May 2012 - Pharo-users - lists.pharo.org

ZnClient>>#close & socket semaphores
by Paul DeBruicker June 1, 2012

June 1, 2012

I ran into an out-of-external semaphores error when testing the Tropo API. It uses ZnEasy to post data to their api servers. I know I can raise the semaphore limit by running: Smalltalk vm maxExternalSemaphoresSilently: 3000. then saving. But I wondered if changing ZnClient>>#close to this: close "Close any HTTP network connection that I might have kept open." connection ifNotNil: [ connection close: self isOneShot. connection := nil. state := #closed ]. lastUsed := nil And then adding these two methods: ZdcAbstractSocketStream>>#close: close: andDestroy "Close the stream, flush if necessary" self flush. socket isNil ifTrue: [ ^ self ]. self socketClose: andDestroy. socket := nil ZdcAbstractSocketStream>>#socketClose: andDestroy andDestroy ifTrue: [ socket closeAndDestroy ] ifFalse: [ socket close ] might enable ZnClient to clean up after it issues 'one shot' requests in a safe manner. I can submit a change if so ( an a test! ). Thanks Paul

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Freetype tips with loading fonts
by Hilaire Fernandes June 1, 2012

June 1, 2012

Hello In case, it is useful to someone. It is how I clean up the known fonts in the image and load an external one located along the image. FreeTypeFontProvider unload. FreeTypeFontProvider current updateFromFileEntry: (FileDirectory default entryAt: 'UnDotum.ttf') directory: FileDirectory default locationType: #imageRelative. FreeTypeFontProvider current buildFamilies. FreeTypeFontSelectorDialogWindow new open. "to see the loaded font" StandardFonts balloonFont: (LogicalFont familyName: 'UnDotum' pointSize: 10). StandardFonts defaultFont: (LogicalFont familyName: 'UnDotum' pointSize: 11). Hilaire -- Dr. Geo -- http://www.drgeo.eu

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GLMorphic
by Tim Felgentreff May 30, 2012

May 30, 2012

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi I've been playing with GLMorphic, updating it to work with current CroquetGL. I've been using it as my Display canvas for a couple of days, and I like the idea of allowing Morphs to use OpenGL in their drawOn: methods (makes for much faster transform morphs ;) There's plenty of problems, and performance isn't great, but do people think better OpenGL integration is something that's still worth pursuing? (not necessarily based on GLMorphic) If you want to give it a try, I've updated the ConfigurationOfGLMorphic in the squeaksource.com/GLMorphic repository. Load the #lastVersion (development) and try and enable the GLCanvas with GLDisplayScreen new Works okay here on my i5 with Mesa (software) rendering, and pretty well when run on an nVidia card. I've only tried it on Linux, but it should work wherever CroquetGL works. There's a little example morph in the GLMorphic-Examples category that renders a rotating cube in its drawSubmorphsOn: Best, - -Tim PS: Please do not judge me too harsh for the GL code - never really played with OpenGL before. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPxmBpAAoJEFcGo2TJLgG1gxAIALBOHn31aR8Ou3liuDglNjCp HPwU8C/zQApqHU1CcuTrIfsVd2Y8s2tIV32yitSWuP4xVhQ93sYVZnusnhJMH8am 980m5ssFvuEV0OYg+7SaIWolzW7J5r05MO0eYj/3cQIisUtSca58DlQzavH9Uz3i thKKN2/5OMZqhdVwWvqtddf3k0rWlyOilj0Zz0kk4IYycMoNnZaPX6gKDoZ7Stc+ 0UhOwiTqxvG3lLW0/OvfTfvKthYRcvh0B47tJNkHZ1rhVlvKTvqTdk3jEM2QkgGu IE0wS+Ps0Tbv2Fwjnv3VijSAGGdDCpdloSQ4DrwnwwChooZ5/QJccdRb2XxQSAc= =L0hg -----END PGP SIGNATURE-----

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How does the UI update during this block?
by Sean P. DeNigris May 29, 2012

May 29, 2012

trues := 0. [ (1 to: 200000000) do: [ :e | " (Delay forMilliseconds: 100) wait." e \\ 1000000 == 0 ifTrue: [ trues := trues + 1 ] ]. m delete ] fork. I thought I would have to uncomment the #wait to give the UI a chance to update, but it works as is... -- View this message in context: http://forum.world.st/How-does-the-UI-update-during-this-block-tp4632333.ht… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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[FUN] Pharo Zen Workspace
by Sven Van Caekenberghe May 29, 2012

