November 2013 - Pharo-users

Fresh downloaded Pharo 2.0 and Pharo 3.0 doesn't run on macos (mavericks)
by vmusulainen Nov. 26, 2013

Nov. 26, 2013

Hi all, I downloaded pharo 3.0 and pharo 2.0 right now and I can't run both apps. I get following message for Pharo 2.0 (For Pharo 3.0 appears same message): "âPharo2.0.appâ is damaged and canât be opened. You should move it to the Trash. Google Chrome.app downloaded this file today at 2:39 from www.pharo-project.org." Have someone similar problems? -- View this message in context: http://forum.world.st/Fresh-downloaded-Pharo-2-0-and-Pharo-3-0-doesn-t-run-… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Mugs, mouse mats, stickers
by Jeff Gray Nov. 25, 2013

Nov. 25, 2013

What else would you like in the Pharo store? Personally I'd like to have a t-shirt. -- View this message in context: http://forum.world.st/Mugs-mouse-mats-stickers-tp4724644.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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NativeBoost Questions while wrapping FMOD
by Sean P. DeNigris Nov. 25, 2013

Nov. 25, 2013

I'm wrapping the FMOD cross-platform audio library. The code is MIT and lives at http://smalltalkhub.com/#!/~SeanDeNigris/FMOD ======== Problem #1: ======== I'm calling into the FMOD library with: primStoreIsPlaying: channelHandle in: isPlayingHandle <primitive: #primitiveNativeCall module: #NativeBoostPlugin> "FMOD_RESULT FMOD_Channel_IsPlaying( FMOD_CHANNEL *channel, bool *isplaying);" ^ self nbCall: #(FMOD_RESULT FMOD_Channel_IsPlaying(NBExternalAddress channel, NBExternalAddress isPlayingHandle)). I call the above with: isPlaying | isPlaying | isPlaying := NBExternalAddress new. self primStoreIsPlaying: channel in: isPlaying. ^ isPlaying value > 0. isPlaying is always 0. The method works directly from C with: int isPlaying = 1; while (isPlaying) { FMOD_Channel_IsPlaying(channel, &isPlaying); } I also tried changing the callout signature to "... bool* isPlayingHandle)" and passing "isPlaying := true." instead of using the NBExternalAddress stuff. I have a few more questions, but this is the most pressing as it's holding up any further development. Thanks! ----- Cheers, Sean -- View this message in context: http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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MCRepository can notify by email, did you know?
by Martin Dias Nov. 25, 2013

Nov. 25, 2013

Hi, I just discovered this feature and wanted to share it: When a version is saved, the file repositories check if a file named 'notify' exists in the repository directory [1]. If it exists, then it reads email addresses from that file and send emails notifying the new version [2]. We noticed with Camillo that this seems to be the only usage of SMTPClient in the image. I wonder if somebody is using this feature. Best regards, MartÃn ps: I'm talking of Pharo 3. [1] MCFileBasedRepository>>notifyList [2] MCVersionNotification>>notify:

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PharoLauncher howto (was: SimplePersistence ...)
by Torsten Bergmann Nov. 25, 2013

