November 2011 - Pharo-users

funny idea Symbol vs. Selector
by stephane ducasse May 14, 2015

May 14, 2015

Hi guys I'm thinking aloud... I was wondering if we could not take advantage of a new class: Selector. MethodDict would only contain selectors and not symbols. I remember that I talked about that with hernan. Stef

8 27

Package browser?
by Rob Vens June 28, 2013

June 28, 2013

I am attempting to do the Pharo by Example book, but a package browser (which is used in the examples) is not in the 1.1.1 or 1.2 image. Should I still use categories? If I create a package in Monticello browser I am not able to add classes or anything (not as far as I could see). Just starting out using Pharo, so apologies if these questions are already answered elsewhere.

12 22

Actors library
by Alex Schenkman Jan. 24, 2012

Jan. 24, 2012

Hi list, Is there an Actors library already available in Pharo? The part I'm interested in is the asynchronous message passing. If it has been done already, why not reuse? Thanks in advance!

4 3

[COTDC] 72 - TMorphTreeModel
by laurent laffont Dec. 4, 2011

Dec. 4, 2011

Today: TMorphTreeModel Comment Of The Day Contest - One Day One Comment Rules: #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s). #2: If you cannot comment it, deprecate it. Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest Laurent

3 5

portable smalltalk, how ?
by t olschewski Dec. 4, 2011

Dec. 4, 2011

(read "portable" as "running with no changes on as many smalltalk platforms as possible") I know that a certain level of portability is achieved by the ansi standard. But what if: ... the program I am going to write has GUI, graphics and network access, ... may either take command line arguments or not, ... must handle cr-lf-crlf or even UTF - and I still want it to be as portable (in the above sense) as possible. seaside, grease, or sport - or something different? Or something yet to be written? -- View this message in context: http://forum.world.st/portable-smalltalk-how-tp4118832p4118832.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

7 11

Full Screen Button would be nice
by Ted F.A. van Gaalen Dec. 3, 2011

Dec. 3, 2011

Hi there Thanks for creating version 1.3 !!!!!!! -loaded Seaside into it. -did a file-in of my Seaside pages Works. OK Still missing: What I really would like perhaps in the next release a Full Screen Toggle Button somewhere on the desktop.. or -like in the Chrome Internet Browser could you assign it to the F11 key? just an idea. Don't understand why it is hidden in Settings browser>>appearance>>desktop (IMHO it does not belong there at all it's not a Setting but just a window state..) For now, I've solved this by creating this little helper, which, due to my laziness to give it coordinates, drops a button in the upper left corner. Mais enfin, it works. The class: SimpleButtonMorph subclass: #FullScreenFlipFlopMorph instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'TGUtil-One' with just this two instance methods: initialize super initialize. self target: self; label: 'Full Screen'; color: Color orange; actionSelector: #toggle; openInWorld "target is self is Smalltalk;" toggle Display toggleFullScreen In a workspace brought to life with evaluating fullScreenFlipFlop := FullScreenFlipFlopMorph new. Another question: As 1.3 uses a cog VM. Is the seasidehosting.st still using a non-cog VM? This would imply a cog VM based image would not run on the seasidehosting? What happened to the user window styles? (I only see Default and DemoMode) I liked the sort of Aqua themes (I have 7 apples, they are real and in the kitchen :o) Kind Regards TedvG

8 17

Mocking framework
by Juan Ignacio Vaccarezza Dec. 1, 2011

Dec. 1, 2011

Hi all, Which mocking framework would you recomend? Regards, Juan

2 2

Test execution cancel
by Juan Ignacio Vaccarezza Nov. 29, 2011

Nov. 29, 2011

Hi all, Is there any way to stop the test cases execution once the started? Regards, Juan

3 4

installer on l*n*x ?
by t olschewski Nov. 29, 2011

Nov. 29, 2011

where are the installer scripts of pharo and squeak ? earlier squeak versions installed themselves quite comfortably with /bin/sh INSTALL (squeak 3.9) oder make install (3.10) I need pharo system-wide with a default image residing in a default location like /usr/local/lib/... and the executable in a default location /usr/local/bin/, -plugin path, vm parameters etc. - am I expected to do all this manually and to repeat this anytime I want to upgrade ? -- View this message in context: http://forum.world.st/installer-on-l-n-x-tp4104740p4104740.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

4 7

Pharo By Example - VM issues
by Johan Fabry Nov. 28, 2011

Nov. 28, 2011

Hi all, I'm evaluating PBE (1.0) because my nephew is starting to get interested in programming :-) There is a VM issue though: the PBE website refers the pharo website to download the VM, and the only VM I can find is in the 1.3 download page. This VM however crashes with the PBE image (MacOS). It works with the latest squeakvm (non-cog) though. I think, as a minimal-effort patch, it would be good to have the PBE website refer to squeakvm.org and clearly indicate that to run the PBE image a non-cog VM should be used. Idem on the pharoproject website. Greetings, ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

2 3

Fwd: [Pharo-project] INRIA Postdoc position: security in dynamic languages
by Mariano Martinez Peck Nov. 26, 2011

