Squeak-dev July 1998

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80 participants
111 discussions

Proposed tweaks to the Mac OS Squeak VM
by Stephen C. Gilardi 14 Jul '98

14 Jul '98

Dear Squeak List, I thought Squeak was cool even before seeing the Morphic worlds. Now I think it's extremely cool! As a long time Mac user, it seemed a shame to me that the Mac OS Squeak VM wasn't cosmetically pretty as a Mac OS application. So, this weekend I set out to add: - Icons for Squeak and its image files, and - An About box for Squeak. I also decided to compile it using the latest CodeWarrior environment--CW Pro 3. I accomplished these goals. I also made a couple of tweaks to the full screen support. I'd be pleased if the Squeak team would consider including any or all of these changes in a future release of the Mac OS source for the Squeak VM. I'm happy to see that there is now a "minimal" Mac OS source file to assist in porting. Perhaps this will free the standard Mac OS sources to be improved a bit to fit in better as a Mac OS application. I have uploaded a StuffIt archive containing modified source files, a CodeWarrior 3 project file, a resource file, a compiled (Fat) VM (including the object code patch to the PPC interpreter), and a "Read Me" file detailing the changes to: <ftp://users.aol.com//squeegee/squeak.scg.13jul98.sit> The "originals" for the modified source files are those distributed at or before change set number 138. The were current as of 12JUL98. If you're running Squeak on a Mac, please give the new VM a try. You may need to rebuild your desktop to see the icons. I'd be happy to hear what you think about it. I think Squeak and the Squeak effort are great. I'm pleased to propose these changes to make it a bit prettier on the Mac! --Steve -- Stephen C. Gilardi SQ Software

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Re: Has anybody ported FileContentsBrowser to 2.0?
by Pennell 14 Jul '98

14 Jul '98

>Sorry, I didn't put a big announcement out there. It has been ported by >William Dargel (thanks!) and currently available at > >http://isgwww.cs.uni-magdeburg.de/~raab/fcb/FileContentsBrowser-Squeak2.0.s t Thanks for the pointer. I'll try it tonight after the day job. I couldn't see this directory since there is an index file at the same level... -david

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Has anybody ported FileContentsBrowser to 2.0?
by Pennell Family 14 Jul '98

14 Jul '98

It looks like the new pluggable views are going to require quite a few changes to this. Before I got too far along, I thought I'd ask... -david

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Re: Has anybody ported FileContentsBrowser to 2.0?
by Pennell 14 Jul '98

14 Jul '98

>Andreas did it ages ago - I've been using it since a few days after 20 came >out. Isn't it on his site? I just took another look at his site and others. The latest I can find is: FileContentsBrowser-v0.2.st. . . [Apr 14 10:59] 50k -david

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Re: Rebel block
by Alan Lovejoy 14 Jul '98

14 Jul '98

sqrmax(a)cvtci.com.ar wrote: > Hi. > > I've got a misbehaving block. I evaluate it, and because what's inside it > is in beta, it crashes and burns. So I open the debugger and "of course, I > forgot the caret" or so. So I close the debugger, fix it, and when I try to > evaluate the block again an error pops up because the block is still evaluating > itself?!?!... no debugger window is visible (and no debugger shows up in find > window). If I recreate the block, I can evaluate it but when it crashes once, > it renders itself into a rebel block again!!! > > All I can see is that the primitive that evaluates the block fails just > after nil DoIt. What's going on? > > Andres. BlockContexts in Squeak are not reentrant. A block that is executing--or whose execution is not properly terminated--cannot be evaluated. The VM will refuse to evaluate any BlockContext whose program counter is not at the beginning of the block (its "pc" instance variable must be equal to the value of the instance variable "startpc", otherwise the #value primitive will fail). The primitive failure actually provides an opportunity to do something about this problem. Specifically, when the #value primitive fails, one can simply make a copy of the block, set the copy's pc to startpc, and then reevaluate the block. It is also a good idea to send the message #fixTemps to the copy, since it is very likely that reentrant use of a block will want closure semantics for the block. Here's the actual code to execute the strategy outlined above: BlockContext>reset pc := startpc BlockContext>copy ^self shallowCopy postCopy BlockContext>postCopy "If you want a copy of the block, you will also want: the copy to bind to the current values of its outer references, and the program counter of the copy to be reset to the beginning" self reset. self fixTemps BlockContext>basicValue <primitive: 81> ^self basicValueWithArguments: #() BlockContext>basicValueWithArguments: anArray <primitive: 82> ^self valueError BlockContext>valueWithArguments: anArray <primitive: 82> ^anArray size == 0 ifTrue: [self copy basicValue "the primitive may have failed because the argArray was size 0"] ifFalse: [self copy basicValueWithArguments: anArray] With the changes above, the following code can be executed successfully: | block | block := [:index | index > 0 ifTrue: [block value: index - 1]]. block value: 10. --Alan

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Re: email client
by Bob Arning 14 Jul '98

