March 2015 - Pharo-dev - lists.pharo.org

[Reflectivity] simple #before and #after links working...

by Marcus Denker

Hi, After loading this: https://pharo.fogbugz.com/f/cases/15196/Simple-before-and-after-links-with-… <https://pharo.fogbugz.com/f/cases/15196/Simple-before-and-after-links-with-…> Simple after and before MetaLinks are taken into account, with just one check in #visitNode of the ASTTranslator that is false when no links are there. (which means this slice should not impact anything) For now this is for very simple MetaLinks: no parameters, no condition, no reification, no #instead/around, no meta-level modelling. Here is a trivial example: 1) get a AST node from our example method: sendNode := (ReflectivityExamples>>#exampleMethod) ast body statements first value. 2) then we define a link that is just #halt: link := MetaLink new metaObject: Halt; selector: #now. 3) we set it: sendNode link: link. 4) when we now execute the method, we get a halt: ReflectivityExamples new exampleMethod 5) to get rid of it, uninstall the link: link uninstall. If you look at the byte code, you see that it compiles the link to the code: 25 <20> pushConstant: Halt 26 <D1> send: now Marcus

March 21, 2015

Re: [Pharo-dev] ClassCommented announcement missing

by phil＠highoctane.be

Copying a class in Nautilus also isn't copying the class comment in 3.0 Phil Le 21 mars 2015 15:46, "stepharo" <stepharo(a)free.fr> a Ã©crit : > Hi nicolai > > I do not know. this looks strange to me. > > Stef > > Le 21/3/15 15:01, Nicolai Hess a Ã©crit : > > Someone knows why ClassCommented-announcements aren't > announced during a mc package load ? > > see: > 15190 <https://pharo.fogbugz.com/default.asp?15190> > Nautilus incorrectly flags Error classes as "missing class comments" > > and > SlotClassBuilder>>#build > > .... > SystemAnnouncer uniqueInstance suspendAllWhile: [ > comment ifNotNil: [result classComment: comment stamp: > commentStamp]]. > .... > > > > nicolai > > > > >

March 21, 2015

Re: [Pharo-dev] Color arithmetical operations are broken

by Eliot Miranda

Why not take the average of alpha in all cases? Eliot (phone) On Mar 21, 2015, at 6:32 AM, Aliaksei Syrel <alex.syrel(a)gmail.com> wrote: > > On Sat, Mar 21, 2015 at 3:41 AM, Ben Coman <btc(a)openinworld.com> wrote: >> Do we need to do something for Pharo 4? And what is the simplest/quickest thing that would work - even if it needs revisiting in Pharo 5? > > > The most simple that works is to at least set alpha to any value. > Multiplication - alpha doesn't change > Division - alpha doesn't change > Addition - (color1 apha + color2 alpha) min: 1.0 - simple addition and check to not allow alpha to overcome max value > Subtraction - if two colors are the same alpha becomes 0, otherwise we take alpha of message receiver (minuend) > Slice is in inbox (15188) > > Cheers, > Alex

March 21, 2015

Re: [Pharo-dev] Color arithmetical operations are broken

by stepharo

Yes it sounds reasonable. Stef Le 21/3/15 14:32, Aliaksei Syrel a Ã©crit : > > On Sat, Mar 21, 2015 at 3:41 AM, Ben Coman <btc(a)openinworld.com > <mailto:btc@openinworld.com>> wrote: > > Do we need to do something for Pharo 4? And what is the > simplest/quickest thing that would work - even if it needs > revisiting in Pharo 5? > > > The most simple that works is to at least set alpha to any value. > > * Multiplication - alpha doesn't change > * Division - alpha doesn't change > * Addition - (color1 apha + color2 alpha) min: 1.0 - simple addition > and check to not allow alpha to overcome max value > * Subtraction - if two colors are the same alpha becomes 0, > otherwise we take alpha of message receiver (minuend) > > Slice is in inbox (15188) > > Cheers, > Alex

March 21, 2015

Re: [Pharo-dev] ClassCommented announcement missing

by stepharo

Hi nicolai I do not know. this looks strange to me. Stef Le 21/3/15 15:01, Nicolai Hess a Ã©crit : > Someone knows why ClassCommented-announcements aren't > announced during a mc package load ? > > see: > 15190 <https://pharo.fogbugz.com/default.asp?15190> > Nautilus incorrectly flags Error classes as "missing class comments" > > and > SlotClassBuilder>>#build > > .... > SystemAnnouncer uniqueInstance suspendAllWhile: [ > comment ifNotNil: [result classComment: comment stamp: > commentStamp]]. > .... > > > > nicolai > > >

