Beginners July 2009

beginners@lists.squeakfoundation.org

33 participants
27 discussions

Is there a tandard way to attach context menus
by Herbert König 04 Nov '11

04 Nov '11

Hello all, is there a standard way to attach a context menu to a morph? It's fairly easy to do by checking for yellowButtonPressed and manually firing up a MenuMorph. But it is sufficient to implement #addCustomMenuItems:hand: to get an enhanced Halo menu while #addYellowButtonMenuItemsTo:event: and #hasYellowButtonMenu don't help. So is there a predefined way without everybody doing his own? Thanks, Herbert mailto:herbertkoenig@gmx.net

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Omnibrowser help
by Rob Rothwell 14 Aug '11

14 Aug '11

Are there some tips/documentation somewhere on getting the most out of the OmniBrowser? The MulitpleSelection browser looks interesting (sort of like the tabbed browser in VisualWorks), but I don't quite understand its behaviour and what method it decides to show in which pane when you move around or save changes. On the same topic, can anyone point me toward how I could add a new item to the class context menu in the OmniBrowser? I want to add a new template selection menu item (like "new class template" and "new trait template") because I have created a method that creates TWO classes at the same time for an Aida application (A domain model class AND its associated WebApp class). Thanks, Rob Rothwell

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Resources with Monticello
by Matthias Korn 15 Apr '10

15 Apr '10

Hi all, how does one work with resources (e.g. image files (GIFs, ...)) used in the application when working with Monticello and in general? Right now I have them on my hard drive and they are read live into Squeak when they are needed. Of course, others don't have the files at hand when working in a distributed fashion. What are the best practices in regard of distribution/packaging as well as performance? Thanks, Matthias -- Matthias Korn Institut für Wirtschaftsinformatik Fachbereich 5 Universität Siegen Telefon: +49 (0) 271 / 23 67 660 Mobil: +49 (0) 176 / 700 17 17 8 Uni: +49 (0) 271/ 740 - 3382 eMail: matthias.korn(a)uni-siegen.de

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Equivalent of Ruby's YAML::load in smalltalk
by Frank Church 20 Aug '09

20 Aug '09

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

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\n equivalent?
by Paul DeBruicker 02 Aug '09

02 Aug '09

Hi - What Character or String is equal to \n in C or Python? Thanks Paul

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Contents of Transcript
by Guillaume Grondin 30 Jul '09

30 Jul '09

Hi, I would like to fileout the content of Transcript. But it doesn't seem to be possible because "Squeak Transcript (different from VW Transcript) is the stream of not yet appened text" (nicolas cellier). (How about pharo ?) One solution seems to be to add a dependent to Transcript and log stuff on "updated: #appendEntry". Is there a more practical solution ? Regards, Guillaume Grondin previous discussion on this matter : http://marc.info/?l=squeak-dev&m=119282200100489&w=2 http://aspn.activestate.com/ASPN/Mail/Message/squeak-list/2498160 > On Saturday 20 October 2007 3:00 am, nicolas cellier wrote: > >> Transcript must now be viewed as a TranscriptingService you'll have to >> subscribe to... For that reason I would rather call it a Subscript! -- Guillaume GRONDIN (Dr) Ph.D in Computer Science =========================================== Ecole des Mines de Douai - Dept. I.A. 941, rue Charles Bourseul BP 10838 - 59508 Douai Cedex, France Tél : (+33) (0) 3 27 71 24 53 Fax : (+33) (0) 3 27 71 29 17 Email: grondin(a)ensm-douai.fr http://vst.ensm-douai.fr/grondin

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Squeak on FreeBSD/amd64 - Image Question(s)
by Ralf Folkerts 30 Jul '09

