Squeak-dev March 2010

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158 participants
767 discussions

[BUG] Browsers vertically squished in trunk?
by Casey Ransberger 31 Mar '10

31 Mar '10

When I open a system browser in recent trunk images, the browser opens up squished vertically so the first thing I need to do is resize it. I could swear I'd seen this some place before, and the fix wound up being in toolbuilder somewhere. IIRC Andreas pointed out the fix, but I can't find the message anywhere in any of my inboxes. As a sanity check, are other people seeing this too? I might note that I've been using Squeak on a very small screen lately, if that makes any difference (I don't know, maybe the browser tries to open at a % of total screen real estate, which is too small on my box?)

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The Inbox: System-cbr.306.mcz
by commits＠source.squeak.org 31 Mar '10

31 Mar '10

A new version of System was added to project The Inbox: http://source.squeak.org/inbox/System-cbr.306.mcz ==================== Summary ==================== Name: System-cbr.306 Author: cbr Time: 30 March 2010, 5:35:55.497 pm UUID: ea39687e-5cab-4f72-88e2-2177d7fc187c Ancestors: System-nice.305 Fixed weirdness in RealEstateAgent>>standardWindowExtent which was causing browsers/etc to appear too small to use on devices with small screens. I did the most unobtrusive thing possible, as 4.1 is in code lockdown. In order to figure out what was going wrong, I refactored the whole thing, but I will save those changes for 4.2, opting to do what it takes to make the system browser usable on your 2010 interrim Dynabook. It should be noted that this method was guilty of shenanigans before I touched it :-) =============== Diff against System-nice.305 =============== Item was changed: ----- Method: RealEstateAgent class>>standardWindowExtent (in category 'settings') ----- standardWindowExtent "Answer the standard default extent for new windows. " + | effectiveExtent width strips height grid allowedArea maxLevel extent | - | effectiveExtent width strips height grid allowedArea maxLevel | effectiveExtent := self maximumUsableArea extent - (self scrollBarSetback @ self screenTopSetback). Preferences reverseWindowStagger ifTrue: ["NOTE: following copied from strictlyStaggeredInitialFrameFor:" allowedArea := self maximumUsableArea insetBy: ( self scrollBarSetback @ self screenTopSetback extent: 0@0 ). "Number to be staggered at each corner (less on small screens)" maxLevel := allowedArea area > 300000 ifTrue: [3] ifFalse: [2]. "Amount by which to stagger (less on small screens)" grid := allowedArea area > 500000 ifTrue: [40] ifFalse: [20]. + extent := (allowedArea extent - (grid*(maxLevel+1*2) + (grid//2))) min: StandardSize "600@400". + (extent y < 300) ifTrue: [^ (extent x)@300 ]. + ^ extent]. - ^ (allowedArea extent - (grid*(maxLevel+1*2) + (grid//2))) min: StandardSize "600@400"]. width := (strips := self windowColumnsDesired) > 1 ifTrue: [effectiveExtent x // strips] ifFalse: [(3 * effectiveExtent x) // 4]. height := (strips := self windowRowsDesired) > 1 ifTrue: [effectiveExtent y // strips] ifFalse: [(3 * effectiveExtent y) //4]. ^ width @ height "RealEstateAgent standardWindowExtent"!

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Daily Commit Log
by commits＠source.squeak.org 31 Mar '10

31 Mar '10

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2010-March/003175.html Name: TraitsTests-ar.8 Ancestors: TraitsTests-ul.7 Add a test for the behavior of traits during condenseChanges. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/003176.html Name: Tests-ar.66 Ancestors: Tests-ul.65 Add two tests for FileStream behavior. One that I thought was broken (but is not) and one that is broken. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/003177.html Name: Kernel-ar.436 Ancestors: Kernel-ar.435 Fix failing traits condenseChanges test. Since we do not share compiled methods, moving *all* trait methods (instead of just 'local' ones) is CORRECT behavior. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/003178.html Name: System-ar.304 Ancestors: System-tfel.303 Fixes http://bugs.squeak.org/view.php?id=6478 ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/003179.html Name: Morphic-ar.405 Ancestors: Morphic-ar.404 Fix smartSearch in the search bar. When having an exact hit on a class name it would browse the metaclass instead of the class itself. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/003180.html Name: Graphics-nice.129 Ancestors: Graphics-ar.128 1) Fix for http://bugs.squeak.org/view.php?id=7483 2) Fix _ assigments in class comments ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/003181.html Name: System-nice.305 Ancestors: System-ar.304 Fix for http://bugs.squeak.org/view.php?id=7483 #metaclass -> #metaClass =============================================

