September 2014 - Pharo-users

Re: [Pharo-users] Hello ...

by kilon alios

I have posted a series of video tutorial for Pharo and in some of them I explain the basics of OO with practical examples https://www.youtube.com/playlist?list=PLqbtQ7OkSta0ULYAd7Qdxof851ybh-_m_ if you throw also PBE I think you pretty much covered. OO is not really a difficult concept, an object is just a collection of variables and methods and then it builds complexity from there. But if you already so familiar with Squeak that should come as riding a bike, you cant forget these things. So I am sure you will remember it quickly when you try your your own experiments. By the way welcome to Pharo and keep us posted with your progress . Peronally I love Squeak is hands down the most elegant GUI system I have used, but I use Pharo because its more actively developed and better in the things that interest me. On Fri, Sep 5, 2014 at 8:09 PM, S Krish <krishnamachari.sudhakar(a)gmail.com> wrote: > > Welcome to the Smalltalk world.. > > You would have already seen: > > http://pharo.org/documentation in particular: > http://pharobyexample.org/ > > In Pharo Start with the Pharo Tutorials through ( Left Click on the World, > Help >> Pharo Tutorials ) > > Watch the screencasts.. in the documentation page.. > > Probably relevant will be Web application development with Seaside > framework in Pharo Smalltalk: > http://book.seaside.st/book > > Rest will fall into place once you sink yourself in, and ask questions > relevant to where you are wanting to head to.. > > > > > > On Fri, Sep 5, 2014 at 10:29 PM, Mayuresh Kathe <mayuresh(a)kathe.in> wrote: > >> A hello to Pharo-Users list members. >> >> I am Mayuresh Kathe from Mumbai, India. >> >> I used to work with Squeak a while (14 years) back, but ever since I had >> to move over to non-OOP environments, and never did get to work with >> Smalltalk or alike systems ever since. >> >> To add to that, I haven't been programming for over 7 years due to being >> pushed into the management track. >> I have quit the management world, and along with it a regular job. >> >> Am now a consultant, mostly to Web startups which leaves me with a lot of >> spare time to tinker around with what I would really like to. >> >> After a lot of searching and experimenting, I finally landed in Pharo >> land, and things look good. :) >> >> Given the fact that I haven't written a single fully functional program >> in 7 years, I feel like I've lost the ability to code, sort-a rusty. >> >> Would the list members be kind enough to suggest a book I could work >> through to warm myself up to OOP? >> I stumbled upon "The Object Oriented Thought Process" by Matt Weisfeld, >> looks good, but if there's anything better suited to Pharo, would be nice >> to know. >> >> Thanks, >> >> ~Mayuresh >> >> >> >

Sept. 5, 2014

Re: [Pharo-users] Hello ...

by Mayuresh Kathe

Thanks for the welcome note. :) I am quite certain that I want to head in a direction away from Web application development using Pharo. I see in Pharo the promise that was left unhonoured by Squeak, one of having an elegant system instead of a quilt. The Pharo UI looks better than any of the ones in the Squeak world, though, I believe Pharo's LnF can be taken to a whole new level, and that's what I intend to work on once I've gained enough command over the environment and the programming language. Best, ~Mayuresh On 2014-09-05 22:39, S Krish wrote: > Welcome to the Smalltalk world.. > > You would have already seen: > > http://pharo.org/documentation [1]Â Â in particular:Â Â > http://pharobyexample.org/ [2]Â Â > > In Pharo Start with the Pharo Tutorials through ( Left Click on the > World, Help >> Pharo Tutorials ) > > Watch the screencasts..Â in the documentation page.. > > Probably relevant will be Web application development with Seaside > framework in Pharo Smalltalk: > > http://book.seaside.st/book [3] > > Rest will fall into place once you sink yourself in, and ask questions > relevant to where you are wanting to head to.. > > On Fri, Sep 5, 2014 at 10:29 PM, Mayuresh Kathe <mayuresh(a)kathe.in> > wrote: > >> A hello to Pharo-Users list members. >> >> I am Mayuresh Kathe from Mumbai, India. >> >> I used to work with Squeak a while (14 years) back, but ever since >> I had to move over to non-OOP environments, and never did get to >> work with Smalltalk or alike systems ever since. >> >> To add to that, I haven't been programming for over 7 years due to >> being pushed into the management track. >> I have quit the management world, and along with it a regular job. >> >> Am now a consultant, mostly to Web startups which leaves me with a >> lot of spare time to tinker around with what I would really like to. >> >> After a lot of searching and experimenting, I finally landed in >> Pharo land, and things look good. :) >> >> Given the fact that I haven't written a single fully functional >> program in 7 years, I feel like I've lost the ability to code, >> sort-a rusty. >> >> Would the list members be kind enough to suggest a book I could >> work through to warm myself up to OOP? >> I stumbled upon "The Object Oriented Thought Process" by Matt >> Weisfeld, looks good, but if there's anything better suited to >> Pharo, would be nice to know. >> >> Thanks, >> >> ~Mayuresh

