Squeak-dev September 2000

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115 participants
411 discussions

RE: Any Squeakers at NetObjectDays Erfurt?
by Torsten.Bergmann＠phaidros.com 28 Sep '00

28 Sep '00

>Hi, >I know that there are some Squeakers (including Alan Kay as an invited >speaker) at NetObjectDays in Erfurt. Since I can only manage to be there >on the evening of 11th and whole day 12th, I'd like to know who'll be >there during that time. Agreeing on a nice place to drink some beer on >the 11th would also be great! >So if you're there during that time, just give me a note! > >Hans-Martin <hmm(a)heeg.de> I will attend the conference from Monday to Friday. The GSUG arranges a Smalltalk evening on monday (9th) including a presentation and discussion. David Simmons from QKS will speak about Smalltalk and .NET. We have reserved in a restaurant for having a late-night smalltalk. (BTW: Last year we had a Squeak presentation given by Andreas, it was great) I'm sure we will also meet some other squeakers and Smalltalkers on Wednesday. We could fix some bugs, share code and ideas, or show squeak to interested people. Maybe Alan will join us too. Some people from our company grew up in Erfurt, so it should be no problem to find a nice place for a beer. Simply ask for me at the booth of Phaidros AG. Bye Torsten

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TrueType on a Mac in Squeak
by David N. Smith (IBM) 28 Sep '00

28 Sep '00

Hi: I've been trying to get the true type support to work on a Mac but no luck. Some weeks ago someone else asked the same question and got a solution that worked. I tried to the same thing (copy the font out of the suitcase) but I still get a failure. The person that had the success is currently up to his ears in a project and doesn't remember the details. Does anyone else know how to make it work, and could they post an example? Thanks in advance! Dave _______________________________ David N. Smith IBM T J Watson Research Center Hawthorne, NY _______________________________ Any opinions or recommendations herein are those of the author and not of his employer.

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2.9 shift & option keys fail?
by David N. Smith (IBM) 28 Sep '00

28 Sep '00

Hi: I just did a complete update from virgin 2.8 files to 2.9 update 2710. I used the 2.9 Alpha1 VM. Prior to updating, the shift and option keys seem to work fine. Afterwards it looks like the modifier keys are being ignored. Opt-D replaces selected text with a lowercase d, and Shift-S produces nothing. This is the second time I've updated. The first included all files but the latest big batch. The problem was not present there (though it had the yellow resize circle needing an extra click bug). I then updated that and it had the same problem. I then started from scratch, figuring I'd missed an update somehow, but I still cannot do a DoIt or type 'Squeak'. Has anyone else seen this? I've tried to load the latest batch in a project with a browser, transcript, and workspace but I get a walkback dribbled across the top left of the screen, seemingly from trying to write to the transcript. (See below.) I have to run in an empty morphic project to get things to load at all. There were no errors reported interactively, but some might have gone into the Transcript. No one else has reported this so it's probable that I'm doing something odd... Oh yeah: Mac PowerBook G3, MacOS 9.0.4, 36meg for Squeak, ... Dave 28 September 2000 2:08:38 pm MessageNotUnderstood: recordDamagedRect: WorldState(Object)>>doesNotUnderstand: PasteUpMorph>>invalidRect: SystemWindow(Morph)>>invalidRect: PluggableTextMorph(Morph)>>invalidRect: TransformMorph(Morph)>>invalidRect: TransformMorph>>invalidRect: TextMorphForEditView(Morph)>>invalidRect: [] in TextMorphForEditView(TextMorph)>>selectionChanged Array(SequenceableCollection)>>do: TextMorphForEditView(TextMorph)>>selectionChanged TextMorphForEditView(TextMorph)>>handleEdit: PluggableTextMorph>>handleEdit: PluggableTextMorph>>update: [] in TranscriptStream(Object)>>changed: Array(SequenceableCollection)>>do: TranscriptStream(Object)>>changed: TranscriptStream>>endEntry TranscriptStream>>show: [] in HTTPSocket class>>httpGetDocument:args:accept:request: SmallInteger(Integer)>>timesRepeat: HTTPSocket class>>httpGetDocument:args:accept:request: HTTPSocket class>>httpGetDocument:args:accept: HTTPSocket class>>httpGet:args:accept: HTTPSocket class>>httpGet:accept: [] in Utilities class>>retrieveUrls:ontoQueue:withWaitSema: OrderedCollection>>do: [] in Utilities class>>retrieveUrls:ontoQueue:withWaitSema: [] in BlockContext>>newProcess _______________________________ David N. Smith IBM T J Watson Research Center Hawthorne, NY _______________________________ Any opinions or recommendations herein are those of the author and not of his employer.

