Squeak-dev December 2004

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194 participants
491 discussions

[ANN] Connectors 2 for 3.8g/3.9a released on SqueakMap
by Ned Konz 29 Dec '04

29 Dec '04

Hello all, Sorry it's taken me so long, but there is a current version of Connectors 2 registered on SqueakMap. It should be compatible with versions of 3.8g or 3.9a at least at update 6460. Please tell me about any problems you find with it. It may also be downloaded from: http://map1.squeakfoundation.org/sm/accountbyid/092daeeb-7a37-427f-8afb-66b… http://bike-nomad.com/squeak/ConnectorsFor38-185.sar Thanks, -- Ned Konz http://bike-nomad.com/squeak/

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RE: SM has passed 500 packages!
by DClarke＠fadal.com 29 Dec '04

29 Dec '04

Great milestone!! Can we think some more about how we create the category hierarchy now? I think we need some more granularity esp. for the newbie. Applications = 47 Development tools = 143 Maybe by: * target audience * multimedia * UI * keyboard enhancements * code structure * meta-code structures * code browsers * widgets * math functions * date/time functions * version compatibility specific updates * "trends for the future with great promise" * interfaces to other applications/libraries * interfaces to data structures * other languages * testing * very experimental * best for programmer's workbench * file formats * exemplary coding style * internet consuming (client) applications * packaging routines * hobby/engineering specific * etc. Perhaps a wiki page everyone can sort & test. Perhaps a "package last modified date" to measure how it's aging. Cheers, Darius -----Original Message----- From: squeak-dev-bounces(a)lists.squeakfoundation.org [mailto:squeak-dev-bounces@lists.squeakfoundation.org] On Behalf Of goran.krampe(a)bluefish.se Sent: Tuesday, December 28, 2004 4:15 AM To: squeak-dev(a)lists.squeakfoundation.org Subject: SM has passed 500 packages! Hi people! Well, I just noticed SM is up to 506 packages and 241 accounts. Wow! And the funny silly bug that makes: http://map1.squeakfoundation.org/sm/recentnew ...barf has temporarily disappeared. :) cheers, Göran

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REMINDER: Harvesting Party Thursday December 30th 00:00 GMT
by Ken Causey 29 Dec '04

29 Dec '04

Just a reminder that the next Harvesting Party will take place between 00:00 (Midnight) and 04:00 (4 AM) GMT Thursday December 30th, 2004. As usual we will meet in #squeak on irc.freenode.net. More information about the #squeak IRC channel can be found at http://people.squeakfoundation.org/article/7.html Information about the Harvesting Party idea can be found at http://people.squeakfoundation.org/article/29.html If you have the time please attend and work toward the future of Squeak. The next seven parties are scheduled for 04:00 (04:00 AM) GMT Monday January 03, 2005 08:00 (08:00 AM) GMT Friday January 07, 2005 12:00 (12:00 PM) GMT Tuesday January 11, 2005 16:00 (04:00 PM) GMT Saturday January 15, 2005 20:00 (08:00 PM) GMT Wednesday January 19, 2005 00:00 (12:00 AM) GMT Monday January 24, 2005 04:00 (04:00 AM) GMT Friday January 28, 2005

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[MC] post-loading action and other?
by stéphane ducasse 29 Dec '04

29 Dec '04

Hi all Question 1: -------------- is there a post loading action in MC at the package level? Question 2: -------------- I have pica (empty) working as a map -> pica-Bot -> pica-Env Is there a way to save all the packages dependent of one package (here pica)? Question 3: -------------- When I have dependent packages such as pica.2 (empty) working as a map -> pica-Bot.2 -> pica-Env.4 When pica-env gets pica-Env.5 Why pica does not get a star indicating that its dependent package changes, since it is a package state changes. Stef

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[ANN] BabySRE (Squeak Reverse Engineering) posted on SqueakMap
by Trygve Reenskaug 29 Dec '04

