Squeak-dev February 2001

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144 participants
725 discussions

[BUG] BitBlt mixup
by Helge Horch 01 Mar '01

01 Mar '01

Folks, I'm seeing really weird BitBlt artefacts on my Windoze machines, and I can't fix it myself. The following is reproducible on all my machines, systems (NT/98) and VMs (3.0bld2, 3.0bld1, even 2.8bld-a2). I'd be curious whether Mac and Unix users get this, too: Open a *vanilla* 3.0final image, and do not move, collapse nor obscure the "Welcome" window. Open a workspace and do: | p q | p _ 394@261. q _ p + (200@0). Display copy: (p extent: 100@100) from: Display to: q rule: 3. and whip out a MagnifierMorph to examine the result. Here, the first two columns look rather odd. (The "f" of the "for" is missing many bits, while the "e" of the "The" is compressed horizontally.) I thought I was hallucinating -- this couldn't be, someone would have noticed long ago. But the nastiness nastily varies with Squeak's bit depth. With a graphics card in 32bit mode, the Squeak modes behave as follows: 32 bit: effect is hardly noticeable, the "e" is copied, but 1 bit shorter (top line: 2 pixels instead of 3), 16 bit: the "e"'s top line is only 1 pixel wide, 8 bit: the "e" is crippled, 4 bit: the "e" is copied intact, but now the "o" of the "for" is missing completely, 1 bit: perfect. I have rummaged through my archive, and a 2.5 VM (win build 6) with an accompanying 2.5f1543 does not show these artefacts, at any bitdepth. Cheers, Helge

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[BUG] walkback in ClassChangeRecord>>assimilateAllChangesIn:
by Ned Konz 28 Feb '01

28 Feb '01

I have a change set that I'm copying into another change set. I get a walkback when I do this. In ClassChangeRecord>>assimilateAllChangesIn:, otherRecord looks like this: inForce: false revertable: false changeTypes: an IdentitySet(#rename #addedThenRemoved) thisDefinition: nil priorDefinition: 'NCConstraintMorph subclass: #NCHandleConstraintMorph instanceVariableNames: '''' classVariableNames: '''' poolDictionaries: '''' category: ''NK-NewConnectors''' thisName: #NCLabelConstraintMorph priorName: #NCHandleConstraintMorph thisOrganization: nil priorOrganization: nil thisComment: nil priorComment: nil thisMD: nil priorMD: nil methodChanges: an IdentityDictionary(#applyConstraint:->a MethodChangeRecord (#change) #constrainedHasHalo->a MethodChangeRecord (#change) #extent:->a MethodChangeRecord (#add) #initialize->a MethodChangeRecord (#change) #offset->a MethodChangeRecord (#add) #offset:->a MethodChangeRecord (#change) #position:->a MethodChangeRecord (#change) #setOffset->a MethodChangeRecord (#change) #setOffsetFrom:->a MethodChangeRecord (#change) #step->a MethodChangeRecord (#add) #visible->a MethodChangeRecord (#add) #wantsSteps->a MethodChangeRecord (#remove) ) Image version: Squeak3.1alpha of 7 February 2001 latest update: #3737 Current Change Set: NewConnectors-nk VM version: Squeak3.0 of 4 February 2001 [latest update: #3446] for: unix Receiver: a ClassChangeRecord Instance variables: inForce: false revertable: false changeTypes: an IdentitySet(#rename) thisDefinition: nil priorDefinition: nil thisName: #NCLabelConstraintMorph priorName: 'NCHandleConstraintMorph' thisOrganization: nil priorOrganization: nil thisComment: nil priorComment: nil thisMD: nil priorMD: nil methodChanges: an IdentityDictionary() Method (temp) variables: changeSymbol: #addedThenRemoved class: nil Stack: ClassChangeRecord(Object)>>error: ClassChangeRecord>>noteChangeType:fromClass: [] in ClassChangeRecord>>assimilateAllChangesIn: IdentitySet(Set)>>do: ClassChangeRecord>>assimilateAllChangesIn: ChangeSet>>absorbClass:from: [] in ChangeSet>>assimilateAllChangesFoundIn: SortedCollection(OrderedCollection)>>do: ChangeSet>>assimilateAllChangesFoundIn: ChangeSorter>>copyAllToOther ChangeSorter(StringHolder)>>perform:orSendTo: [] in MenuItemMorph>>invokeWithEvent: BlockContext>>ensure: CursorWithMask(Cursor)>>showWhile: MenuItemMorph>>invokeWithEvent: MenuItemMorph>>mouseUp: MenuItemMorph>>handleMouseUp: MouseButtonEvent>>sentTo: MenuItemMorph(Morph)>>handleEvent: MorphicEventDispatcher>>dispatchDefault:with:

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[GOODIE] PlayBenchFixes-nk
by Ned Konz 28 Feb '01

28 Feb '01

from preamble: "Change Set: PlayBenchFixes-nk Date: 28 February 2001 Author: Ned Konz This is a fixed version of Mark Guzdial's book example that has better layout. Use it with my HeadMorphFixes changeset."!

