Squeak-dev December 2001

squeak-dev@lists.squeakfoundation.org

137 participants
354 discussions

subclassing Metaclass
by Avi Bryant 22 Dec '01

22 Dec '01

Is there any generally accepted technique for subclassing Metaclass? Or rather, for getting a particular class to use a particular subclass of Metaclass instead of Metaclass itself? What I'm trying to do is trap addSelector:withMethod: on Metaclass so that I'm notified of changes to class-side methods - I can just add it to Metaclass for now but obviously it would be preferable to localize it to a subclass. Any words of wisdom would be much appreciated... avi

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Flash player not working
by Gary McGovern 22 Dec '01

22 Dec '01

Hello, In Squeak 2.7 I've tried running a Flash file and it doesn't fully work. It's very simple, orange background with 'Hello' in white text fading in then out followed by 'Bye' in yellow text sliding in then exploding. The 'Bye' works but not the 'Hello'. Why ? Has it been fixed in later Squeaks ? The file wasn't made with Flash but is an export from Swish (mag freebie) if that makes a difference. Thanks! Gary

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Re: [GOODIE] TestMaker
by danielv＠netvision.net.il 22 Dec '01

22 Dec '01

Cool, glad you like it. A couple of things that might help - Your tests classes need to be subclasses of TestCase - that's how SUnit works. #deny: for example, is defined by TestCase, and you need to inherit it for test method to work. TestCase also defines #should:, which accepts a block. > testMPEGPlayerPlayFileChimpMpg > self deny: ([| foo | > foo _ MPEGPlayer playFile: 'chimp.mpg'. > foo playStream: 0] value) = a MPEGPlayer > > A second syntax error is caused by your "= a MPEGPlayer". I'm not sure how > that is supposed to work ? Yes, that's too complicated for this code. The hack assumes that whatever gets returned by the expression, is wrong. It put the result's printString on the right side of the comparison, which works for some objects, but definitely not all. To get a more sophisticated test, you need to specify what does your snippet does, and what's wrong with it, and make the test check for that. If you make a subclass of TestCase, its test* methods will appear in TestRunner. Daniel Simon Michael <simon(a)joyful.com> wrote: > Hi Daniel, > > great idea I think. I tried it on the last thing which failed for me, an > attempt to play an mpeg: > > | foo | > foo _ MPEGPlayer playFile: 'chimp.mpg'. > foo playStream: 0. > > I got over one syntax error by wrapping this in "[...] value", so the test > method looks like: > > testMPEGPlayerPlayFileChimpMpg > self deny: ([| foo | > foo _ MPEGPlayer playFile: 'chimp.mpg'. > foo playStream: 0] value) = a MPEGPlayer > > A second syntax error is caused by your "= a MPEGPlayer". I'm not sure how > that is supposed to work ? > > I wasn't sure what class to add this to so I just said MPEGPlayer. > Perhaps this is why the new test didn't show up in a TestRunner. > > Best regards, > -Simon

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Re: TextMorph code - help!
by Bob Arning 22 Dec '01

22 Dec '01

On Fri, 21 Dec 2001 03:13:08 -0000 "Gary McGovern" <garywork(a)lineone.net> wrote: >When I code a TextMorph to openInWorld with ComicBold 24, it is always wrapped. What message is used so that it displays in a straight line. I can't find that message. Gary, It depends on when and how you set the font. The example below works, but it didn't until I added the line noted. Before that it was composing the line (and thus the size of the TextMorph) based on the default font rather than ComicBold. TextMorph new contents: 'this is something longer than normal'; fontName: #ComicBold size: 24; releaseCachedState; "<----added" openInWorld this also works: TextMorph new contents: '?'; fontName: #ComicBold size: 24; contents: 'this is something longer than normal'; openInWorld Cheers, Bob

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Direct manipulation to browser
by Gary McGovern 21 Dec '01

21 Dec '01

Hello, Is it possible to make a BookMorph by direct manipulation and then put it in the browser so that it becomes a class with all submorphs becoming instance variables of the class and retaining their initial state in an initialize method ? Is there a way to do it ? If so, can it be done by one click ? If not how can it be done ? Thanks! Gary

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Re: Newbie questions about managing code
by danielv＠netvision.net.il 21 Dec '01

21 Dec '01

These are my two strange ways of managing code I care about - * Send it to the list. Go to the Chage List, and instead of file out, do "mail to the list". It's an interesting storage medium - it's distributed, has multiple access paths (all messages with subject prefixed [ENH], [Goodie] or [Fix] are picked up and stored on a special page, for example), is backed up, searchable, and sometimes people benefit by it. Of course this requires at least some potential usefulness for whatever it is... * I maintain the Squeak port of the Refactoring Browser, which is made of several packages, and lots of code that should be accessible for people to download. SCAN is a very nice repository I use by Hans-Martin Mosner. You can start by browsing - http://squeak.heeg.de:8080/Squeak/Packages/Refactoring%20Browser/Squeak% 20RB It has a nice Squeak client too. You can keep some/all of your code private to your machine, or post it to the server, as you wish. I like it much. Daniel Chris Muller <afunkyobject(a)yahoo.com> wrote: > > --Boundary_(ID_JkDIDEoWPYmxThDgYh5gzA) > Content-type: text/plain; charset=us-ascii > Content-transfer-encoding: 7BIT > > > I am a fascinated Squeak-newbie bursting with questions. I have lots of Smalltalk experience, but in other dialects (VA & VW). I'm finally ready for Squeak, but am still trying to get familiarized with my new environment. I have a couple of questions. > > - What are some best-practices for maintaining my code in a safe-as-ENVY way. If I'm writing new code every day that I do not want to lose, is it reliable enough to simply back up my changes file every day? Or do I need to file-out all of my ChangeSets for a more reliable recovery should the need arise. I imagined there would be some sort of automatic recovery script that would re-apply all changes in the changes file after the timestamp of the image save, similar to the "Make Image Consistent" command in an Envy-based environment. I noticed a couple of interesting methods: >

