Squeak-dev July 2002

squeak-dev@lists.squeakfoundation.org

205 participants
393 discussions

Re: New Random Number Generator
by Mark4Flies＠aol.com 01 Aug '02

01 Aug '02

<< Actually in this part I was suggesting that it might be a simple typo in the _smalltalk_ and that by comparing the results of the shifts & masks in C with those in Smalltalk you could probably find out something. >> Oh! Now I understand. All I can tell you is that I actually took the C code and pasted it, verbatim, into the first Smalltalk method. Since this stuff is mostly bit operations, I only had to replace C tokens like '^' with 'bitXOr:' and so on. This approach was an attempt to avoid typographical errors up front. Since then I have poured over the C and Smalltalk code in parallel and just can't find a single discrepency. Then again, the hardest task is to find fault in one's own work... << I'm just looking at making a little plugin of it and wondering which of the varieties of numbers one really wants. The C file I downloaded seems to offer:- array initialisation of seeds plain init of seeds 32 bit int result 0 to 16rFFFFFFFF 31 bit 0 to 16r7FFFFFFF three different reals, [0,1], [0,1), (0,1) and [0,1) 53 bit resolution. Obviously the simplest would be to drop everything but the plain init and 32 bit int result. One might reasonably cut it to 30bit positive SmallInteger results. >> I am new to the idea of plugins. I suspect that they are a mechanism to take a foreign code (like these C programs), in whole or in part, and encapsulate it with a Smalltalk interface. Yes? << What would be most useful? >> I really appreciate your help on this problem but I honestly do not have a clue how to answer this question. -Mark

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swiki sssslow
by Jason Dufair 31 Jul '02

31 Jul '02

I am also getting abominably slow access times at the minnow swiki. There appears to be some link to an mp3 on the main page, so people are undoubtedly messing with it again. What a shame. -- Jason Dufair - jase(a)dufair.org http://www.dufair.org/ "Being in politics is like being a football coach. You have to be smart enough to understand the game, and dumb enough to think it's important." -- Eugene McCarthy

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new some good apps for demo
by Sunjay Karan 31 Jul '02

31 Jul '02

i am new to squeak. I need some business apps or any other cools apps to show in my company. Can any body point to some good squeak apps. thanks

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Re: Minnow down?
by Ken Causey 31 Jul '02

31 Jul '02

Hmm, I'm starting to get something now. It's just REALLY slow, on the order minutes per request. Ken

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Minnow down?
by Ken Causey 31 Jul '02

31 Jul '02

Sorry, I believe there is another address for minnow support, but I can't seem to come up with it right now. I can't get any response from http://minnow.cc.gatech.edu (I'm coming from 205.229.226, just in case I've been firewalled?) Ken

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RE: Progrmaming in Bytecode?
by Swan, Dean 31 Jul '02

31 Jul '02

Me too. If you click on the "microlingua.swiki.net" it tries to go to the swiki site, but I get an error that says I do not have sufficient authorization. -Dean -----Original Message----- From: Ned Konz [mailto:ned@bike-nomad.com] Sent: Wednesday, July 31, 2002 4:17 PM To: squeak-dev(a)lists.squeakfoundation.org Subject: Re: Progrmaming in Bytecode? On Wednesday 31 July 2002 10:18 am, Aaron wrote: > On Wed, 31 Jul 2002, Michael Rueger wrote: > > Are you aware of the work Maurice Rabb did on developing a tiny > > smalltalk for micro controllers? He did a presentation at the > > Smalltalk Solutions, but I lost track of whether he is still > > working on it. > > I know everyone here is capable of Googling, but to see the slides > from the presentation, check out this link: > > http://www.whysmalltalk.com/Smalltalk_Solutions/Rabb%20-%20Smalltal >k%20on%20Tiny%20Real-Time%20Systems.htm > > As far as I know, it'll only work with IE on Windows. Didn't work > in opera- it wants to download some MS PowerPoint runtime. :/ I tried it in IE 5.5 windows and I only see the first slide. -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE

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RE: Hello... I'm back, did I miss anything?
by Brent Vukmer 31 Jul '02

31 Jul '02

>> We renamed Squeak to Jo-Jo, so now we have the usual group running >> Jo-Jo-Central. Great, now Chris Farley's "JoJo the Indian Circus Boy" bit is running in my head... "I'm like Jo-Jo, the Indian Circus boy with my pretty new pet .. oh my pretty little multimedia computing environment, I LOVE YOU! So I stroke it, and pet it, and I massaaaage it. Hee hee hee, I LOVE IT!" etc., etc.

