July 2009 - Pharo-dev - lists.pharo.org

[Pharo-project] Halo lost in linux and others quirks
by jdinunci＠uc.edu.ve July 22, 2009

July 22, 2009

Hello, I'm new to smalltalk, I've been trying squeak for some time, and recently I discovered pharo, so I downloaded the files and started to play with it. The problems: *) Halos behave inconsistently: I can only activate halos in the world menus. If I middle-click in the workspace, the preference browser or any other window, they don't appear. *) Preference Browser -> Keyboard: If I deactivate duplicateAllControlAndAltKeys and duplicateControlAndAltKeys, no matter the state of swapControlAltKeys, actions like copy are always invoked by the alt key. *) If I use the window menu -> window color and *drag* the pointer over the palette, the system slows down and the mouse is captured by the palette for several seconds (the more time you drag, the more time you need to regain control). Where I'm tenting: @ work: Intel Core2 Duo, 2GB RAM, Ubuntu 9.10 64 bits @ home: Intel, 512MB RAM, Ubuntu 9.10 32 bits What I'm testing: set #1: pharo-vm-0.15.1b-linux, pharo0.1-10373web09.07.2.zip set #2: pharo-vm-0.15.1b-linux, pharo0.1-10379dev09.07.3.zip set #3: exupery 0.15-linux, pharo0.1-10373web09.07.2.zip set #4: exupery 0.15-linux, pharo0.1-10379dev09.07.3.zip all sets with SqueakV39-sources.zip In all sets, both machines, the problems were the same. I've been playing with squeak 3.9 installed from the official ubuntu repository in both machines and it runs fine. I tried using that interpreter with the pharo images and it couldn't read the images due to version mismatch (6502 vs. 6504). I' tried to compile the last squeak but I didn't had all dependencies at hand, and it was too late. Thanks -- Ing. JosÃ© Dinuncio Unidad de Redes TelemÃ¡ticas Universidad de Carabobo

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[Pharo-project] [ANN] Algernon now available in Pharo
by Esteban Lorenzano July 22, 2009

July 22, 2009

Hi, I uploaded a new version of Algernon, now working with Pharo. The changes I introduced were: -changed the updating system: now it is automatic, but just when Algernon is shown (this will make a little bit slower the showing of Algernon, but preserves you from need to press cmd+r to refresh the system -who after all, everybody I know does every time-). -using #beginsWith: instead deprecated #startsWith: -using #fileOutCategory: instead non-existing #fileOutCategory:asHtml: You will need latest changes of Pharo (Stef fix to TextMorph), and execute this script to have Algernon on your system: ScriptLoader new installingUniverse. "In case you don't have already Universes installed" Installer universe addPackage: 'Algernon'; answer: '*' with: false; install. Installer ss project: 'Algernon'; install: 'Algernon'. Installer wiresong project: 'ob'; install: 'OB-Algernon'. Algernon open. Cheers, Esteban

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[Pharo-project] Why Pharo?
by Esteban A. Maringolo July 22, 2009

July 22, 2009

Hello, Mariano's post spurred me to write my reasons of "why to use it", so I started this post. >>After many hesitations (I was reluctant to use Squeak) I decided to >>use Pharo for it and not Dolphin (my favorite Smalltalk), because of >>several reasons. >would be nice to know them hehe >sorry...in another thread. - It's mainly about getting mainstream, and not willing to develop everything from scratch once and again. - At work we've developed everything by our own on VSE/Dolphin, so every time we wanted to do something, we had to build it by ourselves (most of it). We even had a Magritte like framework (years before Magritte existed), persistence, reporting, etc. Now some of them, are very mature frameworks. But I can't borrow any of them for personal use ;-) and don't want to spend a year rewriting the frameworks I've created, contributed to or used at work. - Because what I want to build is going to be web based (and I hope to get it mobile to), anything that runs on linux is good to be considered as a server solution. - So I wanted a rich class library/frameworks, in order to be able to focus on the business logic I want to build. - I wanted to have the latest versions of such frameworks, even when it's getting easier to port them (I did port Swazoo and Seaside in the past), I'm not in the mood to do it now (yes, I'm getting lazy). - Because Dolphin future is uncertain yet, DNG seems to be the next-generation VM/Smalltalk, but I can't wait until it's ready, the conditions clear ($$$) and have the above mentioned points included. - Because I like where Pharo is going to, or seems to be going. I like its mission and how its being managed (releases, issues, patches,tests). It's a solid foundation for any reliable project. - Because nothing really new has come from other really good smalltalks like VAST/Dolphin/VW, everything is getting ported, and eventually a contribution gets back to the source. I see GLASS as an "extension" of Pharo/Squeak, because it was made very compatible, and the edges in contact work very close to each other (GLASS is useless if outdated in relation with Pharo/Squeak). - Because after all, Pharo is also Smalltalk. And I rather choose it before going to other also good stuff (like Rails), or not so good as PHP/Java/DotNet) - I want to focus on the business I'm trying to solve, and forget about everything mentioned above. The only thing that keeps me remembering the stuff above, is I'm still not comfortable as I am with Dolphin, not just because of habit. Dolphin's IDE is really neat, quick, consistent, gets the stuff done and then gets out of your way. You have to use it and do some real work to understand what I'm talking about. But I'm pretty confident Pharo will achieve such level of maturity in the not so far future. I hope it clears my reasoning behind choosing Pharo. Best regards, -- Esteban

