August 2020 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Text-Editing UI

by tbrunz

It might be best to have this be configurable/customizable for each user (which is what I think you're getting at). The question is what should the default "out of the box" behavior be? There are conventions, although they're not exactly "standardized" (as they should be). Most of us have "muscle memory" for many of these operations: Go forward one word, select a paragraph, expectations of where the cursor will be when you go forward/backward word-by-word, etc. and I don't think anyone enjoys having to learn a different way for every tool they use. So the default probably should follow the most common conventions, while still allowing a fairly easy way to change it to suit each user. The best approach might be to have the default adapt itself automatically to the platform the VM is running on, so that Windows users get Windows conventions, Mac users get Mac conventions, Linux users get Linux conventions. -t -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 2, 2020

Re: [Pharo-users] smalltalkhub down

by StÃ©phane Ducasse

Yes the old server is having pain. I will advertise a bit http://static.smalltalkhub.com/ S > On 13 Jul 2020, at 21:19, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Hi Christophe, > > Thanks a lot for taking care. > > About the static version: that already looks great, it even has a search interface. > > What functionality is still missing if I may ask ? Do you need help ? > > I think it would be good to switch to this version as soon as possible to prevent future complaints. > > Sven > >> On 13 Jul 2020, at 20:35, Christophe Demarey <christophe.demarey(a)inria.fr> wrote: >> >> Hi all, >> >> Sorry for the downtime. Smalltalkhub should be up again. >> Also, even if it is not yet fully ready, you can take a look at the static version of smalltalkhub: http://static.smalltalkhub.com/ >> >> Regards >> >>> Le 13 juil. 2020 Ã 17:20, Offray Vladimir Luna CÃ¡rdenas <offray.luna(a)mutabit.com> a Ã©crit : >>> >>> I can confirm all these issues, from StHub non-available to error 400, >>> to VOMongoConnextionError. >>> >>> For me, anything that allow us to keep running GitMigrationTool as >>> documentent would be good, no matter if the site is static or not. If >>> web interface is not available, but there is anyway to get a list of the >>> projects one once hosted in StHub, that's fine. >>> >>> Cheers, >>> >>> Offray >>> >>> On 13/07/20 8:15 a. m., Sven Van Caekenberghe wrote: >>>> Yes, when you try to download a .mcz file you get a VOMongoConnectionError. >>>> >>>> So something is still not right. >>>> >>>> It would probably be better to move to a statically hosted web site ASAP, but then people will probably complain that the web UI is gone. >>>> >>>>> On 13 Jul 2020, at 11:57, Roch-Alexandre NominÃ© <roch(a)petaouchnok.org> wrote: >>>>> >>>>> Hi Sven, >>>>> >>>>> The web interface is up but it seems impossible to download .mcz , every attempt ends with a timeout. >>>>> >>>>> Best regards >>>>> >>>>> Roch. >>>>> >>>>> Le lun. 13 juil. 2020 Ã 10:06, Sven Van Caekenberghe <sven(a)stfx.eu> a Ã©crit : >>>>> >>>>> >>>>>> On 12 Jul 2020, at 11:19, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >>>>>> >>>>>> I am sure somebody will fix the *readonly* version of SmalltalkHub as soon as possible. >>>>> It is up again. >>>>> >>>>> But, https://downforeveryoneorjustme.com/github ! >>>> >>> >> >> > > -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020

Re: [Pharo-users] Text-Editing UI

by StÃ©phane Ducasse

Hello Alex > Hello. I would like to modify the text-editing UI in Pharo to add some affordances Iâm accustomed to from MacOS. Specifically, right now command(a.k.a. meta)-left/right-arrow moves one word left/right in Pharo, whereas on MacOS this is done with the option(a.k.a. alt)-key, and command-left/right-arrow moves to the start/end of the current visual line. We would love you to be able to do it. > Another MacOS convention I use a lot and would like in Pharo is triple-click to select a whole paragraph. And if I can implement that, I would also like to disable the corresponding Pharo convention (double click at the start or end of the paragraph). For the tripple-click I do not know. Now if you want to try use the headless vm (because we are introducing SDL20 as a backend to capture event and expose them to the user so you will be able to get all the events from the OS and not some as it was previously the case) and ask. Using SDL20 we were able to implement several gesture recognition in the past. > Some smaller things that Iâm also not used to: When moving the text cursor one word at a time, Pharo treats white space as words, whereas MacOS skips over white space. Conversely, when double-clicking to select a whole word, MacOS treats white space between words like a word, whereas Pharo selects the adjacent word. Yes Pharo could really improve from that perspectiv. If you provide a fix we will really look at it and probably accept it. At some point we want to have move to the end of the next word. :) > So anyway, Iâm wondering what I would have to modify to customize these UI conventions. I didnât see anything relevant in the settings browser. (There was a "Skip over white spaceâ option under "Text Editing," but it didnât affect how the move-cursor-one-word-at-a-time keystrokes work, so I donât know what it does.) Does anyone have any pointers on where these behaviors are encoded in the system? Check the keymapper. And what you should know is that we are not happy with the text editor (Rubric was never made to stay). > Or if someone has already posted a package for customizing this sort of thing? > > Alex Landraitis -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020

