December 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] sharedPools
by StÃ©phane Ducasse Dec. 13, 2011

Dec. 13, 2011

Hi guys I would like to see how we can clean the protocols. Behavior>>sharedPools "Answer a Set of the names of the pools (Dictionaries) that the receiver shares. 9/12/96 tk sharedPools have an order now" ^ OrderedCollection new => I will update the comment (this is not a set nor with names!) => I would like to move down to classDescription such methods because all the other methods are defined there or in Class. Class>>sharedPools "Answer a Set of the pool dictionaries declared in the receiver." sharedPools == nil ifTrue: [^OrderedCollection new] ifFalse: [^sharedPools] => I will update the comment TraitBehavior>>sharedPools ^ Dictionary new oops! I would be good to have polymorphic results! I will return ^ OrderedCollection new Now I'm not sure if it makes sense (but this is probably better) that RBClass returns also a polymorphic results. I have the impression that we get an orderedCollection too. RBClass>>sharedPools ^ self allPoolDictionaryNames collect: [ :each | Smalltalk globals at: each asSymbol ifAbsent: [ Dictionary new ] ] Ring seems to miss sharedPools. Stef

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[Pharo-project] Script to migrate from squeaksource to squeaksource3
by Benjamin Dec. 13, 2011

Dec. 13, 2011

Hello guys, I would like to know if there is a way to script the creation of project on ss3 and the migration from ss to ss3. Cause it's well known that I am a lazy ass, and I do not want to have to recreate each project one by one by hand :) And I am pretty sure not to be the one trying to run away from squeaksource ;) Ben

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Re: [Pharo-project] Scat - Public Release and announcement
by Marcus Denker Dec. 13, 2011

Dec. 13, 2011

On Dec 13, 2011, at 12:11 PM, Serge Stinckwich wrote: > > Serge, the thing is that the code in Scratch is terribly bad... maintaining it is close to impossible. The project was coded by several different students with different coding styles and barely any Smalltalk experience. They took advantage of bugs in the old Squeak version used to build Scratch, and mixed view and controllers so hard one can barely distinguish them at all. We've made our best to get what we could to work in Pharo, but we never tried to make the code better. > > You are definitively right Bernat, this is a good example that even in Smalltalk, this is possible to write nightmare code. Do we need another example after etoys? I really would have expected that someone involved in the original etoys would have known better than to *again* let a code base degenerate to the point that it is completely unmaintainable... Marcus -- Marcus Denker -- http://marcusdenker.de

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[Pharo-project] Progress bar
by StÃ©phane Ducasse Dec. 13, 2011

Dec. 13, 2011

Hi I was looking how we could improve the situation of the progress bar. We could "simply" remove some annoying updates (I did some first analysis because I got tired of this). I will try to continue so that we have less updates all the times. Now what I see is that there is also an architectural problem. I will try to explain it: each method in different classes (change set, MCloader, FileStream), can be used in different scenarios and depending on the path you want or not to raise feedback. A bad solution would be to duplicate the method and pass a boolean to indicate whether the feedback should be raised or not. Now I have the impression that the architecture should be: - the different part raised events (but this is not clear how) - the top level (the part launching) can absorb and aggregate event to give feedback. I do not know if it makes sense. Do you know how this is done in other systems. Stef

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Re: [Pharo-project] [ANN] Eclipse Icons for Pharo
by Fernando Olivero Dec. 13, 2011

