January 2017 - Pharo-users - lists.pharo.org

UK Smalltalk User Group Meeting - Monday, January 30th.

by Giovanni Corriga

Happy New Year! The first 2017 meeting of the UK Smalltalk User Group Meeting will be on Monday, January 30th. We'll meet at our usual venue The Counting House ( http://www.the-counting-house.com/) at 7pm. If you'd like to join us, you can just show up at the pub. You can also sign up in advance at the meeting's Meetup page: *https://www.meetup.com/UKSTUG/events/236496717/ <https://www.meetup.com/UKSTUG/events/236496717/>* . See you there! Giovanni

Jan. 7, 2017

Re: [Pharo-users] understanding existing code

by Siemen Baader

Thanks for all these tips and reflections. There are a number of things for me to try now. @Hilaire: I'll try try Calypso. There are indeed several things one could experiment with in making the important connections more visible in the development tools. I have also been thinking of a more OSX/GT like browser design that just opens new panels to the right and opens inheritance view, code view, class side methods in that way too... it would be more compact and uniform and easier to put relevant pieces side-by-side. @Ben: Clever to use the profiler to see what the code does most of, I didn't think of it. Also thanks for your tips on the general workflow of understanding the code, everyone. I'm glad you have provided so much input and discussion, I was following it eagerly. thanks, Siemen

Jan. 7, 2017

Re: [Pharo-users] Mouse events in FastTableModel subclass [Spec]

by Matteo

Hi Henrik, thanks for the hint. (I think that the code snippet misses the definition of the "example" variable). Unfortunately the "problem" is located in the "Morphic Side" of the "FastTableModel" class. Specifically the "FastTableModel" class relies on the "MorphicFastTableAdapter" which in turn (surprisingly) uses the "FTPluggableIconListMorphAdaptor", and not the "FTTableMorph" as I would expect. The announcer for the "double click" is coded in the "FTPluggableIconListMorphAdaptor>>initializeSelections", by the announcement "FTStrongSelectionChanged", as follow: --------------------- initializeSelections self onAnnouncement: FTSelectionChanged send: #selectionChanged: to: self. self onAnnouncement: FTStrongSelectionChanged send: #strongSelectionChanged: to: self. --------------------- In my case "PictureListModel" is a subclass of "FastTableModel" and it has been connected to a "FTTableMorph" object (through the "MorphicPictureListAdapter") and NOT to a "FTPluggableIconListMorphAdaptor" one. In this way the "double click" has been lost. I've wanted to avoid the "FTPluggableIconListMorphAdaptor" because it seems a bridge for legacy code, as reported in a previous post, see http://forum.world.st/Spec-Setting-rows-height-of-a-pictures-list-tp4920861…. Cheers, Matteo On 06/01/17 18:20, Henrik Nergaard wrote: > You can get the selection directly in FastTableModel by Setting #handlesDoubleClick: to true and the event handler block using #doubleClickAction: > > --------------------- > FastTableModel new > icons: [ :e | example iconNamed: #forwardIcon ]; > items: (1 to: 10) asArray; > handlesDoubleClick: true; > doubleClickAction: [ :ftStrong | ftStrong inspect ]; > whenSelectedItemChanged: [ :new :old :something :announcment | { new . old . something . announcment } inspectOnce ]; > openWithSpec. > ----------------------- > > Best regards, > Henrik > > -----Opprinnelig melding----- > Fra: Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] PÃ¥ vegne av Matteo > Sendt: 06 January 2017 16:35 > Til: pharo-users(a)lists.pharo.org > Emne: Re: [Pharo-users] Mouse events in FastTableModel subclass [Spec] > > Update: problem fixed by adding an "Announcer" to the "double click" > event, i.e.: > > morWidget > onAnnouncement: FTStrongSelectionChanged > send: #doubleClick: > to: self. > > Where "morWidget" is the morphic object representing a list of pictures, "self" is the "MorphicPictureListAdapter", which creates the "morWidget" object. > The method "doubleClick:" contains the actions to be performed when the event is triggered. > > Note that, in the "FTAnnouncement" hierachy, the "double click" event is represented by the class "FTStrongSelectionChanged", which I found a little tricky. > > Bye, > Matteo >

Jan. 7, 2017

Re: [Pharo-users] understanding existing code

by Dimitris Chloupis

mind maps can extend into infinite complexity and detail, so yes the mind map will become a memory the more you use it but you still can create thousands of mind maps like I did with little chance of remembering all. I will say that for experts mind maps are far more important because a newbie even though he or she may benefit from it, the beginner concept are simple enough to be found among tutorials and documentation. On the other hands experts tend to dive a lot deepers into areas that are not well documented obscure and difficult to understand . This is where mind maps shine. I used mind maps on my master degree where we dealt with very special complex cases that went far beyond the fundamentals of law. To be exact Commercial and E-Commercial Law. My dissertation was quite a challenge, was dealing with the legal protections offered against malicious attacks and malicious software. Mind maps helped me identify important key points that was very hard to understand just by reading text and trying to memories and make sense of it. I even passed some exams using nothing more than mind maps created by other students in a fraction of time it would have taken by just reading the books. Of course to form any kind of map you need first to explore. But personally I more interested in expert and not beginner mind maps. Especially areas that even this mailing list has problems providing an answer. On Fri, Jan 6, 2017 at 10:56 PM Hilaire <hilaire(a)drgeo.eu> wrote: > Once you are an expert the mind map is in your mind, but it does not > mean the mind map is useless for newbie. So every thing helping the > newbie to build their own mind map is important to catch them and more > importantly to make them stay with Pharo > > Le 06/01/2017 Ã 21:39, Dimitris Chloupis a Ã©crit : > > > > A thing I want to try is is creating mind maps tool inside Pharo, a > > variant of the pen and paper technique I was using when I was studying > Law. > > -- > Dr. Geo > http://drgeo.eu > > >

