Squeak-dev August 2000

squeak-dev@lists.squeakfoundation.org

130 participants
418 discussions

RE: Browser plugin (was: Re: Mac 2.8 Browser plugin)
by Torsten.Bergmann＠phaidros.com 31 Aug '00

31 Aug '00

My first squeaklet loads an external segment (a tetris game) from the web: http://software.freepage.de/cronos/squeak/tetris.html Any testers ? Torsten

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RE: Mac 2.8 Browser plugin
by Bert Freudenberg 31 Aug '00

31 Aug '00

On Thu, 31 Aug 2000, Baveco, Hans wrote: > Hi, > Using the plugin installed last week, in my browser MSIE 5 (NT4) the > debugger popped up, with > MessageNotUnderstood: / > when apparently compiling the following String: > > 'scene _ B3DScene withoutQuestionsFrom3DS: (ThreeDSParser parse: > (FileStream requestURLStream: ''squeak.3ds'') accept: > application/octet-stream). Karl is playing with the stuff right now - you can see his progress if you go to http://members01.chello.se/karl.ramberg/plugin3ds.sts and hit reload every other minute ;^) -- Bert

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Newbie morphic question - events in a ScrollPane?
by Peter Munro 31 Aug '00

31 Aug '00

Hi, I see how to instantiate an AlignmentMorph so that I can drag & drop morphs into it and remove them from it. But if I embed that AlignmentMorph into a ScrollPane, or rather, its 'scroller' (TransformMorph), things go awry. I can drag items into the embedded AlignmentMorph and scroll around it, but I can no longer drag items out. A mouseDown seems to have no effect - or at least doesn't pick up the submorphs as it otherwise would have. Can anyone offer advice on the best way to handle events, and in particular drag-and-drop, within a ScrollPane? ie, what methods do I need to implement (eg if I subclass ScrollPane)? Many thanks, Pete

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Re: Browser plugin (was: Re: Mac 2.8 Browser plugin)
by Bob Arning 31 Aug '00

31 Aug '00

On Thu, 31 Aug 2000 16:43:11 +0200 (CEST) Bert Freudenberg <bert(a)isg.cs.uni-magdeburg.de> wrote: >Well, Squeaklets are intended to be viewed with a browser. OTOH, there's >no definition of a "Squeaklet" yet. For now, it's just some Smalltalk code >that is sent around ... > >We could make the #requestURLStream switch to normal fetching when running >in a stand-alone Squeak, though ... In the spirit of write-once-run-anywhere, I think that's a good idea. While many folks will find the browser mode a good one, I hope we don't end up requiring the use of IE/netscape/whatever. Cheers, Bob

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Re: Mac 2.8 Browser plugin
by Karl Ramberg 31 Aug '00

31 Aug '00

Hi, I made a plugin test on this page: http://members01.chello.se/karl.ramberg/ It loads a 3D squeak logo (squeak.3ds) and spins it round so I guess Squeak3D is convenient. I know spinning stuff is annoying but I just _had_ to do this :-) Enjoy Karl

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[VM][2.8pre2] Bug in Socket code?
by Bert Freudenberg 31 Aug '00

31 Aug '00

Hi Ian, there is a bug somewhere in the socket stuff. My Comanche-server, based on a Squeak2.7 image, seems to run fine. My PWS server, which is a 2.2 image, starts up fine, serves requests for a while, but after a couple of minutes crashes like this: ---------------------------- aioHandle: bad match 9 (nil) 0x80cf578 Segmentation fault 1081161080 Socket>waitForDataUntil: 1081160988 Socket>getData 1081160872 PWS>readRequest 1081160464 PWS>initializeFrom: 1081160596 [] in >serve: 1081160372 BlockContext>ifError: 1081160280 >serve: 1081159540 [] in >loopOnPort:loggingTo: 1081159656 [] in BlockContext>newProcessWith: ---------------------------- This same image (that's the gsug swiki, also sqfixes archive) used to run fine over months with a 2.7VM+Lex's fixes. bert.balloon ~ > uname -a Linux balloon.cs.uni-magdeburg.de 2.2.14-5.0smp #1 SMP Tue Mar 7 21:01:40 EST 2000 i686 unknown -- Bert

