November 2016 - Pharo-users

Re: [Pharo-users] Pharo desktop UI

by Ben Coman

On Thu, Nov 3, 2016 at 10:05 PM, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > " > 3. How to drag-n-drop from the host operation system into pharo application > and vice versa? I need to drag-n-drop a list of files from\to file browser." I don't know the answer to what you ask, but the experiment code I attached to [1] may also be of interest. Its a couple of years old but I don't think much has changed in that area for a while. If you drop the attachment into your Monticello package-cache you can load it from there. [1] http://forum.world.st/example-custom-mouse-events-td4773821.html cheers -ben > Drag and Drop can be a tricky one because its a Morphic and will require > some experience with Morphic. Morph which is basically the base class of > all gui element 3 relevant methods. > > a) dropFiles: > b) handleDropFiles: > c) wantsDropFiles:

Nov. 3, 2016

Re: [Pharo-users] Pharo desktop UI

by Ben Coman

On Thu, Nov 3, 2016 at 5:43 AM, vikenti <vikenti.potapov(a)gmail.com> wrote: > 2. The next task is to do some work on image load (i mean pharo image). I > need some handler which fires immediately after image is loaded. How to > include my handler in this chain???? My app saves data into the image so i > need to manage this and auto-load _my_ application after startup. Take a look at the two class methods #startUp: and #initialize at [1] under "Inter-session persistency" ... [1] http://blog.openinworld.com/2016/09/pharo-libclang-ffi-part-2-simple-callou… cheers -ben

