Squeak-dev October 1999

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141 participants
396 discussions

Re: [BUG] MVC System Browser Problems
by JArchibald＠aol.com 28 Oct '99

28 Oct '99

=> 10/28/99 1:56:59 PM EDT, bolot(a)cc.gatech.edu => << The problem here becomes evident if you do one of the following in another browser: - add a class that's above the currently selected class (higher in category hierarchy or alphabetically in the same category) >> Yes! I have run into that. I tried to add a class Sequence, just above Interval, with the following script and results. (a) Using the standard Browser (b) I created a sub-class of SequenceableCollection, named Sequence with instance variables: start & stop (c) I adjusted the definition of Interval to take Sequence as it super class, and it then had it have only one instance variable: step (d) When I do accept, Smalltalk compilation just ground its way into limbo. I had to quit from Windows close [X] button. No walkbacks, no Debug.log file. As I said before, this is with 2.6 (clean image), and running on Windows'95 on an older (133MHz) Pentium II. Jerry.

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TrueType font hackery - who wanted it?
by Tim Rowledge 28 Oct '99

28 Oct '99

Somebody asked for the changeset I have that makes an ugly hack at doing some stuff with TT fonts. Can't remember who it was now I'm at work and can find the .cs, of course! tim -- Fractured Idiom:- ICH LIEBE RICH - I'm really crazy about having dough Tim Rowledge: rowledge(a)interval.com (w) +1 (650) 842-6110 (w) tim(a)sumeru.stanford.edu (h) <http://sumeru.stanford.edu/tim>

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Re: [BUG] MVC System Browser Problems
by JArchibald＠aol.com 28 Oct '99

28 Oct '99

=> 10/28/99 12:25:25 PM EDT, Dean_Swan(a)Mitel.COM => << Under MVC, it seems that the System Browser is quite broken with respect to adding new classes, methods, and method categories, all of which seem to work fine in a Morphic project. >> I assume you're talking about 2.6. Right? (For once I'm up to date). What is your platform? The Browser in MVC seems to be running okay for me on Windows'95. Do you have a specific test that will demonstrate the problem? I would be glad to run it in my environment to try and isolate whether this is a platform specific bug. Jerry Archibald systemObjectivesIncorporated

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RE: license
by agree＠carltonfields.com 28 Oct '99

