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

[Pharo-project] Why I use Pharo
by John Escobedo July 31, 2009

July 31, 2009

I'm super excited to hear about Pharo 1.0 beta. I thought I'd post about why I'm using Pharo. I started using Pharo about 2 weeks ago and have finally started writing small programs in Smalltalk again. Just over 2 years ago, I was learning Squeak but got frustrated at finding most links dead or things that didn't seem to be maintained. I was very excited with the changes in 3.8 and 3.9 but was left wondering what happened after that. Looking back, it looks like Pharo happened. Thanks so much to everyone.

4 3

[Pharo-project] Fwd: [Bug and Fix] actualclass in presence of classtrait
by StÃ©phane Ducasse July 31, 2009

July 31, 2009

> since I do not have internet I did not added the bugtracker but > when we define a method in the class side of a trait we get an error: > > because a methodReference can be used on a method attached to a class > so actualClass does not take into account traits > > MethodReference>>actualClass > > | actualClass | > actualClass := Smalltalk at: classSymbol ifAbsent: [^nil]. > classIsMeta ifTrue: [^actualClass classSide]. > ^actualClass > > this breaks for example OBMethodCategoryFilter > > OBMethodCategoryFilter>>displayString: aStringOrText forParent: > pNode child: cNode > | category | > ((cNode reference actualClass includesSelector: cNode reference > methodSymbol) > and: [cNode reference compiledMethod literals includes: > #deprecated:]) > ifTrue: [^aStringOrText asText addAttribute: TextEmphasis > struckOut]. > > category := cNode category. > (category beginsWith: '*') ifTrue: [ > ^(category includesSubString: '-overrides') > ifTrue: [aStringOrText asText addAttribute: TextEmphasis > italic; addAttribute: TextColor red] > ifFalse: [aStringOrText asText addAttribute: TextEmphasis > italic]]. > > ^aStringOrText > > > Here is a possible solution > > actualClass > > | actualClass traitName| > ('*classTrait' match: classSymbol) > ifTrue: [ traitName := classSymbol copyUpTo: Character space. > ^ Smalltalk at: traitName asSymbol ifAbsent: [nil]]. > actualClass := Smalltalk at: classSymbol ifAbsent: [^nil]. > classIsMeta ifTrue: [^actualClass classSide]. > ^actualClass > > This raises the question of MethodReference using symbol instead of > pointers to objects. > Funnily the creation methods require a class and not a classname. > I can understand that in certain occasion (manipulating methods of > classes that are not installed in the image > is cool) but in that case may be we should have > MethodReference > RemoteMethodReference > > Stef > > > >

2 4

[Pharo-project] Fwd: Fonts (was Re: [etoys-dev] Wording in Clouds)
by StÃ©phane Ducasse July 31, 2009

July 31, 2009

Begin forwarded message: > From: Bert Freudenberg <bert(a)freudenbergs.de> > Date: July 31, 2009 6:30:19 PM CEDT > To: etoys dev <etoys-dev(a)squeakland.org> > Subject: Re: Fonts (was Re: [etoys-dev] Wording in Clouds) > > > On 31.07.2009, at 08:31, Andreas Raab wrote: > >> Hi - >> >> I've integrated Bert's fix as well as support for .ttc collections: >> >> http://tracker.squeakland.org/browse/SQ-283 >> >> While working on this I realized how outdated the etoys image is >> when it comes to TTF support. I was trying to bring in some other >> necessary fixes but that wouldn't work at all, so I've added a >> filed out version of TTCFont.st from 3.10.2-trunk which has all the >> necessary fixes but probably some other issues. With this version >> things *almost* work: >> >> * Install TTFileDescription.5.cs >> * Install TTCFont.st >> * Install WhiteSpaceFixes.2.cs > > > I tried on a Mac, first failure in #fontOffsetsInFile:. There are > fonts that are tagged 'true' instead of (0 1 0 0): > > http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html > > "The values 'true' (0x74727565) and 0x00010000 are recognized by the > Mac OS as referring to TrueType fonts." > > That's easy to fix. > > Then there are bitmap fonts like "NISC18030.ttf" which cannot be > loaded, they fail when looking for the 'head' table. > > The list of *ttf on the Mac isn't really long, most fonts are not in > truetype format apparently: > > ('Al Bayan' 'Andale Mono' 'AppleMyungjo' 'Arial' 'Arial Black' > 'Arial Hebrew' 'Arial Narrow' 'Arial Rounded MT Bold' 'Arial Unicode > MS' 'Ayuthaya' 'Baghdad' 'Brush Script MT' 'Chalkboard' 'Comic Sans > MS' 'Corsiva Hebrew' 'Courier New' 'DecoType Naskh' 'Devanagari MT' > 'Euphemia UCAS' 'Georgia' 'Gujarati MT' 'Gurmukhi MT' 'Impact' > 'InaiMathi' 'Kailasa' 'Kokonor' 'Krungthep' 'KufiStandardGK' > 'Microsoft Sans Serif' 'Mshtakan' 'Nadeem' 'New Peninim MT' > 'Plantagenet Cherokee' 'Sathu' 'Silom' 'Tahoma' 'Times New Roman' > 'Trebuchet MS' 'Verdana' 'Webdings' 'Wingdings' 'Wingdings 2' > 'Wingdings 3') > > There were 5 more fonts but their names were mangled (IIRC fonts can > store their meta data in various languages and encodings). > > I tried to install "Tahoma" but got the message that the subfamily > "Negreta" (span. "black") is not recognized in > #indexOfSubfamilyName:. After fixing that it worked fine. > > Attaching a changeset with my fixes (though maybe the bitmap > detection should not just rely on errors). > > If anyone else is testing on a Mac you might find this helpful (and > if you do, review and push, thanks): > > http://tracker.squeakland.org/browse/SQ-243 > > - Bert - > _______________________________________________ > etoys-dev mailing list > etoys-dev(a)squeakland.org > http://lists.squeakland.org/mailman/listinfo/etoys-dev

