November 2013 - Pharo-users

[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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