Squeak-dev August 2005

squeak-dev@lists.squeakfoundation.org

157 participants
234 discussions

RE: IconicButton without Border!
by EL Marjani Radouane 29 Aug '05

29 Aug '05

Hi, I want to have a IconicButton with Image and without Border. I have tryed with: Morph BorderWidth:0. But it was not helpfull. Regards. EL Marjani Radouane ___________________________________________________________________________ Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez cette version sur http://fr.messenger.yahoo.com

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Fwd: [Esug-list] PhD in France
by Noury Bouraqadi 29 Aug '05

29 Aug '05

Début du message réexpédié : > De: Bernard Pottier <Bernard.Pottier(a)univ-brest.fr> > Date: 25 août 2005 16:09:07 GMT+02:00 > À: esug-list(a)lists.esug.org > Objet: [Esug-list] PhD in France > > > > Hello, > > Please check http://as.univ-brest.fr/offreCifreThales.pdf if you are > interested > (or know somebody interested) by software for innovative > reconfigurable systems. > > This first offer is not targeted to Smalltalk, but developement tools > for System on Chips > (that could take benefit from good object-oriented modeling and > techniques). > > > Sincerely, > > _______________________ > > Bernard Pottier > LESTER/AS, UBO & CNRS FRE 2734. > > pottier(a)univ-brest.fr > +33 2 98 01 62 15 > > > _______________________________________________ > Esug-list mailing list > Esug-list(a)lists.esug.org > http://lists.esug.org/listinfo/esug-list > -------------------------------------------------------------- Dr. Noury Bouraqadi - Enseignant/Chercheur Ecole des Mines de Douai - Dept. G.I.P http://csl.ensm-douai.fr/noury European Smalltalk Users Group Board http://www.esug.org Squeak: an Open Source Smalltalk http://www.squeak.org --------------------------------------------------------------

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[BIWEEKLY] If restarted...
by Darius 29 Aug '05

29 Aug '05

Goran, If you restart the BIWEEKLY summary of squeak-dev, could you post it to a blog as well like "Haskell Weekly News - The Haskell Sequence" does? http://sequence.complete.org/hwn/ That way Michael's Planet Squeak can harviste it. http://planetsqueak.joyful.com/ Cheers, Darius

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Re: Traits approaching mainstream Squeak
by stéphane ducasse 29 Aug '05

29 Aug '05

> > > >> Yes, at the moment, we're using Traits lazily to avoid >> duplication and inappropriate inheritance. We are not actively >> refactoring other parts of the system at the moment. Doing so >> would probably make the merge into mainstream Squeak more difficult. >> >> >> > > Glad this discussion came up. > Just to be clear, I'm all for having the Traits kernel in 3.9! > > But, at first I would suggest, and I think you want to do this > anyways, that traits are not actually used. Not because they don't > work or anything, but because of design considerations. So my gut > feeling is that we should not use it for major refactoring of the > system core in the near future. > > I understand your point. > OOP has taken many years to come up with something like patterns > and my guess is that, although not quite that long, it will take > some time for best practices to emerge for traits. > > Exact, so we will certainly have trial and errors and feedback. > Please don't get me wrong, I'm not trying to be negative here, > just cautious and wouldn't mind if you prove me wrong ;-) > > Somewhat related: > how do traits affect packages? Should/can they be in separate > packages? > > Normally you can package traits and they can be in separate package and any class. Now if we have a class in PA using a trait in PB then we should get PA dependent on PB but besides that nothing special. > > Michael > > > > >

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OmniBase Problem with Squeak3.8
by Jim Guo 29 Aug '05