Sept. 5, 2014

Re: [Pharo-users] Hello ...

by S Krish

Welcome to the Smalltalk world.. You would have already seen: http://pharo.org/documentation in particular: http://pharobyexample.org/ In Pharo Start with the Pharo Tutorials through ( Left Click on the World, Help >> Pharo Tutorials ) Watch the screencasts.. in the documentation page.. Probably relevant will be Web application development with Seaside framework in Pharo Smalltalk: http://book.seaside.st/book Rest will fall into place once you sink yourself in, and ask questions relevant to where you are wanting to head to.. On Fri, Sep 5, 2014 at 10:29 PM, Mayuresh Kathe <mayuresh(a)kathe.in> wrote: > A hello to Pharo-Users list members. > > I am Mayuresh Kathe from Mumbai, India. > > I used to work with Squeak a while (14 years) back, but ever since I had > to move over to non-OOP environments, and never did get to work with > Smalltalk or alike systems ever since. > > To add to that, I haven't been programming for over 7 years due to being > pushed into the management track. > I have quit the management world, and along with it a regular job. > > Am now a consultant, mostly to Web startups which leaves me with a lot of > spare time to tinker around with what I would really like to. > > After a lot of searching and experimenting, I finally landed in Pharo > land, and things look good. :) > > Given the fact that I haven't written a single fully functional program in > 7 years, I feel like I've lost the ability to code, sort-a rusty. > > Would the list members be kind enough to suggest a book I could work > through to warm myself up to OOP? > I stumbled upon "The Object Oriented Thought Process" by Matt Weisfeld, > looks good, but if there's anything better suited to Pharo, would be nice > to know. > > Thanks, > > ~Mayuresh > > >

Sept. 5, 2014

Hello ...

by Mayuresh Kathe

A hello to Pharo-Users list members. I am Mayuresh Kathe from Mumbai, India. I used to work with Squeak a while (14 years) back, but ever since I had to move over to non-OOP environments, and never did get to work with Smalltalk or alike systems ever since. To add to that, I haven't been programming for over 7 years due to being pushed into the management track. I have quit the management world, and along with it a regular job. Am now a consultant, mostly to Web startups which leaves me with a lot of spare time to tinker around with what I would really like to. After a lot of searching and experimenting, I finally landed in Pharo land, and things look good. :) Given the fact that I haven't written a single fully functional program in 7 years, I feel like I've lost the ability to code, sort-a rusty. Would the list members be kind enough to suggest a book I could work through to warm myself up to OOP? I stumbled upon "The Object Oriented Thought Process" by Matt Weisfeld, looks good, but if there's anything better suited to Pharo, would be nice to know. Thanks, ~Mayuresh

