November 2010 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] About SimpleMorphic

by Igor Stasenko

On 7 November 2010 05:17, Juan Vuletich <juan(a)jvuletich.org> wrote: > Hi Folks, > > I apologize for not answering the original messages properly, I had mail > deliver disabled, so I can't. I have enabled it, so I'll answer properly > from now on. > > To Hillarie: > If you don't use Polymorph, but want to build your own Morphs from scratch, > SimpleMorphic is simpler, easier to understand, tweak and fix. > > > To Doru: > Let's do a comparison: > > Size of 4 core classes (Morph, MorphExtension, PasteUpMorph and WorldState) > Pharo / Squeak / Cuis > totalIvars: Â 39 / 46 / 26 > totalClassVars: 15 / 10 / 5 > totalInstMethods: 1170 / 1764 / 663 > totalClassMethods: 55 / 71 / 16 > > Size of the whole Morph hierarchy > Pharo / Squeak / Cuis > totalClasses: 197 / 331 / 58 > totalIvars: Â 649 / 1063 / 257 > totalClassVars: 54 / 138 / 28 > totalInstMethods: 6651 / 9186 / 2115 > totalClassMethods: 303 / 858 / 127 > > SimpleMorphic is much smaller. Core classes are simpler and easier to > understand, fix and extend. The most important part is that this is not > blind removal of unused code. A lot of the functionality has been redesigned > to make it simpler, and the removal was done with great care to result in a > consistent system. This work started in 2004, so we're talking of about 6 > years of careful work. All this means that SimpleMorphic does not support > all the features that Pharo or Squeak might support. Please use the browsers > and other tools in Cuis to check what it indeed can do. > > Talking about complexity, let's take for example, morph layout. This is > started with #doLayoutIn: in Pharo and #doLayoutIfNeeded in SimpleMorphic. > > In Pharo, this method calls #adjustLayoutBounds: (19), #layout:in: (149), > #layoutProportionallyIn: (10), #computeCellArrangement:in:horizontal:target: > (87), #computeGlobalCellArrangement:in:horizontal:wrap:spacing: (31), > #computeCellSizes:in:horizontal: (30), > #computeExtraSpacing:in:horizontal:target: (136), #layoutLeftToRight:in: > (91), #layoutTopToBottom:in: (91), #placeCells:in:horizontal:target: (70). > The numbers in parenthesis are the sum of the lines of code of the > implementors. Total lines of code for layout (taking only these most > important methods) is 714. I doubt there are many people who really > understand all of this code. > > In SimpleMorphic (Cuis), this calls #layoutSubmorphsIn: (10), > #applyLayoutFrameIn: (11), #layout:in: (24). Total lines of code is 45. I > believe any smalltalker could understand these in just minutes. > Indeed, a morphic layout logic always felt overly complicated to me. It hard, because you don't know, if you can remove/replace anything from there and still have a working code. Good to see that you have managed to deal with that. > I hope this makes makes it clearer to you what SimpleMorphic is. > > Cheers, > Juan Vuletich > > -- Best regards, Igor Stasenko AKA sig.

Nov. 7, 2010

[Pharo-project] Monticello in Squeak 3.7 MVC-only Or changeset updater script?

by Stefan Marr

Hi: Does anyone know (perhaps Dale?) how likely it is to get Monticello in a MVC-only image running? I checked the documentation at http://www.wiresong.ca/monticello/v1/docs/getting-started.html and the update IDs seem to be ok. At least my image identifies it self with 'latest update: #5959'. (thats the image: https://github.com/downloads/smarr/RoarVM/minimal-MVC.zip) However, neither the document, nor SqueakMap give me the feeling that I actually know how to start loading it. I found http://ftp.squeak.org/3.11-obsolete/scripts/mc15.st but well, thought I ask here first. If that does not seem to feasible, does anyone know a ready-to-use script to build a change set from a number of Monticello packages automatically taking dependencies into account? Would be nice, if I could hook something into the package saving mechanism that spills out an updated .st file every time I safe a package. Thanks Stefan -- Stefan Marr Software Languages Lab Vrije Universiteit Brussel Pleinlaan 2 / B-1050 Brussels / Belgium http://soft.vub.ac.be/~smarr Phone: +32 2 629 2974 Fax: +32 2 629 3525

