March 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] The event handling mechanism implemented in Gaucho

by Fernando Olivero

Here is the code, the categories which include the mentioned classes. I'm preparing a one-click image of Gaucho for the Mac, so you can play with it also. And as the official release of the tool also! On Tue, Mar 6, 2012 at 12:33 PM, fernando.olivero(a)usi.ch <fernando.olivero(a)usi.ch> wrote: > Hi, Stef and Esteban, i'm sending an overview of the event handling > mechanism of Gaucho. So we can discuss the additions of multitouch > events and the design as well. > > > Key classes: GUserInterface, GPeripheralDevice, GDisplay, GView and > the new event model. > > GUserInterface: Collaborates with a sensor, and double dispatches the > event to the proper peripheral device. > > GMouse,GKeyboard: a peripheral device that distinguishes the system > event, and sends the user interface Â specific reactions: such as > > #mouse: aGMouse entered: aGShape > #keystroke: aGKeystroke from: aGKeyboard > > No reification of the events, just message passing amongst the user > interface, the peripherals, the display, the views, and the shapes. > > EXAMPLE > -------------------------------------------------------- > EVENTS: from the user to the shape > -------------------------------------------------------- > 1)the user clicks on the mouse > 2) a system event is announced > 3) the user interface dispatches it to the attached mouse > 4) the mouse detects that its a click to a particular shape on a view > of the display and informs the user interface > 5) the user interface informs the display of the click > > ------------------------------------------------------------------------ > VIEW: shape reacting to events and redrawing > -------------------------------------------------------------------------- > 6) the display informs the active view > 7) the active view informs the shape > 8) the shape reacts to the click. > 9)the display asks the shape wether it should redraw, and informs the > damage recorder. Gaucho implements a visual garbage collector scheme, > so the code is not polluted with #changed ,similar to eliminating the > need to send #alloc and #dealloc on memory garbage collector. But this > is surely for another thread. >

March 6, 2012

Re: [Pharo-project] .changes are now 37MBâ¦.

by StÃ©phane Ducasse

May be it would be good to have a look at eliot changes but we need time for that. > ... what do we do? > > http://code.google.com/p/pharo/issues/detail?id=4843 > (but that will not help that much. And someone would need to look at the tracker entry and make > it ready for integration). > > or just do a condense? The history is in Monticello. > > http://code.google.com/p/pharo/issues/detail?id=5379 > > > Marcus > > > -- > Marcus Denker -- http://marcusdenker.de > >

March 6, 2012

Re: [Pharo-project] GSoC ideas, 5 days to go!

by StÃ©phane Ducasse

would love to have that :) On Mar 6, 2012, at 9:19 AM, Geoffroy Couprie wrote: > Hello, > > I'm not sure if it has been done before, but an image provisioning tool would be cool. Imagine a window where you have different image profiles (for example, one for Seaside, one for Aida, one for desktop apps), you just click on it and it creates a minimal image with all the paquets you need. And you can create other profiles by selecting a few Metacello configurations. > > On Mon, Mar 5, 2012 at 7:19 PM, Carla F. Griggio <carla.griggio(a)gmail.com> wrote: > Hi everybody! > > Please remember that project ideas don't have to be projects to do from scratch. They could be new features or improvements for projects that are already being used or developed. > > Cheers! > Carla. > > > On Mon, Mar 5, 2012 at 1:34 PM, Janko MivÅ¡ek <janko.mivsek(a)eranova.si> wrote: > Hi guys, > > Friday is approaching fast and we have so far only 4 complete ideas on > this year ideas page: > > http://gsoc2012.esug.org/ideas > > Please think harder, two years ago we had 36 ideas and all evolved later > to projects, with mentor, second mentor, student etc. So, are we without > ideas two years later? :) > > Best regards > Janko > > > Dne 02. 03. 2012 15:05, piÅ¡e Janko MivÅ¡ek: > > Hi everyone, > > > > 7 days to deadline for ideas of this year GSoC! Please think about what > > would be a nice project for students to work and that way join our > > community. And yes, students are welcome to propose projects too! > > > > Let we "recycle" past project ideas too! Please review them and propose > > those still valuable. Or change the proposal to suit better. Here they > > are: http://gsoc2010.esug.org/ideas . > > > > Let me and Carla post GSoC related stuff only on Pharo, Squeak and VWNC > > mailing lists while for other let someone forward those mails there > > please. It is just too hard to post on 10+ mailing lists, you know... > > > > Past GSoC mentors please join the debate on special Smalltalk GSoC > > mentors list: http://groups.google.com/group/smalltalk-gsoc-mentors. If > > you want to be mentor this year you are welcome to join that list too. > > > > Best regards > > Janko > > > > S, Janko MivÅ¡ek piÅ¡e: > >> Dear Smalltalkers, > >> > >> Let we apply this year again for the Google Summer of Code, which as you > >> know is a Google's stipendium program for students to encourage them > >> working on open-source projects [1]. > >> > >> Ok, our first step as community is to collect ideas for possible > >> projects and to apply to the GSoC as an organization. Deadline is next > >> Friday, so please hurry on with ideas. Just put them as reply to this > >> email or to admins directly and we will put them on our website [2]. > >> > >> Your project idea should be written as answers to these questions: > >> > >> Name > >> Level (Beginner, Intermediate, Advanced) > >> Possible mentor > >> Possible second mentor > >> > >> Description > >> Technical Details > >> Benefits to the Student > >> Benefits to the Community > >> > >> > >> See how such ideas look like in past: http://gsoc2010.esug.org/ideas. > >> > >> Waiting for your ideas > >> Carla and Janko, your GSoC Admin team > >> > >> [1] http://www.google-melange.com/gsoc/homepage/google/gsoc2012 > >> [2] http://gsoc2012.esug.org > >> > > > > -- > Janko MivÅ¡ek > Aida/Web > Smalltalk Web Application Server > http://www.aidaweb.si > > >

