Re: [Newbies] E-Toys and Morphic for simple point plotting exercise?
On Nov 14, 2006, at 15:54 , Daniel Green wrote: I'd like to challenge some students (9 years old to 14 years old) to use Squeak to draw a Sierpenski Gasket (http://en.wikipedia.org/ wiki/Serpinski_gasket) as an experiment with random numbers. I'm pretty sure Markus Gaelli did that once, surely he will chime in ... Things I'd like to improve: - a shorter E-Toys version See attached PNG for my version - four lines of tiles ;-) - a morphic version other than just 'view source' of E-Toys tiles version Hmm, there is a directly drawn version at http://minnow.cc.gatech.edu/squeak/1677 - be able to subroutine or parameter-ize an E-Toys script with a point or two numbers instead just one parameter and/or repeating code Not in this version of etoys. - find a suitable PlotMorph or other class which can be used for the E-Toys version rather than just scribble with penDown=true or create millions of 1 pixel LineMorphs If you make your pen object small, just use the stamp tile. - Bert - ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Re: [Newbies] Bugging out of Squeak
Le Dimanche 12 Novembre 2006 13:00, Michael Haupt a écrit : On 11/12/06, Another Dave [EMAIL PROTECTED] wrote: Let's say you're totally lost, and want to exit Squeak without saving anything from the mess you've just made. Are you absolutely sure you haven't accidentally, in the last second, hit one of the wrong pixels, i.e., one belonging to yes? There's a UI loop in there which is nevertheless not very graceful I think. The first option in this sequence is the user clicking the choice: 'Quit without saving the image' (or somesuch, I do not want to change language just to get the right string that is displayed) And then, very surprisingly, after the user has made this choice, another choice pops up that asks: 'Save image ? yes/no/cancel (idem). I find this to be squarly not straight, so to speak. It is confusing for any user to be asked about saving the image when the user has already expressed the will of NOT saving the image. Either remove this option in the first place, or remove the additional choice of saving the image. My two cents. Cheers, Al ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
[Newbies] Re: Bugging out of Squeak
Hi lanas, there are 4 possibilities which come to my mind: 1 - you're using an image which we don't know, alternately: I can see a message somiliar to your's only if on windows and hit alt-f4. 2 - you're indeed on windows doing alt-f4 then there is a bug 3 - the message says Save changes before quitting? then this is so because you selected plain Quit from the World menu. In case you did the latter, perhaps your mouse thinks it clicks 1-2 pixels off and the menu is not what you expected? 4 - I cannot reproduce the message you cite 'Quit without saving the image', can you tell us precisely where and what you click and what kind of widget is then talking to you. /Klaus On Wed, 15 Nov 2006 13:32:41 +0100, lanas wrote: Le Dimanche 12 Novembre 2006 13:00, Michael Haupt a écrit : On 11/12/06, Another Dave [EMAIL PROTECTED] wrote: Let's say you're totally lost, and want to exit Squeak without saving anything from the mess you've just made. Are you absolutely sure you haven't accidentally, in the last second, hit one of the wrong pixels, i.e., one belonging to yes? There's a UI loop in there which is nevertheless not very graceful I think. The first option in this sequence is the user clicking the choice: 'Quit without saving the image' (or somesuch, I do not want to change language just to get the right string that is displayed) And then, very surprisingly, after the user has made this choice, another choice pops up that asks: 'Save image ? yes/no/cancel (idem). I find this to be squarly not straight, so to speak. It is confusing for any user to be asked about saving the image when the user has already expressed the will of NOT saving the image. Either remove this option in the first place, or remove the additional choice of saving the image. My two cents. Cheers, Al ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Re: [Newbies] How to squeeze Multiple Inheritance into Squeak ?
