Squeak-dev November 2001

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174 participants
374 discussions

[FIX] TransformMorphRotationFix
by Joshua Gargus 02 Nov '01

02 Nov '01

from preamble: "Change Set: TransformMorphRotationFix Date: 1 November 2001 Author: Joshua Gargus MatrixTransformMorphs deal with center of rotation differently than other morphs, but forgot to take this into account in #setRotationCenterFrom:. This is now fixed."!

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Smalltalk/X (ST/X) version 4.1.2 license change
by John M McIntosh 02 Nov '01

02 Nov '01

Some of you might find the following interesting. Mmm but you should read all of the licensing material first. >Welcome to Smalltalk/X (ST/X) version 4.1.2. > >Most important first: we have changed our licencing policy; >ST/X may now be used - even commercially - without any license fee. >This shall help to spread the Smalltalk language and strengthen the >Smalltalk comunity. > >>>> Please read the additional licence conditions at the end of this >>>>document. <<< > > > >However, there is no - I repeat NO - support, or maintenance guarantee >whatsoever; unless you have a maintenance contract with eXept. > >For customers which require support, early bug fixes, maintenance >and early new features, eXept still provides a maintenance contract at a fee >which is comparable to the previous commercial license fees. > > >For pricing information please contact us at info(a)exept.de. -- -- =========================================================================== John M. McIntosh <johnmci(a)smalltalkconsulting.com> 1-800-477-2659 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ===========================================================================

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libcurl?!
by goran.hultgren＠bluefish.se 02 Nov '01

02 Nov '01

Hi guys! When looking for ammo :-) in "the GPL/LGPL duel" on the net I stumbled upon cURL and libcurl: http://curl.haxx.se/libcurl/ Could this be a good plugin candidate? It sounds super to me, has a good license (MIT, which I guess is ok with SqueakL, oooh, here we go again... ;-) and seems to be very easy to interface to, take a look at the C-api. Anyway, fishing a bit before I try myself. There are so many other good slang-wielders out there but of course, now that VMMaker (thanks, Tim) is here I have no good excuse to stay out of the plugin business, right? :-) regards, Göran PS. Plugins for solid good libraries is IMHO a very simple way of making Squeak better. We don't HAVE to make everything ourselves, right? :-) Even if it is fun... DS

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Command Key Actions on NT
by frippiat.j＠kst.be 02 Nov '01

02 Nov '01

I use Squeak on NT and the Command Key sequence "Cmd-6" (and alike) seems not to work. Is there a way to make it work ? Thanks. Joseph

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[ENH] filterOrder-ls
by Lex Spoon 02 Nov '01

02 Nov '01

This idea came up when people complained that Celeste's filtering was *sometimes* slow... Why should people have to worry about it? (Although note: in the *worst* case, Celeste still chugs through 20k messages in around 5-10 seconds. That's pretty reasonable if it doesn't happen often, IMHO.) This changeset only applies if the main FilteringCeleste changeset has been loaded. -Lex from preamble: "Change Set: filterOrder-ls Date: 2 November 2001 Author: Lex Spoon Makes Filtering Celeste be smart about the order it executes filters: run category filters first, because they are fast, and because they tend to narrow down the search space quickly. Now users usually don't need to be careful about the order of their filters."!

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RE: What's "Linking" under the GPL?
by Jarvis, Robert P. (Contingent) 02 Nov '01

02 Nov '01

> -----Original Message----- > From: goran.hultgren(a)bluefish.se [mailto:goran.hultgren@bluefish.se] > Sent: Friday, November 02, 2001 3:32 AM > > <snip!> > I am sorry if I came on too "hard", it wasn't on purpose. I > have reread your original post and realized I might have > reacted too strongly. I apologize for that. That's OK - no hard feelings here. > What I react to is more the association of GPL with communism (in it's > negative forms). It may well be that the open-source software community has certain similarities to Marx's utopian vision, albeit unintentionally. "From each according to his abilities, to each according to his needs" seems to be somewhat descriptive of the open-source movement. Bob Jarvis Compuware @ Timken

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RE: [OT] GEM, Blitter, and Atari ST (was: RE: Debian and SqueakL revisited again)
by Peter Crowther 02 Nov '01

