeakfoundation.org

33 participants
22 discussions

Equivalent of Ruby's YAML::load in smalltalk
by Frank Church 21 Aug '09

21 Aug '09

Is there a smalltalk command that can load YAML into a Smalltalk array? -- Frank Church ======================= devblog.brahmancreations.com

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ShoutWorkspace, don't colorize syntax
by Giuseppe Luigi Punzi 17 Aug '09

17 Aug '09

Hi, Somebody knows, why, ShoutWorkspace doesn't color the syntax? Cheers.

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Help me FileIn
by Overcomer Man 17 Aug '09

17 Aug '09

Somehow the design of Squeak omits "fileIn" from the same menu as "fileOut" so it's hard to know what works on fileOut is going to work on fileIn. I'm trying to convert software written in another Smalltalk and it would help to file it in. At least adopting each class to Squeak's fileIn format would be easier than copying in every method one at a time. So please help me fileIn. Thanks.

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Peripheral Tutorial?
by Overcomer Man 15 Aug '09

15 Aug '09

Hi, What tutorial is best for learning to work with peripherals? For example, I want to work with USB ports and eventually run a multiple axis robot with sensors, actuators, and a webcam. Maybe even do it using a wireless USB device. Where would I learn to work with things like that as well as scanners and printers controlled by Squeak, Croquet, or Seaside? Thanks much. Kirk Fraser Clatskanie, OR USA

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Win98SE + Squeak?
by Leandro Juarez 09 Aug '09

09 Aug '09

Hi there. I'm Leandro from Rosario, ARG, and I'm trying to run the latest version of Squeak from a machine that is running on WIN98SE. But it doesn't work at all. Any idea why? It's a celeron 900mhz with 284 Mb RAM. I tried to run on an IBM Thinkpad 600E, and it doesn't work also. I would appreciate if anyone tells me which version of squeak should I try with. Thanks in advance. -- Leandro Juarez leandroo(a)gmail.com

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Finished first application
by richard snow 05 Aug '09

05 Aug '09

I've managed to finish my first Squeak app. It has a GUI, and saves the data in XML format using SIXX. It is a Debt Payoff Calculator. You input your income, monthly expenses, and the debts that are outstanding with the interest rates. It prints to the Transcript a report showing how long it would take you to pay off all the debts. -- http://mypals.info

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class variable vs class instance variable uses
by Miguel Enrique Cobá Martinez 05 Aug '09

05 Aug '09

What is the difference between a class variable like Current in Locale class: Object subclass: #Locale instanceVariableNames: 'id shortDate longDate time decimalSymbol digitGrouping currencySymbol currencyNotation measurement offsetLocalToUTC offsetVMToUTC dstActive' classVariableNames: 'Current CurrentPlatform KnownLocales LanguageSymbols LocaleChangeListeners PlatformEncodings' poolDictionaries: '' category: 'System-Localization' that is accessed as (in class side): current "Current := nil" Current ifNil: [ Current := self determineCurrentLocale. "Transcript show: 'Current locale: ' , Current localeID asString; cr"]. ^Current and current in SmalltalkImage class side: SmalltalkImage class instanceVariableNames: 'current' that is accessed as: current "Note that this could be implemented differently to avoid the test" current isNil ifTrue: [current := self basicNew]. ^ current I'm trying to create a singleton but I have some doubts in the correct implementation. I have also seen the explanation on http://coweb.cc.gatech.edu/cs2340/3872 also: http://stackoverflow.com/questions/438729/smalltalk-singleton-pattern-how-d… that corresponds to the first type, using (I suppose) a class variable and http://wiki.squeak.org/squeak/939 that corresponds to the second type. Are there guidelines or pros/cons about singletons on Smalltalk? Thanks, Miguel Cobá

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Re: Beginners Digest, Vol 40, Issue 4
by richard snow 05 Aug '09

