April 2015 - Pharo-users - lists.pharo.org

Pharo is too much fun!
by Sean P. DeNigris April 21, 2015

April 21, 2015

The problem with Pharo is sometimes it's too much fun to play with objects. I could've just renamed my 5 classes via copy/paste, but I couldn't resist... classes := Smalltalk organization classesInCategory: packageName. classes do: [ :cls | | newName | newName := newPrefix, (cls name allButFirst: oldPrefix size). (RBRenameClassRefactoring rename: cls to: newName) execute ] ----- Cheers, Sean -- View this message in context: http://forum.world.st/Pharo-is-too-much-fun-tp4820809.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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SDL2 and fork
by Matthieu Lacaton April 21, 2015

April 21, 2015

Hello everyone, I tried to use the SDL2 binding to Pharo to create a very basic 2D application (just some sprites and events) and it worked great. The issue I have is that when I start my application, as long as I have an active SDL window, I can't use my Pharo image anymore (it freezes). To solve this problem I tried opening my application in another thread by doing so : [ (MyApplication new) start. ] forkAt: Processor lowestPriority. (If I don't chose a low priority it changes nothing) The problem is that even if it kind of works, it is really slow and it slows my whole operating system as well (I use windows XP) How can I fork more efficiently or open a SDL window without losing control of my image ? Thanks, Matthieu

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[ANN] ArchLinux pharo-vm / pharo-launcher packages
by Laurent Laffont April 20, 2015

April 20, 2015

Hi ArchLinux users, you can now install pharo vm on Arch with: $ yaourt pharo-vm-latest then $ pharo /path/to/your/image There's also a pharo-launcher package that depends on pharo-vm: $ yaourt pharo-launcher then $ pharo-launcher or use your favorite desktop main menu and click on the Pharo icon AUR entries: https://aur.archlinux.org/packages/pharo-vm-latest/ https://aur.archlinux.org/packages/pharo-launcher/ PKGBUILDs are versionned on https://github.com/lolgzs/pharo-aur Thanks for testing ! Regards, Laurent

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Polygons + Skybox in woden?
by Lusa Nicolas April 20, 2015

April 20, 2015

Hello, I am Nicolas Lusa from university of Lugano and I am working on my master thesis with the supervision of Yuriy Tymchuk. Right now I am working with woden and I am trying to build polygons. Question1: Is it possible somehow to build polygons in woden? If not: I know woden is based on OpenGL and I also know that in OpenGL is possible to draw polygons with GL_POLYGON and a given array of points. Question2: How could I use GL_POLYGON through woden for my purpose? Moreover, I would like to put some sort of skybox in my scene. Apparently it's not possible yet, so my question is how could I do that? Thanks in advance. Cheers. Nicolas

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fluid dynamics fully in Pharo :)
by stepharo April 20, 2015

April 20, 2015

HoneyGinger is a fluid dynamics and visualization library which can simulate moves of liquid caused by obstacles and visualize refraction by estimating angles of water surface from distribution of pressure. https://www.youtube.com/watch?v=jl6OSWUXh14 Thanks Oda for this great demo.

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exception handling problem when running tests in Nautilus
by Otto Behrens April 19, 2015

April 19, 2015

Hi, Thanks everyone for the new Pharo and all the work done. I like Spotter! I gave Pharo 4 a try today and ran into a problem with running tests in a TestCase (test class -> run tests). I just get the debugger popping up with WARequestContextNotFound. In the setUp of our test case, we call WACurrentRequestContext value, but handle the error when we do not have a context, for example: [ WACurrentRequestContext value. true ] on: WARequestContextNotFound do: [ :e | false ] This handler: "[ :e | false ]" is never called. What influences this is the exception handling in: AbstractNautilusUI >> #runTestsOfClass:notifying: Firstly, I think that it may be slighly better to call "e pass" or "e outer" in stead of "e defaultAction", as this would give another outer handler a chance to do something. The defaultAction is called when there are no more outer handlers anyway. After trying this, it did not help my cause. And I think that this is because the WACurrentRequestContext is a Notification and not an Error. I then replaced Exception with Error in the handler in AbstractNautilusUI. This seem to work. What also works is to completely remove the exception handling in AbstractNautilusUI >> #runTestsOfClass:notifying: What is a bit strange is the inconsistency in this exception handling when running a suite or an individual test. Perhaps this kind of code could be better on the TestSuite and not in the Nautilus UI? Can anyone please help? Should I be doing something else? Cheers Otto

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[ANN] Pharo 4.0 is released!
by Esteban Lorenzano April 18, 2015

