Beginners April 2007

beginners@lists.squeakfoundation.org

43 participants
56 discussions

(no subject)
by Karim Hariche 10 Apr '07

10 Apr '07

hello, I'd like to stop receiving e-mails from this list, as I don't have time to read so many messages. Thanks Karim ___________________________________________________________________________ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com

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making directory available online
by Navodit Kaushik 10 Apr '07

10 Apr '07

Hi I have a directory containing many files which I want to be able to access over the internet. Ideally I would like this directory to be put up in my squeaksource.com project repository and then anyone having internet access should be able to connect to this directory and retrieve data from the files therein. I am not sure how to go about this in Squeak. Any suggestions? Navodit --------------------------------- Finding fabulous fares is fun. Let Yahoo! FareChase search your favorite travel sites to find flight and hotel bargains.

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Re: Morph Window -> Class? (was: [Newbies] error loading .pr
by Andrew Dabrowski 09 Apr '07

09 Apr '07

> > AD> Would I be correct in thinking that real Squeak developers must not use > AD> the interactive gui-building tools in Squeak because those tools don't > AD> produce results that can be easily packaged? > > that depends what you mean by packaged. > > I packaged means an application you will just deliver an image with > the gui set up the way you want it. Nobody cares how you built that > gui. One drawback of images is that they tend to be quite large. The .pr files are small so that strikes as better way of distributing programs. > > Personally I start with interactively building a gui (often only a > proposal of a gui) and then I switch to code. I understand you to mean that you test out an interface design interactively, but then do start over coding the whole gui from scratch in smalltalk. That's kind of tragic. Squeak is wonderful environment for building things, it shouldn't be necessary still do all the coding of the final product textually. Many WYSIWYG gui builders exist, I would have thought Squeak would be a leader there. I think for my purposes (building simple apps, no ambition to be a professional grade developer) I ought to use the 3.8 image and work with projects. I hope that projects will be supported in later versions of the image.

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Finding all methods available to a class
by Ian Oversby 08 Apr '07

08 Apr '07

How do I find all the methods available to a class? I was looking for a way to output a line-ending and I finally stumbled upon "String crlf" through google. If I find the String class in the System Browser and then use find method by wildcard to list all methods beginning with 'c' it doesn't list crlf. Thanks, Ian

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regd databases and networking in squeak
by Navodit Kaushik 06 Apr '07

06 Apr '07

Hi I am trying to learn more about using databases and using networking in Squeak. Can anyone please suggest some good starting points? For databases, I would be needing to set up a database for my project at squeaksource.com so I am looking for something which would enable that. For networking, I just want to start by learning some basics about how network access works in Squeak. Any pointers would be highly appreciated. Thanks Navodit ____________________________________________________________________________________ Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. http://autos.yahoo.com/green_center/

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saving projects: bad blocks?
by Andrew Dabrowski 04 Apr '07

04 Apr '07

I'm working in 3.8, I've put together a simple morph project with a data class and a gui assembled interactively using mostly TextMorphs and a ScriptableButton. When I try to save it as a project I get the following warning. 'Some block(s) which reference instance variables are included in this segment. These may fail when the segment is loaded if the class has been reshaped. What would you like to do?' If I decide to go ahead a save it anyway, the resulting .pr file does work correctly when I try to load it. It looks right at first, but the button does not do everything it's scripted to do. I'm guessing there is a problem related to the warning above, although the Transcript does not show any error messages. If, after seeing the warning during the project save, I select "and and take a look", I get a window labeled "Error: Here are the bad blocks", but I don't have clue how to use the information there to fix the problem. Any help will be much appreciated.

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Setting up User Accounts and Authentication in Seaside
by Aditya Siram 03 Apr '07

03 Apr '07

Hi all, I would like to use Seaside to give users access to different services. Is there a pre-built user authentication / user permissions package in Seaside? Thanks... Deech _________________________________________________________________ Download Messenger. Join the im Initiative. Help make a difference today. http://im.live.com/messenger/im/home/?source=TAGHM_APR07

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PC World: What do you think is the greatest tech product ever?
by Klaus D. Witzel 03 Apr '07

03 Apr '07

List, it's time again to tell the world, at the bottom of the list on - http://www.pcworld.com/article/id,130277/article.html there is a radio button which is labelled "other" followed by a text box in which you can enter Squeak, Smalltalk and any variant you like (and hit the "vote" button :) Thanx for your help on the marketing front! /Klaius

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Query about Transcript object
by Ian Oversby 03 Apr '07