Nov. 3, 2016

Re: [Pharo-users] The Ultimate Smalltalk Tutorial

by Offray Vladimir Luna CÃ¡rdenas

Thanks Vitor and Dimitris. Hopefully Grafoscopio will provide another way for making tutorials and interactive documentation, even companion code notebooks for the books in Pharo. Please take into account that Grafoscopio is my first Smalltalk app and the one I create to learn Smalltalk (before I only used Etoys, Scratch and Bots Inc educative software that are Smalltalk based), so any improvement or code comments, or commits, are pretty welcomed. Cheers, Offray On 03/11/16 09:46, Dimitris Chloupis wrote: > > Yeah I think I will delay that idea and take a deeper look at > grafoscopio. I think we can have a nice replacement to help tool. > > On Thu, Nov 3, 2016 at 3:44 PM Vitor Medina Cruz <vitormcruz(a)gmail.com > <mailto:vitormcruz@gmail.com>> wrote: > > Sorry, many things to do and I wasn't able to look at the Pharo list. > * > * > * > Dimitris:* > * > * > I really like you idea, and I think it will certainly be better > than the videos. I didn't know of Grafoscopio, and I found it > interesting too. Do you need someone to test? In latter stages I > could try convince some people to try the tutorial too and provide > feedback. > > *Offray:* > > Thanks for the links, I added them to my read list :) > > > On Fri, Oct 28, 2016 at 6:40 AM, stepharo <stepharo(a)free.fr > <mailto:stepharo@free.fr>> wrote: > > + 1 :) > > share codevelop and expand :) > > > Le 27/10/16 Ã 17:43, Offray Vladimir Luna CÃ¡rdenas a Ã©crit : >> >> Hi Dimitris, >> >> Goals 1 to 6 overlap with the ones Grafoscopio. Could you >> test it please to see if we can work together in some way or >> Grafoscopio could work as a foundation for your work? In that >> way we could break the lonely developer reality for this one. >> >> Cheers, >> >> Offray >> >> >> On 27/10/16 09:00, Dimitris Chloupis wrote: >>> I decided to make a new version for ProfStef released under >>> then name "Pharo Live Tutorial". >>> >>> My goals are to: >>> 1) add to it a history panel, so the user can navigate to >>> the part he wants. >>> 2) group parts into chapters to make progress more clear >>> 3) break some parts to smaller parts to ensure smooth >>> learning curve >>> 4) add it to the help section of the world menu , so it is >>> far more visible to the user >>> 5) link parts to relevant chapter and section of PBE5 (or >>> any other relevant book), so the user can easily access more >>> detailed info in case he wants to. >>> 6) Design the tool so it can accommodate multiple tutorials, >>> each having its own chapters and parts >>> 7) Design a GUI to navigate to tutorials >>> 8) Integrate it with GTSpotter so the user can easily find >>> the information he or she wants >>> 9) Integrate small challenge games to help the user test >>> what he learned and have fun at the same time, with ability >>> to be awarded with a score in terms of "levels" and of >>> course badges for achievements ;) >>> 10) Provide an integrated blog (nothing fancy, just text) , >>> for latest news about pharo , this blog will be basically >>> copying some of my blog posts , to show to users that we are >>> alive and kicking and not just an almost dead project and of >>> course advertise the hard work of many of my fellow >>> guardians of the light. >>> >>> PS: obviously references to Stef will remain and he will be >>> credited as author of the tutorial >>> >>> Can't promise when it will be ready and can't promise first >>> version will include all the above but this is the direction >>> I want to go with this. This live interactive tutorial will >>> replace my video tutorials since they are too hard to keep >>> updated. >>> >>> >>> On Thu, Oct 27, 2016 at 3:04 PM Vitor Medina Cruz >>> <vitormcruz(a)gmail.com <mailto:vitormcruz@gmail.com>> wrote: >>> >>> *stepharo:* >>> >>> Why not pushing/improving >>> >>> either >>> UPBE >>> ProfStef >>> With the Mooc Counter example: In TWO >>> MINUTES people get something DONE a simple counter. >>> What else can it be. >>> >>> >>> I run the following experience during my lecture. I >>> give 1 hour presentation about pharo / vision / >>> sneakpeek and ask them to watch the counter >>> video and redo it and it works! >>> >>> >>> Indeed, you can. My opinion was in the lines of >>> improving Profstef :) >>> >>> Mooc may be good in a class with a teacher for the >>> student to take doubts, but I find a little confusing >>> for someone that finds it by its own in pharo.org >>> <http://pharo.org>. >>> >>> I have some friends on the field, some are overseas (I >>> am in Brazil) and when the opportunity comes I talk >>> about Smalltalk and Pharo and how good it is, then: >>> >>> 1- Some get interested and asks for reference, I usually >>> point to the Proftef, the site and the PBE; >>> 2- Some are interested and we are close so I can I >>> explain something myself and show the environment, maybe >>> pairing; >>> 3- Sometimes someone got interested and went to the >>> pharo.org <http://pharo.org> by itself and I know of >>> that only afterwards. >>> >>> In every situation people got confused :( >>> >>> The best time was 2, because I could explain better what >>> was going on, but usually people try by itself, and that >>> don't went well. For example, some report to me that had >>> made the exercise from PBE and got really confused in >>> the end: what was that I was doing? Where are my classes >>> again? Workspace? Where is the code again? What happened? >>> >>> I think it is hard for someone that already internalize >>> the concept of image and self contained environment to >>> understand why this confusion is happening, but when you >>> come to think about it that is not so strange because >>> people are used to files and all those crap static >>> stuff, so it is kind of a huge paradigm shift learning >>> Pharo: it *is* confusing for them. >>> >>> But it seems to me that you are focusing more on fresh >>> people, been teach on classrooms and such, right now. >>> That may be good, I am not sure if people already in the >>> industry can be cooped in enough size to be able to >>> improve Pharo community and use. >>> >>> On Thu, Oct 27, 2016 at 9:21 AM, stepharo >>> <stepharo(a)free.fr <mailto:stepharo@free.fr>> wrote: >>> >>> funnily dale I read it like you wish :) >>> >>> >>> >>> Le 26/10/16 Ã 21:53, Dale Henrichs a Ã©crit : >>>> >>>> >>>> >>>> On 10/26/16 12:13 PM, Offray Vladimir Luna CÃ¡rdenas >>>> wrote: >>>>> >>>>> >>>>> Hi, >>>>> >>>>> On the issue of contributing to Free, Libre, Open >>>>> Source Software (FLOSS) projects, I have been >>>>> reading recently Nadia Eghbal and her analysis >>>>> that confirm that most FLOSS projects are done by >>>>> individuals and small teams, which is contrary to >>>>> the bazaar narrative. This comic shows the point: >>>>> >>>>> and you can find more details here: >>>>> https://medium.com/@nayafia/what-success-really-looks-like-in-open-source-2… >>>>> >>>> After skimming the actual article and finding that >>>> the points made in the article are valid I would >>>> have wished that the right panel in the cartoon had >>>> said "one more pull request before going to bed" >>>> since that is closer to what the article is about >>>> ... an active, community that contributes is also >>>> an important component and something that >>>> Pharo/Smalltalk community does indeed have. >>>> >>>> Dale >>> >>> >> > >

Nov. 3, 2016

doing a backend change in pharo.org. It will be down for 1h.

