March 2013 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [Pharo-project] [ANN] Phratch: Scratch on Pharo2.0
by jannik.laval March 24, 2013

March 24, 2013

Hi Serge, On Mar 24, 2013, at 9:06 PM, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: > Hi Jannik, > > nice work ! When we start Scat, we have the same idea of using it for > robotics and integrate alternate version of Scratch. Thank you > > But why fork the Scat effort with another Google project ? We could merge them. Just I saw that there is no update on the Scat Google code since 2011, so I create one. Then, about the files to download, there are some changes inside the skin folder to integrate BYOB. Cheers, Jannik > > Regards, > > On Sun, Mar 24, 2013 at 8:56 PM, jannik.laval <jannik.laval(a)gmail.com> wrote: >> Hi Pharoers, >> >> I am porting Scratch and BYOB on Pharo 2.0. The name of the project is Phratch. >> To begin, I took Scat (a port of Scratch on Pharo1.3) and modify it to make it work on Pharo 2.0. For that I integrated FileSystem. >> Then, I took BYOB and port it in the project. >> >> I have some bugs, but the main features are working. >> The main issue is that it is slow. I will investigate that too. >> >> The goal for me is to use it for teaching software engineering and robotics. >> I hope to use Phratch and Pharo 2.0 to create new features. >> >> The project is on SmalltalkHub, and a google code page is available, mainly for reporting issues: https://code.google.com/p/phratch/ >> >> To download Phratch, just run this code: >> >> Gofer it >> url: 'http://smalltalkhub.com/mc/JLaval/Phratch/main'; >> package: 'ConfigurationOfPhratch'; >> load. >> (Smalltalk at: #ConfigurationOfPhratch) loadBleedingEdge. >> >> Cheers, >> Jannik > > > > -- > Serge Stinckwich > UCBN & UMI UMMISCO 209 (IRD/UPMC) > Every DSL ends up being Smalltalk > http://doesnotunderstand.org/ >

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Method Calling Inside Nested Blocks
by Mohammad Al Houssami (Alumni) March 24, 2013

March 24, 2013

Hello everyone I was trying to save my method which has the below piece of code anythingElseBoolean = false ifFalse: [ doctypeString := reader next: 6 doctypeString asLowercase = 'public' ifTrue: [ AfterDOCTYPEPublicKeywordState value: currentCharacter ] I get a complain that the AfterDOCTYPEPublicKeywordState is unknown even though I have a method with this name. If I move the method call outside outside the ifTrue block to the ifFalse block it doesn't complain. Is the problem because of nested blocks ? If that's the case then what would be a good work around ? Thanks Mohammad

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Tiling Window Manager port to Pharo 2.0
by laurent laffont March 23, 2013

March 23, 2013

Hi, Tiling Window Manager is ported to Pharo 2.0. Configuration in MetaRepoForPharo20. Now hosted on SmalltalkHub http://smalltalkhub.com/#!/~LaurentLaffont/TilingWindowManager Add the ability to cycle clockwise / counter clockwise among visible windows using Cmd+R,> and Cmd+R,< Thanks for Pharo 2.0, it feels really better. Laurent Laffont

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Pharo conf Bern April - registration? time schedule?
by Sabine KnÃ¶fel March 22, 2013

March 22, 2013

Hi, how do I register for the conf on 2-4.April in Berne? It there a time schedule? I am looking forward to the conf. Sabine

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ZnUrl: Add multiple segment string
by Sean P. DeNigris March 22, 2013

March 22, 2013

What's the best way to do the following (non-working): aZnUrl / 'path/segment/string'. Ways I thought of: - Ugly: (url asString, 'path/segment/string') asZnUrl. - Non-working: #addPathSegment: - Tedious: url / 'path' / 'segment' / 'string' It seems like a common-enough thing to do, but I couldn't find a way that I liked... Thanks, Sean -- View this message in context: http://forum.world.st/ZnUrl-Add-multiple-segment-string-tp4672728.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] [Pharo-project] [squeak-dev] GSoC13: Google Summer of Code started, your ideas please!
by Mariano Martinez Peck March 21, 2013

