Beginners June 2008

beginners@lists.squeakfoundation.org

44 participants
32 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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Downloading the Squeak By Example Sources from the SVN reposotory
by Offray Vladimir Luna Cárdenas 16 Aug '08

16 Aug '08

Hi all, I'm interested in downloading the sources of Squeak By Example Sources from the SVN reposotory. I see that there is a web place to browse the sources, but there is a way to download all them (and the changelog files) to my hard disk? Cheers, Offray

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isKindOf considered questionable
by stan shepherd 21 Jul '08

21 Jul '08

Hi, I'm using isKindOf as part of my unit tests, self should: [(mare maternalStrand at: 100) isKindOf: Gene]; When I run through the code critics, isKindOf is flagged as a 'questionable message'. I can't find any reference to why it should be so; can someone explain please? Thanks, ...Stan -- View this message in context: http://www.nabble.com/isKindOf-considered-questionable-tp18045399p18045399.… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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[ANN] SqueakLightII.7188 is ready
by Edgar J. De Cleene 09 Jul '08

09 Jul '08

I proud announce the alpha version is ready at http://ftp.squeak.org/various_images/SqueakLight/SqueakLightII.7188.zip This comes with a Welcome and Extra Bonus windows and could load some useful stuff. Off course also fun stuff ! This image could be easily updated from previous. As still evaluating which Monticello version should be in, in this saved image I stick to old trusted Ralph version of 3.10. No 7182Monticello-edc.3.sqz into, but any could go to files and load for have Monticello 1.6 beta of Matthew. >From the image you could read any news I put in the swiki http://wiki.squeak.org/squeak/6056 Remember, run but is alpha. And soon I back to #IRC to do Spanish hour and try to awake all. Probability grows roughly circaa 13.00 GMT :=) Edgar

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Reading and writing C structs
by David Finlayson 02 Jul '08

02 Jul '08

An instrument I am working with creates a complicated binary file (memory dumps of C structs). I would like to try reading the file into Squeak for a cool new project. What's the best way to set up and read C-based structs and then, once I'm done, to write them back out again (including endianness, padding bytes and all the other nonsense)? I could use pointers to related classes as well if they are needed/useful for working with primitive types like this. An example would be great. I found that there are some interesting methods in PositionableStream for reading and writing integer types from a binary stream. Is this where I should start? What about floats and doubles? This seems a bit low-level, but I could work with it. I'm a so-so C programmer with experience in Python, but still learning Smalltalk. David

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Install issue with Ubuntu 7.10
by coverify＠yahoo.com 30 Jun '08

30 Jun '08

On a clean edubuntu 7.10 install, I am unable to install squeak. 1. Download deb file from web site but could not install it. -----Output----------- sudo dpkg --install squeakland_3.8-6u_all.deb Selecting previously deselected package squeakland. (Reading database ... 141909 files and directories currently installed.) Unpacking squeakland (from squeakland_3.8-6u_all.deb) ... dpkg: dependency problems prevent configuration of squeakland: squeakland depends on squeak-vm; however: Package squeak-vm is not installed. dpkg: error processing squeakland (--install): dependency problems - leaving unconfigured Errors were encountered while processing: squeakland 2. Tried apt-get ---------Output---------------- sudo apt-get install squeak Reading package lists... Done Building dependency tree Reading state information... Done You might want to run `apt-get -f install' to correct these: The following packages have unmet dependencies: squeak: Depends: squeak-vm but it is not installable Depends: squeak-sources (> 3-1) but it is not going to be installed squeakland: Depends: squeak-vm but it is not installable E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). Tried to install the squeak-vm sudo apt-get install squeak-vm Reading package lists... Done Building dependency tree Reading state information... Done Package squeak-vm is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package squeak-vm has no installation candidate Please advice what I can do. -sanjeev

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Can "Method source with it" be sped up?
by Milan Zimmermann 30 Jun '08

30 Jun '08

Hi, I find "Method source with it" a last, but often used method when looking where a string is used, when forgetting how something is implemented but remembering some key string etc - sort of a brute force "google on source", very useful. It is, however exteremely slow. "grep" a file of a size of the image source takes virtually no time, unlike "Method source with it". I wonder if anyone looked at a way to speed up "Method source with it", or is it a hard thing to do? (Also restricting the searched source to a category would help) Thanks Milan

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My customisation conundrum
by Nick Smith 26 Jun '08

26 Jun '08

I'm a newbie to programming and I'm really enjoying learning Squeak, Seaside. One of the biggest delights for me is discovering just how expressive and powerful Smalltalk is when you can so easily add your own methods to the base classes. By using good intention-revealing selector names, I can write code that is almost self-explanatory.... like prose but not in the language of Smalltalk, in the language of the application/problem domain itself. This is brilliant. Every program you write is it's own DSL. So here's the thing I don't yet understand. If I embrace this way of programming and extend bases classes by adding my own methods, what happens to those methods when I upgrade my image to a newer version of Squeak? Is it that I need to subclass existing base classes before extending them (to better separate my code from the original) or perhaps I need to learn to use Traits; or is there something about Monticello that allows me to migrate my custom methods to newer images? Or maybe perhaps there's something I've missed completely. Thanks. -- View this message in context: http://www.nabble.com/My-customisation-conundrum-tp18131318p18131318.html Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Beginners June 2008