February 2011 - Pharo-users

[ANN] Aida/Web 6.2 Spring edition is out

by Janko MivÅ¡ek

Dear Smalltalkers, On the sunny side of the Alps we have a spring already, so let me bring a bit spring to you too with this new Aida release :) Fresh features from last month: - new event framework - unified JSON messaging (over WebSocket, Ajax, Comet) - pure JavaScript for Ajax, Prototype loaded only on demand - image based persistence - snapshot every hour - view active/logged sessions in Security - whitelisted IPs in Security - red 'browser not supported' warning on top of page And to repeat new features from Christmas beta: *Mobile* devices like smartpone and tablet support, with mobile device detection and special mobile CSS as addition to screen CSS, so that you can easily adapt your existing apps to mobile simply by overriding the existing CSS. *HTML5* support: Aida switches now to HTML5 by default and HTML5 specific features will be gradually added, WebSocket is there already, local storage and offline support comes next. *WebSocket* support for bidirectional communication between server and browser, as a replacement for Comet. WebSocket channel is now automatically open on the session with WebSocket capable browser. *JSON* messaging introduced to be gradually used as only message format in unified (Ajax or WebSocket) communication between server and browser *Widget forms" introduced, hierarchy of forms follow the hierarchy of standalone widgets, each widget can Ajax submit its own form together with subforms in subwidgets. There is now a continuously built One-click Pharo image (with new Aida preloaded and running) available via Download now button on http://wwww.aidaweb.si/download.html (thanks Pharo guys!). 6.2 is released on Squeak/Pharo and VisualWorks and it will be also avaiable on the soon to be released VisualWorks 7.8 CD. Release notes with most important new features highlighted are available at: http://www.aidaweb.si/release-notes-6.2 . Happy web smalltalking with new Aida! Janko -- Janko MivÅ¡ek AIDA/Web Smalltalk Web Application Server http://www.aidaweb.si

Feb. 11, 2011

Re: [Pharo-users] DateAndTime and nanos

by Denis Kudriashov

Hello, There is fix in google project for this. Try search it. Now it is not integrated to pharo. 2011/2/11 Norbert Hartl <norbert(a)hartl.name> > I'm trying to find out how to get a date in iso8601 and a precision more > fine grained than seconds. But looking at the time based classes I didn't > find anything useful. The nanos value seems to be also zero. And the > milliSecondClock seems only be useful to measure durations. > > What can I use to get this achieved? > > Norbert >

Feb. 11, 2011

DateAndTime and nanos

by Norbert Hartl

I'm trying to find out how to get a date in iso8601 and a precision more fine grained than seconds. But looking at the time based classes I didn't find anything useful. The nanos value seems to be also zero. And the milliSecondClock seems only be useful to measure durations. What can I use to get this achieved? Norbert

Feb. 11, 2011

Re: [Pharo-users] windows/flaps not responding

by Markus Schlager

On Tue, 8 Feb 2011, StÃ©phane Ducasse wrote: > > On Feb 8, 2011, at 12:12 AM, Markus Schlager wrote: > >> Hi all, >> >> I'm currently teaching smalltalk with pharo1.1 on Linux to pupils (10th grade). Some of them are experiencing the following problem: >> >> After reopening their pharo-image none of the windows left open before >> nor the window-flap at the bottom are responsive to mouse-clicks. >> Wherever you're clicking on, the world-menu shows up. You can open new >> system windows though. These will behave nicely. > > I saw this kind of behavior and I do not remember if it was fixed. > >> Is there any way to reactivate the old system-windows and the flap? > > Not from the top of my head. Today this happened again to one of my pupils. Hence I have such an image and changes available if this might be helpful. > Let us know if you have problem and tell us what you are teaching to them. It's a course on object-oriented modelling an programming. We did the introduction to modelling concepts with Etoys. If you're reading German you can find my materials here: http://www.lsh-marquartstein.de/schule/unterricht/faecher/informatik/unterr… And the ProfStefTutorial (still under construction): http://www.lsh-marquartstein.de/schule/unterricht/faecher/informatik/unterr… Markus

Feb. 9, 2011

Re: [Pharo-users] Pharocasts: GUI with Polymorph

by laurent laffont

On Tue, Feb 8, 2011 at 11:34 PM, Jeff Gray <jeff(a)rogerthedog.com> wrote: > > Thanks - that's very informative. Especially interesting for me. > Firstly I've been playing around with a similar example and was at least on > the right track, though my several hours have only yielded half the > solution > so far :-) > Secondly, and much more importantly, it has given me a bit of an insight > into how real smalltalk developers work. I had never really understood the > productivity gains that this environment can give you over and above all > the > other IDEs for other languages that I have used previously. > Seeing the debugger being used to dynamically create stuff as you need it > was a revelation :-) > Cool ! Laurent > -- > View this message in context: > http://forum.world.st/Pharocasts-GUI-with-Polymorph-tp3257888p3280217.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Feb. 9, 2011