29 Aug '05

From: jigme1968(a)tom.com To: squeak-dev(a)lists.squeakfoundation.org Subject: [BUG]ExternalFunction class(Object)>>error: Error occurs when doing either of the following: OmniBase createOn: aDir. OmniBase openOn: aDir. ( created in VAST) 29 August 2005 11:55:36 am VM: Win32 - a SmalltalkImage Image: Squeak3.8 [latest update: #6665] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir F:\bin\Promgram\Seaside\2.5 Trusted Dir F:\bin\Promgram\Seaside\2.5\Mayee Untrusted Dir C:\My Squeak\Mayee ExternalFunction class(Object)>>error: Receiver: ExternalFunction Arguments and temporary variables: aString: 'Callout mechanism not available' Receiver's instance variables: superclass: ExternalObject methodDict: a MethodDictionary(#argTypes->a CompiledMethod (1082) #callingConve...etc... format: 136 instanceVariables: #('flags' 'argTypes') organization: ('initialize-release' initialize) ('accessing' argTypes flags mod...etc... subclasses: #(ExternalLibraryFunction) name: #ExternalFunction classPool: a Dictionary(#FFIErrorMessages->a Dictionary(-1->'Callout mechanism ...etc... sharedPools: an OrderedCollection(FFIConstants) environment: a SystemDictionary(lots of globals) category: nil ExternalFunction class>>externalCallFailed Receiver: ExternalFunction Arguments and temporary variables: errCode: -1 Receiver's instance variables: superclass: ExternalObject methodDict: a MethodDictionary(#argTypes->a CompiledMethod (1082) #callingConve...etc... format: 136 instanceVariables: #('flags' 'argTypes') organization: ('initialize-release' initialize) ('accessing' argTypes flags mod...etc... subclasses: #(ExternalLibraryFunction) name: #ExternalFunction classPool: a Dictionary(#FFIErrorMessages->a Dictionary(-1->'Callout mechanism ...etc... sharedPools: an OrderedCollection(FFIConstants) environment: a SystemDictionary(lots of globals) category: nil ODBWin32FileStream(Object)>>externalCallFailed Receiver: <<error during printing>> Arguments and temporary variables: Receiver's instance variables: position: nil fileHandle: nil mutex: nil pathName: nil externalLong: nil ODBWin32FileStream>>createFile:dwDesiredAccess:dwSharedMode:lpSecurityAttributes:dwCreationDistribution:dwFlagsAndAttributes:hTemplateFile: Receiver: <<error during printing>> Arguments and temporary variables: aStringFileName: 'c:\temp\myODB\omnibase.odt' anIntegerAccessMode: 3221225472 anIntegerShareMode: 3 aSECURITYATTRIBUTES: nil anIntegerCreateMode: 3 anIntegerAttributeFlag: 128 aHandle: nil Receiver's instance variables: position: nil fileHandle: nil mutex: nil pathName: nil externalLong: nil --- The full stack --- ExternalFunction class(Object)>>error: ExternalFunction class>>externalCallFailed ODBWin32FileStream(Object)>>externalCallFailed ODBWin32FileStream>>createFile:dwDesiredAccess:dwSharedMode:lpSecurityAttributes:dwCreationDistribution:dwFlagsAndAttributes:hTemplateFile: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] in ODBWin32FileStream>>createOn:createMode:accessMode:shareMode:cacheMode: {[(fd := self createFile: aPathname dwDesiredAccess: accessMode ...]} SmallInteger(Integer)>>timesRepeat: ODBWin32FileStream>>createOn:createMode:accessMode:shareMode:cacheMode: ODBWin32FileStream class>>createOn:createMode:accessMode:shareMode:cacheMode: ODBFileStream class>>createOn:createMode:accessMode:shareMode:cacheMode: ODBFileStream class>>createOn:createMode:accessMode:shareMode: ODBFileStream class>>openOn: ODBIDTable(ODBFile)>>openOn: ODBIDTable class(ODBFile class)>>openOn: [] in ODBClassManager>>openOn: {[idTable := ODBIDTable openOn: anOmniBase dirName , self idFileName. infoFi...]} BlockContext>>ifCurtailed: ODBClassManager>>openOn: [] in OmniBase>>openOn: {[rootDir := dirName. classManager := ODBClassManager new openOn: self. obj...]} BlockContext>>ifCurtailed: OmniBase>>openOn: OmniBase class>>openOn: UndefinedObject>>DoIt Compiler>>evaluate:in:to:notifying:ifFail:logged: [] in TextMorphEditor(ParagraphEditor)>>evaluateSelection {[rcvr class evaluatorClass new evaluate: self selectionAsStream in: ctxt...]} BlockContext>>on:do: TextMorphEditor(ParagraphEditor)>>evaluateSelection TextMorphEditor(ParagraphEditor)>>doIt [] in TextMorphEditor(ParagraphEditor)>>doIt: {[self doIt]} TextMorphEditor(Controller)>>terminateAndInitializeAround: TextMorphEditor(ParagraphEditor)>>doIt: ...etc... -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

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OmniBase problem with Squeak3.8
by Jim Guo 29 Aug '05

