Squeak-dev October 1999

squeak-dev@lists.squeakfoundation.org

141 participants
396 discussions

wearable computers
by Ivan Tomek 06 Oct '99

06 Oct '99

Check out http://www.usnews.com/usnews/issue/991011/nycu/wearable.htm Dr. Ivan Tomek, Jodrey School of Computer Science Acadia University Nova Scotia, Canada fax: (902) 585-1067 voice: (902) 585-1467

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Re: outline editor like Think
by Jason McVay 05 Oct '99

05 Oct '99

is it just me or do other people have difficulty decompressing the compressed changesets there? the .zip one is corrupt and the .hqx file has so many errors (according to stuffit deluxe) that it's impossible to decompress it. any ideas about this anyone? jason ---------- >From: Dwight Hughes <dwighth(a)ipa.net> >To: squeak(a)cs.uiuc.edu >Subject: Re: outline editor like Think >Date: Tue, Oct 5, 1999, 1:49 PM > > http://latl.unige.ch/lmc/f5/

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RE: Method ioExit does not exist
by Alejandro F. Reimondo 05 Oct '99

05 Oct '99

ioExit()-- exit the VM: quit the application, reboot, power down, or -- some other behavior appropriate to this platform -- (if this is a noop you won''t be able to quit from Squeak) Ale. ---------- De: Hernan Wilkinson[SMTP:hwilkinson@bitx.com.ar] Responder a: squeak(a)cs.uiuc.edu Enviado el: Martes 5 de Octubre de 1999 16:28 Para: Squeak Asunto: Method ioExit does not exist Hi, I'm using the Interpreter to run some test on a Windows CE image. I have Squeak 2.5 When I issue a 'quit' on the image that squeak is interpreting, I get an error on the primitiveQuit method. That method says: self ioExit. The problem is that ioExit does not exist, so I can never stop the interpreter in the right way. What should ioExit do? Thanks, Hernan. _____________________________________________ Hern·n A. Wilkinson BitX S.A. Argentina Phone: (54-11) 4574-1544 Fax: (54-11)4573-3368 Franco 3419 . 1er piso - (1419)- Buenos Aires - Argentina Web: www.bitx.com.ar

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Method ioExit does not exist
by Hernan Wilkinson 05 Oct '99

05 Oct '99

Hi, I'm using the Interpreter to run some test on a Windows CE image. I have Squeak 2.5 When I issue a 'quit' on the image that squeak is interpreting, I get an error on the primitiveQuit method. That method says: self ioExit. The problem is that ioExit does not exist, so I can never stop the interpreter in the right way. What should ioExit do? Thanks, Hernan. _____________________________________________ Hernán A. Wilkinson BitX S.A. Argentina Phone: (54-11) 4574-1544 Fax: (54-11)4573-3368 Franco 3419 . 1er piso - (1419)- Buenos Aires - Argentina Web: www.bitx.com.ar

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RE: outline editor like Think
by agree＠carltonfields.com 05 Oct '99

05 Oct '99

Back to the "teaching to fish" theory: You can: (1) open a browser and try to find it by spanning through the categories; or (2) if you know the name of a class (or a fragment of a name of a class), select the "find class" option from the top left browser pane (or Command-f), and type the name or fragment; or (3) if you know the precise name of a class, open a workspace and execute the following: PWS browse > -----Original Message----- > From: MIME :stephan.wessels@sdrc.com > Sent: Tuesday, October 05, 1999 1:18 PM > To: squeak(a)cs.uiuc.edu > Cc: mtidwell(a)mail.com > Subject: Re: outline editor like Think > > > > In the Browser look at PluggableWebServer -> PWS. > > Where is this? > > > >

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[ANN][ENH] OSProcess for Squeak - Version 0.4
by David T. Lewis 05 Oct '99

05 Oct '99

Files are located at http://minnow.cc.gatech.edu/squeak.708 This release corrects several errors and adds some new features. Version 0.3 was built on a lib5 based Linux system, and did not properly implement image forking. This version corrects the error, allowing OSProcess to function correctly on newer Linux systems and on FreeBSD. See the "utilities" and "examples" categories in UnixProcess and OSProcess for several new utility methods and entertaining examples. Binaries are provided for the following platforms: Linux-2.2.10 (SuSE 6.2 distribution) Linux-2.0.35 (SuSE 5.2 distribution) FreeBSD-2.2.6 (Walnut Creek CDROM distribution) Run your favorite Squeak 2.4 or 2.5 image using one of these sets of binaries, then file in OSProcess.4Octo1251pm.cs, and give it a try. Version 0.4 relies on a hacked copy of sqXWindow.c from the Squeak 2.4 release. The hacked version permits access to command line arguments and environment variables, and adds support for SystemDictionary>>getSystemAttribute. I will put out an update as soon as updated Unix VM source code for Squeak 2.5 is available. Comments and criticism appreciated.

