Squeak-dev February 2009

squeak-dev@lists.squeakfoundation.org

108 participants
131 discussions

Loading the OpenGL package (was: Games with Squeak)
by Diego Fernandez 17 Apr '09

17 Apr '09

On 10/13/06, Andreas Raab <andreas.raab(a)gmx.de> wrote: > Edgar J. De Cleene wrote: > > Andreas, as you see no package said " OpenGL" in the provided link. > > I think you should learn a little about using Squeaksource: "Versions" Ouch! I missed the package too, because in www.squeaksource.com usually there is one MC package per "Project". Anyway, I'm trying to load OpenGL-ar.36.mcz in Squeak 3.9 but I get: Syntax Error: glBindBufferARB(target, buffer) "This method was generated by OGLExtManager" <Argument expected ->apicall: void 'glBindBufferARB' (long ulong)> Any clue on how to solve this error? (It looks that it's created with a "special" compiler) And another question... As I wrote in the previous mail I've started to do some SDL bindings. But I think that maybe it's a waste of time, since today nearly all machines have OpenGL, and Squeak already has objects to deal with sound and joysticks.... so instead of using SDL for 2D graphics is better to use OpenGL for the same thing, what do yo thing about that? Cheers, Diego

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DebuggerUnwindBug>>testUnwindDebuggerWithStep
by Norbert Hartl 19 Mar '09

19 Mar '09

This test case appears at some point to fail. It succeeds in 3.9. I narrowed the problem to an update of 3.9.1 with update 7071 (Kernel-sd.151) which introduced it. The piece of code that triggers it is: Process>>terminate ... suspendedContext ifNotNil: [ "Figure out if we are terminating the process while waiting in Semaphore>>critical: In this case, pop the suspendedContext so that we leave the ensure: block inside Semaphore>>critical: without signaling the semaphore." (inSema == true and:[ suspendedContext method == ( Semaphore compiledMethodAt: #critical:) ]) ifTrue:[ suspendedContext := suspendedContext home. ]. ... I don't really understand the rationale behind doing this but it seems that it conflicts with the test assumption: DebuggerUnwindBug>>testUnwindDebuggerWithStep ... debugger doStep. "close debugger" top delete. "and see if unwind protection worked" self assert: sema isSignaled. As I don't really understand what happens and what should happen I would be glad to hear some words of advice. Norbert

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[ANN] SwaLint
by Tobias Pape 13 Mar '09

13 Mar '09

Dear Squeak community, we would like to announce the first release of SwaLint. SwaLint is a Squeak source code linting tool in the spirit of (C) Lint or SmallLint. It is intended as a developer aid to * test source code for stylistic coherence and * identify possible errors. It has been developed by Johannes Dyck, Christoph Neijenhuis, Tobias Pape, Nico Rehwaldt, and Arian Treffer during a course on software engineering held by the Software Architecture Group at the HPI, Potsdam, Germany. SwaLint is available from SqueakMap. Documentation can be found at http://swalint.netshed.de/. Tobias Pape on behalf of the SwaLint team

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How to profile a server image?
by Herbert König 11 Mar '09

11 Mar '09

Hi, say I have a web server with several users logged into different sites. What do i have to start a MessageTally on to see where the image spends its time? Thanks, Herbert

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Announcements?
by Andreas Raab 04 Mar '09

04 Mar '09

Folks - I've been seeing references to the Announcements framework popping up in various places. From what I've seen it looks like it might be similar to an idea that I had never fully developed in Tweak. Unfortunately, googling for anything + "announcements" is basically impossible (lesson: When you choose the name of a framework, think about teh google!). Does anyone have a canonical site for Announcements handy? Is there a Squeak implementation? Cheers, - Andreas

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Burn the Squeak Image! (Why I am running for board)
by Matthew Fulmer 03 Mar '09

