- Pharo-users - lists.pharo.org

How can an image know it is running headless?

by Johan Fabry

Hi all, I would like to know how to know if the image is running in headless mode. Is there an expression I can run in my code to establish that? TIA, -- Does this mail seem too brief? Sorry for that, I donât mean to be rude! Please see http://emailcharter.org . Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

June 22, 2016

Re: [Pharo-users] Styling a Pharo UI application

by Dimitris Chloupis

Documentation is always a problem. I dont use Spec because I dont like it , but I use Morphic for my project ChronosManager. I do some "styling" for example use different fonts for different labels , different sizes , I format strings to time stamps and even offer easy ways for user to change them without modifying the whole string. You can do a lot with Morphic, though I have not played with layout stuff since this GUI is static and image (PNGs) based but yeah Morphic can do that as well. My project is on Catalog browser and it has class comments , dont know if this exactly what you want but it may be a good start. Obviously there are a ton of things you can do with a web page that Morphic will not offer you out of the box. You can use Html as the front end / GUI and keep Pharo as the backend, thats how most web apps made with Pharo work. This you get the full power of Html/JS and Pharo. Seaside has classes that map html to pharo methods so you dont have to write html and js, and also I remember a pharo library dealing with CSS. Another option is to use a GUI API like QT , I have tried this with my python bridge and it works at least on a very basic level, again similar recipe to the above solution. But yeah if you are not too demanding I think Morphic will serve you well. Personally I only like Morphic , its the only GUI API that does not kill my inner child. On Wed, Jun 22, 2016 at 5:44 PM Tommaso Dal Sasso < tommaso.dalsasso(a)gmail.com> wrote: > 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

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