28 Oct '99

> I think Squeak users may have trouble finding a valid license. The > distribution doesn't come with one (AFAIK). And, more important: the > license on the Squeak Website is on the name of Apple, while the > copyrights are now of Disney (?) Or am I mistaking? Apple is apparently the owner of the base Squeak system (and the 68000 Smalltalk system on which it was directly based). The license permitted the creation of derivative works created therefrom, subject to the terms of the license, which further provided a right to distribute only subject to the following: "You may distribute and sublicense such Modified Software only under the terms of a valid, binding license that makes no representations or warranties on behalf of Apple, and is no less protective of Apple and Apple's rights than this License." and further providing: "If the Modified Software contains modifications, overwrites, replacements, deletions, additions, or ports to new platforms of: (1) the methods of existing class objects or their existing relationships, or (2) any part of the virtual machine, then ***for so long as the Modified Software is distributed or sublicensed to others, such modified, overwritten, replaced, deleted, added and ported portions of the Modified Software must be made publicly available, preferably by means of download from a website, at no charge under the terms set forth in Exhibit A below.***" Exhibit A, in turn provides: "EXHIBIT A License. You may copy, install, use, modify and create derivative works of the [Modified Software] "Changed Software" (but you may not modify or create derivative works of the [Fonts]) and distribute and sublicense such Changed Software, provided however, that if the Changed Software contains modifications, overwrites, replacements, deletions, additions, or ports to new platforms of: (1) the methods of existing classes objects or their existing relationships, or (2) any part of the virtual machine, then for so long as the Changed Software is distributed or sublicensed to others, such modified, overwritten, replaced, deleted, added and ported portions of the Changed Software must be made publicly available, preferably by means of download from a website, at no charge under the terms of a license that makes no representations or warranties on behalf of any third party, is no less protective of [the licensors of the Modified Software] and its licensors, and contains the terms set forth in Exhibit A below [which should contain the terms of this Exhibit A]. You may distribute and sublicense the [Fonts] only as a part of and for use with Changed Software, and not as a part of or for use with Changed Software that is distributed or sublicensed for a fee or for other valuable consideration." Accordingly, Disney's (and many of our) contributions to the code, to the extent they are Modified Software, and to the extent distributed to third parties, are subject to the Exhibit A License. Some purely original code may or may not be within its aegis, but may well fall within its scope by operation of law or implied fact. It might not be a bad idea to consider which code in Squeak 2.6 might not be Modified Software, and to assure that express licenses are obtained and granted. It may be fairly difficult to provide such a package without changing the "the methods of existing classes, objects or their existing relationships" (the latter being the trick to avoid) or making "additions" to them, so most contributions I have considered (in an admittedly casual reflection) are probably Modified Software or Changed Software. Now, I suppose that the license permits creation of a new license for present day Squeak, with a variation of language to make clearer the relationship between Apple, Disney, third-party contributors and you. For example, Disney might contemplate issuing a new Squeak License, which has broader coverage than the definition of Modified Software (perhaps akin to GPL, Mozilla, Jini or Apple's new OSS licenses -- taking care not to extend the virus too broadly, leaving outs for entirely independent packages that are not Modified Software), which may be "at least as protective" of Apple and prior contributors as the Apple license. BSD may not satisfy the constraints, in that it may be read not to include all of the terms of Exhibit A. I leave that decision entirely within the hands of Disney and its excellent array of IP and computer lawyers. [On the other hand, if you want to start a movement, write your own proposed license, and offer a modification subject only to your license. If accepted, something might happen.] It remains unclear to me that any such effort is necessary at this time, and that the implied-in-law or implied-in-fact licenses derived thereby are adequately clear. This is not to say the problem isn't worth revisiting from time to time, only that the concerns to which I am replying appear somewhat overstated. The following is somewhat obligatory so I can continue to practice law and hack in my spare time, please bear with me: The preceding survey of the license is hardly a comprehensive study necessary to arrive at any reasonable legal conclusions, and it is offered solely to provide an outline for your individual analyses and study of these issues. None of this should be construed as legal advice, which would require the application of applicable law to the particular facts and details of the software you are actually using. To the extent you have any concern at all about this matter, you should consult a qualified attorney to examine your particular facts and details and rely upon his or her advices.

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RE: Squeak for handhelds - help!
by Jarvis, Robert P. 28 Oct '99