March 21, 2013

Hola tocayo! Maybe you can find this interesting: http://www.squeaksource.com/Jabber/ Best, On Thu, Mar 21, 2013 at 2:41 PM, Mariano Vicente <m.vicent(a)gmail.com> wrote: > > âHi, my name is Mariano,i'm a student at University of Quilmes. i have a > experience in other programing languages like Scala, or Objective-c, and i > like to participate in a real Smaltalk project. My background in this > tecnology, is a little small, i never make a real project (I do in other > tecnlogies) and i think the summer of code is a great oportunity for learn > and practice. > > My ideas are: > > > Level: intermediate > Possible mentor: guillermo polito > Possible second mentor: (?) > Description: jabber client / server to communicate smaltalk with this > common protocol. > Technical Details: Create a jabber client api, to provide the capacity to > connect with accouts like google talk, or facebook chat. > Create a jabber api server, with the capacity of accept connection of > diferent jabber clients. > Benefits to the Student: > - Learn > ââ > ââ > â and understand â > architecture > ââ > server/client > - Learn about the protocol jabber. > > â > â > - Use a highly reflective dynamic languageâ > > > Benefits to the Community: > - Server and client for jabber protocol > - Posible implementations for chatbots, chatclients, chatservers > â > > And : > > âLevel: intermediate > Possible mentor: Guillermo Polito > Possible second mentor: (?) > Description: Animation Library based on Athens > Technical Details: Animation Library, to make visual animation objects in > the screen, such as move, bounce , etc. > Benefits to the Student: > - Learn the basics of animations and moving objects. > - Learn about manage of graphics > - Understand the concepts of movement functions > > Benefits to the Community: > - Get a library to make custom animations with the posibility of add new > ones. > > > > â > > > âRegards, > Mariano > > > On Wed, Mar 13, 2013 at 7:14 PM, Guillermo Polito < > guillermopolito(a)gmail.com> wrote: > >> And another one: >> >> Level: intermediate >> Possible mentor: Santiago Bragagnolo >> Possible second mentor: Guillermo Polito >> >> Description: Gamification is becoming more and more popular in a lot of >> applications. What about gamify the pharo development process? You get >> points by adding comments, fixing bugs or answering questions. You can be a >> comment healer, a bug slayer, a Zinc magician. The intend of this project >> is to build an application that integrates with the Pharo development >> process tools (issue tracker, smalltalkhub, stack overflow) and provides a >> gamified experience, so we get more and more motivated to code. >> >> Technical Details: This project implies the creation of an application >> which communicates with different applications APIs and perform some >> analysis on them such as running source code Lint rules. Additionally, this >> application should have a web frontend. >> >> >> Benefits to the Student >> - Use a highly reflective dynamic language >> - Learn to develop a complex application architecture with several >> communicating components >> - Learn about ramification concepts >> - Learn about an open source project development and integration >> process, such as Pharo >> - Learn web application development techniques >> >> Benefits to the Community >> - have a platform to organize activities and events around the Pharo >> development >> - be more motivated to participate into the development for rewards >> such as experience, badges and abilities >> >> >> On Wed, Mar 13, 2013 at 4:40 PM, Guillermo Polito < >> guillermopolito(a)gmail.com> wrote: >> >>> Hi Janko! >>> >>> We have this: >>> >>> Level: intermediate >>> Possible mentor: Guillermo Polito >>> >>> Possible second mentor: Esteban Lorenzano >>> >>> Description: DBXTalk database driver nowadays uses a native library >>> called OpenDBX. This library stands as an adaptor between different >>> database drivers, implemented in C. This native library supposes many >>> problems: >>> - it should be normally compiled for each different platform (Windows, >>> *nix, macosx) and database vendor >>> - each of its bugs should be fixed in a C source code base >>> - OpenDBX do not expose the particular behavior of each database >>> vendor, but their common denominator >>> - difficulty for distribution, and problems to locate libraries. >>> This project proposes to use NativeBoost bindings to remove the >>> necessity of the native openDBX library, simplifying the deployment of >>> applications using relational databases, and moving all the code base to >>> Smalltalk. >>> >>> Technical Details: This project supposes the replacement of openDBX >>> old FFI bindings by direct nativeBoost bindings to the database drivers. >>> The new drivers should be completely written in Smalltalk, and take care of >>> platform and library resolution in the image side. These drivers should be >>> polymorphic while also enabling the access to specific API provided by >>> database vendors. >>> >>> Benefits to the Student >>> - Use a highly reflective dynamic language >>> - Learn the basics of foreign function interface (and its exponent >>> NativeBoost) >>> - Learn how to manage external resources and platform specific native >>> code >>> - Put into usage its object design skills to transform a structured >>> designed library into an object oriented one >>> >>> Benefits to the Community >>> - A more malleable and full smalltalk implementation of relational >>> database drivers >>> - Easier deploy for applications using relational databases >>> - Database divers exposing their particular apis, providing access to >>> features not available before >>> >>> Guille >>> >>> On Sat, Mar 9, 2013 at 2:16 PM, Janko MivÅ¡ek <janko.mivsek(a)eranova.si>wrote: >>> >>>> Hi Stef, >>>> >>>> Post on the mailing list for each project idea by following this >>>> template: >>>> >>>> Level: (beginner, intermediate, advanced) >>>> >>>> Possible mentor: >>>> >>>> Possible second mentor: >>>> >>>> Description >>>> >>>> Technical Details >>>> >>>> Benefits to the Student >>>> >>>> Benefits to the Community >>>> >>>> Best regards >>>> Janko >>>> >>>> Dne 09. 03. 2013 13:46, piÅ¡e stephane ducasse: >>>> > Hi janko >>>> > >>>> > How do you want to proceed for the topics? >>>> > I have a list of topics now where do we write them. >>>> > >>>> > - tool support rewrite rules >>>> > - new generation debugger >>>> > - new change model and session manager (with martin dias) >>>> > - improving roassal (with alexandre bergel et vanessa pena) >>>> > - improving eyesee (with alexandre bergel et vanessa pena) >>>> > - support touch event >>>> > - UIPainter (with esteban lorenzano) >>>> > - New widgets >>>> > >>>> > >>>> > Stef >>>> > >>>> > >>>> >> Dear Smalltalkers, >>>> >> >>>> >> Time for your cool project ideas on this year Smalltalk GSoC! >>>> >> >>>> >> For now just express any idea you have here on the mailing list. >>>> Later >>>> >> we will together develop it to be in complete format together with >>>> two >>>> >> mentors needed. Deadline is end of Mart, so we have three weeks of >>>> time. >>>> >> To see how fully developed ideas look like please look at 2012 ones >>>> at: >>>> >> http://gsoc2012.esug.org/ideas. >>>> >> >>>> >> Note also that students yourselves can propose a GSoC project. So if >>>> you >>>> >> like to be a student on this year GSoC and have a nice idea, don't be >>>> >> shy and propose it here! The community will listen you and guide to >>>> the >>>> >> really nicely proposed project. Last year 6 student proposed projects >>>> >> were accepted and finished successfully! >>>> >> >>>> >> For the community, start looking around for students. Think about >>>> how to >>>> >> approach the universities near by you, do you know who to contact >>>> >> there, etc. >>>> >> >>>> >> We are namely preparing an application to this year Smalltalk Google >>>> >> Summer of Code under ESUG umbrella, as last year. If accepted, Google >>>> >> will pay few stipendiums to students on our Smalltalk projects. >>>> >> >>>> >> More on our special Smalltalk GSoC 2013 website: >>>> >> >>>> >> http://gsoc2013.esug.org >>>> >> >>>> >> I'm specially inviting mentors of all past GSoCs to rejoin the >>>> mentors >>>> >> mailing list, where we discuss all details about this year GSoC: >>>> >> >>>> >> http://groups.google.com/group/smalltalk-gsoc-mentors >>>> >> >>>> >> While students interested on GSoC please join a special Smalltalk >>>> GSoC >>>> >> mailing list for you: >>>> >> >>>> >> http://groups.google.com/group/smalltalk-gsoc-students >>>> >> >>>> >> Best regards >>>> >> Janko >>>> >> >>>> >> >>>> >> -- >>>> >> Janko MivÅ¡ek >>>> >> Aida/Web >>>> >> Smalltalk Web Application Server >>>> >> http://www.aidaweb.si >>>> >> >>>> > >>>> > >>>> > >>>> >>>> -- >>>> Janko MivÅ¡ek >>>> Aida/Web >>>> Smalltalk Web Application Server >>>> http://www.aidaweb.si >>>> >>>> >>> >> > -- Mariano http://marianopeck.wordpress.com

