Squeak-dev May 2007

squeak-dev@lists.squeakfoundation.org

150 participants
233 discussions

veryDeepCopy, ImageSegments, and actionMaps
by Ned Konz 17 Aug '23

17 Aug '23

Any Object can have dependents whether or not it has an instance variable to keep track of them (these are kept in the DependentsFields class variable of Object). The only class that keeps its own dependents is Model. Any Object can have an actionMap. These are supplied by EventManager class by default, and are stored in the ActionMaps class variable of EventManager. The only class that keeps its own action maps is Morph. When we veryDeepCopy an object we also copy the global dependents (see DeepCopier>>fixDependents). However, we don't copy the actionMap in those cases where it's held by the EventManager class. When we file out an object that uses DependentsFields out into an ImageSegment, we also file out the dependents (see ImageSegment>>dependentsSave:) if it's in a project. We do this by adding a project parameter called #GlobalDependentsInProject. However, we don't file out the actionMap in those cases where it's held by the EventManager class. My question is this: should we fix these behaviors (copying and serialization) to include these "global action maps" just like we already include the "global dependents"? Or should we discourage the use of the "global action maps"? -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE

3 2

Trying to build SerialPlugin for IrDA under MPW (MacOS 8.6)
by Hans-Martin Mosner 24 May '12

24 May '12

Hi, I recently got a serial IrDA adapter and wanted to play around with it under Squeak. This adapter has a baudrate switching mechanism which depends on toggling the DTR and RTS lines in the correct sequence. To support this, I wanted to build a new SerialPlugin with an additional primitive. However, the plugin as built with MPW does not seem to be accepted by the VM, which still uses the internal plugin in all cases. I've tried placing the plugin in a 'Plugins' subfolder of the VM's folder, and then directly into the VM folder, without any success. I have considered placing debug outputs in appropriate places in the VM, but building a complete VM with MPW is not easy - I would have to create an MPW makefile for the whole shebang, which is more work than I can invest at the moment. Does any of you Mac aficionados have an idea where the problem could be? I have appended the plugin and corresponding source files in a ZIP file (it's not big) so if you want to try it out you could do it right now :-) BTW, would it make sense to incorporate support for switching serial port parameters of an open port into the standard plugin? Closing and opening a port just to change the baud rate seems a little overkill... Cheers, Hans-Martin

6 14

Squeak download stats?
by Thomas A Petersen 27 Feb '11

27 Feb '11

Greetings, FWIW, I download beta/gamma versions about once a month to test. Those that prove stable get my influx of current work for day to day use. I download the official version and move to it if it proves stable for my uses until about the middle of the next beta cycle. I also have a couple of friends that I pass the stable specialized images on to about once a year. A couple of other people I know pull the distribution for Windows and/or Linux when I let them know there is an official upgrade. Thanks again for a great place to think and learn, tap

6 5

TextMorph behavior
by Marcus Pedersén 18 Jan '11

18 Jan '11

Hi! I have been trying class TextMorph out for making an editable textfield for my GUI. One thing I can't figure out is how to make the text "grow" horisontaly when you write instead of verticaly. I am after the behavior similar to the spotlight search text field in mac. If you write loads of text the oldest text "dissapear" (visualy) on the left hand. I have tried autoFit: false and wrapFlag: false without any desired results. Doesn't TextMorph contain this functionality from start? Do I need to subclass and write the function from scratch? Many thanks in advance! Marcus

5 5

Loading the OpenGL package (was: Games with Squeak)
by Diego Fernandez 17 Apr '09

17 Apr '09

On 10/13/06, Andreas Raab <andreas.raab(a)gmx.de> wrote: > Edgar J. De Cleene wrote: > > Andreas, as you see no package said " OpenGL" in the provided link. > > I think you should learn a little about using Squeaksource: "Versions" Ouch! I missed the package too, because in www.squeaksource.com usually there is one MC package per "Project". Anyway, I'm trying to load OpenGL-ar.36.mcz in Squeak 3.9 but I get: Syntax Error: glBindBufferARB(target, buffer) "This method was generated by OGLExtManager" <Argument expected ->apicall: void 'glBindBufferARB' (long ulong)> Any clue on how to solve this error? (It looks that it's created with a "special" compiler) And another question... As I wrote in the previous mail I've started to do some SDL bindings. But I think that maybe it's a waste of time, since today nearly all machines have OpenGL, and Squeak already has objects to deal with sound and joysticks.... so instead of using SDL for 2D graphics is better to use OpenGL for the same thing, what do yo thing about that? Cheers, Diego

10 19

Linux and ttyUSB0
by Jon Hylands 13 Jan '09

13 Jan '09

Hi everyone, On my current robotics project, I'm using a gumstix verdex to talk over a USB to serial converter chip (FT232) to a serial bus. My brother Dave made up a new kernel driver for the gumstix, and when I plug in the chip it registers itself as ttyUSB0. For work I've done previously on Squeak on the gumstix, I've used standard serial ports, which map to ttyS0, ttyS1, ttyS2, etc, which correspond to port 0, 1, and 2 when I open the Serial Port in Squeak. However, I have no idea which port number ttyUSB0 corresponds to... Anyone got any idea? Thanks, Jon -------------------------------------------------------------- Jon Hylands Jon(a)huv.com http://www.huv.com/jon Project: Micro Raptor (Small Biped Velociraptor Robot) http://www.huv.com/blog

