November 2010 - Pharo-users

Code Organization: story boarding
by James Ashley Nov. 7, 2010

Nov. 7, 2010

This is a problem I haven't ever been able to even really even been able to contemplate expressing in another language. Yet again, my apologies if this is the wrong forum for such a discussion. I'd like to be able to write a program that allows me to plot out a "story board" for a series of books. The details are pretty nebulous at this point. I'm imagining a series of classes that include things like a TimeLine, Characters, Map, and Scenes. It seems to me that each Scene would need some sort of instance of each Character--his/her outfit, etc. Now, assuming I were some sort of amazingly prolific writer, it seems like I'd wind up with a huge collection of Packages to wander through. Especially if I started trying to mix and match characters. "For this book, I'd like to use Santa Claus *and* the Easter Bunny"...characters I created for earlier books that belonged separate packages, back then. And probably will again, for my next book. I'm actually thinking of a website that allows authors to set up story-boarding scenarios. Which would mean creating class hierarchies like this behind the scenes. Making RDBMS entries works, sort of, but that just doesn't really cut the mustard. What's the idiomatic way to handle something like this? (Yes, it's all theoretical...I'm a lousy fiction writer). Multiple images, importing the bits and pieces that make sense for a given project? Thanks, James

1 0

Re: [Pharo-users] Another Halo Question (complete newbie)
by StÃ©phane Ducasse Nov. 6, 2010

Nov. 6, 2010

On Nov 3, 2010, at 12:33 PM, James Ashley wrote: > On Sat, Oct 30, 2010 at 5:13 AM, StÃ©phane Ducasse > <stephane.ducasse(a)inria.fr> wrote: >> >> On Oct 30, 2010, at 3:04 AM, James Ashley wrote: >> >>> >>> I've read the documents about getting halos activated in the first >>> place. I'm on linux, where alt-shift middle-click (I'm still trying to >>> get the button colors down) generally works. >>> >>> In the lights out sample, it doesn't. I can ctrl-shift "left" click, >>> get a giant menu, and select "Add Halo." That puts a halo around the >>> individual cell. If I close it, it disappears and shows a blue >>> background (which I'm starting to suspect is a default for >>> morphics...is that close?). >> >> Strange I do not get it. >> normally the halso should be displayed when you click and option shift (but I'm >> on mac) > > I'm starting to think this may be some sort of bug with the linux > version. I get the impression that the Squeak developers were heavily > tilted toward linux. not really since we were a lot of squeakers moving to pharo and on mac. > Is the same true of Pharo? > > Thank you, > James > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

2 1

Is there an "official" Glorp project/package?
by T. Edwin King Nov. 5, 2010

Nov. 5, 2010

Forgive me if this is the incorrect forum for Glorp, but I'm interested in Pharo and not Squeak. It seems that there are multiple projects around for Glorp (on Squeaksource), and there appears to be differences in what is available (particularly Ramon Leon's MagritteGlorp/GlorpSeaside and ActiveRecord). So is there an "official" Glorp project (I use the term loosely)? I have succeeded in getting ConfigurationOfGlorpDBX 1.3 up and running in a Pharo 1.1.1 image with CogVM, against PostgreSQL and Sqlite3, on MacOS X in 64-bit kernel mode no less. And the GlorpTests mostly run except for 8 or 9. But I don't see the same packages/classes as those that are available in the Glorp project. Regards, TEK -- View this message in context: http://forum.world.st/Is-there-an-official-Glorp-project-package-tp3027707p… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 3

Re: [Pharo-users] Is there an "official" Glorp project/package?
by StÃ©phane Ducasse Nov. 4, 2010

Nov. 4, 2010

> Forgive me if this is the incorrect forum for Glorp, this is not! This is the right place to ask such question. > but I'm interested in > Pharo and not Squeak. > > It seems that there are multiple projects around for Glorp (on > Squeaksource), and there appears to be differences in what is available > (particularly Ramon Leon's MagritteGlorp/GlorpSeaside and ActiveRecord). > > So is there an "official" Glorp project (I use the term loosely)? I will let other comment. > I have succeeded in getting ConfigurationOfGlorpDBX 1.3 up and running in a > Pharo 1.1.1 image with CogVM, against PostgreSQL and Sqlite3, on MacOS X in > 64-bit kernel mode no less. And the GlorpTests mostly run except for 8 or > 9. good to know. > But I don't see the same packages/classes as those that are available in > the Glorp project. > > Regards, > TEK > -- > View this message in context: http://forum.world.st/Is-there-an-official-Glorp-project-package-tp3027707p… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

