- Pharo-users - lists.pharo.org

Want to connect two morphs with a line.
by Zeeshan Ansari April 27, 2013

April 27, 2013

Hi All, I want to connect two morphs with a line for a UML editor application I'm working on. I want to show the line being created as the user moves the mouse from the source morph to the target morph. Once the mouse is over the target morph and the mouse released, the line should be created. Can someone explain how I would go about doing this. Which events would I need to capture, etc. Thanks.

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CommandShell - linux - missing directory in path
by Ingo Hohmann April 27, 2013

April 27, 2013

Hi all, as far as I know, NativeBoost does not yet allow starting external programs on linux, so I'm trying to use CommandShell. CommandShell new open; command: 'ls -l' . And I get an error: DirectoryDoesNotExist: Path / 'usr' / 'local' / 'sbin' I must admit, that this directory is in $PATH, but is not available on disk. Is there a deeper reason to signal an error in this case, or should this be treated as a bug? (Pharo 2.0) Kind regards, Ingo

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Monticello - break up a package
by Ingo Hohmann April 27, 2013

April 27, 2013

Following up on my quest to get SandstoneDb to run on Pharo 2.0. Ramon asked me to break out my changes to the file store into another package, so that it is possible to just use the appropriate package for different Smalltalk versions. Now, how do I best do that? When I tried it before, I got a new package with no acestors, but the same content still in the "base" package. Thank you for your help so far. Kind regards, Ingo

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Re: [Pharo-users] NativeBoost
by Rocio Amaya April 26, 2013

April 26, 2013

Thank you all for the help! :) Best Regards.

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NativeBoost
by Rocio Amaya April 26, 2013

April 26, 2013

Hi everybody! IÂ´m Rocio. IÂ´m new and IÂ´m learning NatiBoost, also IÂ´m reading an official wiki and I am interested in finding more information about it. Can you help me please? Thanks!! Best Regards

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Highlighter PetitParser
by Jesus NuÃ±ez April 26, 2013

April 26, 2013

Hello everybody, The following code highlights prolog code statically making use of PPTextHighlighter, I leave the code to share with the community since it might be of help to someone else. Could someone point out how can this be converted to its dynamic counterpart?; The keystroke handler for GLMTextPresentation and what model is currently being used for instance to highlight smalltalk code would be very much appreciated. >From http://bergel.eu/download/Dyla2010/dyla10_submission_4.pdf I know that it might be neccesary a fuzzy highlighter as is written at the end of the code, and it is probably the right object to use but I can not figure out where to plug it. Thank beforehand, Jesus | text textRenderer textShower | text := 'p(Q,R):-q(R), unify_st(X, smalltalk_code), r(T). q(Q):-d(R). q(Q).'. textRenderer := [ PPTextHighlighter new parser: PPPrologParser new; color: 'small_atom' with: Color blue muchDarker; bold: 'small_atom'; color: 'unify_st' with: Color green muchDarker; bold: 'unify_st'; color: 'string' with: Color gray muchDarker; color: 'number' with: Color gray muchDarker; color: 'boolean' with: Color gray muchDarker; highlight: text asText. ]. " __ | <Renders IN> | W GLMTextPresentation | <Renders IN> | W GLMMorphicRenderer " textShower := GLMMorphicRenderer new. (textShower open: ( GLMTextPresentation new display: textRenderer; renderGlamorouslyOn: textShower; yourself )) window title: 'Prolog Editor'. "Here I created a highlighter through the transform method of the grammar" grammar := PPPrologParser new. highlighter := grammar transform: [ :parser | Transcript show: parser. parser class = TokenParser ifTrue: [ parser ==> [ :token | textShower model highlight: token style range: token interval ] ] ifFalse: [ parser ] ]. text := 'p(Q,R):-q(R), unify_st(X, smalltalk_code), r(T). q(Q):-d(R). q(Q).'. pp := highlighter parse: text asText.

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Setters for instance variables
by Mohammad Al Houssami (Alumni) April 25, 2013

April 25, 2013

Hello again, If I have an instance variable A in ClassA and I want to use it in ClassB. If I do the following in ClassB objectA := ClassA new. objectA A: "new value for A". Why doesn't this work? Isnt this calling the setter of A on the objectA ? Pharo doesn't understand it for some reason .

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SandstoneDB on Pharo 2.0 - done - what next?
by Ingo Hohmann April 25, 2013

April 25, 2013

Hi, because I haven't found a version of SondstoneDB for Pharo 2.0, I have migrated it myself. All tests are green, except for 2 performance tests. Well, it's the first time I did anything on someone elses code, that's worth sharing, so I'm a little bit unsure on the etiquette, and what to do technically. Kind regards, Ingo

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SandstoneDB on Pharo 2.0 - done - what next?
by Torsten Bergmann April 25, 2013

April 25, 2013

Yes - the SandstoneDb project on Squeaksource is read/write - just commit. Esteban wrote: >also, I noticed there is no "ConfigurationOfSandstoneDB"... There already is one in MetacellRepository, just look at the comments below the video: http://www.pharocasts.com/2010/04/sandstonedb-simple-activerecord-style.html I assume your package is based on "SandstoneDb-RamonLeon.148.mcz" from http://www.squeaksource.com/SandstoneDb.html If so please commit your changes so others can try. If OK we can adopt the config in "MetacellRepository" and later put it into "MetaRepoForPharo20". If in doubt just ask! Bye T.

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Cannot be recompiled
by Martin Dias April 25, 2013

April 25, 2013

Hi, In: Object subclass: #A instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'Unclassified'. (Smalltalk at: #A) subclass: #B instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'Unclassified'. Object variableSubclass: #A instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'Unclassified'. ---> why do we raise the error "B cannot be recompiled"? what's the problem with reformatting subclasses automatically? best regards, Martin

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