Squeak-dev August 2001

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187 participants
488 discussions

[off-topic] Argentina
by Dan Rozenfarb 30 Aug '01

30 Aug '01

Hi all, Excuse me for this off topic email, but I felt I needed to write it. I live in Argentina, a drying country. We are going through one of the most deep crisis so far (including salary education and science cuts). As opposed to what many people believe, I don't feel is everyone else's fault, but the lack of social cohesion and self defense. I've been following the squeak list for quite a while (though not participated much), just read McIntosh's CampSmalltalk report and I felt emotionally moved. I love Smalltalk, his pure object approach and his simplicity, but his community is what is really priceless. It keeps Smalltalk living, and me happy for (at least at a microlevel) belonging to it. Thanks to all of you. I am feeling a bit more relieved right now. Dan Rozenfarb __________________________________________________ Do You Yahoo!? Get email alerts & NEW webcam video instant messaging with Yahoo! Messenger http://im.yahoo.com

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[ENH] VisualWorks style window rect from user.
by sps2000＠mail.com 30 Aug '01

30 Aug '01

[NOTE: sorry if this get's up to the list twice] from preamble: "Change Set: spsWindowRectFromUser Date: 30 August 2001 Author: Steven Swerling This changeset is a little tidbit for those VisualWorks users who enjoyed the way VW would place many new windows on the screen: first it gets a rectangle from the user, by ""rubberbanding"" a rectangle -- the resulting window opens within the bounds of that rectangle. There are myriad calls to SystemWindow>>openInWorld. The changeset does not make a big generalization about having all windows getRectFromUser. After all, you might not want a Debug notifier window or SyntaxError window to be impeded on its way to the screen. Instead, I have rehooked a few windows to call SystemWindow>>openInWorldRectFromUser:. If you have a window that is not getting rectFromUser, and want it to do so, just find the call to SystemWindow>>openInWorld: and redirect it to #openInWorldRectFromUser: (or #openInWorldRectFromUser:extent:). A preference is added in the Windows category, 'windowRectFromUser', so if you are on the bubble about whether you like the feature, you can save it in the image and turn in on or off through the preferences panel for Windows (WorldMenu->help->preferences, in the Windows 'tab'). "!

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[off-topic] Argentina
by Dan Rozenfarb 30 Aug '01

30 Aug '01

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Help needed with FFI
by Joseph Frippiat 30 Aug '01

30 Aug '01

Hi, I try to write an application to exchange data with an external device (a Programmable Logic Controller). I want to use the dll that I received with this device. The application can read data in the device but when I quit Squeak, the VM crashs every time. This is the content of the crash.dmp file: Exception code: C0000005 Exception addr: 77F63A05 Access violation (read access) at 00000000 EAX:00051DD4 EBX:0000000E ECX:00000000 EDX:68C00000 ESI:00000000 EDI:000B03F0 EBP:0004F8CC ESP:0004F8C8 EIP:77F63A05 EFL:00010293 FP Control: FFFF027F FP Status: FFFF5061 FP Tag: FFFFFFFF Current byte code: 227 Primitive index: 94 Stack dump follows: 30416204 EventSensor>ioProcess 30416420 [] in EventSensor>startUp 30416512 [] in BlockContext>newProcess I join the source code in the file SAIA-Interface.st To crash the VM, I do the following things in a workspace: p _ PCDConn new. p open. p readR: 1000 count: 8. p close. Then I quit Squeak without saving and the VM crashs. Can somebody give me help or tips or documentation ? Thanks Joseph Frippiat

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[biosqueak] GUIs
by Bruce Oneel 30 Aug '01

30 Aug '01

Hi, I think this sounds like an exciting project. I also think that Randal's idea of concentrating on the GUIs is a good idea. I've worked with scientists for years and getting them to give up ther Fortran and/or C is basically impossible for a load of social reasons. I'll see if I can put together a web page that we could use as an intro similar to the bioperl.org etc ones over the next day or so. cheers bruce

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[ENH] VisualWorks style window rect from user.
by sps2000＠bestweb.net 30 Aug '01