Nov. 7, 2010

Re: [Pharo-project] PharoKernel #12229

by Pavel Krivanek

hmm, try to start it with a startup script containing Display restore. Cheers, -- Pavel On Sun, Nov 7, 2010 at 4:15 PM, Adrian Lienhard <adi(a)netstyle.ch> wrote: > On OSX with a recent VM (4.2.5beta1U) the image, PharoKernel-Core-1.2-12229.image, starts but without displaying window. The native menu is populated, but apart from this nothing happens... > > Adrian > > On Nov 6, 2010, at 23:11 , Pavel Krivanek wrote: > >> Hi, >> >> I uploaded an updated version of PharoKernel. It is now able to load >> all PharoCore packages (resultant image included). >> >> https://gforge.inria.fr/frs/download.php/27904/PharoKernel-1.2-12229.zip >> >> If you want to use DejaVu fonts, uncomment in the file initCore.st this lines: >> >> Gofer it >> Â squeaksource: 'DejaVu'; >> Â package: 'DejaVuBitmapFonts'; >> Â load. >> (Smalltalk globals at: #DejaVuHolder) installFull. >> StandardFonts restoreDefaultFonts. >> >> Please check the generated PharoCore image and open issues for errors >> because it shows that the packages are missing some initialization >> code. >> >> Cheers, >> -- Pavel >> > > >

Nov. 7, 2010

Re: [Pharo-project] About SimpleMorphic

by Douglas Brebner

On 07/11/2010 03:17, Juan Vuletich wrote: > > In Pharo, this method calls #adjustLayoutBounds: (19), #layout:in: > (149), #layoutProportionallyIn: (10), > #computeCellArrangement:in:horizontal:target: (87), > #computeGlobalCellArrangement:in:horizontal:wrap:spacing: (31), > #computeCellSizes:in:horizontal: (30), > #computeExtraSpacing:in:horizontal:target: (136), > #layoutLeftToRight:in: (91), #layoutTopToBottom:in: (91), > #placeCells:in:horizontal:target: (70). The numbers in parenthesis are > the sum of the lines of code of the implementors. Total lines of code > for layout (taking only these most important methods) is 714. I doubt > there are many people who really understand all of this code. > > In SimpleMorphic (Cuis), this calls #layoutSubmorphsIn: (10), > #applyLayoutFrameIn: (11), #layout:in: (24). Total lines of code is > 45. I believe any smalltalker could understand these in just minutes. > > I hope this makes makes it clearer to you what SimpleMorphic is. > > This sounds awesome, Morphics' complexity has long been a sticking point of mine. Thanks for doing this :)

Nov. 7, 2010

Re: [Pharo-project] smalltalk: breaking out of a loop..

by sergio_101

On Sun, Nov 7, 2010 at 11:08 AM, Max Leske <maxleske(a)gmail.com> wrote: > use #dectect: > perfect.. thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Nov. 7, 2010

Re: [Pharo-project] smalltalk: breaking out of a loop..

by Max Leske

use #dectect: On 07.11.2010, at 17:04, sergio_101 wrote: > if i have an OrderedCollection called people.. > > if i have a million ordered pairs in there, and i wanna see af any one > of them (hasTenBucks = true). > > i don't want to iterate all of them, i want to stop when i find that > one hasTenBucks.. > > so in something like: > > people do: [ :person | (person hasTenBucks) ifTrue; [break out of loop] ] > > ideas? thanks! > > -- > ---- > peace, > sergio > photographer, journalist, visionary > > http://www.CodingForHire.com > http://www.coffee-black.com > http://www.painlessfrugality.com > http://www.twitter.com/sergio_101 > http://www.facebook.com/sergio101 >

Nov. 7, 2010

[Pharo-project] smalltalk: breaking out of a loop..

by sergio_101

if i have an OrderedCollection called people.. if i have a million ordered pairs in there, and i wanna see af any one of them (hasTenBucks = true). i don't want to iterate all of them, i want to stop when i find that one hasTenBucks.. so in something like: people do: [ :person | (person hasTenBucks) ifTrue; [break out of loop] ] ideas? thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Nov. 7, 2010