Sept. 5, 2014

Re: [Pharo-users] Tide installation

by Bernat Romagosa

The slides are cool, but I really don't quite understand how Tide works... I tried to reproduce the Hero example, but when asking my lair for heroes (from the client side) I got: TDClient >> promiseNotFound: > No promise was found for selector heroes It'd be great if someone wrote a getting started tutorial, a simple ToDo would be more than enough. Marina is way too complex to grasp how the framework works, and the counter example is way too simple. I'd do it myself, but of course I don't know the first thing about Tide! :P 2014-09-04 9:37 GMT+02:00 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com>: > Pull request sent. > > Phill, you need to use the latest bower. I'd uninstall and reinstall again: > > $ npm uninstall bower > $ npm install bower -g > > Then just follow the tutorial, you don't need to modify bower.json or > anything. > > Stef, thanks! I'll check these slides. > > Cheers, > Bernat. > > > 2014-09-03 16:50 GMT+02:00 phil(a)highoctane.be <phil(a)highoctane.be>: > > I tried to get this working. >> >> bower installed >> Tide loaded as per the slides (with some fiddling as what is there >> doesn't work). >> >> Then TDDispatcher tideIndexPageUrl inspect gives >> >> http://localhost:7777/tide/tide/index.html >> >> (Why that 'tide' twice in there?) >> >> And there, no helios or anything. >> >> But that may be because I used the wrong bower 1.2.6 version and set >> stable for Amber as the commit number didn't work. >> >> So, Bernat, which bower and which amber in bower.json ? >> >> TIA >> Phil >> â >> > > > > -- > Bernat Romagosa. > -- Bernat Romagosa.

Sept. 5, 2014

Re: [Pharo-users] Pharo Glorp 1.7 <-> VisualWorks

by jtuchel＠objektfabrik.de

Esteban, Am 05.09.14 um 15:36 schrieb Esteban A. Maringolo: > Hi, > > 2014-09-05 3:53 GMT-03:00 jtuchel(a)objektfabrik.de <jtuchel(a)objektfabrik.de>: >> Esteban, >> I disagree ;-) >> Am 04.09.14 um 17:09 schrieb Esteban A. Maringolo: >>> 2014-09-04 11:18 GMT-03:00 FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com>: >>>> Where is the best place to ask about Glorp by the way? >>> I wonder the same. >>> The official discussion group is >>> https://groups.google.com/forum/#!forum/glorp-group >>> But it is not very active. >>> >>> So IMHO, for Pharo use this is the best place, and for VisualWorks its >>> own mailing list. >> I am a Glorp user, but not on Pharo, and I am very much interested in >> problems people might find or - more interestingly - solve with Glorp. > I forgot about you! even when I follow your blog. > You're the only person/project I know uses Glorp in VA. so assuming I am the only Glorp user on VA (I am not, btw.), your argument would mean I should rather ask on the VA mailing list where I will be even less likely to find answers, because there are no Glorp users there at all ;-) Not sure I like the idea ;-) And don't forget the VW(NC) users of Glorp. They might have problems with Glorp as well. >> From my experience with using Glorp on VA Smalltalk, it is sometimes very >> hard to tell if you have a general Glorp problem or some porting error in >> front of you. > Test coverage is pretty good, but I've been bitten by what you mention. > That's how I realized the port I'm using is outdated. > >> So I would say the primary group for Glorp questions should be >> the Glorp google group (see your link above). >> Another argument: if we followed your advice for every >> library/tool/framework, wouldn't this pollute the Pharo Mailing list? > I know, but I really don't know who reads Glorp mailing list, and > particularly *how often*. > > Francois asked about GLORP here and got a bunch of responses in a > couple of hours, had he asked the same in Glorp's mailing list and > probably would have got a "please ask in the Pharo mailing list about > its port" response. > And this is no critic to Alan nor anybody there, it's just a matter of > how active a mailing list is and how "foreign" Pharo's version is, > they simply don't know what Pharo has. > And, if I remember correctly, most answers on this list were of the kind that says "I think I know someone who heard about somebody who once did a Glorp port to Pharo, but I think it is dated". Do we expect Alan or Niall or Tim to read the Pharo mailing list to answer Glorp questions? I am not sure they'll like the idea. BTW: I thought tha VAST version is also foreign, but these days the port on VAST is pretty current and the feeling is gone. So, as long as I am not sure if a problem is a Glorp bug or one of my port, I think the Glorp list is the right place for it. I'd rather get input from Pharo, VisualWorks and VAST users than none or the kind I just mentioned - I am glad that Maarten, Alan and you (and others) are on the Glorp list - and we all use different dialects! Joachim > Regards! > > Esteban A. Maringolo > > -- ----------------------------------------------------------------------- Objektfabrik Joachim Tuchel mailto:jtuchel@objektfabrik.de Fliederweg 1 http://www.objektfabrik.de D-71640 Ludwigsburg http://joachimtuchel.wordpress.com Telefon: +49 7141 56 10 86 0 Fax: +49 7141 56 10 86 1

