July 2020 - Pharo-users - lists.pharo.org

Pharo-Mars on Ubuntu
by kmo Aug. 3, 2020

Aug. 3, 2020

I've just tried to get pharo-mars working on xubuntu 20.04. But it tells me it cannot find the GTK3 library. But the library is present here: /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 I thought this was supposed to be the correct place. Should I be putting a symbolic link somewhere? -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Text-Editing UI
by Alex Landraitis Aug. 2, 2020

Aug. 2, 2020

Hello. I would like to modify the text-editing UI in Pharo to add some affordances Iâm accustomed to from MacOS. Specifically, right now command(a.k.a. meta)-left/right-arrow moves one word left/right in Pharo, whereas on MacOS this is done with the option(a.k.a. alt)-key, and command-left/right-arrow moves to the start/end of the current visual line. Another MacOS convention I use a lot and would like in Pharo is triple-click to select a whole paragraph. And if I can implement that, I would also like to disable the corresponding Pharo convention (double click at the start or end of the paragraph). Some smaller things that Iâm also not used to: When moving the text cursor one word at a time, Pharo treats white space as words, whereas MacOS skips over white space. Conversely, when double-clicking to select a whole word, MacOS treats white space between words like a word, whereas Pharo selects the adjacent word. So anyway, Iâm wondering what I would have to modify to customize these UI conventions. I didnât see anything relevant in the settings browser. (There was a "Skip over white spaceâ option under "Text Editing," but it didnât affect how the move-cursor-one-word-at-a-time keystrokes work, so I donât know what it does.) Does anyone have any pointers on where these behaviors are encoded in the system? Or if someone has already posted a package for customizing this sort of thing? Alex Landraitis

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Re: [Pharo-users] Working directory and image directory
by Russ Whaley Aug. 2, 2020

Aug. 2, 2020

I find the same anomalies in V9 for MacOS for workingDirectory pointing to root. I had to create a configuration system so I could effectively manage locations instead of using workingDirectory references. Other anomalies... when attempting to type in a (super) class in class creation - each keystroke launches debugger... same when setting up iceberg/github - typing in a package/folder name launches debugger with each keystroke... annoying, but I can get through it. Oh, this also seems to happen whenever I'm typing 'thisContext'. This all seems related to the type-ahead facility. Also a few observable issues with transmitTo: / sorting with Spec2 in V9... looks like when a column sorting issue was fixed it blew up transmitTo: ... -- sort - now sorts the pane but doesn't appropriately convey through the transmitTo: to the next pane - sometimes crashes, sometimes just doesn't display correct data... unusable, had to put this project on hold. I've asked here before how to submit a bug report - but didn't get a response (my posts are probably too benign for the experts, lol). If you know how to submit a bug report, I'd appreciate a (very) small primer or point me to a link. Thanks! Russ On Fri, Jul 31, 2020 at 6:29 AM Davide Varvello via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Hi > > Isn't it weird this behavior for the community? Should I open a bug? > Cheers > Davide > > > Pharo Smalltalk Users mailing list wrote > > Hi Guys, > > As I already described here: > > > http://forum.world.st/Fuel-FLSerializer-tests-are-not-working-pharo-8-td512… > > there is something weird on Pharo 8 (on Mac) because I'm running an image > > that is in the same directory of the Pharo.app but "FileLocator > > workingDirectory" give me the root directory. > > > > I expected the same directory where there is Pharo.app > > Cheers > > Davide > > > > > > > > -- > > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > -- Russ Whaley whaley.russ(a)gmail.com

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Re: [Pharo-users] Class side vs instance side (variables and methods)
by Esteban Maringolo Aug. 2, 2020

