Squeak-dev September 2000

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115 participants
411 discussions

Re: Freetype2
by Duane Maxwell 01 Sep '00

01 Sep '00

Dan Ingalls writes: >1. A committed contributor to Squeak (I just want to let him be first to >announce this) has followed up on John McIntosh's suggestion that we might >be able to get a nice set of fonts from Doug Easterbrook. These could >then replace and augment the fonts now in Squeak. It is likely that we >will make this move as soon as they become available. Well, it's not any _real_ secret, since I think I publicly offered to have exobox take over that task a few weeks back. John Sarkela, Rob Withers and Paul McDonough did the actual work. Basically, Doug Easterbrook provided us with a set of old-style Windows bitmap font files (.FON) which reproduce the set of fonts typically found on the 1984 vintage Macintosh. For those of you who may have used such machines, these fonts included oddballs like Los Angeles, Venice, San Francisco, Atlanta, etc, as well as the classic workhorses Chicago, Monaco, Geneva, New York, etc. Doug has graciously agreed to let us release Squeakified versions of them under the SqL. The status is that we have the bulk of them converted to Squeak's sf2 format and have developed an installer which (occasionally) successfully replaces all of the Apple and Microsoft fonts with these, allowing them to be purged from the image. Unfortunately, a couple of the font files provided by Doug were damaged in transit and we're awaiting a resend. The only major issue is deciding how to properly replace the MS Comic font used primarily by EToy. None of these new fonts seem to capture the spirit, and the funkier ones don't really have enough point sizes available to meet all of the requirements. Anyone who has access to something that might be a better replacement that's also legally unencumbered, please let us know. BTW, does anyone (hint - SqC), have access to some sort of StrikeFont editor, even if it's MVC, in order to save us the trouble of writing one? I find it surprising that there isn't one built into the image.... -- Duane

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Re: Freetype2
by Lawson English 01 Sep '00

01 Sep '00

> Dan Ingalls wrote: > >> The crux of the biscuit here is: what is the legal status of content (ie > exported projects) that have these derived glyphs in them. > > My understanding (as someone who used to be in the typsetting business, > not as a lawyer) is that the legal protection for fonts is not > for the actual glyphs, but for the name of the font (trademark). > > This is why you see so many names for the same font (Helvetica/Swiss, > for instance). > > Copyright covers as well as any program for making glyphs > (think of Postscript or TTF or TeX, in which a font is a program). My understanding is that the "hint code" of a TrueType font is ALSO copyrighted. You can make a font look identical to a screen font, or even to the PS output, but you have to use different hinting to accomplish it. -- Reform is a state of mind. Vote with your mind, from your heart. Vote Reform, vote Hagelin 2000. Lawson English Tucson, Arizona --

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Re: Startup problem
by Michael Rueger 01 Sep '00

01 Sep '00

Bob Arning wrote: > In 2.9, you can use something like: > > WorldState addDeferredUIMessage: [...your code here...]. > > which will run the code in the block as part of the ui process. This permits other processes to interact safely with the world and other morphs. Thanks for the tip! I'll have a look at this together with the port to 2.9. Michael

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Re: Freetype2
by Paul Fernhout 01 Sep '00