March 6, 2012

[Pharo-project] The event handling mechanism implemented in Gaucho

by Fernando Olivero

Hi, Stef and Esteban, i'm sending an overview of the event handling mechanism of Gaucho. So we can discuss the additions of multitouch events and the design as well. Key classes: GUserInterface, GPeripheralDevice, GDisplay, GView and the new event model. GUserInterface: Collaborates with a sensor, and double dispatches the event to the proper peripheral device. GMouse,GKeyboard: a peripheral device that distinguishes the system event, and sends the user interface specific reactions: such as #mouse: aGMouse entered: aGShape #keystroke: aGKeystroke from: aGKeyboard No reification of the events, just message passing amongst the user interface, the peripherals, the display, the views, and the shapes. EXAMPLE -------------------------------------------------------- EVENTS: from the user to the shape -------------------------------------------------------- 1)the user clicks on the mouse 2) a system event is announced 3) the user interface dispatches it to the attached mouse 4) the mouse detects that its a click to a particular shape on a view of the display and informs the user interface 5) the user interface informs the display of the click ------------------------------------------------------------------------ VIEW: shape reacting to events and redrawing -------------------------------------------------------------------------- 6) the display informs the active view 7) the active view informs the shape 8) the shape reacts to the click. 9)the display asks the shape wether it should redraw, and informs the damage recorder. Gaucho implements a visual garbage collector scheme, so the code is not polluted with #changed ,similar to eliminating the need to send #alloc and #dealloc on memory garbage collector. But this is surely for another thread.

March 6, 2012

Re: [Pharo-project] [Moose-dev] Re: numerical method in smalltalk

by StÃ©phane Ducasse

On Mar 6, 2012, at 3:11 AM, Serge Stinckwich wrote: > On Tue, Mar 6, 2012 at 4:29 AM, StÃ©phane Ducasse > <stephane.ducasse(a)inria.fr> wrote: >> It would be really interesting to organize a bit the scientific packages so that we have one nice library to look for. >> Serge if you have some code please package it. > > Yes sure ! > > Anyone is aware of any Smalltalk code/project that might be used for a > scientific library for Smalltalk. > At the moment, there is a lot of fragmentation: > > - DHBNumerical (MIT): http://www.squeaksource.com/DHBNumerical.html > - StMath (licence unknown): > http://live.exept.de/doc/online/english/programming/goody_stmath.html > - MathComplex and MathQuaternion (MIT): http://www.squeaksource.com/Complex.html > - Smallapack (MIT): http://www.squeaksource.com/Smallapack.html > > Who is willing to contribue and in what domain (numerical analysis, > matrix, probability distribution, ...) ? > > Maybe we can propose a GSOC project for a student ? why not now we should start to - define a configurationOf for DHB - produce more tests Right now they are all in one class - may be produce some simple doc. I should reread the book (I read it in draft at least 5 times). Stef > Regards, > -- > Serge Stinckwich > UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam > Every DSL ends up being Smalltalk > http://doesnotunderstand.org/ >

March 6, 2012

[Pharo-project] fixUnderscores is cool to have in the image ; ) but broken

by StÃ©phane Ducasse

I'm fixing it. Stef

March 6, 2012

Re: [Pharo-project] in 14379...

