June 2024 - Pharo-users - lists.pharo.org

EXIF / JPEG metadata
by Alistair Grant Nov. 30, 2025

Nov. 30, 2025

Hi Everyone, As far as I can tell, JPEGReadWriter in Pharo 7 doesn't read (or write) the image metadata, e.g. title, keywords, exposure time, etc. Is anyone aware of a package that does? Thanks! Alistair

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How can I remove an item on the main Pharo menu left over by a Roassal installation?
by vfclists June 28, 2024

June 28, 2024

After an attempt to install Roassal a persistent menu item has been to the top level of the image's menu. The menu label is `Load full version` and after searching the image it is coming from a `RSWorldMenu menu06LoadFullVersionOn` method which triggers the `RSWorldMenu loadFullVersion` event. How do I remove this element from the main menu object which I suspect might fix the problem? -- Frank Church

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This week (26/2024) on the Pharo Issue Tracker
by Marcus Denker June 28, 2024

June 28, 2024

# Fixes - Fix/Patch production build zip error #16806 https://github.com/pharo-project/pharo/pull/16806 - File Browser: Add "disable preview" #788 https://github.com/pharo-spec/NewTools/pull/788 - Add #restore to the SpWindowPresenter API #1563 https://github.com/pharo-spec/Spec/pull/1563 # Refactoring Engine / Rules - Migrate Refactoring for Generating printOn: method #16789 https://github.com/pharo-project/pharo/pull/16789 - Add indentation rules #16785 https://github.com/pharo-project/pharo/pull/16785 # Cleanup - Move #isRoot to fast table #16800 https://github.com/pharo-project/pharo/pull/16800 - Cut dependencies of Iceberg on UI #1829 https://github.com/pharo-vcs/iceberg/pull/1829 # Website - Update 2024-06-07-MoocOO.md: make clear that Mooc Enrollment stays open #76 https://github.com/pharo-project/pharo-website/pull/76

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Does the Pharo and Squeak IDEs have some kind of screen and keyboard macro system?
by vfclists June 27, 2024

June 27, 2024

Does Pharo and Squeak have some screen activity recording system that can record your keystrokes and mouse clicks and convert them to UI commands for playback? -- Frank Church

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[ANN] New MOOC "Advanced Object-Oriented Design"
by Marcus Denker June 26, 2024

June 26, 2024

[ANN] New MOOC "Advanced Object-Oriented Designâ ï¿¼ Get ready for a new #MOOC "Advanced Object-Oriented Design"! Understand the key mechanisms and the essence of OOD with the following topics: ï¿¼Understanding messages ï¿¼Test-Driven Design ï¿¼Hooks: support for evolution ï¿¼Objects: state and behavior ï¿¼Elementary design patterns ï¿¼Double dispatch ï¿¼Object creation ï¿¼Sharing objects ï¿¼Inversion of control ï¿¼About types Trailer: https://www.youtube.com/watch?v=9HMYS-mzDKQ&t=1s You will find: ï¿¼ Videos to explain main concepts & tools ï¿¼Quizzes and exercises that we've packaged together in companion exercises book ï¿¼Lectures with command transcripts & explanations ï¿¼ Course starts on June 17 ï¿¼ Enroll for free: https://urlr.me/M6hSr <https://pharo.us11.list-manage.com/track/click?u=6f667565c2569234585a7be77&…> ï¿¼ Pace: Self-Paced, 1-year access ï¿¼ English

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A test message to see if subscription is active.
by vfclists June 25, 2024

June 25, 2024

A test message to see if subscription is active. Confirmation took longer than I expected. -- Frank Church =======================

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Object-centric breakpoint experiment during ESUG'24
by Steven Costiou June 24, 2024

June 24, 2024

Dear community, First, I would like to thanks again all the participants to our experiment with object-centric breakpoints in Pharo. Many people participated, and we plan to present our results in an informal manner at ESUG. However, from the scientifical point of view it would strenghten our analysis if we had more participants. The more participants we have, the more we can trust our results and take enlightened decisions about how to further develop the object-centric debugger. Therefore, the experiment remains open until July 10th (included). If you're interested you can still do it, the instructions are here https://github.com/Pharo-XP-Tools/XPImageGeneration/tree/exp-ocd Many people also declined to participate because of a lack of time, which we totally understand. This is why we also propose to you, if time is an issue, to participate to the experiment during the first days of esug. We can find a calm room in which we can supervise the experiment and collect your data (reminder: once in our server the data is anonymized). Please let us know if you would be potentially interested to participate in such setting during ESUG. Thanks in advance, Steven and Valentin, EVREF team.