by Esteban Lorenzano

subj

Nov. 3, 2016

Re: [Pharo-users] The Ultimate Smalltalk Tutorial

by Dimitris Chloupis

Yeah I think I will delay that idea and take a deeper look at grafoscopio. I think we can have a nice replacement to help tool. On Thu, Nov 3, 2016 at 3:44 PM Vitor Medina Cruz <vitormcruz(a)gmail.com> wrote: > Sorry, many things to do and I wasn't able to look at the Pharo list. > > *Dimitris:* > > I really like you idea, and I think it will certainly be better than the > videos. I didn't know of Grafoscopio, and I found it interesting too. Do > you need someone to test? In latter stages I could try convince some people > to try the tutorial too and provide feedback. > > *Offray:* > > Thanks for the links, I added them to my read list :) > > > On Fri, Oct 28, 2016 at 6:40 AM, stepharo <stepharo(a)free.fr> wrote: > > + 1 :) > > share codevelop and expand :) > > Le 27/10/16 Ã 17:43, Offray Vladimir Luna CÃ¡rdenas a Ã©crit : > > Hi Dimitris, > > Goals 1 to 6 overlap with the ones Grafoscopio. Could you test it please > to see if we can work together in some way or Grafoscopio could work as a > foundation for your work? In that way we could break the lonely developer > reality for this one. > > Cheers, > > Offray > > On 27/10/16 09:00, Dimitris Chloupis wrote: > > I decided to make a new version for ProfStef released under then name > "Pharo Live Tutorial". > > My goals are to: > 1) add to it a history panel, so the user can navigate to the part he > wants. > 2) group parts into chapters to make progress more clear > 3) break some parts to smaller parts to ensure smooth learning curve > 4) add it to the help section of the world menu , so it is far more > visible to the user > 5) link parts to relevant chapter and section of PBE5 (or any other > relevant book), so the user can easily access more detailed info in case he > wants to. > 6) Design the tool so it can accommodate multiple tutorials, each having > its own chapters and parts > 7) Design a GUI to navigate to tutorials > 8) Integrate it with GTSpotter so the user can easily find the information > he or she wants > 9) Integrate small challenge games to help the user test what he learned > and have fun at the same time, with ability to be awarded with a score in > terms of "levels" and of course badges for achievements ;) > 10) Provide an integrated blog (nothing fancy, just text) , for latest > news about pharo , this blog will be basically copying some of my blog > posts , to show to users that we are alive and kicking and not just an > almost dead project and of course advertise the hard work of many of my > fellow guardians of the light. > > PS: obviously references to Stef will remain and he will be credited as > author of the tutorial > > Can't promise when it will be ready and can't promise first version will > include all the above but this is the direction I want to go with this. > This live interactive tutorial will replace my video tutorials since they > are too hard to keep updated. > > > On Thu, Oct 27, 2016 at 3:04 PM Vitor Medina Cruz <vitormcruz(a)gmail.com> > wrote: > > *stepharo:* > > Why not pushing/improving > > either > UPBE > ProfStef > With the Mooc Counter example: In TWO MINUTES people get > something DONE a simple counter. > What else can it be. > > > I run the following experience during my lecture. I give 1 hour > presentation about pharo / vision / sneakpeek and ask them to watch the > counter > video and redo it and it works! > > > Indeed, you can. My opinion was in the lines of improving Profstef :) > > Mooc may be good in a class with a teacher for the student to take doubts, > but I find a little confusing for someone that finds it by its own in > pharo.org. > > I have some friends on the field, some are overseas (I am in Brazil) and > when the opportunity comes I talk about Smalltalk and Pharo and how good it > is, then: > > 1- Some get interested and asks for reference, I usually point to the > Proftef, the site and the PBE; > 2- Some are interested and we are close so I can I explain something > myself and show the environment, maybe pairing; > 3- Sometimes someone got interested and went to the pharo.org by itself > and I know of that only afterwards. > > In every situation people got confused :( > > The best time was 2, because I could explain better what was going on, but > usually people try by itself, and that don't went well. For example, some > report to me that had made the exercise from PBE and got really confused in > the end: what was that I was doing? Where are my classes again? Workspace? > Where is the code again? What happened? > > I think it is hard for someone that already internalize the concept of > image and self contained environment to understand why this confusion is > happening, but when you come to think about it that is not so strange > because people are used to files and all those crap static stuff, so it is > kind of a huge paradigm shift learning Pharo: it *is* confusing for them. > > But it seems to me that you are focusing more on fresh people, been teach > on classrooms and such, right now. That may be good, I am not sure if > people already in the industry can be cooped in enough size to be able to > improve Pharo community and use. > > On Thu, Oct 27, 2016 at 9:21 AM, stepharo <stepharo(a)free.fr> wrote: > > funnily dale I read it like you wish :) > > > > Le 26/10/16 Ã 21:53, Dale Henrichs a Ã©crit : > > > > On 10/26/16 12:13 PM, Offray Vladimir Luna CÃ¡rdenas wrote: > > > Hi, > > On the issue of contributing to Free, Libre, Open Source Software (FLOSS) > projects, I have been reading recently Nadia Eghbal and her analysis that > confirm that most FLOSS projects are done by individuals and small teams, > which is contrary to the bazaar narrative. This comic shows the point: > > and you can find more details here: > https://medium.com/@nayafia/what-success-really-looks-like-in-open-source-2… > > After skimming the actual article and finding that the points made in the > article are valid I would have wished that the right panel in the cartoon > had said "one more pull request before going to bed" since that is closer > to what the article is about ... an active, community that contributes is > also an important component and something that Pharo/Smalltalk community > does indeed have. > > Dale > > > > > > >