01 Sep '00

Mats- Thanks for the great comments. Like so many of the little things needed for a commercial Squeak, this font issue needs to be integrated into the main released image by SqueakC to be generally useful (and this is difficult to do because Squeak isn't modular yet). Most of the effort is in actually making the changes to a specific non-moving release (given that Squeak isn't yet modular). It's not an overly difficult task. For example, (somebody correct me if I am wrong) one just needs to remove the appropriate offending StrikeFont instances and also modify all referencing methods like: ColorTileMorph>>addColorSwatch which includes ... (StrikeFont familyName: #NewYork size: 12). to refer to a replacement loaded fonts. Then one needs to get all the windows redrawn. This assumes we have a definitive list of fonts to remove -- and I'd assume getting rid of both the Apple fonts and the Microsoft fonts would be the safe thing to do. Squeak 2.8 has "NewYork" "Palatino" and "Comic" instances of StrikeFont (in various sizes and styles). [I also saw Helvetica mentioned in on useage of StrikeFont, but I didn't see it in my cursory review of instances.] I assume all would have to go and be replaced. However, there may be other fonts in the image (true type?) I don't know much about. There are lots of people who are interested in fonts more for their own sake. I'm just concerned from a license viewpoint. People who are experts at Fonts and like working with them have done great work already in this area that has not yet become part of the main SqueakC release. For just one example, Jay Carlson's work with X-11 fonts posted at: http://minnow.cc.gatech.edu/squeak/1110 To contrast this font endeavor, anybody willing to put in the (large) effort can sensibly spend time on their own and make a new GUI package or new mail reader and make it available to work with a specific Squeak version. Or alternatively, one can improve existing major subsystems by negotiation with only one or two maintainers. This Font issue is more wide spread, because there are about thirty users of StrikeFont across perhaps a dozen mostly unrelated classes (only about half those references name the fonts). I guess one could make the job easier by having a kludged temporary mapping in StrikeFont of say "ComicBold" to "X11SomethingBold" and then not have to change those other classes at the start. That would make the task more like just modifying a couple of methods in StrikeFont, and then doing the actual load of fonts, and purge of old ones, and release that image to the net as a new 2.9.1. Presumably, I guess that could be done with a patch and some font files, and maybe adding an X11FontReaderClass (Jay Carlson's BDFFontReader) if needed on other than a temportary basis to build the fonts. There are really just a few core things that need to be rewoven throughout the release -- modularity, exceptions, fonts (please not ones reliant on Morphic) and then Squeak can really take off as the rest of the parts can be added by individuals as modules. All are already making progress (slowly). But I think it unrealistic to expect an individual or even a group to do these specific core things outside of SqueakC (given the current state of affairs). Just about everything else, yes. For example, I have in the past offered things like LinksWorld (with undo) or the Pointrel data repository system as Squeak add-ons. These few core things I mentioned would be best done by the core group. Unfortunately, at this point what we have now (to greatly exagerate, admittedly) is in effect the core SqueakC team working on extensions and applications (Morphic, eToy, 3DGraphics, Scripting) and everyone else working on core issues (exceptions, fonts, modularity, block variables). If Squeak was more modular, this inverted approach might work better. But it's not yet. And making Squeak more modular requires making massive core changes -- a Catch 22 (even I think for the Squeak Stable World Tour, but perhaps that will have oompph enough to get past it.) -Paul Fernhout Kurtz-Fernhout Software ========================================================= Developers of custom software and educational simulations Creators of the Garden with Insight(TM) garden simulator http://www.kurtz-fernhout.com Mats Nygren wrote: > > Paul Fernhout <pdfernhout(a)kurtz-fernhout.com> wrote: > > [snip abaout freetype] > > Does anyone else on this list think that removing the original Apple > > fonts should be a priority for 2.9? > > I think the Squeak community will benefit from commercial uses of > Squeak. The demands for rubustness, modularity, performance, communication > with other systems etc. And the addition of more energy from developers. > I hope you will take a lead and do something useful, others will follow. If > removing fonts is what it takes, remove fonts. > > /Mats

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[updates] 7 more for 2.9alpha
by Dan Ingalls 01 Sep '00

01 Sep '00

... as follows ... Enjoy ----------------------- 2552miscFixes-raa -- Bob Arning -- 31 August 2000 - initialize EToySenderMorph with user's name and IP address when taken from new morph menu - fixed walkback when deleting ProjectNavigationMorph from the control menu" 2553CmdHistory-ar -- Andreas Raab -- 31 August 2000 Fixes the command history from a global singular object to a property of the current world. Enables project swapping to work again, disables undo-ing operations in other project etc. 2554VRMLAnimMesh -- Andreas Raab -- 31 August 2000 Enable import and animation of interpolated (VRML) meshes into Wonderlands." 2555nebraskaTransform-raa -- Bob Arning -- 1 September 2000 - fixed Nebraska clipping test to include transformation so that rotated/scaled images will show" 2556SelectionTweak2-di -- Dan Ingalls -- 1 September 2000 Fixes a bug that left pieces of the selection frame visible. 2557PaintBox5-tk -- Ted Kaehler -- 1 Sept 2000 Make the Prototype PaintBox have its shapes palette in the right place. It was detached from the PaintBox." "Postscript: (PaintBoxMorph prototype) toggleStamps; toggleStamps. 2558SelectionTweak3-di -- Dan Ingalls -- 1 September 2000 Causes a selection-in-hand to be properly aligned with the cursor. This makes it simpler to plan where to click down, especially if you wish to draw out the selection upward or to the left.