1 0

RoarVM: The Manycore SqueakVM
by Stefan Marr Nov. 3, 2010

Nov. 3, 2010

Dear Smalltalk community: We are happy to announce, now officially, RoarVM: the first single-image manycore virtual machine for Smalltalk. The RoarVM supports the parallel execution of Smalltalk programs on x86 compatible multicore systems and Tilera TILE64-based manycore systems. It is tested with standard Squeak 4.1 closure-enabled images, and with a stripped down version of a MVC-based Squeak 3.7 image. Support for Pharo 1.2 is currently limited to 1 core, but we are working on it. A small teaser: 1 core 66286897 bytecodes/sec; 2910474 sends/sec 8 cores 470588235 bytecodes/sec; 19825677 sends/sec RoarVM is based on the work of David Ungar and Sam S. Adams at IBM Research. The port to x86 multicore systems was done by me. They open-sourced their VM, formerly know as Renaissance VM (RVM), under the Eclipse Public License [1]. Official announcement of the IBM source code release: http://soft.vub.ac.be/~smarr/rvm-open-source-release/ The source code of the RoarVM has been released as open source to enable the Smalltalk community to evaluate the ideas and possibly integrate them into existing systems. So, the RoarVM is meant to experiment with Smalltalk systems on multi- and manycore machines. The open source project, and downloads can also be found on GitHub: http://github.com/smarr/RoarVM http://github.com/smarr/RoarVM/downloads For more detailed information, please refer to the README file[3]. Instructions to compile the RoarVM on Linux and OS X can be found at [4]. Windows is currently not supported, however, there are good chances that it will work with cygwin or pthreads for win32, but that has not be verified in anyway. If you feel brave, please give it a shot and report back. If the community does not object, we would like to occupy the vm-dev(a)lists.squeakfoundation.org mailinglist for related discussions. So, if you run into any trouble while experimenting with the RoarVM, do not hesitate to report any problems and ask any questions. You can also follow us on Twitter @roarvm [5]. Best regards Stefan Marr [1] http://www.eclipse.org/legal/epl-v10.html [2] http://soft.vub.ac.be/~smarr/rvm-open-source-release/ [3] http://github.com/smarr/RoarVM/blob/master/README.rst [4] http://github.com/smarr/RoarVM/blob/master/INSTALL.rst [5] http://twitter.com/roarvm -- Stefan Marr Software Languages Lab Vrije Universiteit Brussel Pleinlaan 2 / B-1050 Brussels / Belgium http://soft.vub.ac.be/~smarr Phone: +32 2 629 2974 Fax: +32 2 629 3525

1 0

Another Halo Question (complete newbie)
by James Ashley Nov. 3, 2010

Nov. 3, 2010

How-dee! I'm working my way through PBE (no, I've been too broke lately to buy a copy yet *blush*, but I will) and a few other smalltalk tutorials. I've read the documents about getting halos activated in the first place. I'm on linux, where alt-shift middle-click (I'm still trying to get the button colors down) generally works. In the lights out sample, it doesn't. I can ctrl-shift "left" click, get a giant menu, and select "Add Halo." That puts a halo around the individual cell. If I close it, it disappears and shows a blue background (which I'm starting to suspect is a default for morphics...is that close?). If I jump back through the "Add Halo" hoops on that background, or actually manage to click on the border, I just get what seems to be halos for the desktop (system? background? It's always frustrating to start learning a new system and not know the terminology...then again, that's part of the fun). I've been able to close the morphic by adding a "self owner delete" mouse down handler to the cells, then commenting it out until I need it. But it's more than a little painful. I spent about two hours today googling for variations on "morphics decorated frames", but the results I got suggested that I'm not even in the ballpark. I'm sorry if I missed an FAQ or didn't dig far enough back in the mailing list archives. Thanks in advance, James

3 4

Re: [Pharo-users] Another Halo Question (complete newbie)
by StÃ©phane Ducasse Nov. 3, 2010