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Re: Re: JPEG issues
by jmvuletich＠uolsinectis.com.ar 21 Dec '01

21 Dec '01

Hi Bijan > ... > D'oh! > > Can I kill myself now? > You did't listen. I asked to inspect: (HTTPSocket httpGet:'http://www.movietickets.com/photos/00727201.jpg') contents It's an easy to read String... Anyway, please don't kill yourself! > Hmm. I seem to be misled, at least partially, by the fact that if I save > the graphic to disk from a web browser, it still doesn't want to open up > in Squeak. Thus, it *may* (since my tract record the past couple of days > is, well, *lousy*, I wish to be cautious) be both an HTTP and a JEPG > issue. > > Hmm. Yes. It is both. > > As Duane Maxwell, it's a progressive JEPG and raw Squeak can't handle it. Anyway, JPEGReadWriter2 CAN read progressive JPEGs. And thanks for the fix! Cheers, Juan Manuel Vuletich

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Re: [ENH] CelesteAddressBook
by danielv＠netvision.net.il 21 Dec '01

21 Dec '01

Giorgi, I tried to file this in and failed. My first two problems - The first two lines in the file in open the address book and it's help - but those aren't yet filed in! After fixing that, and adding a $! to start the filein correctly, it loaded just fine. Looks very nice, and it could be quite useful to have an address list that's automatically compiled. It would be VERY cool if it could recognize variants on the same contact (Same name, various email addresses and same address, various names) and let the user deal with them as a unit (join those, use that name, use that address, find the contact by any of them). Also, I don't know about you, but I have many, many addresses, many of people that simply got the same spam as me (%#$!@!!!). Some means for filtering or prioritizing them would be great. People I have mailed or who have mailed me, then people on my common lists, then others, or maybe sorted by the count of times found, or something along those lines would also be great. It seems you already have each contacts frequency, maybe you were thinking along the same lines? This looks like the start of something pretty cool... Daniel Giovanni Giorgi <jj(a)objectsroot.com> wrote: > > --Boundary_(ID_l5qcZZZImiIyaWQgUxIK6g) > Content-type: TEXT/PLAIN > Content-transfer-encoding: 7BIT > > from preamble: > > "Change Set: CelesteAddressBook > Date: 16 December 2001 > Author: Giovanni Giorgi > > This is a first shot version. I have fixed some annoing bug of the alpha

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RE: [rant] owner of squeak
by G.J.Tielemans＠dinkel.utwente.nl 21 Dec '01

21 Dec '01

Sorry guys, Let me tell you a story. The world is ruled by managers. They have to take decisions... and fast. First study the details? Costs to much time.. Knowing the details? It blocks strong decisions.. So they decide and avoid risks: a wrong decision means another job... Suppose you go to your boss and tell him all about Linux and Staroffice: - free stuff, so no one is earning money on that stuff? - giving away for free?!? you are kidding... - then there is no money for supporting the product. - people supporting it for free?!? you must be kidding again. - Must be a group of amateurs, not earning money, squeak!!! - Ok, lets suppose it can be free, what then about continuity? .... Of course we then have to admit that in the Squeak community we only do what we like, You cannot build a business on our fun: - Problems with Squeak under Windows? buy a Mac! - Browser problems with the Squeak plugin? change the browser(version)! If Someone pays you a lot, He will expect service or go to court... So at the end, we have to admit that we feed that prejudice of your boss and other managers. (Although I have to admit that in other communities like SourceForce the community lokks much more proficient Apache, PHP, MySQL... and so many packages, right-out-the-box (PHPDEV for example)) Another point is that normal people have habits and want to keep these: If you offer a product like StarOffice, that is so different in look and feel, then you have to invest a lot of extra time before you can go back to your normal work... And last but not least: You do not need the best product as a businessman, you just need the best advertisement and other tricks to grab the market. > -----Original Message----- > From: Stephen Pair [mailto:spair@advantive.com] > Sent: vrijdag 21 december 2001 15:08 > To: squeak-dev(a)lists.squeakfoundation.org > Subject: RE: [rant] owner of squeak > > > Richard A. O'Keefe wrote: > > I'm rather upset that our government spent 10 million dollars > > buying Windows XP and related software for schools when (a) a > > lot of schools here have Macintoshes, and (b) Linux and > > StarOffice are available free, gratis, and for nothing. > > Doubtless someone who wants to boycott Sun would be happy > > that the "owners" of StarOffice "lost a sale", but they > > wouldn't have got any money for it, and haven't really "lost" > > a cent. (StarOffice is now OpenOffice.) > > That really is an unfortunate waste of money. I fail to see > why anyone > would spend any money on an operating system these days. Perhaps your > government officials were seeking a few perks from the executives in > Redmond? Just a guess. > > - Stephen > > >

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[Bug] SortedCollection addLast works
by Stephane Ducasse 21 Dec '01

21 Dec '01

hi #(3 2 4) asSortedCollection addLast: 1 ; yourself -> a SortedCollection(2 3 4 1) Quite funny indeed!!!! SortedCollection addLast should raise an error. I tried to fix but the borwser was not working anymore :(((((( really cool to add something into a SortedCollection without using the right protocol I will try to fix this later. For the moment attached is a test that represents the problem.

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