October 2016 - Pharo-users - lists.pharo.org

DatePrinter
by stepharo Nov. 4, 2016

Nov. 4, 2016

Hi for a little project I need to print date in a nice way (for example french) and I wonder if someone already did that. Right now I'm extracting behavior from Date and putting it in its own class so that I can write testAPI | datePrinter | datePrinter := DatePrinter new. datePrinter inFrench; mmddyyyy. datePrinter for: (Date year: 2016 month: 1 day: 3). self assert: datePrinter print equals: '3 Janvier 2016' I will for fun see how I can add an english and spanish version. Stef

4 7

How does Boolean ifTrue work?
by CodeDmitry Nov. 4, 2016

Nov. 4, 2016

I am looking at ifTrue: alternativeBlock "If the receiver is false (i.e., the condition is false), then the value is the false alternative, which is nil. Otherwise answer the result of evaluating the argument, alternativeBlock. Create an error notification if the receiver is nonBoolean. Execution does not actually reach here because the expression is compiled in-line." self subclassResponsibility In order to perform the block, ifTrue must somehow end up evaluating the block, but this code only sends a subclassResponsibility message to itself and implicitly returns itself. Where does the block actually get evaluated? -- View this message in context: http://forum.world.st/How-does-Boolean-ifTrue-work-tp4920873.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

19 53

Re: [Pharo-users] The Ultimate Smalltalk Tutorial
by phil＠highoctane.be Nov. 3, 2016

Nov. 3, 2016

There was this book (and some others of the same ink) that was provided with my first computer: http://www.colorcomputerarchive.com/coco/Documents/Manuals/Hardware/Getting… I actually had the french version. http://www.colorcomputerarchive.com/coco/Documents/Manuals/Hardware/Color%2… This thing is still sitting near my desk today (I guess it keeps me connected to my curious young self or something like that). I keep on thinking that it would be great to have a Pharo-based version of it. And something like this one for bytecode sets... http://www.colorcomputerarchive.com/coco/Documents/Manuals/Programming/EDTA… Phil On Tue, Oct 25, 2016 at 7:22 AM, Matteo via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: Matteo <matteob8(a)yahoo.it> > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Cc: > Date: Tue, 25 Oct 2016 07:08:21 +0200 > Subject: Re: [Pharo-users] The Ultimate Smalltalk Tutorial > +1 for PBE > It has been my first smalltalk/Pharo tutorial. > I'm still using it, as a quick reference. > > On October 25, 2016 6:25:08 AM GMT+02:00, monty <monty2(a)programmer.net> > wrote: >> >> +1 for PBE. >> >> >> Sent: Monday, October 24, 2016 at 1:56 AM >>> From: "Nicolai Hess" <nicolaihess(a)gmail.com> >>> To: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> >>> Subject: Re: [Pharo-users] The Ultimate Smalltalk Tutorial >>> >>> Am 23.10.2016 3:16 nachm. schrieb "Vitor Medina Cruz" <vitormcruz@gmail.com[mailto:vitormcruz@gmail.com]>: >>> >>>> >>>> I think the MOOC is too much for a tutorial. What I miss today is a good written (no videos! Please!) tutorial that teaches just a little of the language and give a few guidelines on how to do simple stuff with the environment, such as a "Hello World!", creating a class, tests and run stuff. >>>> >>> I thought "pharo by example" provides exactly that. >>> What is missing here, from your perspective? >>> I learned a lot from it and it helped me to get started to learn smalltalk, not only the syntax, but also, doing something the smalltalk way. >>> >>>> >>>> On Sat, Oct 15, 2016 at 12:15 PM, horrido <horrido.hobbies@gmail.com[mailto:horrido.hobbies@gmail.com]> wrote: >>>> >>>>> >>>>> Excellent suggestion! I shall look into it. Thanks. >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> View this message in context: http://forum.world.st/The-Ultimate-Smalltalk-Tutorial-tp4918859p4918930.htm… >>>>> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>>> >>>> >>>> >>>> >> > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > >

7 33

small examples to show the tools
by Christian Haider Nov. 3, 2016

Nov. 3, 2016

Hi all, in two weeks, I am going to give a little talk about Smalltalk: http://metameute.de/nook2016/ . It is 45 min with students who probably never heard of Smalltalk. I want to concentrate on the liveliness of the environment with the tools: Workspace, Inspector, Browser and Debugger. For this, I need a simple but nice example. I will use VisualWorks 8.2 and Mirko, a new Smalltalk lover, will use Pharo 5. We want to have the computers connected, maybe also a Pi, to show the platform independence of the image concept. The first idea was a chat client. A client and a server in one image. Then in two images on one machine, on two machines (also the Pi), maybe in two dialects (VW, Pharo). Possible to transfer code (blocks) across images (that should blow their minds :)). This is cool, but I am not sure if this is not too much and distracting with other technologies. Another is to read a csv file or web service and parse it into objects. With the right kind of cool data it is fun to mold these objects for the tools. This not so sexy, but easy to do from scratch. Unfortunately, the different computers would not play a role. As you see, I am a bit lost and wanted to ask you guys for ideas. Happy hacking, Christian P.S. Here in LÃ¼beck, a town in northern Germany, the attitude towards Smalltalk is generally positive, interested and curious. Maybe it is time for a Smalltalk renaissance?

