Squeak-dev November 2004

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Re: Vm Crashes
by tmorrow＠spymac.com 02 Nov '04

02 Nov '04

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problem with follow path
by Ambika Seenivasagam 02 Nov '04

02 Nov '04

Hello everyone, I am a new squeak user. I am right now creating a science model in which the earth revolves around the sun in a orbit and moon revolves around the earth in another orbit. I am using the follow path option. The problem I am facing is that I am not able to make both moon and earth to revolve in thier respective orbits. The follow path hinders the other scripts from working. How to make this work? Is there any other option other than Follow Path. Your help will be much appreciated. Thanks in advance ambika

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wonderland and random clips
by Malte Steiner 02 Nov '04

02 Nov '04

Hello, I work for a project which includes 3D Grafics. Wonderland seems to be suitable for that but on OSX and Linux, Windows I didn't checked so far, entitys from importet vrml objects got clipped randomly, they dissapear on some frames. It only happens when hardwareacceleration is off but on these platforms it is unusable by introdusing a colorshift on the textures and unstable behaviour of the wonderlandwindow. All happens on Squeak 3.7. Does Squeak clips stuff away when it feels it would cost to much CPU? Any advice would be great. With friendly greetings, Malte -- Malte Steiner media art + development -www.block4.com- blog 4, also available as rss feed: http://java.block4.com/blog4/ next events: 26.november workshop 3d modelling for max/msp jitter Musikhochschule Hamburg, Germany 26.november concert Elektronengehirn hoerbar Hamburg, Germany

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Re: smacc documentation
by Chris Wright 02 Nov '04

02 Nov '04

> >You need to install the Smacc-Development package from SqueakMap. >This included a HOWTO. > > Marcus Doh :( thanks for you patience!! chris _________________________________________________________________ SEEK: Now with over 50,000 dream jobs! Click here: http://ninemsn.seek.com.au?hotmail

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[Newbie] TextMorph
by Simon Bates 02 Nov '04

02 Nov '04

Hi everyone, I have a question about TextMorphs that I am hoping someone might be able to help me with. Would anyone be able to tell me please if it is possible to make an instance of TextMorph without the ability to change font family, size, style or colour via the mouse or keyboard? I'd like to have editable text but don't want it to be possible to control appearance by direct manipulation--just text editing. Is this possible with TextMorph or would I need to subclass or use a class other than TextMorph? (if I need to subclass any pointers on what I would need to change would be greatly appreciated). Thank you all very much. Best wishes, Simon

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Unit tests failing in clean image
by Rob Lally 02 Nov '04

02 Nov '04

Hi, I just downloaded, unpacked and ran Squeak 3.7 for windows. I popped open the SUnit test runner and ran the tests. A bunch of them failed and some required me to manually intervene. Is this normal, or have I done something wrong? If it is normal .... why? Is there anything I can do to fix it; other than just deleting all of the tests - which seems wrong. I'm a proponent of TDD and I can't live with a system where tests fail every time I run them. R.

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Metaclass JVM programming
by Claus Spitzer 02 Nov '04

02 Nov '04

Greetings! I am implementing a Java VM in Squeak, and am trying to figure out how to represent Java concepts in Smalltalk. Here's the idea I had so far: 1) Create Squeak classes for everything that needs to be represented (e.g. JavaClass, JavaInterface, &c.). 2) Instances fo these classes would be Java classes. So if Java had class Foo, then Foo would be an instance of the JavaClass class. These would have to be, I assume, singletons. 3) Instances of instances... ? Now this is where I thought of metaclasses. I recall that in the first Smalltalk paper I read it was mentioned that all Smalltalk classes are instances of their respective metaclass, and that metaclasses are in turn instances of metaclass-class. So I was hoping to change 1) to be metaclasses... then 2) would be classes, and instances of these would be, well, instances. Is this feasible? Or would it be possible to make the instances of the classes in 1) behave like classes in turn (that is, make instances of the instances in 2) )? In short, I'm thinking of 2 solutions to the problem presented above: - To make a metaclasses for the Java concepts. While this makes it easier for me an those I work with to wrap our heads around, it seems like a waste (Since in that case the Java classes would each be represented by a Smalltalk class). - To have instances of a class behave like classes themselves. This feels 'more right', but I'm afraid that I'm not experienced enough with Squeak to know how this is to be done (and if it is even possible). Could anyone give me some hints regarding this (perhaps direct me to the right paper/site covering these topics?). Regards.... -CWS

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Popup window with multiple checkboxes
by Ralph Boland 02 Nov '04

02 Nov '04

I need to implement a popup window in which to turn on a multitude of switches. The input to the popup window would be an array of associations in which the key is a boolean and the value is a string. The popup winow would display for each assocation: 1) A checkbox. The checkbox would initially be on or off depending on the value of the key field of the association. 2) The string which is the value field of the association. Once the popup window is displayed on the screen the user can set on or off each checkbox as he sees fit. The user then clicks on an accept button to accept his changes. The popup window then closes and the same array of associations are returned to the popup window caller but with the key fields changed according to the checkboxes selected by the user. Has anybody implemented anything remotely similar to this who would be willing to send me their code. I will modify the code to fit my needs. I'll post my modified version of the code here if anybody wants it but I warn you, I know little about GUIs and probably won't do a pretty job. I need this code for a regular expression to finite state machine translater which I am writing and which I will release to the public domain or under GPL or something like that. Thanks. Ralph Boland P.S. If anybody is interested in cleaning up the gui for this translater before I release it please speak up. ~ ~ ~ ~ ~ ~ __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail

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Harvesting Party Friday November 5th 20:00 GMT
by Ken Causey 02 Nov '04

02 Nov '04

Just a reminder that the next Harvesting Party will take place between 20:00 (8 PM) GMT Friday November 5th and 00:00 (Midnight) GMT Saturday November 6th, 2004. As usual we will meet in #squeak on irc.freenode.net. More information about the #squeak IRC channel can be found at http://people.squeakfoundation.org/article/7.html Information about the Harvesting Party idea can be found at http://people.squeakfoundation.org/article/29.html If you have the time please attend and work toward the future of Squeak. The next seven parties are scheduled for 00:00 (12:00 AM) GMT Wednesday November 10, 2004 04:00 (04:00 AM) GMT Sunday November 14, 2004 08:00 (08:00 AM) GMT Thursday November 18, 2004 12:00 (12:00 PM) GMT Monday November 22, 2004 16:00 (04:00 PM) GMT Friday November 26, 2004 20:00 (08:00 PM) GMT Tuesday November 30, 2004 00:00 (12:00 AM) GMT Sunday December 05, 2004

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Bar graph
by Thierry Reignier 01 Nov '04

01 Nov '04

Hi, I tried to acess that package but the server is not responding anymore. http://map1.squeakfoundation.org/sm/package/1638a794-b413-4517-8bfb- 38f664368ffe/autoversion/1). Does someone out there has a copy of it? I wanted to try and see that morph. Thanks i advance Thierry

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