March 21, 2015

ClassCommented announcement missing

by Nicolai Hess

Someone knows why ClassCommented-announcements aren't announced during a mc package load ? see: 15190 <https://pharo.fogbugz.com/default.asp?15190> Nautilus incorrectly flags Error classes as "missing class comments" and SlotClassBuilder>>#build .... SystemAnnouncer uniqueInstance suspendAllWhile: [ comment ifNotNil: [result classComment: comment stamp: commentStamp]]. .... nicolai

March 21, 2015

Threadsafe orderedCollection

by stepharo

Hi guys I'm looking for a thread safe simple orderedcollection to be able to concurrent add:. We have atomicSharedQueue but it does not support access to a given element. Stef

March 21, 2015

Re: [Pharo-dev] Color arithmetical operations are broken

by Aliaksei Syrel

On Sat, Mar 21, 2015 at 3:41 AM, Ben Coman <btc(a)openinworld.com> wrote: > Do we need to do something for Pharo 4? And what is the simplest/quickest > thing that would work - even if it needs revisiting in Pharo 5? The most simple that works is to at least set alpha to any value. - Multiplication - alpha doesn't change - Division - alpha doesn't change - Addition - (color1 apha + color2 alpha) min: 1.0 - simple addition and check to not allow alpha to overcome max value - Subtraction - if two colors are the same alpha becomes 0, otherwise we take alpha of message receiver (minuend) Slice is in inbox (15188) Cheers, Alex

March 21, 2015

Re: [Pharo-dev] The Grapher charting engine

by Tudor Girba

Nice work. I will reply about improvements separately. Cheers. Doru On Fri, Mar 20, 2015 at 10:18 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Dear all, > > As many of you know, Grapher is a Ã¼ber-cool charting engine, part of > Roassal. > For people who do not know what Grapher is, here is a (compelling we hope) > example: > > Which is obtained by the following script: > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > | b colors points ds pts dec lb | > b := RTGrapher new. > colors := Array with: Color red with: Color blue. > points := OrderedCollection new. > > colors do: [ :c | > ds := RTStackedDataSet new. > pts := ((1 to: 100) collect: [ :i | 50 atRandom - 25 ]) cumsum. > points add: pts. > ds points: pts. > dec := RTDevVarDecorator new. > dec moveBehind; > desviation: 0.5; > color: (c alpha: 0.3); > points: pts. > ds connectUsing: (RTLine new color: (c alpha: 0.5); width: 1 ). > b add: ds. > b addDecorator: dec. > ]. > > b axisX; axisY. > b build. > > lb := RTLegendBuilder new. > lb view: b view. > colors doWithIndex: [ :c :i | > lb addColor: c text: 'Series ', i printString ]. > lb build. > b view @ RTZoomableView. > b view > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > > > In our grand vision of making Roassal the best visualizing engine of the > Universe (we also know to be modest time to time, but not today :-), > Grapher will play a very important role. We would like to stabilize Grapher > and make it sure it happily fits everybody needs. You can help on it: > > - When you are tempted to look at the dark side of the planet (this is > where R, JFreeChart, gnuplot, D3 and all their friends live), let us know. > We will make sure to make you are happy again. > > - Share your wishlist with us. We already have a long todo list, but your > opinion does matter and will take it seriously > > - we are open to contributions, which could be financial, bug fixe, > enhancement, or simply encouragement. > > I am very happy to be surrounded by very smart engineers. Your > encouragement are making them happy :-) > > Cheers, > Alexandre, in the name of the Object Profile Team > > NB: sorry for the cross-list posting, but this email is very important for > us, and for you we hope. > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > -- www.tudorgirba.com "Every thing has its own flow"

March 21, 2015

Re: [Pharo-dev] Pharo 4.0 Download options

by stepharo

Thanks peter. I love when people reply exactly what I think :) Stef Le 21/3/15 00:37, Peter UhnÃ¡k a Ã©crit : > > - Am I missing something that's obvious to seasoned Pharo devs? > How do you guys download new versions of Pharo, with sources and > everything? > > Many (most?) people use Pharo Launcher > http://smalltalkhub.com/#!/~Pharo/PharoLauncher > <http://smalltalkhub.com/#%21/%7EPharo/PharoLauncher> > > > - Is there any way we can include a full download option (image, > changes, sources & VM) on the Download Pharo page? (So that new > users don't have to search around on the CI server)? > > The ZeroConf lists many options http://get.pharo.org/ > it also includes versions with VM (e.g. get.pharo.org/40+vm > <http://get.pharo.org/40+vm>) > > - Does the VM change, when you go from Pharo 3 to 4? Or can you > just use a 4.0 image with the VM that came in the 3.0 zip? > > I use the same VM for both; the stable VM is year old (Pharo 3 > release). As far as I can tell it's compatible. > > Peter

March 21, 2015