Nov. 3, 2016

Re: [Pharo-users] How does Boolean ifTrue work?

by Dimitris Chloupis

OK but the original question was "Why don't Smalltalk or Smalltalklike > languages have checked interfaces?â and my mail was an answer to that. > > You are correct, I did not read carefully and made the mistake to assume that it was about not being possible. " I think there was Lisp for Squeak (and also Prolog). And port to Pharo should not be difficult. " Ah yes thanks for reminding , my intention was to do it from scratch mainly as an opportunity to understand the basics of parsers, AST and compilers etc but still could really help to see those examples. These are the links I am using for assistance https://gist.github.com/kilon/486629e5858e23c87dd8ede236dc8bfa

Nov. 3, 2016

Re: [Pharo-users] [ALERT] Pharo by Example version 5 is about to be released

by stepharo

Le 3/11/16 Ã 15:11, Nicolai Hess a Ã©crit : > > > 2016-11-03 15:02 GMT+01:00 stepharo <stepharo(a)free.fr > <mailto:stepharo@free.fr>>: > > Hi nicolai > > I started to work on the reflection chapter. > > > > The reflection chapter (and maybe some other too) could new some new > screenshots. Yes I started. I know that Sharing code has the problems. > Now hacking PharoDoc :) > > Stef > > > Le 3/11/16 Ã 14:29, Nicolai Hess a Ã©crit : >> >> >> 2016-10-27 13:32 GMT+02:00 Dimitris Chloupis >> <kilon.alios(a)gmail.com <mailto:kilon.alios@gmail.com>>: >> >> In case someone missed it I will be doing a release for >> version 5 (pharo version = pbe version) this weekend , since >> we had Pharo 7 initiated few days ago. >> >> Essentially that means that the repo will be tagged for >> version 5, which means a git commit is associated as a last >> commit for that version and there will be a frozen release - >> download for Pharo by Example version 5. After that we move >> to Pharo By Example version 6 or PBE6 for short >> >> The repo wont change otherwise and the process of submitting >> commits, pull requests and issues remains the same. >> >> If you have found a flaw of any sort in the documentation , >> please open an issue in the github issue tracker that can be >> found here >> >> https://github.com/SquareBracketAssociates/UpdatedPharoByExample/issues >> <https://github.com/SquareBracketAssociates/UpdatedPharoByExample/issues> >> >> I will try to fix any problem reported but if I cannot , the >> fix will have to move to version 6 >> >> As always thanks to all people contributing into the >> impossible .... making Pharo more amazing >> >> If you want to contribute feel free to do so with a pull >> request. >> >> Does not matter if you are beginner because even minor >> corrections like correcting mistakes in the grammar or >> content of the text, updated pictures, or just a few lines of >> extra info are more than enough and more than welcomed. Many >> Pharo beginners have already done so . >> >> -Salute to fellow Guardians of The Light >> >> >> I found some problems, but I don't have time to report/fix them >> now, I 'll try to report them >> later (today or tomorrow). >> > >

