Beginners November 2008

beginners@lists.squeakfoundation.org

54 participants
49 discussions

SimpleSliderMorph target setting question.
by Torsten Bergmann 21 Nov '08

21 Nov '08

Assuming you have a simple class SecondaryCoil Object subclass: #SecondaryCoil instanceVariableNames: 'turns' classVariableNames: '' poolDictionaries: '' category: 'MyApp' with an instance variable "turns" and an accessor methods #turns to get the value: turns "Returns the turns value" ^turns and another method #turns: to set the value of the instance variable: turns: aNumber "Sets the turns value" turns := aNumber then you can use: |slider coil| slider := SimpleSliderMorph new. coil := SecondaryCoil new. slider target: coil. slider actionSelector: #turns:. slider openInWorld. coil inspect which is easier to write using "method chaining" as |slider coil| slider := SimpleSliderMorph new. coil := SecondaryCoil new. slider target: coil; actionSelector: #turns:; openInWorld. coil inspect Click on the instance variable in the inspector of your coil instance and change the slider. The value gets updated. What's the idea: a slider acts on a target and you tell him to send a message with the given selector name to this target anytime its own value changes. Since the slider will give the sliders value as an argument to the target the selector has to be a method accepting one argument. By default the slider uses values from 0.0 to 1.0 but you can change this if required: |slider coil| slider := SimpleSliderMorph new. coil := SecondaryCoil new. slider target: coil; actionSelector: #turns:; minVal: 0; maxVal: 360; openInWorld. coil inspect You can also provide another method on your new class and use #reportTurns: as action selector: reportTurns: aNumber "Sets the given turns and reports the value" self turns: aNumber. Transcript show: self turns asString. Since your new object is referenced by the inspector window and the slider (who holds it in an instance variable "target") it will not "die" instantly. If you close both of them and your new object instance is not referenced elsewhere it get collected when the garbage collector run. BTW: Note that in Smalltalk you typically use just "turns:" as the methods name for accessors. (setTurns: is more Java style) If you use the Refactoring browser or the OmniBrowser (included in Damiens dev images) you can select an instance variable name (in the class creation expression above) and use the context menu to automatically create the accessor methods for you. Have fun Torsten http://astares.blogspot.com -- Sensationsangebot nur bis 30.11: GMX FreeDSL - Telefonanschluss + DSL für nur 16,37 Euro/mtl.!* http://dsl.gmx.de/?ac=OM.AD.PD003K11308T4569a

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Loading Maui
by Rob Rothwell 20 Nov '08

20 Nov '08

Does anyone have any tips for loading Maui [in, say, a 3.9 based image]? I get all kinds of Magma-looking dependencies when I try to load it... Do I need Magma loaded? Anything else? Thanks, Rob

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Webteam info
by Rob Rothwell 19 Nov '08

19 Nov '08

Is there anyone out there that can pass this on to the Webteam list? I just didn't feel like subscribing to one more list, but I thought that the link to Damien's dev images should be changed. It is currently: http://damien.cassou.free.fr/squeak-dev.html, but should be changed to: http://damiencassou.seasidehosting.st/Smalltalk/squeak-dev Take care, Rob

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Tools flap icon order
by Mark Volkmann 14 Nov '08

14 Nov '08

Is there an easy way to change the order of the buttons on the Tools flap? It seems like they should either be in alphabetical order or in order by how frequently they are used. To my beginner eyes it doesn't seem that either is the case since Browser is at the bottom. --- Mark Volkmann

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How to move World Menu using polymorph
by newsgroups＠netrogue.de 14 Nov '08

14 Nov '08

Hello everybody. Ofcourse I'm new to squeak ;-) I've changed my UI-Theme to 'watery' and have the 'softer' prettier looks now, but I don't know how to put the 'World' Menu up at the top as is in this flickr Image: http://flickr.com/photos/simonnckirk/1213406097/sizes/l/ Also, I'd like to know what I must do to set the transparency of the task bar and the World Menu bar. It looks great the way it is in the image above. I have googled (and on different days - and yes I let it 'sink in'), but I may not have used the correct terms. Any help? Thanks & Regards, Ole. user:newsgroups domain:netrogue.de

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Re: [Newbies] window collapse and remain on world?
by Ken G. Brown 14 Nov '08

