August 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Pharo 1.3 release

by laurent laffont

On Tue, Aug 30, 2011 at 2:24 PM, Sean P. DeNigris <sean(a)clipperadams.com>wrote: > Nice and clear info. The only thing that I see left that may be confusing > is > the ci shortcut on the home page. Since there are currently two ci servers, > I think the ci link should take you to another page explaining the > difference and where they're headed. > Is hudson will be dropped or will stay around ? Laurent > > Sean > > -- > View this message in context: > http://forum.world.st/Pharo-1-3-release-tp3778010p3778552.html > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > >

Aug. 30, 2011

Re: [Pharo-project] Symbol>value:

by Damien Cassou

On Tue, Aug 30, 2011 at 3:59 PM, Sven Van Caekenberghe <sven(a)beta9.be> wrote: > Maybe we need more good example of where this would make real sense ? persons select: [:p | p isAdult] persons select: #isAdult persons inject: OrderedCollection new into: [:col :p | col copyWith: p] persons inject: OrderedCollection new into: #copyWith: -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

Aug. 30, 2011

Re: [Pharo-project] Symbol>value:

by Niko Schwarz

On Tue, Aug 30, 2011 at 3:59 PM, Sven Van Caekenberghe <sven(a)beta9.be> wrote: > #+ value: 1 value: 2 > > 1 perform: #+ with: 2 > > Note that the last two expressions are equally short/concise, the second being clearer. That is not a comparison worth making. The fair comparison is: [:a :b | a + b] vs #+ Now, I'd say, the second is clearer. With it, Pharo gains support for Tacit programming [1]. Niko [1] http://en.wikipedia.org/wiki/Tacit_programming -- http://scg.unibe.ch/staff/Schwarz twitter.com/nes1983 Tel: +41786126354

Aug. 30, 2011

Re: [Pharo-project] Symbol>value:

by Sven Van Caekenberghe

On 30 Aug 2011, at 14:30, Tudor Girba wrote: > And I even have a semantic reason: > - A Block represents a piece of functionality that can be evaluated with some input > - A Symbol often represents a selector which in turns represents a piece of functionality that can be evaluated with some input. > > From this point of view, they have similar responsibilities and we should be able to treat them the same. It feels as if this is only the case when the first argument is also the receiver, no ? | adder | adder := [ :x :y | x + y ]. adder value: 1 value: 2. #+ value: 1 value: 2 1 perform: #+ with: 2 Note that the last two expressions are equally short/concise, the second being clearer. Here things become weirder, don't you agree: | creator | creator := [ :x :y | Rectangle origin: 0@0 corner: x@ y ]. creator value: 10 value: 20. #origin:corner: value: Rectangle value: 0@0 value: 10@20 Rectangle perform: #origin:corner: with: 0@0 with: 10@20 Maybe we need more good example of where this would make real sense ? Sven

Aug. 30, 2011

Re: [Pharo-project] printing Scientific notation of float

by HernÃ¡n Morales Durand

If you mean '"%e".' printf: 0.0000000061. --> '"6.1".' There is some support here: http://www.squeaksource.com/Printf.html 2011/8/30 HwaJong Oh <daliot.oh(a)gmail.com>: > Hi, > Does Pharo have scientific float notation printing? > http://en.wikipedia.org/wiki/Scientific_notation > > I want to control the length of string of a float in my GUI. > > Thanks > HwaJong Oh > > -- > View this message in context: http://forum.world.st/printing-Scientific-notation-of-float-tp3778559p37785… > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > >

Aug. 30, 2011

Re: [Pharo-project] SCG Unibe CH Smalltalk Course

by Sven Van Caekenberghe

On 30 Aug 2011, at 14:41, StÃ©phane Ducasse wrote: > Some are based on http://stephane.ducasse.free.fr/Teaching.html Yes, I saw that you were crediting, among others ;-) > You can find some oo design lecture free material. This is nice: http://stephane.ducasse.free.fr/Teaching/stTeaching.pdf But there is so much to readâ¦. Sven

Aug. 30, 2011

Re: [Pharo-project] SCG Unibe CH Smalltalk Course

by Oscar Nierstrasz

The course materials are open source, and are available from here: http://scg.unibe.ch/teaching/smalltalk - on On Aug 30, 2011, at 15:02 , Torsten Bergmann wrote: > Sven Van Caekenberghe wrote on Pharo list: >> I recently discovered the slides (and exercises) of a Smalltalk course from the University of Bern: >> >> http://scg.unibe.ch/download/st/ > > Yes, nice intro to Smalltalk and Pharo, VM technology and true dynamic > languages. > > Max Leske wrote: >> I guess, the course in the form of those slides, however, is dead. > > Sad - maybe it could be redone one time again and recorded with a cam > to provide an online ST/Pharo course based on this material. > > Would IMHO be nice for http://www.pharocasts.com and the pharo website > and help to grow the visibility of Smalltalk (and the Uni Bern of course). > > The HPI Potsdam also already provides some Smalltalk related material > on http://tele-task.de (for instance a keynote by Alan Kay) > and a complete online Smalltalk video demo course would be cool! > > Any ideas if this could be made possible? > > Bye > T. > > > -- > NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurÃ¼ck-Garantie! > Jetzt informieren: http://www.gmx.net/de/go/freephone