Dec. 13, 2011

Nice! As soon as squeaksource is up, i will import them using the icon importer, so we can give them a try. Fernando On Mon, Dec 12, 2011 at 6:29 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > http://www.famfamfam.com/ > ? > > > >> Hi Fernando, >> >> oops... I forgot your icon importer, sorry :P >> >> I would like âfor a futureâ to integrate it to pharo and replace current ThemeIcons with an icon strategy based on your package... maybe that is the best "future scenario" for icons. >> >> best, >> Esteban >> >> El 11/12/2011, a las 8:49a.m., Fernando Olivero escribiÃ³: >> >>> Hi Esteban, nice work! >>> For importing the icons you can use the toolset i've developed: it >>> automates completely the process of importing a complete set of icons >>> of a given family. >>> >>> ExternalIconFamily @ squeaksource. >>> I've used it for importing the Oxygen icon set, and others (you can >>> google the list for previous related emails). >>> >>> Fernando >>> >>> On Sun, Dec 11, 2011 at 10:38 AM, StÃ©phane Ducasse >>> <stephane.ducasse(a)inria.fr> wrote: >>>> Esteban >>>> I know that feeling :) >>>> >>>> :) >>>> Now I'm not sure that I would like to carry the Eclipse License around in Pharo :) >>>> What are the other icons sets we could use with a nice license and we do it :). >>>> famfam? >>>> >>>> We should clean also the old icons because some are really old. >>>> Thanks for pushing that. I would love to have new icons for Pharo. >>>> Stef >>>> >>>> >>>> >>>> On Dec 11, 2011, at 3:15 AM, Esteban Lorenzano wrote: >>>> >>>>> Hi, >>>>> >>>>> Today I was bored and not wanting to think too much... but I wanted to do something for Pharo... and I never liked the current Pharo icons, so I took one icon library I really like and changed all needed icons (well... all that I saw). >>>>> Here a couple of screen shots: >>>>> >>>>> <Captura de pantalla 2011-12-10 a la(s) 23.05.55.png> >>>>> <Captura de pantalla 2011-12-10 a la(s) 23.06.20.png> >>>>> >>>>> Of course, I don't think they are perfect (also maybe I didn't pick the best icons), but I think they look a lot better than the older. >>>>> >>>>> If you want to see how they look, this are the packages: >>>>> >>>>> for Pharo 1.3: >>>>> >>>>> <Eclipse-Icons-EstebanLorenzano.2.mcz> >>>>> >>>>> for Pharo 1.4: >>>>> >>>>> <Eclipse-Icons-EstebanLorenzano.4.mcz> >>>>> >>>>> >>>>> Then you execute: >>>>> >>>>> ThemeIcons initializeIcons. >>>>> World resetWorldMenu. >>>>> >>>>> ... and enjoy your new icons :) >>>>> >>>>> btw... this icons are in an open-source license, the EPL: http://www.eclipse.org/legal/epl-v10.html >>>>> so, maybe âif all agreeâ, we can add this icons to regular distribution :) >>>>> >>>>> best, >>>>> Esteban >>>>> >>>> >>>> >>> >> >> >

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Re: [Pharo-project] native boost is the best thing since COGVM
by Fernando Olivero Dec. 13, 2011

Dec. 13, 2011

A taste of what will be available: rendering the same GLabel (the gaucho equivalent to StringMorph), scaling the CairoCanvas. Pesudo Code: "create a label" label := GLabel on : 'hello Pango-Cairo'. "draw it on the canvas" label drawOn: canvas. "scale the canvas" canvas translateBy: aDelta ; scaleBy: aScale. "draw it on the canvas" label drawOn: canvas. "repeat" On Sun, Dec 11, 2011 at 7:43 PM, Javier PimÃ¡s <elpochodelagente(a)gmail.com> wrote: > Cooool!!! > > On 12/11/11, Fernando Olivero <fernando.olivero(a)usi.ch> wrote: >> I was able to create the binding to Pango using NB. >> >> The ultimate goal is to provide a cleaner implementation of "text" widgets. >> >> Thanks Igor ! >> >> Fernando >> > > > -- > Lic. Javier PimÃ¡s > Ciudad de Buenos Aires

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[Pharo-project] Sprint friday 16 of december
by StÃ©phane Ducasse Dec. 13, 2011

Dec. 13, 2011

Hi guys we want to code and fix stuff for pharo. We will organize a christmas sprint at Lille. You are welcomed, just let us know if you want to participate. We will start at 9h we will indicate if we do it in our building or the INRIA one. Stef

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[Pharo-project] Big Image Tests
by Sven Van Caekenberghe Dec. 13, 2011