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Unidentified subject!
by raymondasselin＠sympatico.ca 28 Sep '00

28 Sep '00

RGA 9/28/2000 13:32From: raymondasselin(a)sympatico.ca Subject: Re: Updates To: squeak(a)cs.uiuc.edu CC: <squeak(a)cs.uiuc.edu> William Barnett-Lewis <wlewis(a)mailbag.com> wrote: Hi William > Uhm. It _has_ been awhile since I had time to do much, so I went and dl'd > the completely updated image and current beta VM. I find that (on my Mac) I > can not drag and drop the Image onto the VM. Is this common or did I screw > up along the way? > > Thanks! > > William This seems common if you use the 'Test release' because the file Type and file Creator is'nt set up. If you know how to set it up on your Mac (with the appropriate software as FileBudy) the creator is 'FAST' and the Type changes for different file as: file TYPE for image = 'STim' file TYPE for sources = 'STso' file TYPE for changes = 'STch' I write this at my job on a Windows platform and this from "memory" but I thing it is OK.

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Nonpreemptive Processes???
by jchludzinski＠worldkey.net 28 Sep '00

28 Sep '00

I take it that if I don't insert a Delay into a Process executing an infinite loop, it will hang Squeak - that is, Processes within Squeak are nonpreemptive (unlike a pthreads or an NT-threads). Is a Delay the ONLY solution? ---John

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RE: Nonpreemptive Processes???
by Raab, Andreas 28 Sep '00

28 Sep '00

> Processes are not preemptive *at the same priority*. A higher > priority process will preempt a lower one when whatever the > higher one was waiting on (a Semaphore) becomes ready. So > some choices: > > - To share time between equal priority processes, use > 'Processor yield' from time to time Alternatively, put up one high priority process that does nothing but: | delay | delay := Delay forMilliseconds: 50. [true] whileTrue:[delay wait]. Since the scheduler activates the processes in order all processes at the same priority will get a chance to run for 50msecs each. [note: the above seems to be a bit expensive but process switches are rather cheap]. - Andreas

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[BUG] TextOnCurve doesn't work with centered or right alignment
by Ned Konz 28 Sep '00

28 Sep '00

I've been trying to use embedded Text morphs to label lines. But they don't work right if I want them centered or right justified. To demonstrate: * make a PolygonMorph (perhaps open, so it's a line) * embed a TextMorph in it * tell the TextMorph to "follow owner's curve" * Choose "centered" alignment for the TextMorph Some or all the text disappears. Stretch the line out and see what happens. The problem seems to be that the text doesn't use the width of its owner as the width to justify within. -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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[Enh] Some EToy Toys for sounds and animations
by Mark Guzdial 28 Sep '00

28 Sep '00

Attached are three toys for EToys: - Snapshot adds a viewer command that makes a SketchMorph snapshot of self. That makes it easier to make holder-based animations. - GraphSoundTilingPlay adds some commands to the Graph to load a sine wave at a given frequency for playing through a SpeakerMorph. - SketchAndSoundMorph provides a "frame" to contain both a SketchMorph and a SoundTile, which, when referenced in a holder via valueAtCursor, plays the sound and returns the sketch. The result is the ability to have holder animations that make sounds at specific frames. Developed and tested with 2.8. Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 Associate Professor - Learning Sciences & Technologies. Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/ (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

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TGen in 2.9a?
by Mark Guzdial 28 Sep '00

28 Sep '00

Has anyone got TGen to work in 2.9a? I was trying to load up the ray-tracing language GML into 2.9a (using the tgen at http://calliso.swiki.net), but I kept getting some really severe crashes ("Hit any key to restart"). Then I took a fresh 2.9a image, loaded all updates, then tried again from MVC. I kept getting that Object did not understand variableSubclass... to create classes like Grammar. I backed down to a 2.8 image and had no problem. Perhaps it's just something I'm doing? Have others had more success? Since Bob Arning had no problem loading my Wonderland-in-a-Project file, and then I was able to do after, too, maybe I have a black thumb when it comes to Squeak these days... Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 Associate Professor - Learning Sciences & Technologies. Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/ (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

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Re: Updates
by Bruce ONeel 28 Sep '00

28 Sep '00

Hi, This is the right way to fix the problem, thanks Bob. The problem happens if you grap the 2.9 alpha .image/.changes on the ftp site because it's a .zip file which doesn't preserve the mac file types. What happens depends on what you unzip it with and what the mappings for .image are in, most likely, internet config. On my machine it thinks it's a disk copy image. If a lot of people want I could also upload the .sit file since I already produce that to keep around to speed up the next set of updates. cheers bruce Bob Arning <arning(a)charm.net> wrote: > On Wed, 27 Sep 2000 22:05:39 -0500 William Barnett-Lewis <wlewis(a)mailbag.com> wrote: > >Uhm. It _has_ been awhile since I had time to do much, so I went and dl'd > >the completely updated image and current beta VM. I find that (on my Mac) I > >can not drag and drop the Image onto the VM. Is this common or did I screw > >up along the way? > > William, > > They seem to come that way more often that not these days. Use ResEdit or somesuch to change the image's type to 'STim' and creator to 'FAST'. > > Cheers, > Bob

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