Squeak-dev April 2002

squeak-dev@lists.squeakfoundation.org

195 participants
665 discussions

RE: HV intro (was Re: Squeak SSP-- huh?)
by goran.hultgren＠bluefish.se 04 Apr '02

04 Apr '02

"Stephen Pair" <spair(a)advantive.com> wrote: > > As in SSP one method normally maps to one url and it normally > > builds one page. The method sits in a subclass of HVHttpView > > (which means it has inherited the #builder method etc.). > > Using a single SSP method to build an entire page is not a good idea. Sorry, I just thought that was how it worked. I guessed wrong. > Generally speaking, you should only be creating HTML that is appropriate > for the reciever (in much the same way that you would do with a > #printOn: method). This way, you get the benefits of polymorphism. > > Also, SSP is not an HTML building solution, it's only a text streaming > solution. In Swiki.net we have a whole hierarchy of "web thingies" that > correspond to widgets (i.e a small icon link, large icon link, rollover > button, etc). Each web thingie spits out a little chunk of HTML, > usually using SSP. In this regard, web thingies seem to be similar in > concept to HV. > > - Stephen Ok! My prototyping sofar has mostly used one method - one page, but I am also aiming for components etc. Actually I have already implemented a scheme where you can add builders into a builder forming a (sort of) tree of builders. This means that you can compose pages out of HV components. Probably much like both Seaside and SSP - it is SOOO hard to come up with something really original, isn't it? :-) regards, Göran

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Re: [Connectors] Cool, and how can I...
by Ned Konz 04 Apr '02

04 Apr '02

On Thursday 04 April 2002 08:23 am, Daniel wrote: > Hi, Ned, I've been doing some diagramming using the connectors stuff, > and I find it's really very convinient. I've also finally found a use > for the 'select-group-of-morphs' functionality... together one gets a > pretty convinient graph drawing environment. > > A few question/weird things that happen: > * When I duplicate an arrow (grab by green handle), the grabbed object > appears at a significant offset to the original. This is a bit annoying. > Ah, I just understood, it hands me the first connection point, so I can > start connecting immediately. This is the idea? Yes. You can then drop the first connection point on something. Though duplicate on a connected line doesn't let you drag the line (I'm going to fix it so it disconnects the line, I think; what are your feelings on this?) What would you rather have it do? > * A bit strange maybe, but here's a request - It would be nice to be > able to make an arrow with intermediate links to objects, like this > diagram - there's only one line, with three constraints, one on each > control point. I can show handles on the middle NCConstraint, but I > can't make it stick to anything.. > > ## > ## > ^ > > ## > ## > \ > \ > ## > ## You can make a constraint object with an attached shape. Create a new NCConstraintMorph, attach it to where you want it, and say "add arbitrary shape". It will then copy the shape you select and add it to itself. If you don't mind coding, the NCConstraintMorph (or OffsetConstriantMorph) could have a subclass that moves line vectors around. (is that what you want?). Or maybe I could get the LineEndConstraintMorph to work with other line vertices. I don't know how much work that is. > * A questions that's only somewhat related - I want to store my diagrams > outside the image, maybe in a BSS-like DSS (DanielsSuperSwiki), probably > to be kept internal. Make them separate projects, then just save the projects. > Any better ideas? how do I set up my own SSwiki? I don't know. However, I've had some success using a ComSwiki set up with project pages that make new drawings. One of the reasons I changed from using BlockContexts to MessageSends is so I could get this to work. The nice thing about this is that it allows collaborative work (I don't know what it does about concurrent edits, though). Thanks for the feedback! BTW, what do you think about Connectors and: * orthogonal lines * undo -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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[FIX] CloseBoxInMenu-nk
by Ned Konz 04 Apr '02

04 Apr '02

This fixes problems with the informUserAt:during: from preamble: "Change Set: CloseBoxInMenu-nk Date: 2 April 2002 Author: Ned Konz Changes: 2 April: * Made height of title bar the same height as the window title bars 31 Mar: * Changed font to regular window title font. * Made balloon help only appear if novice mode. This changes the stay-up look of titled MenuMorphs to more closely match the style of the SystemWindows. Morphic only. "!