Nov. 25, 2013

Norbert wrote: >How do you use it? Iâve just downloaded but failed to see how I can work with it. Warning: ======= Note that PharoLauncher is a project still in progress - I think Damien can tell you more about all the nice stuff. I just contributed some code and use it daily now. But lets continue with a short HOWTO (from my personal experience): -------------------------------------------------------------------------------------------------- PharoLauncher HOWTO: ==================== Before ====== I'm typically on Windows - in the past I had several folders with images everywhere on my HD. Sometimes with the VM, sometimes without. Lots of image searching as you can imagine. How I installed it: =================== So I downloaded a VM from http://files.pharo.org/vm/pharo/ and the latest ZIP with image and changes from https://ci.inria.fr/pharo-contribution/job/PharoLauncher/ I also put the source file into the same directory which I copied from the regular Pharo distro. All lives in one directory. I also use Linux boxes, for Ubuntu follow: http://www.pharo-project.org/pharo-download/ubuntu to get the launcher. Note that this currently will install an old image, so you have to load newer packages afterwards in the image or exchange the image. Installation will surely be simplified in the future. How I use it ============ Just launch the Pharo launcher image using the platform specific VM. Usually for "end user experience" the launcher opens in full world mode - so you see no Pharo background/world menu - only the launcher. Initially on a new computer the left side with local images is empty. On the right side are the images that are available on the web. Note that there are refresh buttons at the top of the list. Click "Refresh" in the right list to fetch all available images from the web. Select the image you like and download it. For instance you can download "Pharo3.0" -> "30587" which is the latest image as of today. Note that also the images from contribution CI are available. So you can easily download "Artefact", "Moose", ... images if you like. It will download the image into a specific directory somewhere in your users home directory. Each image gets an own folder. Use the "Show in folder" menu item if you want to open this location (may not yet work on all platforms) After download you can either "Launch" the image from the context menu in the right list. This will open the new image and close the launcher image. So you are ready to start working. What I do typically do is to "Copy" the image BEFORE I do any work and name it differently like "30587-MyStuff". Then I Launch the new copy and work with it, later throw it away or try that loading after commits works within new fresh images, ... Now === My HD is now much cleaner - all images are in a central place and I need only one icon/starter on the desk to open. PharoLauncher is also a very handy tool to download specific image update versions if you want to reproduce or fix Pharo bugs. I also associated one of the unused laptop keys with PharoLauncher - so the world of Smalltalk is just one click away... Things to know: =============== At the bottom there is a button to open a settings browser with specific settings for PharoLauncher. There is an option that enables the IDE again - so you can inspect the code or fix a bug. If it does not launch on your box then set a break in PhLImage>>launch to debug. Also note that it does not fit with the "Save as" image style - since each launcher image has to be in a new directory so far. So either use the "Copy" image, then "Launch" and then only "Save" in the target image or copy the "Saved as" image in a new folder and refresh the Launcher view on the right side. When you develop for it ======================= Either use the latest image from CI and enable the IDE as written before. You can also download the latest also in a Pharo 3.0 image. Just use the ConfigurationOfPharoLauncher from http://smalltalkhub.com/#!/~Pharo/PharoLauncher Then evaluate "PharoLauncher open". Currently it was rewritten using Spec for the UI, also all the actions are rewritten using Command Pattern so you can extend the buttons, menues if you like. Hope this helps a little bit Bye T.

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[launcher] templates from fixed URLs
by btc＠openinworld.com Nov. 25, 2013

Nov. 25, 2013

Hi Damien, I like the PhLFixedURLsTemplateGroup you just added to directly reference specific urls like Pharo 3.0 latest. I corrected a problem with Settings. Also I think its useful to be explicit about the ones that refer to 'latest' so I made that change. Could you review these. The next great thing would be to allow users to add their own fixed urls without coding. btw, I was going to follow your example to change PhLTemplateGroupRepository>>refreshLocal to >>refreshFast but it seems the only sender is itself, and also inserted breakpoints do not trigger. Looks like it is surplus to requirements. cheers -ben

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Bootstrap for Seaside question
by Torsten Bergmann Nov. 25, 2013

Nov. 25, 2013

>Bootstrap for Seaside is really cool, it allows to quickly build something that looks very polished. Thanks Torsten! You're welcome. In return you should send give a screenshot and short description for the Pharo success story page. The more showcases we have the better it is... Regarding your question: #tbsButton returns a button as the name says. TBSButtonTag is a subclass of WAButtonTag because the offical examples are also using <button> See http://getbootstrap.com/components/#btn-groups But a button should also support #callback: So it is not an anchor by default. Make sure to have a #form: around it and #children is correct. Otherwise callbacks will not work. Note: you can also leave out the whole bootstrap wrapping part and use Bootstrap styles directly, for instance with an anchor: html anchor class: 'btn btn-default'; callback: ... with: [] Haven tested since I have no image at hand - but should work out of the box. One could easily wrap this into a #tbsAnchorButton and "WAAnchorTag subclass: #TBSAnchorButtonTag" supporting the same API. Contribute code + tests if you like. I added you on STHub. Bye T.

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[Athens] Finding if a line passes through a specific pixel .
by kilon alios Nov. 25, 2013

Nov. 25, 2013

So here we are with my first challenge. I am making Hyperion, a vector graphics editor using Athens , so far I have a nice line with several segments, I have added nice handlers to allow me to move the points (start and end of each segment) of the line around with the mouse, but now I want each time I click on a segment itself to create a new point.This way I will create more points with the mouse and bring more detail to the shape of the line / path. In order to do that I will have to check that the line passes through a specific pixel. Or to be more correct that the place that mouse has clicked is where my path passes through. How I do that ? Can Athens do that ? Can athens tell me which pixels my path passes through ? At first I thought to return the Athens surface as a Form but the form will give me back the colors of each pixel on a specific place, but that does not guarantee that my line / path passes through those pixels.