Nov. 26, 2011

---------- Forwarded message ---------- From: stephane ducasse <stephane.ducasse(a)free.fr> Date: Sat, Nov 26, 2011 at 4:55 AM Subject: [Pharo-project] INRIA Postdoc position: security in dynamic languages To: An open mailing list to discuss any topics related to an open-source Smalltalk <Pharo-project(a)lists.gforge.inria.fr> Postdoc Position â¢ Duration: 3 years â¢ Starting date: end 2011 â¢ Where: RMOD team at INRIA Lille Nord Europe http://rmod.lille.inria.fr â¢ Salary: 55 Keuros net (before taxes) Keywords: dynamic languages, security, information flow, Smalltalk, Javascript The position will take place in the context of the Systematic Resilience project. We will focus on the following main tasks: â¢ Identification and understanding of security problems in Javascript and other dynamic languages â¢ Study and analyze existing approaches towards securing Javascript (Caja, isolates...) â¢ Comparison of different approaches to secure dynamic applications (Zope model, ZTK), Ruby â¢ Study of Mirrors/Capabilities as a basis for security in Javascript â¢ Proposition of an safe architecture for Resilience Please contact Stephane Ducasse (Stephane.Ducasse(a)inria.fr) for more information. http://rmod.lille.inria.fr/ http://stephane.ducasse.free.fr -- Mariano http://marianopeck.wordpress.com

1 0

Creating a FSReference
by Sean P. DeNigris Nov. 26, 2011

Nov. 26, 2011

What's the easiest way to create a reference to, say, /dev from a string? I came up with "FSFilesystem disk root resolveString: '/dev'." Anything better? Also, what's the difference between FSReference>> resolve: resolveString: ? They both seem to do the same thing in this case. Thanks. Sean -- View this message in context: http://forum.world.st/Creating-a-FSReference-tp3962401p3962401.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 4

About scheduling
by Pablo Herrero Nov. 26, 2011

Nov. 26, 2011

Hi! Is there any mean to tell the Pharo VM to not switch to any other thread ultil you can tell is safe to do so? Thx in advance!

4 7

Restoring a Morph's Default Mouse Handling
by Sean P. DeNigris Nov. 25, 2011

Nov. 25, 2011

I always forget how to do this, so I added a chapter to the online book: As soon as you define #handlesMouseDown: in your Morph subclass, you lose the default behavior where a morph is picked up when clicked on. To restore this behavior, compile the following two methods in your morph class: mouseDown: anEvent anEvent hand waitForClicksOrDrag: self event: anEvent. startDrag: anEvent anEvent hand grabMorph: self. http://book.pharo-project.org/book/LanguageAndLibraries/GUI/restoringdefaul… -- View this message in context: http://forum.world.st/Restoring-a-Morph-s-Default-Mouse-Handling-tp4097353p… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 1

Re: [Pharo-users] VSE ObjectFiler / VW BinaryObjectStorage
by Marcus Denker Nov. 25, 2011

Nov. 25, 2011

On Nov 25, 2011, at 4:17 PM, Chantal Thibodeau wrote: > Hi > > I'm trying to migrate VSE / VW code to Pharo. I have some "serialized" objects "dumped" with a class called ObjectFiler (VSE) or BynaryObjectStorage (VW). > > Those files are index files. They were "dumped" for a quick reload. > > I'm looking and I cannot find something similar in Pharo. Will I have to transfer those files to something else. > > I appreciate your help. > Fuel might be the best for storing objects on disk and loading them *fast*: http://rmod.lille.inria.fr/web/pier/software/Fuel -- Marcus Denker -- http://marcusdenker.de

1 0

scripting pharo
by t olschewski Nov. 25, 2011

Nov. 25, 2011

is there a standard way of using pharo 1.3 OneClick (or squeak 4.2 All-in-One) for scripting tasks ? With python, I simply: * write a script foo.py * use extra classes by writing "import xyz" * run "python foo.py" or even simpler: * #!/usr/bin/python -- View this message in context: http://forum.world.st/scripting-pharo-tp4089006p4089006.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 4

Shrink Wrapped Window
by Sean P. DeNigris Nov. 24, 2011

Nov. 24, 2011

I want a Window that shrinks to fit its contents, like a PluggableDialogWindow, but that has a title bar and buttons, like a Standard Window. Any ideas? Thanks. Sean -- View this message in context: http://forum.world.st/Shrink-Wrapped-Window-tp4102643p4102643.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 2

pharo wrapper script suggestion and a question
by t olschewski Nov. 24, 2011

Nov. 24, 2011

what do you think about modifiying the wrapper script pharo.sh (OneClick edition) slightly in order to alleviate scripting: a) pharo.sh: passing "$@" over to pharo: ... exec "$BASE/pharo" \ ... ... "$ROOT/Contents/Resources/pharo.image" \ "$@" b) making a second script, pharo-headless.sh: ... exec "$BASE/pharo" \ -headless \ ... ... "$ROOT/Contents/Resources/pharo.image" \ "$@" Test: pharo-headless anyScript.st And another Question: is there a better way of forcing "pharo -headless" to quit, better than writing "WorldState quitSession." in every script ? -- View this message in context: http://forum.world.st/pharo-wrapper-script-suggestion-and-a-question-tp4099… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 2