Re: [Pharo-project] PharoKernel #12229

by Adrian Lienhard

On OSX with a recent VM (4.2.5beta1U) the image, PharoKernel-Core-1.2-12229.image, starts but without displaying window. The native menu is populated, but apart from this nothing happens... Adrian On Nov 6, 2010, at 23:11 , Pavel Krivanek wrote: > Hi, > > I uploaded an updated version of PharoKernel. It is now able to load > all PharoCore packages (resultant image included). > > https://gforge.inria.fr/frs/download.php/27904/PharoKernel-1.2-12229.zip > > If you want to use DejaVu fonts, uncomment in the file initCore.st this lines: > > Gofer it > squeaksource: 'DejaVu'; > package: 'DejaVuBitmapFonts'; > load. > (Smalltalk globals at: #DejaVuHolder) installFull. > StandardFonts restoreDefaultFonts. > > Please check the generated PharoCore image and open issues for errors > because it shows that the packages are missing some initialization > code. > > Cheers, > -- Pavel >

Nov. 7, 2010

Re: [Pharo-project] SmalltalkImage

by Benjamin

On Nov 7, 2010, at 4:04 PM, Levente Uzonyi wrote: > On Sun, 7 Nov 2010, Benjamin wrote: > >> >> On Nov 7, 2010, at 10:51 AM, StÃ©phane Ducasse wrote: >> >>> SmalltalkImage current >>> instVarAt: #globals put: SystemDictionary new >>> Something like that. >> >> This code initialize Smalltalk, but I haven't found where Smalltalk >> is stored. >> Smalltalk is not a SmalltalkImage inst var nor class var neither >> Smalltalk class inst var ... >> So I wonder where to find it ... > > Smalltalk is a global. Globals are stored in a SystemDictionary. So > far the only instance of SystemDictionary is the value of [Smalltalk > globals]. Currently Smalltalk is a SmalltalkImage. SmalltalkImage > has an instance variable called globals which holds the > SystemDictionary. So > > (Smalltalk globals at: #Smalltalk) == Smalltalk. > > But SmalltalkImage also understands some of the protocol of > SystemDictionary, because originally Smalltalk was a > SystemDictionary, so you can write this too: > > (Smalltalk at: #Smalltalk) == Smalltalk > > > Levente Thank you for your explanations ^^ Ben > >> >> >> Ben >> >> >>> ? >>> On Nov 7, 2010, at 2:46 AM, Benjamin wrote: >>>> Hi guys, >>>> I wonder how SmalltalkImage create the Smalltalk instance. >>>> Can someone explain me that ? >>>> Thank you >>>> Ben >> >>

Nov. 7, 2010

Re: [Pharo-project] SmalltalkImage

by Levente Uzonyi

On Sun, 7 Nov 2010, Benjamin wrote: > > On Nov 7, 2010, at 10:51 AM, StÃ©phane Ducasse wrote: > >> SmalltalkImage current >> instVarAt: #globals put: SystemDictionary new >> >> Something like that. >> > > This code initialize Smalltalk, but I haven't found where Smalltalk is > stored. > Smalltalk is not a SmalltalkImage inst var nor class var neither Smalltalk > class inst var ... > So I wonder where to find it ... Smalltalk is a global. Globals are stored in a SystemDictionary. So far the only instance of SystemDictionary is the value of [Smalltalk globals]. Currently Smalltalk is a SmalltalkImage. SmalltalkImage has an instance variable called globals which holds the SystemDictionary. So (Smalltalk globals at: #Smalltalk) == Smalltalk. But SmalltalkImage also understands some of the protocol of SystemDictionary, because originally Smalltalk was a SystemDictionary, so you can write this too: (Smalltalk at: #Smalltalk) == Smalltalk Levente > > > Ben > > >> ? >> On Nov 7, 2010, at 2:46 AM, Benjamin wrote: >> >>> Hi guys, >>> >>> I wonder how SmalltalkImage create the Smalltalk instance. >>> >>> Can someone explain me that ? >>> >>> >>> >>> >>> Thank you >>> >>> Ben >>> >> >> > >

Nov. 7, 2010