29 Aug '05

From: jigme1968(a)tom.com To: squeak-dev(a)lists.squeakfoundation.org Subject: [BUG]ExternalFunction class(Object)>>error: Error occur when trying to do either line of the following code: OmniBase creatOn: aDirectoryNameString. OmniBase creatOn: aDirectoryNameString. (created in VAST) I'm not able to overcome this. Thanks for any help! 29 August 2005 11:55:36 am VM: Win32 - a SmalltalkImage Image: Squeak3.8 [latest update: #6665] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir F:\bin\Promgram\Seaside\2.5 Trusted Dir F:\bin\Promgram\Seaside\2.5\Mayee Untrusted Dir C:\My Squeak\Mayee ExternalFunction class(Object)>>error: Receiver: ExternalFunction Arguments and temporary variables: aString: 'Callout mechanism not available' Receiver's instance variables: superclass: ExternalObject methodDict: a MethodDictionary(#argTypes->a CompiledMethod (1082) #callingConve...etc... format: 136 instanceVariables: #('flags' 'argTypes') organization: ('initialize-release' initialize) ('accessing' argTypes flags mod...etc... subclasses: #(ExternalLibraryFunction) name: #ExternalFunction classPool: a Dictionary(#FFIErrorMessages->a Dictionary(-1->'Callout mechanism ...etc... sharedPools: an OrderedCollection(FFIConstants) environment: a SystemDictionary(lots of globals) category: nil ExternalFunction class>>externalCallFailed Receiver: ExternalFunction Arguments and temporary variables: errCode: -1 Receiver's instance variables: superclass: ExternalObject methodDict: a MethodDictionary(#argTypes->a CompiledMethod (1082) #callingConve...etc... format: 136 instanceVariables: #('flags' 'argTypes') organization: ('initialize-release' initialize) ('accessing' argTypes flags mod...etc... subclasses: #(ExternalLibraryFunction) name: #ExternalFunction classPool: a Dictionary(#FFIErrorMessages->a Dictionary(-1->'Callout mechanism ...etc... sharedPools: an OrderedCollection(FFIConstants) environment: a SystemDictionary(lots of globals) category: nil ODBWin32FileStream(Object)>>externalCallFailed Receiver: <<error during printing>> Arguments and temporary variables: Receiver's instance variables: position: nil fileHandle: nil mutex: nil pathName: nil externalLong: nil ODBWin32FileStream>>createFile:dwDesiredAccess:dwSharedMode:lpSecurityAttributes:dwCreationDistribution:dwFlagsAndAttributes:hTemplateFile: Receiver: <<error during printing>> Arguments and temporary variables: aStringFileName: 'c:\temp\myODB\omnibase.odt' anIntegerAccessMode: 3221225472 anIntegerShareMode: 3 aSECURITYATTRIBUTES: nil anIntegerCreateMode: 3 anIntegerAttributeFlag: 128 aHandle: nil Receiver's instance variables: position: nil fileHandle: nil mutex: nil pathName: nil externalLong: nil --- The full stack --- ExternalFunction class(Object)>>error: ExternalFunction class>>externalCallFailed ODBWin32FileStream(Object)>>externalCallFailed ODBWin32FileStream>>createFile:dwDesiredAccess:dwSharedMode:lpSecurityAttributes:dwCreationDistribution:dwFlagsAndAttributes:hTemplateFile: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] in ODBWin32FileStream>>createOn:createMode:accessMode:shareMode:cacheMode: {[(fd := self createFile: aPathname dwDesiredAccess: accessMode ...]} SmallInteger(Integer)>>timesRepeat: ODBWin32FileStream>>createOn:createMode:accessMode:shareMode:cacheMode: ODBWin32FileStream class>>createOn:createMode:accessMode:shareMode:cacheMode: ODBFileStream class>>createOn:createMode:accessMode:shareMode:cacheMode: ODBFileStream class>>createOn:createMode:accessMode:shareMode: ODBFileStream class>>openOn: ODBIDTable(ODBFile)>>openOn: ODBIDTable class(ODBFile class)>>openOn: [] in ODBClassManager>>openOn: {[idTable := ODBIDTable openOn: anOmniBase dirName , self idFileName. infoFi...]} BlockContext>>ifCurtailed: ODBClassManager>>openOn: [] in OmniBase>>openOn: {[rootDir := dirName. classManager := ODBClassManager new openOn: self. obj...]} BlockContext>>ifCurtailed: OmniBase>>openOn: OmniBase class>>openOn: UndefinedObject>>DoIt Compiler>>evaluate:in:to:notifying:ifFail:logged: [] in TextMorphEditor(ParagraphEditor)>>evaluateSelection {[rcvr class evaluatorClass new evaluate: self selectionAsStream in: ctxt...]} BlockContext>>on:do: TextMorphEditor(ParagraphEditor)>>evaluateSelection TextMorphEditor(ParagraphEditor)>>doIt [] in TextMorphEditor(ParagraphEditor)>>doIt: {[self doIt]} TextMorphEditor(Controller)>>terminateAndInitializeAround: TextMorphEditor(ParagraphEditor)>>doIt: ...etc... -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

