- Pharo-users - lists.pharo.org

Re: [Pharo-users] Any hope for Smalltalk on Raspberry Pi?

by Damien Pollet

libusb seems to be plain C, so it would make a nice use-case for uFFI http://www.libusb.org There was an attempt at making a binding last year: https://www.mail-archive.com/pharo-users@lists.pharo.org/msg17312.html On 17 April 2016 at 12:15, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > This seems relevant: > > https://medium.com/concerning-pharo/pharo-pi-9eef257b6a21#.ay5v86peq > https://www.youtube.com/watch?v=sfxFqQIuawg > > Peter > > On Sun, Apr 17, 2016 at 9:52 AM, stepharo <stepharo(a)free.fr> wrote: > >> First hello and welcome to Pharo. >> >> Second can you be clear about what you want to achieve? >> >> >> I have Squeak on a RPi but I don't know how to access any USB peripherals >>> or how to make primitives to do so. I want to use RPi for controlling a >>> microcontroller and processing webcam video for my robot. >>> >> That would be really nice. >> >>> If I can't get that in Smalltalk can it be added >>> >> I do not know RPi >> the system can be extended >> - adding a vm pluging (check the new blue book on my web page to >> get an idea) >> - doing an FFI call (now I do not know the status of the FFI on >> rasp) >> >> or what language should I move to? >>> >>> I was referred to >>> http://car.mines-douai.fr/category/software/pharos/ >>> but I can't get it to work on RPi. >>> >> What are the exact problems you face? >> Because this is a bit short. >> >>> >>> A major focus of RPi is to teach electronics but without access to the >>> peripherals, Smallltalk is not useful. But some access is available in >>> Scratch which is built on top of Squeak so why can't I get access to that >>> code directly instead of going through the Scratch changes file? >>> >> I do not know. May be this is just one pluging missing. >> Did you check Phratch? >> >> >> Why can't I get Smalltalk goodies like I used to buy from Digitalk? >>> >> You see: >> - the world got more complex we provide vm for OSX, iOS, Windows >> (different flavors), rasp, android, linux (different flavors), >> - second so far Pharo is free. Now you can help either by offering >> some time or putting money for a bounty on the table >> - third we are really busy making sure that Pharo 5.0 is on time and >> robust. >> >>> With all the VM work, there must be a way to hook up C++ code like >>> OpenCV to do real time video contours and other image recognition >>> algorithms. >>> >> Forget about C++ the binary is not standard. You have to wrap the C++ >> library into a C program and you could used (now it changed because >> we do not use nativeboost anymore). >> >> Dolphin has a somewhat easy way to add primitives. >>> >> Pharo too. >> >> You should read the uFFI draft documentation. Check the mail if was sent >> recently. >> >> >>> If Squeak all in one contains package bundles only for Mac, why not >>> include essentials for RPi? >>> >> >> >> >

April 17, 2016

Re: [Pharo-users] Any hope for Smalltalk on Raspberry Pi?

by Peter UhnÃ¡k

This seems relevant: https://medium.com/concerning-pharo/pharo-pi-9eef257b6a21#.ay5v86peq https://www.youtube.com/watch?v=sfxFqQIuawg Peter On Sun, Apr 17, 2016 at 9:52 AM, stepharo <stepharo(a)free.fr> wrote: > First hello and welcome to Pharo. > > Second can you be clear about what you want to achieve? > > > I have Squeak on a RPi but I don't know how to access any USB peripherals >> or how to make primitives to do so. I want to use RPi for controlling a >> microcontroller and processing webcam video for my robot. >> > That would be really nice. > >> If I can't get that in Smalltalk can it be added >> > I do not know RPi > the system can be extended > - adding a vm pluging (check the new blue book on my web page to > get an idea) > - doing an FFI call (now I do not know the status of the FFI on > rasp) > > or what language should I move to? >> >> I was referred to >> http://car.mines-douai.fr/category/software/pharos/ >> but I can't get it to work on RPi. >> > What are the exact problems you face? > Because this is a bit short. > >> >> A major focus of RPi is to teach electronics but without access to the >> peripherals, Smallltalk is not useful. But some access is available in >> Scratch which is built on top of Squeak so why can't I get access to that >> code directly instead of going through the Scratch changes file? >> > I do not know. May be this is just one pluging missing. > Did you check Phratch? > > > Why can't I get Smalltalk goodies like I used to buy from Digitalk? >> > You see: > - the world got more complex we provide vm for OSX, iOS, Windows > (different flavors), rasp, android, linux (different flavors), > - second so far Pharo is free. Now you can help either by offering > some time or putting money for a bounty on the table > - third we are really busy making sure that Pharo 5.0 is on time and > robust. > >> With all the VM work, there must be a way to hook up C++ code like OpenCV >> to do real time video contours and other image recognition algorithms. >> > Forget about C++ the binary is not standard. You have to wrap the C++ > library into a C program and you could used (now it changed because > we do not use nativeboost anymore). > > Dolphin has a somewhat easy way to add primitives. >> > Pharo too. > > You should read the uFFI draft documentation. Check the mail if was sent > recently. > > >> If Squeak all in one contains package bundles only for Mac, why not >> include essentials for RPi? >> > > >

