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Cursor location in a form
by DougEdmunds April 3, 2011

April 3, 2011

I have a form with several fields (a,b,c) and a button. The button should only be enabled when the cursor is in field b. How can I tell when the cursor is in that field? builder newButtonFor: self action: #openLessonListEditor getEnabled: #hasSelectedCurrentLesson label: 'Edit current lesson' help: 'Edit current lesson'. I want #hasSelectedCurrentLesson to return true only when the cursor is in field b. -- View this message in context: http://forum.world.st/Cursor-location-in-a-form-tp3422745p3422745.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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[OT] Blog sequence "Journey through the VM"
by Mariano Martinez Peck April 2, 2011

April 2, 2011

Hi folks. I will start a sequence of VM related posts called âJourney through the VMâ, similar to what Igor did in Deep Smalltalk School<http://www.inria.fr/centre-de-recherche-inria/lille-nord-europe/agenda/smal…>. My main focus is that a regular Smalltalker, without any knowledge in VM stuff can understand the basis of it (ObjectMemory, Interpreter, etc). In addition, I expect the reader can download, change, compile, run, and debug (and why not fixing?) the VM. Later on in the journey, I would also like to talk about what the compiler does, what bytecodes are, how to read them, how they are mapped to the VM, etc. I will also show some hooks or tricks that the VM provides and that are not always known. Moreover, I will explain what a primitive is, how they are executed by the VM, how you can write your own primitives, etc. FFI and writing your own plugin are also in my plans. It is important to notice that all these posts are thought for VM newbies. I would appreciate if there can be some VM hackers paying attention that I don't say stupid things. http://marianopeck.wordpress.com/ Cheers

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Re: [Pharo-users] More elegant way?
by Marcus Denker April 1, 2011

April 1, 2011

On Apr 1, 2011, at 10:10 AM, Friedrich Dominicus wrote: > AxiNat <tibabenfortlapalanca(a)gmail.com> writes: > >> Hi Friederich, here's two simple optimizations: >> >> #(#nul #soh #stx #etx #eot #enq #ack #bel #bs #tab #lf) >> withIndexDo: [:each :index | >> self class compile: each asString , ' ^ asciiField at: ', index >> asString.]. >> >> Array withAll: #(1 2 3) is equivalent to #(1 2 3), and if you're not going to >> use the array again, you don't even need to assign it to a variable :) > Well I do not want the compile part with String So you could override #doesNotUnderstand: and there check if someone sends a message #etx (and the others) and then return the value. (you then want to store the value in a dictionary keyed by the the message name). doesNotUnderstand: aMessage | dict | dict := (#(nul soh stx etx eot enq ack bel bs tab lf) collectWithIndex: [:elem :index | elem -> index]) asDictionary. ^dict at: aMessage selector ifAbsent: [^super doesNotUnderstand: aMessage]. But of course doesNotUnderstand: is always a bit magic... and should be used with care. As for strings stiched together: yes, *horrible*. And we plan to move on to something better soon. In general, I like the idea to have a reflective model of the structure of methods... When talking about code, we should not use string... the Quasi-Quoting from Helvetia is far better than string manipulation: http://scg.unibe.ch/research/helvetia/examples#168249369 That combined with a good AST should make these things much easier. Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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fileIn without initializing
by AxiNat April 1, 2011

April 1, 2011

Hi list, Is there a way to fileIn a .st file without having the classes to be automatically initialized? Thanks! Bernat Romagosa

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[OT] I've started blogging
by Mariano Martinez Peck April 1, 2011

April 1, 2011

Hi guys. Just in case someone is interested, I've have started blogging: "Sending messages through small talks" The blog is here: http://marianopeck.wordpress.com/ Any kind of feedback is more than welcome. Mariano

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Re: [Pharo-users] File browser and Monticello buttons
by Marcus Denker March 30, 2011

March 30, 2011

On Mar 30, 2011, at 7:15 PM, DougEdmunds wrote: > 1. File browser (after selecting a *.st file): > What is the difference between 'install' and 'fileIn' buttons? > "install" loads it in a new changeset (named like the file). filein loads in the current changeset. > 2. Monticello (after selecting a repository): > What is the difference between 'load', 'merge' and 'adopt' buttons? > load will destroy all you changes and just load the package. Merge will do a merge between your version and the one you are loading based on the last version that they share. There is some documentation here: https://gforge.inria.fr/frs/download.php/27018/Monticello.pdf -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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File browser and Monticello buttons
by DougEdmunds March 30, 2011