03 Apr '07

Hi, I wrote the following line of code to display the numbers 1 to 200 in the Transcript Window. 1 to: 200 do: [ :x | Transcript show: x ; cr ]. The numbers are displayed quite slowly and while they are being displayed, I am unable to perform any other action, for example, click on other Windows to raise them to the front or bring up the context sensitive menu. What am I doing wrong? Thanks, Ian

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Re: Morph Window -> Class? (was: [Newbies] error loading .pr
by Andrew Dabrowski 02 Apr '07

02 Apr '07

Thanks again, Edgar. But doesn't the constructorString output omit the scripts associated with the buttons and textMorphs? Would I be correct in thinking that real Squeak developers must not use the interactive gui-building tools in Squeak because those tools don't produce results that can be easily packaged? > > > > El 4/1/07 3:16 PM, "Andrew Dabrowski" <dabrowsa(a)indiana.edu> escribió: > >> Thanks for your reply to my last message. Now I have a follow-up >> question. >> >> If I want to save my project as a .cs file, then I will have to convert >> my gui window (just a systemWindow with some buttons and textMorphs) >> into a proper class that shows up in the browser, correct? That is, my >> window was not coded, but put together interactively by dragging >> supplies out and using the viewer to attach scripts. Is there a way to >> convert the final product into a code format that can be exported in the >> .cs file? >> >> In VisualWorks (which I am also looking at but have not worked with at >> all) there seems to be a way to do this: the InstallOnClass utility. Is >> there something comparable in Squeak? > > Exist a kind of Morph to code, what sometimes lets you export code only. > > Drag and drop the attached morph into your Squeak. > > Open a Transcript whit World menu or via flaps. > > Via halo, open a Inspector of the morph. > In lower pane type : > Transcript show: self constructorString "for seeing what is the code of the > morph." > > You should give: > (((AlignmentMorph newBounds: (0@822 corner: 597@848) color: Color > transparent) setBorderWidth: 1 borderColor: Color black) > addAllMorphs: ((Array new: 7) > at: 1 put: (((SimpleButtonMorph newBounds: (2@824 corner: 76@846) color: > Color green) setBorderWidth: 1 borderColor: (Color r: 0.36 g: 0.719 b: > 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (6@828 corner: 73@843) color: Color > black) contents: 'workspace'))); > at: 2 put: (((SimpleButtonMorph newBounds: (76@824 corner: 146@846) > color: Color yellow) setBorderWidth: 1 borderColor: (Color r: 0.36 g: 0.719 > b: 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (80@828 corner: 143@843) color: Color > black) contents: 'transcript'))); > at: 3 put: (((SimpleButtonMorph newBounds: (146@824 corner: 205@846) > color: Color orange) setBorderWidth: 1 borderColor: (Color r: 0.36 g: 0.719 > b: 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (149@828 corner: 201@843) color: > Color black) contents: 'browser'))); > at: 4 put: (((SimpleButtonMorph newBounds: (205@824 corner: 332@846) > color: Color red) setBorderWidth: 1 borderColor: (Color r: 0.36 g: 0.719 b: > 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (208@828 corner: 328@843) color: > Color black) contents: 'dual change sorter'))); > at: 5 put: (((SimpleButtonMorph newBounds: (332@824 corner: 385@846) > color: (Color r: 0.645 g: 0.0 b: 0.968)) setBorderWidth: 1 borderColor: > (Color r: 0.36 g: 0.719 b: 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (335@828 corner: 381@843) color: > Color black) contents: 'file list'))); > at: 6 put: (((SimpleButtonMorph newBounds: (385@824 corner: 490@846) > color: (Color r: 0.323 g: 1.0 b: 0.613)) setBorderWidth: 1 borderColor: > (Color r: 0.36 g: 0.719 b: 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (388@828 corner: 486@843) color: > Color black) contents: 'message names'))); > at: 7 put: (((SimpleButtonMorph newBounds: (490@824 corner: 595@846) > color: (Color r: 0.323 g: 1.0 b: 0.613)) setBorderWidth: 1 borderColor: > (Color r: 0.36 g: 0.719 b: 0.541)) > addAllMorphs: (Array > with: ((StringMorph newBounds: (493@828 corner: 591@843) color: > Color black) contents: 'archive viewer'))); > yourself)) > > Before you ask, the transcript button need be "reinitialized" when go to new > image. > For doing that, via halo select the button (you need two clicks, one for the > AlignmentMorph and the second for the button, this way you could see Morphs > inside Morphs and act via Inspector) > In the code pane of Inspector type select target as you see in pict. > Type again Transcript and do alt s or command s (for aceppting the change). > Presto, now you have the button working . > > I hope you know now what could export only a morph and not a complete .pr > .... > > Next question ? :=) > > Cheers > > Edgar

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Beginners April 2007