Squeak-dev August 2006

squeak-dev@lists.squeakfoundation.org

151 participants
220 discussions

Help scripting MC
by stéphane ducasse 29 Aug '06

29 Aug '06

Hi I would like to reset all the repository associated to packages and also set the repository to point to the right place I tried the following for example to add a repository to the flash package But it does not work (I closed the MC browser.....) (MCWorkingCopy allManagers select: [:each | each package name = 'Flash']) addRepository: (MCHttpRepository new location: 'http:// source.squeakfoundation.org/Balloon') Does anybody know the right invocation. This way I could release 3.9 with all the information nicely recorded Stef PS: the bug in changeset has been fixed....so once this is sorted out we can release 3.9

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Magma installation
by William Hubbard 29 Aug '06

29 Aug '06

I'm using Squeak 3.8. The Installing Magma swiki page isn't enough clear for me (http://minnow.cc.gatech.edu/squeak/2657) "Magma requires several support packages" Which ones? In what order must be installed? Most items in the Magma Repository doesn't have a summary of its functionality, (Maui, Ma base additions, WriteBarrier, Ma exception handling,...), should I have to browse the Squeak swiki to check if I need/want it? Finally, how do I know in Monticello what packages are installed? i.e. the SqueakMap Package Loader has an * to report package state. Bill

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List Silence
by Ken Causey 29 Aug '06

29 Aug '06

I did some maintenance on the community server yesterday and I guess I must have unintentionally left the mail server software in an only partially running state which resulted in the lists not working. I apologize for that and ask you to think of it as merely a short vacation. Prepare for a deluge of list traffic. Ken

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REMINDER: Squeak Chat Wednesday August 30th 08:00 GMT
by Ken Causey 29 Aug '06

29 Aug '06

Just a reminder that the next Squeak Chat will take place between 08:00 (8 AM) and 12:00 (Noon) GMT Wednesday August 30th, 2006. 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 This is a good time to contribute to the development of Squeak by participating in the Harvesting Process. One of the main ways to contribute is by Reviewing submitted fixes and enhancements. For information about the Harvesting Process see http://minnow.cc.gatech.edu/squeak/3152 If you have the time please attend and work toward the future of Squeak. The next seven chats are scheduled for 12:00 (12:00 PM) GMT Sunday September 03, 2006 16:00 (04:00 PM) GMT Thursday September 07, 2006 20:00 (08:00 PM) GMT Monday September 11, 2006 00:00 (12:00 AM) GMT Saturday September 16, 2006 04:00 (04:00 AM) GMT Wednesday September 20, 2006 08:00 (08:00 AM) GMT Sunday September 24, 2006 12:00 (12:00 PM) GMT Thursday September 28, 2006

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Recovering from a bad crash...
by Rich Warren 29 Aug '06

29 Aug '06

I was trying to run test cases for a project I'm working on, when I started getting a lot of errors (Unwind errors, or something like that). I eventually got them to stop, but a few seconds later the entire squeak environment went black. I had to force quit (working on a mac here), and when I tried to restart squeak, it appears to load, but nothing shows up. Is there any way to recover from something like this, or will I need to go back to a fresh image? I have a fair bit of code already written, and I'd rather not lose it. I've had intermittent trouble with squeak locking up (usually as a result of something I've done--but sometimes command-. doesn't fix things and I have to force quit). Are there any steps I can take to make squeak more stable? Thanks, -Rich-

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[ANN] FreeType+Subpixel anti-aliasing Update
by Andrew Tween 28 Aug '06

28 Aug '06

An updated vm+plugins+image containing my latest work in getting the FreeType font support from the Sophie project into 3.9 can be obtained from here... http://www.zen61439.zen.co.uk/Squeak3.9g-7054_FreeType.zip This is for Windows only. I'll try a Linux build next. Screenshots, for those lucky enough not to have Windows, are here... http://www.zen61439.zen.co.uk/lcdOff.png http://www.zen61439.zen.co.uk/lcdOn.png lcdOff.png is with the sub-pixel rendering turned off, and lcdOn.png with it switched on. Cheers, Andy ---------------- >From the readme.text file... This distribution contains the latest work on harvesting/porting the FreeType code from the Sophie project into Squeak3.9, and rescuing/updating the LCD subpixel anti-aliasing work started by the late Henrik Gedenryd. I have only compiled the required plugins for Win32, so this release is for Win32 only. It has been tested on Win2000. ------- The FT2Plugin is now external (FT2Plugin.dll). It now uses the latest FreeType2.2.1 library. Now works with 32,16, and 8 bit display depths. Gamma correction improved (now applied by the new BitBlt mode). Underline and Strikeout emphasis supported Synthetic emphasis is applied when a font does not support that emphasis directly. e.g. can now have Italic, and Bold-italic emphasis for Bitstream Vera Serif. Synthetic emphasis is indicated with an asterisk in the System Fonts picker e.g. Bold*, Bold Italic*. Fonts can be stored in the image as ByteArrays, and used by the FreeType plugin, without requiring the font file to exist, or be re-created, on disk. Fonts can be loaded through FileList services. There are options to embed a file's contents into the image (as described above); or to use the file each time the font needs to be accessed. Font files must be placed in the ./fonts folder before installing - this will be improved later. If a font file is missing from the ./Fonts folder when the image is started, a substitute strike font (Accuny or Accumon) will be used in its place. There is a new cache to hold the character glyphs/metrics for each font. The maximum size of the cache can be set (in Kb). ------- TODO: Kerning. Rotated text in subpixel mode. Loading font files from anywhere on disk. Loading whole font families in one operation (e.g. no need to load Vera.ttf, VeraBd.ttf, VeraIt.ttf, and VeraBI.ttf separately to install Bitstream Vera Sans). Improve sub-pixel filtering. (implement in plugin to speed up) See if support for pfb, pfa can be improved (attaching metric files). Support for other font types (currently ttf, ttc, otf, otc, pfa, pfb are supported). Support for ttf files without unicode char maps. Better font substitution for missing font files (i.e. use a sans serif strike font in place of a missing sans serif ttf font). Better underline/strikeout emphasis (currently drawn as solid line, but should be anti-aliased for non-integral line widths/alignment)