Re: [Pharo-users] About some stuff to know if I launch new project to build Graphical User Interface for a database...

by StÃ©phane Ducasse

Hello patrick > I'm testing pharo and I would like to know about some things I can't yet really get with documentation : > 1. I was asking myself about delivries for (no pharo) end users. I don't want end user use pharo launcher and look at image to load it. I saw article about to build standalone executable but it was for website into a serveur. What about standalone application with graphical interface ? > > Yes the PharoLauncher is the typical example of this. You can also run pharo without ui or customize i > 2. What differences between each smalltalk implementations ? What about Gnu Smalltalk, Smalltalk/X, VisualWork or Pharo ? Do you know a functionnal benchmark web page ? > No because you compare apples with oranges. VIsualWorks is proprietary Smalltalk/X is not supported nor open source GnuSmalltalk (check the activity) > 3. What about standard about pharo language and libraries ? > I do not get your question. If you want to have answers to people deploying pro applications with Pharo you can ask on the discord channel (databases, general, seaside for example). > It look pretty difficult to get ride with smalltalk librariesâ¦ > I do not understand what you means. You can try in french since we understand it well too :) > What do you recomand to know about libaries and tools to build a graphical application with embeded database application (Like firebird or EasySQL or PostGresql) ? > We do not have an easy builder. For graphical applications you can use Spec1 (we are about to release Spec2) we are slowly rewriting the book for spec20. Here is a small tutorial https://github.com/Ducasse/smalltodo-example/blob/master/SmallTODO-Tutorial… > Do I need an Object Mapping Framework ? > Not necessarily You have Restore Glorp (check the book, you may have to load the code from github instead of smalltalkhub). Both are open-source You have P3 as a great support for database. But the best you can do is to ask in the database channel on https://discord.gg/QewZMZa <https://discord.gg/QewZMZa> > Do you know one open source ? > You have also document oriented DB support (check the booklet on Voyage) on http://books.pharo.org > 4. What about database reporting (with subreports) framework/library ? > I do not know > 5. What about smart forms with Database ? > > 6. I'm programming into Linux Mint 9.3. Can I build delivry for Windows from Linux Mint ? > Sure we deliver from any platforms to any other one. > Do I need to export/import my project into Windows in order to build Windows delivry ? > > Is'it possible to launch an executable from USB without no install ? > Yes this is the way I was used to give lecture. Bring the VM and the image on a stick and students just copy it. > 7. I would like to use events to program Graphical User Interfaces as database frontend. > I could not really understand events. We have announcements and the graphical libraries can register callbacks and notification. But this is the job of the libraries to decide how to do it and as developers we follow. > Do you know avanced book to explain semaphores, > http://books.pharo.org Check the booklet on concurrent programming > graphicals framework for cross delivries (Linux / Windows) ? > http://books.pharo.org Spec book but with Spec2 you will be able to use GTK as backends > Thank you in advance for your responses. Do not hesitate to ask. You can also chat with us (even if a part of the crew in Lille will be on vacation soon) My little advice is the following: Pharo is really powerful but it can feel strange. It is not perfect but we are working daily on it to improve it. And Pharo is not a product so it means that you can also enhance it, modify it to fit your need. > -- > M Patrick GELIN > 78 rue du Truchay > 38690 BELMONT > <patrick_gelin.vcf> -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020

Re: [Pharo-users] Class side vs instance side (variables and methods)

by tbrunz

Shouldn't this code > So if you implement a #newWhite method in the "class side" of Dog, it > would be something like this. > > Dog class>>newWhite > "Returns a new white instance of receiver." > ^self new color: Color white be this instead? > Dog class>>newWhite > "Returns a new white instance of receiver." > ^self new > color: Color white; > yourself in order to return the new Dog instance? Otherwise it will return the Dog class itself (not what you expected? -t -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 2, 2020

