Beginners December 2006

beginners@lists.squeakfoundation.org

51 participants
45 discussions

In 3.9 7067 how do I get MovieMorph to work?
by Jerome Peace 04 Dec '06

04 Dec '06

I've stumbled across MovieMorph. It seems to have been around since ever. It seems to want frames from other MovieMorphs or SketchMorphs. Asking for a sample instance gets a consolation prize colored rectange that doesn't seem to do anything useful. The are no samples on the class side. How does one get it to do its stuff? Has it ever worked? Has anyone ever used it for something useful? Curious minds want to know. Curious eyes want to see. Yours in curiosity, -- Jerome Peace ____________________________________________________________________________________ Want to start your own business? Learn how on Yahoo! Small Business. http://smallbusiness.yahoo.com/r-index

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All code update servers seem to be unavailable - automatic proxy?
by GeertC 04 Dec '06

04 Dec '06

When trying to "load code updates" I get the error message "All code update servers seem to be unavailable". The network uses an "automatic proxy configuration URL" like "http://###.###.###.###/proxy.pac" I have just installed Squeak and finally managed to get it to look a bit better. Now I want to install Seaside using SqueakMap package loader but I can't seem to get Squeak to find the Internet. How do I set proxy settings in Squeak? I tried to save changes in "http proxy" using the "Preferences browser" but it doesn't seem to save my changes? How do I add seaside to my image? http://www.nabble.com/file/4431/SqueakUpdateServers.png -- View this message in context: http://www.nabble.com/All-code-update-servers-seem-to-be-unavailable---auto… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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creating a browser
by Julian Daly 02 Dec '06

02 Dec '06

Hello How do I go about creating a browser like the System Browser? Thanks, Julian

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Re: >> notation
by Jerome Peace 02 Dec '06

02 Dec '06

[Newbies] >> notation Hi Dave, Your being great. I'm learning a lot from following this thread. Thanks for raising the questions persistantly. (Did this using a fresh 3.9 7067) In a workspace try evaluating (with doit or print it) Object>>#doesNotUnderstand:) inspect . an inspector will pop up. Select all bytecodes and see what a squeak method is made of. To make things in squeak using a browser first get a browser In the work space type Object select t and type cmd-b (I'm on a mac translate what I say for your platform) a system window labeled 'System Browser: Object'. In the second column Object is highlighted. Position the mouse over it and Option-click. ( a menu pops up) select 'more...' and then subclasstemplate. In the big text pane at the bottom you will see:: Object subclass: #NameOfSubclass instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'Kernel-Objects' modify this to: Object subclass: #MyClass instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'DavesStuff' Mouse over what you have written and option-click to get the menu from the menu select 'accept it' You have now defined a class myclass. In the third column select --all-- Now the big text pane at the bottom says: message selector and argument names "comment stating purpose of message" | temporary variable names | statements modify that to: doThis "heres what to do" array := Array new: 3. array at: 1 put: 2. and accept it (see above) first a box comes up asking for your initials type them in and click accept. second a menu comes up asing about what to do with array. select 'declare temp' you have now defined the method MyClass>>doThis. Going back to the workspace type myInstance := MyClass new . myInstance doThis select both lines and option-click from the menu select 'print it' you will see the result highlighted it will say a MyClass. thats because the instance as written does not explicitly return a value. so it is returning the receiver. the receiver is the instance of MyClass which we stored in myInstance. go back to the browser add to the end of the method the line ^array go back to the workspace and do the 'print it' again for the same text selection and the result is: #(2 nil nil) Which show what doThis did. in the workspace again type: (MyClass>>#doThis) inspect select and print it. and you will get the inspector window on the complied version of your method. go back to the browser mouse over the highlighted item in each column from the option-click menu select 'fileout' for each column. And look at your image's home directory to see what you get. Yours in service, -- Jerome Peace >Another Dave dooright101 at yahoo.com >Thu Nov 30 05:32:12 UTC 2006 wrote: > > >(nil asTraitComposition) print it returns a MessageNotUnderstood dialog. > >(Object>>#doesNotUnderstand:) print it returns a System Window(3891), and a >CompiledMethod dialog. > >I'm probably being too literal, or too dense? > ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com

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>> notation
by Another Dave 01 Dec '06

01 Dec '06

I'm having trouble understanding the '>>' in some Smalltalk programs, Such as this, from Smalltalk By Example: MyClass>>doThis array := Array new: 3. array at: 1 put: 2. I can understand that we are creating a new 3-place instance of Array, named array, and putting 2 in the first slot. But I don't understand what MyClass, >>, or doThis are doing. -- View this message in context: http://www.nabble.com/%3E%3E-notation-tf2729086.html#a7612000 Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Beginners December 2006