Squeak-dev October 1999

squeak-dev@lists.squeakfoundation.org

141 participants
396 discussions

Re: [BUG] MVC System Browser Problems
by JArchibald＠aol.com 29 Oct '99

29 Oct '99

=> 10/28/99 2:33:25 PM EDT, JArchibald => << I have run into that. I tried to add a class Sequence, just above Interval, with the following script and results. >> (Too quick to post~) I find that the demonstration test case I described there does not (by itself) cause the offending behavior. I can't get the failure to repeat doing just what is described there. Apparently I had been working with two open "browsers". Mostly likely a ChangeSet browser together with the standard system Browser. But I had not opened a Morphic project while doing the edits. I'll see if Mark's comments enable me to recreate an MVC-only failure. Scott Wallace's indication of the solution details in Morphic (=> 10/28/99 9:49:18 PM EDT, Scott.Wallace(a)disney.com =>) look like they will help me to understand what is missing with MVC browser clashes. Jerry. "Sometimes you feel like a nut, sometimes you are!" => 10/28/99 4:05:36 PM EDT, guzdial(a)cc.gatech.edu => << I've encountered similar variations to this problem. The problem is that multiple browsers get confused about what's in their lists vs. what's defined in the system as a whole. Adding something in one browser can confuse another browser which THINKS it sees the whole list, but something was just added to the list. I posted a fix for a couple of these problems ages ago -- I specifically dealt with classes and message categories. But it really needs a Browser overhaul >>

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[UPDATES] more for 2.7alpha
by Dan Ingalls 29 Oct '99

29 Oct '99

As follows... ----------------- 1579ThreeTweaks-di -- Dan Ingalls -- 27 October 1999 Fixes a bug in FileList shiftedYellowButtonMenu and cleans up a few obsolete methods. Changes the tests in ParagraphEditor dispatchOnCharacter so as to avoid ctrl-key combinations being masked by some non-shifted command keys (like pageDown). Externally (re)sets the preference Preferences fastDragWindowForMorphic to true. 1580windowColorTweaks-sw -- Scott Wallace -- 27 October 1999 Fixes up the default window colors for a few neglected items -- assembly areas, scripting areas, and selector browsers. In the face of current poor support for translucent colors in system windows, no longer admits translucent colors as window colors. This is a temporary workaround! Also circumvents some very unfortunate window-color consequences when a black or near-black color is reported from the color picker upon mouse-down in the translucent box and mouse-drag across a picker border line." 1581checkForUnsent-sw -- Scott Wallace -- 27 October 1999 Adds a feature in the change sorter allowing you to check a change set for unsent messages. Look in the shifted side of the change-set-list's menu. Also fixes the long-standing bug that included, in a method-list browser for a change-set, vacuous entries for methods added but then removed. Also fixes a bug in update 1569 that could make MethodMorphs work improperly for class-side methods." 1582threeMore-sw -- Scott Wallace -- 27 October 1999 (1) Fixes a bug that created a spurious extra player when you open a flap-based viewer on a flexed morph that previously was playerless. (A symptom of this was that the thumbnail of such a viewer did not reflect rotations of the object.) (2) Makes the second default category for an unscripted player be color-and-border rather than the boolean tests; this is primarily because the isOverColor computation in the 'tests' category is so slow, allowing the casual presence of a viewer or two on the screen significantly to degrade performance. Now you'll not get the tests category inadvertently. Correspondingly, the 'colorUnder' slot,is no longer shown in 'basic' category, because it will already be seen in the color-and-border category. (3) Fixes the ever-since-flexing-came-along bug that sometimes made a clone obtained via the duplicating handle be wrongly positioned when the clonee had been a transformed object inside a window. The clone now appears under the cursor as intended." 1583graphicalDict-sw -- Scott Wallace -- 27 October 1999 Some improvements to 'graphical dictionaries', such as the one you get when you inspect the ScriptingSystem's form library by evaluating 'ScriptingSystem inspectFormDictionary' (1) You can now directly repaint any object you see in the dictionary -- via the new 'repaint' command in the menu. (2) A 'find' command is also added to the menu, allowing you to locate any object by name. The search starts after the current entry, and wraps around to the beginning if necesary, and is case-blind, and is done keyword-fashion, so that any picture name containing the search string anywhere within it will be found. (3) A menu icon is supplied rather than the former textual <> button label. (4) Balloon help is provided for all the controls." 1584MoreFlexTweaks-di -- Dan Ingalls -- 27 October 1999 Reduces the step rate of ThumbnailMorphs from 20/sec to 4/sec. Allows SystemWindows to be flexed, and they collapse flexed as well. Causes scaling of flexMorphs to stick around multiples of 0.25 if shrinking and 0.5 if growing. Tweaks transformationMorphs to yield faithful 90-degree rotations. 1585chgSetWakeup-sw -- Scott Wallace -- 28 October 1999 Fixes the bug that made single (simple) change sorters not wake up properly." 1586FlexTweaks2-di -- Dan Ingalls -- 28 October 1999 Two fixes for flexing of SystemWindows: Causes both collapse point and fullFrame point to be properly tracked. Defeats fast drag and fast reframe when flexed, as these dont' work right then. 1587SWwindowsIn -- Dan Ingalls -- 28 October 1999 Causes collapseAll and expandAll windows to include flexed windows.

