- Pharo-users - lists.pharo.org

Pharocasts: the LightsOut game

by laurent laffont

Hi, new screencast: Follow the Lights Out game exercise from the book Pharo By Example. http://www.pharocasts.com/2010/11/lightsout-game.html Don't miss the SmalltalkLabs browser for blogs :) Laurent Laffont Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

Nov. 2, 2010

Re: [Pharo-users] Private methods

by Tobias Pape

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

Nov. 2, 2010

Re: [Pharo-users] Private methods

by 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 ... -- View this message in context: http://forum.world.st/Private-methods-tp3022981p3023395.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 2, 2010

Re: [Pharo-users] Private methods

by Alan Rodas

Private methods don't exist in Smalltalk. Every method is exposed as public, and anyone can call it, from anywhere. As you can select a protocol for your methods to arrange them under a name or category, you may use the "private" category. This indicates to the users that a method is private, and should not be called from outside the class. As oposite, every instance variable is protected, and it can be seen just from the class and its subclases. If you want to expose a variable, you need to create accessors. Hope this helps you. C Ya -- Alan Rodas Bonjour

Nov. 1, 2010

Minimum spec

by Jeff Gray

I run Pharo on Win7 on a netbook and it works well. The only issue I have is the "intellisense". When I start typing a message it offers me some options in a list. To select anything but the first in the list takes upwards of 15 seconds. No biggy and I can certainly work round it. Is there a minimum spec for Pharo? -- View this message in context: http://forum.world.st/Minimum-spec-tp3022984p3022984.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 1, 2010

Private methods

by Jeff Gray

Coming from doing a lot of java and C#, a lot of my classes' internal processing would be done with private methods. Is there a similar mechanism in smalltalk? I suspect I may be thinking about this all wrong :-) -- View this message in context: http://forum.world.st/Private-methods-tp3022981p3022981.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 1, 2010

Re: [Pharo-users] Another Halo Question (complete newbie)

by laurent laffont

To close all the games opened you can evaluate: LOGame allInstances do: [:i | i delete]. I'm currently working on a screencast for the LightsOut exercise in PBE. Should be out in a couple of days. Cheers, Laurent Laffont Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/ On Sun, Oct 31, 2010 at 4:04 AM, Daniel Klein <danielk(a)danielk.us> wrote: > I'm going through the book too. If your problem is that you can't close the > game then here's how... First, get halos around the upper-left cell and > close it; it should turn blue. Then get halos around the cell that turned > blue (which should be labeled 'LOGame') and then you can close the game. > Hope that helps, Dan > ------------------------------ > View this message in context: Re: Another Halo Question (complete newbie)<http://forum.world.st/Another-Halo-Question-complete-newbie-tp3019925p30208…> > Sent from the Pharo Smalltalk Users mailing list archive<http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html>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 > >

Oct. 31, 2010

Re: [Pharo-users] Another Halo Question (complete newbie)

by Daniel Klein

I'm going through the book too. If your problem is that you can't close the game then here's how... First, get halos around the upper-left cell and close it; it should turn blue. Then get halos around the cell that turned blue (which should be labeled 'LOGame') and then you can close the game. Hope that helps, Dan -- View this message in context: http://forum.world.st/Another-Halo-Question-complete-newbie-tp3019925p30208… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Oct. 31, 2010

Re: [Pharo-users] How to detect an inactive image?

by Michael Roberts

I guess you would need a way to sample a set of processes that were executing what you considered activity; and ignore the ones that are not. With some data, e.g assuming they block on semaphore when idle, or terminate when idle, perhaps you can make a decision. I haven't looked, but was imagining some of the profiler framework might help because I thought it did process sampling. cheers, Mike On Sat, Oct 30, 2010 at 11:10 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > IF you get some answers I;'m interested to know it because we are thinking about what is a VM API to monitor them. > > >> At the moment I have several projects in parallel. Nearly all of them are web based. I use a cherokee server on my local machine that starts a squeak image whenever I access a project via web browser. For persistency I use piers image based persistency. But I don't want to have all of the images run all the time. I would like to shutdown images if they aren't accessed for some time. >> I could do it via seaside but then I don't want an image to shutdown while I'm working on the image and not accessing seaside. What is a good measure of activity inside the image? >> >> thanks, >> >> Norbert >> >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >

Oct. 30, 2010

Re: [Pharo-users] Another Halo Question (complete newbie)

by StÃ©phane Ducasse

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

Oct. 30, 2010