29 Dec '04

SRE (Squeak Reverse Engineering) is new set of three tools making Squeak objects visible and tangible: 1) *SRE collaboration* for building a diagram a system of objects with the links between them. 2) *SRE Object Browser* to get a full description of a single object with its identity, state, and behavior. The class hierarchy is flattened so that you see the object as a whole. 3) *Object>>traceRM:* a method that dumps the stack in the Transcript. Taken together, these three tools are meant to get their user in closer contact with the real objects. The tools shall give better understanding of existing systems and better contol over new ones. I have written a technical note using these tools to answer the question "What is a Morph?". It is posted at http://heim.ifi.uio.no/~trygver/2004/babysre/BabySRE.pdf But seeing it on paper is one thing, working with the live objects is another. I encourage you to install BabySRE from SqueakMap: 1) Start from Squeak3.7-5989-basic. (Any other release might do, I haven't tried it) 2) Install Connectors version 1.9. (2.0 didn't work for me). I got an error while loading. It does not seem to matter. 3) Load and open Monticello. 4) Open SqueakMap Package Loader. Select and install BabySRE-TRee11. I am particularly concerned to learn if the SRE approach is at odds with the visions of the SCG people in Berne. I hope not. I see from this mailing list that there are many contributors who teach Squeak programming. It would be very interesting if some of you could test how students take to the SRE way of describing object systems. BabySRE is part of the BabyUML project. I hope to use a complete rewrite of the SRE tools as parts of a higher level programming language IDE. I hope you will try the SRE tools, but don't expect me to maintain them in their present form. All feedback will be welcome. I must admit: positive feedback will be more than welcome. Have fun --Trygve -- Trygve Reenskaug mailto: trygver <at> ifi.uio.no Morgedalsvn. 5A http://heim.ifi.uio.no/~trygver N-0378 Oslo Tel: (+47) 22 49 57 27 Norway

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System profiling tool needed
by Michael Latta 29 Dec '04

29 Dec '04

I am trying to track down why I am getting poor UI performance when dragging a connected morph around. The use of spyOn and TimeProfileBrowser both time the execution of a block. I could use these with code that executes only once at some point in the process, but that almost requires that I know where the issue is before I start. In Java environments the profilers support timing all activity in a session. Is there something in Squeak that allows this type of system wide monitoring? Michael

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[BUG] Yet another depreciation warning, -- but I can't fix this one. =\
by alangrimes＠starpower.net 28 Dec '04

28 Dec '04

I was bumming around my immage trying to decide what to break next when I was in the Balloon3D demo world. I had been using it before, I had managed to add several actors to the world and since hardware accel started working, it works very smoothly too. =P Then I got the nation of scrolling through the list of actors vertically... -- I got this error... It's possible this has already been fixed but I'm using a stale instance, I really don't know. =\ I am beginning to have serious misgivings about 3.8... 3.7 is turning out to be the most broken Squeak I've ever touched. Some of my favorite -- almost essential -- packages on Squeakmap such as the variables pane for the browser don't work very well at all on this version. =\ -- Expect me to flood the list with bug reports over the next several days... =( 27 December 2004 9:23:25 pm VM: unix - a SmalltalkImage Image: Squeak3.7 [latest update: #5989] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /home/atg Trusted Dir /home/atg/secure Untrusted Dir /home/atg/untrusted Deprecation(Warning)>>defaultAction Receiver: Deprecation: PluggableListMorph(ScrollPane)>>scrollBarValue: has been deprecated. Please u...etc... Arguments and temporary variables: Receiver's instance variables: messageText: 'PluggableListMorph(ScrollPane)>>scrollBarValue: has been deprecat...etc... tag: nil signalContext: Deprecation(Exception)>>signal handlerContext: nil outerContext: nil UndefinedObject>>handleSignal: Receiver: nil Arguments and temporary variables: exception: Deprecation: PluggableListMorph(ScrollPane)>>scrollBarValue: has bee...etc... Receiver's instance variables: nil MethodContext(ContextPart)>>handleSignal: Receiver: BlockContext>>on:do: Arguments and temporary variables: exception: Deprecation: PluggableListMorph(ScrollPane)>>scrollBarValue: has bee...etc... val: nil Receiver's instance variables: sender: PasteUpMorph>>becomeActiveDuring: pc: 9 stackp: 3 method: a CompiledMethod (1017) receiverMap: nil receiver: [] in PasteUpMorph>>becomeActiveDuring: {[aBlock value]} Deprecation(Exception)>>signal Receiver: Deprecation: PluggableListMorph(ScrollPane)>>scrollBarValue: has been deprecated. Please u...etc... Arguments and temporary variables: Receiver's instance variables: messageText: 'PluggableListMorph(ScrollPane)>>scrollBarValue: has been deprecat...etc... tag: nil signalContext: Deprecation(Exception)>>signal handlerContext: nil outerContext: nil --- The full stack --- Deprecation(Warning)>>defaultAction UndefinedObject>>handleSignal: MethodContext(ContextPart)>>handleSignal: Deprecation(Exception)>>signal - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Deprecation(Exception)>>signal: Deprecation class(Exception class)>>signal: PluggableListMorph(Object)>>deprecated: PluggableListMorph(ScrollPane)>>scrollBarValue: [] in ScrollBar(Slider)>>setValue: {[:sel | setValueSelector := sel. model perform: sel with: value]} ScrollBar(MorphicModel)>>use:orMakeModelSelectorFor:in: ScrollBar(Slider)>>setValue: ScrollBar>>setValue: ScrollBar(Slider)>>scrollAbsolute: EventHandler>>send:to:withEvent:fromMorph: EventHandler>>mouseMove:fromMorph: RectangleMorph(Morph)>>mouseMove: RectangleMorph(Morph)>>handleMouseMove: MouseMoveEvent>>sentTo: RectangleMorph(Morph)>>handleEvent: RectangleMorph(Morph)>>handleFocusEvent: [] in HandMorph>>sendFocusEvent:to:clear: {[ActiveHand := self. ActiveEvent := anEvent. result := focusHolder han...]} [] in PasteUpMorph>>becomeActiveDuring: {[aBlock value]} BlockContext>>on:do: PasteUpMorph>>becomeActiveDuring: HandMorph>>sendFocusEvent:to:clear: HandMorph>>sendEvent:focus:clear: HandMorph>>sendMouseEvent: HandMorph>>handleEvent: HandMorph>>processEvents [] in WorldState>>doOneCycleNowFor: {[:h | ActiveHand := h. h processEvents. capturingGesture := capturingGest...]} Array(SequenceableCollection)>>do: WorldState>>handsDo: WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: PasteUpMorph>>doOneCycle [] in Project class>>spawnNewProcess {[[World doOneCycle. Processor yield. false] whileFalse. nil]} [] in BlockContext>>newProcess {[self value. Processor terminateActive]}

