Squeak-dev August 2004

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154 participants
394 discussions

Morphic, I still don't get it...
by Pupeno 03 Aug '04

03 Aug '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm trying to understand Morphic and why it is so wonderfull (and how to build real applications with it)... but so far, I failed. I come from the Qt/KDE world, where I built interfaces with a GUI builder, called Designer, where I placed buttons, text boxes and anything else into a window (widget) and layed it out with a dynamic system. It seems morphic has the same dynamic system. I also happened to have the concept of actions, a program have actions and the items in the menus are some graphical representation of those actions, and the toolbars other representations. But Morphic doesn't seem to have the concept of menubars nor toolbars... am I wrong ? - From my point of view Morphic seems very powerfull to do very weird things, nice things but weird... am I wrong ? I mean, you can have nice things done with text in curves and so on, but most applications don't use that. Another thing that I don't like about Morphic is that it doesn't 'impose' a set of standards so the programs end up being very different one to each other, colores, arrangements, buttons, etc, etc. My intention is not to be critic, but to understand, can you please, help me understand ? Thanks. - -- Pupeno: pupeno(a)pupeno.com - http://www.pupeno.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBDI92fW48a9PWGkURAtyXAJ9zB1mTbxFrVdYoiNKKaOreW2N2bQCfSQq6 ME3nDWQRS4IchPEvQYy+p9Y= =la/K -----END PGP SIGNATURE-----

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[ENH] String and Character conversion methods
by Cancerbero 02 Aug '04

02 Aug '04

Hi. I don't know how formally make this kind of suggestions so excuse me if I'm doing it wrong. My situation is this: The user's input is a String representing a floating point number, so I want something that converts a String representing a floating point number to a Float. Example: Something like String>>asFloat so '3.14' asFloat returns the Float 3.14. So my suggesiont is to add a method String>>asFloat. For example: String>>asFloat "returns the float number represented by this String. For example '0.01' asFloat will return the Float 0.1e-1. The strings MUST be representing float numbers in the format 9.12345 and not in the format 0.1e-4. TO DO: the conversion when the represented float is in the format: 0.1e-4. " |x exp point| x:=0.0. point:=false. (self size) to: 1 by: -1 do: [: i| ((self at: i)=$.) ifTrue: [point:=true] ifFalse: [ point ifTrue: [exp:=self size - i - 1] ifFalse: [exp:=self size - i]. x:=x+(((self at: i)asDigit)*(10 raisedTo: exp)). ]. ]. (self size) to: 1 by: -1 do: [: i| ((self at: i)=$.) ifTrue: [x:=x * (10 raisedTo: (i-(self size)))] ]. ^x where Character>>asDigit is something like: Character>>asDigit "Example : $4 asDigit will return the SmallInteger 4" ^(self asInteger)-($0 asInteger) Bye -- Sebastián Gurin (Cancerbero) cancerbero_sgxARROBAusers.sourceforge.net http://www.geocities.com/cancerbero_sgx Un poco de sabiduría sí es posible; mas en todas las cosas he hallado esta feliz certidumbre: prefieren bailar sobre los pies del azar. --Nietzsche

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RE: [BUG][BFAV][m17n]Attachments download
by Frank Shearar 02 Aug '04

02 Aug '04

> -----Original Message----- > From: Karl Ramberg [mailto:karl.ramberg@chello.se] > Sent: 30 July 2004 11:53 > To: Squeak > Subject: [BUG][BFAV][m17n]Attachments download > > > Attachments downloaded with BAFV when m17n is installed are corrupted. Does this happen because of the encoding issues in the m17n stuff reported by others? That Latin1/UTF-8 discussion of last week? frank ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent RNID policy. If you are not the intended recipient you are advised that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please notify the RNID Helpdesk by telephone on: +44 (0) 207 296 8282. The Royal National Institute for Deaf People Registered Office 19*23 Featherstone Street London EC1Y 8SL No. 454169 (England) Registered Charity No. 207720 ********************************************************************

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RE: Using video input in Squeak
by Rob Hensley 02 Aug '04

02 Aug '04

Hello all, I'm not sure if anyone is aware of how the interactive WebCam program (http://minnow.cc.gatech.edu/squeak/1853) works, but -- as many of you may remember -- I am atempting something very similar. I am not using a webcam (I am using a video camera) or the WebCam/VideoFlow packages/classes (I am using the VideoAndImageProcessing package -- specifically the DShowVideoController class -- to extract/manipulate the video image). I am finding it difficult to see how the video input and the "ball" object are 1) joined together and 2) made to interact with one another. If anyone has some insight into the process (one of the authors?), I would appreciate any suggestions. I am specifically interested in what kind of object the video input actually is: is it a Form (as it is in the DShowVideoController class), or a ColorMap, or a Morph (or something else), or does it get converted into a Morph and used that way (that's how I am trying to do it!)? I assume the yellow ball is a Morph object; how is the collision detection handled? Thanks in advance for all of your time and assistence! Rob -----Original Message----- From: squeak-dev-bounces(a)lists.squeakfoundation.org on behalf of Yoshiki Ohshima Sent: Sun 7/25/2004 8:17 AM To: The general-purpose Squeak developers list Cc: Subject: Re: Using video input in Squeak Hello, > This approach doesn't result in the fatal crash, but I do get an "Error: > DirectShow: True" error. This error simply indicates that you were trying to initialize the subsystem when it is already initialized. One thing you can do is call the class side #shutdown method once and it shouldn't raise this error. In regards to the multi-threaded code, you should use the WorldState class #addDeferredUIMessage: to avoid the race condition. -- Yoshiki

