Squeak-dev May 1999

squeak-dev@lists.squeakfoundation.org

126 participants
289 discussions

ISO 8859-1 compatibility
by ohshima＠is.titech.ac.jp 09 May '99

09 May '99

Hi, Does anyone have modified the 'NewYork' and 'Comic' fonts which have ISO 8859-1 compatible characters in the "right half" (the characters with 8th bit on) code points? I'm working on m17n of Squeak and I want to my image have such fonts. * * * BTW, I think it's nice if the fonts Squeak uses conform ISO 8859-1 standard. I think one reason Squeak doesn't conform the standard is those fonts have much longer history than the standard:-) And another reason is the choice of internal code of Squeak have been rarely cause any problems. But now Squeak has the mail reader, the web browser, the newsreader: those programs communicate with the non-Squeak environments. If the right-half plane is compatible with some well-known standard, much more people can use Squeak conviniently. And the choice of the standard for the right-half should be ISO 8859-1 in this world. (it supports 14 major languages in Western Europe.) Currently, Squeak uses several characters that have code in the right plane. Fortunately, the number of such character is very small (around twenty) and most of them have valid code point in the ISO 8859-1. So, I think replacing them is not so difficult. The following is a boring list. Read it with much patience if you want to do so. ------------------------------- The characters which have valid code point in the standard include: "MIDDLE_DOT" (Character value: 16rA5) "DOUBLE ANGLE QUOTATION MARK"s (Character value: 16rC7 and 16rC8) "PILCROW SIGN" (Character value: 16rA6) "SECTION SIGN" (Character value: 16rA4). A character (Character value: 16rBB "MASCULINE ORDINAL INDICATOR") is used just as a "sentinel" (to signal non-valid character). (Character value: 16rD7) which is used in two places. It seems to me this character doesn't have the code point in the ISO 8859-1. Virtually this is the only problem. (Character value: 16rD5) is used to avoid double-quote syntax in the string constant. A comment is written in German. And another comment is written in German with French word! (though I think the position of the acute is wrong:-) "COPYRIGHT SIGN" (Character value: 16rA9) is used. It has the same code point in the standard. Just one "Beta" (Character value: 16rA7) is used in the comment in a C source. It seems to me that it was an accident. (Or replace it with eszett? There are several characters which have no valid face are used in comments. (Character value: 16rC3) (Character value: 16rC4). OHSHIMA Yoshiki Dept. of Mathematical and Computing Sciences Tokyo Institute of Technology

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Unix-Source was: Re: Unidentified subject!
by Marcus Denker 09 May '99

09 May '99

On Fri, May 07, 1999 at 10:57:48AM +0200, Alexander Lazarevic wrote: > I still can't connect to Xombul!? > > Resolving Xombul.inria.fr... > Connecting to 128.93.11.18... > Connection attempt timed-out. > > Alex. > There is a mirror at: ftp://ftp.cs.uni-magdeburg.de/pub/Smalltalk/free/squeak/unix/ -- Marcus Denker marcus(a)ira.uka.de fon@home:(0721)614235 @work:(0721)608-2749 "Smalltalk is dangerous. It is a drug. My advice to you would be don't try it; it could ruin your life." -- Andy Bower

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[newbie] help updating, 'selector changed!' warning
by Robert Strachan 09 May '99

09 May '99

I'm having problems updating using the 'update from server' menuItem. I've tried using a virgin 2.4 image and I can't get past 1164projectFlapPref-sw As I'm a newbie I would appreciate a laymans explanation and how to fix this myself the next time, or at least where to look. This is what shows in the window 'selector changed!' Project class(Object)>>error: Project class(Behavior)>>recompile:from: [] in Project class(Behavior)>>compileAllFrom: MethodDictionary>>keysDo: Project class(Behavior)>>selectorsDo: Project class(Behavior)>>compileAllFrom: Project class(Class)>>compileAllFrom: Project class(ClassDescription)>>validateFrom:in:instanceVariableNames:methods:wasPresen t: Project class(Class)>>validateFrom:in:instanceVariableNames:methods:wasPresent: Metaclass>>name:inEnvironment:subclassOf:instanceVariableNames:variable:words:po inters:weak:classVariableNames:poolDictionaries:category:comment:changed:

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RE: [Win32] VM Update
by Raab, Andreas 09 May '99