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Re: how to mix scripting with coding?
by Volker Nitsch 04 Apr '02

04 Apr '02

Hi Scott, Scott Wallace <scott.wallace(a)squeakland.org> wrote: > Hi, Volker, > > If you want the textual source you have modified and accepted in a > Scriptor to prevail, leave that Scriptor in textual-source mode, > don't switch it back to tiles. > > If you subsequently switch a Scriptor back to tiles mode, the last > tiles code gets reinstalled and your textual changes will be lost. > Ok, now i use two methods, one "handmade" with code and one for scripting, which calls the handmade (cheap to restore ;). > Starting with update 4815, you're given a warning and a chance to > change your mind in such a situation. Update 4815 applies equally to > 3.3a and 3.2g, but perhaps has not yet been externalized to the > public servers. > i'm using 3.0 because its called stable and i'm a beginner.. ;) > If this reply is not directly addressing your concerns, please write > again with further clarification. hmm, i hoped there is an easy way to expose handmades to scripting-tiles. something like an description array for a class with the tile-descriptions and the substitution-code. Starting with scripting and then learning how to make own tiles by code is kind of a meta-toy :) Also, have etoys inheritance? So one could split the car-control in speed and turning and then keep speed-script but override turn-script? > > Cheers, > > -- Scott > > At 4:06 PM +0100 4/3/02, Volker Nitsch wrote: > >Hi all. Now i have this wonderfull etoy-car running, > >and can switch to source-code, but not change there > >(scripting-box overwrites). > >how can i mix scripting with coding? > > > >Volker

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Loading actors into Wonderland Squeak 3.2gamma
by Stephan B. Wessels 04 Apr '02

04 Apr '02

I see that the loading of actors is still broken. Didn¹t Steve Gilbert report that the change set ³MDLReadFix of 16 October 2001² broke reading even the old style model files? Just wondering if it¹s been fixed and I don¹t have the patch or if this needs more investigation. - Steve

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[Connectors] Cool, and how can I...
by danielv＠netvision.net.il 04 Apr '02

04 Apr '02

Hi, Ned, I've been doing some diagramming using the connectors stuff, and I find it's really very convinient. I've also finally found a use for the 'select-group-of-morphs' functionality... together one gets a pretty convinient graph drawing environment. A few question/weird things that happen: * When I duplicate an arrow (grab by green handle), the grabbed object appears at a significant offset to the original. This is a bit annoying. Ah, I just understood, it hands me the first connection point, so I can start connecting immediately. This is the idea? * A bit strange maybe, but here's a request - It would be nice to be able to make an arrow with intermediate links to objects, like this diagram - there's only one line, with three constraints, one on each control point. I can show handles on the middle NCConstraint, but I can't make it stick to anything.. ## ## ^ | ## ## \ \ ## ## * A questions that's only somewhat related - I want to store my diagrams outside the image, maybe in a BSS-like DSS (DanielsSuperSwiki), probably to be kept internal. Any better ideas? how do I set up my own SSwiki? thanks for the lovely connectors Daniel

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[ENH] IRCEnhancements-sbw - updated to not use scrollbars in small input panes
by swessels＠one.net 04 Apr '02

