Beginners August 2008

beginners@lists.squeakfoundation.org

60 participants
58 discussions

Re: How do experienced squeakers design applications
by Andy Burnett 21 Aug '08

21 Aug '08

<< I'm a squeak newbie but I work and design every day on ruby / python / delphi projects. Personnaly I sketched out on paper, using UML mainly. Then I take the most quick and easy functionality/class collaboration to develop and I develop using Test Driven Development ( read Dave Astels fantastic book "Test Driven Development: A practical guide" if you want more details on this. I like the idea that tests drive the design ). A tool I like to draw UML diagrams is umlet : http://www.umlet.com/ It's fast, no popups, dialog boxes, saves it's diagrams in plain text files (easy to version), ... and free as in free beer ;) This done (100% test green, 100% coverage and most obvious use cases tested), I sketched out again for next tasks and start all cycle again. In professionnal environment I like to use Scrum iterative development process. I hope this help ! Laurent >> Thanks Laurent, that is very helpful, and I like the umlet application a lot. cheers AB

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SqueakPad
by Sven Schott 20 Aug '08

20 Aug '08

Just an interesting tidbit. I recently installed Squeak on my Pepper Pad 3. First post on http://www.spannermonkey.info/ It's quite nice having a touchpad with Squeak. :) Sven

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How do experienced squeakers design applications?
by Andy Burnett 20 Aug '08

20 Aug '08

I have just started building the model classes for my first app. I sketched out, on paper, what I thought the objects should be, and then started coding. However, very quickly, I found that I was confusing the heck out of myself, trying to make all the parts work together. Clearly, I was not approaching the process the right way at all. So, how do you guys build apps? Do you work out everything on paper first ( with UML diags etc). Or, do you use squeak as you design tool, creating stub classes as you realize you need them. Also, do you try to get one class to pass all it's tests first, before you move on? Basically, I am interested in the rules of thumb that you find helpful. Thanks Andy

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lost 1 objects
by Stephan Janosch 19 Aug '08

19 Aug '08

Hi there! I know, that i lost 1 object. How can i get rid of it? I have a class called "Thing". During development (i do metaprogramming, which work like a charm) i made some mistakes, i guess. Now i wanted to use the nice method "allInstances". This method shows me the following. Thing allInstances an Array(a Thing) So i inspected the "a Thing" and found only 4 Objects pointing an the object an Inspector an ObjectExplorerWrapper an ObjectExplorerWrapper an ObjectExplorerWrapper This is because of my inspectors I guess. Even if i save and reopen my squeak image, i don't lose this _damn_ object. I have no idea, why this instance won't go away. Is there alway one instance of a class in Smalltalk? Squeak VM: Squeak3.10.2-7179-win32.zip Image: SqueakByExample-1.3.image Sorry fo asking this wired stuff. Stephan

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Add refactoring to base squeak
by David Finlayson 19 Aug '08

19 Aug '08

I downloaded the developer image which has re-factoring options in the browser, but I prefer the look and feel of the default squeak. Is there an easy way to get refactoring into the standard squeak browser? -- David Finlayson

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Impact of Squeak installation on OS-X
by Stephen Ng 19 Aug '08

19 Aug '08

Hi! I may be a bit picky with my query. I installed Squeak, Squeakland etc and had a play with them. They are interesting and they need further study on my part. I have one little nitpick! I noticed just recently, that the installation has made a small change to my OS-X Leopard which is annoying. With some of the ICC profile folders stored under the / Library/Printers/EPSON/InkjetPrinter/ICCProfiles/... directory, similarly with Canon profiles, the icons have changed and I cannot open them with a double click because they are now have Squeak as the default application. How do I correct this? There should not be any default application in the first place (I think). Or if there is a default app then it really should be something else (I don't know what though) just not Squeak. I think an application should really be as unobtrusive as possible. Any suggestions on how to fix this will be appreciated. Regards. Stephen Ng

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Windows
by Roger Thedog 18 Aug '08

18 Aug '08

I have looked at a couple of tutorials for Morphic but they are pretty low level. Is there a guide or a framework I can look at for writing windows that you would typically expect to see in a corporate application environment? -- View this message in context: http://www.nabble.com/Windows-tp18974312p18974312.html Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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ideas on how to demo squeak?
by Daniel Lewis 18 Aug '08

18 Aug '08

Hey guys, I'm doing a presentation tommorow to a group of scientists - in the field of human-computer interaction - on the topic of video game creation. I am demoing a couple of application: Yo Yo Games Game Maker, Zillions of Games, Scratch and Squeak. However all I have to show for Squeak right now is running and explaining a game of chess. Does anybody have ideas for cool stuff to show these scientists? Part of my objective is to suggest Squeak as a development platform for our own game creation application. Any suggestions (and explanations of how to actually enact those suggestions) would be much appreciated. Cheers, Daniel

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our own game creation application
by antonio 18 Aug '08

18 Aug '08

Hello Daniel, Did you see this?: http://www.swa.hpi.uni-potsdam.de/projects/olpc/ bye

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How to get a Newline Character
by Felix Dorner 18 Aug '08

18 Aug '08

Hi, I couldn't find anything about how to display special characters. It seems like there's no escape mechanism inside literal strings, such as (in java) "Hello \n World". Do I really have to represent this as: 'hello', String cr, 'world' ? I am aware that I can embed the newline in the with, uhm, a newline like this: 'Hello World'. I find this unsatisfactory, because often I am at a certain indent level and don't want to place such fragments at the beginning of a line. Thanks, Felix

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Beginners August 2008