28 Oct '99

Look at the line in SoftwareCursor>>display which reads [cursorLoc == savePoint] ifFalse: The problem here is that you're sending ifFalse: to a Block, which isn't happy about receiving ifFalse:. If you change the braces to parentheses this should work. Bob Jarvis The Timken Company > -----Original Message----- > From: Dean_Swan(a)Mitel.COM [SMTP:Dean_Swan@Mitel.COM] > Sent: Thursday, October 28, 1999 12:48 PM > To: squeak(a)cs.uiuc.edu > Subject: Squeak for handhelds - help! > > > Ok, I've spent enough time looking at the issues related to getting Squeak > into > a usable state on the Casio E-105, that I actually decided to start coding > some > of the needed additions, and ran quickly into some roadblocks. > > First one is the previously reported problem(s) with the System Browser > under > MVC. > > Second one is what I need help with.... > > I've added the following class: > > CursorWithMask subclass: #SoftwareCursor > instanceVariableNames: 'saveForm savePoint ' > classVariableNames: '' > poolDictionaries: '' > category: 'Graphics-Display Objects' > > , and this method, as a start to adding a Cursor displayed by Squeak > (since > WinCE doesn't do it): > > display > "comment stating purpose of message" > > | cursorLoc | > cursorLoc _ Sensor cursorPoint. > [cursorLoc == savePoint] ifFalse: > [ > saveForm isNil ifFalse: [saveForm displayAt: savePoint]. > savePoint _ cursorLoc. > saveForm _ Form fromDisplay: (Rectangle origin: savePoint > extent: > 16@16). > self displayAt: cursorLoc. > ] > > > Addmittedly, this method doesn't account for the 'maskForm', or 'offset', > but I > thought I'd start simple. > > When I try the following code to test my new method, I get a walkback > complaining about a Nonboolean Receiver. > > | a | > a _ SoftwareCursor new. > Cursor currentCursor: Cursor blank. > [Sensor anyButtonPressed] whileFalse: [ a display ]. > Cursor currentCursor: Cursor normal. > > Opening the debugger and going to 'SoftwareCursor>>display', 'isNil' in > the > 'saveForm isNil ifFalse: [ ....' line is highlighted. > > I've tried messing with parentheses and brackets, with no luck. > Evaluating > 'saveForm isNil' in the debugger source pane returns 'true', and > evaluating > 'saveForm isNil class' returns 'True', which is a subclass of 'Boolean', > so I > don't understand why the VM is complaining with 'mustBeBoolean'. > > > > Any explanation and/or guidance would be most appreciated. > > > > After I get the software cursor issues worked out, my next step will be to > create an 'InputSensor' substitute class that remaps the hardware buttons > on the > E-105 to the red, yellow, blue mouse buttons, and prevents 'mouse down' > events > from WinCE from being interpreted as clicks by Squeak. I'm assuming then > that > creating an instance of my new sensor class and assigning it to 'Sensor' > should > make everything work? Are there any places in the image that will be a > problem > for this approach? > > > > Oh, I forgot to mention... All of the above was done working from a 2.5 > Win32 VM > on WinNT or 95, with a 2.5 image through changeset #1447. > > > > Thanks (in advance) for any help you can offer! > > > > -Dean Swan > > dean_swan(a)mitel.com > > > > > >

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Re: [UPDATES]
by Bruce ONeel 28 Oct '99

28 Oct '99

Hi, Thanks. Yes, this was to keep the 2.6 bundles up to date. cheers bruce Dan Ingalls <Dan.Ingalls(a)disney.com> wrote: > Bruce ONeel <beoneel(a)mindspring.com> wrote... > > When I try this with a Squeak (fresh from uiuc) who thinks it is > >Squeak 2.6 of 11 October 99 with the last changeset of 1559, I only get > >one changeset > > > >Am I doing something wrong? Thanks! > > Yes, and no. > > This is the only update we have issued for the Squeak 2.6 release. > It is a low risk bug-fix. So, you got what you should. > > The title of my message SHOULD have been "[UPDATES] More for 2.7alpha". > That was my fault. > As you know, if you wish to receive these, you first need to execute... > > EToySystem eToyVersion: 'Squeak2.7alpha' date: Date today. > > Hope this helps > > - Dan

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Squeak for handhelds - help!
by Dean_Swan＠Mitel.COM 28 Oct '99