04 Apr '02

from preamble: "Change Set: IRCEnhancements-sbw Date: 28 February 2002 Author: Stephan B. Wessels GENERAL NOTES: The existing IRC cllient has been left alone and a subclassed client was created. For background IRC protocol information please see http://www.irchelp.org/irchelp/rfc/. See (IRCConnectionEnhanced releaseNotes) for a workspace window containing all release notes. Key new features include: A new user interface having one console window per connection and then having all console messages, channel messages and private messages contained inside the main console window using tabbed swapped panes. Support was added for /WHOIS and /ACTION from the channel chat windows. Other windows do not have complete support for these commands yet. The channel messages text, private messages text, and console messages text panes are read-only. This allows you to put the cursor over either the input pane at the bottom or the actual text pane and begin typing. The input text you type is sent only to the input pane at the bottom. Copy and Find operations are still possible with the read-only text pane content. You can jump to a channel from the channels listing pane by one ot two techniques. First you can select a channel from the produced list. Second, you can use the Prompted Channel button and be asked for the name of a channel you want to join. The channel name does not need to appear in the list. Further a check is made against the channel name you enter and a # is prefixed if you left it off. The console Connect button indicates the state of the connection. It highlights in a color to indicate that you are connected. The label of the button also changes to Disconnect once you are connected. If your connection drops by itself, for some reason, the button color shows another color to indicate it was dropped and the button text is changed to Connect. The Channels list pane is a multi-column pane. The Refresh button also changes color to indicate that a refresh is active. A channel refresh action can take a while so the tag of the Refresh button also attempts to update with an indication of the number of channels fetched so far as an indicator of progress. The channel chat input pane performs Nick Completion. Anywhere on the input text line you are typing you can begin to type a few characters from the beginning of a channel Nick and hit the tab key. This will complete the nick tag for you. If there is more than one Nick that begin with the same characters, the tab key will rotate through them for you. You can also do Nick Completion multiple times on the same line of text. A leading tab on a channel chat input line is invalid and ignored. Also empty input lines are ignored. Highlilght your transmitted messages in the channel chat pane with a color. Also, messages that have your nick in them on the channel chat pane will be highlighted in another color. /ACTION is supported from the channel chat input. You can type in a command like /action looks around room and that message will be sent as an ACTION message to the channel. All ACTION messages are highlighed in the channel chat text pane in italics. The channell chat pane is formatted into 2 columns. The left most column is the nick and the next column to the right shows the typed text. New server configuraton dialogs. Includes the ability to tailor options while connected. Modification of connection parameters for the current session is prohibited while connected. Connection Profiles are supported. You can specify a unique set of connection parameters for any session and save them in a list. The options you select when you create a new profile are those of the current profile. Added a built-in table of many IRC servers you can choose from with a dialog window. You mayhave multiple console sessions open at the same time, each having a unique IRC server connection. The title of the console window reflects the basic parameters of that connected session. Added support for roll back/forward of previously typed text. Use the up and down arrow keys to scroll through text lines. /WHOIS command sends response from the server to your channel chat window now. Only sends private message to the Provate pane that are NOT already being sent to another private messages pane. That is, if you have a private messages pane open the responses there are no longer duplicated in the Private Messages window. Tabbed channel text and private chat panes have their tabs highlighted if messages appear there while you have another pane in front. You can use this feature to watch for activity on a channel or private chat. Channel member JOINS and PARTS are now logged to the channel chat text. There are options to disable this. An option is provided that supported INVITE requests. When you get an INVITE request to join another channel this option will allow automatic opening of that channel then adding you to the members there. An option is provided that automatically opens up a private chat window if you receive an unsolicitied private message. This can include server messages and NICKSERV messages. Added support for multiple line input to a channel and private chat pane. This allows you to know PASTE into a channel. Channel members are now listed in a logical order. Channel operators are at the top, followed by +voiced channel members and then normal members. Also, the nicks for operators are shown in red on the channel members list and the voiced members are show in another color. Added support for the /CLEAR command to console, private chat and channel chat windows. /CLEAR will clear the contents of the text pane. This command is not sent to the IRC server of course. Added /INSPECT to console, private and channel chat input pane commands. This will cause a Squeak Inspector to open up on the model for that text pane. Support provided for NICK change messages receieved from the IRC server. /NICK command is now supported from the channel chat input pane. Revisions History: (-n is change set revision number up until -41, when code was published). Entries made after that are by release date. Most recent at top. 4-Apr-2002 Took some advice from Ned Konz and made the small input panes to not have scrollbars. 