14 Nov '08

Thx! Not quite what I want I guess tho. Would actually like to keep the taskbar as well as having an option for minimizing windows to the World. Doesn't look like that's in the cards at the moment however. Ken At 4:00 AM -0800 11/13/08, beginners-request(a)lists.squeakfoundation.org wrote: >Date: Wed, 12 Nov 2008 16:26:21 +0100 >From: rudolf-Rednose <Rudolf-Rednose(a)gmx.de> >Subject: Re: [Newbies] window collapse and remain on world? >To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> >Message-ID: <491AF59D.7060408(a)gmx.de> >Content-Type: text/plain; charset=ISO-8859-1 > >Ken G. Brown schrieb: >> Seems to me it used to be that when you clicked on the little circle at the right on the top bar of an open window, the window would collapse to a small icon on the World showing the window title, usually at the upper left somewhere. Now in sq3.10.2-7179dev08.11.1 it appears this has been replaced by the window collapsing to the task bar at the bottom. I'm not sure at what pint this started working this way. >> >> Is there any way to be able to selectively decide whether you want the window to collapse and remain visible on the world, collapse to the task bar, or perhaps both? >> > >In preference browser search for "taskbar", set showWorldTaskbar to not enabled. >Results in taskbar gone and collapsed windows remain on world. >(maybe see also preference collapseWindowsInPlace for not putting the icon to >upper left somewhere) > >-- Rudolf > >> Thx, >> Ken G. Brown >> _______________________________________________ >> Beginners mailing list >> Beginners(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/beginners > >

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Squeak dies when I click process browser
by farnsworth2008 13 Nov '08

13 Nov '08

I am new to small talk and new to squeak. The first thing I am doing is exploring the user interface by clicking on stuff. Much of what I have seen is very cool and works well but I have also had problems with the system freezing up and becoming unresponsive. The image I am trying to use is: sq3.10.2-7179dev08.11.1.image I tried a couple of other images: sq3.10.2-7179web08.11.1.image SqueakLightII.7212.image In all cases the image freezes up when I try to open the process browser. The system also freezes up at other times. I am using the term "freezes up" to describe the following collection of symptoms: 1) The Mouse pointer moves fine 2) Applications other then the mouse are frozen (i.e. clock stops moving) 3) Dragging stuff around is not working 4) Buttons in all applications are not working Basically the system seems totally frozen at this point such that the only recovery is to shut down squeak and start again. Does the community have any thoughts or tips? -Mark -- View this message in context: http://www.nabble.com/Squeak-dies-when-I-click-process-browser-tp20405723p2… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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window collapse and remain on world?
by Ken G. Brown 12 Nov '08

12 Nov '08

Seems to me it used to be that when you clicked on the little circle at the right on the top bar of an open window, the window would collapse to a small icon on the World showing the window title, usually at the upper left somewhere. Now in sq3.10.2-7179dev08.11.1 it appears this has been replaced by the window collapsing to the task bar at the bottom. I'm not sure at what pint this started working this way. Is there any way to be able to selectively decide whether you want the window to collapse and remain visible on the world, collapse to the task bar, or perhaps both? Thx, Ken G. Brown

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Lint, SwaLint
by pascal.vollmer＠nexgo.de 12 Nov '08

12 Nov '08

Hi, I try to check my code with Lint. I work with damien cassou's Squeak-dev image (sq3.10.2-7179dev08.10.2). Method #1: I use the OB Package Browser and activate Lint by selecting package/open/code critics -result- I get a Lint window saying "All checks on Smalltalk (searching)" and I am not able to select more than one rule neither to let lint analyze my code Method #2: I try to download SwaLint from HPI and load it via Monticello -result- I get a warning window saying "This package depends on the following classes: MultipleSelectionModel" and I do not see right now where to get this class. What is your experience? Does Lint or SwaLint work? Is there anything wrong with the way I apply those tools? I found those tools very helpful in the past and I had them working well in a former image... Regards Pascal Pascal Vollmer Email: pascal.vollmer(a)ieee.org Jetzt komfortabel bei Arcor-Digital TV einsteigen: Mehr Happy Ends, mehr Herzschmerz, mehr Fernsehen! Erleben Sie 50 digitale TV Programme und optional 60 Pay TV Sender, einen elektronischen Programmführer mit Movie Star Bewertungen von TV Movie. Außerdem, aktuelle Filmhits und spannende Dokus in der Arcor-Videothek. Infos unter www.arcor.de/tv

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Pluggable Morphs Demo
by Bruce Prior 10 Nov '08

10 Nov '08

I have been reading Wiki 2962, Pluggable Morphs Demo, but cannot download the associated project file PluggableMorphsDemo-0001.pr. I have tried downloading it with Firefox and with Scamper with no success. If anyone has a copy, please reply to bruce.prior(a)gmail.com. Many thanks.

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Beginners November 2008