30 Jul '09

Hi, I wanted to learn Smalltalk and wanted to go for Squeak. My OS is FreeBSD/amd64. I first wanted to install the FreeBSD Port; however, it stopped mentioning it was for i386 only and I was running amd64. So I tried to download the FreeBSD/i386 package from http://squeak.org/Download/ and installed according to the docs. However, that Squeak ran into a Trap 6; it seems it was unable to connect to X11 (I think it's because my X11-Libs are 64-bit only and so the 32-bit Squeak-X11-so might have run into trouble). So I decided to do it the hard way and to compile for FreeBSD/amd64 on my own. I searched for the docs I found on squeak.org and squekvm.org, and tried to work as closely as possible to this doc: http://squeakvm.org/unix/. I checked the sources out using Subversion, configured and compiled. Ran into some Problems with missing Include-Directories in Makefiles, configured again by adding my local Include-Dirs, comoiled again, ran into an error that the ExtendedClipboard's Plugins Makefiles was missing my local Include, added that manually -- and finally had a seemingly working VM. However, I now need "the Image" :-( I found some docs on a "VMMmaker" which can be run by running squeak and passing it the name of and .image-File. So I did a "find . -name \*.image -print" in the platforms-Directory of the Sources I checked out - however, there is no .image-File there :-( Another doc mentioned to download a "full" Image; however, I only found "basic" ones? So, I tried to download http://ftp.squeak.org/3.10/Squeak3.10.2-7179-basic.zip unzipped that into an empty Directory and ran "squeak Squeak3.10.2-7179-basic" - and squeak did start, well, it was complaining about missing sources, so I have to solve that. However, in the "platforms/unix/misc/" Directory there are some Files plus Directions that I'd like to adhere, but beeing a complete noob have no idea how. So, could somebody please hint me at how to get "the correct" Image for 64bit FreebSD/amd64? Or is the Downloaded one OK? If it is, however, wouldn't I need a 3.10.5 Image instead of 3.10.2? Would really be nice if somebody could help me - esp. because it seems to me that many of the Docs I found are a bit outdated and sent me into wrong directions I think... MTIA! Cheers, _ralf_

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Re: Smalltalk Data Structures and Algorithms
by Alan Kay 29 Jul '09

