Beginners March 2008

beginners@lists.squeakfoundation.org

66 participants
66 discussions

Re: [Newbies] Squeak in commercial projects
by Giuseppe Luigi Punzi Ruiz 07 Mar '08

07 Mar '08

In adittion: Disable Programmer Facilities: http://wiki.squeak.org/squeak/518 Squek Swiki is down at this moment for me at least.

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[Election 2008] All answers collected in the Q&A, and 32 HOURS LEFT TO VOTE!
by goran＠krampe.se 07 Mar '08

07 Mar '08

Hi all Squeakers! I just added Andrew's and Edgar's answers (in the nick of time!) to the Q&A swiki page: http://wiki.squeak.org/squeak/6029 It is a long page, but if you want to get a grip on the candidates IMO it is quite useful. Now... it's only circa 32 hours left to vote (if I calculated it correctly) and we have: - 435 authorized voters that have been sent ballots. - 153 votes so far! The first number is good but the second is scary. People, remember to VOTE before time runs out! regards, Göran PS. If you are registered on SqP (people.squeakfoundation.org) with a ranking Apprentice or higher AND have a correct email in that account - you SHOULD have received a ballot. If you haven't - then email me in private and I will help you.

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GraphViz doesn't load in squeak-dev image?
by polishookm 07 Mar '08

07 Mar '08

Dear Friendly Place, I downloaded an image, changes, and source from ftp://ftp.ofset.org/squeak/squeak-dev and started Squeak with the 3.0 VM that comes with the Squeak download on www.squeak.org In squeak-dev, I go to Welcome/optionalPackages (in the Script Manager). Next I select the package and version for GraphViz and press the install button and nothing happens. Then I open up a basic universe browser from the World menu and navigate to the GraphViz package. When I try to install it, it first loads assorted prerequisites. And then it stalls at the actual load of GraphViz with the attached error messages. Am I missing something? Thanks in advance, Mark

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Arrays?
by David Zmick 07 Mar '08

07 Mar '08

I have an array of SmallIntegers, and I need to multiply each object in the array by the next. Each object is a factor, and i need to get to the final number, then store that number in a variable and display it on the transcript. display array do: [:in| self num: num * in. ]. Transcript cr; show: 'The factors are: '; show: stream contents; cr. Transcript show: 'The final number is: '; show: num; cr. the stream is on the array -- David Zmick /dz0004455\ http://dz0004455.googlepages.com

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Headless Squeak on Redhat - HELP!
by albegadeep 06 Mar '08

06 Mar '08

Bert Freudenberg: Bingo! I disabled warnIfNoChangesFile, warnIfNoSourcesFile, and auto update, and it started working. Looks like those modal dialogs were preventing the image from starting up. Hmm... I wonder if there's a way I can get them enabled when I load in Windows and not in Linux... something in my existing startup routine, I think. Thank you very much for your help! ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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Re: Parse an argument for a symbol that requires one
by Marcus Strehlow 04 Mar '08

04 Mar '08

Hi Jerome, With the help of Jeroen earlier on, I have been able to complete this task. His approach is very similar to yours though. The short version is, that I am trying to create my own Unix operating system, which comes with a user interface that is entirely written in Squeak, and therefore Smalltalk. This particular question was aimed at an obstacle I was facing while creating methods and operations for a Pulldown menu that I wrote for my UI. When a menu entry is clicked, an variable needs to be changed into a new value, which is why that one method requires an argument you see. Here is a screenshot which shows you the Open File window, for which this question originally was. http://www.se51.net/img/cosmos/csmsOpenFileWithPulldown_Big.jpg More screens of the project http://www.se51.net/index.php?page=cosmos-currentshots And what it is. http://www.se51.net/index.php?page=cosmos-about Thanks again, Marcus -- iMac -- 20 inch -- Core 2, 2 GHz -- 1 GB RAM -- Superdrive -- Mac OS X Leopard 10.5.2 MacBook -- 13.3 inch -- Core 2, 1.83 GHz -- 1.5 GB RAM -- Combodrive -- Mac OS X Leopard 10.5.2 iMac G5 -- 17 inch -- PPC G5 1.8 GHz -- 1 GB RAM -- Superdrive -- Mac OS X Leopard 10.5.2 iPod touch -- 16 GB -- Software Upgrade -- OS X 1.1.4 On 4 Mar 2008, at 09:05, beginners-request(a)lists.squeakfoundation.org wrote: > Hi Marcus > > To get the best help, please describe the user story. > What are you trying to do? > > > You can give buttons arguments: > myButton target: aTarget . > myButton actionSelector: #someAction: . > myButton arguments: Array with: myArgument . > (You have to change #arguments: when ever the > argument changes.) > > or you can use blocks as targets > > myButton target: [ aTarget someAction: myArgument ] > actionSelector: value . > > where myArgument could be something like > (FillinTheBlank request: 'Eh wot Marcus?') > > > This all seems a difficult way to achieve something. > Which is why I mention telling the story first. Then > it might be seen if what you want is better achieved > some other way. > > Yours in curiosity and service, --Jerome Peace

