Squeak-dev April 2017

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48 participants
221 discussions

Graphing weather data
by tim Rowledge 30 Jun '17

30 Jun '17

Now that I have my Pi based weather station[1] in operation and mounted up on the peak of my garage roof ... … I need to do something with the data it provides. Sadly the code reading the sensors is in Python (for now!) but it sends it as MQTT packets to a mac-mini running the broker. I’m working with Craig on an MQTT client (very early state on http://www.squeaksource.com/@gWFeIvLx-rTHKE2R/Gtrt3pje) to read it but then what? Are there any current projects that will work in squeak5.1/spur that can draw nice graphs? What kind of graphs are good for weather data? Should there be chocolate? I guess I ought to store some amount of collected data so maybe it’s time I got to grips with Magma. I’m interested in all ideas that might lead somewhere fun with this. With those ESP8266 wi-fi enabled sorta-arduino things so cheap and easy to set up there must be a gazillion interesting things that could be monitored and analyzed and graphed and indeed actuated in response; let’s not forget that MQTT works both ways. How about a rain sensor sending a message that its raining (duh) which gets collected and turned into a message to your car to close the sunroof before the velvet seat covers (with painted portrait of Elvis, natch) get wet? Or a strain gauge on your security fence alerting you that something heavier than 20 pounds has climbed over so the remote gatling needs hotting up? tim [1] Pi model A+ with gpio attached interface board for rain bucket, wind speed/direction, outdoor temp/humidity, indoor temp, RTC and USB attached Ethernet interface to POE adaptor. WiFi wasn’t practical due to metal roof. Besides, POE means I can hard-reboot by pulling a plug in my server room :-) -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Strange OpCodes: IIB: Ignore Inquiry and Branch anyway

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Solarized dark theme: text selection colour a little hard to see
by Tony Garnock-Jones 30 Jun '17

30 Jun '17

In my image, I've replaced SolarizedTheme class >> #darkBackgroundHighlights with the following, since with the default I find it very difficult to spot which list item is selected, where the text selection is, etc etc: darkBackgroundHighlights ^ self base02 lighter (The original had just "^ self base02".) Does anyone else suffer similarly with the default? Should something like my change make it into the master image? Tony

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Mouse button tester question
by H. Hirzel 29 Jun '17

29 Jun '17

Hello, http://wiki.squeak.org/squeak/2332 'Mouse button tester' has m := Morph new. m on: #mouseDown send: #value: to:[:evt| evt redButtonPressed ifTrue:[m color: Color red]. evt yellowButtonPressed ifTrue:[m color: Color yellow]. evt blueButtonPressed ifTrue:[m color: Color blue] ]. m openInWorld. red and yellow button work, but the blue button brings up the halo as it is noted on the wiki page (tested with a three button mouse). I wonder if there is a way to make the change of the button to blue possible? --Hannes

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Rotary dial morphs
by tim Rowledge 29 Jun '17

29 Jun '17

I’ve factored out the barometer etc code from my weather station project and added http://www.squeaksource.com/RotaryDialMorphs for more general use. It seems to me there has to be some nice factoring of the style of the dial markings that could be applied, perhaps something like text styling and line styling that we see in drawing programs. Perhaps a student project even? Don’t forget that partial-rotary displays are also useful - think analogue VU meters (there’s an example included for that) and old car-dashboard ammeters etc. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Oxymorons: Good grief

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Re: [squeak-dev] missed commit mails
by Jakob Reschke 20 Jun '17

20 Jun '17

Hi, The Daily Commit Log mail has not appeared any more since Oct 20. Is this an intentional change or a regression? Best, Jakob

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Suggestion for 4.6 - Morphic Designer
by Germán Arduino 27 May '17

27 May '17

Hi Guys: Now that 4.5 is near to be released I want to make a suggestion for 4.6. I think that Squeak have a killer weapon a bit forgotten that should be included in the image, it's Morphic Designer [1] from Hasso Platner Institute [2]. I'm loading it fine from several version already [3] but I think that it should be part of the image in 4.6, for example in menu Tools. This would help to lower the barriers of Squeak to newbies (remember that one of the more criticized aspects from all times is the lack of an UI Builder). And Morphic Designer really rocks and should not be forgot, I think that need to be maintained as part of the official image. What think the community? [1] https://www.hpi.uni-potsdam.de/hirschfeld/trac/SqueakCommunityProjects/wiki… [2] https://www.hpi.uni-potsdam.de/hirschfeld/trac/SqueakCommunityProjects [3] http://germanarduino.blogspot.com.ar/2011/04/como-instalar-morphic-designer… -- Saludos / Regards, Germán Arduino www.arduinosoftware.com

