September 2017 - Pharo-users

Re: [Pharo-users] (no subject)

by Christophe Demarey

Hi Serge, > Le 14 sept. 2017 Ã 14:59, Serge Stinckwich <serge.stinckwich(a)gmail.com> a Ã©crit : > > On Thu, Sep 14, 2017 at 2:25 PM, Christophe Demarey <christophe.demarey(a)inria.fr <mailto:christophe.demarey@inria.fr>> wrote: > Hi, > > I published an update of the Launcher yesterday fixing some issues to run Pharo images from Linux. You can find latest-versions (0.2.13) here: http://files.pharo.org/platform/launcher/ <http://files.pharo.org/platform/launcher/> > It already propose to download Pharo 70 images. The VM is now downloaded automatically if the adequate one is not available. > Let us know if everything is fine. > > > > âHi Christophe, > > thank you for your support on PharoLauncher ! > âI dl the last version for Mac OS X: Pharo_0.2.13.dmg > This is really nice to be able to download the VM depending on the VM. Yes. without that feature, the launcher started to be useless. > I have only two issues: > - some icons do no show up when PharoLauncher is launch. They only appear when on mouse hover. yes, a regression in Pharo 6 :( > - for some of my images, I have an error: Instances of UndefinedObject are not indexable. Could you send me the stacktrace and / or the images if possible?

Sept. 14, 2017

Re: [Pharo-users] execute a code block at a given time in pharo ?

by HernÃ¡n Morales Durand

http://www.smalltalkhub.com/#!/~TorstenBergmann/Scheduler Cheers, HernÃ¡n 2017-09-13 17:36 GMT-03:00 Daniel BLANC <daniel.blanc(a)gmail.com>: > Hi All, > > I'm a very beginner with smalltalk. I am building a small seaside app for > controlling wifi access of my teenagers kids. In this app I need to start or > stop the wifi acces at a given time. > For the moment I'm doing it with an infinite loop in a process, with this > code: > > WifiController >> startScheduler > ^ SchedulerProcess > ifNil: [ SchedulerProcess := [ [ true ] > whileTrue: [ self schedulerApplyAutoStartStopRules. > 56 seconds wait ] ] forkNamed: 'DanWifiManagerScheduler' ] > > > I'm wondering if there is a way to do this without this infinite loop ? May > be there is a class in the standard pharo image that can execute a code > block at a given time ? > > Thanks, > Daniel

Sept. 14, 2017

Re: [Pharo-users] Writing XML

by Stephane Ducasse

Henrik is cool :) On Thu, Sep 14, 2017 at 8:17 PM, Jimmie Houchin <jlhouchin(a)gmail.com> wrote: > Thanks. I am trying to learn the ways of Pharo 6 and not use > StandardFileStream and MultiByteFileStream. So I do not know all of the best > ways to do things. Thanks for the education. Your "best" way worked > perfectly in Pharo 6. > > Again, thanks. > > > Jimmie > > > > On 09/14/2017 07:24 AM, Henrik Sperre Johansen wrote: >> >> Jimmie Houchin-5 wrote >>> >>> I still do not know how to do this correctly. But I have something that >>> seems to work for the moment. >>> >>> Using #asUTF8Bytes >>> >>> f nextPutAll: (writer write contents asUTF8Bytes). >>> >>> Now the file is in UTF-8 and normal size. >> >> >> openForWriteFileNamed: opens a binary stream (... which incidentally, also >> lets you put strings/widestrings as if they were bytes/doublewords), to >> write string source as utf8, the best way is to wrap it in a stream which >> converts strings -> utf8 bytes, an example: >> >> binaryStream := (ByteArray new: 100) writeStream. >> encodedStream := ZnCharacterWriteStream on: binaryStream encoding: #utf8. >> encodedStream nextPutAll: 'â¬'. >> binaryStream contents >> >> The "best"* way is to use an API which provides an encoded stream with >> scoped use (so you don't have to close it manually); for instance: >> '/home/jimmie/xmldoc.xml' asFileReference writeStreamDo: [ :ws | ws >> nextPutAll: writer write contents ] >> should default to a file stream outputting utf8. >> >> Cheers, >> Henry >> >> *May or may not work in Pharo 7 though, seeing as how the old default >> encoded stream has been deprecated, I haven't checked. >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> > >

Sept. 14, 2017

Re: [Pharo-users] execute a code block at a given time in pharo ?

by Stephane Ducasse

Welcome daniel This sounds like a super cool app. (I have teens at home and well I know the story). I remember a calendar triggering system.... but I do not know where it is. Someone should know. Stef On Wed, Sep 13, 2017 at 10:36 PM, Daniel BLANC <daniel.blanc(a)gmail.com> wrote: > Hi All, > > I'm a very beginner with smalltalk. I am building a small seaside app for > controlling wifi access of my teenagers kids. In this app I need to start or > stop the wifi acces at a given time. > For the moment I'm doing it with an infinite loop in a process, with this > code: > > WifiController >> startScheduler > ^ SchedulerProcess > ifNil: [ SchedulerProcess := [ [ true ] > whileTrue: [ self schedulerApplyAutoStartStopRules. > 56 seconds wait ] ] forkNamed: 'DanWifiManagerScheduler' ] > > > I'm wondering if there is a way to do this without this infinite loop ? May > be there is a class in the standard pharo image that can execute a code > block at a given time ? > > Thanks, > Daniel