30 Aug '01

from preamble: "Change Set: spsWindowRectFromUser Date: 30 August 2001 Author: Steven Swerling This changeset is a little tidbit for those VisualWorks users who enjoyed the way VW would place many new windows on the screen: first it gets a rectangle from the user, by ""rubberbanding"" a rectangle -- the resulting window opens within the bounds of that rectangle. There are myriad calls to SystemWindow>>openInWorld. The changeset does not make a big generalization about having all windows getRectFromUser. After all, you might not want a Debug notifier window or SyntaxError window to be impeded on its way to the screen. Instead, I have rehooked a few windows to call SystemWindow>>openInWorldRectFromUser:. If you have a window that is not getting rectFromUser, and want it to do so, just find the call to SystemWindow>>openInWorld: and redirect it to #openInWorldRectFromUser: (or #openInWorldRectFromUser:extent:). A preference is added in the Windows category, 'windowRectFromUser', so if you are on the bubble about whether you like the feature, you can save it in the image and turn in on or off through the preferences panel for Windows (WorldMenu->help->preferences, in the Windows 'tab'). "!

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[ENH] FileList with fixed button bar and pattern entry panes
by Stephan B. Wessels 30 Aug '01

30 Aug '01

Attached please find a gz change set "sbw-FileListFixedPanes.cs.gz". This is a revision to an earlier change set I published about a week ago. The changes here account for those published in update #4266 by ra. With this change set the button bar pane and pattern pane now have fixed heights in FileList. Tested with both traditional and "new look" windows. Please see my Squeak updates web page for recent enhancements/fixes/goodies including screenshots. http://w3.one.net/~swessels/pages/steve/squeak/update-20010821/index.html - Steve <Attachment missing> -- Books are not made for furniture, but there is nothing else that so beautifully furnishes a house. Henry Ward Beecher Attached please find a gz change set "sbw-FileListFixedPanes.cs.gz". This is a revision to an earlier change set I published about a week ago. The changes here account for those published in update #4266 by ra. With this change set the button bar pane and pattern pane now have fixed heights in FileList. Tested with both traditional and "new look" windows. Please see my Squeak updates web page for recent enhancements/fixes/goodies including screenshots. http://w3.one.net/~swessels/pages/steve/squeak/update-20010821/index.html - Steve -- Books are not made for furniture, but there is nothing else that so beautifully furnishes a house. Henry Ward Beecher

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How to make stripes
by Ross Boylan 30 Aug '01

30 Aug '01

I want to fill rectangles with stripes. What's a good way to do this? It looks as if I might want to use FillStyle's, but Morph>>fillStyle: has the comment "Workaround for Morphs not yet converted" This suggests fillStyle is on the way out, but I don't know what the conversion is from or to. When I try the following, I get a very mottled looking background: |a b c| a _ Form extent: 4@4 depth: 32. c _ Color red. a colorAt: 3@1 put: c; colorAt: 4@1 put: c; colorAt: 2@2 put: c; colorAt: 3@2 put: c; colorAt: 1@3 put: c; colorAt: 2@3 put: c; colorAt: 1@4 put: c; colorAt: 4@4 put: c. b _ RectangleMorph new. b color: (InfiniteForm with: a). b openInHand. I've also tried vertical stripes (the preceding attempts diagonal stripes), but I get the same irregular results. Perhaps InfiniteForm's do not line up as I would expect?

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Essen ESUG experience report day 2
by John M McIntosh 30 Aug '01

30 Aug '01

http://www.smalltalkconsulting.com/html/Essen2001_2.html Day two with Joseph Pelrine's presentation on Modular Smalltalk. A must read.

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Re: AutoStart doesn't work with a shrunken image
by Bruce Oneel 30 Aug '01

30 Aug '01

I get rid of extra projects with: p := (Project allProjects) at: 2 Project deletingProject: p where the 2 obviously changes given which project one wants to nuke. Is this the righ way? Well, the image hasn't crashed yet :-) cheers bruce Tim Rowledge <tim(a)sumeru.stanford.edu> wrote: > Jon Hylands <jon(a)huv.com> is widely believed to have written: > > > > How small have you been able to make the image? > > This one came out at 5Mb, but for some reason I don't seem to be able to > get rid of the 3D project. Ran all the usual stuff, but it just sits > there sticking its tongue out at me. The window goes away ok, but the > project is still there in the project list. > > One I prepared based on update 4164 got down to 3.3Mb doing just the > same shrinkage. Go figure. > > tim > > -- > Tim Rowledge, tim(a)sumeru.stanford.edu, http://sumeru.stanford.edu/tim > Klingon functions don't have 'parameters'. They have _arguments_ and are > expected to win them.

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