03 Mar '09

Squeak is a growing community with diverse needs. We have long outgrown the monolithic image left to us by our founders, Dan Ingalls and company. The community has long been building its own images for many purposes, targeting many audiences: end-users, application developers, core developers, and researchers. Some examples: 2001: Squeakland Etoys 2002: Croquet 2003: Spoon, by Craig Latta. An experiment in very high modularity 2004: DPON, by Michael van der Gulik: A project to revive Henrik Godenryd's modularity framework abandoned in Squeak 3.3 2005: Morphic removal, by Edgar J. de Cleene 2006: Scratch, by MIT Media Lab: An end-user application for easily building and sharing animations, and teaching basic programming 2007: squeak-dev, by Damien Cassau. A distribution targeted toward application developers. 2008: Pharo, by Stephane Ducasse and others. A team focused on dramatically raising the code quality, usabily, and standards conformance of squeak overall. We need to burn from our minds the idea that there is one "official" squeak image that serves the needs of the whole community. It is a lie. Given that no "official image" can meet the needs of everybody, who should we target when building something official? We need to build things for those who would build better images themselves. Having many good images to choose from makes everybody happier. The only issue with the situation is that they are not always compatible. I believe this is the core issue that the board and the squeak release team needs to address. A standard "kernel image" that everyone builds off of has long been a pipe dream of nearly everyone in the community. I believe that such an image is not achievable in the short term; convincing all of the squeak distributions to adopt it would be nearly impossible to adopt incrementally. A more practical approach to that end is Standard Packages. A major issue we have currently is that bugs get fixed in one distribution, but never applied to another. However, if all distributions of squeak used the same version of a package, it would be very easy: fix the bug in the common package, and each distribution will eventually upgrade to it. I would like the board to do the following project, and I can manage it: By this time next year, every squeak distribution (squeak.org, Pharo, eToys, cobalt) will be running a standard version of the following three packages: - Collections - Streams - Compiler We will also fix and close all of the issues on mantis relating to these packages If we start this process and continue it, we will eventually have enough standard packages to build a kernel image, and everybody will already be running on it. I do not believe the board should do this to the exclusion of all else, just as one of several projects. I fully support Andreas's election platform: we should indeed start having both a stable and unstable release, both happening in parallel -- Matthew Fulmer -- http://mtfulmer.wordpress.com/

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Is there a shortcut for closing a windows (a classbbrowser, test runner, workspace, etc?
by Mariano Martinez Peck 02 Mar '09

02 Mar '09

Something like Ctrl + W or similar. It think this would be a really useful shortcut (at least for me haha). Thanks in advance.

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Passing array of float from Squeak to C
by Ang Beepeng 02 Mar '09

02 Mar '09

I am writing a plugin. How do I pass starray := {1.0. 4.5555555. 3.0001.}. to double * carray. Thanks. Ang Beepeng -- View this message in context: http://www.nabble.com/Passing-array-of-float-from-Squeak-to-C-tp22166581p22… Sent from the Squeak - Dev mailing list archive at Nabble.com.

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Squeak leadership team meeting notes for 2009-02-19
by Craig Latta 02 Mar '09

02 Mar '09

Hi-- Please contact me, directly or in this thread, with questions about the team or any of its meetings. - Attending on 2009-02-19 were Bert, Craig, Edgar, Giovanni, Igor, Randal, and Yoshiki (everyone). - Randal reports no change in status for the web team's captcha project (to enable contact between the community and the leadership team via the website, without spam). He'll ping them again. - Craig describes recent Spoon (Squeak 5) development. He's duplicating editions from a headful history memory in a the minimal memory, thereby turning the latter into a headless history memory (see [1] for design terms). Then he'll have the pair of artifacts that form the next Spoon system: a minimal memory and a minimal history memory that manages changes. Craig's available time is reduced due to paid work. - Randal and Craig describe a recent email conversation they had with Bradley Kuhn and Karen Sandler from the Software Freedom Conservancy (president and legal counsel, respectively). Randal asked for more detail from the Conservancy about how to handle the significant code contributions for which we weren't able to obtain a license (as compiled by Matthew Fulmer). Bradley is setting up a time for a conference call. thanks, -C

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Morphic, Balloon, Scrollbar
by Bergel, Alexandre 01 Mar '09

01 Mar '09

Dear All, I know some of you are morphic expert :-) I am still on the quest to make Mondrian usuable in Squeak. The situation is the following: I have a window having scrollbar, and I am trying to render (using Balloon) on a canvas bigger than what the window can actually display. Balloon seems to not be aware of the part of the canvas being actually displayed. It simply try to render everything. Is my guess right? Can anyone confirm please? Is there a way to turn this on? Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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