02 Nov '01

> From: Kevin Fisher [mailto:kgf@golden.net] > I still have ancient computer magazines that mention the > "Lorraine", the former codename for the first Amiga. I still have an Amiga 1000, one of the first batch of ten development boxes that got shipped into the UK. *Way* ahead of its time, with huge hardware acceleration to help with the graphics --- a blitter, line drawer and polygon filler on one chip, and a scan-driven video coprocessor on another that allowed you to change I/O register contents as the scan passed a given point on the screen. I still miss the ability to slide entire *screens* of information up and down the monitor smoothly. Oh, and it had a decent multitasking OS instead of a DOS clone :-). I think the Amiga illustrates an important point for the thread about 'modern' games. The designers went to a lot of effort to push common operations into faster blocks --- in the Amiga's case, into hardware. This cost CPU cycles, as the coprocessors stole from the processor bandwidth (and the 68000 had no cache). Squeak can do the same by pushing common operations into faster blocks --- in Squeak's case, into plug-ins that may then use native hardware support. - Peter

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Re: [ENH][Modules] Projects vs Modules, was: Delta Modules
by Henrik Gedenryd 02 Nov '01

02 Nov '01

goran.hultgren(a)bluefish.se wrote: > Projects vs Modules > ---------------------- > > I have read the stuff on the Swiki and my naive view is this: > > A Module is a published piece of code. Right, an abstract (piece of a) program with no reference whatsoever to how it is represented, run, or anything. Effectively a sort-of-mathematical abstraction. > It is not a "binary deliverable". > But you can download/load/activate them in your environment. I think it > is good that they are not binary and I think it would be much harder to > build such a system with the functionality that Henrik have put in there > if they were binary. Being non binary also makes it possible to > manipulate these things more easily. On the other hand the repository is > a pluggable component so that we can have different kinds of > repositorys. For example, we could have a repository implementation that > uses ImageSegments or something to increase loading speed. > A Project is more of a published binary deliverable. It surely can/could > contain one or more modules but it also contains live instances etc. It > is in my eyes analogous to the "binary download" you see everywhere on > the Internet - just click and go. Typically not used by developers when > they need a module to use in their own project but more for Squeak > endusers "surfing for content". I would like to distinguish Projects from Components--a Component is a concrete representation of the code in a Module, that can be dynamically loaded and unloaded. (Components also imply dynamic hook-up and such, which is a much smaller problem in Smalltalk than in e.g. C++, which has no standard representation for program meta-objects. Smalltalk already has all/most of that.) So a Component = a Module or Modules as concretely represented in Squeak (class and compiledmethod objects, etc.). A Project is more than just this. > A Project is more of a published binary deliverable. It surely can/could > contain one or more modules but it also contains live instances etc. I assume what you read was <http://minnow.cc.gatech.edu/squeak/2058>. Importantly, Projects have contents, as in "content provider", not just code (but it may contain code). This is what you call live instances, and I think this is the essential difference between Projects and Components. What projects really are today is kind of vague, but the best notion I've been able to come up with is "the kind of thing Alan wants kids to create with their DynaBooks". But Alan/SqC also seems to have frequently changed their mind about^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H refined the notion of what Projects are. I proposed Creation as the best name I could come up with instead of Project, which is extraordinarily vague and generic for such a specific use, and gives poor hints to what this "thing" is and does. A Creation is a collection of "hand-made" objects that someone has created (with a nod to Koestler with the colored planes). See the above page for a discussion of this. As I see it, as concepts, Components are layered on top of/incorporate Modules, and Creations extend Components to include hand-made objects. Eventually. _____ a Creation ( ) ¨¨|¨¨ _____ Components ( ) * (0 or more) ¨¨|¨¨ _____ Module(s) ( ) + (1 or more) ¨¨¨¨¨ > Example: > > I write a cool Morphic game including classes for general animation. The > code is composed of a Module representing the Game itself with 2 more > general submodules for Animation and Sound. They are not really blessed > to go into the "base image" so I put everything in "People/gh/CoolGame". > Ok, I upload it all onto the virtual module server (more on that later) > so that people easily can load this module. Yes, this is enough if all your objects can be programmatically generated by your code. > > But I also set up a Project where I start the Game up with a centered > window and I also type in a todo-list in an open Workspace. Finally I > smack in a nice looking background image and then publish the Project > onto Bobs superswiki AND also to another superswiki in Sweden containing > only Morphic games (just fantasy). These are "hand-made" (ie. non-programmatically generated) objects, which code isn't sufficient for creating (without taking extreme measures). At least code isn't convenient for creating them. You need the ability to conveniently (distribute and) load _objects_. This is the added role I assign to Creations. I think Creation also implies this having to do with "hand-made" objects (vs. code-generated). > So, developers typically load the module to get to the code and perhaps > reuse my Animation module or just check out how the game was done. Right, just to get the code, Modules are enough. Components/image segments may be convenient (think the 1MB refactoring browser). > End > users typically find the project and loads that - it probably is faster > and they get a "just point and click" experience. They get the modules > with the project, but that is just a bonus. Right, this to get the non-code objects too. In general, I think Repositories should be a general facility for conveniently storing and accessing anything Squeak-related, including e.g. Projects/Creations, so that you can just give a path to a Project, or help pages, or you personal preferences file, or whatever, and Squeak will be able to locate the files for you. > regards, Göran So what we really need is for SqC to agree with this ;-) Henrik

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RE: What's "Linking" under the GPL?
by goran.hultgren＠bluefish.se 02 Nov '01

02 Nov '01

Hi Robert (and all)! "Jarvis, Robert P. (Contingent)" <Jarvisb(a)timken.com> wrote: > > -----Original Message----- > > From: Andrew C. Greenberg [mailto:werdna@mucow.com] > > Sent: Thursday, November 01, 2001 8:05 AM > > > > On Thursday, November 1, 2001, at 04:00 AM, > > goran.hultgren(a)bluefish.se wrote: > > > > > I do understand your observation but honestly - all these > > > comparisons between FSF/GNU/Richard Stallman and Communism/ > > > Soviet Union are: > > <snip!> > > > > Well, not to support the analogy, but there is little doubt > > that "free software" engineered so you can't do things with > > it isn't particularly free. > > Andrew, > > Once again you have clearly and rationally stated that which I am too > emotional or inarticulate to say myself. Thank you. I am sorry if I came on too "hard", it wasn't on purpose. I have reread your original post and realized I might have reacted too strongly. I apologize for that. I just feel that the comparison with the old Soviet union is quite unfair, not because of your reasoning - the analogy is in fact quite ok from a logical perspective - the GPL does definitely have a lot more clauses/rules than say BSD/MIT. What I react to is more the association of GPL with communism (in it's negative forms). Anyway, sorry again! > Bob Jarvis > Compuware @ Timken regards, Göran

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[Q&D] Windows Swiki Watch
by G.J.Tielemans＠dinkel.utwente.nl 02 Nov '01

02 Nov '01

Now and then (for example when I upload/download big files to quick) my Swiki-servers (NT or Win98) do no longer answer my page-requests. Kill & restart the squeak/swiki-process solves the problem without any damage. I am not a NT-system-manager but just an out of the box user... Until I have time to setup ActivePerl to do this "in the Swiki documented way".... To let the PC do this monitoring and restart unattended, I did arrange this freeware combination: ----------------------------------------------- 1. install your Squeak/Swiki 2. start your Squeak/Swiki 3. press the start-server-button 4. THEN PRESS (when the start-button gets red) the save&exit button. (everytime you start from now on this squeak/swiki, the server function now also starts automatically) 5. download & install from http://www.ntutility.com/freeware.html the free product Active Server Watcher (482 Kb) 6. download & install from http://www.koeltzsch.com/Software/software.htm the free program KillProcess (32Kb) 7. create a textfile named reset.bat with these two lines: killprocess.exe /K squeak.exe squeak.exe squeak.image (add pathnames where necessary, also for the image-file BUT NOT for the squeak.exe in the kill-line) (Tip: sometimes the second line seems not to start, therefor I did implement silly lines in between, like several "show dirs" and it was solved.) 8. start ASW (it will show up as a globe-icon at the bottom right) 9 doubleclick the icon 10. create under Resources the address of your swiki, include that active port you did choose for your swiki, for example http:\\216.203.234.125:8888 11. checkmark the box for "Run external file" 12. fill in the textbox for the frequency of the checks (every 10 minutes?) 12. fill in the name of your reset.bat file, include the path for that file 13. sit and wait, your swiki should start automatically after 10 minutes (or press: Check Resource Now!) 14. try to make your swiki idle (doing it on purpose as user is very difficult!!) and see if it reboots automatically It works for WinNT and Win98

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