Beginners January 2007

beginners@lists.squeakfoundation.org

71 participants
70 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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newbie stuff
by David Urquhart 15 Feb '07

15 Feb '07

Firstly thanks for the tips I received on how to browse code in Squeak. Secondly a suggestion - when introducing beginners, a reduced list (but effective set) of classes and methods would make learning easier because the structure of the system would be more apparent and there would be less 'noise'. A metaphor would be teaching an alien how to live on earth - you might start by showing them how to live in a village, then once they knew how to go from house to house and shop etc, you might take them to a town where they can learn to use a library and catch the bus. Finally they might take those ideas to the city just like once I know smalltalk and squeak better I will be able to make use of all these classes and methods. So for instance you might only offer me one type of morph, one type of canvas, one openInBlah etc. So maybe this would be a switch in the browser to hide/show classes and methods of secondary/extended/intermediate/progressed kind. Some questions: Does Squeak follow a 3-button mouse approach to human interface? Is there a plan to surrender that initial idea - I think 2-button is becoming an assumed thing these days irrespective of whether you use Windows, Linux, Mac or something else. How would Squeak have to change if it moved to a 2 button model? I'm trying to create a Morphic class that contains a subMorph called internalCircle that is fitted to the bounds of its square parent. Ideally I could then move the parent around and the child would move with it. What's the best way to do this? I want them to be Morphs because I want them to be both visual and encapsulate (different) behaviour of an 'experiment' and a sub component of that experiment. I'm hearing references to 'scripting' in Squeak or the toy thing that's related. What is it and do I need to learn about it if I'm doing Squeak application development? Finally I have accidentally deleted the posting, but someone referred to some incomplete wiki article they had written about what Monticello, Squeakmap etc are and how they work. I just wanted to say it was an excellent piece, very helpful - and if the first 2 pages (up to the terms section) were taken as is they would be very helpful for beginners and so I would move the unfinished part off to some other page. Also perhaps the way the 'rules' are explained could be polished and made more readable (to non-grad CS students) TIA for any responses Dave _________________________________________________________________ Join the millions of Australians using Live Search. Try live.com.au http://ninemsn.com.au/share/redir/adTrack.asp?mode=click&clientID=740&refer…

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MVC freezes
by Another Dave 08 Feb '07

08 Feb '07

Open MVC project, and click into it. Open Workspace, and enter and select a line of code. How do I _do it_? Center button does not work, and ctl-click locks up Squeak. I have a three-button wheel mouse on a generic PC. 3- button mouse mapping is enabled. I'm trying to learn MVC, not Morphic. -- View this message in context: http://www.nabble.com/MVC-freezes-tf3018243.html#a8382425 Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Tweak questions (was: Antialiased Morphs?)
by Sebastian Nozzi 02 Feb '07

02 Feb '07

> This isn't exactly newbie stuff, so I'd rather take this to squeak- > dev. I will then take this questions to squeak-dev and resort to more "newbie" ones... In many places I have read things like Morphic will be replaced by Tweak, and that Tweak is much better and cleaner. This brings me some questions, like: 1) Is this official? Is this in the roadmap of the main Squeak project? (at least it appears to be in the roadmap of Croquet, and this is a very good sign). 2) Should I, as a newbie, forget about learning Morphic and jump straight to Tweak instead? 3) Will Tweak also offer this "embedding" of graphical objects in one another to build up an interface (or "view"). Will it offer this ability to manipulate the graphic elements as Morphs offer? 4) The Tweak site seems to be out of maintenance and the mailing list has very low traffic... are people still working on the project? (honestly asking) What is the state of Tweak? Is it feature complete? Is it half feature complete? (sorry if this info is somewhere else) >There is no Rome list, as far as I know you are the first one > trying to use it for Morphic rendering. It's not that I want it specifically for Morphic rendering... I want Squeak and I want antialiased looks. If you tell me that Tweak is the future, and that in Tweak it would be easier to have antialiased graphics (with the plug-and-play ability of Morphs) I just jump for it... :-) I always wondered why not many people (appearently not at all) are interested in antialiased graphics in Squeak. Even more being that it is so widely used in the Mac world, which all the graphic engine quartz antialiased stuff (I being also a Mac owner). For me, a live development environment with good 21st century graphics would be a clear winner... Sebastian -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

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Dealing with AnObsoleteC3 Class
by Michael Davies 31 Jan '07

31 Jan '07

I'm trying to refactor a piece of code using the refactoring browser, but I've started getting messages telling me that AnObsoleteC3 class does not understand #directlyDefinesMethod. I assume that a changeset I've loaded has removed a class called C3, but that there's still some reference to it hanging around. I guess I need help with two things: - how do I track this thing down? - how do I kill it? I've inspected 'self' from the debugger, and had a poke around some of the pointer tools, but don't really know what I'm doing. Can anyone enlighten me?

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virtual chemistry
by Chuck Smith 31 Jan '07

31 Jan '07

This is great. Let me tell you what I am doing. Some of you may remember for the last 4 years I have been building industrial robots for students to use to create with. Our big project is jet aircrafts and resorts around the world to fly to. We have finished our robot control software for this project. The next step is to take the dirt we stand on and turn it into the parts needed to build the physical jets, resorts etc. I have been searching for a good software chemistry set and have not found one. So just like our robot control software we are going to have to create it. So the spec for the chem set is to teach the students how to take the dirt from below their feet and transfrom it into computers, robots, jet engines etc. I know this sounds impossible but it is not. Many people said we could not build the robot control and we did. So the exciting thing is that we are getting ways to bring many students into the program. We have discovered that schools like to send their students on field trips to space simulations and we are connecting our program to the space simulation camps. It is great that Edgar J. De Cleene has already made a great example of this. I would be very greatful if you could put it in English for us. Thanks, Chuck Smith

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Antialiased Morphs?
by Sebastian Nozzi 31 Jan '07

31 Jan '07

Hello people, as you know I have been playing with Rome a bit. My question is: Can I use RomeCanvas to make a Morph (or, for instance, ALL of them) anti-aliased? Has someone made efforts in that area? (Tweak maybe?) If not, I would be willing to investigate the possibility (antialiased graphics is a must for me). Correct me if I'm wrong, but I would need to see that all the drawing operations of FormCanvas are supported, right? Or how would you proceed? BR, Sebastian P.S. Is this the right place to ask these questions? Or is there a Rome mailing list? -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

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virtual chemistry
by Chuck Smith 31 Jan '07

31 Jan '07

I would like to create a virtual chemistry set. Is this possible in squeak?

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Beginners January 2007