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

Styling a Pharo UI application

by Tommaso Dal Sasso

Hello everybody, I have a question about the UI toolkits available for Pharo. I already asked something about this on Slack, but since I saw that there was a recent discussion about UI in the mailing list, I think this is a better place to discuss the matter. I am writing an application for Pharo where I am displaying some structured text. The structure is similar to the one of a web page: A main title with a list of paragraphs, where each paragraph has a title and a description. What I would like to do is to format the text to present the contents in a meaningful way: For example, I would like a bigger font for the title, and change the background of the text, to give a better separation between the paragraphs. Basically I would like to manipulate and display my contents as I would do in a web page. To write UI widgets I usually use Spec, but I found that going beyond easy formatting (e.g. bold text and emphasis) is harder than I thought. I saw there were discussion about the styling text and the role of the theme class, using TextStyle but that part is not really documented. So far, the easiest way to solve my problem seems to be to use Morphic to display the contents as I want it, and then include my widget in my spec application. Do you have any suggestions about how to do that? I think that styling the UI widgets is an important part of the application development, but it is really hard to find documentation about this. Thanks, have a nice day! Tommaso

June 22, 2016

Re: [Pharo-users] File Policy

by Christophe Demarey

> Le 22 juin 2016 Ã 14:05, Valentin Ryckewaert <valentin.ryckewaert(a)gmail.com> a Ã©crit : > > Hello everyone, > > i'm currently working on making Pharo able to manage if it writes on his files.I created a class which can define it, then I'm already able, for example, to define if Pharo writes on pharo.changes or not. > > The meaning of this is to make Pharo able to execute a script but without being modified by it, a script shouldn't let any trace of its execution on the image or on Pharo files. > > My problem concern PharoDebug.log, I would like to know what you prefer Pharo to do with it in the case we configured it to not write on his files (changes, source,image....). > Should Pharo writes the logs in the terminal ? in a tmp file ? or just in PharoDebug.log ? If you want to use Pharo as a script interpreter, then just do like other interpreter: report results and errors on stdout / stderr. Then, you can redirect the output to also have it in a file if you want. I would not use PharoDebug.log or any other file. Christophe

June 22, 2016

File Policy

by Valentin Ryckewaert

Hello everyone, i'm currently working on making Pharo able to manage if it writes on his files.I created a class which can define it, then I'm already able, for example, to define if Pharo writes on pharo.changes or not. The meaning of this is to make Pharo able to execute a script but without being modified by it, a script shouldn't let any trace of its execution on the image or on Pharo files. My problem concern PharoDebug.log, I would like to know what you prefer Pharo to do with it in the case we configured it to not write on his files (changes, source,image....). Should Pharo writes the logs in the terminal ? in a tmp file ? or just in PharoDebug.log ? Valentin

June 22, 2016

Pharo Sprint Fr, 24 June

by Marcus Denker

Hi, A bit late this ANNâ¦ sorry We will organize a Pharo sprint / Moose dojo Friday, 24 June, starting at 10:00am. (Local Time Paris/Berlin/â¦.). Remotely, you can join us on Slack or the IRC channel #pharo on irc.freenode.net <http://irc.freenode.net/> server. During the sprint, we will try to synchronize local and remote Pharo sprinters. Locally, there will be: - Inria Lille, Building B, third floor (RMoD offices). (As the building is not open to the public, please contact us before in case of visiting) - Santiago de Chile (starting a bit later due to time-zone). DCC University of Chile. Marcus

June 21, 2016

Re: [Pharo-users] [Pharo-dev] catalog will be down 1hr

by Sven Van Caekenberghe

Thanks for taking care ! Any change you thought about this one: https://pharo.fogbugz.com/f/cases/17927/Pharo-Project-Catalog-should-be-ser… ? > On 21 Jun 2016, at 14:53, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > ok, is up again :) > >> On 21 Jun 2016, at 14:11, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >> >> Hi, >> >> I will apply some updates to catalog (backend, they will not be visible) >> >> cheers, >> Esteban >> > >

June 21, 2016

Re: [Pharo-users] catalog will be down 1hr

by Esteban Lorenzano

ok, is up again :) > On 21 Jun 2016, at 14:11, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > Hi, > > I will apply some updates to catalog (backend, they will not be visible) > > cheers, > Esteban >

June 21, 2016

catalog will be down 1hr

by Esteban Lorenzano

Hi, I will apply some updates to catalog (backend, they will not be visible) cheers, Esteban

