May 2018 - Pharo-users - lists.pharo.org

Code completion in Pharo?
by andreo May 26, 2018

May 26, 2018

Dear Pharoers, I'm just starting out with Pharo 6.1, and I'm trying to use code completion to interactively explore various objects and their messages. However, I'm having difficulties doing this efficiently - I think I must be missing something obvious, and I hope you can point me in the right direction. For instance, let's say I have the below in Playground: 'some text' asMorph and I would like to display the morph object as a window, but I don't know the exact message name, or whether such a message exists at all. If I type "Window", then the completion popup will show a long list of matching messages, but won't show their documentation or argument names, so it will be difficult to know exactly what these messages do. I can see that one can do "Do it and go" on an expression and then browse the available messages in Meta, but maybe there is simpler/faster way? How would an experienced Pharo user typically go about discovering the right messages in such situations? Best regards, Andrzej -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Serving files with ZnServer
by Hilaire May 26, 2018

May 26, 2018

Hi, On P7, I try to server files with ZnServer, but got trouble: server := ZnServer startDefaultOn: 9595. server delegate: ( ZnStaticFileServerDelegate new Â Â Â directory: '/home/hilaire' asFileReference ; Â Â Â prefixFromString: 'files'; Â Â Â yourself). server logToTranscript. server start. The browser pointed at http://localhost:9595/files/ only print: Not Found /files/ The log reflects the not found: 2018-05-26 10:21:06 378 128292 Started ZnManagingMultiThreadedServer HTTP port 9595 2018-05-26 10:21:10 379 552905 Connection Accepted 127.0.0.1 2018-05-26 10:21:10 380 552905 Connection Accepted 127.0.0.1 2018-05-26 10:21:10 381 990536 Request Read a ZnRequest(GET /files/) 25ms 2018-05-26 10:21:10 382 990536 Request Handled a ZnRequest(GET /files/) 4ms 2018-05-26 10:21:10 383 990536 Response Written a ZnResponse(404 Not Found text/plain;charset=utf-8 19B) 2ms 2018-05-26 10:21:10 384 990536 GET /files/ 404 19B 6ms Any idea? Hilaire -- Dr. Geo http://drgeo.eu

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feenk log
by Tudor Girba May 25, 2018

May 25, 2018

Hi, We were a bit silent the last couple of months. Quite a bit happened in the meantime, so here is a summary (for more fine grained announcements, you can follow us on Twitter): ---- Bloc ---- - Scrolling. We finally have a good scrolling support: https://twitter.com/feenkcom/status/991690465224331264 This might sound like a trivial feature, but it turns out it is not. We had a bug that forced us to rethink the support quite deeply in order to be able to debug it. To do this, we now can simulate time in Bloc, which is really cool: https://twitter.com/feenkcom/status/989797367523233797 https://twitter.com/feenkcom/status/988753142299938817 (as a side note, the bug we fought with was the last - Pannable element is a combination of a scrollable element with a scalable element, and it offers the possibility either to zoom in/out + scroll, or to fit screen and resize when the parent resizes. - PDF, SVG, PNG, JPG export (based on the underlying Moz2D support): https://twitter.com/feenkcom/status/976580153802358786 https://twitter.com/feenkcom/status/976578060429484032 - Better curve support: https://twitter.com/feenkcom/status/990967109193781249 https://twitter.com/feenkcom/status/990971530615107584 - Better debugging support for understanding bounds: https://twitter.com/feenkcom/status/989138457288167424 ---- Brick ---- - We now have simple list and columned list widgets. The list is both fast and scalable and supports rows of variable heights: https://twitter.com/feenkcom/status/984744251920658432 https://twitter.com/feenkcom/status/984143821192744961 - Basic tab widget: https://twitter.com/feenkcom/status/974420432240685062 - Looks: a mechanism for specifying element-specific composition and interaction. ---- GT ---- - Documenter saw some major improvements. Just a reminder, Documenter is the tool that enables live programming and previews directly within Pillar documents. We now have a capability similar to notebooks like Jupyter: https://twitter.com/feenkcom/status/996310432225820672 We use it extensively to document our code. For example, here is a tutorial about playing with looks in Bloc: https://twitter.com/feenkcom/status/973899862482866176 And we can also express whole tutorials based on Epicea: https://twitter.com/feenkcom/status/999975333972541440 - Diagrammer. We now have better editing support for detailed things such as arrow head: https://twitter.com/feenkcom/status/976341449267531776 While Diagrammer is apparently a tool for diagrams, it has a rather generic design that can be utilized for all sorts of use cases. For example, one side effect is that now all elements can be visually edited: https://twitter.com/feenkcom/status/982656456968241152 - Mondrian: Using the new pannable element, we can now zoom in/out and scroll, and we can also set element to fit screen. We can also drag elements around. - Inspector: we now have an initial support for multiple views associated with an object. The support is similar to the one from the current inspector. Have fun, The feenk team -- www.tudorgirba.com www.feenk.com "What is more important: To be happy, or to make happy?"