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Method comparison
by Davide Varvello June 21, 2024

June 21, 2024

In older Pharo versions it was possible to compare two methods selecting them via UI.Â I couldn't find this opportunity in Pharo10, Â so digging into the source code I found SpDiffPresenter, if you pass to it a couple of selectors it can compare them. Example: SpDiffPresenter new showOptions: true; leftText: (MyObject >> #firstSelector) sourceCode; rightText: (MyObject >> #secondSelector) sourceCode; contextClass: True; openÂ CheersDavide

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This week (25/2024) on the Pharo Issue Tracker
by Marcus Denker June 21, 2024

June 21, 2024

This week we backported some fixes to Pharo12, mostly related to high resolution rendering and Traits # Pharo 12 - Backport change of default value for setting #autoSetCanvasScaleFactor to true #16783 https://github.com/pharo-project/pharo/pull/16783 - Remove (wrong) primitive usage #16781 https://github.com/pharo-project/pharo/pull/16781 - [Backport] Port fixes on traits and metaclasses to Pharo 12 #16776 https://github.com/pharo-project/pharo/pull/16776 - Backport use of FormSet for #withCloseBox and #withPinBox on MenuTitleMorph #16774 https://github.com/pharo-project/pharo/pull/16774 - Backport selective removal of entries in #shrinkTo: on FreeTypeCache #16773 https://github.com/pharo-project/pharo/pull/16773 - [P12][Backport] fix #needRequestorScope of StDebuggerContextInteractionModel so that its bindings can be used when evaluating code in the debugger #784 https://github.com/pharo-spec/NewTools/pull/784 # VM - New harmonize rule #817 https://github.com/pharo-project/pharo-vm/pull/817 - Fixing warnings that are errors in newer versions of clang #813 https://github.com/pharo-project/pharo-vm/pull/813 - Adding an implementation of the aio.c using EPOLL in Linux. #805 https://github.com/pharo-project/pharo-vm/pull/805 - Ignoring EAGAIN in epoll_wait #818 https://github.com/pharo-project/pharo-vm/pull/818 # Features - Update roassal to v1.06f #16770 https://github.com/pharo-project/pharo/pull/16770 - Propose a DarkBlueTheme #16777 https://github.com/pharo-project/pharo/pull/16777 - Make setting pages less dense without comments for each setting #772 https://github.com/pharo-spec/NewTools/pull/772 # Fixes - test file dialogs returns the selected file #778 https://github.com/pharo-spec/NewTools/pull/778 - Revert "Use taskbar icon name for inspector and playground" #779 https://github.com/pharo-spec/NewTools/pull/779 - Fix issue when opening custom scope on calypso #783 https://github.com/pharo-spec/NewTools/pull/783 - Fix Open Playground menu item hanging the image #787 https://github.com/pharo-spec/NewTools/pull/787 - Add back old playground shortcut with deprecation #16788 https://github.com/pharo-project/pharo/pull/16788 - Remove (wrong) primitive usage #16780 https://github.com/pharo-project/pharo/pull/16780 - add missing accessor #1558 https://github.com/pharo-spec/Spec/pull/1558 - adding test to ensure it is possible to recompile code within a bloc with a dead home context twice #723 https://github.com/pharo-spec/NewTools/pull/723 # Refactoring Engine - Migrate Refactoring for Generating Equal and Hash Methods #16786 https://github.com/pharo-project/pharo/pull/16786 # Cleanup - Remove call to deprecated Author #83 https://github.com/pharo-vcs/libgit2-pharo-bindings/pull/83 - Remove deprecated classes and methods #758 https://github.com/pharo-spec/NewTools/pull/758 - Removing UIMnagaer dependencies from the debugger infrastructure #16015 https://github.com/pharo-project/pharo/pull/16015 - The debugger now delegate UI decisions to the backend provided by its application #667 https://github.com/pharo-spec/NewTools/pull/667 - Fix deprecated usage of StInspector #16769 https://github.com/pharo-project/pharo/pull/16769 - taskbarIcon moved to SystemWindow #16792 https://github.com/pharo-project/pharo/pull/16792 - Rename RBNode into ASTNode #16596 https://github.com/pharo-project/pharo/pull/16596

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Spec2 - Morph query & move window to another position
by Haroldo Stenger June 18, 2024

