Beginners September 2007

beginners@lists.squeakfoundation.org

55 participants
38 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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One click setup for 3.9 [win]
by Xinyu Liu 25 Jan '08

25 Jan '08

Hi people, I create a one click setup for newbies. It will do the following things after run: 1. download SqueakVM from ftp.squeak.org 2. download 3.9 images, soruces ftp.squeak.org 3. extract all things 4. create shortcut in desktop and program menu. I found the download process may cost some time, because there is only one download session. The installer can work only in Windows. It can be get from: http://liuxinyu95.googlepages.com/squeak3.9_win_installer.exe I created it with NullSoft installation system scripts. I shared the script code here: http://liuxinyu95.googlepages.com/squeak3.9_win_install.nsi You can change it when 3.9 package updates. Have fun with 3.9! Best regards. Yours, Liu

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Added Instance Variables and Methods are not shown in System Browser
by Warakorn Paphrawat 18 Nov '07

18 Nov '07

I developed a little Meta-Programming application, which adds methods to the MethodDictionary of a class and adds instance variables + getters/setters. However, after running this application the changes are not reflected in the System Browser. All new instance variables and new methods are not shown there. On the other side I can run a little test application, which creates a new instance of class (to which I added some methods and variables), which in turn uses some of the added methods and instance variables through getters/setters without any errors. Is there any trick to make these added methods and instance variables visible ? Again, the new methods are correctly integrated into the MethodDictionary with selectors and CompiledMethods according to "aClass inspect". Is there another way to check whether the new methods and new instance are really integrated into a new class? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Quinto game in SBE
by Steve Moffitt 04 Oct '07

04 Oct '07

Hi Bill -- The game works fine in my image. 1) The first thing I would look at is when the debugger comes up I would select the second line from the top of the list that is shown in the top pane of the debugger. When you do that the debugger opens and will have the offending message highlighted. I would select the object that is getting that message and cmd-i ( or ctl-i ) which brings up an inspector which will show you if you really have aSBECell or not. If you are not getting the right object there is probably something in the code that you did not copy correctly. Did you type the instructions in ? 2) same steps as one. By the way the code for the examples can be downloaded from squeaksource.com Steve

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Save project thumbnail as image
by Juliano Bittencourt 30 Sep '07

30 Sep '07

Hi everybody, I'm interested in create a script that takes an .pr and outputs a project thumbnail as a png image. I searched the code that loads the project to etoys, but was unable to find were it generates the project thumbnails that is showed up after loading. Any hints? Best, Juliano

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Semaphore problems
by Jason Shoemaker 30 Sep '07

30 Sep '07

Hello, I'm trying to get this code run, but I'm not getting the results I expect. I running on a 3.10beta image. semA := Semaphore new. semB := Semaphore new. [Transcript show: 'b1'; cr. semB signal. semA wait. Transcript show: 'b2'; cr.] fork. [Transcript show: 'a1'; cr. semA signal. semB wait. Transcript show: 'a2'; cr.] fork. results: b1 a2 That's all. If I hit cmd-doIt rapidly I do begin to see a1 and b2 as well. The process browser doesn't seem to show anything waiting. I'm on a amd64, in a 32bit chroot. I'm in Gentoo Linux, so the VM was built from source. Thanks for any clues, JTS

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TextAttributes in OBDefinitions
by Jerome Peace 27 Sep '07

27 Sep '07

[Newbies] TextAttributes in OBDefinitions Hi Matthew, Hi Robert. for step 3. try self doOnlyOnce: [ self halt ] . which can be primed by evaluating nil rearmOneShot That allows you to get the debugger you want and then have the method behave normally. *** >Matthew Fulmer tapplek at gmail.com >Thu Sep 27 00:45:25 UTC 2007 > >On Thu, Sep 27, 2007 at 02:13:17AM +0200, Robert Krahn wrote: >> Hello Squeakers, >> >> I am trying to add TextAttributes to the text which is shown in the >> definition panel of OBBrowsers. My attempt to add TextAttributes to >> the results of #text methods of OBNodes had no effect. >> >> E.g. I changed OBUPackageVersionNode>>text to: >> >> ^ package longDescription asText allBold >> >> and expected to read the details of package versions in bold text. >> But nothing changed. > >You are probably doing this correctly, but something higher up >is turning it into a String. The way I debug this is: > >1. Open an instance of a window that makes the call >2. Minimize it >3. Place a self halt in the method you want to trace. >4. Unminimize the window > >If you put a halt in while the window is active, you are likely >to get an endless stream of debuggers until you minimize the >window again *** - ____________________________________________________________________________________ Don't let your dream ride pass you by. Make it a reality with Yahoo! Autos. http://autos.yahoo.com/index.html

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TextAttributes in OBDefinitions
by Robert Krahn 27 Sep '07

27 Sep '07

Hello Squeakers, I am trying to add TextAttributes to the text which is shown in the definition panel of OBBrowsers. My attempt to add TextAttributes to the results of #text methods of OBNodes had no effect. E.g. I changed OBUPackageVersionNode>>text to: ^ package longDescription asText allBold and expected to read the details of package versions in bold text. But nothing changed. Is there a way to do this? Best regards, Robert

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smalltalk analogy of a scheme expression
by Mark Smithfield 25 Sep '07

25 Sep '07

In scheme, (+ 3 4) is to '(+ 3 4) As, (In smalltalk) 3 + 4 is to [+ 3 4] ??? correct? bees in the bonnet? what do you say? ??? m. ____________________________________________________________________________________ Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545469

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Traits
by Nick Ager 25 Sep '07

25 Sep '07

Armed with new knowledge of Traits gained from the excellent "Squeak By Example" I tried: Smalltalk allClasses select: [:each | each hasTraitComposition] which gave: an OrderedCollection(ActionSequence BalloonBezierSimulation BalloonEngine BalloonEngineConstants BasicRequestor Behavior BrowserProvider ....WorldMenuProvider XMLTokenizer ZipConstants ZipFileConstants) However browsing to a random class say "ActionSquence", doesn't show any evidence of Trait composition. Is this a problem with the current browser? Also is there a way to browse a Trait say TPureBehavior My image is based on: sq3.9-7067web07.08.1 Thanks Nick -- View this message in context: http://www.nabble.com/Traits-tf4512519.html#a12870783 Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Beginners September 2007