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[launcher] Refresh buttons in status bar
by btc＠openinworld.com Nov. 25, 2013

Nov. 25, 2013

Hi Damien, I've just noticed that the latest PharoLauncher has two <Refresh> buttons in the status bar. This since the their superclass is PhLGeneralCommand rather than PhLImageCommand or PhLTemplateCommand classes. Is this intentional? cheers -ben

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Bad UT8 encoding got with a SQLite3 query
by Torsten Bergmann Nov. 25, 2013

Nov. 25, 2013

>I know nothing about the sqlite3 code, but if you canât find unit tests doing non-ascii stuff, and you can't find conversion >code, than the original author(s) probably just didnât implement it. > >I might be wrong, but that would be a shame, since utf-8 encoding/decoding is fully supported in Pharo. Yes it is not implemented. As in any other open source project it is a question of time and contributions. History of SQLite3 package is much much older than Pharo - original implementation was for Squeak (Avi Bryant's SQLite (v.2) wrapper), I then packaged it up as an MCZ so it did not get lost and a repository on SqS was created. Andreas Raab then contributed to it, he was at my knowledge the only one who really used it in own projects. Later after the closing of SqS was announced I moved the code to STHub. As I already mentioned - code is rather old, based on unmaintained FFI and it should better be redone using NativeBoost because I'm sure meanwhile also SQLite library already made some progress. Bye T.

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How to discover which test fails (pharo 2.0)
by Davide Varvello Nov. 25, 2013

Nov. 25, 2013

Hi! I'm on Pharo 2.0. When I run a bunch of tests I usually select a lot of packages from Nautilus and click cmd-t to run them, but unfortunately if one test fails, only a yellow box in the lower left appears and it's time consuming to look for which test fails in which package. I'd love to have the good old dialogs with all the failing tests. Is there a way, in the configuration, to have them back? TIA Davide -- View this message in context: http://forum.world.st/How-to-discover-which-test-fails-pharo-2-0-tp4723744.… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Writing a GUI - Where to start?
by Bahman Movaqar Nov. 24, 2013

Nov. 24, 2013

Hi all, I need to build a typical GUI application (menus, buttons, modal dialogs, ...). I'd appreciate if you could point me to where should I start and what are the choices for a UI framework in Pharo? TIA, -- Bahman Movaqar (http://BahmanM.com) ERP Evaluation, Implementation & Deployment Consultant PGP Key ID: 0x6AB5BD68 (keyserver2.pgp.com)

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Bad UT8 encoding got with a SQLite3 query
by Michel Nov. 24, 2013

Nov. 24, 2013

Hi everyone, I have a sqlite3 data base which is UTF8 encoded. Accessing to it with a ruby script gives me the right encoding for accented vowel, and doing an hexdump of the file too, but I get a strange one with the sqlite3 package in pharo 2.0. For example, for 'Ã©' (UTF8 0xC3A9) I get 0xA6A9, for 'Ã¨' (UTF8 0xC3A8) I get 0xA6AE, for 'Ã ' (UTF8 0xC3A0) I get 0xA686, for 'Ã¹' (UTF8 0xC3B9) I get 0xA69A, ... Looking at the smalltalk code I didn't see any translation and of course if I attempt to use the UTF8TextConverter I get an error. Any idea ? Thanks in advance. Michel.

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How to load the PetitPHPParser?
by HernÃ¡n Morales Durand Nov. 24, 2013

Nov. 24, 2013

Loading in Pharo 2.0 gives warning with lots of dependencies: This package depends on the following classes: PPCompositeParserTest PPCompositeParser You must resolve these dependencies before you will be able to load these definitions: PPPHPCoreGrammar ... I have used: Gofer new squeaksource: 'PetitPHPParser'; package: 'ConfigurationOfPetitPHPParser'; load. (Smalltalk at: #ConfigurationOfPetitPHPParser) perform: #loadDefault. Cheers, HernÃ¡n

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Bootstrap for Seaside question
by Johan Fabry Nov. 24, 2013

