Squeak-dev January 2006

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300 discussions

REMINDER: Squeak Chat Sunday January 29th 20:00 GMT
by Ken Causey 28 Jan '06

28 Jan '06

Just a reminder that the next Squeak Chat will take place between 20:00 (8 PM) GMT Sunday January 29th and 00:00 (Midnight) GMT Monday January 30th, 2006. As usual we will meet in #squeak on irc.freenode.net. More information about the #squeak IRC channel can be found at http://people.squeakfoundation.org/article/7.html This is a good time to contribute to the development of Squeak by participating in the Harvesting Process. One of the main ways to contribute is by Reviewing submitted fixes and enhancements. For information about the Harvesting Process see http://minnow.cc.gatech.edu/squeak/3152 If you have the time please attend and work toward the future of Squeak. The next seven chats are scheduled for 00:00 (12:00 AM) GMT Friday February 03, 2006 04:00 (04:00 AM) GMT Tuesday February 07, 2006 08:00 (08:00 AM) GMT Saturday February 11, 2006 12:00 (12:00 PM) GMT Wednesday February 15, 2006 16:00 (04:00 PM) GMT Sunday February 19, 2006 20:00 (08:00 PM) GMT Thursday February 23, 2006 00:00 (12:00 AM) GMT Tuesday February 28, 2006

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looking for table morph
by Martin Kuball 28 Jan '06

28 Jan '06

Hi! Is there a ready to use table morph available? Something you can instantiate and add a 2-dimensional array of strings and be done. Of cause user-resizable columns, sorting and in-place editing would come in handy. Martin

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Re: Croquet big project tender
by José L. Redrejo Rodríguez 28 Jan '06

28 Jan '06

Some aclarations and corrections about this information: I was in the first stages of this project, but I haven't being in contact with it in the last months, that's why I have made a mistake: The project is going to be for the virtual museum that is suppossed to be made in Croquet, but it is not the virtual museum. It is for doing 100 interactive units to be used in the future for the museum, but today, for this tender, is to be compatible with the small-land 3.8 squeak image (basically a 3.8 beta image with a good bunch of improvements in the user interface made by Diego Gómez Deck), available at http://squeak.linex.org/W32/Squeak38-SmallLand-Imagen-1226.zip . So Croquet is not needed in the stage that has been published for this tender. The units are related to physics, maths, nature, art and technology. The units must works perfectly on our Linux distribution: gnuLinEx, that is like saying it has to work on Debian. And, about the information in the UE journal, there is a couple of typo errors there. The mail contact is julia.duran(a)juntaextremadura.net and not julla.duran(a)juntaextremadura.net and the web page with all the information in spanish is http://www.juntaex.es/consejerias/idt/sg/contratacionag.html and not http://www.juntaex.es/consejerias/ldt/sg/contratacionag.html It seems somebody has read 'l' where it should be and 'i', for both texts. That's all. Cheers. > On 1/26/06, José L. Redrejo Rodríguez <jredrejo(a)edu.juntaextremadura.net> wrote: > > Hi, all, > > the Technology ministry of Extremadura (my region in the southwest of > > Spain), has published a tender to make a "Virtual science museum" using > > Croquet. It is open to any european company, so maybe it is attractive > > for some of you or your working companies. > > The information can be seen at the Official Jouranl of the European > > Union. > > It is the Document 2006-11132, and you can read it at any of the > > official european languages (but the final documentation has to be > > presented in spanish). It is a good amount of money: 470,000.00 euros, > > so I think it is an atractive project. > > > > http://ted.publications.eu.int > > and search for Merida. Between the results, it is the 2006-11132 > > document. > > > > Regards.