Hi Warakorn, maybe it is a little bit late now, for a nice answer, but I will do it anyway. You want multiple inheritance? Why? Usually multiple inheritance is not necessary at all. Objects communicate via messages, and we have only objects in Squeak! In my mind the only idea behind having inheritance is, you don't want to code the same things again and again. So you can create generic objects that implement the functionalities, several Objects might use. I think that's clear. I red that your object should understand all the messages a human-object understands and a ninja-object understands, ok, thats fine. Now I have 2 suggestions: 1. Isn't a ninja object a kind of human object, (if you use your common sense, don't think only in terms of your program, please). So you could inherit the ninja class (object) from the human class. Your new object would be inherited from this ninja class, which is a human class and would understand all messages, both do understand. But ok, this structure is static. 2. You could just teach your object to understand the same messages like a ninja class, if you would just implement this messages in your object. But again, this is a static structure. And here is a third one, that maybe you had in mind. I provides a dynamic structure. Imagine you would bundle the messages that ninja objects understand, and you could add this bundle to your object, which is a human inheritance. I think this is done using traits. I know that there are traits in squeak or at least some people work on this, but I don't know how you use this things. There are other people that might be able to answer this how question. I am more on asking the what question, what exactly do you want to do (the purpose, not the means)? Best regards, Patty Warakorn Paphrawat schrieb: Squeak does not support multiple inheritance. Sadly enough the possibility of Multiple Inheritance in Squeak would greatly benefit me in my current Squeak project ? What would you suggest to squeeze some sort of Multiple Inheritance into Squeak ? - C-like Macros / or some kind of automation - Traits - some other possibilities What is your experience ? The idea to design my system better and introduce more abstraction is valid, but I still would like to stick Multiple Inheritance. Want to start your own business? Learn how on Yahoo! Small Business. http://us.rd.yahoo.com/evt=41244/*http://smallbusiness.yahoo.com/r-index ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Re: [Newbies] Re: Bugging out of Squeak
4 - I cannot reproduce the message you cite 'Quit without saving the image', can you tell us precisely where and what you click and what kind of widget is then talking to you. In the final 3.9 image, at the bottom of the world menu, there is a Save and quit option followed by a Quit option. The quit option does what he says, it asks if you want to save before you quit, quit without saving, or cancel. When you see save and quit followed by quit, it is confusing to have quit ask you if you want to save. Squeak has been this way for a long time. -Ralph ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Re: [Newbies] Re: Bugging out of Squeak
Ralph Johnson wrote: In the final 3.9 image, at the bottom of the world menu, there is a Save and quit option followed by a Quit option. The quit option does what he says, it asks if you want to save before you quit, quit without saving, or cancel. When you see save and quit followed by quit, it is confusing to have quit ask you if you want to save. Squeak has been this way for a long time. -Ralph Right. I was using this as a sort of clear all, and restart from the beginning command, to clean my newbie errors out the system, and I did choose No to Save changes before quitting. That's why I was frustrated to find the image still there when I reloaded Squeak. This happened several times, so I made the post. Today, I can't duplicate the problem. Was it my system? Was it me? I don't know. I will watch for it happening again, and if it does I'll try to gather as much information as I can before posting. -- View this message in context: http://www.nabble.com/Bugging-out-of-Squeak-tf2617640.html#a7360612 Sent from the Squeak - Beginners mailing list archive at Nabble.com. ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
[Newbies] Re: Bugging out of Squeak
IC. But then he is correct, the text *must* include three dots Quit ... because there is another step in that particular dialog. Good find. Release-team, please add the three dots to the world menu, thank you. /Klaus On Wed, 15 Nov 2006 15:21:19 +0100, Ralph Johnson wrote: 4 - I cannot reproduce the message you cite 'Quit without saving the image', can you tell us precisely where and what you click and what kind of widget is then talking to you. In the final 3.9 image, at the bottom of the world menu, there is a Save and quit option followed by a Quit option. The quit option does what he says, it asks if you want to save before you quit, quit without saving, or cancel. When you see save and quit followed by quit, it is confusing to have quit ask you if you want to save. Squeak has been this way for a long time. -Ralph ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Re[2]: [Newbies] Re: Bugging out of Squeak
Hello Dave, AD Right. I was using this as a sort of clear all, and restart from the AD beginning command, to clean my newbie errors out the system, and I did because I still have this problem (I have it in other programs too) I close squeak by closing the squeak window. This only can abort quitting but I have no chance to save the image when I want to quit. This is on Win but I'm sure it's valid for Linux and Mac too. regards, Herbertmailto:[EMAIL PROTECTED] ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Re: [Newbies] Re: Bugging out of Squeak
On Wed, 15 Nov 2006 13:47:27 +0100 Klaus D. Witzel [EMAIL PROTECTED] wrote: Hallo Klaus, there are 4 possibilities which come to my mind: 1 2 3 None of the above. 4 - I cannot reproduce the message you cite 'Quit without saving the image', can you tell us precisely where and what you click and what kind of widget is then talking to you. Sehr einfach. So geht's: On the desktop menu the last entry says: Quitter sans enregistrer l'image And when you click on that, it asks you if you want to save the image. Try it, you'll see the same. I've tried with other language settings, and it seens French is quite unique in that matter ! Could someone change that to only Quitter and add the three dots like it was suggested ? OR... Make it really quit without saving the image since that's the option right above (I think that'd be the bäst) BTW, Polish sieht ganz wie Deutsch aus ! ;-) And Czech looks a lot like English ! ;-) Alles gut, Al ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