29 Jul '09

To WIMC This is an interesting example of an ever increasing web disease -- that is: expressing mere opinions without foundations or checking. This one is easy, because there is a readily available "Early History of Smalltalk" that the ACM got me to write in 1993. So why wouldn't people just type "history of smalltalk" into Google? (I don't know and I haven't been able to figure this out). The very first hit finds this paper. (This one is not the best version of it because someone just scanned the doc I wrote to get an HTML version and left out lots of the pictures. But in looking at it, it seems to answer this question very straightforwardly -- and that answer was given by "someone who was actually there" and had a hand in the invention of Smalltalk, rather than people with opinions from the side.) What is wrong? Why is mere opinion so dominating discussions held on the easiest medium there has ever been that can provide substantiations with just a little curiosity and work? Is the world completely reverting to an oral culture of assertions held around an electronic campfire? As anyone who would be willing to read a few pages of writing will be able to see, there were a number of important influences on the invention of objects and then the invention of Smalltalk itself. Objects a. The first two influences I saw were pure mathematics and molecular biology (these were my two majors in college starting in 1958). b. The second two I saw (in the very early 60s) were procedural abstractions of date structures in the Burroughs 220 file system for the Air Force, and especially the Burroughs B5000 computer hardware. c. "In the air" in the ARPA community in 1966 was the intention to invent a new kind of distributed network with "no central control or switching". d. The next two I saw (in 1966 in the very same week) were Sketchpad and Simula. Sketchpad was the dominant metaphor, but I had to see Simula a few days later to understand just how great an idea Sketchpad was. These seven influences got me to thinking about one abstraction that was indeed like a biological cell on the one hand and an entire computer on the other which could be universally used at all levels of scales in both software and hardware to "model anything" (including all the old inconvenient things computing was using). This is where "message passing" took hold as something stronger in concept and more loosely coupled and scalable system-wise. Somewhat asked me what I was doing and I said "object oriented computing". (I should have thought much harder about the choice of terms) Smalltalk a. In 1968 I saw Seymour Papert, Wally Feurzig, et al., and LOGO and got interested in the idea of a computer and computer environment for children. Right around that time I read Marvin Minsky's incredible book "Computation: Finite and Infinite Machines" and he made a kind of Lisp from Goedel numbers that was really beautiful. This got me to look at Lisp again and finally understand what was truly great about it. In 1970 I was at the Stanford AI Project on a postdoc and I started playing around with various kinds of interpreters. b. In 1971 at PARC we had the wonderful funding to be able to try to really make all this happen, and I started thinking about a programming language for children that would not be harder to learn than LOGO but which would be object oriented and also use Carl Hewitt's ideas in PLANNER as a way of communicating in forms that could be used for deduction (this was somewhat like the object-oriented Prologs that were done much later). c. In 1972, while working on all this "the bet" happened and I spent a few weeks just making the simplest possible OOP language using McCarthy's techniques first employed for Lisp in the late 50s. This is in the Appendix of the "Early History" paper, and it is what Dan Ingalls implemented in a month to get a first running version of Smalltalk. I most definitely still think of OOP at its best as being "biological". Best wishes (and happy reading) Alan > From: Benjamin L. Russell <DekuDekuplex(a)Yahoo.com> > Date: 24. Juli 2009 03:37:04 GMT-03:00 > To: beginners(a)lists.squeakfoundation.org > Subject: [Newbies] Re: Smalltalk Data Structures and Algorithms > Reply-To: "A friendly place to get answers to even the most basic questions about Squeak." <beginners(a)lists.squeakfoundation.org> > > On Mon, 29 Jun 2009 11:25:34 +0530, "K. K. Subramaniam" > <subbukk(a)gmail.com> wrote: > >> Concepts in Squeak have their origins >> in biology rather than in computational math. The boundary between 'hardware' >> and 'software' is blurry. See the reading list at >> http://www.squeakland.org/resources/books/readingList.jsp >> particularly "The Selfish Gene" by Richard Dawkins. > > Richard O'Keefe refutes this claim in his post [1] "Re: Re: [Haskell] > Re: 20 years ago," dated "2009-07-16 01:38:14 GMT," on the > Haskell-Cafe mailing list (see > http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/61329); > _viz._: > >>>> Concepts in Squeak [a dialect and implementation of Smalltalk] have >>> their origins >>>> in biology rather than in computational math.... >> >> That posting is wrong. >> >> Smalltalk's roots are very firmly planted in Lisp, >> with perhaps a touch of Logo (which also had its roots in Lisp). >> The classic Smalltalk-76 paper even contains a meta-circular >> interpreter, which I found reminiscent of the old Lisp one. >> The "biological" metaphor in Smalltalk is actually a SOCIAL >> metaphor: sending and receiving messages, and a "social" >> model of agents with memory exchanging messages naturally >> leads to anthropomorphisms. >> >> The other classic OO language, which inspired C++, which >> inspired Java, which inspired C#, is Simula 67, which has >> its roots in Algol 60. While Simula 67 was sometimes used >> for simulating biological processes, the main background >> was discrete event systems like factories and shops; there >> are no biological metaphors in Simula. > > -- Benjamin L. Russell > > [1] O'Keefe, Richard. "Re: Re: [Haskell] Re: 20 years ago." > gmane.comp.lang.haskell.cafe. Gmane. 16 July 2009. 24 July 2009. > <http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/61329>. > --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

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How to make Font larger in Squeak Browsers/etc..
by vmars 29 Jul '09

29 Jul '09

Please, How to make Font larger in Squeak Browsers/etc.. ? All of the Squeak browsers etc. have too small Fonts for me . Thanks..vm -- View this message in context: http://www.nabble.com/How-to-make-Font-larger-in-Squeak-Browsers-etc..-tp24… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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'evaluating SokobanMorph random openInWorld in a workspace'
by vmars 29 Jul '09

29 Jul '09

in Squeak by example: Fig 1.14:'Using SqueakMap to install the Sokoban game'. It says, after installing this package, start up Sokoban by 'evaluating SokobanMorph random openInWorld in a workspace'. I have no idea 'how' to do this. Anyone? Thanks..vm -- View this message in context: http://www.nabble.com/%27evaluating-SokobanMorph-random-openInWorld-in-a-wo… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Beginners July 2009