April 17, 2016

Re: [Pharo-users] Constants and the Playground

by Marcus Denker

> On 17 Apr 2016, at 10:43, Thibault Raffaillac <thibault.raffaillac(a)inria.fr> wrote: > >> What you could do is to generate class methods for each of the classvariable >> in pseudo code >> >> OpenGL classVariables do: [:each | >> OpenClass class compiled: each name, ' ^ ', each name classified: >> accessing ] >> >> this way you can do >> >> OpenGL MyConstant in the playground > > Problem is I have class methods in the same class, so this would make them hard to browse. I thought about implementing name search in the class DNU, but constants would not benefit from syntax coloring/completion then. > Can we import Pool Dictionaries in the Playground? > > I think it would be possible (and even not that hard) to add some âimportâ for Pools to playground. One would not do that by default, but there could be a UI (or an API) to configure a playground specially for scripting e.g. OpenGL with all the class vars pre-bound. Marus

April 17, 2016

Re: [Pharo-users] Constants and the Playground

by Thibault Raffaillac

> What you could do is to generate class methods for each of the classvariable > in pseudo code > > OpenGL classVariables do: [:each | > OpenClass class compiled: each name, ' ^ ', each name classified: > accessing ] > > this way you can do > > OpenGL MyConstant in the playground Problem is I have class methods in the same class, so this would make them hard to browse. I thought about implementing name search in the class DNU, but constants would not benefit from syntax coloring/completion then. Can we import Pool Dictionaries in the Playground? Thibault

April 17, 2016

Re: [Pharo-users] First impressions, was About Box

by Alistair Grant

On Sat, Apr 16, 2016 at 01:43:29PM +0200, Cyril Ferlicot wrote: > A new version of PBE is almost ready. You can find it atÂ https://ci.inria.fr/ > pharo-contribution/view/Books/job/UpdatedPharoByExample/lastSuccessfulBuild/ > artifact/book-result/UpdatedPharoByExample.pdfÂ . > Other formatsÂ https://ci.inria.fr/pharo-contribution/view/Books/job/ > UpdatedPharoByExample/lastSuccessfulBuild/artifact/book-result Are you looking for feedback? Thanks, Alistair

April 17, 2016

Re: [Pharo-users] Any hope for Smalltalk on Raspberry Pi?

by stepharo

First hello and welcome to Pharo. Second can you be clear about what you want to achieve? > I have Squeak on a RPi but I don't know how to access any USB > peripherals or how to make primitives to do so. I want to use RPi for > controlling a microcontroller and processing webcam video for my robot. That would be really nice. > If I can't get that in Smalltalk can it be added I do not know RPi the system can be extended - adding a vm pluging (check the new blue book on my web page to get an idea) - doing an FFI call (now I do not know the status of the FFI on rasp) > or what language should I move to? > > I was referred to > http://car.mines-douai.fr/category/software/pharos/ > but I can't get it to work on RPi. What are the exact problems you face? Because this is a bit short. > > A major focus of RPi is to teach electronics but without access to the > peripherals, Smallltalk is not useful. But some access is available > in Scratch which is built on top of Squeak so why can't I get access > to that code directly instead of going through the Scratch changes file? I do not know. May be this is just one pluging missing. Did you check Phratch? > Why can't I get Smalltalk goodies like I used to buy from Digitalk? You see: - the world got more complex we provide vm for OSX, iOS, Windows (different flavors), rasp, android, linux (different flavors), - second so far Pharo is free. Now you can help either by offering some time or putting money for a bounty on the table - third we are really busy making sure that Pharo 5.0 is on time and robust. > With all the VM work, there must be a way to hook up C++ code like > OpenCV to do real time video contours and other image recognition > algorithms. Forget about C++ the binary is not standard. You have to wrap the C++ library into a C program and you could used (now it changed because we do not use nativeboost anymore). > Dolphin has a somewhat easy way to add primitives. Pharo too. You should read the uFFI draft documentation. Check the mail if was sent recently. > > If Squeak all in one contains package bundles only for Mac, why not > include essentials for RPi?