28 Oct '99

Ok, I've spent enough time looking at the issues related to getting Squeak into a usable state on the Casio E-105, that I actually decided to start coding some of the needed additions, and ran quickly into some roadblocks. First one is the previously reported problem(s) with the System Browser under MVC. Second one is what I need help with.... I've added the following class: CursorWithMask subclass: #SoftwareCursor instanceVariableNames: 'saveForm savePoint ' classVariableNames: '' poolDictionaries: '' category: 'Graphics-Display Objects' , and this method, as a start to adding a Cursor displayed by Squeak (since WinCE doesn't do it): display "comment stating purpose of message" | cursorLoc | cursorLoc _ Sensor cursorPoint. [cursorLoc == savePoint] ifFalse: [ saveForm isNil ifFalse: [saveForm displayAt: savePoint]. savePoint _ cursorLoc. saveForm _ Form fromDisplay: (Rectangle origin: savePoint extent: 16@16). self displayAt: cursorLoc. ] Addmittedly, this method doesn't account for the 'maskForm', or 'offset', but I thought I'd start simple. When I try the following code to test my new method, I get a walkback complaining about a Nonboolean Receiver. | a | a _ SoftwareCursor new. Cursor currentCursor: Cursor blank. [Sensor anyButtonPressed] whileFalse: [ a display ]. Cursor currentCursor: Cursor normal. Opening the debugger and going to 'SoftwareCursor>>display', 'isNil' in the 'saveForm isNil ifFalse: [ ....' line is highlighted. I've tried messing with parentheses and brackets, with no luck. Evaluating 'saveForm isNil' in the debugger source pane returns 'true', and evaluating 'saveForm isNil class' returns 'True', which is a subclass of 'Boolean', so I don't understand why the VM is complaining with 'mustBeBoolean'. Any explanation and/or guidance would be most appreciated. After I get the software cursor issues worked out, my next step will be to create an 'InputSensor' substitute class that remaps the hardware buttons on the E-105 to the red, yellow, blue mouse buttons, and prevents 'mouse down' events from WinCE from being interpreted as clicks by Squeak. I'm assuming then that creating an instance of my new sensor class and assigning it to 'Sensor' should make everything work? Are there any places in the image that will be a problem for this approach? Oh, I forgot to mention... All of the above was done working from a 2.5 Win32 VM on WinNT or 95, with a 2.5 image through changeset #1447. Thanks (in advance) for any help you can offer! -Dean Swan dean_swan(a)mitel.com

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RE: hey wassup squEAK ;)
by Adrian Sampaleanu 28 Oct '99

28 Oct '99

> -----Original Message----- > From: Andrew C. Greenberg [mailto:werdna@gate.net] > Sent: October 26, 1999 6:55 AM > To: squeak(a)cs.uiuc.edu > Subject: Re: hey wassup squEAK ;) > > > You may all be assured that I did not send the earlier e-mail bearing > this title. > > I received spam with this same message earlier this morning and it > bears an e-mail address similar to mine. so I shall presume that it > emanated from my machine. > > If anyone has information concerning a virus/trojan horse associated > with this message or messages of this type, I'd be obliged. Look for Happy99.exe (something like that) or variations thereof. They send out e-mails to the addresses in your address book. As a general rule, don't open executables that come as attachments even if they're from friends as the message could be a result of just such a virus. Adrian

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license
by Stefan Rieken 28 Oct '99

28 Oct '99

Hello, I think Squeak users may have trouble finding a valid license. The distribution doesn't come with one (AFAIK). And, more important: the license on the Squeak Website is on the name of Apple, while the copyrights are now of Disney (?) Or am I mistaking? Can someone clear this up for me, because I'd like to read it (yes serious!! :-). Greets, Stefan

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Re: [UPDATES]
by Bruce ONeel 28 Oct '99