Dec. 13, 2011

Today I tried to find out if it would be possible to allocate a large amount of memory in a VM. I used the official 32-bit VM (http://gforge.inria.fr/frs/download.php/29042/CogVM-Unix-13307.zip) and a Pharo 1.3 (http://gforge.inria.fr/frs/download.php/29273/Pharo-1.3-13315.zip) derived image on Ubuntu 11.04 (x86_64) Amazon AWS EC2 m1.large instance (about 8Gb RAM) and the following bash and Smalltalk scripts: run.sh #!/bin/bash script_home=$(dirname $0) script_home=$(cd $script_home && pwd) image=$script_home/pharo-t3.image script=$script_home/run.st args=$* vm=$script_home/bin/CogVM options="-mmap 1536m -vm-display-null -vm-sound-null" #echo $vm $options $image $script $args $vm $options $image $script $args run.st | args size monolithic object | FileStream stdout wantsLineEndConversion: true. Smalltalk garbageCollect. FileStream stdout nextPutAll: 'Running run.st with args: '; nextPutAll: Smalltalk commandLine arguments printString; cr; nextPutAll: Smalltalk vmStatisticsReportString. args := Smalltalk commandLine arguments. size := args first asInteger. monolithic := (args size > 1 and: [ args second = 'monolithic' ]). monolithic ifTrue: [ object := ByteArray ofSize: size * 1024 * 1024 ] ifFalse: [ object := Array ofSize: size * 1024. 1 to: size * 1024 do: [ :each | object at: each put: (ByteArray ofSize: 1024) ] ]. Smalltalk garbageCollect. FileStream stdout nextPutAll: 'Allocation of a size '; print: object size; space; print: object class; nextPutAll: ' OK'; cr; nextPutAll: Smalltalk vmStatisticsReportString. Smalltalk quitPrimitive. These were the results trying to allocate 1GB: $ ./run.sh 1024 Running run.st with args: #('1024') uptime 0h0m0s memory 49,103,224 bytes old 36,625,732 bytes (74.60000000000001%) young 9,812 bytes (0.0%) used 36,635,544 bytes (74.60000000000001%) free 12,467,680 bytes (25.400000000000002%) GCs 8 (90ms between GCs) full 2 totalling 212ms (29.400000000000002% uptime), avg 106.0ms incr 6 totalling 10ms (1.4000000000000001% uptime), avg 1.7000000000000002ms tenures 0 Allocation of a size 1048576 Array OK uptime 0h0m26s memory -1,007,414,928 bytes old -1,020,337,428 bytes (101.30000000000001%) young 5,888 bytes (0.0%) used -1,020,331,540 bytes (101.30000000000001%) free 12,916,612 bytes (-1.3%) GCs 590 (44ms between GCs) full 62 totalling 14,735ms (56.6% uptime), avg 237.70000000000002ms incr 528 totalling 10,225ms (39.300000000000004% uptime), avg 19.400000000000002ms tenures 519 (avg 1 GCs/tenure) Since last view 582 (44ms between GCs) uptime 25.3s full 60 totalling 14,523ms (57.400000000000006% uptime), avg 242.10000000000002ms incr 522 totalling 10,215ms (40.300000000000004% uptime), avg 19.6ms tenures 519 (avg 1 GCs/tenure) $ ./run.sh 1024 monolithic Running run.st with args: #('1024' 'monolithic') uptime 0h0m0s memory 49,103,216 bytes old 36,627,976 bytes (74.60000000000001%) young 9,844 bytes (0.0%) used 36,637,820 bytes (74.60000000000001%) free 12,465,396 bytes (25.400000000000002%) GCs 8 (46ms between GCs) full 2 totalling 208ms (56.1% uptime), avg 104.0ms incr 6 totalling 10ms (2.7% uptime), avg 1.7000000000000002ms tenures 0 Allocation of a size -1073741824 ByteArray OK uptime 0h0m2s memory -1,020,427,928 bytes old -1,037,112,380 bytes (101.60000000000001%) young 5,952 bytes (0.0%) used -1,037,106,428 bytes (101.60000000000001%) free 16,678,500 bytes (-1.6%) GCs 13 (177ms between GCs) full 4 totalling 725ms (31.5% uptime), avg 181.3ms incr 9 totalling 14ms (0.6000000000000001% uptime), avg 1.6ms tenures 0 Since last view 5 (386ms between GCs) uptime 1.9000000000000001s full 2 totalling 517ms (26.8% uptime), avg 258.5ms incr 3 totalling 4ms (0.2% uptime), avg 1.3ms tenures 0 Basically it seems to work. What I find particulary strange is that #vmStatisticsReportString starts reporting negative sizes, also the size of the 1GB ByteArray is reported as negative. Why ? Tomorrow I might try to find out how much further I can take this ? How close to 4GB ? Anybody else tried this ? Sven

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Dec. 13, 2011

Hi guys Lukas mentions that MenuIcons is gone without notice in 1.4. This is not really true :) It was in the deprecated13 package. Now this package which contains a lot of old old old code does not really load well in 1.4. I fileouted MenuIcons but this is not really a solution. Now since some parts of the system are really ugly, we cannot really spend time making that deprecated13 is fully working loading, but at least we could make sure that we can load it without problem. But for that it requires effort and probably the results may be a list of empty classes. So does it help you if we have that? So far having MenuIcons is working but this is ad-hoc now an automated solution does not work. Stef

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[Pharo-project] Pharo research page
by Alexandre Bergel Dec. 13, 2011

Dec. 13, 2011

Dear All, As you may know, the page http://www.pharo-project.org/about/research lists the publications related to Pharo. If you have a publication related to Pharo and want to see it listed there, send me the bibitem. Example of bibentries are http://scg.unibe.ch/scgbib?_k=4LCS3SCq&query=pharo+2011&display=bibtex Having a url field in your bibitem will enable people download your paper. 5 publications are listed for 2011. I am sure we have published more than that :-) Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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