April 18, 2015

Please spread widely. Sorry for multiple posts. (this post can be see here: http://pharo.org/news/pharo-4.0-released <http://pharo.org/news/pharo-4.0-released>) Dear World, Pharo 4.0 (http://www.pharo.org) is here. Pharo is a pure object-oriented programming language and a powerful environment, focused on simplicity and immediate feedback. Many things have changed in Pharo. Here are some highlights: - Inspector/Playground/Spotter are new moldable development tools for inspecting, coding and searching objects. - Slots model instance variables as first class entities and enable meta-programming on this level. - ShoreLine reporter introduces a way to report system errors and collect statistics, that we will use for future improvements - Dark theme. These are just the more prominent highlights, but the details are just as important. We have closed 1697 issues in Pharo 4. Take a moment to go through a more detailed recount of the progress: https://github.com/pharo-project/ChangeLogs/blob/master/Pharo40ChangeLogs.md Pharo is improving on many fronts, but one of the most prominent changes is the addition of moldable tools for inspection and search. These tools provide extension mechanisms that allow every object to define ways in which it can be understood effectively. To provide an idea of the impact of the already existing extensions, the map below shows the Pharo classes grouped in packages, highlighting in red those parts of the system that have at least one such custom view coming with the main distribution. The spread of these extensions shows that moldability is powerful mechanism that can be used in many contexts. Remember that Pharo is your platform. We thank all the contributors of this release: Clara Allende, Jean-Baptiste Arnaud, Jean-Christophe Bach, Philippe Back, Clement Bera, Alexandre Bergel, Torsten Bergmann, Vincent Blondeau, Noury Bouraqadi, Santiago Bragagnolo, Johan Brichau, Sven Van Caekenberghe, Damien Cassou, Nicolas Cellier, Guido Chari, Dimitris Chloupis, Andrei Chis, Ben Coman, Bernardo Contreras, Tommaso Dal Sasso, Jan Van De Sandt, Christophe Demarey, Sean DeNigris, Marcus Denker, Martin Dias, Stephane Ducasse, Stephan Eggermont, Luc Fabresse, Johan Fabry, Hilaire Fernandes, Jerome Garcia, Tudor Girba, Thierry Goubier, Jigyasa Grover, Kris Gybels, Norbert Hartl, Dale Henrichs, Pablo Herrero, Nicolai Hess, Pavel Krivanek, Juraj Kubelka, Jan Kurs, Laurent Laffont, Jannik Laval, Kevin Lanvin, Max Leske, David Lewis, Diego Lont, Esteban Lorenzano, Tim Mackinnon, Attila Magyar, Esteban Maringolo, Stefan Marr, Max Mattone, Martin Mc Clure, Eliot Miranda, Alain Plantec, Guillermo Polito, Damien Pollet, Stefan Reichhart, Mark Rizun, Udo Schneider, Ignacio Sniechowski, Henrik Sperre Johansen, Igor Stasenko, Aliaksei Syrel, Ciprian Teodorov, Camille Teruel, Sebastian Tleye, Yuriy Tymchuk, Peter Uhnak, Andres Valloud, Sven Van Caekenberghe, Thomas Vincent, Jan Vrany, Martin Walk, Richard Wettel, Dmitri Zagidulin And all those who contributed indirectly, by reporting bugs, participating in discussion threads, providing feedback... Pharo 4.0 is another big step. And, the best is yet to come. Enjoy! The Pharo Team

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[Gitfiletree] Loading development version failed
by Jan BlizniÄenko April 17, 2015

April 17, 2015

Hello Today I tried loading development version of GitGileTree, but received error: MetacelloProjectSpecLoadError: No version found for #'4.5.11' of ConfigurationOfOSProcess because: The symbolic version #'4.5.11' is not defined in ConfigurationOfOSProcess for the current platform. Possible symbolic version values include: #(#bleedingEdge #stable) Loading code is: Gofer new url: 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo40/main'; configurationOf: 'GitFileTree'; loadDevelopment. Stable version loads fine. Jan -- View this message in context: http://forum.world.st/Gitfiletree-Loading-development-version-failed-tp4820… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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State of Slots
by Peter UhnÃ¡k April 17, 2015

April 17, 2015

Hi, what is the current state of slots? I found a message by Marcus that it's not ready but that was December; has anything changed? Is there some tutorial/examples? Are there known problems? Thanks, Peter

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communicating pharo 4.0
by Tudor Girba April 17, 2015

April 17, 2015

Hi, In case you were wondering about the details behind the visualization that came with the Pharo 4.0 announcement, here is a more detailed explanation: http://www.humane-assessment.com/blog/communicating-pharo-4-0 Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow"

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