Re: [Pharo-users] A question concerning Nautilus

by StÃ©phane Ducasse

Thanks I will check PBE8 S. > On 14 Jul 2020, at 03:58, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: > > Hi RenÃ©, > > use instead: > > ClyFullBrowser openOnMethod: Integer >> #factorial > > Book should be updated for Pharo 8 :-) > Regards, > > On Mon, Jul 13, 2020 at 10:42 PM Rene Paul Mages (ramix) <pharo(a)rmages.com <mailto:pharo@rmages.com>> wrote: > Hello, > > In the chapter 2 ( A quick tour of Pharo ) of this book : > > https://github.com/SquareBracketAssociates/UpdatedPharoByExample <https://github.com/SquareBracketAssociates/UpdatedPharoByExample> > > we can read : > > http://ramix.org/pharo/UpdatePBE/TheSystemBrowser.png <http://ramix.org/pharo/UpdatePBE/TheSystemBrowser.png> > > When I "do it" the following code Nautilus don't open on the method > factorial : > > http://ramix.org/pharo/UpdatePBE/Nautilus.png <http://ramix.org/pharo/UpdatePBE/Nautilus.png> > > I am running Pharo version 8.0. under a 64 bits Linux machine. > > -- > Thanks for your help > Rene Paul Mages ( GnuPG_key 0x9840A6F7 ) > http://www.pharo.fr <http://www.pharo.fr/> > http://www.linux-azur.org/ramix <http://www.linux-azur.org/ramix> > http://twitter.com/RenePaulMages <http://twitter.com/RenePaulMages> > > > > > > > -- > Serge Stinckwicâhâ > https://twitter.com/SergeStinckwich <https://twitter.com/SergeStinckwich> > â -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020

Re: [Pharo-users] Smalltalkhub delete date

by StÃ©phane Ducasse

Hi Paul I could not really understand what you mean since we will not delete anything. Just make the archive readonly. We planned to have SmalltalkHub turn into a file server around november https://pharoweekly.wordpress.com/2020/04/03/smalltalkhub-deprecation-notic… S. > On 10 Jul 2020, at 16:37, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > Hi > > Would someone please add the date you're going to delete smalltalkhub to every page on Smalltalkhub? > > Thanks > > Paul > > -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020

Re: [Pharo-users] Class side vs instance side (variables and methods)

by StÃ©phane Ducasse

Hello patrick Welcome > > Subject: Class side vs instance side (variables and methods) > Date: 29 July 2020 at 01:34:22 CEST > To: Any Question About Pharo Is Welcome <pharo-users(a)lists.pharo.org> > > > Being new not only to Smalltalk, but OOP in general, I think I finally am understanding things. Did you read my learning OOP book? It does not contain the answer but â¦ > One area I am still unsure about is the class side versus the instance side. Does one usually use the class side when they want those inherited in every subclass, which frees one from having to declare them in every instance? No Class side instances are - to share state among all instances (including subinstances) - state for classes. You have classVariables (should be renamed sharedVariables) and this is different from class instance variables (which are just instance variables of classes and since classes are kind of global you can use also to have act as shared variables). The difference being that there is only one classVar(sharedVariable) per hierarchy while you have one class instance variable per class. S.

Aug. 2, 2020

Re: [Pharo-users] Extract-method refactoring erratic behavior in Pharo 8

by tbrunz

> the problem is that right now we can write tests for UI and we try hard to do it but > as soon as we have a pop up we do not have yet a way to capture this > interaction. > We were discussing about it and got it by the covid. So many things have been impacted by COVID. Now we have new ways of working. >> Is there a way to emulate a GUI user and the actions of mouse moves & >> clicks >> (as well as keypresses)? > Yes. > You can have a look at Spec20 tests I guess it's time for me to dive into Spec2... I want to add a Spec2 UI to my Zebra Puzzle tutorial. That certainly will require UI tests, too. >> And to capture the results of pointing, clicking, >> right-click menu selections, etc? >> >> Is there a UI testing framework for Pharo that includes this? If not, >> should we start building one? > We are missing a way to model pop up and more. That sounds like the first step, then... -t -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 2, 2020