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The Trunk: System-nice.305.mcz
by commits＠source.squeak.org 30 Mar '10

30 Mar '10

Nicolas Cellier uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-nice.305.mcz ==================== Summary ==================== Name: System-nice.305 Author: nice Time: 30 March 2010, 10:18:06.019 pm UUID: 0f209bd1-5091-e043-be3e-dcac0c300036 Ancestors: System-ar.304 Fix for http://bugs.squeak.org/view.php?id=7483 #metaclass -> #metaClass =============== Diff against System-ar.304 =============== Item was changed: ----- Method: PseudoClass>>theMetaClass (in category 'accessing') ----- theMetaClass + ^ self metaClass! - ^ self metaclass!

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The Trunk: Graphics-nice.129.mcz
by commits＠source.squeak.org 30 Mar '10

30 Mar '10

Nicolas Cellier uploaded a new version of Graphics to project The Trunk: http://source.squeak.org/trunk/Graphics-nice.129.mcz ==================== Summary ==================== Name: Graphics-nice.129 Author: nice Time: 30 March 2010, 10:13:40.324 pm UUID: 95ee7ec1-dfd6-3f41-9c10-15524928ade0 Ancestors: Graphics-ar.128 1) Fix for http://bugs.squeak.org/view.php?id=7483 2) Fix _ assigments in class comments =============== Diff against Graphics-ar.128 =============== Item was changed: ImageReadWriter subclass: #PNMReadWriter instanceVariableNames: 'first type origin cols rows depth maxValue tupleType pragma' classVariableNames: '' poolDictionaries: '' category: 'Graphics-Files'! + !PNMReadWriter commentStamp: 'nice 3/24/2010 07:37' prior: 0! - !PNMReadWriter commentStamp: 'jdr 10/20/2003 17:08' prior: 0! I am a subclass of ImageReadWriter that decodes portable anymap file formats (pbm, pgm, ppm and pam) images. I accept the #origin pragma for SE files as described in: Algoritms For Image Processing And Computer Vision. J. R. Parker Don't work with 2 bytes samples (16 bit grays, > 32 bits color, etc...), pam files preliminary support. + f := ImageReadWriter formFromFileNamed: 'Tools:Squeak3.4:Carmen.ppm'. - f _ ImageReadWriter formFromFileNamed: 'Tools:Squeak3.4:Carmen.ppm'. f morphEdit Submitted by Javier Diaz Reinoso, Oct/2003! Item was changed: Pen subclass: #PenPointRecorder instanceVariableNames: 'points' classVariableNames: '' poolDictionaries: '' category: 'Graphics-Primitives'! + !PenPointRecorder commentStamp: 'nice 3/24/2010 07:38' prior: 0! - !PenPointRecorder commentStamp: '<historical>' prior: 0! This class is a special kind of Pen that instead of actually drawing lines records the destination points for those lines. These points can later be accessed through my accessing method #points. This can be useful when determining the boundaries of a drawing session. Example: | pen | + pen := PenPointRecorder new. - pen _ PenPointRecorder new. pen up; goto: 100@100; down; goto: 120@120. Transcript cr; show: 'Bounding box for drawing: '; show: (Rectangle encompassing: pen points) Implementation note: Shouldn't we override #drawFrom:to:withFirstPoint: instead, and what about #drawLoopX:Y:? Aren't we missing those calls?! Item was changed: ----- Method: DisplayScreen class>>depth:width:height:fullscreen: (in category 'display box access') ----- depth: depthInteger width: widthInteger height: heightInteger fullscreen: aBoolean "Force Squeak's window (if there's one) into a new size and depth." "DisplayScreen depth: 8 width: 1024 height: 768 fullscreen: false" <primitive: 92> + self primitiveFailed! - self primitiveFail!

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"objects pointing to this value" question
by askoh 30 Mar '10

30 Mar '10

I select a class (TRay), right click/inspect instances/ In the inspector, I select 1 and right click/objects pointing to this value/ I get another inspector on various objects. What I don't understand it that some of the refering objects are methods. How can methods point to objects that are totally unrelated to Smalltalk language construct? Thanks, Aik-Siong Koh -- View this message in context: http://n4.nabble.com/objects-pointing-to-this-value-question-tp1745840p1745… Sent from the Squeak - Dev mailing list archive at Nabble.com.

