August 2012 - Pharo-dev - lists.pharo.org

[Pharo-project] New feature in Nautilus
by Benjamin Aug. 6, 2012

Aug. 6, 2012

Hello guys :) I just wanted to show you the new feature I just finished to implement into Nautilus: the multi methods edition http://dl.dropbox.com/u/24369478/MultiMethods.mov The video is quite short (1min) but it will be integrated soon in the image so ;) Some explanation: - now you can "pin" a text area, it will "freeze" the context, so you can edit it and save it without problems - you can have a many as wanted - the scroll pane is a bit clever to always keep the maximum size for the current edition (but there are splitters, so you can set it as you want) - you can "unpin" a text area, and it closes it (to add: check if there are pending changes) - the glitch about the color is the video has been fixed already (but I am too lazy to make another video ^^) - the frozen area get a help text which tells the method the source code comes from - the corresponding button have the same help text - clicking on the button jump to the method I hope you will enjoy it, and as usual if you have cool ideas, let me know ;) Ben

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[Pharo-project] using color tables with forms and bitblt?
by Lawson English Aug. 6, 2012

Aug. 6, 2012

OK, I'm such a noob here, that I'm not quite sure how to ask my question... I have a "dwell file" -an array of values generated by a Mandelbrot Set application, one per pixel, with arbitrary values between 1 and xxxxxxxxxxx (currently less than 2 billion, and right now far less than 1,000,000)- and I would like to use them, suitably tweaked, as indices into a ColorMap. The ColorMap need not have 1,000,000 entries. No-one can see that many color differences in a Mandelbrot set anyway. I can generate an array of Color (ColorArray?) but I'm not sure how to use them to create the ColorMap, and I'm not sure how to use the ColorMap to speedily change what is drawn in the first place. Right now, I'm creating a color dictionary and drawing via: 1 to: 800 do: [:y| 1 to: 800 do: [:x| |i| i := x+ ((y-1) *800). aForm colorAt: x@y put:( myDictColors at: (myArray at: i )).] ]. where myDictColors is a dictionary whose keys are the dwells listed in the dwell array file and whose values are Color objects from my array of colors. Drawing the above takes about 1.5 seconds, which is a bit slow. I'd like realtime-ish updating as I play with colors in the palette. Can this be done, at least up to the 4096 color limit that BitBlt has for ColorMaps? If so, how? I've been trying to figure out the various classes and I'm stumped. Thanks -- Squeak from the very start (introduction to Squeak and Pharo Smalltalk for the (almost) complete and compleate beginner). https://www.youtube.com/playlist?list=PL6601A198DF14788D&feature=view_all

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[Pharo-project] Spec 1.1 in Pharo 1.4
by Sean P. DeNigris Aug. 6, 2012

Aug. 6, 2012

I updated my to Spec 1.1 with: Gofer new url: 'http://ss3.gemstone.com/ss/Spec'; package: 'ConfigurationOfSpec'; load. ((Smalltalk at: #ConfigurationOfSpec) project stableVersion) load: 'full'. And I'm getting a weird error [1]. The weird part is that if I go to Array>>sorted: in the call chain, the argument value is "false", but if I go one back and inspectIt "sortingBlockHolder contents", I get [ :a :b | true ] Image: Pharo1.4 [Latest update: #14453] False(Object)>>doesNotUnderstand: #value:value: Receiver: false Arguments and temporary variables: aMessage: value: a JenkinsJob value: a JenkinsJob exception: MessageNotUnderstood: False>>value:value: resumeValue: nil Receiver's instance variables: false Array(ArrayedCollection)>>mergeFirst:middle:last:into:by: Receiver: an Array(a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a J...etc... Arguments and temporary variables: first: 1 middle: 1 last: 2 dst: an Array(a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob ...etc... aBlock: false i1: 1 i2: 2 val1: a JenkinsJob val2: a JenkinsJob out: 0 Receiver's instance variables: an Array(a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a JenkinsJob a J...etc... -- View this message in context: http://forum.world.st/Spec-1-1-in-Pharo-1-4-tp4643356.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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[Pharo-project] Smalltalks 2012 - 6th International Conference on Smalltalk Technologies - Call for papers
by Jorge Ressia Aug. 6, 2012