09 May '99

Reinier, There is no difference in the display handling (in fact there is no difference in running Squeak as a browser plugin or not ;-) There are two factors that may affect display performance though - one being that Squeak just runs in a tiny window (basically VGA 640x480) and naturally, if the display region is smaller there is less work to do. The second one might be that there is nothing on the screen - meaning that there is only one Window (no projects, no other workspaces) and this might slightly affect drawing speed (though I think this is relatively unlikely). Actually, the biggest difference I felt was that of image startup which is definitely due to having the image shrunken before. Andreas -- +===== Andreas Raab ========= (andreasr(a)wdi.disney.com) ==+ | Walt Disney Imagineering Phone: +1 818 544 5016 I I Glendale, CA Fax: +1 818 544 4544 I +======< http://isgwww.cs.uni-magdeburg.de/~raab >========+ > ---------- > From: Reinier van Loon > Reply To: squeak(a)cs.uiuc.edu > Sent: Saturday, May 8, 1999 3:24 AM > To: squeak(a)cs.uiuc.edu > Cc: recipient list not shown > Subject: Re: [Win32] VM Update > > Andreas, > > >* Squeak running in a browser > > Experimental support for basically 'wrapping' Squeak inside a web > browser > > [ Look at http://isgwww.cs.uni-magdeburg.de/~raab/squeak/plugin/ ] > Beautiful. Incredible. Unbelievable. Well done! > > Why is its display handling so much faster than the normal image? > > Thanks for putting the sources in Win32Sources.zip! > > I was working on a HTML browser using a bit of JavaScript (almost > finished) > so that multiple users could be working on 1 image. This plugin does not > change the philosophy but it certainly speeds things up at the client > side. > The next thing we need is an ImageSynchronizer. > > Thanks Andreas, > > I'm having lots of fun now! > > Reinier. > > >

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RE: [Win32] VM Update
by Raab, Andreas 09 May '99

09 May '99

There are no known problems with running any stuff - for experimentation I did run Alice from the Browser (which is kind of funny because one could easily have a scriptable VRML plugin here) and there shouldn't be any problems. The Plugin-VM is just the standard Windows VM without any change at all - the only thing that's been done is placing Squeak into the right window of the browser (which is handled by the plugin DLL/OCX). Andreas -- +===== Andreas Raab ========= (andreasr(a)wdi.disney.com) ==+ | Walt Disney Imagineering Phone: +1 818 544 5016 I I Glendale, CA Fax: +1 818 544 4544 I +======< http://isgwww.cs.uni-magdeburg.de/~raab >========+ > ---------- > From: Laurence Rozier > Reply To: squeak(a)cs.uiuc.edu > Sent: Saturday, May 8, 1999 7:20 AM > To: squeak(a)cs.uiuc.edu > Cc: recipient list not shown > Subject: Re: [Win32] VM Update > > "Raab, Andreas" wrote: > > > * Squeak running in a browser > > Experimental support for basically 'wrapping' Squeak inside a web > browser > > [ Look at http://isgwww.cs.uni-magdeburg.de/~raab/squeak/plugin/ ] > > Wow! The display handling is quite impressive! Just for fun I loaded up a > full > image > and it ran too. Are there known problems with including things - say for > example, > the 3D primitive so we can run Alice? :-) > > Great job! > -Laurence > >

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Obscuring the cursor while you type (revised)
by Bob Arning 08 May '99

