October 2009 - Pharo-dev - lists.pharo.org

[Pharo-project] [update] #10466

by Marcus Denker

10466 ----- Issue 1250: Unload Gofer -- Marcus Denker - http://marcusdenker.de PLEIAD Lab - Computer Science Department (DCC) - University of Chile

Oct. 2, 2009

Re: [Pharo-project] What Collection is suitable for binary stream

by Schwab,Wilhelm K

Andrey, You mention both character and binary data. One of the many wonderful things about Smalltalk is that it can handle situations like yours. First, let's suppose (no insult implied, all of us were newbies once) that you are simply confused about what you need. You will find Smalltalk very forgiving when you make changes toward a correct implementation. Drop in the correct collection class, and things will start to work, or at least be closer to working than what you have now. Second, you might truly need a mix of characters, numbers, and maybe other objects. In that case, try Array. More on that below. If all of your data is text, then String or ByteString will do; it appears that one can specify String and ByteString will "magically" appear as needed. I have not had problems with it, so I've never bothered to delve further into the coercion process. Likewise, if everything is binary, ByteArray is a good choice. There are other "dense" collection classes (see ArrayedCollection and subclasses), such as FloatArray. Notice all of the methods starting in #bytes (#byteSize, #bytesPerBasicElement, etc.). These classes "think" in binary and have two reasons for existing. First, a sequence of a million floats is much better stored in a FloatArray than an ordinary collection, because the garbage collector sees that as one object, plus any that you spin off in working with the collection; in contrast, an Array or OrderedCollection of one million floats puts a nice load on the gc. Further, FloatArray can be passed[*] as a C-style array into external functions expecting a float * argument; an Array is not C-friendly. However, an Array (or OrderedCollection, Dictionary, etc. - the "ordinary" collections) can store any mix of objects you care to throw at them. For example, try OrderedCollection with:2 with:Float pi with:'Try this in C!'. Put the above in a workspace and inspect or explore it. Also try FloatArray with:3.0 with:2. Did anything interesting happen? Why did it happen? It might help to try FloatArray with:3.0 with:'This will cause an error'. Go ahead; the debugger is your friend. Does that help? Bill [*] actually, I _think_ a FloatArray can be passed into a float * argument. They certainly can in other dialects. I am still learning my way around Pharo. Maybe an external interfacing guru can enlighten us both. -----Original Message----- From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Andrey Larionov Sent: Friday, October 02, 2009 6:51 AM To: Pharo Development Subject: [Pharo-project] What Collection is suitable for binary stream I'm a novice for Smalltalk. Can any body suggest proper collection for binary stream. I try ByteArray - it dosn't allow Characters, try ByteString - it not allow non literals. Which collection (or maybe pattern) should be used to write binary and character data? _______________________________________________ Pharo-project mailing list Pharo-project(a)lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Oct. 2, 2009

Re: [Pharo-project] Examples for UITheme

by Cyrille Delaunay

It's done :) 2009/10/2 Marcus Denker <denker(a)acm.org> > > On 02.10.2009, at 10:32, Cyrille Delaunay wrote: > > > Hi, > > > > I have added comments to the UITheme classe description and into the > > examples methods, to evaluate directly the examples. > > I have saved that in 'PharoInBox' in squeaksource. > > Can you add an entry in the issue tracker for that? > > Marcus > > > > > -- > Marcus Denker - http://marcusdenker.de > PLEIAD Lab - Computer Science Department (DCC) - University of Chile > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

Oct. 2, 2009

Re: [Pharo-project] Examples for UITheme

by Marcus Denker

On 02.10.2009, at 10:32, Cyrille Delaunay wrote: > Hi, > > I have added comments to the UITheme classe description and into the > examples methods, to evaluate directly the examples. > I have saved that in 'PharoInBox' in squeaksource. Can you add an entry in the issue tracker for that? Marcus -- Marcus Denker - http://marcusdenker.de PLEIAD Lab - Computer Science Department (DCC) - University of Chile

Oct. 2, 2009

[Pharo-project] [update] #10465

by Marcus Denker

10465 ----- Issue 1203: ThreadSafeTranscript(Object)>>doesNotUnderstand: #print: Issue 773: Comment and category in Utilities class>>addUpdateServer: Issue 1259: ProcessorScheduler>>selfEvaluating -- Marcus Denker - http://marcusdenker.de PLEIAD Lab - Computer Science Department (DCC) - University of Chile

Oct. 2, 2009

[Pharo-project] Examples for UITheme

by Cyrille Delaunay

Hi, I have added comments to the UITheme classe description and into the examples methods, to evaluate directly the examples. I have saved that in 'PharoInBox' in squeaksource.

Oct. 2, 2009

Re: [Pharo-project] StrikeFont Accujen in Pharo

by Jochen

StÃ©phane Ducasse schrieb: >>>>>> >> Thank you Henry! With your hint i've finally found a solution! >> >> In Squeak I could file out the font with: >> (StrikeFont familyName: 'Accujen' size: 9) writeAsStrike2named: >> 'Accujen9.sf2' >> >> In Pharo then I could file it in with: >> TextConstants at: 'Accujen' put: (TextStyle fontArray: (Array with: >> (StrikeFont new readFromStrike2: 'Accujen9.sf2'))). >> Preferences restoreDefaultFonts. >> StrikeFont limitTo16Bits. >> StrikeFont useUnderscoreIfOver1bpp >> >> Now I can use the Accujen like any other font in Pharo. :) >> > > could you package that and put it somewhere? > so that we can reuse it somebody needs it? > A AccujenPharo Package would be great! > > Stef I'm quite new to packages/monticello etc. - probably it should be two packages: one for Squeak (to file out) and one for Pharo (to file in). Or is it possible to include files (the fonts) into packages? I'm quite busy at the moment but will think about it the next days! Jochen

Oct. 2, 2009

Re: [Pharo-project] PositionableStream and uintXXX

by Andrey Larionov

Thanks. I found what i need send a binary to stream before processing. On Fri, Oct 2, 2009 at 16:02, Henrik Johansen <henrik.s.johansen(a)veloxit.no> wrote: > tream defines binary as well, default implementation does nothing, > look at it's subclasses implementors to see which support it.

Oct. 2, 2009

Re: [Pharo-project] PositionableStream and uintXXX

by Henrik Johansen

(SocketStream on: socket) binary. Stream defines binary as well, default implementation does nothing, look at it's subclasses implementors to see which support it. Cheers, Henry On Oct 2, 2009, at 5:16 15AM, Andrey Larionov wrote: > I'm try to launch FastCGI for Seaside. And there is a question. > From socket stream reads some byte sequence which wraped by ReadStream > on which reading operations is continued. In some place called unit24 > message, which sends bitShift: message. But from stream returned not > an Integer but Character, which dosnt have an bitShift: method. What > i'm missed? is there should be special calls to made stream binary? > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

Oct. 2, 2009

[Pharo-project] What Collection is suitable for binary stream

by Andrey Larionov

I'm a novice for Smalltalk. Can any body suggest proper collection for binary stream. I try ByteArray - it dosn't allow Characters, try ByteString - it not allow non literals. Which collection (or maybe pattern) should be used to write binary and character data?

Oct. 2, 2009