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About deprecating AlignmentMorph
by stéphane ducasse 02 Aug '04

02 Aug '04

Hi Alignment has been deprecated (and should not be used anymore) but there are a lot of ancient code still using it. Cleaning that would be nice, if somebody dares :). As a first step in that direction I would like to know where coudl we define the helper methods newVariableTransparentSpacer "Answer a space-filling instance of me of the given color." ^ self new hResizing: #spaceFill; vResizing: #spaceFill; layoutInset: 0; borderWidth: 0; extent: 1@1; color: Color transparent and if this is the same as Morph new layoutPolicy: TableLayout new; hResizing: #spaceFill; vResizing: #spaceFill; layoutInset: 0; borderWidth: 0; extent: 1@1; color: Color transparent Stef

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3.7
by Trygve Reenskaug 02 Aug '04

02 Aug '04

I have seen discussions about 3.7 alpha, beta, gamma. The focus seems now to be on 3.8. Does anybody know when 3.7 will be released? cheers --Trygve -- Trygve Reenskaug mailto: trygver <at> ifi.uio.no Morgedalsvn. 5A http://heim.ifi.uio.no/~trygver N-0378 Oslo Tel: (+47) 22 49 57 27 Norway

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[BUG][Whisker] Adding new categories with a WhiskerBrowser open
by Frank Shearar 02 Aug '04

02 Aug '04

I had a Whisker browser open. I installed Over The Air, which contains the category GSM-Modem. I didn't see it appear in the category pane. No problem, I said, and hit the "update" item in the context menu. Still no GSM-Modem category. OK, so I'll search for a class in the package (PDU) - I get an "Error: Object is not in the collection" walkback. So what have I missed? I'd preferred for Whisker to just update itself automagically when I added a new category/Package, but I don't mind having to just hit "update". But why didn't it work? Or have I just missed something? frank ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent RNID policy. If you are not the intended recipient you are advised that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please notify the RNID Helpdesk by telephone on: +44 (0) 207 296 8282. The Royal National Institute for Deaf People Registered Office 19*23 Featherstone Street London EC1Y 8SL No. 454169 (England) Registered Charity No. 207720 ********************************************************************

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RE: [BUG]DecentReviewerNotePad mailing out bug report!
by Frank Shearar 02 Aug '04

02 Aug '04

> -----Original Message----- > From: Ned Konz [mailto:ned@bike-nomad.com] > Sent: 30 July 2004 02:40 > To: The general-purpose Squeak developers list > Subject: Re: [BUG]DecentReviewerNotePad mailing out bug report! > > > On Thursday 29 July 2004 7:07 am, Karl Ramberg wrote: > > I have also noticed it is hard to bring other windows to the > > front of the desktop if there is a DecentReviewerNotePad active. > > Sometimes I have to move the window behind to bring it to front. > > Part of the problem is that the DRNP is not a window. > > I submitted some changes that stuck it and the other BFAV GUI > component into a > real window, and these behaved much better. I'm waiting for MoreWindowColorFixes-nk (BFAV post 22791) to make it as an update before adding your BFAVRealWindows-nk changeset, Ned. Doug approved it for 3.8alpha, but I don't think he's put it in the update stream yet. frank ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent RNID policy. If you are not the intended recipient you are advised that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please notify the RNID Helpdesk by telephone on: +44 (0) 207 296 8282. The Royal National Institute for Deaf People Registered Office 19*23 Featherstone Street London EC1Y 8SL No. 454169 (England) Registered Charity No. 207720 ********************************************************************

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how to update to 3.7 (Newbie)
by Jochen Riekhof 02 Aug '04

02 Aug '04

Hi... as it looks like Squeak 3.7 is released soon, I would like to know how to best move my stuff over from 3.6. Is there any preferred way to do this? Ciao ...Jochen

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[Q][Test][m17n] How do I install fonts?
by Hannes Hirzel 02 Aug '04

02 Aug '04

Hello I unpacked the file 'install-m17n.zip' from http://impara.de/drop/m17n/ and run the script 'install' in the FileBrowser. All the changesets were installed correctly. In the file m17n37b-2.sar (which as I understand was an earlier attempt at an install package) I extracted the directory 'fonts' and put it in my Squeak directory. Then I tried to execute the code snippets I found on the class side of StrikeFontSet in the method installExternalFontFileName6: fileName encoding: encoding encodingName: aString textStyleName: styleName StrikeFontSet installExternalFontFileName: 'extendedLatinFont.out' encoding: UnicodeLatinExtendedAB leadingChar encodingName: #ExtendedLatin textStyleName: #DefaultMultiStyle. StrikeFontSet installExternalFontFileName: 'ipaExtensionsFont.out' encoding: UnicodeIPA leadingChar encodingName: #IPAExtensions textStyleName: #DefaultMultiStyle. But an error message popped up saying that UnicodeLatinExtendedAB and UnicodeIPA are not known. My question now: What is the current way now to file in additional fonts and install them correctly? Thank you very much for this great work you are doing adding Unicode to Squeak! Hannes

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