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Re: [squeak-dev] The Inbox: System-jr.919.mcz
by Jakob Reschke 20 May '17

20 May '17

If there are no objections, will somebody merge this, please? 2017-04-11 19:23 GMT+02:00 Tobias Pape <Das.Linux(a)gmx.de>: > Looks good from here. > >> On 11.04.2017, at 18:56, Jakob Reschke <jakob.reschke(a)student.hpi.de> wrote: >> >> May anybody review this, please? Without this (or another fix) we >> cannot reliably store trait comments with FileTree/Cypress. We have to >> revert the comment removals all the time with Git. >> >> Best, >> Jakob >> >> 2017-02-12 16:52 GMT+01:00 commits(a)source.squeak.org >> <commits(a)source.squeak.org>: >>> A new version of System was added to project The Inbox: >>> http://source.squeak.org/inbox/System-jr.919.mcz >>> >>> ==================== Summary ==================== >>> >>> Name: System-jr.919 >>> Author: jr >>> Time: 12 February 2017, 4:10:59.703498 pm >>> UUID: 95683f1a-e60c-fe4e-a86a-62cc5b00a151 >>> Ancestors: System-cmm.918 >>> >>> add PseudoTrait and support for it in FilePackage >>> >>> main objective is to let Monticello read Trait comments from the st snapshot, which does not work when the trait definition is only treated as a doIt >>> >>> =============== Diff against System-cmm.918 =============== >>> >>> Item was changed: >>> ----- Method: FilePackage>>doIt: (in category 'change record types') ----- >>> doIt: chgRec >>> | string | >>> string := chgRec string. >>> ('*ubclass:*instanceVariableNames:*classVariableNames:*poolDictionaries:*category:*' >>> match: string) ifTrue:[^self classDefinition: string with: chgRec]. >>> + ('*named:*uses:*category:*' >>> + match: string) ifTrue:["Trait" ^ self traitDefinition: string with: chgRec]. >>> ('* class*instanceVariableNames:*' >>> match: string) ifTrue:[^self metaClassDefinition: string with: chgRec]. >>> ('* removeSelector: *' >>> match: string) ifTrue:[^self removedMethod: string with: chgRec]. >>> ('* comment:*' >>> match: string) ifTrue:[^self msgClassComment: string with: chgRec]. >>> ('* initialize' >>> match: string) ifTrue:[^self]. "Initialization is done based on class>>initialize" >>> ('''From *' >>> match: string) ifTrue:[^self possibleSystemSource: chgRec]. >>> doIts add: chgRec.! >>> >>> Item was added: >>> + ----- Method: FilePackage>>getBehavior:factory: (in category 'private') ----- >>> + getBehavior: name factory: pseudoBehaviorFactory >>> + | pseudoBehavior | >>> + (classes includesKey: name) ifTrue:[ >>> + ^classes at: name. >>> + ]. >>> + pseudoBehavior := pseudoBehaviorFactory new. >>> + pseudoBehavior name: name. >>> + classes at: name put: pseudoBehavior. >>> + ^pseudoBehavior.! >>> >>> Item was changed: >>> ----- Method: FilePackage>>getClass: (in category 'private') ----- >>> getClass: className >>> + ^ self getBehavior: className factory: PseudoClass! >>> - | pseudoClass | >>> - (classes includesKey: className) ifTrue:[ >>> - ^classes at: className. >>> - ]. >>> - pseudoClass := PseudoClass new. >>> - pseudoClass name: className. >>> - classes at: className put: pseudoClass. >>> - ^pseudoClass.! >>> >>> Item was added: >>> + ----- Method: FilePackage>>getTrait: (in category 'private') ----- >>> + getTrait: traitName >>> + ^ self getBehavior: traitName factory: PseudoTrait! >>> >>> Item was added: >>> + PseudoClass subclass: #PseudoTrait >>> + instanceVariableNames: '' >>> + classVariableNames: '' >>> + poolDictionaries: '' >>> + category: 'System-FilePackage'! >>> + >>> + !PseudoTrait commentStamp: 'jr 2/12/2017 15:50' prior: 0! >>> + Like a PseudoClass, but standing in for a Trait. Works identically to PseudoClass otherwise.! >>> >>> Item was added: >>> + ----- Method: PseudoTrait>>isTrait (in category 'testing') ----- >>> + isTrait >>> + ^ true! >>> >>> >> > >