June 18, 2024

hi all there , I'm playing around with this example from the nice Spec book, which I try to get right for spec2. That's all right. I modify the example for having two counters, one bound to the class of the Surveys and then one for each survey. That was a good learning experience. Then I added a button to spawn further a Survey which participates of the class-bound count of votes. That's all right too. Then I started to write a method that given a Rectangle, and a number n, gives an array of n Points that are in the enclosed circle of the rectangle, more or less. Waht I want to achieve es that for each added Survey, its Spec2 - Morph window gets positioned in one of these points, but before rendering it, re position all the already existing Spec2 - Morphs Survey windows in the rest of the points of the array (being n the total number of Surveys after adding one). I'm facing two challenges: (a) getting the list of current positions of Spec2 - Morph Surveys already existing. (b) moving a Spec2 - Morph window to another position. I'm pretty stuck trying to make my way for this two goals, so any kind help will be really welcome. Yo can import the files into a Pharo12 image with the File manager, then Changelist Browser and selecting all the lines and "file in". thanks in advance ! Haroldo

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Pharo VM v10.2.1
by tesonep＠gmail.com June 14, 2024

June 14, 2024

Hi, there is a new release of the VM ## v10.2.1 * Adding the missing tty.c file in the packaging. by @tesonep in https://github.com/pharo-project/pharo-vm/pull/771 * Do not allow comparing objects of different types by @guillep in https://github.com/pharo-project/pharo-vm/pull/772 * Prepare release 10.2.1 by @guillep in https://github.com/pharo-project/pharo-vm/pull/773 * Constant conversion warning by @guillep in https://github.com/pharo-project/pharo-vm/pull/777 * Fix tautological-pointer-compare warnings by @guillep in https://github.com/pharo-project/pharo-vm/pull/775 * Removed Cogit>>#voidNSSendCache: by @jordanmontt in https://github.com/pharo-project/pharo-vm/pull/776 * Re-enable incompatible-function-pointer-types warning by @guillep in https://github.com/pharo-project/pharo-vm/pull/778 * Removed unused functions from the C written by hand by @jordanmontt in https://github.com/pharo-project/pharo-vm/pull/780 * Fix function pointer comparison warning by @guillep in https://github.com/pharo-project/pharo-vm/pull/783 * Fix -return-type warnings by @doste in https://github.com/pharo-project/pharo-vm/pull/781 * Fix shift-negative-value warning and reenable warning by @guillep in https://github.com/pharo-project/pharo-vm/pull/785 * Remove warnings c compiler by @PalumboN in https://github.com/pharo-project/pharo-vm/pull/789 * Remove StackInterpreter interruptPending instance variable by @jordanmontt in https://github.com/pharo-project/pharo-vm/pull/793 * Do not use asserta: in a statement by @guillep in https://github.com/pharo-project/pharo-vm/pull/788 * Bump to MacOS 11 and above by @guillep in https://github.com/pharo-project/pharo-vm/pull/792 * Moving pharo.signatures files for OSX Bundle to Resources folder by @tesonep in https://github.com/pharo-project/pharo-vm/pull/770 * Do not retain any selectors in CogAbstractInstruction by @RenaudFondeur in https://github.com/pharo-project/pharo-vm/pull/798 * remove warning because of type and unsigned shift issues by @RenaudFondeur in https://github.com/pharo-project/pharo-vm/pull/800 * add tests for type harmonization by @RenaudFondeur in https://github.com/pharo-project/pharo-vm/pull/807 * Primitive format by @doste in https://github.com/pharo-project/pharo-vm/pull/802 * Adding an implementation of the aio.c using EPOLL in Linux. by @tesonep in https://github.com/pharo-project/pharo-vm/pull/805 * Fixing warnings that are errors in newer versions of clang by @tesonep in https://github.com/pharo-project/pharo-vm/pull/813 ## New Contributors * @RenaudFondeur made their first contribution in https://github.com/pharo-project/pharo-vm/pull/798 **Full Changelog**: https://github.com/pharo-project/pharo-vm/compare/v10.2.0...v10.2.1 More Information: https://github.com/pharo-project/pharo-vm/releases/tag/v10.2.1 -- Pablo Tesone. tesonep(a)gmail.com

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This week (24/2024) on the Pharo Issue Tracker
by Marcus Denker June 14, 2024