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[BUG] SoundPlayer
by Bert Freudenberg 01 Sep '00

01 Sep '00

On one of my two Linux boxes, the sound does not play. I did a little more testing, and I see the ActiveSounds collection growing every time a sound is played. But: the boinkScale plays fine. And: after useShortBuffer it plays, although with drop-outs And: When using the old loop (by setting UseReadySemaphore to false in the code) it plays fine. Any ideas? -- Bert

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[BUG] Can't type Cmd or Shift in 2.9Alpha1 VM
by Mark Guzdial 01 Sep '00

01 Sep '00

I just downloaded Squeak2.9a-2551 (Bruce's update, since I haven't been keeping up with the update stream) and dropped it into the 2.9Alpha1 VM that I had downloaded previously. I opened a Morphic project and opened a workspace. At this point, I can only type lowercase letters -- the shift and command keys are ignored. Everything works (I got the PlayBench working), but I can't type capital letters or command-key commands. I drop back into MVC, and everything's fine again. I tried it a couple times, and it's replicable. This is on a G3 Powerbook. I just tried my old 2.8VM, and the problem doesn't exist there. Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 Associate Professor - Learning Sciences & Technologies. Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/ (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

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[ANN] [TOY] Prototype Play-Writing Workbench
by Mark Guzdial 01 Sep '00

01 Sep '00

I showed this to Alan Kay and some of the other SC folk at a meeting, and Alan asked if it was widely available. I meant for it to be, but just didn't get around to posting it yet, so I do so now, a bit belatedly. I built this as a play-writing workbench for my 8 year old. File it in, and do PlayBench new openInWorld (Written in Squeak 2.7, and just tested in 2.9) I've attached a GIF of what it looks like. Type in a name for each of the "actors" (different actors come up randomly), then type in a script (actor: line-to-say on each line). When you click "Play," the actors "read" their lines. FYI I've placed a draft of the chapter in which I build this -- it's the final case study in my book -- at: http://guzdial.cc.gatech.edu/squeakers/ch11-cs-play.doc.pdf Mark Play -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 Associate Professor - Learning Sciences & Technologies. Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/ (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

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Re: [updates] another 5 for 2.9alpha
by Bruce ONeel 01 Sep '00

01 Sep '00

Hi, These changes are in: <ftp://st.cs.uiuc.edu//Smalltalk/Squeak/2.9_alpha/Squeak2.9a-2551.zip> cheers bruce Dan Ingalls <Dan.Ingalls(a)disney.com> wrote: > ... as summarized below... > > --------------------------- > 2547lastEventFix-raa -- Bob Arning -- 31 August 2000 > - update lastEvent in HandMorph>>specialDrag: so that synthesized events will be correct. This fixes the sometimes funky actions of cmd-drag." > > 2548onionFix-raa -- Bob Arning -- 31 August 2000 > - make background of SketchEditorMorph selectable via change color... in the control menu. Default is restored to the previous onion skin." > > 2549longProjMenu-raa -- Bob Arning -- 31 August 2000 > - change world/new morph/make link to project menu so that it segments when too tall" > > 2550betterEmbed-raa -- Bob Arning -- 31 August 2000 > - In certain cases HandMorph may not have an absolutely up-to-date menuTargetOffset (after a green dupe/drag, e.g.). HandMorph>>potentialEmbeddingTargets is enhanced to deal with that, but there may be other places this is also important." > > 2551SelectionTweaks-di -- Dan Ingalls -- 31 August 2000 > Fixes a bug that caused shift-drag of polygon vertices to grow the vertex handles. > Limits group selection to the submorphs of the pasteup in which the selection was begun. > Allows a group selection to be augmented or depleted by secondary selections. > Elides close curve options for lines with only two vertices.

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Re: [BUGS]Re: [Updates] 22 new ones
by Bob Arning 01 Sep '00

01 Sep '00

Karl, A big help would be to run a MessageTally on this: - world/debug.../start MessageTally - select something in the change sorted - when the change sorter is finished updating, move the mouse to the top of the screen Cheers, Bob On Fri, 01 Sep 2000 10:17:52 +0200 Karl Ramberg <karl.ramberg(a)chello.se> wrote: >Dan Ingalls wrote: > >compared to before these updates? How many changeSets do you have? Sluggish to do what? > >-Dan > >This is with a vanilla ( straight from ftp) 2.9a- 2518 image in morphic. >Clicking on for example change set 2424 takes the computer more than a minute to >show the classes. >In MVC it's fast. >The changes file is 16 052 065 bytes long. (15.3 M) > >In 2.8 the change browser works fine in morphic. The changes file here is 9.3 meg. > >I'm on a mac 8500/150 macos 8.6 > >vm 2.8 and vm 2.9a give the same result. > >I gave the vm 50 meg of memory.

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