March 2014 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Class vars and inst vars of a class

by Eliot Miranda

Hi Uko, On Wed, Mar 19, 2014 at 3:26 PM, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: > Can anybody tell me what is the difference between the class variable on > the "instance side" definition and instance variable on the "class side" > definition? > > Thanks in advance. > Uko > Class variables, as in classVariableNames: 'AClassVariable' are global variables in scope in all methods of the class and its subclass, instannce methods of the class and instance methods if the subclass. In the example, there is only one AClassVariable in the class. Class instance variables are instance variables in the class object. The class object inherits from Behavior, ClassDescription and Class, and hence already has the superclass, methodDict, format, instanceVariables, organization, subclasses, name, classPool, sharedPools instance variables (details depending on dialect). The instanceVariableNames: on the class side add to these, but they are per-instance, and so the class and each of its subclasses has one of these instance variables and hence each class can have its own value for it, just as the class and each of its subclasses have their own method dictionaries. Further, the class instance variable is only in scope in class methods. HTH, Eliot

March 19, 2014

Class vars and inst vars of a class

by Yuriy Tymchuk

Can anybody tell me what is the difference between the class variable on the "instance sideâ definition and instance variable on the âclass sideâ definition? Thanks in advance. Uko

March 19, 2014

Re: [Pharo-dev] Font problem is still there

by Tudor Girba

There exists a issue for it: https://pharo.fogbugz.com/f/cases/12777/Athens-font-cacheing-bug Doru On Wed, Mar 19, 2014 at 9:23 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Does it mean that we should add the workaround back? > > At this moment, to get the Moose image to work, we load an older version > of Athens manually. > > Cheers, > Doru > > > > > On Wed, Mar 19, 2014 at 3:07 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > >> >> >> >> On 19 March 2014 13:43, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: >> >>> Hi! >>> >>> We have had experience a problem with font when using Athens to display >>> text. >>> >>> >>> >>> Apparently, this is due to some recent version of Athens. We have to >>> load the following packages to not experience the problem: >>> >>> Name: Athens-Core-MarcusDenker.34 >>> Author: MarcusDenker >>> Time: 5 July 2013, 10:59:47.206954 am >>> UUID: e844b2d4-b091-42a4-9be0-17101dcdbd30 >>> Ancestors: Athens-Core-MarcusDenker.33, Athens-Core-ErwanDouaille.33 >>> >>> Name: Athens-Cairo-MarcusDenker.51 >>> Author: MarcusDenker >>> Time: 26 August 2013, 4:03:06.190096 pm >>> UUID: 9e1bfddb-67f7-4a36-864d-11060b8b6881 >>> Ancestors: Athens-Cairo-SebastianTleye.50 >>> >>> This is a _major_ problem to us and apparently there is no simple >>> solution. These kind of problem may force us to move to seek for an >>> alternative to Athens. >>> >>> >> there's some kind of caching interference either in cairo or between >> cairo and freetype, >> when using identity transformation matrix and integral (integer) font >> sizes. >> and there is a simple workaround: >> >> canvas pathTransform restoreAfter: [ >> canvas pathTransform scaleBy: 1.00001. >> "draw text here" >> >> ] >> >> this workaround was in font-rendering code, but then i removed it, >> because i thought problem was solved. >> >> Alexandre >>> -- >>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>> Alexandre Bergel http://www.bergel.eu >>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>> >>> >>> >>> >> >> >> -- >> Best regards, >> Igor Stasenko. >> > > > > -- > www.tudorgirba.com > > "Every thing has its own flow" > -- www.tudorgirba.com "Every thing has its own flow"