30-mar-2002 Fixed a problem with the the multicolumn lists logic that impacted the email program Celeste. The problem does not exist in Celeste unless this program is also installed. This update fixes both. 11-mar-2002 #3 Cosmetic stuff. 11-mar-2002 #2 Moved TabbedSwappingControl to Morphic-Palettes system category. Renamed the change set. 11-mar-2002 #1 Channel chat user list menu is now context sensitive. Generalized communications paths software. Now have support for /ACTION command issued from a private message pane. There is a remaining issue with SERVER messages getting lost. 10-mar-2002 #2 Fixed a race condition when processing private IRC messages. The symptom was double lines of text appearing when a new window was first opened if created by an external private message send. The size of the looping collection was changing while it was being processed. More cosmetic tweaks. 10-mar-2002 #1 Code factoring around messages sends. This work is not complete but represents a first pass at new code paths. Fixed problem where channel users list was not getting updated if the case of the selected channel did not match the actual channel name EXACTLY. In IRC channel names are case in-sensitive. Some interesting cosmetic touches. Invite didn't update all panes the first time the channel window opened. Support of rcvd ACTION messages in private message windows. Note that /ACTION commands are not formatted properly in the display. Received ones are shown correctly. Private chat page had overlap on text and input panes. Added support for WHOIS in private chat window. Private message chat that opens up a new window shows the first line of text twice. 7-mar-2002 Added /EXPLORE as valid command. Mode change detection was buggy. Consequently there were problems identifying all operators and members having voice in a channel. Ordering of channel members is now case insensitive. 6-mar-2002 #1 Bug in editing a profile name was fixed. Added logging of commands in the console. Incorrectly setting our nick any time someone changes theirs. Oops. 5 mar 2002 #4 Added button to profiles dialog that saves the current configuration as a new profile. 5 mar 2002 #3 Server based messages that are posted to channel chat panes are now aligned with the columns of other member base chat traffic. 5 mar 2002 #2 More tweaks to the multi column headered morph so that headers show up even when the list is empty. Mode changes noted in channel chat now show NICK of person that initiated the mode change (+/- voice/op). 5 mar 2002 #1 Fixed a bug where profile names could be mismatched from the keys used to store them. Factored the release notes into 3 editable strings. One for features enumeration, one for revisions history and a to-do list. Added some utility functions that make it easier to produce a new change set preamble that agrees with the release notes. Fixed a bug in the multicolumn header morph where it would try to draw headers before the list contents where known. Channels pane redesign of layout. 4 mar 2002 Added provision to edit an existing profile. Also added provision for user to change the server selected from the profile dialog. -41 (published 4 mar 2002) Fixed a bug pointed out by Bijan Parsia. Thanks. -40 Problem with post load initializer. -39 Trim blanks around any added profile name. Generate better initial profile names from server names. Cosmetics. -38 Extended multi column list morph with a new morph PluggableMultiColumnListMorphByItemWithHeader used in the profiles selection dialog. This morph provides multi-column ability with a built-in header row. Disable active editing of configuration while connected. Profiles are working. Note that the current options are copied into any new profile you create.-37 Factoring of message sending code. Still needs more cleanup in that code. Made options available on a per connection basis. Each connection can have their own unique options. When you open up a new console window from the World menu the options are set to the defaults. When you open up a new console from the New Console button the options from the existing console window are copied forward to the new one. Added support for Profiles. A Profile contains a nick, server, and options which can be used for initializing a connection. Profiles management for the user are not coded yet. -36 Factoring. -35 Handles nick change messages received from IRC server. Also properly handles /whois and /nick changes initiated from channel window. -34 Fetch of channels list shows update count while fetching. Detect when IRC server fails to send channel list because of server loading. -33 fixed problem parsing PART messages from some servers Generalized the reserved keywords (CLEAR, INSPECT) to be included in any IRC input pane (console, channel or private messages). -32 Support /CLEAR in channel chat window. Added support for /INSPECT too. -31 Fixed some bugs with mode changes in channels Fixed problem with connection dialog/setup window after being collapsed. Better factoring of TabbedSwappingControl morph. Lots of factoring in IRCConnectionEnhanced. -30 Fixed bug in servers populate code. -29 Show channel member names in logical order