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[Pharo-project] Broken link
by Norbert Hartl July 22, 2009

July 22, 2009

The link on http://code.google.com/p/pharo/wiki/Downloads?tm=2 does not work. It points to http://pharo-project.org/download but seems it should point to http://pharo-project.org/pharo-download Norbert

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[Pharo-project] Copying image+changes between Windows and Linux
by Schwab,Wilhelm K July 22, 2009

July 22, 2009

Hello all, Are any of you using both Linux and Windows? Is it just me, or does button swapping get weird when bouncing between the two? I'm not sure if the behavior is random, or if there is a pattern to it. So far, it just seems to work as I expect sometimes, and not others, and I _think_ changing OS is a trigger for it. Bill

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[Pharo-project] Fwd: [squeakland] Four year old and her older sister win a Squeak-based programming contest in Singapore
by StÃ©phane Ducasse July 22, 2009

July 22, 2009

This is why I was sad to curve out etoys. But this is life. Stef Begin forwarded message: >> I thought I should share this success story on this list. >> >> http://www.straitstimes.com/Breaking%2BNews/Singapore/Story/STIStory_405695… >> >> I am a concil member of the Singapore IT Standards Committee[1] and >> an >> organizer of the >> code::XtremeApps[2] programming contest. We have had a Junior >> Category since 2008 >> and it is targeted at children 12 years and below. Last year we used >> Alice and this year >> we used Squeak. We had about 31 teams with about 80 children >> participate in this contest. >> >> The link above is about a two-person team (a 4 year old and her 8 >> year >> old sister) who >> wrote an application on healthy lifestyle focusing on anti-smoking >> messages. >> >> Thanks. >> >> [1] http://www.itsc.org.sg >> [2] http://www.itsc.org.sg/codeXtremeApps2009.html

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[Pharo-project] jpg woes
by Brian Mason July 21, 2009

July 21, 2009

I am trying to take an image off the new and save it to a file. This is what I have so far: (FileStream newFileNamed: 'test.jpg') nextPutAll: ('http://freetalklive.com/images/amondson.jpg' asUrl retrieveContents) getContentFromStream; close The image exists, is found, and the file is written. There is something wrong with the format of the local jpg. I would appreciate some guidance. "You can have everything you want if you just help enough other people get what they want." - Zig Zigglar

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[Pharo-project] Another field to use Pharo?
by Mariano Martinez Peck July 21, 2009

July 21, 2009

Pharo looks promising (and it is already) for web developing. But, there was no light in the desktop applications. However, a couple of different posts make me thing that perhaps I was wrong. 1) We know removing Morph and replace it with native OS rendering or delegating to an external library can be complicated to be supported in all OS and it will probably require a lot of work. Someone (I cannot find the mail) propose a little VM change that let the image to open MORE than 1 native OS windows. Right now, only one is open. Ok, they will be rendered using Morph, but there can be several :) 2) Someone (I don't remember who) created a w2k theme so that our morphs looks like windows applications (I really don't like it but final users do hahaha) 3) NullPointer said in the mailing list he is doing a GUI builder for Pharo. You can see a video here: http://www.youtube.com/watch?v=CHbc1t83fEI So....if I take into considerations these 3 topics I will be able to use Pharo for normal desktop applications ? best, Mariano

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[Pharo-project] VersionHistory and VersionNumber
by Adrian Lienhard July 21, 2009

July 21, 2009

Does anybody use these two classes? Are they worth being kept in the core (there are no users in the core)? Class comment: A version history is a collection of VersionNumbers that together form a tree of versions. I enforce rules about how versions are added and removed from the history. Adrian ___________________ http://www.adrian-lienhard.ch/

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[Pharo-project] HostSystemMenuTest MNU
by Adrian Lienhard July 21, 2009

July 21, 2009

Hi Marcus, In the test below, which has your initials, the following methods are not understood. calculateShouldBeFrom:using: and modifySqueakMenu: Maybe you know where to get these methods from, how to implement them, or if we should rather delete the test? Cheers, Adrian HostSystemMenuTest>>testCharacterChanging | testString item shouldBe resultingString where | #(';' '^' '!' '<' '/' '(' ) do: [:c | #('*' '* ' '* ' '**' '** ' '** ' ')' '*)' '* )' '* )' '**)' '** )' '** )' ')' '*)' '*X)' '*XX)' '**)' '**X)' '**XX)' '))' '*))' '*X))' '*XX))' '**))' '**X))' '**XX))' '(' '*(' '*X(' '*XX(' '**)' '**X(' '**XX(' '((' '*((' '*X((' '*XX((' '**((' '**X((' '**XX((' ) do: [:template | testString := template copyReplaceAll: '*' with: c. testString permutationsDo: [:mixedUp | item := mixedUp copy. shouldBe := self calculateShouldBeFrom: item using: c. resultingString := self modifySqueakMenu: item copy. self should: [shouldBe = resultingString]. (where := resultingString indexOf: $/) > 0 ifTrue: [self should: [(mixedUp at: where) = $(]. self should: [(mixedUp at: where+2) = $)]. self should: [(mixedUp at: where+1) asUppercase = (resultingString at: where+1)]]]]]

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