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Hello... I'm back, did I miss anything?
by Scott A Crosby 31 Jul '02

31 Jul '02

Hello... I'm back after about 2 months. (moving sucks) Have I missed any messages that would be relevant to my earlier work? (fulltext index, new method cache, V4, Identity*** fixups)? Scott

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Re: A problem hindering SmallTalk's popularity:
by Richard A. O'Keefe 31 Jul '02

31 Jul '02

The radio button problem turns out to be a very educational one. Squeak has many of the traditional GUI widgets: lots of different kinds of buttons, lots of different kinds of menus, lots of different kinds of lists, lots of different kinds of text areas. This makes them not so good as educational examples, because you just use them. The fun of radio buttons is building them. Poking around a bit more with Morphic, I've started to wonder whether the rather large size of Morph might actually be _justified_, because there seems to be a highly relevant slogan: ANY MORPH CAN... Let's consider the abstract needs of a radio button group. * "container" - holds buttons so they can be moved as a group * "button" 1..n - has visibly different ON and OFF states - tells the co-ordinator when it is pressed * "co-ordinator" - holds the state (1..n) - tells buttons when to turn ON and OFF Now, ANY MORPH CAN... be a container. Just use addMorph{,Back}: or addAllMorphs: to add submorphs. ANY MORPH CAN... be a button. The visibly different states could be colours (easy as easy) or borders (plain/raised/bevelled/thick/thin) or even costumes. More to the point, whatever kind of Morph we choose for our buttons, the co-ordinator can tell the (i)th button: button on: #MouseDown send: #state:event:morph: to: self withValue: i and then when you click on the button, it will send coordinator state: (i) event: (mouseDownEvent) morph: (thisButton) and the coordinator will know what to do. We could say there's another Morphic slogan: YOU DON'T HAVE TO INHERIT TO BE RICH. After discovering on:send:to:withValue: last night, it took me another half hour to put together a three-class solution. RadioGroup, a new subclass of Object, acting as co-ordinator. EllipseMorph, the existing ellipse morph class, with no changes. I used the default yellow colour for off, red for on. AlignmentMorph, the existing alignment morph class, with no changes, as container. Unlike my previous example, this one could handle any number of buttons up to an arbitrary limit of 20, and could present them in a vertical or horizontal row. The only real weakness in this new version is that it doesn't handle labels; I tried stuffing a StringMorph in one of the EllipseMorphs and the alignment went crazy. I have no idea why. Doing it again, I might make RadioGroup a subclass of AlignmentMorph. The thing I particularly like about this solution is that there isn't the slightest need for the various buttons to be the same shape. If you want to select between various nibs for a pen, for example, the morphs used as buttons can be images of the nib. Then there are the Squeaky things you can do like indicate the active button by animating it, perhaps having it jog up and down gently, or rocking; and you can make the buttons make noises when they are pressed for audio feedback. If anyone has suitable animal pictures and sounds, a neat Morphic tutorial would be an "AnimalChooser" that put up a radio-button-group-like list of animal pictures, letting you choose any one, and making the appropriate sounds.

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[FIX] FileUrlFilePathFix-nk
by ned＠bike-nomad.com 31 Jul '02

31 Jul '02

from preamble: "Change Set: FileUrlFilePathFix-nk Date: 31 July 2002 Author: Ned Konz FileUrl>>pathForFile was omitting the leading separators on absolute pathnames. This CS fixes that problem. "!

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