Squeak-dev December 2003

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146 participants
414 discussions

building an up to date VM for unix
by Martin Kuball 07 Jan '04

07 Jan '04

Hi! I'm trying to build an up to date VM. I searched the internet and found a reference to the anonymous cvs repository on sourceforge. I checked out the ned-branch, installed VMMaker in my 3.7 image and generated everything. Than I noticed that there is no platform/unix/config/configure script and even no configure.in. So what now? Martin

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[BUG] Package Pane Browser subscript out of bounds
by Brian Brown 06 Jan '04

06 Jan '04

In 3.7alpha-5623 (vanilla image) when using the Package Pane Browser to add a new class definition or especially when modifying one, the change gets made, but then a subscript out of bounds error is thrown. 31 December 2003 4:25:22 pm VM: Win32 - a SmalltalkImage Image: Squeak3.7alpha [latest update: #5623] Array(Object)>>error: Receiver: #('Preload' 'UI') Arguments and temporary variables: aString: 'subscript is out of bounds: 162' Receiver's instance variables: #('Preload' 'UI') Array(Object)>>errorSubscriptBounds: Receiver: #('Preload' 'UI') Arguments and temporary variables: index: 162 Receiver's instance variables: #('Preload' 'UI') Array(Object)>>at: Receiver: #('Preload' 'UI') Arguments and temporary variables: index: 162 Receiver's instance variables: #('Preload' 'UI') PackagePaneBrowser>>selectedSystemCategoryName Receiver: a PackagePaneBrowser Arguments and temporary variables: Receiver's instance variables: dependents: #(a SystemWindow(2192) a PluggableListMorph(1792) a PluggableListMo...etc... contents: nil currentCompiledMethod: nil contentsSymbol: #source systemOrganizer: ('Kernel-Objects' Boolean DependentsArray False MessageSend Mo...etc... classOrganizer: nil metaClassOrganizer: nil systemCategoryListIndex: 162 classListIndex: 0 messageCategoryListIndex: 0 messageListIndex: 0 editSelection: #newClass metaClassIndicated: false package: 'SUnit' packageListIndex: 25 packageList: nil --- The full stack --- Array(Object)>>error: Array(Object)>>errorSubscriptBounds: Array(Object)>>at: PackagePaneBrowser>>selectedSystemCategoryName - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - PackagePaneBrowser>>classList PluggableListMorph>>getList PluggableListMorph>>verifyContents [] in PackagePaneBrowser(Object)>>updateListsAndCodeIn: {[:aPane | aPane verifyContents]} Array(SequenceableCollection)>>do: PackagePaneBrowser(Object)>>updateListsAndCodeIn: PackagePaneBrowser(CodeHolder)>>updateListsAndCodeIn: PackagePaneBrowser(CodeHolder)>>stepIn: PackagePaneBrowser(Object)>>stepAt:in: SystemWindow>>stepAt: StepMessage(MorphicAlarm)>>value: WorldState>>runLocalStepMethodsIn: WorldState>>runStepMethodsIn: PasteUpMorph>>runStepMethods WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: PasteUpMorph>>doOneCycle [] in Project class>>spawnNewProcess {[[World doOneCycle. Processor yield. false] whileFalse. nil]} [] in BlockContext>>newProcess {[self value. Processor terminateActive]}

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Re: [ENH] sandboxCategory-ls ( [et][er][cd][sm] )
by Richard A. O'Keefe 06 Jan '04

06 Jan '04

I wrote: > I'm already quite fed up with the amazing number of methods in > the 'as yet unclassified' category; I'm not looking forward to > a matching number of classes in a similar class category. "Lex Spoon" <lex(a)cc.gatech.edu> replied: But do you really want to disallow 'as yet unclassified' methods? I have made it a rule in my Smalltalk programming *never* to perpetrate an 'as yet unclassified' method myself. Once or twice when I was getting started or felt really lazy, I did that. Mea culpa, mea culpa, mea maxima culpa. Never again. The only reason I can see for not classifying a method that you are about to write is because you don't know what it is going to be about, and in that case, why are you writing it? As a _reader_ of Smalltalk, I find 'as yet unclassified' methods such a pain (not least because they are usually without any helpful comments either) that YES I darned well WOULD like to disallow 'as yet unclassified' methods. There is _always_ something better to put a method under than 'as yet unclassified'. If nothing else, 'unclassified command' -vs- 'unclassified query' would be a clue about whether the thing was supposed to change the receiver's state or not. And I like having a class and category around to muck in. When I'm working with students, it's nice if _they_ are using class category 'JoeStudent-461' and _I_ are using 'ROK-461' so that I can file their mucking-around category into my image and vice versa. If we all mucked around in the same category it wouldn't be so nice. Creating a class category and a class is a good beginning exercise in using a Browser. My daughters are nearly five and a bit over seven and a half. It's so _easy_ to do everything for them; it feels so unkind to insist "YOU can do that. No, you CAN do that. You'd be surprised what you can do. Go on, try." It is not clear to me that it is a kindness to provide "canned" "no-brainer" defaults.

