January 2015 - Pharo-users - lists.pharo.org

smalltalk, objects and design - chamond liu
by Mayuresh Kathe Jan. 26, 2015

Jan. 26, 2015

hello, would the book; smalltalk, objects and design by chamond liu be considered good to work through using "pharo"? i am currently working through; squeak, a quick trip to object-land. while nice as an introduction, doesn't feel like it might be deep enough for me as i progress further. i am looking at the pharo books, but, a previous discussion mentioned something about newer versions being in the works, would prefer to wait for them. ~mayuresh

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Re: [Pharo-users] smalltalk, objects and design - chamond liu
by Joachim Tuchel Jan. 26, 2015

Jan. 26, 2015

Am 26.01.2015 04:48 schrieb Mayuresh Kathe <mayuresh(a)kathe.in>: > > thanks. a question; would the second book require me to work through the > original book on design patterns first? > No, you will able to understand the Smalltalk companion without the pattern bible. Chamond Liu is definitely a good book! Joachim > ~mayuresh > > On Sun, Jan 25, 2015 at 06:06:31PM -0800, Sebastian Heidbrink wrote: > > Definitely a good book! > > > > You might also consider these, too: > > > > for the couch, or desk while waiting: > > http://sdmeta.gforge.inria.fr/FreeBooks/WithStyle/SmalltalkWithStyle.pdf > > > > a must > > http://www.amazon.ca/The-Design-Patterns-Smalltalk-Companion/dp/0201184621 > > > > Sebastian > > > > > > On 2015-01-25 1:37 PM, Mayuresh Kathe wrote: > > >hello, > > > > > >would the book; smalltalk, objects and design by chamond liu be > > >considered good to work through using "pharo"? > > > > > >i am currently working through; squeak, a quick trip to object-land. > > >while nice as an introduction, doesn't feel like it might be deep enough > > >for me as i progress further. > > > > > >i am looking at the pharo books, but, a previous discussion mentioned > > >something about newer versions being in the works, would prefer to wait > > >for them. > > > > > >~mayuresh > > > > > > > > > > > > > > >

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Re: [Pharo-users] UI framework&design options
by Stephan Eggermont Jan. 26, 2015

Jan. 26, 2015

That Maya Node Editor looks like a PasteUpMorph with Connectors to me. You'd might want to wrap them (Morphic) in a in a standard window with menu bar and toolbar from either Spec or Glamour for now. And then follow Bloc developments to move there. Stephan

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UI framework&design options
by Sebastian Heidbrink Jan. 25, 2015

Jan. 25, 2015

Hi! I need to visualize&manipulate data within a graph representation. Something like the "Maya Node Editor <http://around-the-corner.typepad.com/adn/2013/09/maya-node-editor-and-attri…>". I am also interested in decorationless windows&widgets. Is it possible to embed entry fields, lists and such in the "desktop" of pharo? What is suitable for overlay menus? What would be the current framework to go with Pharo? Which one will still stay for a while (is supported by Pharo) and is thought to be well tested. Thank you for any advice, link, video, picture or hint. Sebastian

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improving print-it in playground
by Tudor Girba Jan. 25, 2015

Jan. 25, 2015

Hi, I worked with Andrei to find a solution for improving the print-it support. You can take a look here: http://www.humane-assessment.com/blog/improving-print-it-support-in-gtplayg… The current solution can be found in the latest Pharo image. Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow"

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comparing FileReference
by Martin BÃ¤hr Jan. 25, 2015

Jan. 25, 2015

hi, i can't seem to figure out how to normalizethe path of a FileReference i am trying to compare FileSystem disk root / 'local/lib' with Filesystem disk workingDirectory / '..' but they don't match because the latter produces: File @ '/local/lib/pharo4/..' i'd expect to be able to compare two references as equal if they point to the same directory on disk, regardless of the path getting there. is there any way to accomplish that? greetings, martin. -- eKita - the online platform for your entire academic life -- chief engineer eKita.co pike programmer pike.lysator.liu.se caudium.net societyserver.org secretary beijinglug.org mentor fossasia.org foresight developer foresightlinux.org realss.com unix sysadmin Martin BÃ¤hr working in china http://societyserver.org/mbaehr/

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when was pharo announced to the world?
by Mayuresh Kathe Jan. 25, 2015

Jan. 25, 2015

hi, a trivial question; when was pharo announced to the world? we all could use that day as the one to collectively chip in some amount towards the project's operational expenses. a nice burst of funds, once a year might be a good thing compared to a funding drive (as some of the other open source projects carry out). ~mayuresh

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Re: [Pharo-users] "Improper store into indexable object" and weird variable names
by stepharo Jan. 25, 2015

Jan. 25, 2015

Davide consider that Pharo 20 is around 2 years old and we massively improved the system since then. And that it can take you one afternoon probably to migrate to 3.0 (which is also one year old). Stef

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NBSQLite3 on OS X - Pharo 3
by Mircea S. Jan. 25, 2015

Jan. 25, 2015

Hello everyone, I was looking into NBSQLite3 using the guide on smalltalkhub, pasted it below. 1. NBSQLite3 seems to be missing from "Tools" -> "Configuration Browser" so I had to use the Gopher script. 2. I can't seem to get the around to installing the sqlite engine on my mac. What is the default folder there? Do I need this? 2a. On the same page with the one above. What is the location where the db.sqlite file must be copied to? On the mac I can put it in the same folder (no go) or "show package contents" on Pharo itself to see the folders inside the package, tried Contents/Resources there but no dice. No matter what I try I get a NBSQLite3Error: unable to open database file form one of the reasons above. Thank you, Mir S. Installation You can access NBSQLite3 from the Pharo configuration browser. Just select "Tools" -> "Configuration Browser" from the world menu, enter "NBSQLite3" and install the stable version. Alternatively to install the packages manually into your Pharo image just evaluate: Gofer new url: 'http://smalltalkhub.com/mc/PharoExtras/NBSQLite3/main'; package: 'ConfigurationOfNBSQLite3'; load. ((Smalltalk at: #ConfigurationOfNBSQLite3) project stableVersion) load. If you need access to the SQLite3 database engine you need at a minimum the "NBSQLite3-Core" package which is loaded by the ConfigurationOfNBSQLite3 class. This package includes all necessary API to access the sqlite engine. Use in your own application Providing the library files To use the sqlite3 database engine in own Pharo projects you need to install the "sqlite3" database engine first. Basically it is only a shared library component that has to be found by the Pharo virtual machine. For instance on Windows operating system you can download the "sqlite3.dll" component from http://www.sqlite.org/ and copy it into the same directory where the Pharo VM (Pharo.exe) is. After loading NBSQLite3 as described before you can run the unit tests to see if anything is correctly setup and the virtual machine is able to find the sqlite3 engine. Use in your code Creating a connection The most important class to use for creating a database is the class NBSQLite3Connection. For instance the following expression: NBSQLite3Connection on: 'myfile.db'.

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Spec, Morphic, lists, multiple selection and drag&drop
by Piotr Klibert Jan. 25, 2015

Jan. 25, 2015

Hi, working towards my app I encountered another problem. It's about drag and drop support for lists in Spec and underlying Morphs. While multiple selection is well supported in PluggableListMorph, reading #startDrag: and #startDragExtended: led me to believe that there is no support for dragging a bunch of list elements at once. It looks like drag is always initialized for the element that was clicked (dragIndex := self rowAtLocation: evt position.) and I see no easy extension point for changing this to support dragging all selected items instead. Am I missing some methods or classes that would let me do this, or is this indeed not possible right now? How would I go about implementing it? Best regards, Piotr Klibert

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