Aug. 2, 2020

Hi, The "class vs instance" side is one of the most confusing things for newcomers, I remember struggling with it when I learnt Smalltalk (and also was a novice in OOP). It helps you thinking it this way: the instance side is everything that will affect all instances of such class, and you can think the "class side" as what affect the factory for these instances (the sole instance of the class). E.g. let's say you have a "Dog". Dog instances will have a #bark method, and maybe a "color" property (via an instance variable). So when you do: dog1 := Dog new. dog1 color: Color white. dog2 := Dog new. dog2 color: Color black. You have two instances of Dog, and each one with its own color. Both understand the #bark message. But the Dog (capitalized) there, references the Dog class itself (aka "the class side" of Dog) and #new is a method of the "class side" of Dog. So if you implement a #newWhite method in the "class side" of Dog, it would be something like this. Dog class>>newWhite "Returns a new white instance of receiver." ^self new color: Color white In this method the "self new" refers to the class itself, not to the "instance" of the dog, but the returned object of "new" is an instance, and there the #color: message is sent to the instance of Dog. I hope this explanation helps, the meta relations involved in this are more complex than what I explained, but I hope this helps you get started. Regards! Esteban A. Maringolo On Tue, Jul 28, 2020 at 8:35 PM G B via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > Being new not only to Smalltalk, but OOP in general, I think I finally am understanding things. One area I am still unsure about is the class side versus the instance side. Does one usually use the class side when they want those inherited in every subclass, which frees one from having to declare them in every instance? > > TIA for reading my silly questions.

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smalltalkhub down
by PAUL DEBRUICKER Aug. 2, 2020

Aug. 2, 2020

https://downforeveryoneorjustme.com/smalltalkhub.com

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About some stuff to know if I launch new project to build Graphical User Interface for a database...
by Patrick Gelin Aug. 2, 2020

Aug. 2, 2020

Hi, I'm testing pharo and I would like to know about some things I can't yet really get with documentation : 1. I was asking myself about delivries for (no pharo) end users. I don't want end user use pharo launcher and look at image to load it. I saw article about to build standalone executable but it was for website into a serveur. What about standalone application with graphical interface ? 2. What differences between each smalltalk implementations ? What about Gnu Smalltalk, Smalltalk/X, VisualWork or Pharo ? Do you know a functionnal benchmark web page ? 3. What about standard about pharo language and libraries ? It look pretty difficult to get ride with smalltalk libraries... What do you recomand to know about libaries and tools to build a graphical application with embededÂ database application (Like firebird or EasySQL or PostGresql) ? Do I need an Object Mapping Framework ? Do you know one open source ? 4. What about database reporting (with subreports) framework/library ? 5. What about smart forms with Database ? 6. I'm programming into Linux Mint 9.3. Can I build delivry for Windows from Linux Mint ? Do I need to export/import my project into Windows in order to build Windows delivry ? Is'it possible to launch an executable from USB without no install ? 7. I would like to use events to program Graphical User Interfaces as database frontend. Do you know avanced book to explain semaphores, graphicals framework for cross delivries (Linux / Windows) ? Thank you in advance for your responses. -- /M Patrick GELIN 78 rue du Truchay 38690 BELMONT/

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Smalltalkhub delete date
by Paul DeBruicker Aug. 2, 2020

Aug. 2, 2020

Hi Would someone please add the date you're going to delete smalltalkhub to every page on Smalltalkhub? Thanks Paul

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Cmd+s in P8 not captured using Commander (works in P9) and SpTextPresenter
by HernÃ¡n Morales Durand Aug. 2, 2020

Aug. 2, 2020

I found a difference in shortcut handling between Pharo 8 and Pharo 9 which you can reproduce with the attached minimum working example. In the example, the halt in the Command's #execute method in P9 is sent but not in P8. SpComm2SaveTextMWE show. The problem seems to be Pharo 8 doesn't execute the KMKeymap callback configured for Cmd+s in SpKMCategoryBuilder>>visitCommand: while Pharo 9 does. In some way the only way to capture the Accept keypress is to modify the #buildShortcutsOn: method in RubTextEditor, but I'd like to avoid such approach. Is there any workaround to this? Cheers, HernÃ¡n

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Editing in Pharo Debugger
by Richard Kenneth Eng Aug. 2, 2020

Aug. 2, 2020

I notice that if I modify code in the Debugger, the editing pane does not provide any cue that the code has changed and needs to be saved. I believe in previous Pharo versions, an orange indicator appeared in the top right corner of the pane. Is this an oversight? Thanks.

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Re: Working directory and image directory
by Davide Varvello July 31, 2020

July 31, 2020

Hi Isn't it weird this behavior for the community? Should I open a bug? Cheers Davide Pharo Smalltalk Users mailing list wrote > Hi Guys, > As I already described here: > http://forum.world.st/Fuel-FLSerializer-tests-are-not-working-pharo-8-td512… > there is something weird on Pharo 8 (on Mac) because I'm running an image > that is in the same directory of the Pharo.app but "FileLocator > workingDirectory" give me the root directory. > > I expected the same directory where there is Pharo.app > Cheers > Davide > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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