March 19, 2014

Re: [Pharo-dev] Font problem is still there

by Tudor Girba

Does it mean that we should add the workaround back? At this moment, to get the Moose image to work, we load an older version of Athens manually. Cheers, Doru On Wed, Mar 19, 2014 at 3:07 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > > > > On 19 March 2014 13:43, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > >> Hi! >> >> We have had experience a problem with font when using Athens to display >> text. >> >> >> >> Apparently, this is due to some recent version of Athens. We have to load >> the following packages to not experience the problem: >> >> Name: Athens-Core-MarcusDenker.34 >> Author: MarcusDenker >> Time: 5 July 2013, 10:59:47.206954 am >> UUID: e844b2d4-b091-42a4-9be0-17101dcdbd30 >> Ancestors: Athens-Core-MarcusDenker.33, Athens-Core-ErwanDouaille.33 >> >> Name: Athens-Cairo-MarcusDenker.51 >> Author: MarcusDenker >> Time: 26 August 2013, 4:03:06.190096 pm >> UUID: 9e1bfddb-67f7-4a36-864d-11060b8b6881 >> Ancestors: Athens-Cairo-SebastianTleye.50 >> >> This is a _major_ problem to us and apparently there is no simple >> solution. These kind of problem may force us to move to seek for an >> alternative to Athens. >> >> > there's some kind of caching interference either in cairo or between cairo > and freetype, > when using identity transformation matrix and integral (integer) font > sizes. > and there is a simple workaround: > > canvas pathTransform restoreAfter: [ > canvas pathTransform scaleBy: 1.00001. > "draw text here" > > ] > > this workaround was in font-rendering code, but then i removed it, because > i thought problem was solved. > > Alexandre >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> > > > -- > Best regards, > Igor Stasenko. > -- www.tudorgirba.com "Every thing has its own flow"

March 19, 2014

Re: [Pharo-dev] [Pharo-users] [ANN] ArchLinux pharo-vm / pharo-launcher packages

by Laurent Laffont

Le mercredi 19 mars 2014, 15:05:56 Damien Cassou a Ã©crit : > On Tue, Mar 18, 2014 at 10:40 PM, Laurent Laffont > <laurent.laffont(a)gmail.com> wrote: > > you can now install pharo vm on Arch with: > > > that's brilliant. Thanks. Can I reference your work in > http://www.smalltalkhub.com/#!/~Pharo/PharoLauncher ? Sure ! Laurent > >

March 19, 2014

Re: [Pharo-dev] EyeTreeInspector -> Simple Mode?

by Sebastian Sastre

Now weâre talking! happy to see that :D On Mar 19, 2014, at 2:24 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Guys, > > If you want to discuss these aspects, please make sure you use the very latest image. Right now, exploring an OrderedCollection looks like this: > > <Screen Shot 2014-03-19 at 18.22.53.png> > > Various aspects were simplified recently. And pretty soon, it will also open on the first level. > > Sven > > On 19 Mar 2014, at 18:00, Sebastian Sastre <sebastian(a)flowingconcept.com> wrote: > >> yeahâ¦ but watch this: >> >> #(a b c) asOrderedCollection >> >> <Screen Shot 2014-03-19 at 1.54.23 PM.png> >> >> and thenâ¦ >> >> arrow key down, then arrow key right and you get >> >> <Screen Shot 2014-03-19 at 1.54.38 PM.png> >> >> we can do better than that >> >> >> >> >> >> >> >> >> >> On Mar 19, 2014, at 1:42 PM, phil(a)highoctane.be wrote: >> >>> Ah, looks like I was looking at something returning the class and not a proper object, so, of course, there are lots of things. >>> >>> Phil >>> >>> On Wed, Mar 19, 2014 at 5:20 PM, phil(a)highoctane.be <phil(a)highoctane.be> wrote: >>> Is there a way to get the EyeTreeInspector in Pharo3 to only display instance variables and globals and not the whole set of things that are of no interest when developing business style applications? >>> >>> Or put the instance vars first. >>> >>> I'll dig in there for my own use but for newcomers, that's a real PITA I guess. >>> Maybe a filter icon or something would come helpful (or a SimpleEyeTreeInspector option in the drop down) >>> >>> Phil >>> >>> >>> >> >

March 19, 2014

Re: [Pharo-dev] EyeTreeInspector -> Simple Mode?

by Sven Van Caekenberghe

Guys, If you want to discuss these aspects, please make sure you use the very latest image. Right now, exploring an OrderedCollection looks like this: Various aspects were simplified recently. And pretty soon, it will also open on the first level. Sven On 19 Mar 2014, at 18:00, Sebastian Sastre <sebastian(a)flowingconcept.com> wrote: > yeahâ¦ but watch this: > > #(a b c) asOrderedCollection > > <Screen Shot 2014-03-19 at 1.54.23 PM.png> > > and thenâ¦ > > arrow key down, then arrow key right and you get > > <Screen Shot 2014-03-19 at 1.54.38 PM.png> > > we can do better than that > > > > > > > > > > On Mar 19, 2014, at 1:42 PM, phil(a)highoctane.be wrote: > >> Ah, looks like I was looking at something returning the class and not a proper object, so, of course, there are lots of things. >> >> Phil >> >> On Wed, Mar 19, 2014 at 5:20 PM, phil(a)highoctane.be <phil(a)highoctane.be> wrote: >> Is there a way to get the EyeTreeInspector in Pharo3 to only display instance variables and globals and not the whole set of things that are of no interest when developing business style applications? >> >> Or put the instance vars first. >> >> I'll dig in there for my own use but for newcomers, that's a real PITA I guess. >> Maybe a filter icon or something would come helpful (or a SimpleEyeTreeInspector option in the drop down) >> >> Phil >> >> >> >