Sept. 14, 2017

Re: [Pharo-users] PlotMorph on Pharo 6.1

by Stephane Ducasse

Alex you should propose stable version and not development to people else they will also may have problem. On Thu, Sep 14, 2017 at 8:43 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > I think that block arguments are like method arguments and are read only. > Now I do not remember. > > On Wed, Sep 13, 2017 at 8:39 PM, Stephan Eggermont <stephan(a)stack.nl> wrote: >> On 13/09/17 19:22, Mark Bestley wrote: >> >>> Unfortunatley not. That error has gone but I now get >> >>> >>> >>> x := x rounded. >> >> >> Yes, that is the question I posed. >> Assignment to block variables is prohibited now? >> >> Stephan >> >> >> >>

Sept. 14, 2017

Re: [Pharo-users] PlotMorph on Pharo 6.1

by Stephane Ducasse

I think that block arguments are like method arguments and are read only. Now I do not remember. On Wed, Sep 13, 2017 at 8:39 PM, Stephan Eggermont <stephan(a)stack.nl> wrote: > On 13/09/17 19:22, Mark Bestley wrote: > >> Unfortunatley not. That error has gone but I now get > >> >> >> x := x rounded. > > > Yes, that is the question I posed. > Assignment to block variables is prohibited now? > > Stephan > > > >

Sept. 14, 2017

Re: [Pharo-users] PlotMorph on Pharo 6.1

by Stephane Ducasse

I do not get what you mean. Stefan fixed the problem so may be there is a problem on 64 bits. I have no idea. So far he fixes the previous problem. So let us fix the new one. But so far I cannot reproduce it. On Wed, Sep 13, 2017 at 7:26 PM, Mark Bestley <st(a)bestley.co.uk> wrote: > In this case shouldm't the catalog only be added to if someone actually > takes an action to do this - then there is a chance the code would be > checked. Otherwise rollinmg over from one release to another just > accumulates junk. > > > > Stephane Ducasse <stepharo.self(a)gmail.com> > wrote: > >> Thanks for the report since I need PlotMorph too for a project. >> What you see is the consequence of lack of validation of published >> packages. This is years that I'm saying that I need someone to work on >> that. >> We got money from inria for Pavel to work on it but the bootstrap was >> more important :). >> > > > -- > Mark > >