March 30, 2011

1. File browser (after selecting a *.st file): What is the difference between 'install' and 'fileIn' buttons? 2. Monticello (after selecting a repository): What is the difference between 'load', 'merge' and 'adopt' buttons? -- View this message in context: http://forum.world.st/File-browser-and-Monticello-buttons-tp3418741p3418741… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] Show a variable name in Transcript
by Marcus Denker March 29, 2011

March 29, 2011

On Mar 29, 2011, at 2:03 AM, DougEdmunds wrote: > Is there a way to get to the name of a temporary variable used in a method > to show it in a Transcript without putting it in a string? > > someMethod > |builder| > builder := #( 1 2 3). > you can ask the context for all defines temps and take the first: thisContext tempNames first -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Is there a way to know line separator for the current os?
by Panu Suominen March 29, 2011

March 29, 2011

I did not find a way to get line separator in the system independent manner. Linux uses character 10 (lf), windowses (two characters: 10, 13), and mac uses 13(not sure?). Is there already a way to do this? If not I can open a issue and propose a fix. -- Panu

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Re: [Pharo-users] [SqueakDBX] Re: [Pharo-project] PharoCasts with experts
by Mariano Martinez Peck March 29, 2011

March 29, 2011

On Mon, Mar 28, 2011 at 8:07 PM, laurent laffont <laurent.laffont(a)gmail.com>wrote: > On Mon, Mar 28, 2011 at 7:46 PM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> >> >> On Mon, Mar 28, 2011 at 9:03 AM, laurent laffont < >> laurent.laffont(a)gmail.com> wrote: >> >>> Hi, >>> >>> Actually I'm training remotely a developer on Pharo using Skype and >>> TeamViewer. This guy records all sessions for its own purpose and I like the >>> idea. >>> >>> For PharoCasts I would like to record 30mn to 1 hour sessions (as I know >>> you don't have time) with an expert who shows us real code, explaining a >>> framework / programming style / pattern while programming some examples (in >>> the spirit of PharoCasts, and may be >>> http://forum.world.st/Screencast-proposition-Watch-someone-read-code-td3244…) >>> >>> Right now I'm thinking about: >>> - Mariano on DBXTalk >>> >> >> Hi Laurent. I will be happy to do one, but I won't have time until 2 >> weeks. But after that, I will try. >> > > Cool ! > > > >> I have NO IDEA how to do an screencast, but I can try. >> > > You speak & code, I ask & record :) > > We can start with: > - what SqueakDBX is ? > One of the commonly needed things to be able to bring food to your kinds while doing Smalltalk :) > - how can I load it and make it works > - do some basic select / update / insert requests and explore results > - the cool stuff you like > Ok. Perfect. If everything goes well, we can do after a GlorpDBX one ;) BTW, I think it is a good moment to said that our website has a lot of documentation and we welcome any feedback. In www.squeakdbx.org you can find a lot of documentation. If you dare, there are also some videos of talks/presentations we have been doing in the last years...but we aware...I have an ugly spanglish voice :) Luckely, there are slides also: http://www.squeakdbx.org/media > > Let's do a first one, we'll improve later. > > Laurent. > > I cc'ed the SqueakDBX mailing list since I am all ears to hear what people >> want to see about SqueakDBX. In you have something in mind, please let me >> know. >> >> >>> - Gary on Polymorph >>> - Igor on VM debugging or FFI / NativeBoost (for example interfacing >>> with http://id3lib.sourceforge.net/ or other lib) >>> - Lukas on Magritte or PetitParser >>> - Dale on Metacello >>> - Nicolas on Iliad >>> - Janko on Aida/Web >>> >>> and all that I forgot ..... I'm sure plenty of people would like their >>> open-source project to be more known. This may be an opportunity. >>> >>> >>> How to do this: contact me if you wish to do that so we can choose an >>> hour that match our respective calendars and agree on tools used (skype, >>> google video chat, vnc, teamviewer, ....) - I will care about video stuff. >>> Just talk and code :) >>> >>> >>> Anyone ? >>> >>> >>> Laurent Laffont - @lolgzs <http://twitter.com/#%21/lolgzs> >>> >>> Pharo Smalltalk Screencasts: http://www.pharocasts.com/ >>> Blog: http://magaloma.blogspot.com/ >>> Developer group: http://cara74.seasidehosting.st >>> >>> >> >> _______________________________________________ >> SqueakDBX mailing list >> SqueakDBX(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/squeakdbx >> >> >

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