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Squeak Chat Thursday September 1st 21:00 GMT
by Ken Causey 29 Aug '05

29 Aug '05

Just a reminder that the next Squeak Chat will take place between 21:00 (9 PM) GMT Thursday September 1st and 01:00 (1 AM) GMT Friday September 2nd, 2005. 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 This is a good time to contribute to the development of Squeak by participating in the Harvesting Process. One of the main ways to contribute is by Reviewing submitted fixes and enhancements. For information about the Harvesting Process see http://minnow.cc.gatech.edu/squeak/3152 If you have the time please attend and work toward the future of Squeak. The next seven chats are scheduled for 01:00 (01:00 AM) GMT Tuesday September 06, 2005 05:00 (05:00 AM) GMT Saturday September 10, 2005 09:00 (09:00 AM) GMT Wednesday September 14, 2005 13:00 (01:00 PM) GMT Sunday September 18, 2005 17:00 (05:00 PM) GMT Thursday September 22, 2005 21:00 (09:00 PM) GMT Monday September 26, 2005 01:00 (01:00 AM) GMT Saturday October 01, 2005

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[ANN] New Version of Audio and Video library available
by Martin Kuball 28 Aug '05

28 Aug '05

Hi! It's been a while since the last release. But I didn't have as much time recently as I would like to. So progress is very small. But progress there is. The new release is available from SqueakSource at kilana.unibe.ch. It has a lot of bug fixes and some improvements. The latter beeing mainly mp3 related. The lib is now able to read the side info in an mp3 frame. This can be used to split streams that use the bitreservoir. There is no example code, yet. But I used this feature in a filter to remove frames at the beginning of a stream. Check it out. I hope to do be able to do a little bit more in the next weeks. Among other I plan to add more unit tests, example code and classes to edit id tags in mp3 files. After that I want to add another container format (maybe matroska) and more stream formats (mpeg 1+2 video and aac audio). Martin

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About community exposure
by stéphane ducasse 28 Aug '05

28 Aug '05

Hi all Last week I got an excellent chat with James Robertson from VisualWorks. He started a sentence that way: "if you want to increase the visibility of Squeak..." Then I was thinking ok UI, Widgets, packages..... and not at all he told me that we need bloggers. I should say that I was quite surprised....and he explained to me and I'm convinced now. So if one or two of you would like to - have your own blog - push the mailing announce into a blog -... Please think about it. Stef

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Re: Traits approaching mainstream Squeak
by Daniel Vainsencher 28 Aug '05

28 Aug '05

Jecel Assumpcao Jr wrote: > For Neo Smalltalk I took this suggestion seriously and eliminated > inheritance. An object is just a list of "facets" (they don't have the > fancy dependency stuff that traits do so it is better to have a > different name). Since this isn't running I don't have any actual > experience with this style or programming yet. But based on a few years > with Self I plan to keep these facets as few and as large as possible. > In fact, the idea is to have a single facet for an object until I need > to share a part of it but not the rest and then I plan to refactor on > demand, splitting the facet as needed. So the result would be an > implementation driven factoring and not on a purely logical design. That sounds like a pretty reasonable route too. In one tiny bit of experience I've had designing a small trait, which was just a bit of functionality (4 methods or so) that I needed to share between two classes, I found myself creating something so tiny and specific that while readily understood, it wasn't readily summarized, because there wasn't much meat to hide. But I'm not sure. It might turn out that once we learn to name these meaningfully, they'll be useful. For example, it might make sense to simply remove method categories completely, and replace them with Traits. Never really liked method categories. Because they have zero semantics there is even less basis for designing them than there is for Traits (at least one can minimize boundaries). One benefit is that it would simplify the browser more or less to where it used to be. BTW, is it very confusing to have the class inheritance hierarchy and the trait hierarchy going in the opposite directions? Daniel

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