with color highlighting for operators and voiced members. Detected mode changes that impact member status. Fixed bug where PART messages were being sometimes sent to the wrong channel pane. -28 Fixed problem with post load initializer where populated servers database was empty. -27 Bug fix in paste/copy code for channel text. -26 Handle multiple line inputs, such as can come from a paste operation. -25 Cosmetics in text messages from server. Added close option to channel text menu. Command keys work from the channel and console text panes now. -24 Change set maintenance. -23 Fixed problem where new private messages were not causing the tab to update. Open up a chat window pane for private messages we receive except for from server. Member channel joins, parts and quits are now shown in the channel window panes. Support INVITE requests. Added Options pane to Setup dialog. Factored out most of the swap/tabbed pane into a new pane design used in the Config dialog. -22 minor code factoring. -21 /ACTION messages supported in channel chat. -20 Added support for /WHOIS command to channel chat windows and users menu. -19 Added rollback of messages to console window pane. Fixed bug in private chat window where ""me"" was still being used as nick for outgoing messages. Fixed places where we were using asLowercase instead of asIRCLowercase. Stop sending private messages to private messages redundantly pane if there is already a private chat window open to get them. Factored sound messages for possible future enhancement. -18 Since we can now have multiple consoles open on different IRC servers, the title of the window now reflects the connection. Rollback of previously typed text. Fixed the bug where there was a delay before channel members were displayed. -17 Redesign of the ""population/status"" pane. First hooks put into place to add support for find/copy etc from keyboard in the channel text pane. Keys are not mapped yet. -16 New server configuration dialog allows choices from many possible IRC servers. Added a built intable of several known IRC servers. -15 Dropped the ""me"" designations for the real nick. Factored all the colors into IRCClientColors class. It's not as nice as a having color preferences management, but you can edit them all in one place. An extension would be to allow storing and loading of customized colors without code changes. Highlight transmitted messages in a color, and highgllight recived messages that contain our nick in a color. Highlight ACTION message responses with italic. Channel chat pane breaks nicks into column before messages. Fix problems with automatic nick completion. It used to take more than 1 TAB key hit to get started, and you could not embed TABs in the text line if they were not part of nick search. Also, you could not begin a line with a tab. In the case where someone types a tab in the first column and there are no characters to match against a nick, treat it like someone is typing indented text. -14 Nick completion. We trap the TAB key and rotate through nicks. -13 bug fixes and more cosmetic tweaks -12 bug in menu for channel chat pane fixed. added menu to private chat panes. cosmetics to the population counter pane. -11 Removed connect button from setup dialog. Ensured that setup window could not be closed if edits were not accepted. Indicate if the connection was dropped by color change in connect button. Reconnect channels and private chats that were open if the user connectd after a dropped connection. -10 added some edit menu functions to the readonly chat pane. added menu to user list in chat pane. selected channels button will bring existing channels window into focus if already defined. on manual disconnect, close the closeable tabs to avoid later conflicts. made the users status pane (population: x) read only. cleanup the borders and pane background colors for the user list in the chat pane. cleanup the borders and pane background colors for the channel buttons. private message windows have the same focus properties as the channel browsers. Input goes to the input pane. made console pane readonly and again used the input pane to catch focused keystrokes. replaced console menu with one more appropriate since functions from old menu are now buttons. show channel list refresh is busy by way of button colors. removed special button from channels pane. -9 Better connect/disconnect detect and indication. Release the channel listeners when we close a tabbed pane. Handle rotate left/right of tab panes. -8 Opening up a private chat pane now becomes the active tabbed pane. Highlight the tabbed panes that see messages while you have another pane in front. Check for missing # in front of prompted channel names. -7 detect socket drop and change connect button state to indicate what happened. Fixed missing when someone parted from a channel. -6 bugs fixed -5 new provision for closing tabbed panes. Only specific panes can be closed. Also added buttons to move pane tabs left and right but nothing implemented to support those features yet, -4 more clean up of little bugs -3 clean up of change set contents. -2 fixed problem with send of private messages. Input pane was not constructed properly -1 general release NEED TO DO: (or would be nice to do) These are in no special priority order. - cleanup code to add class methods defining new constants for commands I have added. - mIRC colored text - logging - DCC send/recv - PING response for server timeout? Verify this mechanism is working right. I occasionally get disconnects and think this may be why. - add 401 no such nick/channel to channel feedback - /away needs to be supported - disconnect does not close private message panes "!

