January 2015 - Pharo-users - lists.pharo.org

Extending GTSpotter
by Edward Povazan Jan. 10, 2015

Jan. 10, 2015

Hello, I am having a blast with GTSpotter - itâs the missing link for me, just one step to ask a question from Pharo. Keeps the flow going! Being new to the innards of Pharo, Iâve decided to try something. I would love documentation in GTSpotter. For example, I am interested in how packages are organized in Pharo. Cmd+Enter: âPackage' I get a list of package type classes. Cmd+Sh+Right Arrow. Now I see all the classes in the Classes category ... PackageInfo, PackageOrganizer, GRPackage, RPackageOrganizer - all interesting candidates in my exploration. But now I need to browse into each, look at the docs, then bring back GTSpotter, navigate to the last context with History, and repeat. More than one step. So I am going to try: - when showing all items in classes and methods categories, add a little [d] tag to the end of the item text to indicate if there is documentation for that item (class/instance or method docs) - Cmd+Sh+Right will display the docs. Is this doable within the current framework? If so, I am going to chip away on this. Thanks, -Ed

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Programmatically changing settings values
by Pablo Herrero Jan. 10, 2015

Jan. 10, 2015

Hey everyone, I would like to change some of the environment settings by code, specifically I would like to change the default compiler, from the menu you would do: World Menu >> System >> Settings >> Compiler >> Default Compiler , and then set you preference there. How can you do that programmatically? Thanks in advance!, Pablo

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Programmatically changing settings values
by Torsten Bergmann Jan. 9, 2015

Jan. 9, 2015

Pablo wrote >> I would like to change some of the environment settings by code Markus wrote: >The gobal compiler can be changed by SmalltalkImage compilerClass: Compiler There is an easy way how to find this out by yourself: - open World Menu >> System >> Settings and navigate to the setting - right click on a setting and choose "Browse" => this will open the Smalltalk browser on the method that defines the settings for the settings builder. In your case it should open AbstractCompiler(class)>>compilerSettingsOn: where the <systemsettings> pragma gives a hint to be used as a settings builder method. Here you will see that the target of the first setting definition is "SmalltalkImage" and the selector is #compilerClass. So you can use SmalltalkImage compilerClass to return the setting and SmalltalkImage compilerClass: MyCompiler to set it. See [1] for more (may be outdated) or better read the recent Pharo books, one includes a chapter on the settings framework. http://www.pharobyexample.org/ http://www.deepintopharo.com/ https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSucces… Bye T. [1] http://pharo.gemtalksystems.com/book/Tidbits/CustomizingPharo/DeclaringSett…

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[ANN] Rewritten EventRecorder (now based on Spec)
by Torsten Bergmann Jan. 9, 2015

Jan. 9, 2015

Hi, I've rewritten, refactored, commented the Event Recorder. The most visible feature is that the UI is now based on Spec to fit Pharo style. Currently it can record and replay events. Saving and loading of events as *.tape files is still missing and (depending on time) will be added as a next step. With this tool we have the ability to record and exchange actions done in an image to reproduce bugs. The tool can also be used for demo purposes. As it is already usable I made it available in the config browser of Pharo 4. Attached is a screenshot, Code is on STHub [1]. Have fun T. [1] http://smalltalkhub.com/#!/~TorstenBergmann/EventRecorder

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Casting a string as an instance variable.
by sergio_101 Jan. 9, 2015

Jan. 9, 2015

I would like to do something like: MyObject updateWIth: aDictionary. then, inside the object, treat the keys as instance variables, and the values as values.. and do something like: (key1 asInstanceVariable(??)): value1. this seems like it should be possible, but i am just not getting it. any ideas? thanks!

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Updating Pharo
by nacho Jan. 9, 2015

Jan. 9, 2015

Helo friends, When I update Pharo (World --> System --> Software Update) I see some progressbars that I don't undersand. what is exactly snapshoting? Also, suppose I add Bloc's Monticello repository, does a Software Update also update Bloc when an update is released? Thanks in advance Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Updating-Pharo-tp4798604.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Accommodation for Pharo Days
by Sven Van Caekenberghe Jan. 8, 2015

Jan. 8, 2015

Hi, We just booked our accommodation for the Pharo Days and we noticed that general availability of rooms was pretty low. So it is probably a good idea to book on time. To help the organisers, please register on time for the conference itself too. Sven http://pharodays2015.pharo.org

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ZnHTTPSTests>>#testTransfers fails
by Mark Rizun Jan. 7, 2015

Jan. 7, 2015

Hi, In case 14254 validation report says that ZnHTTPSTests>>#testTransfers fails. However when I merged slice and tested it, the test was green. Can I somehow solve this, or maybe it's something with system? Btw, just interesting, what this test is responsible for? Thanks, Mark -- View this message in context: http://forum.world.st/ZnHTTPSTests-testTransfers-fails-tp4798216.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Charting graphs
by Alexandre Bergel Jan. 7, 2015

Jan. 7, 2015

Hi! RTGraphBuilder went through major improvements. - min and max may be specified. - plugins to add some decoration (average line, standard deviation range, ticks lines, â¦) Here are some examples, with some examples, which should illustrate these points: Is obtained with: -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= | b ds | b := RTGrapherBuilder new. ds := RTDataSet new. ds points: (0 to: 100 by: 0.1). ds y: [ :x | (0.1 * x) sin ]. ds noDot. ds interaction popupText: 'sinus'. ds connectColor: Color blue. b add: ds. ds := RTDataSet new. ds points: (0 to: 100 by: 0.1). ds y: [ :x | (0.2 * x) cos * 2 ]. ds noDot. ds interaction popupText: 'cosinus'. ds connectColor: Color red. b add: ds. b minY: -4. b maxY: 4. b minX: -25. b build. -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= b := RTGrapherBuilder new. ds := RTStackedDataSet new. ds interaction popup. ds points: #(600 470 170 430 300). ds barShape width: 20; color: Color lightGreen. b add: ds. b axisX noLabel; noTick. b axisY noDecimals. b addPlugin: RTMeanDevVarPlugin new. b build -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= Another example: -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= b := RTGrapherBuilder new. b extent: 300 @ 200. 5 timesRepeat: [ ds := RTStackedDataSet new. ds noDot. ds points: ((1 to: 500) collect: [ :i | 50 atRandom - 25 ]) cumsum. ds connectColor: Color green. b add: ds. ]. b addPlugin: RTMeanDevVarPlugin new. b build. -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= -=-=-=-=-=-= The plugin framework exposes to a plugin all the necessary to define a whole range of decorations. For example, variable average lines, linear regression should be trivial to add... Happy new year! Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Pharo 4: Setting values from within an inspector
by Johan Fabry Jan. 5, 2015

Jan. 5, 2015

Hi all, there was a cool feature of inspectors in Pharo 3 that seems to be gone in 4. You could inspect an object, say a ValueHolder, click on a variable, e.g. value, and that would show the value of the value variable :-P in the right hand pane. OK nothing fundamentally changed in Pharo 4, that still happens. But, in Pharo 3, I could enter an expression in that pane, e.g. âabc', and hit cmd-s (accept). This would *change* the contents of value to the result of the evaluation, i.e. the string abc. I donât see how I can do that in Pharo 4, there is no menu item and no keyboard shortcut. I would really love to have that back, it can be very useful at times... ---> 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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