Re: [Pharo-users] Pharocasts: GUI with Polymorph

by Jeff Gray

Thanks - that's very informative. Especially interesting for me. Firstly I've been playing around with a similar example and was at least on the right track, though my several hours have only yielded half the solution so far :-) Secondly, and much more importantly, it has given me a bit of an insight into how real smalltalk developers work. I had never really understood the productivity gains that this environment can give you over and above all the other IDEs for other languages that I have used previously. Seeing the debugger being used to dynamically create stuff as you need it was a revelation :-) -- View this message in context: http://forum.world.st/Pharocasts-GUI-with-Polymorph-tp3257888p3280217.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 8, 2011

Re: [Pharo-users] windows/flaps not responding

by StÃ©phane Ducasse

On Feb 8, 2011, at 12:12 AM, Markus Schlager wrote: > Hi all, > > I'm currently teaching smalltalk with pharo1.1 on Linux to pupils (10th grade). Some of them are experiencing the following problem: > > After reopening their pharo-image none of the windows left open before nor the window-flap at the bottom are responsive to mouse-clicks. Wherever you're clicking on, the world-menu shows up. You can open new system windows though. These will behave nicely. I saw this kind of behavior and I do not remember if it was fixed. > Is there any way to reactivate the old system-windows and the flap? Not from the top of my head. Let us know if you have problem and tell us what you are teaching to them. I have some extra material that I did not publish from my bot inc book. If you want I can send it to you. > Unfortunately I discarded the buggy images. > > Essentially the pupils had been reading ProfStef-Tutorials and some workspaces and browsers opened. > > Markus >

Feb. 8, 2011

windows/flaps not responding

by Markus Schlager

Hi all, I'm currently teaching smalltalk with pharo1.1 on Linux to pupils (10th grade). Some of them are experiencing the following problem: After reopening their pharo-image none of the windows left open before nor the window-flap at the bottom are responsive to mouse-clicks. Wherever you're clicking on, the world-menu shows up. You can open new system windows though. These will behave nicely. Is there any way to reactivate the old system-windows and the flap? Unfortunately I discarded the buggy images. Essentially the pupils had been reading ProfStef-Tutorials and some workspaces and browsers opened. Markus

Feb. 7, 2011

Re: [Pharo-users] [Pharo-project] [ANN] JNIPort 2.0 for VisualWorks, Pharo and Squeak

by Luc Fabresse

Hi Joachim, JNIPort sounds really great and I will test it. It is really great to have these kind of bindings. For your Alien problem on Cog, I also experienced some troubles with the library path. So I am pretty sure that the problem is on the Cog side. Perhaps the Alien plugin compiled in Cog. I would like to do more investigations on that. #Luc 2011/2/5 Joachim Geidel <joachim.geidel(a)onlinehome.de> > Am 05.02.11 18:11 schrieb Tudor Girba: > > What are the impediments of getting it to work with Cog on Pharo? > > JNIPort relies on Alien, and I have not yet found a Cog VM working with > Alien and JNIPort. > > I tried Squeak 5.8b12 for Mac OS X which identifies itself as Cog, but it > crashes when you just evaluate "LibCLibrary uniqueInstance". Apparently > this > VM version doesn't work with Alien. > > Eliot's latest Cog build for Mac OS X at > http://www.mirandabanda.org/files/Cog/VM/VM.r2349/ is able to load libc. > When I try to use JNIPort, it can't find the library libjvm.dylib when I > create a symbolic link to it in the working directory. When I create a > symbolic link in the subdirectory Cog.app/Contents/Resources, it is able to > load the library, but the VM crashes with a bus error when I try to call > the > first function of the library. I currently have no idea what causes the > error. As the same code runs without problems on a Squeak VM, I don't think > that the problem is in the JNIPort code, but I may be wrong. > > So, no JNIPort on Cog for now. This may change soon, of course. > > Regards, > Joachim Geidel > > > >

Feb. 5, 2011

Re: [Pharo-users] [Pharo-project] [ANN] JNIPort 2.0 for VisualWorks, Pharo and Squeak

by Joachim Geidel

Am 05.02.11 18:11 schrieb Tudor Girba: > What are the impediments of getting it to work with Cog on Pharo? JNIPort relies on Alien, and I have not yet found a Cog VM working with Alien and JNIPort. I tried Squeak 5.8b12 for Mac OS X which identifies itself as Cog, but it crashes when you just evaluate "LibCLibrary uniqueInstance". Apparently this VM version doesn't work with Alien. Eliot's latest Cog build for Mac OS X at http://www.mirandabanda.org/files/Cog/VM/VM.r2349/ is able to load libc. When I try to use JNIPort, it can't find the library libjvm.dylib when I create a symbolic link to it in the working directory. When I create a symbolic link in the subdirectory Cog.app/Contents/Resources, it is able to load the library, but the VM crashes with a bus error when I try to call the first function of the library. I currently have no idea what causes the error. As the same code runs without problems on a Squeak VM, I don't think that the problem is in the JNIPort code, but I may be wrong. So, no JNIPort on Cog for now. This may change soon, of course. Regards, Joachim Geidel

Feb. 5, 2011