Nov. 3, 2010

On Oct 30, 2010, at 3:04 AM, James Ashley wrote: > How-dee! > > I'm working my way through PBE (no, I've been too broke lately to buy > a copy yet *blush*, but I will) and a few other smalltalk tutorials. there is no problem. The pdfs version is for that :) > > I've read the documents about getting halos activated in the first > place. I'm on linux, where alt-shift middle-click (I'm still trying to > get the button colors down) generally works. > > In the lights out sample, it doesn't. I can ctrl-shift "left" click, > get a giant menu, and select "Add Halo." That puts a halo around the > individual cell. If I close it, it disappears and shows a blue > background (which I'm starting to suspect is a default for > morphics...is that close?). Strange I do not get it. normally the halso should be displayed when you click and option shift (but I'm on mac) > > If I jump back through the "Add Halo" hoops on that background, or > actually manage to click on the border, I just get what seems to be > halos for the desktop (system? background? It's always frustrating to > start learning a new system and not know the terminology...then again, > that's part of the fun). > > I've been able to close the morphic by adding a "self owner delete" > mouse down handler to the cells, then commenting it out until I need > it. But it's more than a little painful. > > I spent about two hours today googling for variations on "morphics > decorated frames", but the results I got suggested that I'm not even > in the ballpark. > > I'm sorry if I missed an FAQ or didn't dig far enough back in the > mailing list archives. > > Thanks in advance, > James > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

2 1

Fwd: [Newbies] Problems running Pharo
by Sven Van Caekenberghe Nov. 3, 2010

Nov. 3, 2010

This seems to have ended up on the wrong list, maybe somebody can help him... Begin forwarded message: > From: Douglas Naka <douglaseiji(a)yahoo.com.br> > Date: 2 Nov 2010 19:40:59 GMT+01:00 > To: squeak mailing <beginners(a)lists.squeakfoundation.org> > Subject: [Newbies] Problems running Pharo > Reply-To: "A friendly place to get answers to even the most basic questions about Squeak." <beginners(a)lists.squeakfoundation.org> > > > Hi everybody, > > I am having problems when executing the vm using the latin1 encoding. I am running it on Ubuntu 10.10. Aways when I open the file browser and I get this error: invalid utf8 input detected. > > -encoding latin1 > > But this error happens only in this OS. > I have tested it in Ubuntu 10.04 LTS and I don't get this error. Does anyone can help me, please? > > Thanks > Naka > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners

1 0

Nov. 3, 2010

Strange is ti on long text? or even on small methods? On Nov 3, 2010, at 2:52 AM, Jeff Gray wrote: > > Thanks Stef. > > I'm running Pharo-1.1-11411 > > The symptom is when I press the keyboard arrows I get the delay. > Eg If perhaps 3 options pop up and I immediately press down arrow once and > enter key then, after a long delay, the 2nd item in the list is used as > expected. > -- > View this message in context: http://forum.world.st/Minimum-spec-tp3022984p3024757.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

4 3

Nov. 3, 2010

I removed that in pharo since it was a hack working only on squeak and not even well because what happens if I do an alias to self obj := self. obj pvt.... or with passing a ref to me around and client invoke the method. aA foo: self A>>foo: aA aA pvt For people that want to read a nice paper on private methods I suggest: Encapsulation in a dynamic language by nathanael scharly => only self send (using self keywords could be potential private call) I like the idea and the reasoning behind. and freezable traits to a certain extent Stef > > Hi > > Am 2010-11-02 um 10:24 schrieb eMko: >> There is a convention of naming private methods - instead of naming it just >> "methodName" you can use "myMethodName". >> >> I have seen this convention in some tutorials at squeak wiki but have not >> seen a system class in squeak or pharo which uses this. But I do in my >> programs. A different naming convention of private/protected methods is >> quite common in other programming or scripting languages like Perl, Python, >> PHP ... > > Incidentally, if you name your method "pvtMethodName" it is expected that > this message is only sent to self. > > So if you have a class > "--" > Object subclass: #Foobar > instanceVariableNames: '' > classVariableNames: '' > poolDictionaries: '' > category: 'TMP' > "--" > > with > Foobar>>pvtTest > > Transcript show: 'Foobar'. > > and then do > > | a | > a := Foobar new. > a pvtTest. > > you'll end up with the Compiler telling you > that âPrivate messages may only be sent to selfâ. > > However, according to Smalltalk conventions, you should > use these âprivateâ methods scarcely. In fact, it is easy to > circumvent this check: > > | a | > a := Foobar new. > a perform: #pvtTest a Foobar > > works easily, so don't rely on the privateness. However, > whatever one sends to your object is up to her/him and > she/he is responsible for the outcome ;) > > HTH > > So Long, > -Tobias > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

2 1