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Plain text file
by Baveco, Hans 30 Mar '10

30 Mar '10

How do I produce a plain text file that can be read by other programs, e.g. R and MSWord? Do I have to define a specific encoding? How? Files created from VisualWorks are ok; files produces with default settings from current Squeak (trunk) are not.... TIA Hans

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Set class comment
by Casey Ransberger 30 Mar '10

30 Mar '10

I noticed that the class comment for Set still thinks you can't stick nil in a set. I was going to update it, but I'm a little confused about what's going on in #array. #(#foo # bar #baz nil) asSet array {nil . nil . nil . a SetElement . nil . #foo . #baz . nil . nil . nil . #bar} Can I assume that the SetElement is a stand in for the nil item in the Set? See below for what I have so far. ================================================= As of Squeak 4.1, Sets can contain nil. I represent a set of objects without duplicates. I can hold anything that responds to #hash and #=. My instances will automatically grow, if necessary, Note that I rely on #=, not #==. If you want a set using #==, use IdentitySet. Instance structure: array An array whose non-nil elements are the elements of the set, and whose nil elements are empty slots. There is always at least one nil. In fact I try to keep my "load" at 75% or less so that hashing will work well. tally The number of elements in the set. The array size is always greater than this. The core operation is #findElementOrNil:, which either finds the position where an object is stored in array, if it is present, or finds a suitable position holding nil, if its argument is not present in array,

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IWST 2010 Call for Papers
by Michael Haupt 30 Mar '10

30 Mar '10

* Apologies for multiple copies. * Call for Papers International Workshop on Smalltalk Technologies (IWST) 2010 co-located with European Smalltalk User Group Conference (ESUG) Barcelona, Spain, September 11-17, 2010 ** Description The goal of the IWST workshop series is to create and foster a forum around advances or experience in Smalltalk. We welcome contributions on all aspects, theoretical as well as practical, of Smalltalk-related topics. There are two possible kinds of submissions, which must be in ACM SIGPLAN style: * Research papers (up to 10 pages). Submissions in this category will be rigorously reviewed, and accepted papers will be published in the ACM Digital Library (ACM SIGPLAN has approved, the final ACM approval is pending). * Demonstration papers (up to 4 pages). Submissions in this category will not be published in the ACM Digital Library, but will be available for download from the workshop web page. ** Submission and Reviewing Process The EasyChair submission web site is at http://www.easychair.org/conferences/?conf=iwst10. Authors will be given the opportunity to comment on reviewers' work by providing feedback on the reviews. For this purpose, a questionnaire will be sent to authors. Their answers will be evaluated anonymously, and feedback will be handed on to reviewers. ** Important Dates Submission: May 14, 2010 (Samoa time) Feedback: June 28, 2010 ESUG Early Registration Deadline: July 9, 2010 Workshop: September 12, 2010, Barcelona, Spain ** Programme Committee Co-Chairs: Michael Haupt, Hasso-Plattner-Institut, University of Potsdam, Germany Robert Hirschfeld, Hasso-Plattner-Institut, University of Potsdam, Germany PC Members: Gabriela Arevalo, Universidad Nacional de La Plata, Argentina Johannes Brauer, NORDAKADEMIE, Germany Johan Brichau, Université catholique de Louvain, Belgium Marcus Denker, INRIA Lille - Nord Europe, France Theo D'Hondt, Vrije Universiteit Brussel, Belgium Stéphane Ducasse, INRIA Lille - Nord Europe, France James Foster, GemStone Systems, Inc., USA Andy Kellens, Vrije Universiteit Brussel, Belgium Andreas Raab, Teleplace Inc., USA Lukas Renggli, Software Composition Group (SCG), University of Bern, Switzerland Randal L. Schwartz, Stonehenge Consulting Services, Inc. Dave Ungar, IBM Research

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Installing Seaside - Green
by Chris Cunnington 30 Mar '10

30 Mar '10

Nothing to report. Using the Squeak4.1-9850-beta image it is easy to install Seaside 2.8.* or Seaside 3.0 using MetacelloRepository on Squeaksource.com. (Load. Open Workspace. "ConfigurationOf*** load" Do it.) The tests were done with ConfigurationOfSeaside28-dkh.19.mcz and ConfigurationOfSeaside30-DaleHenrichs.136.mcz. Chris

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