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[FIX] HeadMorphFixes-nk
by Ned Konz 28 Feb '01

28 Feb '01

from preamble: "Change Set: HeadMorphFixes-nk Date: 28 February 2001 Author: Ned Konz This fixes the bounds problems in the HeadMorphs such that they're usable in other Morphs more easily."!

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Clean up of the 3.0 dir on the uiuc ftp site
by Bruce ONeel 28 Feb '01

28 Feb '01

Hi, Assuming it's ok, I'm going to clean up the uiuc 3.0 directory over the next few days. I'll build up bundles as well as write a README. For those of you who build VMs now would be a handy time to build them :-) If there is some mac friendly person who can upload at high speed could you get in touch with me? I've lost my high speed upload ability :-( Thanks. cheers bruce

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Re: Fwd: [Win32] just another VM update (3.1 alpha build 1)
by Bruce ONeel 28 Feb '01

28 Feb '01

Hi, This VM is up on the 3.1_alpha directory on the uiuc ftp site. cheers bruce Bruce O'Neel <bruce_oneel(a)yahoo.com> wrote: > > --- "Raab, Andreas" <Andreas.Raab(a)disney.com> wrote: > > From: "Raab, Andreas" <Andreas.Raab(a)disney.com> > > To: "'squeak(a)cs.uiuc.edu'" <squeak(a)cs.uiuc.edu> > > Subject: [Win32] just another VM update (3.1 alpha > > build 1) > > Date: Wed, 28 Feb 2001 01:42:10 -0800 > > Reply-to: squeak(a)cs.uiuc.edu > > > > Folks, > > > > There's good news and there's bad news. The bad news > > is that you'll probably > > have to download a new VM. The good news is that you > > probably *want* to ;-) > > Some serious improvements and fixes have been made > > in this latest VM, > > including: > > > > * dynamic growth of ObjectMemory: > > Yeah! Finally. No more -memory:, no more space low > > warnings unless you *are* > > out of memory. Note that this is why I consider it a > > 3.1alpha1 VM; the > > changes do work with older images but it's really a > > 3.1 feature. If you're > > updated through the last series of changes that Dan > > posted for 3.1 then you > > should get this VM and do a "space left" - could be > > interesting ;-) > > [BTW, if you're interested in what is going on under > > the hood, then go into > > the VM preferences and turn on "show allocation > > activity" - this will print > > out when the OM is actually growing and shrinking] > > IMPORTANT: If you're planning to use this VM with > > 3.0 images you should get > > the change set 3723SizeHint-ar from the 3.1 update > > stream. Otherwise it > > might be that the project publishing mechanism tries > > to allocate huge (and I > > mean: HUUUUGGGGGEEEEE) amounts of memory. It'll work > > without the CS but it's > > a gigantic waste of resources. > > > > * fixes for the networking code: > > The new VM limits the stack size to 128k and should > > allow for at least 200 > > sockets to be open concurrently. I also fixed the > > code so that it fails the > > primitive cleanly when the threads cannot be > > created. I'd be interested in > > seeing how many sockets can be open on NT in > > parallel (I've only tried on > > '98). Here's how you can find out: > > > > | index tmp s | > > Socket initializeNetworkIfFail:[^0]. > > index _ 0. > > tmp _ WriteStream on: #(). > > [s _ Socket new. > > s isValid] whileTrue:[ > > index _ index + 1. > > tmp nextPut: s]. > > tmp contents do:[:sock| sock destroy]. > > ^index > > > > [BTW, I'm seriously considering to switch once again > > to a different > > implementation of the socket prims, using only a > > single thread and event > > notification which should basically put up the limit > > of socket creation to > > virtual infinity] > > > > * fixes for the display code: > > Some of you have seen those weird error messages > > saying "SetDIBitsToDevice() > > failed". While running the socket tests I found that > > the error reported was > > just nonsense (invalid argument where it should say > > out of resources). This > > has been fixed as well (cost you a factor of five in > > speed if you need it > > but still better than not seeing anything on screen > > ;-) > > > > * MSVC fixes: > > Some places that were incorrectly relying on certain > > MingW features have > > been fixed. I've included the Makefile that Phiho > > Hoang posted (thanks!) so > > that an MSVC build should work out of the box again. > > Please try. > > > > > > Okay, that's it. The stuff is in the usual places: > > > http://isgwww.cs.uni-magdeburg.de/~raab/squeak/SqueakExe.zip > > [VM only] > > > http://isgwww.cs.uni-magdeburg.de/~raab/squeak/Squeak.zip > > [VM+image] > > > http://isgwww.cs.uni-magdeburg.de/~raab/squeak/src/Squeak3.1Alpha1Src.zip > > [VM sources] > > > > Enjoy, > > - Andreas > > > > > > > > > ===== > Bruce O'Neel - beoneel(a)acm.org http://homepage.iprolink.ch/~bioneel > The corporate culture is concerned less with Occam's razor than his > aftershave lotion. -- R. L. Peskin <peskin(a)caip.rutgers.edu> > > __________________________________________________ > Do You Yahoo!? > Get email at your own domain with Yahoo! Mail. > http://personal.mail.yahoo.com/

