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

Re: [Pharo-project] method pane got crossed

by Henrik Johansen

On Aug 31, 2009, at 6:20 44PM, Carlos Crosetti wrote: > While updating software, I experienced a disconect in my DSL, then a > exception raised (please read on) and as you may sse in the attached > screenshot, the text pane where the method source code is shown, got > crossed > with a red background. I saw this effect happening but have not > recorded the > scenario. What is the code behind that makes the pane to get > "crossed", what > are the circumstances ? > > Regards, Carlos The red crossing happens when an error occurs in the morph rendering code, usually instead of frying your image. When the error occured in the method pane, I'd say it's usually a good idea to just ditch the image anyways though, because if the model it relies on to properly draw the method is corrupted, there's probably more lurking in the shadows. Needless to say, error-recovery code of Monticello when a network disappears during an update probably could use some work :) Or look into atomic loading, alternatively wait for MC2 to someday be usable and hope it fixes things. Cheers, Henry

Aug. 31, 2009

Re: [Pharo-project] Don't ask me how to reproduce this one :)

by Andrew Tween

Hi Bill, I can reproduce this by repeatedly saving without quitting (on windows vista). I suspect that some face handles are no being closed properly at shutdown. When a face handle is open, then the FreeType library also has the associated file open. But there is a limit to the number of open file handles - see http://code.google.com/p/pharo/issues/detail?id=1061 for more info on this. When I have figured out what is going wrong in the shutdown, I'll post a fix. Is there a bug issue number for this problem? If not, I'll create one. Cheers, Andy . > From: bschwab(a)anest.ufl.edu > To: Pharo-project(a)lists.gforge.inria.fr > Date: Mon, 31 Aug 2009 14:42:13 -0400 > Subject: [Pharo-project] Don't ask me how to reproduce this one :) > > Hello all, > > I periodically see a degradation of anti-aliased fonts, and have no idea what causes it. Given my recent adventures in to startup/shutdown, I suppose it could be due to a problem there?? It seems to be triggered by saving the image w/o quitting. This recent occurance was different in that I started noting that the text in browsers looked different to me, perhaps just that the method name was not bold?? Something was not quite right, but the text still looked to be rendered well. Shortly thereafter, the full breakdown happened with everything rendered in an ugly font. It seems safe to save the image in this state, and exiting and re-loading the image fixes is. Any ideas? > > Bill > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _________________________________________________________________ Use Hotmail to send and receive mail from your different email accounts. http://clk.atdmt.com/UKM/go/167688463/direct/01/

Aug. 31, 2009

Re: [Pharo-project] Don't ask me how to reproduce this one :)

by csrabak＠bol.com.br

Em 31/08/2009 15:42, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu> escreveu: > Hello all, > > I periodically see a degradation of anti-aliased fonts, and have > no idea what causes it. Given my recent adventures in to > startup/shutdown, I suppose it could be due to a problem there?? It > seems to be triggered by saving the image w/o quitting. This recent > occurance was different in that I started noting that the text in > browsers looked different to me, perhaps just that the method name > was not bold?? Something was not quite right, but the text still > looked to be rendered well. Shortly thereafter, the full breakdown > happened with everything rendered in an ugly font. It seems safe to > save the image in this state, and exiting and re-loading the image > fixes is. Any ideas? > Bill, I noticed that in the #10419 episode. HTH

Aug. 31, 2009

Re: [Pharo-project] Complex Solutions

by csrabak＠bol.com.br

Em 30/08/2009 18:37, Schwab,Wilhelm K < bschwab(a)anest.ufl.edu escreveu: > > > ==================== Let me see if I understand your point then: it > is OK in your view that we can do: > 1i squared. retuning "-1 + 0i" so a Complex, but > (1i squared) sqrt. raises an error? ==================== > You apparently do NOT understand. 1i squared would answer a > Complex, so it would respond favorably to #sqrt. Bill on the *present* state of affairs, Ken's description of the problem stands as *I* wrote, not as your analysis. Please observe carefully that once 1i is squared it "becomes back" a non complex number '-1'. THIS is the asymmetry I'm writing about. > > ================== Or should we follow your logic and even when the > imaginary part of a Complex is zero it should not be automatically > converted in a real number? ================== > Yes. It's not "even when" - just don't do conversions when (you > think) floating points numbers match. OK, then we agree that any operation on a Complex should not coalesce it to non complex anymore. > > ============ 1i whatever he already made her/his choice to use > Complex numbers, right? ============ > Right. So don't try to turn it back into a Float and all will be > well. > Yes. I see consistency with, although I still think the other way is better :-)

Aug. 31, 2009

[Pharo-project] ODBC: table names and column names/types?

by Schwab,Wilhelm K

Hello all, Is there anything available for Pharo that gives schema information about a database? Bill