14 Jul '98

X-Fontfamily: Geneva X-Fontsize: 9 Content-Type: text/enriched <x-rich><SMALLER><SMALLER>On Mon, Jul 13, 1998 10:23 PM, </SMALLER></SMALLER> </x-rich>Content-Type: application/X-url Content-Description: Randy Siler Attachment converted: Cog:Untitled 4 (????/----) (0000DD33) X-Fontfamily: Geneva X-Fontsize: 9 Content-Type: text/enriched <x-rich><SMALLER><SMALLER> wrote:</SMALLER></SMALLER><SMALLER><SMALLER> </SMALLER></SMALLER><SMALLER><SMALLER>>BTW, what I >am talking about is an email client I have been playing with. I'm very interested to hear anything more about this email client it sounds like you are working on. I was toying with the idea of building a client in Squeak a few weeks ago and then I got worried that it would really be way too hard for me to pull it off. But I love the idea and would love to hear any more that you might want to share about what you are doing and intend to do. Cheers, Randy Siler Coordinator, CIDR Computing Center for Instructional Development & Research 396 Bagley Hall, BOX 351725 VOICE: 206/543-0751 UNIVERSITY OF WASHINGTON FAX: 206/685-1213 SEATTLE, WA 98195-3050 EMAIL: siler(a)cidr.washington.edu </SMALLER></SMALLER><SMALLER><SMALLER> --------------------- Randy, I have been poking around to see how I would do things in Squeak. What I have now is an email reader that - reads email from a server (but doesn't delete it, so I can still read it with my normal reader) - keeps all messages in a single file - allows the creation of folders to organize messages - has a mail viewer window that uses fonts/colors to try to make things more readable - has a folder view window that offers a hierarchical (collapsable) look at your mail - parses some of the content variations What it doesn't do yet: - send mail - MIME - multipart messages - drag and drop in the folder view - filters - text searching I'm starting to think that this might really be something I could wind up using (since it will do whatever I tell it<<g>). I will be happy to share/collaborate - I noticed a suggestion by Ted K. that small godies be loaded on the new swiki. Since this currently weighs in at around 60K, I'm not sure if that qualifies as small. Or I can email it to folks who are interested. I'm going to keep plugging away - if there is interest in any of the above, let me know. Cheers, Bob</SMALLER></SMALLER> </x-rich>

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Re: Squeak Discussion Area is up!
by Pennell 14 Jul '98

14 Jul '98

> Please try storing short Goodies on our Swiki also. > (It should be possible to store goodies in the 'Incoming' folder at UIUC (login: anonymous password: your email address). > Anyone tried this recently? Please post the real instructions on the Swiki.) How long is acceptable? It would be nice to be able to submit them one place (like on the Swiki) and then have them automatically moved to UIUC and its mirrors. -david

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email client
by Randy Siler 14 Jul '98

14 Jul '98

>BTW, what I >am talking about is an email client I have been playing with. I'm very interested to hear anything more about this email client it sounds like you are working on. I was toying with the idea of building a client in Squeak a few weeks ago and then I got worried that it would really be way too hard for me to pull it off. But I love the idea and would love to hear any more that you might want to share about what you are doing and intend to do. Cheers, Randy Siler Coordinator, CIDR Computing Center for Instructional Development & Research 396 Bagley Hall, BOX 351725 VOICE: 206/543-0751 UNIVERSITY OF WASHINGTON FAX: 206/685-1213 SEATTLE, WA 98195-3050 EMAIL: siler(a)cidr.washington.edu

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Re: Drawing oddity - anyone know why?
by Tim Olson 13 Jul '98

13 Jul '98

>Thanks for the information. I should have mentioned that I was working on a >Mac. Tim pointed out a solution, but as to why it is different on different >platforms, I don't know. I think it depends upon where you are placing your MorphicWorld window -- if it is full-screen or in the upper-left, then its origin and the Display origin are the same and your code works. As you move the origin of the MorphicWorld towards the lower-right, then less and less of the rectangle in the Morphic window intersects with itself when drawn at the Display origin. Alexander likely was testing with the Display and Morphic World origins the same. -- tim

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RE: Caseopia Wince/2 Implementation?
by Alejandro F. Reimondo 13 Jul '98

13 Jul '98

David, >Is anyone doing (or contemplating) a port to > the Caseopia WinCE/2 machine? >I hear we're getting one and ... I'm working on it. I'm porting Squeak 2.0 VM version to WinCE2.00 It started to run (with minor bugs) yesterday. I've been working on it during 4 weeks (2days a week) Developing for WinCE (win Ms Developer Studio C++) is really hard. I'm trying to build the 2.0VM + sqAPI suppport... then we will can develop for WinCE, under WinCE in Smalltalk! Ale. Alejandro F. Reimondo Feel free to visit Smalltalk User Group of Argentina (SUGAR) at http://www.sugarWeb.com ---------- Desde: David N. Smith[SMTP:dnsmith@watson.ibm.com] Enviado el: Lunes 13 de Julio de 1998 13:50 Para: squeak(a)cs.uiuc.edu Asunto: Caseopia Wince/2 Implementation? Is anyone doing (or contemplating) a port to the Caseopia WinCE/2 machine? I hear we're getting one and ... 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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