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Re:Do you think that squeak is long overdue for a Refactoring only pass.
by Peace Jerome 27 Jan '06

27 Jan '06

Do you think that squeak is long overdue for a Refactoring only pass. Hi Stef, Cees and Others interested in this. Some great feedback. Summary, Refactoring would be good. Doing it in 3.9 would not get it the proper energy. There is a conflict about whether to refactor with traits. Withdrawing from supporting Etoys needs to be thought about. ---- My reaction: Version numbers are cheap. 3.9, 3.10, 3.11, 3.12, can be had for a dime a dozen. Its patience that's dear. All things can be done incrementally. Seeing a traits refactoring would be interesting as an experiment and risky to the development enviornment. I would like to have a good refactored smalltalk version to launch a traits refactoring from. The former won't slow down the latter it would probably make it easier and cleaner. At the end point of the traits refactor increment we will have more info about our pleasure with using traits. Which is why it is a good experiment. A decision to keep it or revert back could be better made at that time. We will not save anything by not making the experiment. Then we pick a version to make bug fixes to. And then we go back to expanding again. The crews to do the first refactoring and the second traits refactoring should be different. And I don't think the feature lovers of 3.9 should head the effort to just reorganize things. We have to find someone with the enthusiasm for that task. Ditto for the traits refactoring though I can hear the energy for that in the list already. What will happen to Etoys? I heard a recent speech of Alans which made his strategy clear. You don't need to convince the adults. If you sell your idea to children and just wait you will eventually have enough adults on your side. And you sell to children by making things a 'toy' or a 'game'. The concept (not the implementaion) of etoys is important to the future of squeak because adults are important to the future of squeak and the future adults are children now. The MIT scratch project will release something this spring. And it seems to me that more thought must be given to the needs, desires, and motivation of the squeakland community. As I listen to what I hear on squeakdev I get the sense that they are "strangers" to us now. Why is this? How did it come about? Even if we are to go our separate ways we need to know why. Patience and curiosity will bring us information. Information will beget knowledge. And knowledge will guide us. A suivre Yours in service -- Jerome Peace __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Survey finally published etc
by goran＠krampe.se 27 Jan '06

27 Jan '06

Hi all! As you are aware the time for me on the board is running out quickly and the election is coming up. I have a guilty conscience about one thing that I really need to clear before stepping off the board, and that is the survey to the Stakeholder contacts I sent out on 2005-09-09. I have now (finally) gathered up and published the survey and the results on the old castaways swiki (wherever, we can move it). Only 4 months late... sigh: http://swiki.krampe.se/castaways/26 As you can see only Stephane, Yoshiki, Craig, Dan (through Craig) and Scott responded. Avi responded that he was working on it but got stuck due to thoughts about how to draw the line between personal opinions and community representation - and then I assume he simply forgot about it. We got no replies (and I sent out at least two reminders) from Andreas, Steve, Diego or Jeff. John responded that he had no time. I would also like to note that one of the two reminders was badly formulated by me, and Avi set me duly straight (and I apologized carefully), and one could also question the short timeframe for answering. Finally a very, very personal comment on this: I think it was a disappointing result. Not the answers that came in, but the lack of responses. One reason for me not publishing this at the time is of course also the lack of responses, but that is not an excuse - I should have published it anyway. One other thing I would like noted is that Andreas explicitly did not "acknowledge" the Coordinators-group in any way when we contacted him as a contact person for Croquet and Tweak, but he took the role anyway as an "envoy". I would only assume that goes for the current board too (after the merge with Stephane and Noury). So personally, when I read the recent posts about decision processes etc, I do it in the light of the above - with a tired ironic smile on my face. regards, Göran

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Some more newb questions
by Rich 27 Jan '06

27 Jan '06

1. Is there a keyboard shortcut that goes directly to the "open..." menu? 2. In a previous message on this list, someone informed me that when code is executed in the Workspace, it is compiled as the doIt method of UndefinedObject. Is there any particular reason why it is executed in this fashion? Thanks alot. -Rich

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Re: Using CurveMorph for building a jigsaw puzzle
by Peace Jerome 27 Jan '06