11 24

RE: [ANN] ICal occurrence API
by J J 30 Dec '07

30 Dec '07

>From: "Alan Lovejoy" <squeak-dev.sourcery(a)forum-mail.net> >Reply-To: The general-purpose Squeak developers >list<squeak-dev(a)lists.squeakfoundation.org> >To: "'The general-purpose Squeak developers >list'"<squeak-dev(a)lists.squeakfoundation.org> >Subject: RE: [ANN] ICal occurrence API >Date: Mon, 28 May 2007 12:54:48 -0700 > >I fully intend to have a look at your code--after I've completed my >implementation. However, I don't plan on implementing a parser for >iCal--the only goal is to be able to specify/represent (and fully and >correctly implement) the iCal rule model. I didn't either. The iCalendar package made by Philippe does all that, it just didn't do anything with the recurrence rules once made. > Actually, the Chronos recurrence >rule model goes beyond what can be specified using the iCal rule >model/notation. Using an algebra enables support for logical negation and >disjunction, among other things (consider what Chalten does with its >TimeLineFilter, for example.) That sounds cool. I went for the Recurrence rule standard which is ugly, ambiguous and, though my test coverage didn't point anything out, I think even self-contradicting. I don't know anything about recurrence rule algebra but it sounds good. :) >I'm also working on full support for business date arithmetic. I intend to >meet or exceed the capabilities offered by jFin >(http://jfin.org/date_adjustment) or ObjectLab >(http://objectlabkit.sourceforge.net/), and to use the data provided by >FinancialCalendar.com (http://financialcalendar.com/). Very cool. >As for "thunder stealing," that goes with the territory when two or more >projects are in the same functional domain. My goal is to implement the >world's best date/time library in any language--and I've been working hard >at it since October 2004. I feel I've already achieved parity with >anything >else out there. Now it's time to go to the next level. I wasn't mad or anything. Just joking because of the timing of it. :) But yes, now that you point it out, it would make more sense that the recurrence calculation code be with a time library, whether you use anything of mine or not. I learned a lot in the doing. >But, since my main motivation for making Chronos the best date/time library >in the world is to help promote Smalltalk, I actually welcome any and all >contributions by others to that goal. And based on the description, your >iCal engine certainly seems to be a worthy contribution. Thanks. I don't know how much of my stuff will be usable for you. I got the approach from Haskell. Basically the strategy is that the frequency creates an infinite list of "periods" which are the same thing as a TimeSpan but with a different interface. All constraints (e.g. BYDAY) are applied to the period stream they get, and they generate the next period stream from it. Once you get through all the constraints you should have the dates. >Working together, we can leave Smalltalk's competition in the dust. And >inspire those working on Smalltalk projects in domains other than >dates/times to do the same. > >Go Smalltalk! > >--Alan That is what I want as well. :) _________________________________________________________________ PC Magazines 2007 editors choice for best Web mailaward-winning Windows Live Hotmail. http://imagine-windowslive.com/hotmail/?locale=en-us&ocid=TXT_TAGHM_migrati…

3 2

What is the proper way to get the Refactoring Browser in 3.9
by Hilaire Fernandes 07 Dec '07

07 Dec '07

I have installed RB and AST from SqueakMap for 3.9, but I have many random problem swith features not working as hierarchy browsing, simple editing in the browser, refactoring tools as renaming methods. These problems happen more or less randomly. Hilaire

4 13

[ANN] SIXX 0.2b is now available on all Smalltalk dialects
by Masashi UMEZAWA 25 Jul '07

25 Jul '07

Hi all, I've recently updated SIXX to 0.2b. This is a minor version up, but introduces CIXX (Compact SIXX) for people who are conscious about performance. - Squeak - SqueakMap - ftp://swikis.ddo.jp/SIXX/squeak/SIXX20070420.sar - VisualWorks - Cincom Public Store Repository - ftp://swikis.ddo.jp/SIXX/vw/SIXX-VW0.2-20070420.zip - Dolphin Smalltalk - ftp://swikis.ddo.jp/SIXX/dolphin/SIXX0.2-Dolphin20070420.zip About SIXX: http://www.mars.dti.ne.jp/~umejava/smalltalk/sixx/index.html Other features are listed at: http://swikis.ddo.jp/umejava/40 Enjoy! -- [:masashi | ^umezawa]

4 6

SqF feedback
by stéphane ducasse 21 Jul '07

21 Jul '07

Hi I'm reposting this email since I have the impression that the point was lost in its original thread. ... - Normally after election, politicians do not really listen anymore and I would like to do the inverse. I would really like to know what you expect or would like to see put in place. We have some ideas (bounty system, better process) and I will really listen what the new boarders want to do (I'm even eager to see that :)). We do not have the monopole of good ideas, so if you have some points that you would like to see happening please mention it. Stef

9 10

Jump to page: