Squeak-dev December 2002

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456 discussions

[FIX] MoreWeakMsgSendFixes-nk
by ned＠bike-nomad.com 21 Dec '02

21 Dec '02

from preamble: "Change Set: MoreWeakMsgSendFixes-nk Date: 20 December 2002 Author: Ned Konz CS 5005u16-Events introduced a call to a method isReceiverOrAnyArgumentGarbage in Object>>actionSequence that was only understood (much later, after CS 5155WeakMessageSend2-nk-rw) by WeakMessageSends and WeakActionSequences. Unfortunately, if you had an ActionSequence or a MessageSend around in an action map, this would break, as they don't understand isReceiverOrAnyArgumentGarbage. I removed this call from the methods in Object so that any action maps that can answer asMinimalRepresentation will work. This includes: ActionSequence, WeakActionSequence, MessageSend (added), and WeakMessageSend. "!

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[FIX] VMMakerNicerFor3.4-nk
by Ned Konz 21 Dec '02

21 Dec '02

from preamble: "Change Set: VMMakerNicerFor3.4-nk Date: 16 December 2002 Author: Ned Konz VMMaker had a nasty habit of scrolling its plugin lists back to 0 upon selection. This fixes that problem. Also, it adds an open item for VMMakerTool in the WorldMenu. "!

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ReadWriteStream>>asUnZippedStream and .ttf files?
by Ned Konz 20 Dec '02

20 Dec '02

Oddly enough, if you have a stream open on a zip archive, and call asUnzippedStream, it will hand you a stream on the first ".ttf" (usually, TrueType Font) file in the zip. This is hardly a general-purpose need. Do we still need this? It sounds like a patch to get the FileList to do something special. I could see other behavior, like if you had a zip with a single member it could pass you the stream for that member. -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE

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[Q]: Version Confusion
by Russell Steen 20 Dec '02

20 Dec '02

I've been programming in squeak for about two years, but only recently subscribed to the list. I have been using 3.2. There is a lot of talk about 3.4, but I cannot find it on the squeak.org site... Is 3.4 the standard, and if so where is it located? ---- Russell D. Steen

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Re: Subjective Squeak
by Daniel Vainsencher 20 Dec '02

20 Dec '02

Memory is cheap, and cheaper every day. For an OS, it gets unfixably stuck too often. We have issues to solve here much before we need layers. Daniel Anthony Hannan <ajh18(a)cornell.edu> wrote: > Daniel Vainsencher <danielv(a)netvision.net.il> wrote: > > I always have two squeak images running. > > Multiple images is very wasteful of space. Think PDAs. Think of the > all classes and methods that are duplicated in each image. Also, I like to > think of Squeak as an operating system. Usually you only run one > operating system. > > Cheers, > Anthony

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Re: Subjective Squeak
by Daniel Vainsencher 20 Dec '02

20 Dec '02

Ah here I definitely disagree - I think this is a huge landmine. Whether people come to use a layered system for it's real benefits or not, I think it would be a disaster if people use it to ignore trivial incompatibilities between packages. Remember that one of the great benefits of free software development is the testing. It's a critical part of the magic. For a modular environment, as Squeak is already headed to be since the day SqueakMap is online, integration testing is a large part of the issue. Where two packages need significantly different functions, they should be using two separate, mutually neutral actual mechanisms. Where two packages need slightly different versions of the same thing, this needs to be visible, slightly painful for all involved, until it is resolved. I'll give you a concrete example - if each package, as part of it's layer, should bring in it's own version of the TWM>>openMenu, everything would "work", and the user might go mad before understanding why it keeps changing on him. The solution is to find these areas of conflict, however small, and redesign them for cooperation. Not to apply a one-size-fits-all plaster that allows all packages to ignore one another. The real solution is for package maintainers to avoid patching other packages, in your package, instead submitting patches to the upstream packages maintainer. And concurrently, to give the user tools to notice and control when this is happening. Daniel > I do much the same thing as you do. However, I wasn't thinking about > development images; my "mail" image might have other packages that help > me use Squeak as a media environment (eg: Connectors). These packages > may be very well tested with the base image, but might step on each > other's toes. Even if things seem to work, I can't be sure that things > won't explode later (without looking at all the methods in each add-on > changeset to make sure that they don't appear in another add-on changeset). > In other cases, the breakage might be immediate and evident. Environments > would address this problem. > > Joshua

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[Q] Connectors labels (was [Q] perform: selector)
by David Faught 20 Dec '02

20 Dec '02

On Friday 20 December 2002 09:15 am, Ned Konz wrote: >David, are you using Connectors still? There isn't a general purpose >Morph #addLabel: method. > >#addLabel: on NCConnectorMorph takes an event, not a string. > >If you just want to add a label with an arbitrary string, you could >use #addLabel:at: or #addLabel:near: and pass the connector's >midpoint (or end, or whatever) as the point. Ned, I meant to ask you, why do only the NCConnectorMorph objects have the #addlabel:near: and #addLabel:at: methods? In more general terms, why would I want to label only the connections in a schematic drawing and not the things that are being connected? I thought about this earlier, but just went ahead and defined the methods in my own subclasses. I suppose I could just as easily have done it once for the Morph class. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

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RE: TimeStamp is part of SM?
by Norton, Chris 20 Dec '02

20 Dec '02

I have also submitted a Timestamp changeset to the list on more than one occasion. My version was well tested, but did not include Timezones. Cheers, ---==> Chris PS> I *much* prefer Timestamp to DateAndTime (the ANSI name).

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Re: Subjective Squeak
by Anthony Hannan 20 Dec '02

20 Dec '02

Daniel Vainsencher <danielv(a)netvision.net.il> wrote: > I always have two squeak images running. Multiple images is very wasteful of space. Think PDAs. Think of the all classes and methods that are duplicated in each image. Also, I like to think of Squeak as an operating system. Usually you only run one operating system. Cheers, Anthony

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[Q] perform: selector
by David Faught 20 Dec '02

20 Dec '02

On Friday 20 December 2002 20:18, Adrian Lienhard wrote: >Just having scanned your mail, I estimate that it should say (note >the right parenthese): > > self addLabel: (self perform: aSelector) asString. > >you may probably want to send the message named aSelector first and >then transform the resulting object to a string. You are correct! This works fine. Every time I think I have Squeak's order of operations figured out, I get surprised. Maybe Squeak is more closely related to Lisp than I thought ... __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

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