November 2013 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] The Second Coming of Java article

by Nicolas Cellier

Try to switch back to bitmap DejaVu font and I'm sure you'll notice a difference. 2013/11/26 phil(a)highoctane.be <phil(a)highoctane.be> > I downloaded ST/X this morning and looked around for a couple hours. > > Impressive system. And impressive clients list/activities etc. > <rant> > And wow, Claus is yet another individual with top notch computer chops... > Seems that this community has the highest density of high perf brains. I > feel humbled indeed. > </rant> > > What struck me was the speed. > > Pharo really needs a huge speedup on the UI front. I am using a top of the > line desktop system and still Pharo sometimes feels slow (some is due to > algorithms - like the finder tool taking ages for a lot of things, but some > is due to the UI system). > > This is not linked to the VM, as the MVC projects in Squeak are uber fast. > > Is the Text rewrite going to have an impact on this? > > On the front of interoperability, I personally have chosen to go the > RabbitMQ route, it allows me to wire all kinds of things together with some > room for scale. > > On the Java front itself, in the TCL community, we do have tclbend and > also a package to do the same thing as STX:LIBJAVA. Truth be told, there > hasn't been much traction in there. It works fine but that's it. > http://www2.tcl.tk/1313 - usage sample http://www2.tcl.tk/14919 > It also has fell behind in terms of keeping up with the latest versions of > the environment. > > In PHP, there is the Quercus and Caucho Resin Server that allows to run > PHP on top of the JVM and invoke Java from there. Some people run very fast > stuff on that, and benefiting from all JEE abilities (JMS, JTA, Clustering, > JAAS...) is really nice. http://www.caucho.com/resin-3.1/doc/quercus.xtp > > > Phil > > > > > On Tue, Nov 26, 2013 at 12:26 PM, Jan Vrany <jan.vrany(a)fit.cvut.cz> wrote: > >> On 26/11/13 10:40, Serge Stinckwich wrote: >> >>> On Tue, Nov 26, 2013 at 10:54 AM, Jan Vrany <jan.vrany(a)fit.cvut.cz> >>> wrote: >>> >>>> On 26/11/13 03:28, askoh wrote: >>>> >>>>> >>>>> Bravo Jan and your collaborators. You have done it. >>>>> >>>> >>>> >>>> Thanks. >>>> >>>> >>>>> Anything preventing STX:LIBJAVA from being used in production >>>>> environments? >>>>> >>>> >>>> >>>> Good question. STX:LIBJAVA is still a research phase. However, if >>>> everything >>>> goes fine, we might have first project using it for real >>>> in couple months. >>>> >>>> >>> What is important is also the licence. Do you use an open-source licence >>> ? >>> >> >> Strictly speaking - no. For various, historical reasons. >> >> The Smalltalk part STX:LIBJAVA support code is available under >> the same terms as Smalltalk/X itself [1]. >> >> The code of the VM is not publicly available for various reasons, >> though it is possible to get an access. Ask Claus Gittinger if >> you're interested in details. >> >> >>> Anything preventing Pharo and VisualWorks for using the technology also? >>>>> >>>>> Short answer: Time and money. >>>> The way we did it requires significant changes to the virtual machine >>>> (as we believe this is the only way to get a decent performance). >>>> Indeed, if >>>> somebody going to pay for it, everything's possible ;-) >>>> >>> >>> You should try to ask ESUG about financial support. >>> >>> >> Maybe I should. But frankly - how many people in this community are like >> "That would be great, I need this feature!" Raise hands. :-) >> >> Cheers, Jan >> >> [1] http://www.exept.de/cgi-bin/viewvc.cgi/stx/README?view=markup >> >> >> >

