Beginners February 2008

beginners@lists.squeakfoundation.org

56 participants
54 discussions

Arithmetic operators
by Jakub 10 Feb '08

10 Feb '08

Hello, i have one beginners problem: pomPrice := (item value / 100) * item price. Transcript show: 'Price is: '; show: pomPrice; cr. result: Price is: (1999/20) item value is 5 item price is 1999 but i need value = number :) thnx -- Jakub.

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Funny Thing, Starmorph goes to trash. (from Getting a handle ... various flaps thread)
by Jerome Peace 10 Feb '08

10 Feb '08

Funny Thing, Starmorph goes to trash. (from Getting a handle ... various flaps thread) [Newbies] Getting a handle on objects which are instantiated through the various flaps Herbert König herbertkoenig at gmx.net Fri Feb 8 14:27:00 UTC 2008 *** >Funny thing, if I use a StarMorph the reference is created but the >Star goes to the trash! > >I tried this in 3.8, it maybe better or worse in younger images. *** This is a known bug and has been fixed in more recent 3.8 It affects all polygons and curves and star is a polygon. The fix is in a Mantis report: http://bugs.squeak.org/view.php?id=2512 . Yours in service and curiosity, --Jerome Peace ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

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Getting a handle on objects which are instantiated through the various flaps
by Andy Burnett 09 Feb '08

09 Feb '08

I imagine the answer to this is going to be pretty obvious. However... ;-) When I pull an object from a flap onto the desktop, how can I get a handle on it so that I can send it messages programmatically? What I am hoping is that I could drag e.g. the bouncing atom thing into a project, and then - in a workspace? - be able to send it messages. Or, if this is completely the wrong approach, how else might I be able to play with an object instantiated in this way. Thanks AB

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How do you start to understand a new Squeak 'program'?
by Andy Burnett 09 Feb '08

09 Feb '08

As my next step in learning Squeak, I thought I would try to enhance the EToy Outliner widget. However, as soon as I started to do this I realised that I didn't really know how to 'grok' the code. So, when the experts in this list, are faced with a new application, how do you go about understanding it? Do you draw out object diagrams, open lots of source browsers, or do other clever things? The reason I am asking is that, at the moment, I find that I am jumping around the system browser looking up all sorts of objects/methods etc., in what feels like a very disorganised way, trying to piece together what actually happens. I am sure there must be a better way to tackle this. Also, I don't really understand how to trace a Squeak application. I imagine I could put lots of 'Transcript show:'s into the code, but again, I feel there must be a better way. Is it possible to run the code in debug mode? Thanks for any advice you guys can offer Cheers AB

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Re: Debugging Squeak
by Jerome Peace 08 Feb '08

08 Feb '08

[Newbies] Debugging Squeak Hi Mr Chang, There is another way to recover. What you have done so have others before you. Squeak is prone to being used in ways that cause it to crash. (It lets you do anything). The fall back is to go back to a fresh image. And to recover the desirable part of your work from the .changes file. In the image that crashes there is a (large ?) companion file with the same name and .changes at the end. This is a log of the significant things you did to change your image. It will contain the text of all your modifications and more. Get a text editor able to handle large files. Search to where you began to make your changes. I have found the name of my harddrive a good search word to use to skip past previous entries. Or you can go to the end of the file and page backward as far as necessary. It will probably be a good idea to isolate your changes by copying them to a smaller file and then working with that. Big files usually slow down editors. Then the job is hunting out what you want to keep from what you don't. Copy and reenter those to your fresh image. Then use saveAs... to create your working copy of your freshly recreated work. Test it for robustness and if it seems like its good use saveAs... again to create a current working copy. You now have a fresh image; a backup image with your recreated work; and a crashable working image. Whenever you've made significant progess in your project create a backup to fall back upon. Then proceed. Learn how to save change sets and projects. These can also allow you to recreate our work in a fresh image w/o the need to dive into the changes file. You can always file out nearly anything as a snippet of code. Frequent fileoouts of significant developments is the easiest way to protect yourself w/o too much work or disk storage capacity. *** >K Chang alongtheridge at gmail.com >Fri Feb 1 01:04:40 UTC 2008 > > I tried that out,but the system is too busy to show up the "Show CPU >usage".Guess what I did was so evil for the system that it won't respond. > Thank you anyway. > > >2008/1/31, Michael van der Gulik <mikevdg at gmail.com>: >> >> >> >> On Jan 31, 2008 3:46 PM, K Chang <alongtheridge at gmail.com> wrote: >> >> > Hi, >> > I was trying to make some modifications on Squeak. >> > After some coding work,I found my Squeak now consumes almost 95% CPU >> > time and more than 100M mem, and it seems like it won't slow down unless i >> > close it. I've already saved the image and the CPU consuming problem comes >> > out right after starting Squeak with out running any code I wrote, >> > my question is, is there any debugging tools that i could find out which >> > process or chunk of code is slowing down my squeak ? I've tried >> > MessageTally,didn't work. >> > >> >> >> Open up the process browser and enable the options "Show CPU usage" and >> "Auto update". I can't remember exactly what all the names are, but you >> should be able to work it out. This shows you which process is using all the >> CPU, and you can suspend it, debug it or terminate it. >> >> *** ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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please remove
by cgentry＠mchsi.com 06 Feb '08

