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Collections : abstract class stepping around bad request in code subclass should implement ?
by Robert Shiplett Sept. 26, 2012

Sept. 26, 2012

yes, 2.0 has that odd duplicate code (see my prev misplaced msg below ...) A lot of time spent in expression-based languages leaves me uncomfortable that ^self is used for this NOP condition which looks like an unmessaged/unsignalled failure that should never arise. I ask just me: why is this not Error material ? Should there not be a flag to test against as to whether this is non-recoverable non-completion of task ? The opponents of nil checks spend too little time in happily back-tracking Icon dialects ? ( yes ... there is now expression-based ObjectIcon - and it is Unicode ) Of course the real question is how this code gets to stay there at all even in 2.0 - or shoudl I be asking why a Trait was not the cure here ? The really good news: it was not a copy-n-paste ! But seriously ... when this failure occurs, what flags that it is harmless ? Compare messaging model of RTOS QNX where the cost of this advice is low. Or is this all safely covered by unit testing ? ( yes, that is my twisted sense of almost-humour ... ) > > In 1.4 ArrayedCollection we have > > this > > self class isPointers | self class isWords not ifTrue: [^self]. > > in >>restoreEndianness > > but this in > > >>writeOn: > > (self class isPointers or: [ self class isWords not ]) ifTrue: [^ self ]. > > It gets called once per task in both and should be a correct method, > right ? The former does not even look correct at a glance. > > I have no time today to go check if this odd duplication remains in > 2.0 as I must run >

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XDisplayControlPlugin location?
by Paul DeBruicker Sept. 26, 2012

Sept. 26, 2012

Hi- Where can I find the latest XDisplayControlPlugin? Is this it: http://wiki.squeak.org/squeak/3350 ? I was trying to run UnixProcess saveImageInBackgroundNicely in Pharo-1.4 using both Eliots and the inria vm's but can't because I don't have the aforementioned plugin. Thanks in advance Paul

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Zinc crashes an image.
by Paul DeBruicker Sept. 25, 2012

Sept. 25, 2012

Hi - I'm pretty sure I'm having the same problem Phillipe had/described in this message: http://forum.world.st/Zinc-crashing-image-at-start-up-td3785797.html At least the PharoDebug.log is the same. It happens on both the most recent Cog and interpreter VM. Is there a way to recover from this? I could follow Sean's instructions from this thread if necessary: http://forum.world.st/Fwd-Oops-I-put-a-halt-in-a-startup-method-td3800729.h… Or is there a way to extract changes from a changes file for one image into another image? I'd rather fix the broken image but if its not possible I'd then just try to load those changes I don't have. Thanks for any guidance you can provide. Paul

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[update 2.0] #20301
by Esteban Lorenzano Sept. 24, 2012

Sept. 24, 2012

2.0.20301 --------- The following changes have been integrated: Issue 6728: infinite recursion on startup preferences. http://code.google.com/p/pharo/issues/detail?id=6728 Issue 6723: Improve Collection Streaming http://code.google.com/p/pharo/issues/detail?id=6723 Issue 6715: RPackageSet is not backwards compatible http://code.google.com/p/pharo/issues/detail?id=6715

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Get the point of Intersection for Morphs
by irfankhan1 Sept. 24, 2012

Sept. 24, 2012

I have a new class for Circle Morph which has a step method that increases the diameter. step self extent: self extent +1. (self extent )>(400@400) ifTrue: [self stopStepping] b:=CircleAnimeMorph new // new class for Circle Morph b openInWorld b startStepping b1:CircleAnimeMorph new b1 openInWorld b1 startStepping. So when these both Circles meet i wanna get the Intersecting point,idk how to implement this can any one help? -- View this message in context: http://forum.world.st/Get-the-point-of-Intersection-for-Morphs-tp4646066.ht… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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KaiProfiler + Pharo 1.4 cpu usage/Transcript
by Paul DeBruicker Sept. 23, 2012

Sept. 23, 2012

Hi - If the transcript is open and I hover over the KaiProfiler window the Transcript is filled with mouseover information and my CPU goes to ~85%. If the transcript is closed and I hover over a my CPU runs a 2-3x what an idle Pharo-1.4 shows on my system. The transcript is filled with stuff like this: mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@410) mouseOver nil nil] -- nil -- nil mouseOver: [(2809.0@407) mouseOver nil nil] -- nil -- nil mouseOver: [(2804.0@402) mouseOver nil nil] -- nil -- nil mouseOver: [(2791.0@393) mouseOver nil nil] -- nil -- nil Is there a way to shut that off so I can have the Transcript open while viewing a profiler run? I loaded Spy by following the instructions on the Moose website. Thanks Paul

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Re: [Pharo-users] Spec package
by Sean P. DeNigris Sept. 22, 2012

Sept. 22, 2012

Ernesto Bossi wrote > Hi, i'd like to know where can i get the lastest package for Spec in Pharo > and some documentation/tutorials to get started with this framework? > > > Thanks in advance -- View this message in context: http://forum.world.st/Spec-package-tp4647870p4647973.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Spy & Pharo-1.4 MONLinearColorNormalizer>>#minimumValue: intermittent error
by Paul DeBruicker Sept. 21, 2012

Sept. 21, 2012

FYI - Sometimes when running an analysis the calculation to set the color of a box in the view (Roassal/Mondrian ?) gets messed up because the result of the MONLinearColorNormalizer>>#minimumValue: send is 'Float infinity negated' I'd guess that for that method you'd never want it to be below 0 or at least bounded in some fashion.. I have not seen the error happen twice in a row.

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[update 2.0] #20298
by Esteban Lorenzano Sept. 20, 2012

Sept. 20, 2012

2.0.20298 --------- The following changes have been integrated: Issue 6651: left cursor key in PluggableTreeMorph is not to standards http://code.google.com/p/pharo/issues/detail?id=6651

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Pharo usage poll
by Esteban Lorenzano Sept. 20, 2012

Sept. 20, 2012

Hi guys, I created a small poll to know which versions of pharo are you using and with which purpose... can you be so kind and fill the form? is really small and can provide some insights about further directions :) https://docs.google.com/spreadsheet/viewform?fromEmail=true&formkey=dFZKeXU… Thanks, Esteban

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