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Accessing primitives (was Re: [UNIX] [BUGS] [FIX] headless vm, small fixes)
by Mats Nygren 31 Aug '00

31 Aug '00

Ian Piumarta <Ian.Piumarta(a)inria.fr> wrote: > > Surely, simply using the table in sqNamedPrimitives.h in the way it is > > intended to be used will do this? > > I've done nothing to the the way sqNamedPrims works. For internal > prims, the lookup is identical to all the other platforms. > > > The lookup for internal named prims is done _only_ via the > > table. Since 'exit' is not in the table, it can't be wrongly > > called. Scratch one dumb way to shoot oneself in the foot. No > > worries. > > But the "problem" occurs when looking in an external module, not an > internal one. When dlsym() looks up a symbol it searches in the named > .so and then in the global namespace. There is a flag in one of the > Unix standards definitions somewhere called RTLD_LOCAL that can be > `or'ed with the dlopen() "mode" argument to cause subsequent dlsym()s > to look only in the .so itself, and never in the global namespace. > But I don't know how portable this is. I'm not into all details of this but consider the following: Instead of having one central table that can be used in a portable way to find things, distribute this table so each module has its part of the table. The only thing that should be linked when loading a module is this table. Everything else, that is the real content, is fetched throw this table. I have used such a scheme for a long time and find it very good. It is possible to associate explicit types with each method/function that can make it easy to call things in a coherent way. The Python folks are using a scheme similar to this I believe. In such a module everything is static (= local) except the table. Another twist is to fix numbers for each primitive within the module with an "enum" and then, having a Squeak representation of the same enum, it becomes possible to use array access directly, narrowing the gap between oldtime numbered primitives with the newer named ones. I am going to look into these kinds of things in the near future and will have more to say. /Mats

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RE: Writing an application in squeak?
by Lex Spoon 31 Aug '00

31 Aug '00

"Peter Crowther" <peter(a)crowther.demon.co.uk> wrote: > > Jerome Chan <eviltofu(a)earthlink.net> wrote: > > > How does one go about writing an application for squeak say under > > > windows/macos/unix that is double clickable like a conventional > > > application? > > > From: Bruce ONeel [mailto:beoneel@mindspring.com] > > I don't know enough about windows to say anything beyond it > > should be possible, but I don't know how. > > The easiest way is simply to create an association between the .image suffix > and the Squeak VM. Precisely how this is done in the GUI varies by platform > (as usual with MS), but look under Options or Folder Options in Explorer, > pick the File Types tab, and add .image as a suffix. Works a treat. > Another way is to make a script file, batch file, shortcut, or whatever is relevant for your platform. Then you can specify *which* VM to use, as well as adding command flags and setting up any necessary environment variables. This approach was used heavily in distributing MS-DOS software. -Lex

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[fix] celeste fixes & simplifications
by mdr＠scn.org 31 Aug '00

31 Aug '00

These changes make Celeste more robust and simple, as well as fix a few small bugs. They work well with the current 2.9alpha Enjoy, Mike (1) emptyTrash will no longer remove messages from database if they are also in another category. This avoids surprises when you have filed a message in two categories, delete one, and then empty the trash. (2) Fixes a 2.9alpha bug in Celeste moveAgain where the message was removed from the current category but never added to the proper destination category. (3) Small cleanups Removes two unused methods (Celeste hasUsername: and MailDB delete:) Renames a recently included method (updateToc) that differed only in capitalization from an existing method (4) Clear the password when the POP username is changed

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Re: [Updates] 22 new ones
by Mats Nygren 31 Aug '00

31 Aug '00

Dan Ingalls <Dan.Ingalls(a)disney.com> wrote: > Folks - > > I have just posted 22 new updates, which are summarized here below. > > Enjoy > [snip] undo [snip] Dear SqC, Your interest in undo is very promising. Going to connect it with scripting? You mentioned earlier a unification of browsing/testing/scripting. Time for release soon? /Mats

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