Re: [Pharo-users] Intermediate-Level Tutorials for Pharo

by StÃ©phane Ducasse

> On 2 Aug 2020, at 15:33, Russ Whaley <whaley.russ(a)gmail.com> wrote: > > EXACTLY!, StÃ©phane, thank you! I will go through this tutorial today. > > Has anyone written any documentation or maybe a tool that would help understand what each âwidgetâ is capable of? I review all example code, read all class comments and peruse the class hierarchy, but when a widget capability doesnât work for me, I donât know whether Iâm using it incorrectly, in the wrong place, or if itâs a bug.. I.e filter/sort, TransmitTo:, drag and drop, double-click, right-click, presenter management (modal, etc), and how to force the display to refresh, etc. Your thoughts? Same feeling for me. This is why I would like - to have the time to propose a way to mark API elements so that we can build a little tools to show the API of each widget We did this in Spec1 and it supported the auto documentation of the system. - to have better method comments, and class comments. - that esteban write more doc. I decided that I will not write anything before (because Iâm TIRED to learn by try and error to be able to write documentation). I will never do that again. It is not fun and I prefer to focus on my stupid projects because I know them. So if you want to help me. Ask for them :) > I appreciate (and admire) all the work you and everyone put into the documentation and tutorials - and I am voracious in consuming them. Thanks! > I hope to build my skills to be able to contribute for the community. If you find typos or strange english let us know. Because this is already a contribution > > Thanks! > Russ > > On Sun, Aug 2, 2020 at 5:07 AM StÃ©phane Ducasse <stephane.ducasse(a)inria.fr <mailto:stephane.ducasse@inria.fr>> wrote: > > >> On 29 Jul 2020, at 05:06, Russ Whaley <whaley.russ(a)gmail.com <mailto:whaley.russ@gmail.com>> wrote: >> >> Back on the 'Intermediate Tutorials' question... >> >> I would love to see intermediate tutorials on Spec2 and Seaside.... and perhaps how to best adapt an (Sp)Application to serve both 'presenters' with guidelines on what responsibility goes where on the presenter/component, application, and model(s). > > Agreed. > Now for the seaside tutorials please ask seasiders because what is killing me is to have to deeply learning something before writing > may be one person can write some blog posts. > > For Spec2 we will but Iâm waiting for esteban to write and I do a pass after. > >> What I found most useful in tutorials is specific examples. To me, generic examples can be too easily misunderstood - making them difficult to (re)apply. A specific example, even if silly, can really make a differenceâ¦ > > Yes! > Did you see > > https://github.com/Ducasse/smalltodo-example/blob/master/SmallTODO-Tutorial… <https://github.com/Ducasse/smalltodo-example/blob/master/SmallTODO-Tutorial…> > > >> i.e. I'm never going to create a GUI based on the Class/method hierarchy and I find it very difficult to apply those examples (although they are slick) to my application needs. >> >> I love looking at how other people approach problems, identify solutions (I can't wait to dig into the logic-puzzle code). This mailing list is great, but more - and more advanced - tutorials would be very much appreciated! >> >> Thanks! >> Russ >> >> >> On Mon, Jul 27, 2020 at 11:45 PM tbrunz <wild.ideas(a)gmail.com <mailto:wild.ideas@gmail.com>> wrote: >> So I decided to write an application to solve the Zebra Puzzle, by solving >> this type of problem in general. In Pharo, of course. >> >> I worked out a few basic algorithms for making deductions and inferences, >> and coded them, along with tests, in Pharo 8. Now I've reached the point of >> having a working "proof of concept" or prototype. It can't (yet) solve the >> Zebra Puzzle without some "human assistance", but it does keep track of the >> solution state as it progresses, it handles the bookkeeping, makes the basic >> deductions/inferences, and produces reports. >> >> And I've used it to quickly solve the Zebra Puzzle. I coded the solution as >> a separate class/method, with extra rules inserted that I was able to infer >> by iterating to partial solutions, so that it solves the entire thing. It >> will interesting to develop the remaining algorithms, and it would be nice >> to eventually create a nice, interactive user interface for it as well. >> >> Since I want to fashion this into an intermediate-level tutorial, I need >> feedback on what I have so far. I don't want my inexperience to lead to me >> teaching the wrong techniques, etc. to other developers who are learning >> Pharo. What I have can no doubt be improved, but I need to hear from the >> master craftsman in this community what parts are compromised and how (and >> why) it can be made a better example of "how to program in Pharo" properly. >> >> If anyone has the time and is willing to help, the code (complete with class >> & method comments, test classes/methods, and the Zebra Puzzle example) is >> here: >> https://github.com/tbrunz/logic-puzzle <https://github.com/tbrunz/logic-puzzle> and I'm available to answer questions >> about it, of course. >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html <http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html> >> >> >> >> -- >> Russ Whaley >> whaley.russ(a)gmail.com <mailto:whaley.russ@gmail.com> > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr <http://stephane.ducasse.free.fr/> / http://www.pharo.org <http://www.pharo.org/> > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley <https://www.google.com/maps/search/40,+avenue+Halley?entry=gmail&source=g>, > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France > > -- > Russ Whaley > whaley.russ(a)gmail.com <mailto:whaley.russ@gmail.com> -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020