Sept. 5, 2014

Re: [Pharo-users] Pharo Glorp 1.7 <-> VisualWorks

by Esteban A. Maringolo

Hi, 2014-09-05 3:53 GMT-03:00 jtuchel(a)objektfabrik.de <jtuchel(a)objektfabrik.de>: > Esteban, > I disagree ;-) > Am 04.09.14 um 17:09 schrieb Esteban A. Maringolo: >> 2014-09-04 11:18 GMT-03:00 FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com>: >>> Where is the best place to ask about Glorp by the way? >> I wonder the same. >> The official discussion group is >> https://groups.google.com/forum/#!forum/glorp-group >> But it is not very active. >> >> So IMHO, for Pharo use this is the best place, and for VisualWorks its >> own mailing list. > I am a Glorp user, but not on Pharo, and I am very much interested in > problems people might find or - more interestingly - solve with Glorp. I forgot about you! even when I follow your blog. You're the only person/project I know uses Glorp in VA. > From my experience with using Glorp on VA Smalltalk, it is sometimes very > hard to tell if you have a general Glorp problem or some porting error in > front of you. Test coverage is pretty good, but I've been bitten by what you mention. That's how I realized the port I'm using is outdated. > So I would say the primary group for Glorp questions should be > the Glorp google group (see your link above). > Another argument: if we followed your advice for every > library/tool/framework, wouldn't this pollute the Pharo Mailing list? I know, but I really don't know who reads Glorp mailing list, and particularly *how often*. Francois asked about GLORP here and got a bunch of responses in a couple of hours, had he asked the same in Glorp's mailing list and probably would have got a "please ask in the Pharo mailing list about its port" response. And this is no critic to Alan nor anybody there, it's just a matter of how active a mailing list is and how "foreign" Pharo's version is, they simply don't know what Pharo has. Regards! Esteban A. Maringolo

Sept. 5, 2014

Re: [Pharo-users] [ANN] JSON datatype support in PostgresV2 package

by Esteban A. Maringolo

2014-09-05 4:18 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > > On 04 Sep 2014, at 21:43, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > >> Even though I don't use PharoExtras/JSON for my daily JSON >> manipulation (I use Seaside-JSON and NeoJSON), I found it to be the >> most "modular"/"independent" JSON package out there. > > I don't see how the JSON and NeoJSON package differ in that respect. NeoJSON has no dependencies. Could you explain this point ? My Bad, I didn't mean exactly that. When I wrote the above paragraph I thought NeoJSON required the specification of a schema and couldn't simply convert JSON strings to Dictionaries. The only thing I like about PharoExtras/JSON is the fact JsonObject allows its direct manipulation without having to use dictionary accessors, but still allowing for it (because JsonObject IS a Dictionary). We can perfectly replace it by NeoJSON. Mine was a proof of concept, which once I debugged through a lot types of PGPacket ended up being simpler than thought. Supporting parametrized statements with JSON is something I would like to check (I guess it is only text). Adding support to jsonb type is linear too on the client side, just replicate what I did for json. I did a quick benchmark comparing JSON parsers and NeoJSON gets slightly faster as the stream gets larger. I didn't profile them memorywise. 31bytes JSON: NeoJSON: 73,600 per second. JSON: 42,700 per second. WAJsonParser: 79,400 per second. 309bytes JSON: NeoJSON: 14,200 per second. JSON: 12,400 per second. WAJsonParser: 13,900 per second. 17215bytes JSON: NeoJSON: 277 per second. JSON: 194 per second. WAJsonParser: 255 per second. https://gist.github.com/eMaringolo/5e7c865188036faa7202#file-json-bench