05 Aug '09

I can put the image up on my website. It is based on squeak 3.10. the image is at http://mypals.info/files/debt/rssdebt.tar.gz Richard Snow On 8/4/09, beginners-request(a)lists.squeakfoundation.org <beginners-request(a)lists.squeakfoundation.org> wrote: > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. Re: OCompletion remnants (C?drick B?ler) > 2. Re: Finished first application (Benjamin L. Russell) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 4 Aug 2009 00:06:26 +0200 > From: C?drick B?ler <cdrick65(a)gmail.com> > Subject: Re: [Newbies] OCompletion remnants > To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> > Message-ID: > <a49ceb00908031506j2ef1d484ueda48f31d84e47d8(a)mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > 2009/8/2 Paul DeBruicker <pdebruic(a)gmail.com>: >> Hi - >> >> >> I am using Pharo 10388 on Ubuntu 64bit. Through some errant clicking >> while OCompletion was auto-completing I have 9 stranded auto-complete >> drop down menu instances in my image. They're not impacting >> functionality at all but I cannot close them. When I right click on >> them, an OXMenu pops up but it doesn't have a close or delete >> function. How can I close them? > > in the inspector you can evaluate self delete > > or in a workspace, I think this should work: > OXMenuMorph allInstances do: [:ea | ea delete ] > > hth, > > >> >> >> Thanks >> >> Paul >> _______________________________________________ >> Beginners mailing list >> Beginners(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> > > > > -- > Cédrick > > > ------------------------------ > > Message: 2 > Date: Mon, 3 Aug 2009 21:49:33 -0700 (PDT) > From: "Benjamin L. Russell" <dekudekuplex(a)yahoo.com> > Subject: Re: [Newbies] Finished first application > To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> > Message-ID: <150846.85750.qm(a)web32305.mail.mud.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > [For some reason, my previous post of identical content was not archived, so > this post is being re-sent.] > > On Sun, 2 Aug 2009 18:29:37 -0500, richard snow > <richard.snow(a)gmail.com> wrote: > >>I've managed to finish my first Squeak app. It has a GUI, and saves >>the data in XML format using SIXX. It is a Debt Payoff Calculator. >>You input your income, monthly expenses, and the debts that are >>outstanding with the interest rates. It prints to the Transcript a >>report showing how long it would take you to pay off all the debts. > > Congratulations! > > Do you have an image file which we can load with which to try it out? > > -- Benjamin L. Russell > -- > Benjamin L. Russell / DekuDekuplex at Yahoo dot com > http://dekudekuplex.wordpress.com/ > Translator/Interpreter / Mobile: +011 81 80-3603-6725 > "Furuike ya, kawazu tobikomu mizu no oto." > -- Matsuo Basho^ > > > ------------------------------ > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > > > End of Beginners Digest, Vol 40, Issue 4 > **************************************** > -- http://mypals.info

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OCompletion remnants
by Paul DeBruicker 04 Aug '09

04 Aug '09

Hi - I am using Pharo 10388 on Ubuntu 64bit. Through some errant clicking while OCompletion was auto-completing I have 9 stranded auto-complete drop down menu instances in my image. They're not impacting functionality at all but I cannot close them. When I right click on them, an OXMenu pops up but it doesn't have a close or delete function. How can I close them? Thanks Paul

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Squeakfest Brasil report
by Bert Freudenberg 03 Aug '09

03 Aug '09

Forwarding a message from Marta, member of Squeakland's education team, who organized an awesome Squeakfest in Porto Alegre last week. - Bert - ------------------------------ From: "Marta Voelcker" <marta(a)pensamentodigital.org.br> Date: 3. August 2009 00:45:30 MESZ To: <squeakland(a)squeakland.org> Subject: [squeakland] Hello from Porto Alegre Hello, I would like to thank the Etoys team that came to Porto Alegre and have joined us at Squeakfest Brasil and World Conference on Computers in Education www.wcee2009.org From July 23 to 25th we had around 300 people attending Sqeuakfest Brasil at UFRGS Porto Alegre. The conference was held in an auditorium for 250 people and 3 rooms ( located near the auditorium) each room with 20 laptops each. Hands on workshops on these rooms were always crowded. Colleagues from our local research group, Teachers from Uruguay, Kathleen Harness, Kathleen Smith and Avigail Snir ( from Etoys Illinois) and Randall Caton and children form Luciana de Abreu School, have conducted hands on workshops. One of the rooms had focus for developers ( since most attendees were educators), there Yoshiki, Scott Wallace, Alex Warth, Bert and Rita Freudenberg, plus Gonzalo Sabala ( Argentina) and Jecel ( Brasil) conducted activities for developers or activities related to robotics. On the main room there was several kinds of presentations, from a PhD Thesis (Edson Lindner) to high school student sharing their experiences. Local reports like Sdenka Salas Pilco from Peru, and many friends from Uruguay where great! Lea Fagundes pleased us with a great presentation “Why powerful ideas?” and ended the conference with many plans to disseminate the one to one modality among the more than 20 municipalities attending the conference. The Squeakfest had a great and friendly atmosphere. This was the first time that I organized a conference like this, I could be nervous, but I had the constant feeling that I was among friends! I look forward to lead the organization of the second Squeakfest Brasil for July 2010! From July 27th to 31st I, Tim, Rita, Bert, Scott, Yoshiki, Alex Warth, Kathleen Harness, Kathleen Smith, Avigail Snir attended WCCE in Bento Gonçalves, a city near Porto Alegre. There, we have interacted with many other researchers and students working in different areas on ICT for Education. We conducted a Workshop and a Panel about Squeak Etoys. Well, two weeks ago few people in Brasil new about squeak etoys. Now we end the week with a new mailing list America-latina(a)squeakland.org with more than 230 participants and many plans for this new local community, for that and for your friendship and support I want to say thank you for all those that came to Proto Alegre, and for those that couldn´t come, you can start planning for 2010 J, cause we are certainly going to gather again! Kind regards and a I wish you a great Squeakfest in Los Angeles, Marta _______________________________________________ squeakland mailing list squeakland(a)squeakland.org http://lists.squeakland.org/mailman/listinfo/squeakland

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Beginners August 2009