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[BUG][FIX]CCodeGen>pruneUnreachableMethods:
by Tim Rowledge 05 Oct '99

05 Oct '99

Acorn needs an addition to the non-pruanbles. tim -- Gotta run, the cat's caught in the printer. Tim Rowledge: rowledge(a)interval.com (w) +1 (650) 842-6110 (w) tim(a)sumeru.stanford.edu (h) <http://sumeru.stanford.edu/tim> Content-Type: APPLICATION/Octet-stream; NAME="TPR-25VMfixes/4Octo359pm.cs" Attachment converted: Anon:TPR-25VMfixes/4Octo359pm.cs (????/----) (000144D2)

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[FIX] Paint box stamps
by Bert Freudenberg 05 Oct '99

05 Oct '99

"Change Set: paintBoxFixes-bf Date: 4 October 1999 Author: Bert Freudenberg * Restores the PaintBox's stamp deleting feature (dropping into trash can) * Makes transparent stamps work in display depth > 8" --------------------------------------------------------- ObSqueak: How to build a *real* magnifying glass. (1) paint a magnifying glass: new morph... > make new drawing. Paint a black-bordered circle filled with yellow (or something). Add a short black line as handle at the lower right. Select "keep" to finish. (2) get a new MagnifierMorph: new morph... > Demo. Resize it to the same size as your sketch. Select "stop tracking pointer" from its red halo handle. (3) get a new ScreeningMorph: new morph... > Demo. Drop the MagnifierMorph into it first, then your SketchMorph. Now you can grab the handle and magnify. If we just had some bugs to examine ;-) /bert Content-Type: TEXT/PLAIN; charset=US-ASCII; name="paintBoxFixes-bf.4Octo1130pm.cs" Content-ID: <Pine.LNX.3.96.991005005012.2953B(a)balloon.cs.uni-magdeburg.de> Content-Description: 'From Squeak 2.5 of August 6, 1999 [latest update: #1514] on 4 October 1999 at 11:30:50 pm'! "Change Set: paintBoxFixes-bf Date: 4 October 1999 Author: Bert Freudenberg * Restores the PaintBox's stamp deleting feature (dropping into trash can) * Makes transparent stamps work in display depth > 8"! !SketchEditorMorph methodsFor: 'actions & preps' stamp: 'bf 10/4/1999 23:02'! pickupMouseUp: evt "Grab a part of the picture (or screen) and store it in a known place. Like Copy on the Mac menu. Then switch to the stamp tool." | rr pp pForm ii oldRect curs | lastEvent == nil ifFalse: [ "Last draw will stick out, must erase the area" oldRect _ strokeOrigin rect: lastEvent cursorPoint + (14@14). self restoreRect: (oldRect insetBy: -2)]. self primaryHand showTemporaryCursor: nil. "later get rid of this" rr _ strokeOrigin rect: evt cursorPoint + (14@14). pp _ rr translateBy: self world viewBox origin. ii _ rr translateBy: (0@0) - bounds origin. (rr intersects: bounds) ifTrue: [ pForm _ paintingForm copy: ii. pForm isAllWhite "means transparent" ifFalse: [] "normal case. Can be transparent in parts" ifTrue: [pForm _ nil. "Get an un-dimmed picture of other objects on the playfield" "don't know how yet"]]. pForm ifNil: [pForm _ Form fromDisplay: pp]. "Anywhere on the screen" palette pickupForm: pForm. curs _ palette actionCursor. evt hand showTemporaryCursor: curs. ! ! !TrashCanMorph methodsFor: 'event handling' stamp: 'bf 10/4/1999 16:47'! mouseDown: evt | paintBox palette | self currentHand endDisplaySuppression. "See if a stamp is being dropped into the trash. It is not held by the hand." (paintBox _ self findActivePaintBox) ifNotNil: [ paintBox getSpecial == #stamp: ifTrue: [ paintBox deleteCurrentStamp. "throw away stamp..." self primaryHand showTemporaryCursor: nil. ^ self]]. "... and don't open trash" palette _ self standardPalette. ((palette notNil and: [palette isInWorld]) and: [palette hasScrapsTab]) ifTrue: [palette showScrapsTab] ifFalse: [self currentHand openScrapsBook] ! ! TrashCanMorph removeSelector: #openTrash!

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[BUG][FIX] Balloon: bad segment count for bezier shapes
by Duane Maxwell 04 Oct '99

04 Oct '99

When fed a bezier shape, Balloon incorrectly uses the point count, rather than groups of three points, to be the count of bezier segments. Fix follows: BalloonEngine>>drawBezierShape: points fill: fillStyle borderWidth: borderWidth borderColor: borderFill transform: aTransform | fills | self edgeTransform: aTransform. self resetIfNeeded. fills _ self registerFill: fillStyle and: borderFill. self primAddBezierShape: points segments: points size // 3 fill: (fills at: 1) lineWidth: borderWidth lineFill: (fills at: 2). self postFlushIfNeeded.

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RE: red/yellow/blue buttons an anachronism?
by Peter Crowther 04 Oct '99

04 Oct '99

> The names of the buttons should be semantic, not color or positional. .... unless the semantics vary between different parts of the same system, in which case no single semantic naming convention can suffice. For example: > In MVC, <select> <operate> and <window> are the names I think of for the > mouse. In Morphic, <select> <operate> and <halo> . Case closed, to me at least. As we're in a situation where a button does not necessarily have a single physical realisation (for example, option keys to distinguish multiple virtual buttons on the click of one physical button), let alone the same physical realisation for all users on all platforms, a positional notation is also inappropriate. Given the above, it seems natural to invent an arbitrary set of names for an arbitrary set of virtual buttons. I'd quite happily go with Charles, Renaldo and Kung-Kiu as the names of the buttons provided the names were used consistently; what is then important is a consistent mapping of these virtual buttons to operations within any particular interface style, such as MVC, Morphic, the GIMP, the Windows Style Guide, Paint Shop Pro. - Peter

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