June 14, 2024

# Pharo 12 - Fix Issue: Backport Pharo12: Wrong source for CompiledBlocks due to incorrect bytecode to AST nodes mapping #16756 https://github.com/pharo-project/pharo/pull/16756 # Improvemetns - Adds a simple MoveTo taskbar menu item #16544 https://github.com/pharo-project/pharo/pull/16544 - replace JPEGReadWriter by PluginBasedJPEGReadWriter and deprecate theâ¦ #16535 https://github.com/pharo-project/pharo/pull/16535 - return the result of ok action and simplify file selection #776 https://github.com/pharo-spec/NewTools/pull/776 - withWindowDo: should return the result of the block #1555 https://github.com/pharo-spec/Spec/pull/1555 - Update after selection in Color Picker #766 https://github.com/pharo-spec/NewTools/pull/766 - New dialog to select multiple items using checkboxes #1548 https://github.com/pharo-spec/Spec/pull/1548 # Fixes - fix preLoading.st #1557 https://github.com/pharo-spec/Spec/pull/1557 - fixing recompilation of bloc in the debugger with dead home context whose method has already been recompiled in the debugger before #16319 https://github.com/pharo-project/pharo/pull/16319 - Fix comparison of two Deprecation objects #16735 https://github.com/pharo-project/pharo/pull/16735 - Updated text to new shortcut #764 https://github.com/pharo-spec/NewTools/pull/764 # Tools - Added new subclass with unified view based on SpDiffPresenter #1452 https://github.com/pharo-spec/Spec/pull/1452 - Add StProtocolNameChooserPresenter #759 https://github.com/pharo-spec/NewTools/pull/759 - Spotter split case #773 https://github.com/pharo-spec/NewTools/pull/773 - Use new StProtocolNameChooserPresenter to replace morphic tool #16690 https://github.com/pharo-project/pharo/pull/16690 - Icon for debugger in the toolbar #16661 https://github.com/pharo-project/pharo/pull/16661 - ProfilerUI: Added a warning when trying to compile and the variables are not declared #741 https://github.com/pharo-spec/NewTools/pull/741 - Update playground shortcut #738 https://github.com/pharo-spec/NewTools/pull/738 # Cleanups - Remove deprecated code #1545 https://github.com/pharo-spec/Spec/pull/1545 - Remove references to SystemAnnouncer singleton #742 https://github.com/pharo-spec/NewTools/pull/742 - Move some debugger related code of Process to debugger packages #15799 https://github.com/pharo-project/pharo/pull/15799 - Moved pragma declaration to top of methods #16728 https://github.com/pharo-project/pharo/pull/16728 - Categorization rules tests #16767 https://github.com/pharo-project/pharo/pull/16767

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This week (23/2024) on the Pharo Issue Tracker
by Marcus Denker June 7, 2024

June 7, 2024

# Pharo 12 - Fix/Update Iceberg #16752 https://github.com/pharo-project/pharo/pull/16752 - 16733-Backport-Pharo12-DebugPoint-on-class-side-method-16682 #16734 https://github.com/pharo-project/pharo/pull/16734 - fix bad label before first progress event. #1551 https://github.com/pharo-spec/Spec/pull/1551 - Updating LibGit2 #1827 https://github.com/pharo-vcs/iceberg/pull/1827 # Features - Add newTenured allocation methods #16729 https://github.com/pharo-project/pharo/pull/16729 - Fix ZnBufferedWriteStream does not support #reset #16727 https://github.com/pharo-project/pharo/pull/16727 - Primitive format #802 https://github.com/pharo-project/pharo-vm/pull/802 # Fixes - fix bad label before first progress event. #1552 https://github.com/pharo-spec/Spec/pull/1552 - add missing code from P12 #763 https://github.com/pharo-spec/NewTools/pull/763 - 16495-Wrong-source-for-CompiledBlocks-due-to-incorrect-bytecode-to-AST-nodes-mapping #16664 https://github.com/pharo-project/pharo/pull/16664 - Calypso cmd-v method versions shortcut #16742 https://github.com/pharo-project/pharo/pull/16742 - Fix Random seed with float value #16738 https://github.com/pharo-project/pharo/pull/16738 # Refactoring Engine - Add subclass driver #16353 https://github.com/pharo-project/pharo/pull/16353 - Refactor: inline method cleaning #16745 https://github.com/pharo-project/pharo/pull/16745 # Rules - Add setting rules feature #16750 https://github.com/pharo-project/pharo/pull/16750 - Move rules matadatas to class side #16705 https://github.com/pharo-project/pharo/pull/16705 # ClassBuilder / Traits - Fix multiple bugs in metaclass management of ShiftClassBuilder #16722 https://github.com/pharo-project/pharo/pull/16722 - Fix bug causing classes to lose their traits. #16739 https://github.com/pharo-project/pharo/pull/16739 - Use #update:to: instead of #make: and #fillFor: #16746 https://github.com/pharo-project/pharo/pull/16746 # Cleanups - Remove deprecated aliases of P12 #16659 https://github.com/pharo-project/pharo/pull/16659