Nov. 26, 2013

Red Box of Doom when changing the Roassal Canvas of the Easle to Athens

by kilon alios

I get a MNU when I try to set Canvas in Easel (Roassal) to Athens. This is strange because I use also a very recent image and latest version from both Roassal and Athens at Win7 and I have no such problem. I am now on Macos 10.7 I had a similar problem when I tried to render text with Athens. Here is the stack. StrikeFont(Object)>>doesNotUnderstand: #glyphRendererOn: AthensCairoCanvas>>setFont: ROAthensCanvas>>drawString:at:font:color: ROLabel>>drawOn:for: in Block: [ :line | ... Array(SequenceableCollection)>>do: ROLabel(ROAbstractLabel)>>linesOf:do: ROLabel>>drawOn:for: ROLabel(ROShape)>>chainedDrawOn:for: ROBorder(ROShape)>>chainedDrawOn:for: ROBox(ROShape)>>chainedDrawOn:for: ROElement(ROAbstractComponent)>>drawOn: ROViewStack(ROView)>>drawElementsOn: in Block: [ :n | n drawOn: canvas ] OrderedCollection>>do: ROViewStack(ROView)>>elementsToRenderDo: in Block: [ :assoc | assoc value do: aBlock ] OrderedCollection>>do: ROViewStack(ROView)>>elementsToRenderDo: ROViewStack(ROView)>>drawElementsOn: ROViewStack>>drawOn: ROAthensMorph>>drawOn: in Block: [ :cs | ... AthensCairoSurface>>drawDuring: in Block: [ ... BlockClosure>>ensure: AthensCairoSurface>>drawDuring: ROAthensMorph>>drawOn: FormCanvas(Canvas)>>draw: FormCanvas(Canvas)>>drawMorph: ROAthensMorph(Morph)>>fullDrawOn: in Block: [ ... FormCanvas>>roundCornersOf:in:during: FormCanvas(Canvas)>>roundCornersOf:during: ROAthensMorph(Morph)>>fullDrawOn: in Block: [ ... BlockClosure>>on:do:

Nov. 26, 2013

Re: [Pharo-dev] Patches for Pharo packages you are maintaining

by btc＠openinworld.com

Nov. 26, 2013

Re: [Pharo-dev] Understanding Roassal

by btc＠openinworld.com

Nov. 26, 2013

Re: [Pharo-dev] SmalltalkHub changes

by Esteban A. Maringolo

2013/11/26 <btc(a)openinworld.com>: > Nicolas Petton wrote: >> >> Hi! >> >> Here's the list of changes for this release: >> >> - faster loading by serving pre-compiled css files > Very nice! Indeed it does now load much faster. I'd say 5 to 10 times > faster from where I sit in Australia. It used to take ~20sec to load smalltalkhub.less in the previous version, now the compiled css takes around ~500ms. So it is 40x speedup. Thanks Nicolas! Regards, Esteban A. Maringolo

Nov. 26, 2013

Re: [Pharo-dev] SmalltalkHub changes

by btc＠openinworld.com

Nicolas Petton wrote: > Hi! > > Here's the list of changes for this release: > > - faster loading by serving pre-compiled css files > Very nice! Indeed it does now load much faster. I'd say 5 to 10 times faster from where I sit in Australia. cheers -ben > - fix for adding team members > - Commit hooks are now fully working and configurable in the project > settings page > - Fix for the timeline events in the user's homepage > - Better diffs (it seems to still have issues) > > > Some words about the new infrastructure: > > - Smalltalkhub is now hosted by Inria > - The DB is backed up daily > - SmalltalkHub is now monitored and automatically restarted whenever > something wrong happens (with a crazy monkey that could kill the > process randomly during RMoD's office hours) > - Monitoring emails are now sent to RMoD > > Cheers, > Nico > > > >

Nov. 26, 2013

Re: [Pharo-dev] How to update Deep into Pharo Chapter

by Gabriel Cotelli

Done. Username: gcotelli On Tue, Nov 26, 2013 at 2:06 PM, Damien Cassou <damien.cassou(a)gmail.com>wrote: > On Tue, Nov 26, 2013 at 6:00 PM, Gabriel Cotelli <g.cotelli(a)gmail.com> > wrote: > > the account creation form asks me for "INRIA Research team" as mandatory. > > Should I put something like Pharo? Or is something more specific? > > > RMoD > > -- > Damien Cassou > http://damiencassou.seasidehosting.st > > "Success is the ability to go from one failure to another without > losing enthusiasm." > Winston Churchill > >

