November 2015 - Pharo-users

Custom type inference and RoelTyper
by Peter Uhnak March 14, 2016

March 14, 2016

Hi, Moose/FAMIX uses RoelTyper for type inference, how this does not seem to be maintained (last version 2013), and for my purposes is lacking. So do we have something more advanced, even at the expense of speed? Other alternative would be to either extend RoelTyper or write something custom that would be ran alongside RoelTyper. Examples of such extensions would be extracting the type from meta-annotations and the actual argument names. (e.g. if an argument is named aString, I can safely assume that it will be String). Thanks, Peter

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Analyzing Tweets
by Alexandre Bergel March 10, 2016

March 10, 2016

Hi! Some students from Arizona State University are analyzing some tweets. This is pretty cool. Here are some short video and url full of pictures: https://sites.google.com/a/asu.edu/project-geeko/ https://drive.google.com/file/d/0BxQoWoSofKvaTkN5bk9hN0NyQ28/view https://www.youtube.com/watch?v=cnuc_crnWB0&feature=youtu.be Impressive! Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Zn / Connection closed while waiting for data
by Volkert March 2, 2016

March 2, 2016

Dear all, " 'http://bl.ocks.org/mbostock/raw/4063318/dji.csv' asUrl retrieveContents " lead to this error: "wget http://bl.ocks.org/mbostock/raw/4063318/dji.csv" fetches the csv file. The snippet is part of the Roassal RTCalenderExample>>exampleVisualizationCSV and i had never a problem with it. Pharo4.0 Latest update: #40621 On Ubuntu 14.04 Volkert

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Using GTSpotter how do I find an implementor of #accept ?
by Paul DeBruicker Feb. 20, 2016

Feb. 20, 2016

when I hit shift+enter and type 'accept' I get things that are not #accept, e.g. #accept: and AbstractAcceptor. If I add a space after accept it doesn't help. What do I not understand? Thanks Paul

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Customised auto-completion to give priority to specific packages
by Dimitris Chloupis Feb. 20, 2016

Feb. 20, 2016

As a next step for my project Ephestos , I want to mess with auto-completion. My goal is for auto completion to give priority to the Ephestos packages. This way the Ephestos users will get recommended first auto completion of Ephestos classes and methods, I will then add a line to separate those from the rest of Pharo recommendations. I could customise this further to accomodate for any package inside pharo thus making the autocompletion prioritise your packages and classes/methods. Is there any interest for something like that ? If there is then I could make it into a separate Pharo project and make it easy to install via Package Browser (Pharo 5 configuration browser) . If there is no interest then I can keep it as part of my project and not do the extra work for separating the code. I also welcome any advice and recommendation on how to achieve this by people who already hacked auto completion. I already study the NECompletion package so I have a general idea but so far have not figure out how to priorotise recommendations.

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World lastKeystroke and openInWorld: aPasteUpMorph
by Markus Schlager Feb. 20, 2016

Feb. 20, 2016

Hi, I'm using pharo to teach smalltalk as first 'real' programming language at school. With older versions of pharo I was glad that my pupils could track keystrokes so easily by evaluating World lastKeystroke. With Pharo3.0/4.0 this only returns '<down>' independently of any keys I'm typing. f := PasteUpMorph new openInWorld. f takeKeyBoardFocus. f lastKeystroke. Is returning the empty string. Hence, my question: Is lastKeystroke broken, or how is it meant to be used now? Second problem: In older versions of pharo this would work: f := PasteUpMorph new openInWorld. b := EllipseMorph new. b openInWorld: f. But with Pharo 3.0/4.0 the last line raises an error: MessageNotUnderstood: PasteUpMorph>>startSteppingSubmorphsOf With f := WorldMorph new openInWorld. b := EllipseMorph new. b openInWorld: f. pharo freezes. So: How is openInWorld: meant to be used? Markus

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Spec: Binding widgets how to
by Offray Vladimir Luna CÃ¡rdenas Jan. 17, 2016

Jan. 17, 2016

Hi, I'm starting to migrate my grafoscopio interface from only GT to Spec-Glamorous. I have kind of a working layout as you can see: and now I want to bind the different widgets so when I select a tree node I can show/edit its title and contents. I have read the Spec documentation on how to do this [1] and the ListSelectionModel code from Spec-Examples, but seems I'm missing something. [1] http://spec.st/docs/interactions/ So, I have a GrafoscopioGUI>>initializePresenter tree whenSelectedItemChanged: [ self updateHeader ] and GrafoscopioGUI>>updateHeader "update the displayed text associated to the header" ^ nodeHeader text: tree selectedItem. but when I move on the tree, nothing happens in the header panel at the bottom. What I'm missing? Thanks, Offray

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Halo Menu On Spec Tree Node
by Craig Johnson Jan. 6, 2016

Jan. 6, 2016

Hi All, I had an issue - when I opened a Halo on a Spec tree node in the UI and select the menu Icon, I got a DNU message. However if I selected a normal Morph, the menu Icon worked fine. I'm using Pharo 4.0 released version. Fixed this by changing TreeModel>>iconFor to: iconFor: aNode ^ iconBlock value cull: aNode content*s* cull: aNode Craig

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Fossil and Filetree
by Hilaire Dec. 25, 2015

Dec. 25, 2015

Hi, I have been trying Fossil with Filetree, and I was rather please by the mutuals use of these tools. So I may share a few feedbacks. Fossil[1] itself is a software to manage source code development. It is very simple to install and data is saved in a single sqlite database. It comes with source code management, bug tracker, web interface, wiki and timeline tools. I was a bit afraid by the filetree atomic commit (one file per method) to manage it without much headache with file based VCS. However fossil comes with a nice command: 'fossil addremove' to add/remove the changed files in the repo. So it went fine. So all in all, it is pretty nice if one want to move to a private souce code management system with very little requirement. Hilaire [1] http://www.fossil-scm.org -- Dr. Geo http://drgeo.eu http://google.com/+DrgeoEu

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#storeOn: question
by Werner Kassens Dec. 24, 2015

Dec. 24, 2015

Hi, SortedCollection>>storeOn: seems to have a little problem since it does not store sortBlock and the used super-method (in Collection) uses #add: which uses sortBlock and their default uses #<=, hence if the elements are not comparable via #<=, but need a special sortblock, one gets an error on retrieving that collection. of course i can circumvent that tiny problem by defining #<= or using fuel, but i wonder whether i should report that on the bugtracker? btw perhaps some other collections with instanceVariables which do not define their own #storeOn: (eg Heap) could also have eventually some problems. werner

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