March 19, 2014

R: [ANN] Pharo and ST books page (as another Seaside demo on PharoCloud)

by Lorenzo Schiavina

Great job! Lorenzo -----Messaggio originale----- Da: Pharo-dev [mailto:pharo-dev-bounces@lists.pharo.org] Per conto di Torsten Bergmann Inviato: mercoledÃ¬ 19 marzo 2014 13:53 A: Pharo Development List; pharo-users(a)lists.pharo.org; seaside(a)lists.squeakfoundation.org Cc: "StÃ©phane Ducasse"; mike(a)pharocloud.com Oggetto: [Pharo-dev] [ANN] Pharo and ST books page (as another Seaside demo on PharoCloud) There are some free Smalltalk books collected by Stef in the past. http://stephane.ducasse.free.fr/FreeBooks.html Yet this page is often unknown to people. I therefore converted them to a more Seaside like demo using the Bootstrap project at: http://pharo.pharocloud.com/pharobooks as part of the Pharo/Seaside/Bootstrap demos at http://pharo.pharocloud.com Code for this is on http://smalltalkhub.com/#!/~TorstenBergmann/PharoCloud. I would suggest that we create a shortlink "books.pharo.org" for http://pharo.pharocloud.com/pharobooks to it - any takers? This way we can tell people: "Ahh you want to get Pharo, just use get.pharo.org" "Ahh you want to download Pharo, just use files.pharo.org" "Ahh you want to enhance Pharo, just use bugs.pharo.org" "Ahh you want to control Pharo, just use ci.pharo.org" and now "Ahh you want to learn Pharo, just use books.pharo.org" to be continued ... Kudos to Stef for the collection and to Mike for being able to host a demo on pharocloud. Have fun T.

March 19, 2014

Re: [Pharo-dev] EyeTreeInspector -> Simple Mode?

by Sebastian Sastre

yeahâ¦ but watch this: #(a b c) asOrderedCollection and thenâ¦ arrow key down, then arrow key right and you get we can do better than that On Mar 19, 2014, at 1:42 PM, phil(a)highoctane.be wrote: > Ah, looks like I was looking at something returning the class and not a proper object, so, of course, there are lots of things. > > Phil > > On Wed, Mar 19, 2014 at 5:20 PM, phil(a)highoctane.be <phil(a)highoctane.be> wrote: > Is there a way to get the EyeTreeInspector in Pharo3 to only display instance variables and globals and not the whole set of things that are of no interest when developing business style applications? > > Or put the instance vars first. > > I'll dig in there for my own use but for newcomers, that's a real PITA I guess. > Maybe a filter icon or something would come helpful (or a SimpleEyeTreeInspector option in the drop down) > > Phil > > >

March 19, 2014

Re: [Pharo-dev] EyeTreeInspector -> Simple Mode?

by phil＠highoctane.be

But there is something weird in there still. the card1,2,3,4 things are not on the class side in any way and still do show there. Weird. Maybe these were the temporaries. In any case, it is weird. Phil On Wed, Mar 19, 2014 at 5:42 PM, phil(a)highoctane.be <phil(a)highoctane.be>wrote: > Ah, looks like I was looking at something returning the class and not a > proper object, so, of course, there are lots of things. > > Phil > > On Wed, Mar 19, 2014 at 5:20 PM, phil(a)highoctane.be <phil(a)highoctane.be>wrote: > >> Is there a way to get the EyeTreeInspector in Pharo3 to only display >> instance variables and globals and not the whole set of things that are of >> no interest when developing business style applications? >> >> Or put the instance vars first. >> >> I'll dig in there for my own use but for newcomers, that's a real PITA I >> guess. >> Maybe a filter icon or something would come helpful (or a >> SimpleEyeTreeInspector option in the drop down) >> >> Phil >> >> >> >

March 19, 2014