Nov. 26, 2013

Re: [Pharo-dev] Understanding Roassal

by kilon alios

Is your team open to external contributions as well ? I am still exploring 2 options a) to use Roassal as a way to learn Athens b) to use Roassal as a basis for my project I did not expect that you would take such a generic approach to graphics , but from what I see I cant find a reason why I should not be using Roassal. For the time being my whole focus is to create a Vector graphics editor, as you can imagine this means a designer for vector graphics which it could create a set of classes that could find their way back to Roassal. I dont want to reinvent the wheel and I really lke to coordinate effort with people with similar goals. On Tue, Nov 26, 2013 at 5:14 PM, Alexandre Bergel <alexandre.bergel(a)me.com>wrote: > It is indeed. > Athens offers a nice way to build path. Once this will be fully integrated > in Roassal, we will have a flying machine. > > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > On Nov 26, 2013, at 11:52 AM, kilon alios <kilon.alios(a)gmail.com> wrote: > > > yeap thank you , not only anti-aliasing works now but every look way > cooler, looks like Athens is quite an enhancement. > > > > > > On Tue, Nov 26, 2013 at 4:14 PM, Alexandre Bergel < > alexandre.bergel(a)me.com> wrote: > > Ah okay. Then, you need to load the package RoassalAthens from the > repository of Roassal. But Smalltalkhub is down right now. Here is a mcz: > > > https://dl.dropboxusercontent.com/u/31543901/TMP/RoassalAthens-AlexandreBer… > > > > Load this mcz file (e.g., drag and drop it in your Pharo window), then > execute "ROPlatform setCurrent: 'athens'. â and you should get antialiasing. > > > > Cheers, > > Alexandre > > -- > > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > > Alexandre Bergel http://www.bergel.eu > > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > > > On Nov 26, 2013, at 10:47 AM, kilon alios <kilon.alios(a)gmail.com> wrote: > > > > > ROPlatform setCurrent: 'athens'. > > > > > > gives me -> KeyNotFound: key 'athens' not found in Dictionary > > > > > > 'Athens' fails too. > > > > > > I can verify lack of anti-aliasing also on win7. > > > > > > I cant find an option to set anti-aliasing or Athens as backend in > Easel . > > > > > > Loaded Roassal today with -> > > > > > > Gofer new smalltalkhubUser: 'ObjectProfile' project: 'Roassal'; > package: 'ConfigurationOfRoassal'; load. (Smalltalk at: > #ConfigurationOfRoassal) load. > > > > > > the image I am using is version 30585. > > > > > > > > > On Tue, Nov 26, 2013 at 2:23 PM, Alexandre Bergel < > alexandre.bergel(a)me.com> wrote: > > > > Yes I am interested in Amber Roassal and also Roassal3d. Mostly on > Amber Roassal because I want to target tablets and phones and since I have > no desire to go through the App stores, javascript is my best option. > > > > > > We are in sync > > > > > > > Another thing I have observed is that in all examples there is no > anti-aliasing which I find very weird because my vector editor which uses > Athens as well, has anti-aliased lines. Why is that ? > > > > > > Strange. Have you tried to execute âROPlatform setCurrent: âathensââ. > You can use the easel to set the Athens canvas. > > > Else, simply use the Moose image, it comes with Athens and Roassal > properly installed. > > > > > > > I am very excited about Roassal , the more I look at the code and > the documentation the more I realize how flexible it is. > > > > > > Thanks. We took care of having a lean and clean design. Although we > are quite satisfied, it is far from representing our ideal yet. One think I > would like to remove, is the rendering loop, having it just above Athens, > but below Roassal. We will work on this in January I think. > > > > > > > Is Roassal3d part of the Roassal project or is it an outside project > ? > > > > > > It is a new and different project. > > > > > > > Also do you plan integrating with Spec ? Will Roassal be a backend > for Spec ? > > > > > > We have no plan for this right now. Glamour is well integrated with > Roassal. It should be easy to do it with Spec. > > > > > > Alexandre > > > > > > > > > > > > > > > > > > On Mon, Nov 25, 2013 at 11:46 PM, Alexandre Bergel < > alexandre.bergel(a)me.com> wrote: > > > > Hi! > > > > > > > > > So I took your advice and gave a good look to Roassal to learn > more about how to use Athens. First I want to congratulate the coders, I > was expecting a simple visualisation library for object graphs and what I > see is a full blown graphics library that can be used for many diffirent > kinds of graphical illustrations. > > > > > > > > Thanks for your nice words :-) > > > > > > > > > I still however trying to understand the end goal of Roassal , is > there an end goal or is it generally code visualisation ? > > > > > > > > The goal of Roassal is getting broader with the time. The main > objective of Roassal is to be a platform for data visualisation. So, as > soon as you have a bunch of data (e.g., plenty of numbers or any arbitrary > objects), then Roassal should give you the tools to visualize and interact > with your data. > > > > > > > > Roassal is slowly moving from a tool for end-user to a platform on > which domain specific languages can be created. This is an important point > when reusing visualizations (e.g., ROTreeMapBuilder, ROMapBuilder, > ROMondrianViewBuilder are all compelling examples). > > > > > > > > Roassal is currently being ported to Amber, which will probably > broaden the vision behind Roassal. Early examples may be found on: > http://pestefo.github.io/roamber/# > > > > > > > > > > > > > Also I wanted to ask if Roassal can do visual coding. By that I > mean visualize not only objects but messages inside methods so the users > with drag and drop code in a visual way. > > > > > > > > Yes, Roassal is made for that. If there is something that Roassal > does not allow you to do, then let us know, we are a whole team ready to > polish Roassal. > > > > > > > > > I took a look at the examples but I see nowhere the use of bezier > curves , why is that ? > > > > > > > > There is a few. > > > > > > > > Try: > > > > -=-=-=-=-=-=-=-=-=-=-=-= > > > > "Source code: ROMondrianExample>>bezierCurveOn:" > > > > "Preambule. It includes the initialization. " > > > > | view rawView | > > > > rawView := ROView new. > > > > view := ROMondrianViewBuilder view: rawView. > > > > "-------------" > > > > "-------------" > > > > > > > > view shape circle size: 10. > > > > view nodes: (Collection withAllSubclasses). > > > > view shape bezierLine. > > > > view edgesFrom: #superclass. > > > > view radialTreeLayout. > > > > view center. > > > > > > > > "-------------" > > > > "-------------" > > > > "Below is the initiation of the menu and opening the visualization" > > > > ROEaselMorphic new populateMenuOn: view. > > > > view open > > > > -=-=-=-=-=-=-=-=-=-=-=-= > > > > > > > > Have a look at the class ROSplineExample > > > > It does not contains many examples, but you get enough to build > appealing visualization (e.g., > https://www.facebook.com/media/set/?set=a.511442275609041.1073741827.340543… ) > > > > > > > > More screenshots are available on: > https://www.facebook.com/ObjectProfile > > > > > > > > Cheers, > > > > Alexandre > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >

