- Pharo-users - lists.pharo.org

Start up actions
by PBKResearch Nov. 5, 2014

Nov. 5, 2014

Hello I have a puzzle as to how to implement a start-up action. I would like to have a monitoring process running in the background while I am working on my project, and it would be easier if this process started up automatically when the image is loaded. I have hunted through my current image, and I have found three possibilities: a. Include a file named startup.st in the same folder as the image, and put a script to start the process in this file. b. Add a startup: method to the class controlling the background process, and do Smalltalk addToStartUpList: MyClass. c. Do Smalltalk addDeferredStartUpAction: [block which starts the process]. The first looks easiest, but it seems untidy to rely on having a separate file sored with the image. All these methods should work; is there any reason to prefer any one of them, or any other better method? Thanks in advance for any advice. Peter Kenny

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FFI structs
by Annick Fron Nov. 5, 2014

Nov. 5, 2014

I I have a C struct with a char* struct result { char* time } I define an ExternalStructure in FFI , with one field of type char* (note that the syntax char [5] is not accepted ! ). defineFields generates the accessors time and time: If I use time: â05:45â I get an error. How do I set a string value in an ExternalStructure ? Annick

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Script as first class citizen
by Hilaire Nov. 5, 2014

Nov. 5, 2014

Hello, Within DrGeo I would like to extend the capability of script. As for now, a script is just method user written method integrated in an existing DrGeoUserScript class. It is a very light implementation, and it makes it easy to export the script in the sketch (a XML file). However it is very limited as there are no way to provide type checking on the script argument, customized view for the script in the canvas, external support as comments, name scrip., etc. I will be curious to read about any opinion how to improve it. Thanks Hilaire -- Dr. Geo - http://drgeo.eu iStoa - http://istoa.drgeo.eu

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Render PDF / Web Document in Pharo
by Sean P. DeNigris Nov. 5, 2014

Nov. 5, 2014

Is it possible to display either in a Morphic world? As a start, even a non-interactive preview would be valuable... Thanks. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Render-PDF-Web-Document-in-Pharo-tp4788409.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Memoization Question
by phil＠highoctane.be Nov. 4, 2014

Nov. 4, 2014

How can I do memoization in Pharo? I mean, a generic mechanism that will help me wrap the caching around the method invocations / messages. I have expensive calls that do not have to refresh their results as often as they are called. TIA Phil

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Porting to a MAC
by Ian Bartholomew Nov. 4, 2014

Nov. 4, 2014

Hi All. I'm a long time (25+ years) Smalltalk user, but only 3 days using Pharo so I'm still stumbling around a bit (lot). I have an app that I need to run on Windows and a Mac (possibly Linux at a later date). I've ported the code over from Dolphin and got it working using Pharo 3.0 on my Windows box. I am just going to set the app running, save the image and then send the whole Pharo folder over to the Windows user - that will work won't it? The problem is the Mac user. As I can't set up the Mac image in the same way (I have no access to a Mac box) I was wondering if I could just replace the changes,sources and image files in the Mac download with the ones I've set up for Windows and send that to him. Would that work or do I need to send him file outs of my code and talk him through install and set-up. Thanks

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OSProcess command never ends
by Offray Vladimir Luna CÃ¡rdenas Nov. 4, 2014

Nov. 4, 2014

Hi all. I'm having problems with OSProcess. When I run "OSProcess command: 'my command'" on Linux, the Moose playground says that "an ExternalUnixOSProcess with pid 20887 on /bin/sh (running)", but the external process never ends. What I'm missing? Cheers, Offray

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Zoomable & Infinitely scrollable PasteupMorph
by Sean P. DeNigris Nov. 3, 2014

Nov. 3, 2014

I need to create such a beast. What is my best bet to build on top of? I see the GT playground seems to have something like this for the Roassal previews... ----- Cheers, Sean -- View this message in context: http://forum.world.st/Zoomable-Infinitely-scrollable-PasteupMorph-tp4778229… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Reactive Programming - anything like that in our realm?
by phil＠highoctane.be Nov. 2, 2014

Nov. 2, 2014

I was reading https://gist.github.com/staltz/868e7e9bc2a7b8c1f754 It looks like that this is where the new apps are going. Do we have anything on that Rx front? Phil

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AST tokens question
by Mark Rizun Oct. 30, 2014

Oct. 30, 2014

Hi all, Trying to understand here how tokens are used in AST. So far I can not see any order in usage of tokens. For instance, why RBValueNode doesn't have token? Is it haow it's supposed to be? Cheers, Mark

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