Squeak-dev March 1999

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153 participants
338 discussions

pretty printing source code
by kpgrant＠mindspring.com 31 Mar '99

31 Mar '99

Is there a technique or goodie lurking about out there for getting printouts of source code in an easy-to-read format? Right now if I have a project with 20 new classes in it and I want a printout of all the code to refer to in discussion with someone (assume there is no machine with a squeak environment available) it seems I have to file out the code then print the file and work from that. All of the exclamation points, timestamps, etc... get a bit annoying after a while. I'm looking for something that would make the code look a bit cleaner and easier to read, the way it appears in the browser. Thanks, Kevin

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Has anyone built a vanilla VM on Mac from 2.3
by Tom Morgan 31 Mar '99

31 Mar '99

Has any one built a vanilla PPC VM on a Mac directly from the 2.3 image sources, using Code Warrior3.2 or newer? I just did that, in anticipation of some fiddling with the VM, and found 3 small items (1 and 3 may be related). 1. There is a reference to a constant, 'kCurrentFragArch' which doesn't seem to be in any of the header files. 2. There is an 'long' variable named 'junk' in the sound support file, which the compiler thinks should be 'unsigned long'. After making changes to the source support files with my fingers for these two items, I get a useable VM to link, but then: 3. The named plugin mechanism seems to have trouble finding the VM file itself as a plug in source. These could easily be my own clumsiness; if you've made a clean VM from the image sources, I'd appreciate advice or a copy of the project file that you used. ...Tom M -- +---Tom Morgan ------------------------------ (tmorgan(a)acm.org) -----+ I KeySpan Energy (Brooklyn Union) Phone: 1 718 403 2427 I I 1 MetroTech Center Fax: 1 718 488 1752 I +---Brooklyn, New York 11201 USA ------------------------------------+

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Pool Dictionaries going away in VW i5?
by Richard L. Peskin 31 Mar '99

31 Mar '99

Rumor has it that the i5 version of Visual Works is doing away with Pool DIsctionaries. What are the implication of this for Smalltalk code portability? --dick peskin ================================= R. L. Peskin, Rutgers Univ. ; <peskin(a)caip.rutgers.edu>; <http://www.caip.rutgers.edu/~peskin> VT Phone (802) 824-4558 NJ Phone (732) 445-4208 "The corporate culture is concerned less with Occam's razor than his aftershave lotion."

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Re: ANSI std Smalltalk?
by Glenn Krasner 30 Mar '99

30 Mar '99

Now that the Standard is published by ANSI, the committee is taking a break. There's interest in both fixing bugs in the current Standard and in making extensions, but so far this interest hasn't reached critical mass to get the committee going again. glenn At 01:45 PM 3/30/99 -0500, you wrote: >At one time there was an ANSI Standard Smalltalk working group. Anyone know >the status of this? >--dick peskin > > >================================= >R. L. Peskin, Rutgers Univ. ; <peskin(a)caip.rutgers.edu>; ><http://www.caip.rutgers.edu/~peskin> >VT Phone (802) 824-4558 NJ Phone (732) 445-4208 >"The corporate culture is concerned less with Occam's razor than his >aftershave lotion." > > >

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Re: Merging our Media Types
by Lex Spoon 30 Mar '99

30 Mar '99

Mark Guzdial <guzdial(a)cc.gatech.edu> wrote: > > I'm considering creating some kind of MediaType class that can be > associated with file types and provide functionality for these various > situations. I don't think it's enough to just do MIME, though MIME is a > good subset or starting set. The problem is that we're also inventing new > media types (like SqueakyPages), so I think we need a more flexible system. > > Comments? Is somebody doing something like this already? > Standardization here would be nice! There are two databases along these lines that seem to make sense: 1. one mapping file extensions into a MIME-like type, ie "gif" --> "image/gif" 2. one mapping MIME-like types into functionality. For instance, how do you deal with a GIF file? For the first, "MIMEDocument guessTypeFromName: aString" seems like a pretty good interface. It's central, it asks exactly the question that is needed, and it isn't tied to any particular application. It's lacking, however, a way for people to add new types by using a changeset. For the second database, there is nothing in the image right now. However, it's also not so clear-cut exactly what this should do. Is it even possible to define "functionality" which would be usable by both the file lister and a web browser? How do you deal with ".cs" files, for instance? Finally, one comment: MIME already does allow experimental types which start with "x-". In fact, audio/x-midi was in use for a long time before audio/midi became standardized. So it seems like we could use things like x-squeak/x-squeakpage and thus stay with MIME proper, if we want. Lex