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BlueInk Pretty Printer Array Formatting
by Evan Donahue May 25, 2018

May 25, 2018

Hi, I've just discovered that I can change the auto-formatter settings and I'm trying to figure out how I can make array syntax behave nicely. If I write: a := {1. 2. 3. }. The formatter keeps it all on the same line. This is what I want. However, if one of those constants is a variable, as in: a := { 1. 2. b }. It breaks the whole array up across multiple lines, as shown, which quickly becomes unreadable for nested arrays. Is there some setting I can tweak to make it keep the array all on one line? Thanks, Evan

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pharo location include korean charactor then look is not good.
by peter yoo May 25, 2018

May 25, 2018

so.. application location include korean charactor then broken title string in pharo window. (of course ubuntu 18.04 with gnome env) broken title is "ë°ííë©´". it's ok? or where to report? look a attached file please. -- http://lookandwalk.com http://looknw.com | http://onionmixer.net peter yoo(Jonghwa Yoo). ROK

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im using pharo in wayland system.
by peter yoo May 25, 2018

May 25, 2018

hello! im new install ubuntu 18.04 LTS to my desktop. but pharo cannot run. look a attached png then know the problem. cannot using wirh wayland system now? maybe guess.... because freetype.... have a solution then help to me please. -- http://lookandwalk.com http://looknw.com | http://onionmixer.net peter yoo(Jonghwa Yoo). ROK

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Reverting changes in Iceberg
by Evan Donahue May 24, 2018

May 24, 2018

Hi, I was trying to merge changes from a collaborator from github into my local image and, through some flurry of menus I didn't quite comprehend, it seems to have blown away their changes and left me a commit ahead with all of their changes deleted. How can I revert back to their change, which I do see in my history, and continue from there without my erroneous most recent commit? Thanks, Evan

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Handling socket timed out
by Hilaire May 24, 2018

May 24, 2018

Hi, With this code, the ConnectionTimedOut exception is never handled: | socket data | socket := Socket newUDP. socket setPort: 51284. socket waitForDataFor: 5. data := ByteArray new: 100. [[socket receiveUDPDataInto: data] Â Â Â on: Error Â Â Â do: ['Catched error, closing socket' crLog. socket closeAndDestroy]] Â Â Â ensure: [ 'Closing socket' crLog. socket closeAndDestroy] Any reason it does not work? In Pharo I see several examples using ifCurtailed. Hilaire -- Dr. Geo http://drgeo.eu

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How to LAN feature
by Hilaire May 24, 2018

May 24, 2018

Hi, I am looking for advices on a feature I want to develop for Dr. Geo. The need takes place in a LAN, for example in a School computer lab. A teacher and students each run their own instance of Dr. Geo. I want the teacher to be able to share with her students some sketches. Then the students,from their Dr. Geo running instance, can browse and open the sketches shared by the teacher. The user scenario will be like this: - Teacher copies the sketches she wants to share with her students in her DrGeo.app/myShare folder. Then she activates the Dr. Geo share service (from the setting browser for example). - Students start their own instances of Dr. Geo. It automatically scans (in the background preferably) the LAN for any available LAN shares. When a student goes to File>open she can also browse and open the discovered shares. - Ideally students could also save their work on the teacher share. The constraints:Â there is no such things as fixed IP. So the scan is over a subnetwork range. Any advices, reference reading, traps to avoid? Thanks Hilaire -- Dr. Geo http://drgeo.eu

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Pharo 7 - New Iceberg feedback
by Tim Mackinnon May 24, 2018

May 24, 2018

Hi - last night we managed to explore the new contribution process as well as the new iceberg ui at the U.K. Smalltalk meetup last night. Not many had seen it before so it was a good test run. As an initial comment - we need to invest a small amount of time to get the right docs in places you expect them as not doing so undoes a lot of good work - the Pharo main site that points to old contribution docs (and doesnât reference the new ones) must be updated ASAP to keep energy high (we almost lost a few folks last night by going down the wrong path - fortunately Cyril piped up on Discord for me - phew). Armed with the right steps it was straightforward - much easier than the older slices mechanism (that I never was comfortable with) - so HUGE thanks for that everyone! As we worked through it, the more git seasoned folks were confused why git status in a terminal wasnât really showing the same info as iceberg (Iâll put this in a separate thread to discuss, as itâs an interesting thought which Iâm sure has lively discussion). Anyway - the new UI does take some getting used to (personally I liked the compactness of the original Iceberg and its tabs), but when you understand what the different windows show you - I think it makes sense (and hopefully is more stable). We all missed having an obvious Diff mechanism - we later spotted that Commit does show this (Although possibly calling it âCommitâ¦â might make it more obvious that you have a chance to review changes and change your mind) - but knowing the size of your change and reviewing them without any danger of committing something is a useful feature (but maybe a 2.0 enhancement request?). One small tweak (which I would PR if I knew how to - would be to swap the status and branch columns in the Repository window to make the status clearer (the status gets lost as it sqashed against the normally much longer branch name). Its a simple change to #initializeRepositoryList but I guess Iceberg is in a different repository (and not in the instructions for contirbutions). We also noticed that if you try to use the âCreate Pull Requestâ menu item, you canât if you have 2FA enabled on Github (the recommended setting) as I guess that ssh protocol doesnât allow this with an ssh key? So I we should update the instructions to suggest either using the web ui - or - creating an app specific login (that doesnât use 2fa). - Iâll look at how to add that tweak and send a PR. Tim Sent from my iPhone

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