Nov. 24, 2013

Hi all, I'm using Bootstrap for Seaside to make a small web app for managing the hardware resources (Lego Mindstorms! :-) ) of a course I am giving next semester. Bootstrap for Seaside is really cool, it allows to quickly build something that looks very polished. Thanks Torsten! But now I have a question: I am using buttons at some place in the app (to remove a registered inventory), but I cannot get the callback to work, the examples do not show how to do it. The code I have is below: html tbsButton beDanger; callback: [inv inspect]; with: 'Delete!'. How do I make this work? It seems strange to need to to place an anchor in the button for it to work. ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

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Thread safe queue like collection
by Esteban A. Maringolo Nov. 24, 2013

Nov. 24, 2013

Hi, Do Pharo 2 have some sort of queue like collection, where different threads (coming mostly from a Multithread Zinc Server) can push objects into it safely, while a service on the other end can consume the queue? Regards, Esteban A. Maringolo

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Nautilus pkg-pane regression in pharo 3.0?
by Lorenz KÃ¶hl Nov. 24, 2013

Nov. 24, 2013

Nautilus has stopped jumping to packages when the focus is in the package pane and keys are pressed (the same behaviour use from eg. osx finder) Is that a regression or intended?

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Deploying a polymorph app - two questions
by kmo Nov. 24, 2013

Nov. 24, 2013

I have written a small Polymorph application in Pharo 2.0. I have some questions about deploying it. My app consists of a single morph. I would like to fill the pharo window with the morph and have the morph resize when the user resizes the pharo window. I'm pretty close to what I want. I have made my morph a subclass of FullscreenMorph and it is filling the window nicely. I just need two things. One - I need to change the pharo window title to the title of my application. I have tried DisplayScreen hostWindowTitle and it seems to have no effect. Two - I need to get rid of the Pharo window status bar - the one at the bottom which shows you the various windows, browsers, and workspaces you have open. Can anyone give me some guidance? Thanks. -- View this message in context: http://forum.world.st/Deploying-a-polymorph-app-two-questions-tp4724525.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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spec and double click
by Lorenz KÃ¶hl Nov. 24, 2013

Nov. 24, 2013

I have a ListComposableModel rendered with spec that I want to do something if an element is double clicked. How do I register the event handler? I know about on:send:to but what Announcement do I use? In my testing with just a symbol #doubleClick it doesn't work (and probably isn't supposed to). thanks, Lo

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Merchandise in your locale
by Jeff Gray Nov. 23, 2013

Nov. 23, 2013

Just a reminder to have a look in the Pharo store. There are a number of sites around the globe to allow you to shop in your language and to reduce postage charges: USA (English) http://www.zazzle.com USA (EspaÃ±ol) http://www.zazzle.com/?lang=es Canada (English) http://www.zazzle.ca Canada (FranÃ§ais) http://www.zazzle.ca/?lang=fr UK http://www.zazzle.co.uk Deutschland http://www.zazzle.de EspaÃ±a http://www.zazzle.es France http://www.zazzle.fr Portugal http://www.zazzle.pt Sverige http://www.zazzle.se Nederland http://www.zazzle.nl Ãsterreich http://www.zazzle.at Schweiz (Deutsch) http://www.zazzle.ch Suisse (FranÃ§ais) http://www.zazzle.ch/?lang=fr Belgique (FranÃ§ais) http://www.zazzle.be BelgiÃ« (Nederlandse) http://www.zazzle.be/?lang=nl Australia http://www.zazzle.com.au New Zealand http://www.zazzle.co.nz æ¥æ¬ http://www.zazzle.co.jp ëíë¯¼êµ http://www.zazzle.co.kr Brasil http://www.zazzle.com.br -- View this message in context: http://forum.world.st/Merchandise-in-your-locale-tp4724632.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] Writing a GUI - Where to start?
by Stephan Eggermont Nov. 23, 2013

Nov. 23, 2013

>About Glamour, isn'it used to create Browser? How can i create a typical window? What is a typical window? Spec gives too much freedom and not enough structure for 'typicalâ applications. Almost every window in your smalltalk system is a browser. Nearly all would be significantly less code when build with Glamour. Stephan

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Making more memory available to VM on OS X.
by nacho Nov. 23, 2013