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RE: [BUG] MVC System Browser Problems
by Norton, Chris 29 Oct '99

29 Oct '99

Hi Stewart. You can find these options in the preferences panel. If you turn on Optional Morphic Buttons, you will find them (in a morphic project) on new instances of System Browsers, File List, Debugger, etc. The same holds true for Annotations. You can configure your Annotations if you have global flaps turned on. Look on the left side of a morphic project flap for Annotations. Cheers & good evening... ---==> Chris > -----Original Message----- > From: Stewart MacLean [SMTP:stewart.maclean@nzhis.govt.nz] > Sent: Thursday, October 28, 1999 10:40 PM > To: 'squeak(a)cs.uiuc.edu' > Subject: RE: [BUG] MVC System Browser Problems > > Hi Scott or anybody else, > > I've had a quick look for "optional morphic buttons" and "use annotation > panes". > > Can you please remind me where I'd find them. > > I've always wondered what happend to the MVC concept with the browser > architecture - > looks like this is getting closer. > > Thanks, > > Stewart > > [snip] > > > For a strong effect try this out in 2.7 alpha: set the > > "optional morphic buttons" and "use annotation panes" > > preferences to true, then ask to "browse recent submissions" > > (in the 'changes' menu, or via the button in the Squeak > > flap), and then proceed to work in your usual fashion. The > > recent-submissions browser will continuously track all > > subsequent changes, providing a handy audit trail and an easy > > way to examine and revisit your recent working set. If you > > have the "diffs" button set, you will additionally see > > exactly what was changed in each method. > > > > Once you get used to these congenial new services, you'll > > soon enough forget the bad old days. > > > > -- Scott > > > > PS: If you do update to 2.7 alpha to try out the improved > > tools, be aware that pre-existing browsers, inspectors, etc., > > will *not* have the smart-updating behavior. Only windows > > launched after you've updated at least through #1564 will have it. > > > > PPS: The problems people have been mentioning have all been > > present in Squeak since the birth of Squeak, and they have > > been present in both the mvc and the morphic environments, > > and indeed they have been continuously present in every > > system in Squeak's ancestral blood-line dating back to the > > advent of browsers and inspectors around 25 years ago. > >

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RE: [BUG] MVC System Browser Problems
by Stewart MacLean 29 Oct '99

29 Oct '99

Hi Scott or anybody else, I've had a quick look for "optional morphic buttons" and "use annotation panes". Can you please remind me where I'd find them. I've always wondered what happend to the MVC concept with the browser architecture - looks like this is getting closer. Thanks, Stewart [snip] > For a strong effect try this out in 2.7 alpha: set the > "optional morphic buttons" and "use annotation panes" > preferences to true, then ask to "browse recent submissions" > (in the 'changes' menu, or via the button in the Squeak > flap), and then proceed to work in your usual fashion. The > recent-submissions browser will continuously track all > subsequent changes, providing a handy audit trail and an easy > way to examine and revisit your recent working set. If you > have the "diffs" button set, you will additionally see > exactly what was changed in each method. > > Once you get used to these congenial new services, you'll > soon enough forget the bad old days. > > -- Scott > > PS: If you do update to 2.7 alpha to try out the improved > tools, be aware that pre-existing browsers, inspectors, etc., > will *not* have the smart-updating behavior. Only windows > launched after you've updated at least through #1564 will have it. > > PPS: The problems people have been mentioning have all been > present in Squeak since the birth of Squeak, and they have > been present in both the mvc and the morphic environments, > and indeed they have been continuously present in every > system in Squeak's ancestral blood-line dating back to the > advent of browsers and inspectors around 25 years ago. >

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RE: license
by Jarvis, Robert P. 29 Oct '99