Sept. 5, 2014

Re: [Pharo-users] How to create a red box with text in a big font?

by Thierry Goubier

2014-09-05 12:13 GMT+02:00 Tim Mackinnon <tim(a)testit.works>: > Thanks everyone for all your follow up messages - I've learned quite a lot > from such a simple question!!! > It was a pleasure to have a look and learn a bit more as well :) > > With regards to the #fontName:size: being not very useful - is that > something I should submit a fogbugz for (maybe there is one already there). > I'm thinking the Pharo way is to try and eliminate cruft where possible? > Yes. I'd say, looking at the code, we need to do two things: change the #fontName:size: method, and change the #emphasis: method so that it takes an emphasis object and not a code. Thierry > > Tim > > On 5 Sep 2014, at 10:37, Thierry Goubier <thierry.goubier(a)gmail.com> > wrote: > > Hi Peter, > > As far as I can understand, this is because TextStyle is brain dead code > when it comes to font selection (and fontName:size: is a useless API). > > (and now I can't write code in my Workspace in 4.0 because I get a DNU > from the styler for every key I type :( :( :( ) > > This code correctly select the font. > > Morph new > hResizing: #shrinkWrap; > addMorph: ( > 'Hello World' asMorph > font: (LogicalFont familyName: 'Source Sans Pro' pointSize: 110); > emphasis: TextEmphasis bold emphasisCode); > openInWindow; > color: Color red > > Thierry > > 2014-09-05 10:45 GMT+02:00 PBKResearch <peter(a)pbkresearch.co.uk>: > >> Hello >> >> >> >> I have played with this on Moose 5.0 (Pharo 3.0 update: #30854) on >> Windows 7 Pro. For me, it is necessary to include color:Color red after >> openInWindow to get the red background, as Thierry said. There is another >> puzzle, which is that the code does not respond in any linear way to >> changes in the font size. If you replace size: 75 with any number from 38 >> upwards, you get the same size of font. Change the size to 37 and there is >> a sharp reduction in size, and it changes in proportion for smaller >> numbers. Is there something different about this font? >> >> >> >> Peter Kenny >> >> >> >> >> >> *From:* Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] *On >> Behalf Of *Nicolai Hess >> *Sent:* 05 September 2014 08:19 >> *To:* Any question about pharo is welcome >> *Subject:* Re: [Pharo-users] How to create a red box with text in a big >> font? >> >> >> >> 2014-09-05 8:43 GMT+02:00 phil(a)highoctane.be <phil(a)highoctane.be>: >> >> Yes there is that annoying thing with windows that set things bacl to >> white. Why is that indeed? >> >> Phil >> >> >> >> >> >> I can not reproduce this with this code: >> Morph new >> color:Color red; >> hResizing: #shrinkWrap; >> addMorph: ( >> 'Hello World' asMorph >> fontName: 'Open Sans' size: 75; >> emphasis: TextEmphasis bold emphasisCode); >> openInWindow >> >> The Morph is red! >> >> >> >> >> >> >> Le 4 sept. 2014 23:32, "Thierry Goubier" <thierry.goubier(a)gmail.com> a >> Ã©crit : >> >> >> >> Le 04/09/2014 23:12, kilon alios a Ã©crit : >> >> but if I try to do openInWindow instead of openInWorld in the end it >> turns it to white box , why ? >> >> >> >> Adding the morph inside the window changes the morph color to white :( >> (What the heck?) >> >> If the color is changed after the openInWindow, then that works. >> >> Morph new >> hResizing: #shrinkWrap; >> addMorph: ( >> 'Hello World' asMorph >> fontName: 'Open