1 0

[Pharo-project] Fwd: Fonts (was Re: [etoys-dev] Wording in Clouds)
by StÃ©phane Ducasse July 31, 2009

July 31, 2009

Begin forwarded message: > From: Andreas Raab <andreas.raab(a)gmx.de> > Date: July 31, 2009 8:31:02 AM CEDT > To: etoys dev <etoys-dev(a)squeakland.org> > Subject: Re: Fonts (was Re: [etoys-dev] Wording in Clouds) > > Hi - > > I've integrated Bert's fix as well as support for .ttc collections: > > http://tracker.squeakland.org/browse/SQ-283 > > While working on this I realized how outdated the etoys image is > when it comes to TTF support. I was trying to bring in some other > necessary fixes but that wouldn't work at all, so I've added a filed > out version of TTCFont.st from 3.10.2-trunk which has all the > necessary fixes but probably some other issues. With this version > things *almost* work: > > * Install TTFileDescription.5.cs > * Install TTCFont.st > * Install WhiteSpaceFixes.2.cs > > (oh, stupid, stupid JIRA - it does not preserve the ordering in > which files were added and you cannot order by date even in "manage > attachments" mode; make sure you do *not* load TTFileDescription.st > since it's outdated) > > * If on Windows, execute: > > TTFileDescription installFamilyNamed: 'Batang'. > > (this is a standard font on Windows which has CJK support) > > * Change the standard menu font to Batang > * Switch the image to Japanese language > > At this point the image blows up somewhere in > TextMorph>>authoringPrototype. But if you proceed and open a menu it > shows CJK-ish looking characters (not that I could tell if it's > correct ;-) > > In any case, using the current versions of TTCFont in 3.10.2-trunk I > was able to produce the attached image which shows a bit of text > from Squeak's wikipedia entry in various languages. > > Yoshiki - for some strange reason it seems that some of the glyphs > in the Japanese entry are substituded by the default glyph (see the > fourth glyph in what I think is the phonetic transcription of Squeak). > > Do you have any idea if that is the expected behavior for Batang or > if there might be something wrong? It would be good if we could get > the text in Squeak to show up correctly, and I'm at a loss here > since I have no idea even what code ranges to look at ;-) > > Cheers, > - Andreas > _______________________________________________ > etoys-dev mailing list > etoys-dev(a)squeakland.org > http://lists.squeakland.org/mailman/listinfo/etoys-dev

1 0

[Pharo-project] Kom not starting in Pharo-web image
by Adrian Lienhard July 31, 2009

July 31, 2009

In the latest Pharo-web image on startup HttpService complains that 'a service is already running on port 8080' (stack trace attached). Damien said he loaded the latest versions of Seaside/Kom from SqueakSource. If I do "WAKomEncoded startOn: 8080" and restart the image, it works. Is this a known problem and if not, what would be the right place to report it? On the Seaside bug tracker? Cheers, Adrian

2 1

[Pharo-project] [update] #10402
by Marcus Denker July 31, 2009

July 31, 2009

10402 ----- Issue 1019: 0006579: String>>#findLastOccuranceOfString:startingAt: isBuggedWhen: [substring first=substring last] Issue 1021: References to 'squeak' Issue 1015: The BlockClosureTests package is empty and should be removed Issue 1016: Package FreeType overrides methods in CanvasCharacterScanner which is not in the core Marcus -- Marcus Denker - http://marcusdenker.de PLEIAD Lab - Computer Science Department (DCC) - University of Chile

1 0

[Pharo-project] Beginner Tasks
by Jeff Gonis July 31, 2009

July 31, 2009

Hi Everyone, I have been following Pharo for some time now, after starting off my smalltalk experience with Squeak By Example. I was wondering if there were any tasks suited to relative smalltalk beginners that could aid Pharo? I would like to contribute to the project but I consider my smalltalk skills still fairly basic, so are there tasks that I could accomplish that would aid the project without requiring expertise? Does documentation need to be written about something, do test scripts need to be run on new changes, are there basic fixes that need to be made that people are too busy to get to at the moment? I would be willing to assist with any and all of these, so please let me know what I can do. Thanks for your time and your efforts! Jeff G.

8 10

July 31, 2009

Hi I would like to know if Gofer is also working deconnected. I often work in places where internet connection is not working and I would love to see my loading scripts checking my local cache for loading packages. If this is not there yet, Lukas may be I could add this features to Gofer? Stef

2 2

[Pharo-project] [update] #10396, #10397, #10398
by Marcus Denker July 30, 2009

July 30, 2009

10396 ----- Issue 996: HostSystemMenusTest fails when you aren't in Mac Issue 997: SystemChangeNotification Improvements Issue 628: Shortcut for "Debug it" Issue 990: Preferences > halos > halosEnabled does not enable the halos Issue 995: Preference halosEnabled still there 10397 ------ Reload dirty package 10398 ----- Issue 1000: OCompletion overrides a method of the core Bugreport 1000 has been filed and closed! The prize goes to Damien Cassou. -- Marcus Denker - http://marcusdenker.de New! Now with twitter: http://twitter.com/marcusdenker

4 3

July 30, 2009

> > > Hi > > I'm trying to fix the problem of actualClass and I realize that > actualClass is invoked all the time by the browsers > on redisplay. I wonder why the browser are refreshing when normally > they should only do that on events. > > Stef > > >

2 2