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Lego Mindstorm and Squeak
by Bergel Alexandre 04 Apr '02

04 Apr '02

Hello, I have finally make a little web page about my work with lego mindstorm. It works fine, but... I need help for getting out of my troubles with serial port. LegoMindstorm on Squeak here : http://minnow.cc.gatech.edu/squeak/2412 Do not hesitate to inform me about your comment... Best Regards, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._ Bergel Alexandre http://www.iam.unibe.ch/~bergel ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^

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[FIX][hack]NewParagraph problem
by Torge Husfeldt 04 Apr '02

04 Apr '02

Hi Joseph, As you can see from the subject line this is not really a fix to the problem you stated a while ago. This is just aimed at making the symptoms disappear. It doesn't bring us any nearer to a real solution. There is one thing zou can do to investigate further: you can activate the conditional halt in #positionWhenComposed and then poke around in the debugger a bit. If we can't find a hint in your code or make it go away by trying different VMs/images, somebody who can reproduce this might have to dig deeper into this. If the variable really gets nilled out outside the smalltlalk code that "officially" affects it then a debugger or tracer might be needed (I'm thinking of a modified MethodTracer that logs the value of this variable here). HTH Torge 'From Squeak3.2alpha of 1 November 2001 [latest update: #4646] on 4 April 2002 at 2:02:14 pm'! !NewParagraph methodsFor: 'display' stamp: 'th 4/4/2002 13:56'! displayOn: aCanvas using: displayScanner at: somePosition "Send all visible lines to the displayScanner for display" | visibleRectangle offset leftInRun line | visibleRectangle _ aCanvas clipRect. offset _ somePosition - self positionWhenComposed. leftInRun _ 0. (self lineIndexForPoint: visibleRectangle topLeft) to: (self lineIndexForPoint: visibleRectangle bottomRight) do: [:i | line _ lines at: i. self displaySelectionInLine: line on: aCanvas. line first <= line last ifTrue: [leftInRun _ displayScanner displayLine: line offset: offset leftInRun: leftInRun]]. ! ! !NewParagraph methodsFor: 'private' stamp: 'th 4/4/2002 14:00'! positionWhenComposed "This is a dirty hack to prevent a bug that nils out this variable to cause a walkback" "Just fill the variable with some old Point value that might work" positionWhenComposed ifNil: [ false ifTrue:[self halt]. ^ positionWhenComposed _ container topLeft]. ^positionWhenComposed! ! !TextOnCurve methodsFor: 'as yet unclassified' stamp: 'th 4/4/2002 13:58'! moveBy: delta positionWhenComposed _ self positionWhenComposed + delta. container _ container translateBy: delta! !

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Re: I can't create a category
by goran.hultgren＠bluefish.se 04 Apr '02

04 Apr '02

Ken Causey <ken(a)ineffable.com> wrote: > Perhaps you are right. So much changes so quickly in Squeak that I > would like to be able to live a little closer to the edge just so I can > try to keep up. It's not really necessary for what I'm doing right now > though and so I will step away from the precipice. At the same time, I > think a little effort could be spent to make this particular problem a > little more manageable, it seems to me that creating a new category is a > very basic procedure. Even just having 'add item' pop up a text message > pointing to a URL with a quick howto would be better than the current > situation. Your question has already been answered on this list recently - search any archive (they are listed on the Swiki). In short: - 3.2alpha is ALPHA. It means that it can bite you hard and noone will feel sorry for you since if you are in there then you need to read up and bite the bullet. My advice is go for 3.2gamma instead. - The browser has not been updated to be in synch with the new modules scheme and the message you got simply means "Sorry, not done yet, working on it". It's much better than crashing right? - Categories will probably go away in the modules system - this is actually the essence of the problem. And I think this has been documented on the Swiki (not sure though). Read about how to create modules instead - that is what you really want to do. Forget the categories. Perhaps a quick fix to this would be to just remove that damn menu choice. ;-) Just kidding... regards, Göran

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