Aug. 6, 2012

[Apologies if you receive multiple copies of this Call for Papers] CALL FOR PAPERS SMALLTALKS 2012 6th International Conference on Smalltalk Technologies http://www.fast.org.ar/smalltalks2012 Research Track: Call for Papers - http://scg.unibe.ch/wiki/events/smalltalks12 November 3th - 5th, 2012 Important dates: Submission (Hard Deadline): September 17th, 2012 (Argentinian time: UTC/GMT -3 hours). Notification of acceptance: October 8th, 2012. Camera Ready Submission: November 2nd, 2012. --------------------------------------------------------------------------------- Conference Location: Universidad Nacional de Quilmes (Argentina) The Smalltalks series of conferences (www.fast.org.ar) is a lively forum on Smalltalk-based software technologies that brings together more than 200 people from both academia and industry for a period of three days. Past editions of Smalltalks have included many high-quality presentations from industry and research. These contributions have shown interesting applications of Smalltalk, advances in the Smalltalk language, didactic uses of Smalltalk and so on. Similar to last year, Smalltalks 2012 will include a dedicated research track. We welcome submissions to this research track presenting original scientific contributions to, or using, Smalltalk in general. Topics of interest include, but are not restricted to: - Aspects, Aspect Languages and Applications. - Ambient Intelligence, Ubiquitous / Pervasive Computing and Embedded Systems. - Compilation Technology, Optimization, Virtual Machines. - Educational Material. - Language Engineering, Extensions. - Model Driven Engineering / Development. - Meta-Modeling, Reflection and Meta-programming. - Programming in the Large, Design, Architectures and Components. - Programming Environments, Browsers, User Interfaces, UI Frameworks. - Source-code analysis and manipulation (Static analysis, refactoring, type inference, metrics). - Team Management. - Testing, Extreme Programming / Practices. - Web Services, Internet Applications, Event-driven Programming. - Experience Reports. Important dates: Submission (Hard Deadline): September 17th, 2012 (Argentinian time: UTC/GMT -3 hours). Notification of acceptance: October 8th, 2012. Camera Ready Submission: November 2nd, 2012. Papers: Papers should be written in English, in PDF-format and should not exceed 15 pages (including references and figures), using the JOT journal format. Templates for LaTeX formats can be found at http://www.jot.fm/authors.html Papers must be submitted through the EasyChair submission web site at http://www.easychair.org/conferences/?conf=smalltalks12 The accepted papers will be digitally available on the conference website. We are currently negotiating a special edition of a journal for which the best papers will get invited. Papers submitted must not have been previously published and must not be under review for publication elsewhere. Papers must strictly adhere to submission guidelines. If you have questions, please send an e-mail to Jorge Ressia (ressia(a)iam.unibe.ch) Special Issue Publication -------------------------- The best papers will be invited to submit an extended version of their work in a special issue of the International Journal JOT (The Journal of Object Technology), http://www.jot.fm/ Program Committee -------------------------- - Alexandre Bergel (DCC, Universidad de Chile, Chile) - Andy Kellens (Vrije Universiteit Brussel, Belgium) - Coen De Roover (Vrije Universiteit Brussel, Belgium) - Damien Cassou (Hasso-Plattner-Institut, Potsdam, Germany) - Gabriela Arevalo (Universidad Nacional de Quilmes, Argentina) - Gonzalo Zabala (Universidad Abierta Interamericana, Argentina) - Hernan Wilkinson (Universidad de Buenos Aires, Argentina) - Jannik Laval (INRIA Lille/LABRI Bordeaux, France) - Johan Fabry (DCC, Universidad de Chile, Chile) - Luc Fabresse (Ecole des Mines Douai, France) - Lukas Renggli (Google, Switzerland) - Marcus Denker (INRIA Lille, France) - Mircea Lungu (University of Bern, Switzerland) - Noury Bouraqadi (Ecole des Mines Douai, France) - Serge Stinckwich (Institut de recherche pour le developppement, France) - Tudor Girba (Sw-eng. Software Engineering GmbH, Switzerland) Program Chair -------------------- Jorge Ressia (Univeristy of Bern, Switzerland) -- Jorge Ressia www.jorgeressia.com