Nov. 23, 2013

Hi, I'm doing some fractal drawings which requires a great number of iterations and point drawing. Once the given fractal set is rendered Pharo becomes very sluggish. Is there a way to allocate more memory to the VM upon starting it? thanks Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Making-more-memory-available-to-VM-on-OS-X-tp4724556.… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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How to combine Pharo Desktop and Seaside?
by Torsten Bergmann Nov. 23, 2013

Nov. 23, 2013

Hi, If you want to write your collection to a static HTML page you can |aCollection| aCollection := #('Smalltalk' 'Object'). FileSystem workingDirectory / 'test.html' writeStreamDo: [:stream | stream nextPutAll: '<html><head></head><body><ol>'. aCollection do: [:each | stream nextPutAll: '<li>'; nextPutAll: each asString ]. stream nextPutAll: '</ol></body><html>']. and then serve it from an external webserver (like Apache or Nginx). But this is static html file generation. I'm sure you want something more dynamic. So you can serve the contents right from the image using one of the Smalltalk webframeworks like Seaside or Aida. Here is a short Seaside HOWTO for this: Prepare an image with Seaside ============================= - download Pharo 2.0 from www.pharo.org - start it, then select "Tools" -> "ConfigurationBrowser" from the world menu to open a list of additional loadable packages - search for "Seaside3" and click on "Install", this will install the seaside web framework into your image - When loading is finished just open a workspace ("Workspace" from world menu) and evaluate ZnZincServerAdaptor startOn: 8080 This will start a local webserver right from your Pharo image on the given port. - check with a web browser (Firefox, Chrome, IE, ...) that Seaside is running by opening http://localhost:8080 There you can browse first Seaside examples. As an alternative to the above steps you can also download a premade Seaside distribution from http://seaside.st Implement your own webapp ========================= - open the Nautlius System browser ("SystemBrowser" from the world menu) - implement an own Seaside component class WAComponent subclass: #MyHome instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'KillerApp-Web-UI' - now register this class for Seaside by evaluating the following expression in a workspace WAAdmin register: MyHome asApplicationAt: 'killerapp' This registers your component as an own custom seaside application under /killerapp. - so if you point your browser now to http://localhost:8080/killerapp you will see an empty page - but it means you application is there but has not yet some content - now implement an instance side method called #renderContentOn: on the MyHome class renderContentOn: html "Render a collection as html list" |coll| coll := #('Seaside' 'is' 'really' 'cool'). html orderedList list: coll. - refresh your browser on http://localhost:8080/killerapp you will now see the contents of the collection How to continue =============== Read books, try to implement something and if in doubt just ask on the mailinglist. There is also a seaside mailinglist http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside Learn about Pharo by getting on of these books: http://pharobyexample.org/ http://rmod.lille.inria.fr/pbe2/ learn about Seaside http://book.seaside.st/book learn about Smalltalk in general with these free books: http://stephane.ducasse.free.fr/FreeBooks.html

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Re: [Pharo-users] Spec - Tutorial Series
by Bahman Movaqar Nov. 23, 2013

Nov. 23, 2013

On 11/22/2013 13:51, prova email wrote: > Hi Bahman, > i just finished to read the second Spec Tutorial, great tuto as > always. Only one question: why do you define the defaultSpec in the > Class-side? > I'm glad you found it useful. RE `defaultSpec`, I believe that's the way it is supposed to be. When I was writing the episodes, I had to read the `Spec-Examples` to figure out how to do stuff and all the examples defined `defaultSpec` as a class-side method. Maybe I'm doing it wrong. I'd appreciate if Benjamin could shed a light on this. -- Bahman Movaqar (http://BahmanM.com) ERP Evaluation, Implementation & Deployment Consultant PGP Key ID: 0x6AB5BD68 (keyserver2.pgp.com)

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Cleaning up Voyage Documentation
by Johan Fabry Nov. 23, 2013

Nov. 23, 2013

Hi all, I am building a small app that uses Voyage and MongoDB as the database, and so I had many questions regarding how to use it and found the documentation lacking. After conversing with Esteban, I proposed that I improve the 'Pharo for the enterprise' chapter on Voyage, based on his responses to my questions. (See https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSucces… and https://github.com/SquareBracketAssociates/PharoForTheEnterprise-english/tr… for the sources) So a heads-up: I would like to take a 'lock' on that text for some days (to avoid conflicts and the associated unpleasantness), as I go improving and expanding it in the next few days. Also, if you have questions and/or remarks about Voyage and/or the documentation, shoot! I will do my best to address them. Greetings, ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

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