April 17, 2016

Re: [Pharo-users] Dawn Theme on Pharo 4.0

by stepharo

Thanks Siemen Having it on SmalltalkHub would be nice. Stef Le 16/4/16 17:48, Siemen Baader a Ã©crit : > Hi again, > > I have cloned the Pharo3DawnTheme on github and updated the > installation instructions to work for Pharo 4.0. It is on > https://github.com/siemenbaader/Pharo3DawnTheme. > > Would it be better for the community to use Smalltalkhub, or is Github > the new thing people prefer? > > Have a nice weekend all, > > Siemen > > > On Wed, Apr 13, 2016 at 11:56 AM, Siemen Baader <[hidden email] > </user/SendEmail.jtp?type=node&node=4890307&i=0>> wrote: > > > > On Tue, Apr 12, 2016 at 8:54 PM, stepharo [via Smalltalk] <[hidden > email] </user/SendEmail.jtp?type=node&node=4890307&i=1>> wrote: > > Super! > Could you publish it somewhere because for my vision I cannot > use the dark theme. > > > > Sure - I'll do that. I'm new to Pharo and have to look a bit into > how, but I can make a fork on github and update the installation > instructions or publish a package for pharo4 on Smalltalkhub. Do > you prefer either site? > > -- Siemen > > I cannot see what is written in red :). > > Stef > > Le 12/4/16 20:47, Siemen Baader a Ã©crit : >> On Tue, Apr 12, 2016 at 7:43 PM, stepharo <[hidden email] >> <http:///user/SendEmail.jtp?type=node&node=4889618&i=0>> wrote: >> >> Check the code because it should just be a subclass of >> the dark theme >> with different colors. >> >> Stef >> >> >> Thanks, that helped me to adapt the instructions and make it >> work! >> >> -- Siemen >> > > > > ------------------------------------------------------------------------ > If you reply to this email, your message will be added to the > discussion below: > http://forum.world.st/Dawn-Theme-on-Pharo-4-0-tp4889541p4889618.html > > To unsubscribe from Dawn Theme on Pharo 4.0, click here. > NAML > <http://forum.world.st/template/NamlServlet.jtp?macro=macro_viewer&id=instan…> > > > > > > ------------------------------------------------------------------------ > View this message in context: Re: Dawn Theme on Pharo 4.0 > <http://forum.world.st/Dawn-Theme-on-Pharo-4-0-tp4889541p4890307.html> > Sent from the Pharo Smalltalk Users mailing list archive > <http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html> at Nabble.com.

April 17, 2016

Re: [Pharo-users] Trapping the Pharo window close event

by John Pfersich

> On Apr 16, 2016, at 03:30, Damien Pollet <damien.pollet+pharo(a)gmail.com> wrote: > >> On 16 April 2016 at 11:33, kmo <voxkmp(a)gmail.com> wrote: >> /Pharo is yours, so you can add it. :)/ >> >> Yes, but I don't want to add it. I expect it to be there out of the box. > > If you expect a perfect system out of the box, you will never get it. > >> think it's quite enough work for me to add my own code on window close. I >> don't want to have to write the framework for doing it as well. > > Point is, it's not by design if the feature you're asking for is absent out of the box; nobody in Pharo decided you should HAVE to implement it yourself. I think everyone agrees that the platform should provide that feature, however everyone is focused on different issues, and you seem to be the first one for whom it's an itch worth scratching. It's open-source, so the system is yours too and it's the responsibility of everyone to improve it. > > If you really need the feature but don't want to implement it yourself, you could sponsor someone via the Pharo association or the consortium. Or Bountysource or Bountysource Salt (https://salt.bountysource.com/teams/pharo)

April 17, 2016

Re: [Pharo-users] List with Border

by peaslee

> PluggableListMorph>borderStyleToUse > "Answer the borderStyle that should be used for the receiver." > > ^self enabled > ifTrue: [self theme listNormalBorderStyleFor: self] > ifFalse: [self theme listDisabledBorderStyleFor: self] > > If you then look at the different implementors of borderStyleToUse, > you'll notice that there are a lot of them that only ask the theme for > a style. > Stephan This last bit solved my problem for now. I had no luck with the subclass, etc., but I changed this method to dropListNormalBorderStyleFor: That gives me a border. ;>) -- View this message in context: http://forum.world.st/List-with-Border-tp4889556p4890356.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 16, 2016

Re: [Pharo-users] [Pharo-dev] GTDebugger shortcuts usability

by Peter UhnÃ¡k

> > Letâs turn this energy into something positive. Please propose a concrete > set of default keybindings that you think would work better. In this > process, please take into account all keybindings that are already defined > in the code editor (it might not be so easy as it appears). > As I've said: 1. can we unify the shift vs ctrl+shift nonsense? (I'm using linux btw) 2. can we use the default shortcuts pattern where one of the letters is underlined? as for the shortcuts themselves, problem is proceed, restart & into proceed: ctrl+shift+p is not taken, so I don't see why it has shortcut confusing with restart restart: ctrl+shift+r indents, but I'd argue that uniformity is more important here... indent is just convenience into: ctrl+shift+i is taken (I've never used it, but it maybe it's important), but we can still use ctrl+shift+n and underline n (point 2) If points 1 & 2 are implemented, then the letter is not as important, although first letter is always preferable. Peter > Cheers, > Doru > > > > On Apr 16, 2016, at 8:37 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > > > > Hi, > > > > I'm getting fed-up with GTDebugger shortcuts since they are completely > random. > > > > Can we have them more meaningful and/or somehow visible? > > > > For now I ended up overriding the labels so I can at least see them... > but doing this is also stupid, because I still have to look at them since I > cannot remember random shortcuts. > > > > <debugger.png> > > â > > 1. can we unify the shift vs ctrl+shift nonsense? (I'm using linux btw) > > 2. can we use the default shortcuts pattern where one of the letters is > underlined? > > > > Peter > > -- > www.tudorgirba.com > www.feenk.com > > "Value is always contextual." > > > > > >

April 16, 2016