January 2012 - Pharo-dev - lists.pharo.org

[Pharo-project] Accelerated PNG reader
by Hilaire Fernandes Jan. 5, 2012

Jan. 5, 2012

In the past, I remember about some Squeak improvment about the read speed of PNG. As far as I remember these optimisation went in Pharo. Is it the case? Hilaire -- Dr. Geo -- http://www.drgeo.eu

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[Pharo-project] stalls on jenkins
by Igor Stasenko Jan. 5, 2012

Jan. 5, 2012

i suspecting there are problems with network.. otherwise i have no idea what may cause stalls. many unrelated jobs are just stalling indefinitely long. maybe it is problem with sockets/semaphores? i currently trying to run 1.4 tests on my machine (just need to build a proper VM first) -- Best regards, Igor Stasenko.

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[Pharo-project] xpath queries
by Tudor Girba Jan. 5, 2012

Jan. 5, 2012

Hi, Is there some solution for supporting XPath queries in Pharo? Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow"

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[Pharo-project] Tomcat on Smalltalk/X
by Pavel Krivanek Jan. 5, 2012

Jan. 5, 2012

Hi, I would like to mention an interesting success by colleauges from Smalltalk/X. They are able to run Tomcat directly on their stX:libJava. https://swing.fit.cvut.cz/blog/libjava_tomcat Cheers, -- Pavel

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[Pharo-project] happy new year plus cogdroid news
by Alain Rastoul Jan. 4, 2012

Jan. 4, 2012

Hi Pharo guys, First, let me wish you a happy new year, health, and success in your projects. I also wanted to mention that I started the first day of this year trying Pharo on an android tablet (sony) with my develoment image (Pharo 1.3 with lot of stuff loaded : seaside, glorp, dbx, moose fuel and more) and it was really nice ... I even got a local seaside web server running on the tablet. ... 8-) IMHO a great opportunity for Pharo, the ONLY IDE running natively on Android (and mac, and linux and windows), a hyped new system, new media (back to the think pad?) ... There is still a lot of work to make Pharo a "good android citizen" , including (just thoughts): - several basic UI improvements , it is quite difficult to click on a corner to expand a window - keyboard improvements : no way to get alt or ctl key working so far - new theme for tablet (bigger fonts, bigger scrollbars etc) (I started to look at this) - new smalltalk tools : browser, finder inspector (I will try a small Glamourous browser ) - reduce cpu usage (suspend/awake pharo process ? ) - interface to android content providers (audio, video, calendar data etc) - ... and for sure lot more Many thanks to Andreas, Dimitri and other people who worked on it Best regards, Alain

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[Pharo-project] TWM warning while loading
by Sean P. DeNigris Jan. 4, 2012

Jan. 4, 2012

In Pharo 1.4 update: #14261: (ConfigurationOfTilingWindowManager project version: #bleedingEdge) load This package depends on the following classes: OBBrowser You must resolve these dependencies before you will be able to load these definitions: patchworkUIThemeColor Select Proceed to continue, or close this window to cancel the operation. -- View this message in context: http://forum.world.st/TWM-warning-while-loading-tp4257854p4257854.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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[Pharo-project] VM crash on update
by Milan Mimica Jan. 4, 2012

Jan. 4, 2012

Hello! I can quite easily crash the VM when updating pharo 1.4 image (Right click -> System -> Software Update). It crashes almost always. VM is Cog r2522. (gdb) bt #0 markAndTrace (oop=-7168) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:20994 #1 0x080602c2 in markAndTraceStackPage (thePage=0xffffaa8c) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:20887 #2 0x0806036d in markAndTraceStackPages (fullGCFlag=<value optimized out>) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:20777 #3 markAndTraceInterpreterOops (fullGCFlag=<value optimized out>) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:20648 #4 0x080746b1 in markPhase (fullGCFlag=-2139637670) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:21333 #5 0x08074d3e in incrementalGC () at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:17530 #6 0x080751ff in sufficientSpaceAfterGC (minFree=-2139637670) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:43517 #7 0x08078081 in checkForEventsMayContextSwitch (mayContextSwitch=1) at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:11257 #8 0x0807a6e0 in ceCheckForInterrupts () at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:10012 #9 0xb79886eb in ?? () #10 0x08082164 in initStackPagesAndInterpret () at /home/eliot/oscogvm/src/vm/gcc3x-cointerp.c:18088 #11 0x0805c49a in main (argc=Cannot access memory at address 0x8077b85a ) at /home/eliot/oscogvm/platforms/unix/vm/sqUnixMain.c:1769 -- Milan Mimica http://sparklet.sf.net

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[Pharo-project] roadmap
by Tudor Girba Jan. 4, 2012