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2D and 3D Function Graphing?
by David Faught 28 Aug '06

28 Aug '06

Rich Warren wrote: >Are there any packages that handle 3d function graphing (like a >graphing calculator). Not that I know of. There is a 2D data point plotter called PlotMorph on SqueakMap at http://map1.squeakfoundation.org/packagesbyname >I saw a sample here: http://minnow.cc.gatech.edu/squeak/3231, but he >didn't say how the graphs were made. Is there an easy way to do this >in Balloon? The 2D WavyLines display was done with a series of simple open PolygonMorphs which were scaled by the data series maximums and minimums to fit the display area. The 3D plot on the SWiki page you referenced was done by constructing a triangle mesh from the data points. I copied one of the examples in the Balloon3D-Tutorial-Demos (which is in the Squeak 3.8 "full" distribution) and modified it to display my mesh. You might also want to look at the PTexture.cs.gz example code towards the bottom of the page at http://minnow.cc.gatech.edu/croquet/ProceduralTextures which is a fairly simple example of a contour plot. >I also saw KGraph, but it won't install. As Josh says, this is for a different class of graphs, not what you want to do. >Function Plotters (http://mate.dm.uba.ar/~caniglia/Andres/ >fplot23.zip) also looks good, but it dies after trying to send >messages to nil when I try to load it. This does look pretty cool. I suspect that it was written for a different version of Squeak than you are running. There could be some other mismatch that is causing the undefined object reference. Maybe you could forward the entire walkback listing? It should also be at the end of the SqueakDebug.log in the Squeak base directory. Cheers, Dave

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SqueakSource down?
by Josh Gargus 28 Aug '06

28 Aug '06

I can ping squeaksource.com, but going there with a web browser gives me the following error. Can someone take a look at this? Thanks, Josh Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /. Reason: Could not connect to remote machine: Operation timed out Apache/1.3.33 Server at squeaksource.com Port 80

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If python goes Etoys, let's go scripting then - with the best IDE for creating and a clean license for running(!) scripts
by Markus Gaelli 28 Aug '06

28 Aug '06

Dear squeak masters and friends, Professor Nierstrasz (liking the IDE of Squeak and Smalltalk a lot, but starting to build Ruby scripts for convenience (#!) reasons) asked Marcus and me about the possibility of having Squeak as a good script writing engine on the one hand and a script executor on the other hand. The underlying idea is simple: use a full fledged Squeak as your IDE but then file out your smalltalk script you created (in a more human readable version, thus without those "!!" and also edible in Emacs and friends, maybe looking like the scripts Andreas and Bert proposed on Squeak-dev recently) and run it on top of some minimal working image in a #!/usr/local/bin/squeak way. Ruby on rails will be on the next version of OS-X, but what does us stop to have things like Seaside there in the follow up? I think currently it is the license. Especially for the stuff needed to run the "scripts". Whereas I would not care for the open source kindness of the Squeak license, many people do... As far as I understand the situation, a minimal working image could be soon made OSI-compliant using this apple open source license APSL2, no? Isn't it mainly morphs on the image side? These would not be necessary in the minimal script, but maybe I am too "blue eyed" here again. But for the VM side: Is it too naive from me to think that it is only a: "YES, I HEREBY DECLARE ALL MY CHANGES TO THE APSL2 LICENSED VM FROM SQUEAK 1.1 ALSO TO BE APSL2 LICENSED" (please sign here ...) from the few VM gurus (I hopefully caught here as addressees) which prevents us from doing so? So please, dear VM gurus, tell me, this would be possible to relicense your great work of the last years to something OSI compliant- and then do it, - or that this has already been done, or that it is unnecessary for some good reason. I think changing the _current_ VM license to APSL2 could accelerate the rest of the process a lot. Then - having this "scripting language plot" established, we might be able to tear some more people to the "Etoys Omniuser plot" which in my eyes stays the master plan of course... And: I may be ignorant! Is there any discussion about this issue I am missing, or points that I see in a wrong perspective? Cheers, Markus p.s. Please forgive receiving this as a doublet, but it was silly of me to send this only to a few people yesterday - learn sth. new every day... ;-) The alternative would have been to send it to squeak-board, but now I opted to have the discussion (hopefully there is more action) public and not closed - it is about the openness of squeak in the end...

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3dot9, can somebody say where we are in the release process?
by Peace Jerome 27 Aug '06

27 Aug '06

Can somebody say where we are in the release process of 3dot9? As far as I can see we are somewhere near the finish of 3dot9 except: 1) There are reports of the sources being corrupted. 2) The need for some really big changes are coming out of the woodwork. -- ffi removal and the consequences of that. -- source file limitations 3) Some problems with condensed sources have become apparent to some. (see 1) -- how are these affecting the release? 4) What is the method/process for accepting the final 3dot9? Accepting is a customer function rather than a developer function. -- Who is playing the customer here? I figure: 1) 3dot9 is done and I am just not aware of it. 2) Its not done but the resources for the doing of it have been exausted. 3) Its some where near done. 4) We've just discovered what the real problems are. There will be a considerable delay in its doneness. ---- and either: 1) Its acceptable. 2) Its not acceptable. So what's the official word(s)? Yours in service and curiosity, -- Jerome Peace __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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