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

Tiling Window Manager port to Pharo 2.0

by laurent laffont

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

March 21, 2013

Re: [Pharo-users] [Pharo-project] [squeak-dev] GSoC13: Google Summer of Code started, your ideas please!

by Mariano Martinez Peck

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

March 21, 2013

Pharo conf Bern April - registration? time schedule?

by Sabine KnÃ¶fel

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

March 21, 2013

Re: [Pharo-users] NeoJSON Mappings

by Esteban A. Maringolo

Hi Sven, 2013/3/18 Sven Van Caekenberghe-2 [via Smalltalk] > There is however a problem: the basic JSON spec is deliberately limited > and vague about certain aspects, and even non existing for other aspects > such as typing, references or cycles. There exist numerous ways to add those > to JSON, some very complicated ones, often coming from statically typed > languages. Many of those kill the human readability/writability of JSON. The > problem of how to encode a type or class in JSON across languages is > actually unsolved. That is why I decided not to implement any support for > that. > With NeoJSON mappings your are supposed to know upfront what types your > JSON represents/contains. This works fine in many cases but certainly not > all. In this case I know it. And I Just need the writter and not the reader, altough it might be useful in the future. > Circular references will always be a problem. > Structure sharing is extra complicated, it requires both reader and writer > support with an objet table. Yes, this happens with any serializer without global state or object table :) > STON, which is very similar but incompatible with JSON, has support for > all these aspects, right out of the box, no mapping required. If you do not > have to interact with foreign systems, that is an option. In this case JSON is mandatory. The consumer of the data is a mobile device. The other alternative is, god forbid, XML, which isn't friendly in terms of bandwidth. > Support for one of the many semantics built on top of JSON will have to be > built by hand. Hopefully the mapping layer can help there. But like you > said: you'll have to play with custom mappings. The mapping system is pretty > simple to understand. Yes, but sometimes I feel the need to be able to map instVars/accesors to encoder/decoders without having to use an schema (defined by a symbol). I haven't found the case where it is not an extra step. > PS: I also have to confess that although I am using NeoJSON in various > important projects myself, we usually stick with Dictionaries/Collections > without doing any mapping. Only in very specific cases do we actually > convert to specific Smalltalk objects. Same happens here so far, I produce JSON, and get JSON back, but then I manually pick the JSON values (deserialized as Dictionaries/Arrays) and assign them to my objects. I don't know what the guys from SmalltalkHub are using to serialize/deserialize JSON. Thanks for your support. I'll keep with using custom mappings for almost everything that references an object which isn't "simple" (string, dates, numbers, etc.). Best regards, -- Esteban. -- View this message in context: http://forum.world.st/NeoJSON-Mappings-tp4677077p4677681.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 21, 2013

Re: [Pharo-users] How can my Morph reflect changes in the object it displays?

by phil＠highoctane.be

Currently doing some stuff with step and stepTime. Are these things supported in some way in Spec? This is an open question :-) Phil 2013/3/21 Benjamin <benjamin.vanryseghem.pharo(a)gmail.com>: > Yes you can :) > (thanks to value holders ^^) > > Ben > > On Mar 21, 2013, at 1:58 PM, MartinW <wm(a)fastmail.fm> wrote: > > Benjamin Van Ryseghem-2 wrote > > The problem is mutable objects, what can you do then â¦ > For Spec I introduced value holders :) > > > I was already wondering what ValueHolders were abould :) > I am looking forward to the Spec Tutorial Video from the Pharo Conference. > > Can i already do this with Spec: > Display a Slider and a Textfield for a numerical value and when i change the > value via the slider the Textfiled will update and vice versa? > > > > > -- > 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. > >

March 21, 2013

Re: [Pharo-users] How can my Morph reflect changes in the object it displays?

by Benjamin

Yes you can :) (thanks to value holders ^^) Ben On Mar 21, 2013, at 1:58 PM, MartinW <wm(a)fastmail.fm> wrote: > Benjamin Van Ryseghem-2 wrote >> The problem is mutable objects, what can you do then â¦ >> For Spec I introduced value holders :) > > I was already wondering what ValueHolders were abould :) > I am looking forward to the Spec Tutorial Video from the Pharo Conference. > > Can i already do this with Spec: > Display a Slider and a Textfield for a numerical value and when i change the > value via the slider the Textfiled will update and vice versa? > > > > > -- > 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. >

March 21, 2013

Re: [Pharo-users] How can my Morph reflect changes in the object it displays?

by Stephan Eggermont

>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

March 21, 2013

Re: [Pharo-users] ZnUrl: Add multiple segment string

by Sven Van Caekenberghe

Hi Sean, On 21 Mar 2013, at 15:34, "Sean P. DeNigris" <sean(a)clipperadams.com> wrote: > Sven Van Caekenberghe-2 wrote >> So here is what I did in the latest version of Zinc-Resource-Meta >> (ConfigurationOfZincHTTPComponents project bleedingEdge load): > > Sounds great, but #addedToZnUrl: does not exist after loading bleeding > edge... maybe the config at http://www.squeaksource.com/MetacelloRepository > needs to be updated? My 'canonical' repository is http://mc.stfx.eu/ZincHTTPComponents, but that should not make any difference (but I must admit it is a pain to keep all those repositories in sync). You need Name: Zinc-Resource-Meta-Core-SvenVanCaekenberghe.12 Author: SvenVanCaekenberghe Time: 17 March 2013, 4:21:09.316 pm UUID: d571a909-0d2b-4e26-b219-89d1bb5f2640 and Name: Zinc-Resource-Meta-Tests-SvenVanCaekenberghe.8 Author: SvenVanCaekenberghe Time: 17 March 2013, 4:24:02.237 pm UUID: aee46c39-5c83-46e5-a7bc-c661f0bc5782 Sven -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill

March 21, 2013

Re: [Pharo-users] ZnUrl: Add multiple segment string

by Sean P. DeNigris

Sven Van Caekenberghe-2 wrote > Yes, I think AbstractFileReference>>#/ could probably be extended in a > similar way, but I am no FileSystem expert... ref1 := '/' asFileReference / 'Users' / 'me'. gives a FileReference with Path / 'Users' / 'me' ref2 := '/' asFileReference / 'Users/me'. gives a FileReference with Path / 'Users/me' I use the second version all the time, and even though the internal path representation is different, it still "works" e.g. ref1 exists = ref2 exists ----- Cheers, Sean -- View this message in context: http://forum.world.st/ZnUrl-Add-multiple-segment-string-tp4672728p4677657.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 21, 2013

Re: [Pharo-users] ZnUrl: Add multiple segment string

by Sean P. DeNigris

Sven Van Caekenberghe-2 wrote > So here is what I did in the latest version of Zinc-Resource-Meta > (ConfigurationOfZincHTTPComponents project bleedingEdge load): Sounds great, but #addedToZnUrl: does not exist after loading bleeding edge... maybe the config at http://www.squeaksource.com/MetacelloRepository needs to be updated? ----- Cheers, Sean -- View this message in context: http://forum.world.st/ZnUrl-Add-multiple-segment-string-tp4672728p4677656.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 21, 2013