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[Pharo-project] OComplection
by Camillo Bruni Aug. 6, 2012

Aug. 6, 2012

the more time I spend with OCompletion the more I think it's the wrong model: NECompletion provides in many cases way better / quicker results NOCompletion does tons of magic to increase the chances of a correct hit, neglecting - self sends - super sends - ClassSends which is basically the main source for getting nice input... I think NOCompletion should be removed. The only thing that might maintain is a Database which will give back a date for a given selector so we can sort them accordingly. But IMO that can be solved muuuuch easier. Things against NOCompletion: - not documentation whatsoever (no class comments no comments no categories... nada) - totally breaks type completion (self sends usw...) - duplication of NECompletion... Since I don't see anybody maintaining this dead body we should remove it from the system!

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[Pharo-project] interesting incompatibility between squeak 4.3 and Pharo 1.4
by Lawson English Aug. 6, 2012

Aug. 6, 2012

I've been playing with NativeBoost so a lot of my development time has been in Pharo. I was having problems with simple syntax so I decided to fileout my class and test it in the latest squeak. A problem: class AlphaImage doesn't exist in squeak, so the filein process ended up defining my class to be a subclass of ProtoObject... OK, sorta makes sense: don't guess, just give the lowest possible point in the hierarchy. Even so, the first time I tried to create an instance of the class, I recived debugging messages complaining about how the object didn't understand the message newForm:, as you might expect... then the debugger itself kept on popping up the same error message as I tried to enter the debugger window. Working as intended? Anyway, just an interesting gotcha when programming in Pharo and porting back to squeak. L -- Squeak from the very start (introduction to Squeak and Pharo Smalltalk for the (almost) complete and compleate beginner). https://www.youtube.com/playlist?list=PL6601A198DF14788D&feature=view_all

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[Pharo-project] New feature in Nautilus
by Torsten Bergmann Aug. 6, 2012

Aug. 6, 2012

Not able to display it on small device. Why *.mov format and not something easily accessible like putting it on youtube, vimeo, ...? Thx T.

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[Pharo-project] ss3 down
by Esteban Lorenzano Aug. 6, 2012

Aug. 6, 2012

looks down... :( http://www.downforeveryoneorjustme.com/ss3.gemstone.com

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[Pharo-project] Differential and Integral calculus in Pharo?
by Clara Allende Aug. 6, 2012

Aug. 6, 2012

Hi guys, after having exhausting four months of Physics lessons, I decided that would be fun to write a program to deal with Electricity problems :) (Yeah, I'm not a normal person :P) So, I need to make differential and integral calculus, are there any libraries to do so? Or any place that I can take a look at? Thanks in advance! Cheers

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[Pharo-project] ScriptManager MNU #yellowButtonMenu
by Torsten Bergmann Aug. 5, 2012

Aug. 5, 2012

It works without a problem in Pharo 2.0. In Pharo 1.4. it worked a month ago - but with the new summer release of Pharo the "ParagraphEditor" is now thrown out and a switch to "SmalltalkEditor" is required. I fixed it. So if you download a new Pharo 1.4 from the homepage then try the "ConfigurationOfScriptManager-tbn.19" which is available from the config browser. Lesson learned: when we provide a new update on an already existing Pharo version (like the summer update release for 1.4 then we should check for compatibility or check all configs for this version) Bye T.

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