08 May '99

The code I offered yesterday for obscuring the cursor while typing had the unfortunate effect of sometimes failing to restore the cursor - quite annoying, really. The code below does a better job. Cheers, Bob ==================filein below=============== 'From Squeak 2.4b of April 23, 1999 on 8 May 1999 at 12:23:58 am'! Cursor subclass: #ObscuredCursor instanceVariableNames: 'previousCursor previousCursorPoint ' classVariableNames: '' poolDictionaries: '' category: 'Graphics-Display Objects'! !Object methodsFor: 'testing' stamp: 'RAA 5/7/1999 12:48'! wantsObscuredCursor ^ false! ! !Cursor methodsFor: 'displaying' stamp: 'RAA 5/8/1999 00:09'! obscureCursorAt: aPoint ObscuredCursor new setPreviousCursor: self previousCursorPoint: aPoint! ! !Cursor methodsFor: 'displaying' stamp: 'RAA 5/8/1999 00:12'! unobscureCursorAt: aPoint "we are not obscured, so do nothing" ! ! !HandMorph methodsFor: 'event handling' stamp: 'RAA 5/8/1999 00:18'! handleEvent: evt eventSubscribers do: [:m | m handleEvent: evt]. "--" (evt anyButtonPressed and: [evt controlKeyPressed and: [lastEvent anyButtonPressed not]]) ifTrue: [eventTransform _ MorphicTransform identity. lastEvent _ evt. ^ self invokeMetaMenu: evt]. evt blueButtonPressed ifTrue: [lastEvent blueButtonPressed ifTrue: [^ self specialDrag: evt] ifFalse: [eventTransform _ MorphicTransform identity. lastEvent _ evt. ^ self specialGesture: evt]]. "--" lastEvent _ evt. self position ~= evt cursorPoint ifTrue: [self position: evt cursorPoint]. evt isMouse ifTrue: [ Sensor currentCursor unobscureCursorAt: evt cursorPoint. evt isMouseMove ifTrue: [^ self handleMouseMove: evt]. evt isMouseDown ifTrue: [ ^ self handleMouseDown: evt]. evt isMouseUp ifTrue: [^ self handleMouseUp: evt]]. evt isKeystroke ifTrue: [ keyboardFocus wantsObscuredCursor ifTrue: [ Sensor currentCursor obscureCursorAt: evt cursorPoint. ]. keyboardFocus ifNotNil: [keyboardFocus keyStroke: evt]. ^ self]. ! ! !ObscuredCursor methodsFor: 'as yet unclassified' stamp: 'RAA 5/8/1999 00:23'! obscureCursorAt: aPoint "we are already obscured, so do nothing"! ! !ObscuredCursor methodsFor: 'as yet unclassified' stamp: 'RAA 5/8/1999 00:08'! setPreviousCursor: aCursor previousCursorPoint: aPoint previousCursor _ aCursor. previousCursorPoint _ aPoint. self show.! ! !ObscuredCursor methodsFor: 'as yet unclassified' stamp: 'RAA 5/8/1999 00:17'! unobscureCursorAt: aPoint aPoint = previousCursorPoint ifFalse: [previousCursor show] ! ! !TextMorphForEditView methodsFor: 'as yet unclassified' stamp: 'RAA 5/7/1999 12:53'! wantsObscuredCursor ^ true! !

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Re: [Win32] VM Update
by Reinier van Loon 08 May '99

08 May '99

Andreas, >* Squeak running in a browser > Experimental support for basically 'wrapping' Squeak inside a web browser > [ Look at http://isgwww.cs.uni-magdeburg.de/~raab/squeak/plugin/ ] Beautiful. Incredible. Unbelievable. Well done! Why is its display handling so much faster than the normal image? Thanks for putting the sources in Win32Sources.zip! I was working on a HTML browser using a bit of JavaScript (almost finished) so that multiple users could be working on 1 image. This plugin does not change the philosophy but it certainly speeds things up at the client side. The next thing we need is an ImageSynchronizer. Thanks Andreas, I'm having lots of fun now! Reinier.

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Squeak on the Web
by Andres Valloud 08 May '99

08 May '99

Hi. IT'S G*R*E*A*T!!! What a Good Thing, Andreas!!! Andres.

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Squeak +IE +Netscape Browser Plugin Changes Everything!
by Peter William Lount 08 May '99

08 May '99

Hi, The Squeak Internet Browser Plugin is an amazing capability that changes everything! Thanks. Thanks. Thanks. Peter William Lount peter(a)smalltalk.org http://www.smalltalk.org

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Re: size of interp.c
by Mark Wai 08 May '99

08 May '99

At 05:40 PM 5/6/99 -0400, you wrote: >interp.c is getting large (~1mb now). While this is no immediate problem, >it is large enough to make code management and development cumbersome; i.e >try scrolling through the popup function list in Metrowerks IDE. Is there >any thought being given to "modularizing" interp.c? >--dick peskin Based on my own experience, I agreed. It was not easy for me(VM implementation newbie) to go through this interp.c due to the modulation issue that Dick mentioned. When I study the VM code in Pocket Smalltalk, quite honestly, it is much easier for me to follow and understand (the VM source is divided into 8 logical components -- GC, memory, etc). I guess partly is the fact that Pocket Smalltalk is much smaller -- but its small size also help me to grasp the core concepts and implementation faster. -- Mark

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