Nov. 3, 2016

Re: [Pharo-users] [ALERT] Pharo by Example version 5 is about to be released

by Nicolai Hess

2016-11-03 15:02 GMT+01:00 stepharo <stepharo(a)free.fr>: > Hi nicolai > > I started to work on the reflection chapter. > The reflection chapter (and maybe some other too) could new some new screenshots. > Now hacking PharoDoc :) > > Stef > > Le 3/11/16 Ã 14:29, Nicolai Hess a Ã©crit : > > > > 2016-10-27 13:32 GMT+02:00 Dimitris Chloupis <kilon.alios(a)gmail.com>: > >> In case someone missed it I will be doing a release for version 5 (pharo >> version = pbe version) this weekend , since we had Pharo 7 initiated few >> days ago. >> >> Essentially that means that the repo will be tagged for version 5, which >> means a git commit is associated as a last commit for that version and >> there will be a frozen release - download for Pharo by Example version 5. >> After that we move to Pharo By Example version 6 or PBE6 for short >> >> The repo wont change otherwise and the process of submitting commits, >> pull requests and issues remains the same. >> >> If you have found a flaw of any sort in the documentation , please open >> an issue in the github issue tracker that can be found here >> >> https://github.com/SquareBracketAssociates/UpdatedPharoByExample/issues >> >> I will try to fix any problem reported but if I cannot , the fix will >> have to move to version 6 >> >> As always thanks to all people contributing into the impossible .... >> making Pharo more amazing >> >> If you want to contribute feel free to do so with a pull request. >> >> Does not matter if you are beginner because even minor corrections like >> correcting mistakes in the grammar or content of the text, updated >> pictures, or just a few lines of extra info are more than enough and more >> than welcomed. Many Pharo beginners have already done so . >> >> -Salute to fellow Guardians of The Light >> > > I found some problems, but I don't have time to report/fix them now, I 'll > try to report them > later (today or tomorrow). > > > >

Nov. 3, 2016

Re: [Pharo-users] Pharo desktop UI

by Dimitris Chloupis

Hello mr newbie, welcome to our island :) "1. I need to rewrite the whole GUI from scratch. What UI framework to choose and where to get documentation?" Johan already recommended Spec , I think its the best fit for you. If you want more customisation you can always use Morphic together with Spec. "2. The next task is to do some work on image load (i mean pharo image). I need some handler which fires immediately after image is loaded. How to include my handler in this chain???? My app saves data into the image so i need to manage this and auto-load _my_ application after startup." This can happen in two way, the image provide a method called starUp for when the image starts and shutDown when the image closes. Any object can have these methods and Pharo will always make sure to execute them. Startup scripts are also an alternative , they are capable of firing only the first time you open the image or every time. I will be making a tutorial shortly for them but you can find an example in the mean time in my repo here https://github.com/kilon/makePharo/blob/master/startupPharo.st and I recommend the excellent blog post by Mariano https://marianopeck.wordpress.com/2012/05/12/startuploader-running-startup-… The nice thing about startup scripts is that they can be per image but also globally for all your images " 3. How to drag-n-drop from the host operation system into pharo application and vice versa? I need to drag-n-drop a list of files from\to file browser." Drag and Drop can be a tricky one because its a Morphic and will require some experience with Morphic. Morph which is basically the base class of all gui element 3 relevant methods. a) dropFiles: b) handleDropFiles: c) wantsDropFiles: PasteUpMorph dropFiles: is the the method that handles dropped files on the background of the Pharo window. Of course PasteUpMorph inherits from Morph . I cannot give you any more info because I never tried to use it. "4. Application deployment. How to strip the unnecessary code from the image? I've heard there is "small image" to add all-i-need-to-run. Where i can download it and how to use it????" There will not be a tool that will do this for you automagically. There is project to bootstrap Pharo. It also depends why you want to get rid of those unecessary packages, if you wanna do it to decrease Pharo size on your disk then unfortunately you wont achieve much because Cuis for example that has 13 times less classes than pharo is only 50% smaller and thats the image alone, obviously VM is same size. If you are worried about quick updates and you dont want your user to redownload pharo , there is a way to update your code via git and github wihout your user having to install git or be github member. You could even auto update in the background. The only Smalltalk that I am aware of that can go bellow 10mbs , which is what is I would call "small" , is spoon that can get even tiny, down to just 1 kb without the vm.

Nov. 3, 2016

Re: [Pharo-users] [vwnc] small examples to show the tools

by stepharo

Nice :) > When I made the presentation in the Greek Hackespace in Athens, I > tried to illustrate how Smalltalk is a live organism. Took me 10 > minutes to do that. The rest, 20 minutes, was spent with me debugging > the GUI of ChronosManager, I inserted a bug and show how I fixed it > without the GUI stoping and of course demonstrated the use of halos > and the inspector.

Nov. 3, 2016