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Re: Parse an argument for a symbol that requires one
by Marcus Strehlow 04 Mar '08

04 Mar '08

Hi Jeroen, with your tip I have been able to accomplish what I needed. Thanks for your help! Marcus -- iMac -- 20 inch -- Core 2, 2 GHz -- 1 GB RAM -- Superdrive -- Mac OS X Leopard 10.5.2 MacBook -- 13.3 inch -- Core 2, 1.83 GHz -- 1.5 GB RAM -- Combodrive -- Mac OS X Leopard 10.5.2 iMac G5 -- 17 inch -- PPC G5 1.8 GHz -- 1 GB RAM -- Superdrive -- Mac OS X Leopard 10.5.2 iPod touch -- 16 GB -- Software Upgrade -- OS X 1.1.4 On 4 Mar 2008, at 09:05, beginners-request(a)lists.squeakfoundation.org wrote: > Marcus, > > I was curious about this, so i went and got this to work: (notice > the ':' in > show:) > > b := ScriptableButton new openInWorld. > b target: Transcript. > b actionSelector: #show:. > b arguments: (Array with: 'test'). > > > HTH > -Jeroen

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Random turn by
by Joe Barr 04 Mar '08

04 Mar '08

I'm trying to write a script with a Something turns by x + random(y) as I see in some of the examples, but I am never able to enter random, it just tells me that's not a number. What am I doing wrong? -- Resistance is not futile, it's (2PI * FREQ * L) / Q

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random turn by
by Daniel Yepes 04 Mar '08

04 Mar '08

Could you post the code that you are using? Daniel

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Re: [Newbies] Headless Squeak on Redhat - HELP!
by Michael Berg 04 Mar '08