Nov. 26, 2013

Re: [Pharo-dev] 2 month Pharo break

by btc＠openinworld.com

Camillo Bruni wrote: > Hi guys, > > I will cease my pharo activities for the next two months since I have to finish my > thesis and I see myself too often "distracted" by pharo (consider this a good thing :). > > Of course I will remain available for emergency activities or any other urgent inquiries, > please contact me directly in these cases. > > see you on the other side! > I had to do the same - although since I'm not so central to Pharo, I just slipped quietly away. You'll end up with quite a queue of messages. My tallies 21-6-2013 to 21-8-2013 were... metacello 61 moose-dev 562 newbies 29 pharo-dev 2229 pharo-users 824 vm-dev 407 good and stay strong, cheers -ben

Nov. 26, 2013

Re: [Pharo-dev] Roassal Question

by kilon alios

and I was about to ask the same question. Great. On Tue, Nov 26, 2013 at 6:56 PM, Alexandre Bergel <alexandre.bergel(a)me.com>wrote: > Does the following helps? > -=-=-=-=-=-=-=-=-=-=-=-= > | view shape morph | > view := ROView new. > 100 timesRepeat: [ > shape := ROEllipse new size: 40; color: (Color green alpha: 0.5). > view add: shape element ]. > view elements do: [ :el | el translateTo: 500 atRandom @ 500 atRandom ]. > > > morph := ROAthensMorph on: view. > morph extent: 500 @ 500. > morph openInWindow > -=-=-=-=-=-=-=-=-=-=-=-= > > If you do not use Athens, then replace âROAthensMorphâ by âROMorphâ > > Alexandre > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > On Nov 26, 2013, at 12:51 PM, Goubier Thierry <thierry.goubier(a)cea.fr> > wrote: > > > Hi all, > > > > does anybody knows how to integrate a ROView inside a Morphic GUI ? > > > > Regards, > > > > Thierry > > -- > > Thierry Goubier > > CEA list > > Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s > > 91191 Gif sur Yvette Cedex > > France > > Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95 > > > > >

Nov. 26, 2013