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How can my Morph reflect changes in the object it displays?
by MartinW March 21, 2013

March 21, 2013

I asked the same question on Stackoverflow (http://stackoverflow.com/questions/15534305/how-to-bind-a-labelmorph-textmo…) but as i do not know how much the audiences overlap i hope you do not mind if i repeat it here: How to bind a LabelMorph/TextMorph to a variable so that the Morph reflects changes of the variable? - I have an object with a variable containing a String. - I have a window containing a LabelMorph/TextMorph (or some other Morph that displays Text?). How do i bind the LabelMorph/TextMorph to the variable, so that the label updates when the String in the variable changes? - classic Smalltalk-80 dependent/change/update mechanism? - Pharo Announcement framework? - something different?? How would i do this? Which Morph should i use? Martin. -- View this message in context: http://forum.world.st/How-can-my-Morph-reflect-changes-in-the-object-it-dis… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] How can my Morph reflect changes in the object it displays?
by Stephan Eggermont March 21, 2013

March 21, 2013

>I have not looked at Glamour yet - and i am a bit reluctant to add an extra >layer, but i will give it a try. Why? If it fits your problem space, it avoids a lot of boilerplate. http://www.humane-assessment.com/blog/building-a-simple-code-browser/ http://www.themoosebook.org/book/internals/glamour http://www.humane-assessment.com/blog/building-browsers-with-glamour-smallt… Stephan

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Re: [Pharo-users] How can my Morph reflect changes in the object it displays?
by Stephan Eggermont March 21, 2013

March 21, 2013

Martin Walk asked: >How to bind a LabelMorph/TextMorph to a variable so that the Morph reflects >changes of the variable? That is a very low-level question. Do you just want to know, or do you want to use it? When building UI's in Pharo, the first question should probably be: can I get away with building it in Glamour. That is a high-level UI toolkit specialized in creating browsers. If you can, it is much less work. Stephan Eggermont

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new (learning) project - tiangle with draggable points on a screen
by sminni March 21, 2013

March 21, 2013

Hi I have a small project (a real requirement) and I want a little guidance to do it (myself) - pl. assume I am new to pharo though I can navigate the IDE & have a background in O-O development. 1. Draw a triangle with draggable handles on points 2. The sides length and angles will be displayed (in editable fields) 3. We can lock any of the sides / angles 4. If the side / angle is edited then an action can be initiated to recomplete the triangle by redrawing the side clicked next Thanks Sanjay ----- --- Regards, Sanjay -- View this message in context: http://forum.world.st/new-learning-project-tiangle-with-draggable-points-on… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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