Aug. 30, 2011

Re: [Pharo-project] Omnibrowser in 1.4

by HernÃ¡n Morales Durand

2011/8/29 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > > On Aug 29, 2011, at 11:13 PM, HernÃ¡n Morales Durand wrote: > >> Hi Stef, >> >> I just want to know if OB will be supported in Pharo >= 1.4 even if >> you don't maintain it, because I've spent energy and time learning the >> framework, and I have written one developer guide for OB and I have >> planned at least 5 more browsers. > > I did that too sadly. Alex and me wrote a complete chapter for Pharo by example 2. > Now I do not invest in system that cannot handle multiple selection and trees. > So good luck. For me trees are the basic minimum. > > Thanks. I read all your OB chapters/papers and they are very good. I will continue using OB, nothing against Nautilus or Glamour, except that as you already know I'm out of time for learning new ST frameworks and tools. I agree, trees are a must. Now, for OB supporters/maintainers (only Lukas?): - Is that hard to add trees to the column panes without rewriting everything? -- I replaced the "code pane" with an Explorer and ImageMorph in the MagmaBrowser, the code is in SqS for almost 2 years, see http://www.youtube.com/watch?v=VxUaOFRHFPk it is not the same as handling column interactions but it's a start. There is also a feature to paginate very large lists that nobody cared to mention or even steal. -- IIRC O2 could manage trees at some point right? - The same for multiple selections (I've implemented in the old Squeak classic system browser), is the problem understanding OB or is too difficult to modify or both? - Anyone willing to collaborate or review the OB article I wrote can contact me anytime. HernÃ¡n

Aug. 30, 2011

[Pharo-project] SCG Unibe CH Smalltalk Course

by Torsten Bergmann

Sven Van Caekenberghe wrote on Pharo list: > I recently discovered the slides (and exercises) of a Smalltalk course from the University of Bern: > > http://scg.unibe.ch/download/st/ Yes, nice intro to Smalltalk and Pharo, VM technology and true dynamic languages. Max Leske wrote: >I guess, the course in the form of those slides, however, is dead. Sad - maybe it could be redone one time again and recorded with a cam to provide an online ST/Pharo course based on this material. Would IMHO be nice for http://www.pharocasts.com and the pharo website and help to grow the visibility of Smalltalk (and the Uni Bern of course). The HPI Potsdam also already provides some Smalltalk related material on http://tele-task.de (for instance a keynote by Alan Kay) and a complete online Smalltalk video demo course would be cool! Any ideas if this could be made possible? Bye T. -- NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurÃ¼ck-Garantie! Jetzt informieren: http://www.gmx.net/de/go/freephone

Aug. 30, 2011

Re: [Pharo-project] Polymorph changes

by Gary Chambers

Yes Stef, for 1.4 (bravely using it for our OCR development!) Ta Regards, Gary ----- Original Message ----- From: "StÃ©phane Ducasse" <stephane.ducasse(a)inria.fr> To: <Pharo-project(a)lists.gforge.inria.fr> Sent: Tuesday, August 30, 2011 1:42 PM Subject: Re: [Pharo-project] Polymorph changes tx gary is this for 1.4 (I guess). I will integrate them. Stef On Aug 30, 2011, at 2:29 PM, Gary Chambers wrote: > Before I forget... > A few changes to Polymorph and fixes for a few other packages attached. > > AlphaImageMorph supports #scaledAspect layout option (scales the image to > fit whilst retaining aspect ratio) > also class side accessor to set DefaultImage (I use the Pharo logo, > appears in #exampleOtherControls) > DialogItemsChooserUI centering rounded to avoid layout anomalies > EditorFindReplaceDialogWindow initialized to position within usable area > of display so not obscured by docks etc. > GeneralScrollPane minWidth/minHeight when shrinkWrapping to target > LazyListMorph mouse down row indication fixed > PluggableListMorph fix for startDragExtended: mouse focus and wrapItem > (when wrapSelector takes 0 args) > ScrollPane will ignore mouse wheel iv not vertically scrollable (allows > owners to handle) > SystemWindow basicActivate no longer passivates old top window if no > longer in world > UITheme expander color no longer set to white by default > nil labels for label groups now allow the associated control to fill > whole width > > > Also I've noticed that in latest updates, corner rounding no longer > functions (affects scrollbars etc. in Watery 2 theme). > > Regards, Gary > <PolymorphImprovements2.1.cs>

Aug. 30, 2011