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Re: [ANN] BabySRE (Squeak Reverse Engineering) posted on SqueakMap
by hjh-sqlist＠lexdb.net 28 Dec '04

28 Dec '04

Trygve, Trygve Reenskaug wrote: > Hannes, > I tried Squeak3.8a-5987.image and the collaboration worked. > > I then tried Squeak3.8g-6527 and the loading of connectors failed due to > an array out of bounds bug in StrikeFontSet>>maxWidth. > > Try to compile this change before you load Connectors 1.9. > StrikeFontSet>>maxWidth > ^ (fontArray at: (2 min: fontArray size)) maxWidth. > Load Connectors 1.9 > Load BabySRE-TRee11 > Yes this worked! The collaboration diagram tool is very useful. It emphasizes the fact that everything is an object in Smalltalk. It allows mind-map like browsing/navigating and documentation of designs. On can think of having graphical browsers now. I did an example today and put the diagram here http://minnow.cc.gatech.edu/squeak/1934 It is very easy and straightforward to use. Not more than 10 minutes to learn using it. It extends the IDE in an important way. The downside so far: The installation process is not smooth. I have installed in a 3.8g-6527 image - Monticello223 - RefactoringBrowser3.8.10 (or was it 11?) (RFB) - Fix for RFB - maxWidth-Fix in StrikeFontSet (see other thread) - Connectors 1.9 - and finally SRE Remarks: a) SRE works fine. But when I develop the decompiler does not work correctly anymore. The parameters and local variables are replaced by t1,t2,t3.... I do not know where this comes from. b) RefactoringBrowser Today Marcus Denker put out 3.8.12 where you no longer need to install the fix (mentioned in another thread today). c) Redoing an 3.8base image with additional packages I then tried to redo the same thing from scratch again this evening but this time SRE didn't load anymore. d) Current work method So for the time beeing I will use the image with SRE that works by loading my code from the Monticello repository do draw the diagrams wheras I will develop it in another image. Not ideal but a big step forward in any case. e) base image plus MC, RFB, Conn1.9, SRE If somebody other is successful assembling a 3.8gamma image with Monticello, RFB, Connectors and SRE without the aforementioned limit I will happily provide webspace that other poeple can get started right away. This will be for a few months as I think later we will have better solutions (New version of SqueakMap). Thank you , Trygve, for this path-leading contribution! Hannes

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[TRICK] What if you have Squeak 3.7 CD and not Internet access and wish load SqueakMap packages
by Lic. Edgar J. De Cleene 28 Dec '04

28 Dec '04

Here some for dialup users. Unzip sm.zip from Squeak 3.7 CD to sm directory in your Squeak directory. How force SqueakMap to use disk directory when you don't have Internet access. 1) Select wished item 2) If item don't show browse cache do command click (or alt / click) for bring halo. 3) Select inspect in debug button. 4) locate defaultTarget and inspect it 5) In lower pane type self browseCacheDirectory. 6) If your are lucky a FileList pop up and you could navigate and select wished package. Could be possible have sm.zip actualized one time by month ? And some like map.1593.sgz actualized for this for download somewhere ? Better one "load from disk " option in menu ? Thanks in advance. Edgar

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Deprecation
by Doug Way 28 Dec '04

28 Dec '04

Since the subject of deprecating code comes up here fairly often, I just created a "Deprecation" page on the swiki, which hopefully summarizes how deprecating methods and classes is (or should be) handled in Squeak: http://minnow.cc.gatech.edu/squeak/3940 Which reminds me, there are some methods lying around in the image which have been deprecated for at least 2 releases, and should probably be removed now in 3.9alpha. - Doug

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