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ANN: Planet Squeak & friends available for adoption
by Simon Michael 06 May '17

06 May '17

Hi Squeak friends! about ten years ago I set up the blog aggregators http://planet.squeak.org, http://planetes.squeak.org, http://planetjp.squeak.org, http://planetcroquet.squeak.org, and http://planetmisc.squeak.org, to give more visibility to Squeak-related blogging and to make it easier to follow with a feed reader. Blogging activity on the planet has dwindled (for ages it has seemed a small planet, ruled by the immortal god-emperor Torsten Bergmann - HAIL!). Of course there might be many new blogs to add, eg Pharo-related; I haven't been seeking them out. I still think a site like this concentrating blog feeds in one place is a good idea. To improve focus elsewhere, I'm offering this project (and others) for adoption. It's very low maintenance. You need a VPS or server where you can run cron jobs and the Planet Venus python software. You could also spend time adding new feeds, or merging such changes from others. The source files are in a darcs repo, which I can convert to git if you prefer. http://hub.darcs.net/simon/planet.squeak.org Please reply if you're able to take this on. I'll step down as maintainer at the end of this month, about two weeks from now. Best wishes, -Simon

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The Inbox: Collections-nice.753.mcz
by commits＠source.squeak.org 05 May '17

05 May '17

Nicolas Cellier uploaded a new version of Collections to project The Inbox: http://source.squeak.org/inbox/Collections-nice.753.mcz ==================== Summary ==================== Name: Collections-nice.753 Author: nice Time: 26 April 2017, 11:56:06.826092 pm UUID: 5f5b9a99-afa3-40f2-8fb5-a9a6183d10b5 Ancestors: Collections-nice.752 Nuke obsolete brace constructs used by compiler long long ago. Since encoder v3 (plus closures) there is a dedicated byte code for constructing those arrays dynamically, so the #braceWith: like messages are not sent for a while and won't be used anymore in foreseeable future. =============== Diff against Collections-nice.752 =============== Item was removed: - ----- Method: Array class>>braceWith: (in category 'brace support') ----- - braceWith: a - "This method is used in compilation of brace constructs. - It MUST NOT be deleted or altered." - - | array | - array := self new: 1. - array at: 1 put: a. - ^ array! Item was removed: - ----- Method: Array class>>braceWith:with: (in category 'brace support') ----- - braceWith: a with: b - "This method is used in compilation of brace constructs. - It MUST NOT be deleted or altered." - - | array | - array := self new: 2. - array at: 1 put: a. - array at: 2 put: b. - ^ array! Item was removed: - ----- Method: Array class>>braceWith:with:with: (in category 'brace support') ----- - braceWith: a with: b with: c - "This method is used in compilation of brace constructs. - It MUST NOT be deleted or altered." - - | array | - array := self new: 3. - array at: 1 put: a. - array at: 2 put: b. - array at: 3 put: c. - ^ array! Item was removed: - ----- Method: Array class>>braceWith:with:with:with: (in category 'brace support') ----- - braceWith: a with: b with: c with: d - "This method is used in compilation of brace constructs. - It MUST NOT be deleted or altered." - - | array | - array := self new: 4. - array at: 1 put: a. - array at: 2 put: b. - array at: 3 put: c. - array at: 4 put: d. - ^ array! Item was removed: - ----- Method: Array class>>braceWithNone (in category 'brace support') ----- - braceWithNone - "This method is used in compilation of brace constructs. - It MUST NOT be deleted or altered." - - ^ self new: 0!

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Is there a way to quit/exit Squeak with a return code that can be tested in a .so file?
by Louis LaBrunda 04 May '17

04 May '17

Hi Squeakers, Is there a way to quit/exit Squeak with a return code that can be tested in a .so file? Lou -- Louis LaBrunda Keystone Software Corp. SkypeMe callto://PhotonDemon

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