May 29, 2012

Inspired by a Twitter conversation between Esteban Maringolo & Esteban Lorenzano, I quickly made this little snippet. This is a cool list, it should be featured more prominently: | zenValues | zenValues := #( 'Easy to understand, easy to learn from, easy to change.' 'Objects all the way down.' 'Examples to learn from.' 'Fully dynamic and malleable.' 'Beauty in the code, beauty in the comments.' 'Simplicity is the ultimate elegance.' 'Better a set of small polymorphic classes than a large ugly one.' 'Classes structure our vocabulary.' 'Messages are our vocabulary.' 'Polymorphism is our esperanto.' 'Abstraction and composition are our friends.' 'Tests are important but can be changed.' 'Explicit is better than implicit.' 'Magic only at the right place.' 'One step at a time.' 'There is no unimportant fix.' 'Learning from mistakes.' 'Perfection can kill movement.' 'Quality is an emerging property.' 'Simple processes to support progress.' 'Communication is key.' 'A system with robust abstractions that a single person can understand.' ). Smalltalk tools openWorkspace label: 'Pharo Zen'; toggleStylingActive; contents: (String streamContents: [ :stream | stream << 'Our values and convictions are condensed in this simple list:'; cr; cr. zenValues do: [ :each | stream << each ] separatedBy: [ stream cr ] ]). Sven -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill

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Code Completion Table with dead entries
by Volkert Barr May 29, 2012

May 29, 2012

Hello, i have a question. Why does the code completion offers methods that were removed? I have some cases where deleted methods still listed as "symbol (no implementors)". I there a way to remove them from the code completion table? Pharo-1.4, Nautilus, NOCController Volkert

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Re: [Pharo-users] [Pharo-project] GemSource downtime - May 29 2pm PDT
by Dale Henrichs May 29, 2012

May 29, 2012

REMINDER of GemSource downtime scheduled for 2pm PDT today! ----- Original Message ----- | From: "Dale Henrichs" <dhenrich(a)vmware.com> | To: Pharo-project(a)lists.gforge.inria.fr | Sent: Tuesday, May 22, 2012 10:08:42 AM | Subject: [Pharo-project] GemSource downtime - May 29 2pm PDT | | GemSource (http://seaside.gemstone.com) will be down from 2-3pm PST | on May 29 to add additional storage. | | Please let me know if that will be a problem. | | Dale | |

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[ANN] Fuel Release Version 1.8
by Martin Dias May 28, 2012

May 28, 2012

Hi all, We are proud to announce Fuel 1.8 with a lot of new features and documentation. Of course, we don't stop working but it was time to freeze a stable version. Fuel is an open-source general-purpose object serialization framework developed in Pharo Smalltalk environment. More information on our website [1]. Fuel works out of the box in Pharo from 1.1 up to 2.0 (checked at #20094). Please check our documentation [2] for complete installation and use guides. Below, there are some remarkable changes. - Much more complete user guides. - Improved API for customizing how graph is traced. - FuelMetalevel: serialization of stuff like classes and compiled methods moved to an optional package. - Customize objects to be treated as globals. - Migrations: declare at materialization time class and variables renames. - Weak references properly managed. Thanks to Juan Vuletich and Levente. - Thanks Pavel for helping us improving FuelPackageLoader with wonderful ideas and bug reports. - Serialization speed up on large graphs by using specialized collections. Thanks Levente. - Encoder and Decoder: new reifications that clarify the design. Thanks Colin Putney. - Optimized serialization of "clean" BlockClosures, which don't need the whole stack of contexts. Thanks Juan Vuletich and Eliot Miranda. - Added a clear error hierarchy. - Debug facilities, including graph visualization using Roassal. Thanks Alexandre and Doru. - Many more new tests. Including those from extension packages, we have almost 600 tests. - Repository moved from 'http://www.squeaksource.com/Fuel' to 'http://ss3.gemstone.com/ss/Fuel'. If you are a Fuel user we are not aware of, please let us know! Best regards, Martin and Mariano [1]: http://rmod.lille.inria.fr/web/pier/software/Fuel [2]: http://rmod.lille.inria.fr/web/pier/software/Fuel/Version1.8/Documentation

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Re: [Pharo-users] [Pharo-project] [ANN] Fuel Release Version 1.8
by Mariano Martinez Peck May 28, 2012