06 Feb '08

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Squeak Foundation Election 2008 coming up!
by Richard Karpinski 05 Feb '08

05 Feb '08

Maybe everybody knows, but could you summarize the duties and the activities of board members so that people could tell easily whether this would be an honor they would like to carry for a year? For example, does board membership require or encourage international travel or other activities involving serious time and financial commitments? And what effect do board decisions have, anyway? Dick Karpinski, a definite non-candidate On 2008, Feb 5, , at 4:00, beginners- request(a)lists.squeakfoundation.org wrote: > A year has passed (oh, so quickly) and it is time to reflect a bit and > ramp up your democratic rights here in Squeak country! Every year we > elect the Squeakfoundation Board (http://www.squeak.org/Foundation) > consisting of seven members from our community.

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[ANN] Squeak Foundation Election 2008 coming up!
by goran＠krampe.se 04 Feb '08

04 Feb '08

(Ron beat me to it :) but this one is official) Dear Squeakers, A year has passed (oh, so quickly) and it is time to reflect a bit and ramp up your democratic rights here in Squeak country! Every year we elect the Squeakfoundation Board (http://www.squeak.org/Foundation) consisting of seven members from our community. This year I have stepped up as the election leader of 2008 relieving Daniel Vainsencher of this duty (thank you Daniel for earlier elections!) and hope to lead us through it without too many problems - after all, we know how this works by now. :) The schedule and process is as follows, only slightly adjusted from earlier years: Now through 22nd February (circa 18 days): Nominations of board members Candidates should nominate themselves on the squeak-dev mailing list. Or if you nominate someone else, make sure that person really wants to run. :) 22nd February to 29th February: Campaigning period During this period the candidates should ideally present themselves and the community can ask questions. We will probably organise some form of structured Q&A activity - details to follow soon. 1st march 6PM (18.00) UTC: Online election starts using the CIVS system The voting period is one week long and ballots are sent out via email. Only Squeakers rated as Apprentice (or higher) on people.squeakfoundation.org are eligible to vote - make sure your email address is up to date there!!! 8th march 6PM (18.00) UTC: Online election ends Results will be announced as soon as possible on the 8th or 9th. IMPORTANT: In order to vote - be sure to confirm that you have an account on people.squeakfoundation.org and that your email address is up to date. If you are not already registered on the site do so as soon as possible. Include information about your participation in the Squeak community to aid everyone in determining your appropriate certification. If you have an account but cannot access it any longer please email box-admins(a)lists.squeakfoundation.org and specify your account name. When the voting period starts all voters will receive an email with instructions and a link to the voting website. If there are any further questions, just reply and I will follow up on squeak-dev. More information and details will follow and everything about the election can be tracked here: http://wiki.squeak.org/squeak/6025 regards, Göran Krampe on behalf of the Election Team

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Developer initials in SqueakMap versus SqueakSource versus my image
by Ben Goetter 03 Feb '08

03 Feb '08

Folks, I'm starting a Squeak-based project. Per directions on the wiki and elsewhere, I created an account on SqueakMap. As my initials have already been claimed by another user, I used my surname (7 letters) as a userid, setting the developer initials in my image to the same value. Then I attempted to create a parallel account on SqueakSource. On SqueakSource, however, there is a 5-character limit (enforced in the site's registration form) on a member's initials. So I ask: - Is it important that SqueakSource initials match those in my image and on SqueakMap? - If so, should I delete my SqueakMap account and start over there with a shorter nick? - Or should I ask the SqueakSource admins to increase the size of the initials field? - Does my choice of "initials" on either matter at all? Thanks for any advice, Ben

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{OT} About SqueakRos
by Edgar J. De Cleene 03 Feb '08

03 Feb '08

As SqueakRos is showing in some mails, seems fair tell about us. All begins with students of UTN (state) and UAI (private) university. Here state and private university is like water and oil. So I try to see if some people of both could meet in a bar and start to learn Squeak. In 2002 Martin Altobello begins http://ar.groups.yahoo.com/group/squeakRos/ The group eventually grow and people of Extremadura , Spain host http://wiki.gnulinex.org/squeakros/ from 2004. Now we have 150 members around of world. This continue being a bar / café group where all subjects are welcomed , nobody censor subjects and Squeak is only a most talked theme. But I always said to my students life is not only Squeak. We like cultural subjects. Doing jokes all time. Showing we in Argentina prefer being young , beautiful, wealthy and have fun. >From time to time exchange tricks, give advice to each other. So if you like talk futbol, movies, bikes, women / man , blame politicians, etc are welcomed. Only catch is most is in Spanish, but several understand English and could answer questions. And if you think you do all in life and wish a really exotic vacations come to Rosario, Argentina. Edgar

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Beginners February 2008