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[ENH] ChangeSetDirectoryPref-nk
by Ned Konz 05 Jan '04

05 Jan '04

from preamble: "Change Set: ChangeSetDirectoryPref-nk Date: 15 October 2003 Author: Ned Konz This adds a Preference for a directory to save change sets in. "!

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Blocks from strings
by Nevin Pratt 02 Jan '04

02 Jan '04

How do I programmatically create a block from a string? The block's context would be the method that is creating the block. Nevin -- Nevin Pratt Bountiful Baby http://www.bountifulbaby.com (801) 992-3137

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RE: rich text in Squeak
by Darius 02 Jan '04

02 Jan '04

Could Open Office provide the ideal, standard, multi-lingual, multi-platform rich text format for Squeak?

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Re: SmallWiki and Images
by michael.cole＠nimiq.net 01 Jan '04

01 Jan '04

Lukas and Avi, Thanks for the quick responses, but something is not working for me. When I follow Lukas's point that when a new link *my fine picture* is created, one can then upload the data to define the resource. When I do this (using a .jpg, .png image) and keep 'emedded' enabled, the image link is created but it is not inlined to the page. FWIW, going to the page holding the resources shows the mime type as 'unknown'. Have I missed something blindingly obvious? Happy new year, Michael Lukas Renggli <renggli(a)student.unibe.ch> wrote: > >>> Is there a way to have embedded images in a SmallWiki page? All I > >>> seem to be able to do is to set up a link to the image. > >> > >> yes this is the way to go: simply create a link from your wiki-page > >> to the resource and the image should be inlined automatically. As an > >> example you might want to check out this page: > >> > >> http://kilana.unibe.ch:9090/ese2003gruppen-smallwikis/ > >> sureshockwriters/ > > > > Hm. That shows a link to *ssw-image* as if it were a wiki page - is > > there some way to upload and name an image, then? > > Yes, but as it points to a resource it is rendered differently according > to its mime-type: that means if it is an image an <img>, if it is a > movie an <object>, etc. is emitted. > > When creating a new link *The New Image* to a non existant structure in > SmallWiki at first the link doesn't point to anything. However on the > html-page a list with all the possible structures (depending of the > security configuration for the current user not all possibliites might > be shown) will be rendered and the user can choose what he wants to > point this link to. In the given example one would click on 'Resource' > and an upload-dialog will be presented where the user specifies the file > to upload. When hitting ok, a new resource named 'The New Image' is > created and the user is brought back to the original page displaying now > the image now inlined. >

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SmallWiki and Images
by michael.cole＠nimiq.net 01 Jan '04

01 Jan '04

Hi, Is there a way to have embedded images in a SmallWiki page? All I seem to be able to do is to set up a link to the image. Thanks, Michael Cole

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EPS export strangeness
by Ned Konz 01 Jan '04

01 Jan '04

I'm trying to get the Postscript export working for my Connectors documentation. I have fixed a couple of problems with the Bezier drawing (like using eofill rather than fill), and am now attacking the polygon drawing and filling. However, I'm a bit puzzled about a few things (note that I really am NOT a Postscript programmer): - The bounding box in the EPS output is too small by the 10x10 offset that is added, so the right edge of the printed Morph is clipped, and the morph is not centered in the resultant bbox. - For some reason, PostscriptCanvas>>frameAndFillRectangle:fillColor:borderWidth:topLeftColor:bottomRightColor: draws an "inset border" on all filled, bordered rectangles -- even if the border style isn't inset! Is this *really* what we want? Wouldn't it make more sense to try to reproduce the *actual* style of the border? - When exporting a Morph as Postscript, we use an extension of '.eps' even when not writing a valid EPS file (however, the file is much closer to a valid EPS file if you set the postscriptStoredAsEPS preference). Perhaps we should use a '.ps' extension when not writing an EPS. - EPS files aren't supposed to do 'showpage', but we put one at the end of the file. Should we? And we go to some lengths to redefine showpage so it's bracketed with a gsave/ grestore. Why? /_showpageSqueak /showpage load def /showpage { gsave _showpageSqueak grestore } bind def - EPS files aren't supposed to mess with global drawing state settings. However, we do this: [ currenttransfer /exec cvx 1.2 /exp cvx ] cvx bind settransfer which appears (to me) to be changing the gamma. But what happens if you have several of these .EPS files in a single document? Won't the transfer function then be changed by each one of these? And anyway, isn't the gamma *really* device-dependent? How would we know how much gamma correction to use if we don't know what devices they're viewing the original and the Postscript on? It's not like we can assume they're viewing the original on a Mac and printing on a LaserWriter, after all... - We don't provide a preview image for the EPS, which makes it harder to actually *use* the EPS files in something like a word processor. Has anyone done any work with the Postscript output recently? Thanks, Ned

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GOODS commit performance
by Vaidas Didzbalis 31 Dec '03

31 Dec '03

Hi, Why next commit on takes so long even if I’ve changed nothing since first one? db := KKDatabase onHost: ' localcost' port: 6100. root := db root. nt := OrderedCollection new. root at: #NumbersTable put: nt. db commit. 1 to: 1000000 do: [:e | nt add: e] [db commit.] timeToRun. <31158> [db commit.] timeToRun.<16875> Thank you. Vaidas

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