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[BUG] Bad menu title in 3.0
by David N. Smith (IBM) 28 Feb '01

28 Feb '01

In PhonemeRecognizerMorph>>#selectPhonemeFromMenu a menu title is 'Phoneme to delete?' aMenu _ CustomMenu new title: 'Phoneme to delete?'. This is used by several methods to list available phonemes and only one does a deletion. I changed #selectPhonemeFromMenu to #selectPhonemeFromMenu: aString. The string is the menu header. The code which creates the menu (above) now uses the string instead of a literal. I'm in 3.0 final. I don't have a 3.1 beta to check against (yet). 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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Re: Amazon listing on Smalltalk missing Squeak
by Jeff Szuhay 28 Feb '01

28 Feb '01

>And when I went to buy Mark's Squeak textbook in a brick and mortar >Border's bookstore, the book was shelved in the object-oriented technology >section, rather the the Smalltalk language section. I thought was perhaps >a marketing move similar in spirit to choosing Squeak as the system name... Wow! Borders has a Smalltalk section? I'll have to check that out. Jeff 8-) -- ************************************************** Jeff Szuhay A randomly-directed www.szuhay.org chaotical wetware pattern jeff(a)szuhay.org recognizer/generator. Learn as if you were to live forever. Dance as if no one was watching. Live as if you were to die tomorrow. -- Gandhi

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[Bug] More on PluggableTextMorphs
by Mark Guzdial 28 Feb '01

28 Feb '01

I'm still trying to get PluggableTextMorphs working under 3.0. Here's the weird new discovery: If I pull the PluggableTextMorph *out* of its AlignmentMorph, it works fine. But if the PluggableTextMorph is inside an AlignmentMorph, I lose the cursor after every keystroke. (I tried to remove all of my AlignmentMorphs and make my overall PlayBench into a subclass of Morph instead of AlignmentMorph, but I caused a VM crash, and the emergency evaluator crashed when I tried to exit. <sigh>) 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: [BUG] 3.1Alpha Adding IV to Morph
by Mark Guzdial 28 Feb '01

28 Feb '01

I just tried it with 3.0 and 3.1alpha (but without all new updates -- I'm loading them now), without a crash (also on a Mac -- G3 PB, 9.0.4, with 3.0Alpha6MT VM): - Go to Supplies and pull out an EllipseMorph - Bring up a halo on the EllipseMorph and open its viewer. - Click on the button to the left of the "Ellipse" name to bring up a menu, and choose "Add instance variable." - Type "velocity" into the pop-up It does pause for a good while, but then it's there and workable. Dan -- could it be a low space problem? I've had running out of memory cause weird things to happen in the past. The bug I'm currently working on is in the Play Writing Workbench. Besides the HeadMorphs being too large (which is annoying, but just cosmetic), I'm having a problem with the script entry area. I'm just using a PluggableTextMorph, but I'm finding that the cursor gets lost after every keystroke. - Click at the end of the text area, and the cursor appears. - Type one character - The cursor disappears - Type a second character and it appears at the TOP of the text morph To get text into the script area, I currently have to do click-type-click-type-etc. It did work fine under 2.8 -- can anyone suggest where I might look to how PluggableTextMorphs changed under 3.0? Thanks! Mark At 1:04 AM -0800 2/28/01, Dan Shafer wrote: >I have been working with Mark Guzdial's tutorial on Morphic where he has the >reader build an ellipse that falls more or less gravitationally. Every time in >3.1 when I add the instance variable "velocity" to the ellipse object, there's >a brief pause (3-7 seconds) and then Squeak crashes completely. > >This on a Mac 9.0.4 system with the 41 latest updates filed in as of tonight. > >__________________________________________________ >Do You Yahoo!? >Get email at your own domain with Yahoo! Mail. >http://personal.mail.yahoo.com/ -------------------------- 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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