Jan. 4, 2012

Hi, Lukas and Stefan (Marr) both raised the topic of the roadmap. From Lukas: > This leads me to the question: Did anybody ever sketch an architecture > of where Pharo should be heading to? I created a simplified one based > on my own understanding of the current proposals: http://bit.ly/vpnAf1 > (Google Docs). I think too that they have a point. Stef answered: > We should because we know where we want to go. I think that at the very least it is a communication issue. From outside it is unclear in what order should the efforts be spent. We have a ton of wishes, but not an understanding of where we want to get and how. Please, let's discuss this roadmap. Not listing wishes, but actionable points. I start with some questions: - beside RB and Announcements, are there other things that could be problematic - how do we approach the RB problem? Is it Ok to get it out of the image and have Jenkins build the Pharo distribution by loading the head? Cheers, Doru -- www.tudorgirba.com "Sometimes the best solution is not the best solution."

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[Pharo-project] glamour and pharo
by Tudor Girba Jan. 4, 2012

Jan. 4, 2012

Hi, Let's take this on the Pharo mailing list. I do think that Glamour should be considered for being part of the Pharo infrastructure. At least the Core and the basic Morphic rendering (i.e., without Mondrian, EyeSee and Magritte). And I also think your analysis is not accurate. Here is why (I apologize for the long list): 1. Glamour is quite well documented. There is a chapter describing it. There are a tone of examples documenting all sorts of features. There comments are not as good as they could be, but there are comments, and I can help documenting more. 2. It is quite well tested. This part can be improved, but the core has some 80% coverage. 3. I am not the only one that knows how to mingle with it. To give some examples, Jorge, Damien (Cassou) and Esteban helped fixing some intricate bugs directly in the core. Lukas built the first Seaside rendering quite fast. I would also mention that as a student, Andrei Chis took about 1 month of work to produce a working version of a Seaside rendering almost from scratch. So, maybe it's not that difficult. 4. The core is quite stable since more than 1 year. There were changes, but they were mostly related to bug fixes. 5. The main point of using this infrastructure is not to replace Morphic, but it is to limit the maintenance of the browsers, and to empower more people to build more browsers. For example, the Glamorous Inspector has less than 200 lines of code in total. This is really tiny for the amount of things it offers. And it is highly extensible, too. 6. It's actually not that large: the core has 36 classes, and if you consider all the other presentations, helper classes and specialized browsers (but without the rendering code), you get some 93 classes. 7. But, perhaps the most important part is that there have been literally hundreds of browsers built on top of it. Not all of them are useful now, but they were when they were built. And it seems that people can build one quite fast without much knowledge of the internals either. That is the whole point of this infrastructure. Esteban even used it for building commercial applications. I built a couple, too. The whole of Moose is now using this infrastructure, too. I am not saying that Glamour is perfect. There are quite a couple of things I would like to enhance (for example, the request ideas from Omnibrowser, or the wizard workflows from Merlin), but it has proved to be quite solid until now. So, before dismissing Glamour, perhaps it would be useful to actually look into it. Cheers, Doru > On Dec 31, 2011, at 1:00 PM, Tudor Girba wrote: > >> Hi Stef, >> >> You seem to say that it is bad that Glamour provides a good infrastructure that appeals to people. Maybe a better conclusion is that Glamour is something to be considered for the infrastructure of Pharo. > > Do you think so? > I do not think that we can base our infrastructure on something that only one person understand and can modify. > You will tell that this is the same for Morphic but this is not true. > > Stef > -- www.tudorgirba.com "Beauty is where we see it."

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[Pharo-project] Keyboard navigation and Settings browser
by Sean P. DeNigris Jan. 4, 2012

Jan. 4, 2012

A few observations inspired by using the Settings browser: * Is there a way to exclude a submorph from tabbing? In the settings browser, if you keep tabbing, you eventually focus on the statusView, which is a text editor, and you start inserting tabs into the text instead of continuing to navigate * a disabled text editor should pass keyboard focus on tab instead of doing nothing (the current behavior) * how do you say which is the default widget? just set the keyboard focus manually? This would be hard using the Polymorph workflow as in the examples/Pharocasts/etc. because: - you'd have to store a reference to the morph instance, so you can set the focus after the window has been opened (will not work otherwise). - tools like the Settings browser build the UI in an instance method, so now a morph would have to be stored in the model - yuck Dialog window has #defaultFocusMorph. Maybe this should be added to SystemWindow? * EditableDropListMorphs should pass keyboard focus to their contentMorph. Right now it takes two tabs to activate. The first one just highlights the EditableDropListMorph, but does not let you type into it What do you think? Sean p.s. this exploration started because I thought it'd be more useful if the Settings browser opened with the search field active -- View this message in context: http://forum.world.st/Keyboard-navigation-and-Settings-browser-tp4258311p42… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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