May 28, 2012

On Mon, May 28, 2012 at 7:44 PM, Jaroslaw Podgajny < jarek.x.podgajny(a)gmail.com> wrote: > Hi guys, > > It has been long time since I looked into Pharo and licensing environment > (revitalising my interest now...), so I may be asking obvious questions but > what is the licencing model for Fuel? (skimmed the mail and the web site > and only noted "open-sourced") > > Thanks. I have updated the site. Now it says: "An open-source (MIT license) general-purpose *object serialization* framework developed in Pharo Smalltalk environment <http://www.pharo-project.org>." > > Regards, Jaroslaw > > > On Sunday, May 27, 2012, Igor Stasenko wrote: > >> On 27 May 2012 21:23, Mariano Martinez Peck <marianopeck(a)gmail.com> >> wrote: >> > >> > >> > >> >> Fuel works out of the box in Pharo from 1.1 up to 2.0 (checked at >> >> #20094). Please check our documentation [2] for complete installation >> >> and use guides >> > >> > >> > >> > Martin told me something by private email that I think is worth to >> mention. >> > Not sure if you read it carefully, but Fuel is working from Pharo >> version >> > 1.1 up to 2.0!!! >> >> But he is mentioned that already in his announcement. :) >> This is nice, of course! >> >> >> > One of reasons is to help people migrate to new Pharo versions by using >> Fuel >> > as a way of moving data. >> > >> > Cheers >> > >> >> . >> >> >> >> Below, there are some remarkable changes. >> >> >> >> - Much more complete user guides. >> >> - Improved API for customizing how graph is traced. >> >> - FuelMetalevel: serialization of stuff like classes and compiled >> >> methods moved to an optional package. >> >> - Customize objects to be treated as globals. >> >> - Migrations: declare at materialization time class and variables >> renames. >> >> - Weak references properly managed. Thanks to Juan Vuletich and >> Levente. >> >> - Thanks Pavel for helping us improving FuelPackageLoader with >> >> wonderful ideas and bug reports. >> >> - Serialization speed up on large graphs by using specialized >> >> collections. Thanks Levente. >> >> - Encoder and Decoder: new reifications that clarify the design. >> >> Thanks Colin Putney. >> >> - Optimized serialization of "clean" BlockClosures, which don't need >> >> the whole stack of contexts. Thanks Juan Vuletich and Eliot Miranda. >> >> - Added a clear error hierarchy. >> >> - Debug facilities, including graph visualization using Roassal. >> >> Thanks Alexandre and Doru. >> >> - Many more new tests. Including those from extension packages, we >> >> have almost 600 tests. >> >> - Repository moved from 'http://www.squeaksource.com/Fuel' to >> >> 'http://ss3.gemstone.com/ss/Fuel'. >> >> >> >> If you are a Fuel user we are not aware of, please let us know! >> >> >> >> Best regards, >> >> Martin and Mariano >> >> >> >> [1]: http://rmod.lille.inria.fr/web/pier/software/Fuel >> >> [2]: >> >> >> http://rmod.lille.inria.fr/web/pier/software/Fuel/Version1.8/Documentation >> >> >> > >> > >> > >> > >> > -- >> > Mariano >> > http://marianopeck.wordpress.com >> > >> >> >> >> -- >> Best regards, >> Igor Stasenko. >> >> -- Mariano http://marianopeck.wordpress.com

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May 28, 2012

On May 28, 2012, at 7:44 PM, Jaroslaw Podgajny wrote: > Hi guys, > > It has been long time since I looked into Pharo and licensing environment (revitalising my interest now...), so I may be asking obvious questions but what is the licencing model for Fuel? (skimmed the mail and the web site and only noted "open-sourced") good point. It is MIT as the complete pharo environment. Stef > > > > Regards, Jaroslaw > > > On Sunday, May 27, 2012, Igor Stasenko wrote: > On 27 May 2012 21:23, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > > > > > > > >> Fuel works out of the box in Pharo from 1.1 up to 2.0 (checked at > >> #20094). Please check our documentation [2] for complete installation > >> and use guides > > > > > > > > Martin told me something by private email that I think is worth to mention. > > Not sure if you read it carefully, but Fuel is working from Pharo version > > 1.1 up to 2.0!!! > > But he is mentioned that already in his announcement. :) > This is nice, of course! > > > > One of reasons is to help people migrate to new Pharo versions by using Fuel > > as a way of moving data. > > > > Cheers > > > >> . > >> > >> Below, there are some remarkable changes. > >> > >> - Much more complete user guides. > >> - Improved API for customizing how graph is traced. > >> - FuelMetalevel: serialization of stuff like classes and compiled > >> methods moved to an optional package. > >> - Customize objects to be treated as globals. > >> - Migrations: declare at materialization time class and variables renames. > >> - Weak references properly managed. Thanks to Juan Vuletich and Levente. > >> - Thanks Pavel for helping us improving FuelPackageLoader with > >> wonderful ideas and bug reports. > >> - Serialization speed up on large graphs by using specialized > >> collections. Thanks Levente. > >> - Encoder and Decoder: new reifications that clarify the design. > >> Thanks Colin Putney. > >> - Optimized serialization of "clean" BlockClosures, which don't need > >> the whole stack of contexts. Thanks Juan Vuletich and Eliot Miranda. > >> - Added a clear error hierarchy. > >> - Debug facilities, including graph visualization using Roassal. > >> Thanks Alexandre and Doru. > >> - Many more new tests. Including those from extension packages, we > >> have almost 600 tests. > >> - Repository moved from 'http://www.squeaksource.com/Fuel' to > >> 'http://ss3.gemstone.com/ss/Fuel'. > >> > >> If you are a Fuel user we are not aware of, please let us know! > >> > >> Best regards, > >> Martin and Mariano > >> > >> [1]: http://rmod.lille.inria.fr/web/pier/software/Fuel > >> [2]: > >> http://rmod.lille.inria.fr/web/pier/software/Fuel/Version1.8/Documentation > >> > > > > > > > > > > -- > > Mariano > > http://marianopeck.wordpress.com > > > > > > -- > Best regards, > Igor Stasenko. >

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