Beginners April 2008

beginners@lists.squeakfoundation.org

57 participants
43 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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Examples of GUI programs developed in Squeak
by David Finlayson 13 Jun '08

13 Jun '08

I am considering developing an application in Squeak for the analysis and processing of sonar data. The most interesting part of the program is a visual analysis tool that would be used for filtering, mosaicking and GIS-type analysis. Superficially, it would resemble and indeed work a lot like a photo editing application, only instead of working with R,G,B values, each pixel in the image represents a complex matrix of information derived from the sonar system, the vessel GPS and motion sensors, etc. ImageJ for sonars, if you will. A lot of people would code this type of thing in C++ or C#, but I see some value in a dynamic system like Smalltalk that would make it easy to add new complex filters that allow us to do interesting research on sonar analysis. I am willing to give up performance to gain a powerful development environment. The question is: is Squeak the right smalltalk for this kind of thing? Does it have the support for images, matrix algebra, plain old performance for signal processing to build a photo-shop-like application? I guess it has been used for Robot control, which would have similar performance demands. What do you think? Maybe there is some cool stuff that could be done with Morphic to go places a photoshop-type application can't go. Maybe Morphic will suck at this type of thing, I don't know. I am only half way through Squeak By Example, and I am probably biting off more than I can chew, but maybe not? -- David Finlayson, Ph.D. Operational Geologist U.S. Geological Survey Pacific Science Center 400 Natural Bridges Drive Santa Cruz, CA 95060, USA Tel: 831-427-4757, Fax: 831-427-4748, E-mail: dfinlayson(a)usgs.gov

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Namespaces
by Pinku Surana 01 May '08

01 May '08

What is the current state of namespaces in Squeak? Is there a programming convention to prevent name clashes? Thanks.

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Re: [Newbies] Namespaces
by Marcin Tustin 30 Apr '08

30 Apr '08

Thus making suffixes an excellent choice. On Wed, Apr 30, 2008 at 4:26 PM, Bert Freudenberg <bert(a)freudenbergs.de> wrote: > Prefixes are much more common. Actually, I have never seen anybody use > suffixes. > > - Bert - > > > On 30.04.2008, at 17:18, Miguel Cobá wrote: > > For the time being, just add a suffix to all your classes, group them in > > packages and pray anybody use the same sufixes/package names > > :) > > > > On Wed, Apr 30, 2008 at 6:53 AM, Pinku Surana <suranap(a)gmail.com> wrote: > > What is the current state of namespaces in Squeak? Is there a > > programming convention to prevent name clashes? > > > > Thanks. > > > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners >

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managing windows in squeak
by peter h meadows 29 Apr '08

29 Apr '08

Hi. I'm new to smalltalk and squeak. I'd like to know how experienced users manage the windows when programming with squeak. I often have a lot of windows open and struggle to find the right one. Are there keyboard shortcuts for switching between windows? Is it possible to program without using the mouse at all? Does squeak have 'virtual desktops' or something like that?

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Quinto Game Example Code Not Working
by Dr. Zephy 29 Apr '08

29 Apr '08

I'm working through the Squeak by Example book and ran into a snag. The code on page 33 for the Quinto game is returning an error message. I have the SBECell selected and "-- all --" is highlighted in the right pane, just like in the book, but it responds with the message "Unknown variable: initialize please correct or cancel: / declare temp / declare instance / cancel". So I guess it doesn't recognize "initialize" and thinks I'm trying to create a variable? According to the book it should be recognized. Here's the code: initialize super initialize. self label: ''. self borderWidth: 2. bounds := 0@0 corner: 16@16. offColor := Color paleYellow. onColor := Color paleBlue darker. self useSquareCorners. self turnOff I even downloaded the code for the book from Squeaksource and pasted it in and it does the same thing. Any help would be appreciated. Thanks, - Eric (Dr. Zephy)

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[ANN] Learn Morphic and have fun
by Edgar J. De Cleene 25 Apr '08

25 Apr '08

Folks: As I said in my failed campaign for have a place in the Board, could dedicate a 3 hours a day as average to Squeak. I intend to be on #IRC from roughly 7:30 to 10:30 Argentina time (10:30 to 13:30 GMT) I pick as starting project to develop with all wishing to join this http://wiki.squeak.org/squeak/6047. To Jerome Peace in case you read this, I miss your mails and hope you don't mind I take some of you. The project is to be developed in Morphic (no Etoys as soon they go out of basic image) in a official http://ftp.squeak.org/3.10/ Squeak3.10-7159-basic.zip Sources is same as 3.9, VM of 3.9 should work. Collateral I test on FunSqueak and maybe in others versions of Squeak. I just do very rough project and save on swiki, so I hope questions and feedback of any wishing learn (or teach) and have fun. Read you on #irc ! Edgar

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Beginners April 2008