Beginners September 2008

beginners@lists.squeakfoundation.org

56 participants
87 discussions

Is there a tandard way to attach context menus
by Herbert König 04 Nov '11

04 Nov '11

Hello all, is there a standard way to attach a context menu to a morph? It's fairly easy to do by checking for yellowButtonPressed and manually firing up a MenuMorph. But it is sufficient to implement #addCustomMenuItems:hand: to get an enhanced Halo menu while #addYellowButtonMenuItemsTo:event: and #hasYellowButtonMenu don't help. So is there a predefined way without everybody doing his own? Thanks, Herbert mailto:herbertkoenig@gmx.net

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Omnibrowser help
by Rob Rothwell 14 Aug '11

14 Aug '11

Are there some tips/documentation somewhere on getting the most out of the OmniBrowser? The MulitpleSelection browser looks interesting (sort of like the tabbed browser in VisualWorks), but I don't quite understand its behaviour and what method it decides to show in which pane when you move around or save changes. On the same topic, can anyone point me toward how I could add a new item to the class context menu in the OmniBrowser? I want to add a new template selection menu item (like "new class template" and "new trait template") because I have created a method that creates TWO classes at the same time for an Aida application (A domain model class AND its associated WebApp class). Thanks, Rob Rothwell

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MonticelloBrowser question
by Ch Lamprecht 23 May '09

23 May '09

Hello, could anybody help me to understand, how to use MonticelloBrowser? (Working with 3.9 #7067) I read SBE and it says: " The right-hand pane lists all of the source-code repositories that Monticello knows about, usually because it has loaded code from them. If you select a package in the left pane, the right pane is filtered to show only those repositories that contain versions of the selected package." However, I don't see that happen. If I select e.g. OmniBrowser in the left pane, the list in the right pane is reduced to a local path on my filesystem (the package-cache). But if I deselect all in the left pane to see all the repositories in the right pane, then select 'http://source.wiresong.ca/ob' and open the repository I get a browser containing lots of newer version of OmniBrowser (and other packages). Now these repository browsers always take some time to load and I have to check different repositories by hand to find the latest version. What is the right way to search (and update) to the latest release of a package? Thanks for your help, Christoph

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Tools flap icon order
by Mark Volkmann 14 Nov '08

14 Nov '08

Is there an easy way to change the order of the buttons on the Tools flap? It seems like they should either be in alphabetical order or in order by how frequently they are used. To my beginner eyes it doesn't seem that either is the case since Browser is at the bottom. --- Mark Volkmann

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exception handling lingo
by Mark Volkmann 01 Oct '08

01 Oct '08

I asked this earlier, but it wasn't the first question in my email, so it may have been overlooked. In Smalltalk lingo is it correct to say "signal" and "handle" in place of Java's "throw" and "catch"? --- Mark Volkmann

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TODO comments and searching
by Mark Volkmann 01 Oct '08

01 Oct '08

If I put TODO comments in my code to mark things I still need to finish, is there an easy way to get a list of all of those? For that matter, how do you search all the code in a given category for a given string? --- Mark Volkmann

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Should SUnit tests always have tearDown code?
by Andy Burnett 30 Sep '08

30 Sep '08

I have discovered that my 'dead instances' were actually being created by the TestRunner. I was surprised about that, because, I had assumed, that when I closed the TestRunner window, all the instances that I had created in the setUp code, would be Garbage Collected. Just to be clear my setUp code was doing nothing more complicated than e.g. fspace := Fspace new. When I added tearDown routines to all the tests, e.g. fspace := nil. The problem went away. Is this simply how the TestRunner works, or am I doing something wrong? Cheers AB

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pretty printing
by Mark Volkmann 30 Sep '08

30 Sep '08

Here is how one of my methods was pretty printed. escape: aString "escapes special characters in XML text" | result | result := ''. aString do: [:char | result := result , (char caseOf: { [$<] -> ['<']. [$>] -> ['>']. [$'] -> [''']. [$"] -> ['"']. [$&] -> ['&']} otherwise: [char asString])]. ^ result Yikes! To my beginner eyes, that doesn't look good. What's the deal with the excessive indentation? BTW, comments better ways to do what this code does are welcomed. Could I use collect for this? --- Mark Volkmann

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Level Playing Field image compression side effect
by Rob Rothwell 30 Sep '08

30 Sep '08

Hello... I have noticed that after installing packages (say for example starting with a dev image and loading everything else you need), my image will swell considerably (as noticed both on the disk after saving, and with MemoryUsage). Garbage collection and saving doesn't seem to fix it, but if I re-run the level playing field script, it seems to clean things up. I'm not sure what it's doing, but I thought it worth passing on... However, if you do this a lot (because you mess things up so badly that you have to unload and re-load packages to get things straightened out, which I can confess to on the Beginners List), make sure you do a Smalltalk condenseChanges every now and then, or it will come back to bite you too! Rob

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[Newbies] SqueakMap, Universes, Monticello - Lost in dependencies...
by Markus Fritsche 30 Sep '08

30 Sep '08

Hello squeak.general, it's the time of the year again - I am installing squeak, development enhancements, seaside and persistence frameworks again, since the nights become longer and everything flash-based device I have is already bricked... I don't know how to put this in writing without being a troll! What I observed is that it is very hard to find the latest (working) packages within the tools provided (SqueakMap, Universe browser). For instance, Magma: there are various Packages for Magma out there, called Magma 0.9beta, Magma r40, Magma 1.0, Magma Tester (one of the most popular packages on squeaksource) etc. pp. (Magma is just an example, no insult to the maintainer!). I am confused which packages to load for my yet-to-be-built development image to work properly. Am I doing something terribly wrong? If not, is this just system-immanent or is there a way to (partially, fully) solve this? For instance, I'm thinking of something like the debian popularity contest - when somebody explicitly accepts it, his image configuration of (unchanged) monticello-packages is sent to a server and registered as "up and running, working" or "up and not running, DNU-hell!"? If you think I'm wrong, please reply with "[TROLL] Rant of nobrainer" in the subject line ;-) Kind regards, maf

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Beginners September 2008