8 8

using zinc wss instead of ws on windows or linux machine
by itayy Nov. 3, 2016

Nov. 3, 2016

hi all, i was building a an app with pharo and zinc, after i finished the first part i wanted to upgrade the security and so to move from ws to wss. the server is on a windows based machine, and when i change from ws to wss nothing happens. im using pharo 5 as the server. do i need to install something else to navigate the secure traffic to the server? and if yes what? and what do i need to config? if i run it on Linux will it solve the problem or do i need to config something also? if i use nginx gateway for wss then send it to pharo in ws will it work? every help will be great :D -- View this message in context: http://forum.world.st/using-zinc-wss-instead-of-ws-on-windows-or-linux-mach… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 2

UDP Socket primitive failure
by Dimitris Chloupis Nov. 2, 2016

Nov. 2, 2016

Hey guys I try to use Pharo to use Supercollider via OSC. OSC library is maintained by Stef in STHub. So SC informs that it receives the messages sent, but in Pharo I am getting annoying Primitive errors that I paste bellow. Anyone knows if this a bug or something missing here ? Also SC sometimes it informs me that the message was received in a different port than it was sent. Here the code I am using (OSCMessage for:{'/mixer.volume'. 1 . 0.2})sendTo: '127.0.0.1' port: 57120. Any help greatly appreciated. Supercollider is an application which is basically a server written in C++ that does music composition and audio synthesis live , its extremely powerful and the top professional audio tool for audio synthesis and music live coding. http://supercollider.github.io Socket(Object)>>primitiveFailed: Socket>>errorSending:startingAt:count:toHost:port: Socket>>primSocket:sendUDPData:toHost:port:startIndex:count: Socket>>sendUDPData:toHost:port: OSCMessage(OSCPacket)>>sendTo:port: UndefinedObject>>DoIt OpalCompiler>>evaluate RubSmalltalkEditor>>evaluate:andDo: RubSmalltalkEditor>>highlightEvaluateAndDo: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] in [ textMorph textArea handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] ] in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: in Block: [ textMorph textArea editor highlightEvaluateAndDo...etc... RubEditingArea(RubAbstractTextArea)>>handleEdit: [ textMorph textArea handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] ] in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: in Block: [ textMorph textArea... WorldState>>runStepMethodsIn: WorldMorph>>runStepMethods WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: WorldMorph>>doOneCycle [ [ World doOneCycle. Processor yield. false ] whileFalse: [ ] ] in MorphicUIManager>>spawnNewProcess in Block: [ [ World doOneCycle.... [ self value. Processor terminateActive ] in BlockClosure>>newProcess in Block: [ self value....

4 7

[ANN] Pharo By Example 5.0
by Dimitris Chloupis Nov. 1, 2016

Nov. 1, 2016

As promised I released PBE5.0 just now, which basically puts a tag to our github repository to mark the beginning of version 5 and also provided a release in a fork of separate downloads for the book and the repository itself which anything that is required to build the book. If you want just to read , downloading the pdf is enough. You can get the release from here https://github.com/SquareBracketAssociates/UpdatedPharoByExample/releases/t… Unfortunately I was not able to port the Reflection chapter , it needs a ton of work , probably a complete rewrite but since its a late chapter and we already have achieved a 80% updating I think it was the right time now that pharo 7 is starting developing . Still till PBE6.0 we have a long way to go but I think we can get there far easier than we got from PBE1.4 to PBE5.0. The rest of the details are in the link. Salute to fellow Guardians of the Light :)

2 5

Pecha Kucha alike presentation powered by Pharo
by Offray Vladimir Luna CÃ¡rdenas Oct. 31, 2016

Oct. 31, 2016

Hi, I will be doing next Wednesday a Pecha Kucha[1] alike presentation (yep, they told me just recently) and I would like a different kind of presentation: Keeping the constrains of "20 slides, each 20 seconds", but using kind of a comic grid (powered by Material Design Light[2]), instead of a single slide. The idea is to have 20 html files that show progressions and transitions in the comic grid while the talk advances. For that I would like to use Zinc or Teapot in my local machine and make it go automatically over the next file, each 20 seconds and reload the page showed in the web browser. All will be running locally on my machine. [1] https://en.wikipedia.org/wiki/PechaKucha [2] https://getmdl.io/ There is any way to tell Zinc/Teapot to load the next file in a list of them, each 20 seconds? Thanks, Offray

2 1

Re: [Pharo-users] Spec: Setting rows height of a pictures list
by Nicolai Hess Oct. 31, 2016

Oct. 31, 2016

2016-10-31 10:19 GMT+01:00 Matteo via Pharo-users < pharo-users(a)lists.pharo.org>: > > > ---------- Weitergeleitete Nachricht ---------- > From: Matteo <matteob8(a)yahoo.it> > To: "Pharo is welcome (ML)" <pharo-users(a)lists.pharo.org> > Cc: > Date: Mon, 31 Oct 2016 10:18:03 +0100 > Subject: Spec: Setting rows height of a pictures list > Hi, > I've created a list of pictures, i.e. a widget based on ListModel > where > each item is a ImageModel. > > When the widget is displayed I get list window with very thin rows. > > Is there a way to control the ListModel rows height? > Not if the images have different heights (you can, but it looks terrible, because the underlaying list morph does not work for list items with different heights). > > > Thanks, > Matteo > > >

2 1

Spec: Setting rows height of a pictures list
by Matteo Oct. 31, 2016

Oct. 31, 2016

Hi, I've created a list of pictures, i.e. a widget based on ListModel where each item is a ImageModel. When the widget is displayed I get list window with very thin rows. Is there a way to control the ListModel rows height? Thanks, Matteo

1 0