June 21, 2016

Re: [Pharo-users] Symbolic links in Pharo

by Peter UhnÃ¡k

1) you can fork in the program you are launching 2) you can fork in the command you are launchingâ¦ just like a regular shell (because that's what system() does) e.g. MyObject new system: '{ sleep 5; touch /tmp/test.txt; } &' On Tue, Jun 21, 2016 at 11:00 AM, Hilaire <hilaire(a)drgeo.eu> wrote: > So cool. > For a command taking some time to execute, can it be make non-blocking > for the image? > > For example when using it from a Seaside server where you need to > execute such a command but you do not want to bock all the Seaside > sessions. > > Thanks > > Hilaire > > Le 20/06/2016 18:03, Peter UhnÃ¡k a Ã©crit : > > You can use FFI; just create an object with a methodâ¦ > > > > MyObject>>system: command > > "Perform OS system() call." > > > > ^ self ffiCall: #(int system #(char * command)) module: LibC > > > > > > And then you can do something like > > > > MyObject new system: 'ln -s /tmp/source /tmp/target' > > -- > Dr. Geo > http://drgeo.eu > > >

June 21, 2016

Re: [Pharo-users] Symbolic links in Pharo

by Hilaire

So cool. For a command taking some time to execute, can it be make non-blocking for the image? For example when using it from a Seaside server where you need to execute such a command but you do not want to bock all the Seaside sessions. Thanks Hilaire Le 20/06/2016 18:03, Peter UhnÃ¡k a Ã©crit : > You can use FFI; just create an object with a methodâ¦ > > MyObject>>system: command > "Perform OS system() call." > > ^ self ffiCall: #(int system #(char * command)) module: LibC > > > And then you can do something like > > MyObject new system: 'ln -s /tmp/source /tmp/target' -- Dr. Geo http://drgeo.eu

June 21, 2016

Re: [Pharo-users] Using OSSubProcess to invoke Java

by Alexandre Bergel

Yes it does! Thanks!!! Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > On Jun 20, 2016, at 12:32 PM, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > > > > On Mon, Jun 20, 2016 at 1:10 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com <mailto:i.uhnak@gmail.com>> wrote: > #runAndWaitOnExitDo: takes a cull-ed three-arg block with the process, stdout, and stderr; that way you can process stdout and stderr independently. > > > Exactly. > > Try this > > OSSUnixSubprocess new > command: '/usr/bin/java'; > arguments: #('-version'); > redirectStderr; > runAndWaitOnExitDo: [ :process :out :err | > err inspect > ]. > > > Indeed. This is what I think should work. And yes, I don't think the 'JAVA_HOME' is needed. At least for this command. > > Alex, let us know if Peter code worked. > > Cheers, > > > Peter > > On Mon, Jun 20, 2016 at 6:03 PM, Alexandre Bergel <alexandre.bergel(a)me.com <mailto:alexandre.bergel@me.com>> wrote: > Hi Mark, > > This is what I thought. But it does not seem to work. I tried: > > OSSUnixSubprocess new > command: '/usr/bin/java'; > arguments: #('-version'); > redirectStderr; > > runAndWaitOnExitDo: [ :process :outString | > outString inspect > ]. > > Or is it the redirectStderr that does not work properly? > > Cheers, > Alexandre > > > > On Jun 20, 2016, at 11:42 AM, Mark Bestley <st(a)bestley.co.uk <mailto:st@bestley.co.uk>> wrote: > > > > java -version outputs to stderr not stdout (also I don't think you need JAVA_HOME /usr/bin/java will do what is needed) > > > > > > > > On 20/06/2016 15:58, Alexandre Bergel wrote: > > > >> On OS X, in a terminal, if I type: /usr/bin/java -version > >> I obtain: > >> java version "1.8.0_66" > >> Java(TM) SE Runtime Environment (build 1.8.0_66-b17) > >> Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode) > >> > >> Using OSSubProcess, do-it-ing the following: > >> > >> OSSUnixSubprocess new > >> command: '/usr/bin/java'; > >> arguments: #('-version'); > >> environmentAt: 'JAVA_HOME' put: '/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home'; > >> redirectStderr; > >> redirectStdout; > >> runAndWaitOnExitDo: [ :process :outString | > >> outString inspect > >> ]. > >> > >> inspect an empty string. > >> Any idea whatâs going on? > >> > > > > > > > > -- > > Mark > > > > > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu <http://www.bergel.eu/> > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > > > > -- > Mariano > http://marianopeck.wordpress.com <http://marianopeck.wordpress.com/>

June 20, 2016