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[FIX] MenuMorph>>popUpAt:forHand:
by Leandro Caniglia 30 Mar '99

30 Mar '99

The method of the subject assumes that #items answers a non empty collection. But the assumption might be not true in some unusual circumstances. For an example, try menu/windows.../find window... when there are no windows in the current project (I said that it was unusual ;-). Here is a simple fix. Leandro Content-Type: application/octet-stream; name="MenuMorph-popUpAtforHand.st" Content-Disposition: attachment; filename="MenuMorph-popUpAtforHand.st" Attachment converted: Anon:MenuMorph-popUpAtforHand.st (????/----) (00007CEA)

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Preliminary Bug Report - LinearFit displayOn:transformation:clippingBox:rule:fillColor:
by John-Reed Maffeo 30 Mar '99

30 Mar '99

Late last night I was working on some code that is using the LinearFit subclass of Path. There seems to be a bug in the method displayOn:transformation:clippingBox:rule:fillColor: I have not characterized the problem completely, but it seems to be connected with the creation of newLinearFit; it's instance variable - collectionOfPoints contains a Path instead of an OrderedCollection. I will try to fix this bug over the next few days, but I thought I would pass this on to the list in case it is already known and someone else is working/fixed it. Best Regards, John-Reed Maffeo Mesa, Arizona

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How to deal with changes in SmartRefStreams
by Mark Guzdial 30 Mar '99

30 Mar '99

I've found that if you read any of the SqueakyPages on http://minnow.cc.gatech.edu/squeakpages.1 with an updated Squeak 2.3, you get loads of errors. "UpdatingStringMorph has been changed" then "ClockMorph" has been changed, then... On most of them, simply clicking the forward page button once gets you to the page you want, but not all of them. We're finding similar problems on our SqueakyPages + Swiki project (MuSwiki). One of us playing with MuSwiki using an old image dragged something onto the front page, now no one can read the front page in a newer image without trying to invent a conversion method. While I do understand that backward compatibility is a pink plane issue, this is going to be a problem for those of us trying to use SqueakyPages and the like in groups or in experiments, at least in the short term with rapidly changing code bases. Our current solution is to make sure that everyone has the exact same image, but I'd like to find a more flexible solution. Some that I'm considering and would like comments on: - Is there some kind of default behavior for SmartRefStream that we can define so that there's an option NOT to provide a conversion method? - What about setting up an update server of some kind that can provide automatic conversion methods? (It's certain that you already have a network connection created if you're using MuSwikis or SqueakyPages that have incompatible content :-) - Can we shift the burden to the author, somehow? "That object that you're now adding has been changed since the last version. Please provide a conversion method for older images." Or maybe to the developer of new objects? Thanks for any suggestions! Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 (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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Merging our Media Types
by Mark Guzdial 30 Mar '99

30 Mar '99

There are at least three places in the current Squeak image where we deal with the types of media files: - In FileLists, so that the fileSelected menu can be smart about what options to offer you. - In Scamper, so that clicking on a link does the right thing. - In PWS, so that the server returns the right MIME type for a returned file. Perhaps this is two too many? :-) As I'm merging in various folks' code (in PWS, in images for my class, etc.), I'm fighting file type handling conflicts. The FileList>>itemsForFileEnding: method has six versions in the new image I just set up for my class! I'm considering creating some kind of MediaType class that can be associated with file types and provide functionality for these various situations. I don't think it's enough to just do MIME, though MIME is a good subset or starting set. The problem is that we're also inventing new media types (like SqueakyPages), so I think we need a more flexible system. Comments? Is somebody doing something like this already? Thanks! Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 (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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Browser alternatives
by Bob Arning 30 Mar '99

30 Mar '99

If you want to try something a bit different in browsing, check out: http://www.charm.net/~arning/BobsBrowser.txt Note: the more you like categories, the less you may like my offering. Cheers, Bob

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