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Can the rewrite tool replace a single statement with multiple statements?
by Tim Mackinnon June 5, 2024

June 5, 2024

I've never really learned the rewrite tool but while waiting for changes to propagate through P12, I thought maybe I could use it to safely patch changes until there are official updates (and it was a good chance to get more familiar with it). I thought there was more documentation available for how it works (interested in any old articles - but the online help in P12 is ok - although it doesn't display in markdown - in fact give there is markdown support now - I am a bit confused what should appear more readable these days - and how to fix/contribute changes to help). This aside - I wanted to patch the SystemWindow>>taskbarButtonMenu: (and add my fix to move tabs to any position). I started writing the following search expression - the find the last call to #addToggle:... method call that has a literal referencing #canBeMovedRight - as I want to add my new menu item after it. e.g. moveSubmenu `@addToggle: `{ :node | node isLiteralNode and: [ node value = #canBeMovedToRight] } but I'm not sure my {} filter block is ever called, as the above matches both addToggle:... calls, and not the one I'm after? I don't understand this - any have ideas on the proper syntax for generic matching? Anyway - I decided that in my case there is only one - so I can match it explicitly and so I search on the full call: and I entered this: moveSubmenu addToggle: 'Move right' translated target: self selector: #taskbarMoveRight getStateSelector: nil enablementSelector: #canBeMovedToRight. Which matches exactly - then I want to replace the single statement with 2 statements e.g. moveSubmenu addToggle: 'Move right' translated target: self selector: #taskbarMoveRight getStateSelector: nil enablementSelector: #canBeMovedToRight. moveSubmenu addToggle: 'Move to' translated target: self selector: #taskbarMoveTo getStateSelector: nil. However this gives an error in the rewrite tool (actually it results in a zero change, that then gives an error for EpMonitor). But my question is - why can't you rewrite a single statement to multiple ones? I have noticed that in this case I can cascade the message send - and this then rewrites properly - so it looks like it wants to replace a single node with a single node. If I couldn't cascade - It seems I would have to rewrite with something like: [ "put multiple expressions here" ] value. This seems an odd choice - but am I missing something obvious? Do you have to do what I'm proposing in 2 steps - rewrite to a block (or some equivalent) and then a 2nd rewrite to simplify the expression (like a refactor step) - so its more provably correct? I'm just curious on this - as it seemed time to learn this properly? Tim

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Recent Pharo's seem to lose first keystroke when you swap to them to paste?
by Tim Mackinnon June 1, 2024

June 1, 2024

For a while I've noticed that every time I try and copy some text from a web browser or email and then paste it into pharo the first time it fails - and then thinking I didn't copy, I try it again and then realise that I have to paste twice - as the first one doesn't work. This didn't seem to do this in Pharo 9 (maybe 10) but its definitely the case in Pharo 11 and Pharo 12. This is on OSX (14.x) so I'm wondering if the same occurs in Windows or Linux or if its just my laptop? Its quite annoying and I'm wondering if it might be a side effect from the gradual UI changes in Pharo? I've looked in the issues tracker - but its a tricky thing to search for - and so I wanted to canvas experience and then will report it. Tim

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12 Month engineer position at Toulouse in Pharo
by stephane ducasse June 1, 2024

June 1, 2024

Hi people Can you distribute this job position around you? Yannick Chevalier has a position to develop a tool to detect abnomalies DeÌveloppement de lâoutil iCANt pour la deÌtection dâanomalies <mailto:yannick.chevalier@gmail.com> Who: yannick.chevalier(a)gmail.com <mailto:yannick.chevalier@gmail.com> Where: Toulouse Salary: 45 K Euros a more experienced dev could be hired for a shorter period and get a better salary. S. StÃ©phane Ducasse http://stephane.ducasse.free.fr 06 30 93 66 73 "If you knew today was your last day on earth, what would you do differently? ....ESPECIALLY if, by doing something different, today might not be your last day on earth.â Calvin & Hobbes

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