Aug. 31, 2009

Re: [Pharo-project] Don't ask me how to reproduce this one :)

by Douglas Brebner

Schwab,Wilhelm K wrote: > Hello all, > > I periodically see a degradation of anti-aliased fonts, and have no idea what causes it. Given my recent adventures in to startup/shutdown, I suppose it could be due to a problem there?? It seems to be triggered by saving the image w/o quitting. This recent occurance was different in that I started noting that the text in browsers looked different to me, perhaps just that the method name was not bold?? Something was not quite right, but the text still looked to be rendered well. Shortly thereafter, the full breakdown happened with everything rendered in an ugly font. It seems safe to save the image in this state, and exiting and re-loading the image fixes is. Any ideas? > I had the truetype fonts disappear but doing FreeTypeFontProvider current updateFromSystem. fixed it. I don't know if that's the correct way to do it though

Aug. 31, 2009

[Pharo-project] Don't ask me how to reproduce this one :)

by Schwab,Wilhelm K

Hello all, I periodically see a degradation of anti-aliased fonts, and have no idea what causes it. Given my recent adventures in to startup/shutdown, I suppose it could be due to a problem there?? It seems to be triggered by saving the image w/o quitting. This recent occurance was different in that I started noting that the text in browsers looked different to me, perhaps just that the method name was not bold?? Something was not quite right, but the text still looked to be rendered well. Shortly thereafter, the full breakdown happened with everything rendered in an ugly font. It seems safe to save the image in this state, and exiting and re-loading the image fixes is. Any ideas? Bill

Aug. 31, 2009

[Pharo-project] [ANN] new Core #10428

by Marcus Denker

A pre-built core #10428 is available: http://gforge.inria.fr/frs/download.php/22978/PharoCore-1.0-10428-BETA.zip -- Marcus Denker - http://marcusdenker.de PLEIAD Lab - Computer Science Department (DCC) - University of Chile

Aug. 31, 2009

Re: [Pharo-project] Package naming Scheme

by Adrian Lienhard

Hi Torsten Yes, this has been discussed previously on this list. There were two main points of view: - keeping all tests together in the same package as the classes they test - packaging the tests in the package 'Tests' organized in subcategories Tests-A, Tests-B, etc. The rationale for the latter is to be able to cleanly unload the tests when you don't need them (e.g., when you create an image for deployment). Recently, I reorganized tests following the principle that all tests can be unloaded without making existing packages dirty. Therefore, the second case you describe below, 'MyPackage-Tests', does not exist anymore (with the exception of 'SUnit-Tests', which is ok) [1]. What I did is something in between the two solutions. In a further step we can merge packages like 'GraphicsTests' into 'Tests' (i.e., 'Tests- Grapchics') where appropriate. Adrian [1] (TestCase allSubclasses collect: #category) asSet asSortedCollection explore On Aug 30, 2009, at 22:27 , Torsten Bergmann wrote: > Currently pharo packages are named differently: > > - either "MyPackage" and "Tests-MyPackage" for the tests > - or "MyPackage" and "MyPackage-Tests" for the tests > - or something completely different like "GraphicsTests-Text" > > First one is used more often but not very good when > using the "alphabetize" functionality in the context > menu of the standard browser ;) > > Since the package naming scheme also affects > - the monticello repo layouts > - removal/shrink scripts (see ScriptLoader>>cleanupForProduction) > - and method category names for extensions > > we should agree on at least one to use. > > Were the pros and cons of the different naming > schemes already discussed? If so is there any docu around? > I remember Lukas suggested to use the one from Seaside... > > Thx > Torsten > -- > Neu: GMX Doppel-FLAT mit Internet-Flatrate + Telefon-Flatrate > fÃ¼r nur 19,99 Euro/mtl.!* http://portal.gmx.net/de/go/dsl02 > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Aug. 31, 2009

Re: [Pharo-project] Pharo beta one-click somewhere?

by Janko Mivsek

Hi guys, How far are you with Pharo one-click? Thanks in have a nice time Janko On Wed, 26 Aug 2009 13:08:02 +0200 Janko MivÅ¡ek <janko.mivsek(a)eranova.si> wrote: >Damien Cassou pravi: >> Janko MivÅ¡ek: >>> Is there any Pharo one-click around to adopt? Hopefully >>>based on latest >>> beta... > >> not yet sorry. Marcus, could you please build one? > >.. it would namely be nice to have a Pharo based >one-click distro for >my tutorial on ESUG ... :) > >Janko > >-- >Janko MivÅ¡ek >AIDA/Web >Smalltalk Web Application Server >http://www.aidaweb.si > >_______________________________________________ >Pharo-project mailing list >Pharo-project(a)lists.gforge.inria.fr >http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Aug. 31, 2009