Sept. 14, 2017

Re: [Pharo-users] PlotMorph on Pharo 6.1

by Stephane Ducasse

Hi mark live is chaotic here with two or three meetings in parallel, visitors, and a lecture to finish Now I tested. I took a Pharo 6.1 32 bits and loaded PlotMorph from the catalog It load Stefaneggermont.8 Can you tell us how to reproduce your problem? On Wed, Sep 13, 2017 at 7:22 PM, Mark Bestley <st(a)bestley.co.uk> wrote: > Stephane Ducasse <stepharo.self(a)gmail.com> > wrote: > >> Excellent! >> >> >> On Mon, Sep 11, 2017 at 8:10 PM, stephan > <stephan(a)stack.nl> wrote: >> > On 11-09-17 19:20, Stephane Ducasse wrote: >> >> >> >> Stefan >> >> >> >> (Did you publish the configuration in the PlotMorph repo?) >> >> ifTrue: [ Stefan isPerfect ] >> > >> > >> > PlotMorph, MetaRepos for Pharo 5 and 6 :) >> > >> > >> > >> > > > Unfortunatley not. That error has gone but I now get > > Fetched -> ConfigurationOfPlotMorph-StephanEggermont.5 --- > http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main/ --- > http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main/ > Loaded -> ConfigurationOfPlotMorph-StephanEggermont.5 --- > http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main/ --- > http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main/ > Loading 1.1 of ConfigurationOfPlotMorph... > Fetched -> PlotMorph-StephanEggermont.8 --- > http://smalltalkhub.com/mc/PharoExtras/PlotMorph/main/ --- > http://smalltalkhub.com/mc/PharoExtras/PlotMorph/main/ > OCStoreIntoReadOnlyVariableError: Cannot store into > PlotMorphGrid > drawGridOn: aCanvas > | gridColor lighter darker baseColor bounds | > baseColor := plot baseColor alpha: 1. > lighter := baseColor twiceLighter. > darker := baseColor twiceDarker. > gridColor := (lighter diff: baseColor) > (darker diff: baseColor) > ifTrue: [ lighter ] > ifFalse: [ darker ]. > bounds := plot drawBounds. > (bounds left to: bounds right by: (self bestStep: bounds width)) > do: [ :x | > x := x rounded. > aCanvas line: x @ bounds top to: x @ bounds bottom color: > gridColor ]. > (bounds top to: bounds bottom by: (self bestStep: bounds height)) > do: [ :y | > y := y rounded. > aCanvas line: bounds left @ y to: bounds right @ y color: > gridColor ] > OCStoreIntoReadOnlyVariableError: Cannot store into > PlotMorphGrid > drawGridOn: aCanvas > | gridColor lighter darker baseColor bounds | > baseColor := plot baseColor alpha: 1. > lighter := baseColor twiceLighter. > darker := baseColor twiceDarker. > gridColor := (lighter diff: baseColor) > (darker diff: baseColor) > ifTrue: [ lighter ] > ifFalse: [ darker ]. > bounds := plot drawBounds. > (bounds left to: bounds right by: (self bestStep: bounds width)) > do: [ :x | > x := x rounded. > aCanvas line: x @ bounds top to: x @ bounds bottom color: > gridColor ]. > (bounds top to: bounds bottom by: (self bestStep: bounds height)) > do: [ :y | > y := y rounded. > aCanvas line: bounds left @ y to: bounds right @ y color: > gridColor ] > OCStoreIntoReadOnlyVariableError: Cannot store into > AxesMorph > drawGridOn: aCanvas > | gridColor right bottom width height lighter darker baseColor | > baseColor := self baseColor. > lighter := baseColor twiceLighter. > darker := baseColor twiceDarker. > gridColor := (lighter diff: baseColor) > (darker diff: baseColor) > ifTrue: [ lighter ] > ifFalse: [ darker ]. > right := self bounds width - margin. > width := self bounds width - (margin * 2). > bottom := self bounds height - margin. > height := self bounds height - (margin * 2). > (margin to: right by: width / 10) > do: [ :x | > x := x rounded. > aCanvas line: x @ margin to: x @ bottom color: gridColor ]. > (margin to: bottom by: height / 10) > do: [ :y | > y := y rounded. > aCanvas line: margin @ y to: right @ y color: gridColor ] > OCStoreIntoReadOnlyVariableError: Cannot store into > AxesMorph > drawGridOn: aCanvas > | gridColor right bottom width height lighter darker baseColor | > baseColor := self baseColor. > lighter := baseColor twiceLighter. > darker := baseColor twiceDarker. > gridColor := (lighter diff: baseColor) > (darker diff: baseColor) > ifTrue: [ lighter ] > ifFalse: [ darker ]. > right := self bounds width - margin. > width := self bounds width - (margin * 2). > bottom := self bounds height - margin. > height := self bounds height - (margin * 2). > (margin to: right by: width / 10) > do: [ :x | > x := x rounded. > aCanvas line: x @ margin to: x @ bottom color: gridColor ]. > (margin to: bottom by: height / 10) > do: [ :y | > y := y rounded. > aCanvas line: margin @ y to: right @ y color: gridColor ] > Loaded -> PlotMorph-StephanEggermont.8 --- > http://smalltalkhub.com/mc/PharoExtras/PlotMorph/main/ --- cache > ...finished 1.1 > > > > -- > Mark > >

Sept. 14, 2017

Re: [Pharo-users] (no subject)

by stephan

On 14-09-17 18:47, Stephane Ducasse wrote: > Thanks christophe this is super cool to see some efforts on that cool tool. +1 Definitely don't let my observations distract you from improving it. Thanks, Stephan

Sept. 14, 2017

Re: [Pharo-users] Let's prepare for Google Code-In 2017 with Pharo Consortium

by Stephane Ducasse

Thanks We can start to use https://github.com/SquareBracketAssociates/PharoInProgress/blob/master/ST99… the idea was that a guy wanted to have a lot of small exercises. Damien mentions exercism.io And we should take some of them. Stef On Mon, Sep 11, 2017 at 4:29 PM, Guillermo Polito <guillermopolito(a)gmail.com > wrote: > Yes this is cool. We need to get a decent set of tasks. > > On Sat, Sep 9, 2017 at 5:24 PM, Jigyasa Grover <grover.jigyasa1(a)gmail.com> > wrote: > >> Thanks Stef for your support. >> >> I have already added you in the private repository "GCI-2017-with-Pharo", >> as >> we need to keep prospective students away from the task list before the >> program begins ð >> >> Looking forward to more ideas on the task list. >> >> Thanks a lot. >> >> Best >> Jigyasa Grover >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> > > > -- > > > > Guille Polito > > > Research Engineer > > French National Center for Scientific Research - *http://www.cnrs.fr* > <http://www.cnrs.fr> > > > > *Web:* *http://guillep.github.io* <http://guillep.github.io> > > *Phone: *+33 06 52 70 66 13 <+33%206%2052%2070%2066%2013> >

Sept. 14, 2017