Moving package extension methods into new package
by Sean P. DeNigris Nov. 23, 2011

Nov. 23, 2011

I wanted to move all the extension methods from a package into another package. I came up with the following. Is there a better way? oldPackageName := 'LivingCode-bdd extensions'. newPackageName := 'BDDExtensions'. package := PackageInfo named: oldPackageName. extendedClasses := package extensionMethods collect: [ :e | e methodClass ] as: Set. extendedClasses do: [ :c | c organization renameCategory: '*', oldPackageName toBe: '*', newPackageName ]. -- View this message in context: http://forum.world.st/Moving-package-extension-methods-into-new-package-tp4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

1 0

Oops... there, that's better
by Sean P. DeNigris Nov. 22, 2011

Nov. 22, 2011

errorWindows := World windowsSatisfying: [ :w | (w label beginsWith: 'MessageNotUnderstood') and: [ w label includesSubString: 'MouseMoveEvent' ] ]. errorWindows size. "212" errorWindows do: [ :e | e delete ]. -- View this message in context: http://forum.world.st/Oops-there-that-s-better-tp4097545p4097545.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

1 0

process priority
by t olschewski Nov. 22, 2011

Nov. 22, 2011

I've some more questions: 1. is there a way to run "do-it"s and other user activity at a priority of 40, say, by default ? I know I can say "p := [ ... lenghty ...] forkAt: 40" and "p terminate" anytime in order to prevent user interface from freezing. 2. are my "forkAt:" processes supposed to appear in the Process Browser and if yes: where do I find them ? 3. If I open a workspace and a Transcript in a new (1.3-13315) image and run: p := [ 1 to: 10 do: [ :n | Transcript show: n; cr; cr; show: n factorial; cr; cr ]] forkAt: 40. then everything works fine. If I replace 10 by 1000 (don't do this yourself) then sometimes after a while the Transcript window turns red with two yellow lines and a debug window pops up with varying errors (mostly "subscript out of bounds"). Then again, in some cases it runs with no error. I have seen this in squeak 4.2, too. -- View this message in context: http://forum.world.st/process-priority-tp4092574p4092574.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 8

GlorpDBX
by Jonathan Kelly Nov. 22, 2011

Nov. 22, 2011

Hi, feeling particularly stupid right now. Been trying to get Glorp DBX working with Postgresql for the last 2 hours and I'm busted. It took me about an out just to find out how to load and configure things. ugh. It took me a while to work out I had to actually install OpenDBX (doh). So I have downloaded that and added the directory to my PATH. So I'm trying to run the tests and I get DBXFatalError: FATAL OpenDBX: Loading backend library failed. I know it's finding OpenDBX, because when I move the OpenDBX folder, I get a different error - "Error: External Module Not Found" from apiInitialize (and I can see it's trying to load libopendbx-1.dll). Part of my problem is squeakdbx.org domain expired on 09/27/11 and is now a godaddy parking page. double ugh. Anyone got any ideas? I'm running a fresh 1.3 using CogVM-Win-13307 install on Windows XP. Jonathan.

3 6

Loading projects and building your own images with Metacello
by Mariano Martinez Peck Nov. 21, 2011

Nov. 21, 2011

Hi. I usually don't advertise my blog, but I think this post may be interesting to some of you: http://marianopeck.wordpress.com/2011/11/19/loading-projects-and-building-y… Cheers, -- Mariano http://marianopeck.wordpress.com

2 1

OSProcess reading utf8 files
by Francois Stephany Nov. 20, 2011

Nov. 20, 2011

Hi, Reading an utf8 file with OSProcess results in some weird characters showing up. (PipeableOSProcess command: 'less /path/to/a/text/file') output. -> inspect the bytestring and get some non-ascii characters fucked up. Doing `less /path/to/a/text/file` in a terminal displays the file fine. That's probably something stupid on my side but I cannot get it working. Any idea ? Cheers, Francois

3 2

Something like XDV/Diazo/Deliverance in Smalltalk?
by Offray Vladimir Luna CÃ¡rdenas Nov. 18, 2011

Nov. 18, 2011

Hi, Me and a group of friends in a local hackerspace[1] want to intervene the interface of this Cynin site using the technologies of Diazo[2], Xdv[3] or Deliverance[4]. Seeing the way that views are wrote in Seaside I wondder if there is someway to make a similar intervention/integration of interface without touching directly the code a la Diazo/XDV/Deliverance but using Seaside/Zinc or some similar combination. [1] http://hackbo.co/ [2] http://diazo.org/index.html [3] http://www.enfoldsystems.com/software/proxy/docs/6.0/xdvtutorial.html [4] http://packages.python.org/Deliverance/ Any pointer will be appreciated. Cheers, Offray

1 0