Sans' size: 75; >> emphasis: TextEmphasis bold emphasisCode); >> openInWindow; >> color: Color red >> >> >> Thierry >> >> >> >> >> On Thu, Sep 4, 2014 at 11:56 PM, Thierry Goubier < >> thierry.goubier(a)gmail.com> wrote: >> >> Le 04/09/2014 18:18, Tim Mackinnon a Ã©crit : >> >> Cool - that's handy to know it works somewhere (and in fact, it was when >> playing with GT-Inspector I noticed this - so that solution would work). >> >> >> >> I'm still curious how you do it in Morphic? >> >> Like that: >> >> >> >> Morph new >> color: Color red; >> >> hResizing: #shrinkWrap; >> addMorph: ( >> 'Hello World' asMorph >> fontName: 'Open Sans' size: 75; >> emphasis: TextEmphasis bold emphasisCode); >> openInWorld >> >> Thierry >> >> >> >> >> >> Tim >> >> >> >> On 4 Sep 2014, at 17:10, Alexandre Bergel <alexandre.bergel(a)me.com> >> wrote: >> >> >> >> Using Roassal, I would do: >> >> -=-=-=-=-=-=-=-=-= >> >> v := RTView new. >> >> s := RTMultiCompositeShape new. >> >> s add: (RTBox new color: Color red; size: 500). >> >> s add: (RTLabel new height: 70). >> >> v add: (s elementOn: 'Hello World'). >> >> v open >> >> -=-=-=-=-=-=-=-=-= >> >> >> >> <Screen Shot 2014-09-04 at 12.10.14 PM.png> >> >> >> >> Cheers, >> >> Alexandre >> >> >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> On Sep 4, 2014, at 9:27 AM, Tim Mackinnon <tim(a)testit.works> wrote: >> >> >> >> Hi guys - I'm a bit stumped on how to create things in big text with a >> set background colour. I thought I understood - but it just doesn't seem to >> work. >> I was thinking I could create a container morph, set its background >> colour (which works), and then put a StringMorph inside it with a set font. >> This last bit I can't get to work - I can do bold, but not a bigger font >> size. I've tried different things but am missing the magic sauce - can >> someone spot my mistake? Below, I've tried using a font name that I can see >> in the Pharo settings dialog but it doesn't work? I also tried using >> LogicalFont with no success either. >> >> tMorph := StringMorph new. >> font1 := LogicalFont familyName: 'Arial' pointSize: 24. >> >> tMorph contents: 'Hello World'; >> fontName: 'Open Sans' size: 24; >> emphasis: TextEmphasis bold emphasisCode. >> >> bMorph := Morph new >> color: Color red; >> addMorph: tMorph. >> >> bMorph openInWorld. >> >> >> Tim >> >> >> >> >> >> >> >> >> >> >> >> >> > > >

Sept. 5, 2014

Re: [Pharo-users] Using Playground on Pharo 3.0

by Tudor Girba

You did not do anything wrong. At the moment, these entries do not exist in the menu. Doru On Fri, Sep 5, 2014 at 11:18 AM, PBKResearch <peter(a)pbkresearch.co.uk> wrote: > Hello > > > > I have been playing with Moose 5.0 (Pharo 3.0 update: #30854) on Windows 7 > Pro, trying to copy and paste code from e-mails in another thread. However, > if I open a Playground (which is what I get when I click âWorkspaceâ in the > World Menu), I find that the right click menu does not have any options for > copy or paste. The window responds to Ctrl-C and Ctrl-V as expected, so I > can get round it, but it is inconvenient. I have checked older versions > (e.g. Moose 4.9), and there the Workspace has a full right click menu. Did > I do something wrong in downloading Moose 5.0 (on 23 Aug 2014)? > > > > I am a beginner with Pharo, so any help would be appreciated. > > > > Peter Kenny > > > -- www.tudorgirba.com "Every thing has its own flow"

Sept. 5, 2014