Squeak-dev September 1998

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108 participants
197 discussions

Re: dazed by SortedCollection
by Jon M. DeLaurier 01 Sep '98

01 Sep '98

Subject: Re: dazed by SortedCollection Sent: 1/09/1998 9:28 To: squeak(a)cs.uiuc.edu Thanks for these responses. I did not clue to the performance requirements of real-life applications. All of mine are artificial and academic. The only performance enhancement that I am concerned about is to obtained more cycle speed. Jon >Subject: Re: dazed by SortedCollection >Sent: 31/08/1998 14:01 >Received: 31/08/1998 18:41 >From: Patrick Logan, patrickl(a)servio.gemstone.com <snip> >For example, the #copyFrom:to: method makes an exact copy of the >elements between some start and end index. The same sortBlock is used, >so the ordering is guaranteed to be identical. The greater the number >of elements in the copy, the more significant is the penalty to >re-sort the elements that are known already to be sorted. > >Better to be able to copy the collection asserting that the order will >be correct, without the performance penalty. > >-- >Patrick Logan mailto:patrickl@gemstone.com >Voice 503-533-3365 Fax 503-629-8556 >Gemstone Systems, Inc http://www.gemstone.com >[snip] > >> I am dazed and confused! Why would you want to add to a sorted collection >> without sorting? It seems to me to be a canidate for the more general >> collection class. So again why have an addLast: method in the >> SortCollection >> class?? > >How about as a performace optimization when you know the item your adding >*should* come last? (a logging function for example) Or maybe if you >wanted to delay sorting until a specific time, but wanted to stick the >elements in anyway. As long as when you *get* the items, or otherwise >manipulate the collection, do you need it to be *actually* sorted. "Lazy >sorting", if you will. > >Cheers, >Bijan Parsia ------------------------------------------------------------------------- | Jon M. DeLaurier | vox : 250.656.6176 | | 2209 Bradford Av | | | Sidney, B.C. V8L2C8 | | | Canada | email: jdelaurier(a)vanisle.net | ------------------------------------------------------------------------- | It is always darkest just before it gets black. (Dave Broadfoot 1996) | -------------------------------------------------------------------------

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Re: Base image, Windows look
by Brian Klump 01 Sep '98

01 Sep '98

> I must have missed the annoucement of Chesse 5. > Is there already someone working on a Unix port ? > I would prefer some free alternative to Motif. > Gtk for example (www.gtk.org) is getting very popular these days. > I wonder, would something like wxWindows be a viable alternative to Tcl/Tk? I'm not sure offhand if it has Mac support though. :/ Also, Lesstif has come along significantly...so maybe a Motif port wouldn't necessarily be a bad thing. Just some ideas...btw, I think Cheese looks really impressive. -Brian Go Smalltalk! _________________________________________________________ DO YOU YAHOO!? Get your free @yahoo.com address at http://mail.yahoo.com

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ParagraphEditor goodie
by Stefan Matthias Aust 01 Sep '98

01 Sep '98

Hi! After a day of cursing about the strange behavior of the Squeak paragraph editor, I changed/extended the code a little bit. Attached are two patch files, which I'd like to provide here for the public domain. I'd love to see this getting integrated in the base system. The first patch will fix some problems with the key bindings on PC systems and add better block selecting. The second patch adds a new inst var to ParagraphEditor which is used to save an escape state. This state is used to provide an additional way to use the enclosing key feature. Instaed of Cmd+[ you can now also use ESC [. Have fun, bye Content-Type: application/octet-stream; name="ParagraphEditor2.1Sept411pm.cs" Content-Disposition: attachment; filename="ParagraphEditor2.1Sept411pm.cs" Attachment converted: Cog:ParagraphEditor2.1Sept411pm.cs (????/----) (0000E42B) Content-Type: application/octet-stream; name="ParagraphEditor1.1Sept411pm.cs" Content-Disposition: attachment; filename="ParagraphEditor1.1Sept411pm.cs" Attachment converted: Cog:ParagraphEditor1.1Sept411pm.cs (????/----) (0000E42C) -- Stefan Matthias Aust // Are you ready to discover the twilight zone?

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Re: Base image, Windows look
by Mark Guzdial 01 Sep '98

01 Sep '98

>For some background, I'm working at a small company which is currently >using Tcl/Tk to create the UI for a 3D graphics app (human simulation) on >both Unix and Windows. In addition to being fairly portable and >supporting Windows/Motif/Mac look 'n' feel, Tcl/Tk is also free (as is >Perl/Tk and Python/Tk), which is part of why we chose to use it. According to what I read on the Python GUI-SIG, the Mac version of Tk is seriously crippled. Callbacks don't work appropriately, and the widgets have a memory leak. That makes a Squeak/Tk port pretty unappealing. Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

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Re: Base image, Windows look
by Georg Gollmann 01 Sep '98

01 Sep '98

At 3:14 Uhr -0400 01.09.1998, Doug Way wrote: >Still, after playing around with Squeak for a few months, there are some >things I'd like to see moved to the base image. Something >language-centric like exception handling, it seems sort of ridiculous to >keep as an external goodie. Though I suppose it makes sense to keep it >external for awhile to get a feel for which exception mechanism is most >appropriate for Squeak, and then add it to the base image later. (Maybe >that's the current plan? It shouldn't go in until it's ready, of course.) Please note that Squeak has perfectly usable error handling already (BlockContext>ifError:). Georg ---- Dipl.Ing. Georg Gollmann TU-Wien, EDV-Zentrum phon:(+43-1) 58801 - 5848 fax: (+43-1) 587 42 11 mail:gollmann@edvz.tuwien.ac.at http://macos.tuwien.ac.at/Gollmann.html

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Re: Base image, Windows look
by stp＠limbo.create.ucsb.edu 01 Sep '98

01 Sep '98

> Has anyone tried creating Windows-look > widgets with Morphic? I'm thinking about trying it myself (subclassing > from Morph, etc.) but I wouldn't mind if some other folks pitched in, too. Sam Adams and Andreas Raab made a pretty good first cut at a Windoze LookAndFeel for Squeak 1.31. Look in ftp://st.cs.uiuc.edu/Smalltalk/Squeak/Goodies/Windoze-1-3-3.cs and related files. stp _ Stephen Travis Pope _ Center for Research in Electronic Art Technology (CREATE) _ Dept. of Music, Univ. of California, Santa Barbara (UCSB) _ stp(a)create.ucsb.edu, http://www.create.ucsb.edu/~stp/

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Mail to disney?
by Christopher Oliver 01 Sep '98

01 Sep '98

In respect for the net tradition of not broadcasting personal correspondence, I try to handle personal responses and disputes via private mail. How does one directly target a person at Disney? I've nothing but good things to say in my messages, but a message to <random>@bobo.rd.wdi.disney.com awaits delivery. As a mail administrator, I find it questionable to make a habbit of speaking with ones ears plugged. Thoughts? Ideas? -- Christopher Oliver Traverse Internet Systems Coordinator 223 Grandview Pkwy, Suite 108 oliver(a)traverse.net Traverse City, Michigan, 49684 Dedicated to perfecting the cluttered desktop metaphor.

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