Jan. 6, 2017

Re: [Pharo-users] [Pharo-dev] Call of projects of open-dev lectures

by Damien Pollet

On 6 January 2017 at 21:04, Hilaire <hilaire(a)drgeo.eu> wrote: > How should I understand 12 * 4 hours? > 12 hours by student in a team of four? > Ten weeks with 4 dedicated hours every friday afternoon, in groups of 3 to 5 -- Damien Pollet type less, do more [ | ] http://people.untyped.org/damien.pollet

Jan. 6, 2017

Re: [Pharo-users] understanding existing code

by phil＠highoctane.be

Well, what can help is the ability to create a gist and retrieve/search/list them. https://developer.github.com/v3/oauth/#scopes https://gist.github.com/caspyin/2288960 https://developer.github.com/v3/oauth_authorizations/#create-a-new-authoriz… This would be nice to be able to push things from Playground or emails of the list or Slack into gists right from Pharo. I have a couple that I look at from time to time: https://gist.github.com/philippeback It is boring to go to github and do it by hand, so, a feature along those lines can be helpful for all of us. Phil On Fri, Jan 6, 2017 at 9:55 PM, Hilaire <hilaire(a)drgeo.eu> wrote: > Once you are an expert the mind map is in your mind, but it does not > mean the mind map is useless for newbie. So every thing helping the > newbie to build their own mind map is important to catch them and more > importantly to make them stay with Pharo > > Le 06/01/2017 Ã 21:39, Dimitris Chloupis a Ã©crit : > > > > A thing I want to try is is creating mind maps tool inside Pharo, a > > variant of the pen and paper technique I was using when I was studying > Law. > > -- > Dr. Geo > http://drgeo.eu > > > >

Jan. 6, 2017

Re: [Pharo-users] understanding existing code

by Hilaire

Once you are an expert the mind map is in your mind, but it does not mean the mind map is useless for newbie. So every thing helping the newbie to build their own mind map is important to catch them and more importantly to make them stay with Pharo Le 06/01/2017 Ã 21:39, Dimitris Chloupis a Ã©crit : > > A thing I want to try is is creating mind maps tool inside Pharo, a > variant of the pen and paper technique I was using when I was studying Law. -- Dr. Geo http://drgeo.eu

Jan. 6, 2017

Re: [Pharo-users] understanding existing code

by Dimitris Chloupis

A thing I want to try is is creating mind maps tool inside Pharo, a variant of the pen and paper technique I was using when I was studying Law. Because our Law curriculum was enormous with no chance of remembering even most of it, also my memory is kinda weak. I decided to start creating mind maps which are nothing more than diagrams that lay down the basic principles of what I am reading. The "juice of knowledge". Creating mind maps is probably my most powerful tool because the most important process is understanding. Mind maps make it very easy to reach such an understanding because mind maps focus more on the relations between things than the actual things. Its also important do understand not only the code of others but also where you wanna go with your own code.

Jan. 6, 2017

Re: [Pharo-users] understanding existing code

by Hilaire

What you say here is very important, it is usability problem report. Often expert users and developers are trapped in their own world: want to add the super cool and elaborated features in the browser, but can't see that super cool and simple feature addition to the browser that will make life easier for new Pharo user ( = user acceptability = will the user stay with Pharo or will it move away after 1 hour of test and try?) A few weeks ago Denis posted about Calypso, and his browser comes with what you will need: code pane tabs. Damn! How can't think about it earlier. In the past I did complain about usability problem, mainly with undocumented feature in the interface (no tooltip). I don't care personally but I exactly know how a newbie will fell against a poorly helpful UI, especially when Pharo argument about its super cool IDE. Pharo developers should get serious about usability and discoverable features (include not only method comment but clearly written tooltips). Pharo 5 was released with really poorly documented UI code, although the tools set is all there (settings browser). Hilaire Le 05/01/2017 Ã 20:24, Siemen Baader a Ã©crit : > that helps, and reading tests and comments helps if they exist. But I > often get trapped in drilling down a long call stack and opening many, > many browser windows, a new one for every message send to a new class. > -- Dr. Geo http://drgeo.eu

Jan. 6, 2017

Re: [Pharo-users] [Pharo-dev] Call of projects of open-dev lectures

by Alexandre Bergel

Hi Stef, Here is the Roassal part: Webpages: http://agilevisualization.com http://moosetechnology.org Mailing-list: https://www.list.inf.unibe.ch/listinfo/moose-dev Bug tracker: https://github.com/moosetechnology/Moose/issues Cheers, Alexandre > On Jan 4, 2017, at 11:48 AM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > > Hi > > We are organising a lecture where students should > - learn pharo > - learn how to communicate with open source community > - learn how to reverse engineer, fix bugs.... > They should work by 3/4. > > We are looking for projects that would like to accept > - propose some bugs to be fixed > - to communicate with newbies and from time to time > > I was thinking about > - MDL > - Roassal > - Moose ? > - Pillar ? but nobody beside me and I do not have the time > - DRGeoII > - Telescope > - Artefact > - Scale > - Ecstatic > > So if you have a project and you want to participate. > We would like to have > - web page? > - mailing-list > - bug trackers/todo? > > Stef -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

Jan. 6, 2017