29 Oct '99

Hmmm. So, if one wants to charge for a Squeak derivative one must expunge the Squeak-supplied fonts from the image, replacing them with new fonts. Interesting... Bob Jarvis The Timken Company > -----Original Message----- > From: agree(a)carltonfields.com [SMTP:agree@carltonfields.com] > Sent: Thursday, October 28, 1999 1:36 PM > To: StefanRieken(a)SoftHome.net; squeak(a)cs.uiuc.edu > Subject: RE: license > > > 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: [BUG] MVC System Browser Problems
by Dean_Swan＠Mitel.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). > Actually, I was using 2.5, but I just checked, and 2.6 has the same problems. >What is your platform? The Browser in MVC seems to be running okay for me on >Windows'95. > I've seen this on Win95, WinNT, and MacOS 8.6. On the Mac I was using Squeak 2.4. On both Windoze machines I was using 2.5, but the problem still exists in 2.6. >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. > Here's what I did: 1) In the source editing pane of a system browser (in the default MVC project), type: CursorWithMask subclass: #SoftwareCursor instanceVariableNames: 'saveForm savePoint ' classVariableNames: '' poolDictionaries: '' category: 'Graphics-Display Objects' 2) 'accept' it. (i.e. 'accept' from pane menu, or Alt-s or Cmd-s (Mac)). This should add the 'SoftwareCursor' class to the class list, and set the browser to 'Graphics-Display Objects' with 'SoftwareCursor' as the current class. It doesn't. It appears to do nothing. 3) Open a system browser in a morphic project. 4) Repeat steps (1) & (2) in the browser in the morphic project. It works as expected. 5) Switch back to the MVC project, close the system browser, and open a new one. 6) Select 'Graphics-Display Objects' in the class category pane, 'SoftwareCursor' in the class pane. In the method category pane, select 'add item' from the pane menu. From the next menu pick 'testing'. 7) In the source code pane, replace the 'message selector and arguments' line with 'display'. Select the whole contents of the pane and 'accept' it from the pane menu or 'save' with Alt-s. This should complain about 'statements' is undefined, 'declare as temporary' or 'cancel'. It doesn't do this. 8) Swithc back to your morphic project, select a different class, the reselect 'SoftwareCursor' so the browser gets the added method category. 9) Select the 'testing' category. 10) Replace the 'method selector and arguments' line with 'display'. 11) Select the whole contents of the pane and 'accept' it. Everything works as expected from this point on. >Jerry Archibald >systemObjectivesIncorporated

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RE: TrueType font hackery - who wanted it?
by agree＠carltonfields.com 28 Oct '99

28 Oct '99

That was me as well -- please forward to my home address: werdna(a)gate.net. > -----Original Message----- > From: MIME :JArchibald@aol.com > Sent: Thursday, October 28, 1999 3:06 PM > To: squeak(a)cs.uiuc.edu > Cc: JArchibald(a)aol.com > Subject: Re: TrueType font hackery - who wanted it? > > > => 10/28/99 2:47:55 PM EDT, rowledge(a)interval.com => > << 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! >> > > Hi Tim, > > I am interested in your ugly hack. My font directed E-mail > did not specifically mention it, but I would be interested in > trying it out to see if it solved my problem. > > Thanks, > Jerry. > > > >

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Re: [BUG] MVC System Browser Problems
by Dean_Swan＠Mitel.COM 28 Oct '99

28 Oct '99

From: Dean Swan@MITEL on 10/28/99 03:19 PM Bolot, I've seen this problem too. It also happens if you try to move down off the bottom of the instance variable list pane in a debugger (using the keyboard), but it's not the problem that I was having with the browser. See my reply to Jerry Archibald for details. -Dean Swan Bolot Kerimbaev <bolot(a)cc.gatech.edu> on 10/28/99 01:55:35 PM Please respond to squeak(a)cs.uiuc.edu To: squeak(a)cs.uiuc.edu cc: Dean Swan/Ogd/Mitel@Mitel, JArchibald(a)aol.com Subject: Re: [BUG] MVC System Browser Problems 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) - add a method that's above the currently selected one - delete such entities The MVC System Browser uses indices to keep track of state. But does not do update when things change elsewhere. Thus, the pluggable lists don't change. Which results in things being called old way, but referring to other things (by index). A short-term solution is to open a menu in the category pane and do update. bolot On Thu, 28 Oct 1999 JArchibald(a)aol.com wrote: > => 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: TrueType font hackery - who wanted it?
by JArchibald＠aol.com 28 Oct '99

28 Oct '99

=> 10/28/99 2:47:55 PM EDT, rowledge(a)interval.com => << 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! >> Hi Tim, I am interested in your ugly hack. My font directed E-mail did not specifically mention it, but I would be interested in trying it out to see if it solved my problem. Thanks, Jerry.

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

28 Oct '99

From: Dean Swan@MITEL on 10/28/99 02:34 PM Bob, Thanks! That does, indeed solve the problem. And demonstrates one of the nice things about Squeak. I got detailed technical support for a very specific problem in less than an hour, at no charge. Not bad for "unsupported" software! I wish I could get the same for some of the embedded tools I use at work (where we pay $2500/yr./seat/product for support). -Dean Swan dean_swan(a)mitel.com "Jarvis, Robert P." <Jarvisb(a)timken.com> on 10/28/99 01:33:36 PM To: Dean Swan/Ogd/Mitel@Mitel cc: "'squeak(a)cs.uiuc.edu'" <squeak(a)cs.uiuc.edu> Subject: RE: Squeak for handhelds - help! 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

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