27 Jan '06

Hi Edgar I am thrilled to hear you've put my curves in squeak lite. Feels good to have all that work put to use. After my last email I tryed your rompacabazas again in 3.9 . No problem opening the .sar and loading the program. The jpeg reader/writer is broken right now in 3.9. So I changed the file extention to read in .gifs; wrote out a few exported images (It complained until I wrote out more than 5) and then it WORKED. Cool. Notes: A ruler with an embedded clockMorph made a reasonable picture for a puzzle. The ruler let me set things to the right size. And I grew the clock until it filled its container. You also need the other fix. Reverting to an earlier Morph>>releaseCachedState so that polygons get rejected properly. Other than that it worked mostly as expected. I didn't look inside yet. I'll probably wait till next version. Cheers and joy, -- Jerome Peace __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Squeak, gumstix, robots, and SmartRefStreams
by Jon Hylands 27 Jan '06

27 Jan '06

Hi everyone, I'm working on getting my new autonomous controller code working on the gumstix (see http://www.huv.com/roboMagellan) Currently, I save my mission object from my mission editor using a SmartRefStream, like this: file := SmartRefStream newFileNamed: 'missions\', mission name, '.obj'. file nextPut: mission. file close. The mission editor runs on Windows XP, on my laptop, in a Squeak 3.7 full image. I copy the mission file over to the gumstix, and I read the mission from a headless image (Squeak 3.7 basic image, not stripped in any way) on the gumstix, which runs Linux. I wrote a simple routine that loads my sample mission, and dumps information about it to a text file. On my laptop, when I run this, I get the following: Name: Straight Line Test 01 Goal: (Start navigator: (Startup Navigator (AvLocation (Start - {50.00 @ 30.00})) ) subGoals: ()) Goal: (Follow Path navigator: (Waypoint Navigator (2 waypoints) ) subGoals: ()) Goal: (Stop navigator: (Shutdown Navigator) subGoals: ()) On the gumstix, I get the following: Name: Straight Line Test 01 Goal: (Start navigator: (Startup Navigator (AvLocation (Start - {0.00 @ 0.00})) ) subGoals: ()) Goal: (Follow Path navigator: (Waypoint Navigator (2 waypoints) ) subGoals: ()) Goal: (Stop navigator: (Shutdown Navigator) subGoals: ()) Note, the only difference is the Start location is 0.0 @ 0.0, instead of 50.0 @ 30.0. Any ideas? Thanks, Jon -------------------------------------------------------------- Jon Hylands Jon(a)huv.com http://www.huv.com/jon Project: Micro Seeker (Micro Autonomous Underwater Vehicle) http://www.huv.com

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Evilness object oriented approach in Morph
by Hilaire Fernandes 27 Jan '06

27 Jan '06

I have realized that many of the Morph method does not use instance variable accessor but direct access to the instance variable. One may think this improve the efficiency of the method but in the other hand its downgrade (or just break) the oriented object efficiency of thus objets. Is refactoring the code of the Moprh methods something to be considered? Hilaire

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Re: Croquet big project tender
by Nicholas Bennett 26 Jan '06

26 Jan '06

I would be interested in contributing. I pulled the 'technical' tender doc from: http://ted.publications.eu.int/official/Exec?DataFlow=N_list_results.dfl&Te… My spanish is rudimentary but I think some salient points re the tender are: - tender due 9 march 06 in spanish - they want 100 interactive units for the 'difusion of science' - exposition/demo/simulation - they have a list of about 50 points that must be hit - for the tender they want documentation of each of the 100 'units'. - the documentation of a unit should consist of a description, a functional analysis, a technical analysis, and a pedagogical analysis, maybe even a proof of concept / demo - I'm not sure when they want delivery, but I get the impression (maybe wrong) that they would pay post delivery of all 100 units. I can contribute to the tender doc and by design and build of units. I have worked in smalltalk and used squeak on and off over some years. regards, nicholas >From: Cees De Groot <cdegroot(a)gmail.com> >Reply-To: The general-purpose Squeak developers >list<squeak-dev(a)lists.squeakfoundation.org> >To: The general-purpose Squeak developers >list<squeak-dev(a)lists.squeakfoundation.org> >Subject: Re: Croquet big project tender >Date: Thu, 26 Jan 2006 16:03:09 +0100 > >If anyone is interested in joining up to form a small consortium to >bid on this project, I would be all ears... >

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