by Pavel Krivanek

On Tue, Mar 6, 2012 at 12:23 PM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On Mar 6, 2012, at 12:08 PM, StÃ©phane Ducasse wrote: > >> Hi guys >> >> when I try to load >> >> MCSqueaksourceRepository >> Â Â Â location: 'http://squeaksource.com/Games' >> Â Â Â user: '' >> Â Â Â password: '' >> >> load MorphicGames-md.1.mcz >> >> I get a DNU >> >> isPostMortem >> Â Â Â "return whether we're inspecting a frozen exception without a process attached" >> Â Â Â |selectedContext| >> Â Â Â selectedContext := self selectedContext. >> Â Â Â (interruptedProcess suspendedContext == selectedContext) >> Â Â Â Â Â Â Â ifTrue: [ ^ false ]. >> Â Â Â ^ (interruptedProcess suspendedContext findContextSuchThat: [:c | c sender == selectedContext]) isNil >> >> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ^^^^^^ DNU findContextSuchThat: >> >> >> interruptedProcess suspendedContext is a MethodContext >> >> Now I do not understand since find findContextSuchThat: is defined in ContextPart the super class of MethodContext. >> > > This is related to the startup changes we integrated yesterday. > > (there is no change that has no side effect...) > > Â Â Â Â Marcus > It does every Warning exception, for example: self notify: 'hello'. Strange that it was not reported by tests... -- Pavel > -- > Marcus Denker -- http://marcusdenker.de > >

March 6, 2012

Re: [Pharo-project] in 14379...

by Pavel Krivanek

what about to fix it this way: isPostMortem "return whether we're inspecting a frozen exception without a process attached" |selectedContext suspendedContext | selectedContext := self selectedContext. suspendedContext := interruptedProcess suspendedContext. suspendedContext ifNil: [ ^ false ]. (suspendedContext == selectedContext) ifTrue: [ ^ false ]. ^ (suspendedContext findContextSuchThat: [:c | c sender == selectedContext]) isNil -- Pavel On Tue, Mar 6, 2012 at 12:08 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Hi guys > > when I try to load > > MCSqueaksourceRepository > Â Â Â Â location: 'http://squeaksource.com/Games' > Â Â Â Â user: '' > Â Â Â Â password: '' > > load MorphicGames-md.1.mcz > > I get a DNU > > isPostMortem > Â Â Â Â "return whether we're inspecting a frozen exception without a process attached" > Â Â Â Â |selectedContext| > Â Â Â Â selectedContext := self selectedContext. > Â Â Â Â (interruptedProcess suspendedContext == selectedContext) > Â Â Â Â Â Â Â Â ifTrue: [ ^ false ]. > Â Â Â Â ^ (interruptedProcess suspendedContext findContextSuchThat: [:c | c sender == selectedContext]) isNil > > Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ^^^^^^ DNU findContextSuchThat: > > > interruptedProcess suspendedContext is a MethodContext > > Now I do not understand since find findContextSuchThat: is defined in ContextPart the super class of MethodContext. > > Stef

March 6, 2012

Re: [Pharo-project] in 14379...

by Marcus Denker

On Mar 6, 2012, at 12:08 PM, StÃ©phane Ducasse wrote: > Hi guys > > when I try to load > > MCSqueaksourceRepository > location: 'http://squeaksource.com/Games' > user: '' > password: '' > > load MorphicGames-md.1.mcz > > I get a DNU > > isPostMortem > "return whether we're inspecting a frozen exception without a process attached" > |selectedContext| > selectedContext := self selectedContext. > (interruptedProcess suspendedContext == selectedContext) > ifTrue: [ ^ false ]. > ^ (interruptedProcess suspendedContext findContextSuchThat: [:c | c sender == selectedContext]) isNil > > ^^^^^^ DNU findContextSuchThat: > > > interruptedProcess suspendedContext is a MethodContext > > Now I do not understand since find findContextSuchThat: is defined in ContextPart the super class of MethodContext. > This is related to the startup changes we integrated yesterday. (there is no change that has no side effect...) Marcus -- Marcus Denker -- http://marcusdenker.de

March 6, 2012

Re: [Pharo-project] in 14379...

by StÃ©phane Ducasse

On Mar 6, 2012, at 12:08 PM, StÃ©phane Ducasse wrote: > Hi guys > > when I try to load > > MCSqueaksourceRepository > location: 'http://squeaksource.com/Games' > user: '' > password: '' > > load MorphicGames-md.1.mcz > > I get a DNU > > isPostMortem > "return whether we're inspecting a frozen exception without a process attached" > |selectedContext| > selectedContext := self selectedContext. > (interruptedProcess suspendedContext == selectedContext) > ifTrue: [ ^ false ]. > ^ (interruptedProcess suspendedContext findContextSuchThat: [:c | c sender == selectedContext]) isNil > > ^^^^^^ DNU findContextSuchThat: > > > interruptedProcess suspendedContext is a MethodContext > > Now I do not understand since find findContextSuchThat: is defined in ContextPart the super class of MethodContext. > self class superclass selectors includes: #findContextSuchThat: -> true :( process stuff happening? > Stef

March 6, 2012