04 Mar '08

Hi, unfortunately I can't help. But I'd like to take the chance to maybe get an answer to a similar problem. I got a virtual server running with a Suse 9.3 Linux. Usually there's no X11 installed (but I tried so some month ago, just to see whether this helps with my problem). I never got Squeak running headless. I always get a segfault. I tried it with different vm, I think the current one is compiled from svn. Compiling the vm and all that works. Now today upon that mail I tried it again and it looked a bit more promising, but still I don't get it running. On my local Linux I got no such problems, even though this usually makes more trouble due to being a 64bit machine. Now, if I use the default image, installed with inisqueak in some directory and try to start it with squeak -vm display=none I get the following output (I was already quite happy about that in an awkward way as usually I see much less :) > Segmentation fault -2127939548 BalloonEngine>copyLoopFaster -2127939640 BalloonEngine>copyBits -2127939748 BalloonEngine>postFlushIfNeeded -2127950376 BalloonEngine>drawRectangle:fill:borderWidth:borderColor:transform: -2127950516 BalloonCanvas>drawRectangle:color:borderWidth:borderColor: -2127950620 BalloonCanvas>fillRectangle:fillStyle: -2127950712 FormCanvas>balloonFillRectangle:fillStyle: -2127950804 FormCanvas>fillRectangle:fillStyle: -2127950896 Canvas>fillRectangle:fillStyle:borderStyle: -2127953216 Morph>drawOn: -2127953356 Canvas>draw: -2127953496 Canvas>drawMorph: -2127954232 [] in Morph>fullDrawOn: -2127953772 >roundCornersOf:on:in:displayBlock:borderWidth:corners: -2127955628 FormCanvas>roundCornersOf:in:during: -2127956676 Canvas>roundCornersOf:during: -2127966424 Morph>fullDrawOn: -2127966576 Canvas>fullDraw: -2127966668 Canvas>fullDrawMorph: -2128162608 [] in WorldState>drawWorld:submorphs:invalidAreasOn: -2128163356 Rectangle>allAreasOutsideList:startingAt:do: -2128163700 Rectangle>allAreasOutsideList:do: -2128162860 [] in WorldState>drawWorld:submorphs:invalidAreasOn: -2128163792 SequenceableCollection>do: -2128163608 WorldState>drawWorld:submorphs:invalidAreasOn: -2128163884 [] in WorldState>displayWorld:submorphs: -2128163976 FormCanvas>roundCornersOf:in:during: -2128164068 Canvas>roundCornersOf:during: -2128164160 WorldState>displayWorld:submorphs: -2128164252 PasteUpMorph>privateOuterDisplayWorld -2128164344 PasteUpMorph>displayWorld -2128164804 [] in WorldState>displayWorldSafely: -2128164436 BlockContext>on:do: -2128164620 BlockContext>ifError: -2128164928 WorldState>displayWorldSafely: -2128165056 WorldState>doOneCycleNowFor: -2128165172 WorldState>doOneCycleFor: -2128165264 WorldState>doOneSubCycleFor: -2128165356 PasteUpMorph>doOneSubCycle -2128166624 MVCMenuMorph>invokeAt:in:allowKeyboard: -2128168720 [] in PopUpMenu>startUpWithCaption:icon:at:allowKeyboard: -2128168628 BlockContext>ensure: -2128168812 Cursor>showWhile: -2128168904 PopUpMenu>startUpWithCaption:icon:at:allowKeyboard: -2128168996 PopUpMenu>startUpWithCaption:icon:at: -2128169124 PopUpMenu>startUpWithCaption:icon: -2128169224 >inform: -2128169316 MorphicUIManager>inform: -2128169408 Object>inform: -2128170148 >openSources:andChanges:forImage: -2128170284 SmalltalkImage>openSourceFiles -2128170412 >startUp -2128170504 Behavior>startUp: -2131946412 [] in SystemDictionary>send:toClassesNamedIn:with: -2131946568 OrderedCollection>do: -2131946660 SystemDictionary>send:toClassesNamedIn:with: -2131946820 SystemDictionary>processStartUpList: -2132131900 SmalltalkImage>snapshot:andQuit:embedded: -2132131992 SmalltalkImage>snapshot:andQuit: -2132132084 TheWorldMenu>saveAndQuit -2132132176 TheWorldMenu>doMenuItem:with: -2132132452 [] in MenuItemMorph>invokeWithEvent: -2132132360 BlockContext>ensure: -2132132544 Cursor>showWhile: -2132132636 MenuItemMorph>invokeWithEvent: -2132132728 MenuItemMorph>mouseUp: -2132132820 MenuItemMorph>handleMouseUp: -2132132952 MouseButtonEvent>sentTo: -2132133044 Morph>handleEvent: -2132133136 MorphicEventDispatcher>dispatchDefault:with: -2132133228 MorphicEventDispatcher>dispatchEvent:with: -2132133320 Morph>processEvent:using: -2132133412 MorphicEventDispatcher>dispatchDefault:with: -2132133520 MorphicEventDispatcher>dispatchEvent:with: -2132133652 Morph>processEvent:using: -2132133744 Morph>processEvent: -2132133836 MenuMorph>handleFocusEvent: -2132134112 [] in HandMorph>sendFocusEvent:to:clear: -2132134020 [] in PasteUpMorph>becomeActiveDuring: -2132134204 BlockContext>on:do: -2132134296 PasteUpMorph>becomeActiveDuring: -2132134480 HandMorph>sendFocusEvent:to:clear: -2132134572 HandMorph>sendEvent:focus:clear: -2132134664 HandMorph>sendMouseEvent: -2132134808 HandMorph>handleEvent: -2132135064 HandMorph>processEvents -2132134972 [] in WorldState>doOneCycleNowFor: -2132135156 SequenceableCollection>do: -2132135248 WorldState>handsDo: -2132135340 WorldState>doOneCycleNowFor: -2132135432 WorldState>doOneCycleFor: -2132135524 PasteUpMorph>doOneCycle 2146741432 [] in >spawnNewProcess 2146741616 [] in BlockContext>newProcess ----------------------------------- using as command squeak -headless I get > Segmentation fault -2126831928 UndefinedObject>? 2142441752 ByteSymbol>? Speicherzugriffsfehler ------------------------------------------ if I use the sq3.9-7067web07.12.1 image, where I initially tried to start VNC in order to use the image once running remotely I get with squeak -vm display=none sq3.9-7067web07.12.1.image the following > Segmentation fault -2128125960 UndefinedObject>? 2138702056 SmallInteger>? Speicherzugriffsfehler --> memory access error ------------------------------------------- but with squeak -headless sq3.9-7067web07.12.1.image I get again the one from above with -vm display=none and the other image. Which doesn't make too much sense to me as -headless is supposed to equal -vm display=X11 -headless, what would make sense to not work correctly as I either don't have it installed or at least not working correctly. > Segmentation fault -2126644792 BalloonEngine>copyLoopFaster -2126644884 BalloonEngine>copyBits -2126644992 BalloonEngine>postFlushIfNeeded -2126655620 BalloonEngine>drawRectangle:fill:borderWidth:borderColor:transform: -2126655760 BalloonCanvas>drawRectangle:color:borderWidth:borderColor: -2126655864 BalloonCanvas>fillRectangle:fillStyle: -2126655956 FormCanvas>balloonFillRectangle:fillStyle: -2126656048 FormCanvas>fillRectangle:fillStyle: -2126656140 Canvas>fillRectangle:fillStyle:borderStyle: -2126658460 Morph>drawOn: -2126658600 Canvas>draw: -2126658740 Canvas>drawMorph: -2126659476 [] in Morph>fullDrawOn: -2126659016 >roundCornersOf:on:in:displayBlock:borderWidth:corners: -2126660872 FormCanvas>roundCornersOf:in:during: -2126661920 Canvas>roundCornersOf:during: -2126671668 Morph>fullDrawOn: -2126671820 Canvas>fullDraw: -2126671912 Canvas>fullDrawMorph: -2126868152 [] in WorldState>drawWorld:submorphs:invalidAreasOn: -2126868900 Rectangle>allAreasOutsideList:startingAt:do: -2126869244 Rectangle>allAreasOutsideList:do: -2126868404 [] in WorldState>drawWorld:submorphs:invalidAreasOn: -2126869336 SequenceableCollection>do: -2126869152 WorldState>drawWorld:submorphs:invalidAreasOn: -2126869428 [] in WorldState>displayWorld:submorphs: -2126869520 FormCanvas>roundCornersOf:in:during: -2126869612 Canvas>roundCornersOf:during: -2126869704 WorldState>displayWorld:submorphs: -2126869796 PasteUpMorph>privateOuterDisplayWorld -2126869888 PasteUpMorph>displayWorld -2126870348 [] in WorldState>displayWorldSafely: -2126869980 BlockContext>on:do: -2126870164 BlockContext>ifError: -2126870472 WorldState>displayWorldSafely: -2126870600 WorldState>doOneCycleNowFor: -2126870716 WorldState>doOneCycleFor: -2126870808 WorldState>doOneSubCycleFor: -2126870900 PasteUpMorph>doOneSubCycle -2126872168 MVCMenuMorph>invokeAt:in:allowKeyboard: -2126874264 [] in PopUpMenu>startUpWithCaption:icon:at:allowKeyboard: -2126874172 BlockContext>ensure: -2126874356 Cursor>showWhile: -2126874448 PopUpMenu>startUpWithCaption:icon:at:allowKeyboard: -2126874540 PopUpMenu>startUpWithCaption:icon:at: -2126874668 PopUpMenu>startUpWithCaption:icon: -2126874768 >inform: -2126874860 MorphicUIManager>inform: -2126874952 Object>inform: -2126875796 >openSources:andChanges:forImage: -2126875932 SmalltalkImage>openSourceFiles -2126876076 >startUp -2126876168 Behavior>startUp: -2130652076 [] in SystemDictionary>send:toClassesNamedIn:with: -2130652232 OrderedCollection>do: -2130652324 SystemDictionary>send:toClassesNamedIn:with: -2130652484 SystemDictionary>processStartUpList: -2130837564 SmalltalkImage>snapshot:andQuit:embedded: -2130837656 SmalltalkImage>snapshot:andQuit: -2130837748 TheWorldMenu>saveAndQuit -2130837840 TheWorldMenu>doMenuItem:with: -2130838116 [] in MenuItemMorph>invokeWithEvent: -2130838024 BlockContext>ensure: -2130838208 Cursor>showWhile: -2130838300 MenuItemMorph>invokeWithEvent: -2130838392 MenuItemMorph>mouseUp: -2130838484 MenuItemMorph>handleMouseUp: -2130838616 MouseButtonEvent>sentTo: -2130838708 Morph>handleEvent: -2130838800 MorphicEventDispatcher>dispatchDefault:with: -2130838892 MorphicEventDispatcher>dispatchEvent:with: -2130838984 Morph>processEvent:using: -2130839076 MorphicEventDispatcher>dispatchDefault:with: -2130839184 MorphicEventDispatcher>dispatchEvent:with: -2130839316 Morph>processEvent:using: -2130839408 Morph>processEvent: -2130839500 MenuMorph>handleFocusEvent: -2130839776 [] in HandMorph>sendFocusEvent:to:clear: -2130839684 [] in PasteUpMorph>becomeActiveDuring: -2130839868 BlockContext>on:do: -2130839960 PasteUpMorph>becomeActiveDuring: -2130840144 HandMorph>sendFocusEvent:to:clear: -2130840236 HandMorph>sendEvent:focus:clear: -2130840328 HandMorph>sendMouseEvent: -2130840472 HandMorph>handleEvent: -2130840728 HandMorph>processEvents -2130840636 [] in WorldState>doOneCycleNowFor: -2130840820 SequenceableCollection>do: -2130840912 WorldState>handsDo: -2130841004 WorldState>doOneCycleNowFor: -2130841096 WorldState>doOneCycleFor: -2130841188 PasteUpMorph>doOneCycle -2146931528 [] in >spawnNewProcess -2146931344 [] in BlockContext>newProcess I hope this is just a silly error on my side. Maybe somebody can help me. Thanks for any help. Michael > -----Ursprüngliche Nachricht----- > Von: "A friendly place to get answers to even the most basic questions about Squeak." <beginners(a)lists.squeakfoundation.org> > Gesendet: 04.03.08 03:36:03 > An: beginners(a)lists.squeakfoundation.org > Betreff: [Newbies] Headless Squeak on Redhat - HELP! > > I have a small (P3) server running Redhat, and I'm > trying to get Squeak running on it. Since there's no > monitor, and the graphics subsystem isn't started in > the usual runlevel, I need to run Squeak headless. > > I put image and change file into a directory (read, > write, owned by user A) that should copy a couple of > files when run, using Smalltalk addToStartUpList: > MyClass. I load it up in Windows, and it works fine. > > I load it in Linux: > [root@myserver A]# squeak -headless > > The cursor goes to the next line, and nothing happens. > > Any idea what's going wrong? How do I correct it? I > will happily furnish any other info or troubleshooting > that is needed. > > THANK YOU! > Albegadeep > > > ____________________________________________________________________________________ > Be a better friend, newshound, and > know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > --

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Beginners March 2008