28 Oct '99

Hi, When I try this with a Squeak (fresh from uiuc) who thinks it is Squeak 2.6 of 11 October 99 with the last changeset of 1559, I only get one changeset The transcript shows: ====== squeak.cs.uiuc.edu/Squeak2.0/updates/updates.list squeak.cs.uiuc.edu/Squeak2.0/updates/1578pickerFix-sw.cs File 1578pickerFix-sw.cs successfully filed in to change set 1578pickerFix-sw ===== Am I doing something wrong? Thanks! cheers bruce Dan Ingalls <Dan.Ingalls(a)disney.com> wrote: > ... as follows [I couldn't resist David's FreeCell. I spent a day making it work when flexed] ... > ------------------------- > 1569methodMorph-sw -- Scott Wallace -- 23 October 1999 > Provides a code-holding morph, MethodMorph, that can function on a stand-alone basis; it needs neither a surrounding window nor an accompanying list pane. > MethodMorphs are self-updating, so that you can edit the corresponding code anywhere and it will keep itself abreast of the changes. And of course you can edit the code in the MethodMorph and have its effect felt everywhere else. (This differs from the other smart-updating mechanisms in that everything else is based on windows and list panes, whereas MethodMorphs live happily outside that regime.) > Adds an item to the message-list panes of browsers, etc., allowing you to launch one of these stand-alone MethodMorphs for any method. > Also adds an item to the Scriptor menus so that a MethodMorph can be torn off from any Scriptor as well. > The menu for a MethodMorph sports an item 'whose script is this', which you can invoke if you have lost track of which object or class the method is associated with." > > 1570divers-sw -- Scott Wallace -- 23 October 1999 > (1) Adds a new annotation option for annotation panes: the time stamp of the prior version of the method. > (2) If the #optionalMorphicButtons preference is true, places the control buttons for a morphic pre-debug window into the interior of the window, making the title-bar able to accommodate the error message more fully, and presenting the three practical alternatives in a uniform fashion. > (3) Adds a 'full screen' command to the morphic window menu. > (4) Fixes the bugs that made the screen-menu commands to resume drawing and resume ticking be sent to the wrong object, and hence not succeed in affecting the world as intended. > (5) Clears up a glitch relating to purging the Trash when it is in a closed flap." > > 1571pre-FreeCell-dp -- David Pennell -- 24 October 1999 > System changes needed for FreeCell and miscellaneous other changes. > 1. Ability to specify the seed when shuffling collections. > 2. Restore stepping in SystemWindow when expanding. > 3. Morph>>openInWindow and related methods allow any Morph to be opened in a SystemWindow. Uses RealEstateAgent to locate window and causes AlignmentMorphs to layout" > > 1572pickerFix-sw -- Scott Wallace -- 26 October 1999 > Fixes a bug in 2.6 which prevented the revert box of the color picker from ever working." > > 1573setWindowColor--sw -- Scott Wallace -- 26 October 1999 > Adds an item to the window menu for morphic windows allowing you to set the window color." > > 1574flexedViewerEtc-sw -- Scott Wallace -- 26 October 1999 > Several fixes relating to FV's = flexed (rotated and/or scaled) viewers (but because display of viewers and of flexed objects are both slow, display of flexed viewers can be VERY slow, and there also are probably more glitches in use of FV's, so use them at your own peril.): > (1) When you dismiss a FV, it now entirely disappears rather than leaving a TransformationMorph behind. > (2) Arrow buttons in numeric readouts and on various tiles now work correctly in a FV. > (3) When you pull a phrase out of a FV, it sticks to the hand right where it ought to now, rather than at a considerable offset. > (4) When you switch categories in a FV, the new entries now show up at the proper place. > Other bugs fixed in this update: > * When you drop a paint-invoking morph back into a parts bin, you no longer fall into a debugger. > * Free-standing viewers now retain their dismiss buttons after a structural change." > > 1575roundedMethodMorph-sw -- Scott Wallace -- 26 October 1999 > Makes MethodMorphs sport rounded corners" > > 1576FlexDrag-di -- Dan Ingalls -- 21 October 1999 > A number of changes that make dragging of objects around a flexed pasteup look and work nicer. > Mainly if you pick up a morph from a flexed environment, it retains its flex while in the hand. > A number of things required fixing such as double-clicking in flexed environments. > One other unrelated fix: > Cause canvas image: of 1-bit forms to use opaque white. > > 1577FreeCell-dpdi -- David Pennell -- 19 October 1999 > A Squeak implementation of FreeCell by David Pennell with a number of features added by Dan Ingalls.

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