Beginners October 2009

beginners@lists.squeakfoundation.org

24 participants
19 discussions

Is there a tandard way to attach context menus
by Herbert König 04 Nov '11

04 Nov '11

Hello all, is there a standard way to attach a context menu to a morph? It's fairly easy to do by checking for yellowButtonPressed and manually firing up a MenuMorph. But it is sufficient to implement #addCustomMenuItems:hand: to get an enhanced Halo menu while #addYellowButtonMenuItemsTo:event: and #hasYellowButtonMenu don't help. So is there a predefined way without everybody doing his own? Thanks, Herbert mailto:herbertkoenig@gmx.net

2 1

Omnibrowser help
by Rob Rothwell 14 Aug '11

14 Aug '11

Are there some tips/documentation somewhere on getting the most out of the OmniBrowser? The MulitpleSelection browser looks interesting (sort of like the tabbed browser in VisualWorks), but I don't quite understand its behaviour and what method it decides to show in which pane when you move around or save changes. On the same topic, can anyone point me toward how I could add a new item to the class context menu in the OmniBrowser? I want to add a new template selection menu item (like "new class template" and "new trait template") because I have created a method that creates TWO classes at the same time for an Aida application (A domain model class AND its associated WebApp class). Thanks, Rob Rothwell

4 11

Resources with Monticello
by Matthias Korn 15 Apr '10

15 Apr '10

Hi all, how does one work with resources (e.g. image files (GIFs, ...)) used in the application when working with Monticello and in general? Right now I have them on my hard drive and they are read live into Squeak when they are needed. Of course, others don't have the files at hand when working in a distributed fashion. What are the best practices in regard of distribution/packaging as well as performance? Thanks, Matthias -- Matthias Korn Institut für Wirtschaftsinformatik Fachbereich 5 Universität Siegen Telefon: +49 (0) 271 / 23 67 660 Mobil: +49 (0) 176 / 700 17 17 8 Uni: +49 (0) 271/ 740 - 3382 eMail: matthias.korn(a)uni-siegen.de

4 8

Vista compatibility
by Christine Wolfe 31 Oct '09

31 Oct '09

I am using Squeak on a Vista PC. When I have Squeak open and switch to another window, after about 2 minutes, Squeak crashes and brings up the Emergency Evaluator. The information in the evaluator dump doesn't reference any of my code but I realize it still could have been something I was running that triggered it. This happens when I have my System browser open and it doesn't matter whether or not I have any morphs displayed in world. I haven't tried switching with the System browser closed. Has anyone else had this trouble? The error message at the top of the Emergency Evaluator stack is: "Error: a primitive has failed." CSW

2 5

Drawing a line on a morph
by Christine Wolfe 31 Oct '09

31 Oct '09

If anyone has followed the dice example in Chapter 11 of Squeak By Example you will recognize that I'm trying to build a variation of the dice. The difference is that I am trying to draw figures on the faces instead of dots. What I am trying to do is have a group (array, set, collection?) of "faces" on a rectangle - sort of like a child's building block with an image on each of the faces. I want 1 face to be blank, one to have a line, one to have a diamond, and one to have a rectangle. In the dice example, they draw dots on the faces but I think I can use the same logic to draw lines on the faces. I've pasted what I tried to the end of this post but I'm open to other ways to do it. I can't even get a simple line to draw on the face of the rectangle. You can see that I tried to have the "face" methods send a pair of points that define the ends of the line and have drawLineOn draw a line between the points. Any help or advice will be greatly appreciated. In the dice example they use: BorderedMorph subclass: #DieMorph instanceVariableNames: 'faces dieValue isStopped' classVariableNames: '' poolDictionaries: '' category: 'SBEexamples' and drawOn: aCanvas super drawOn: aCanvas. (self perform: ('face', dieValue asString) asSymbol) do: [:aPoint | self drawDotOn: aCanvas at: aPoint] and drawDotOn: aCanvas at: aPoint aCanvas fillOval: (Rectangle center: self position + (self extent * aPoint) extent: self extent / 6) color: Color black. and face1 ^{0.5(a)0.5} And face2 ^{0.25(a)0.25 . 0.75(a)0.75} I tried: BorderedMorph subclass: #MyMorph instanceVariableNames: 'faces dieValue isStopped' classVariableNames: '' poolDictionaries: '' category: 'SBEexamples' and drawOn: aCanvas super drawOn: aCanvas. (self perform: ('face', dieValue asString) asSymbol) do: [{:aPoint, anotherPoint} | self drawLineOn: aCanvas from: aPoint to: anotherPoint] and drawLineOn: aCanvas from: aPoint to anotherPoint aCanvas line: aPoint to: anotherPoint width: 2 color: Color black. and face1 ^{{2@2, 2@10}, {2@2, 10@2}, {10@10, 2@10}, {10@10, 10@2}} And face2 ^{{5@5, 5@7}, {5@2, 7@2}, {7@7, 5@7}, {7@7, 7@5}}

3 5

Re: Beginners Digest, Vol 42, Issue 11
by Alan Turing 30 Oct '09

30 Oct '09

Than you very much for your suggests! :) 2009/10/30 <beginners-request(a)lists.squeakfoundation.org>: > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. hello (Alan Turing) > 2. Re: hello (David Mitchell) > 3. Drawing a line on a morph (Christine Wolfe) > 4. Re: Closure support (Andy Burnett) > 5. Re: Closure support (Randal L. Schwartz) > 6. Re: hello (Alex Schenkman) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 30 Oct 2009 15:27:47 +0100 > From: Alan Turing <aabbcbbaa(a)gmail.com> > Subject: [Newbies] hello > To: beginners(a)lists.squeakfoundation.org > Message-ID: > <36cb79140910300727y1ebc086eif99c67d1445837c7(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > > I am new in smalltalk and squeak. > In this language what is the right way to learn smalltalk/squeak? I am > reading a ebook of Ducasse "learn programming with robots" and it > seems good for begin. Anyway, after this book I would like make > something for manage networks and database; what resource may I use? > > thanks. > > > max > > > ------------------------------ > > Message: 2 > Date: Fri, 30 Oct 2009 10:31:52 -0500 > From: David Mitchell <david.mitchell(a)gmail.com> > Subject: Re: [Newbies] hello > To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> > Message-ID: > <8bc830730910300831u60f087a7v179c3f766d5eeb02(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Max, > > Steph's book is a nice way to learn programming. I'm actually using his bots > environment as part of a presentation I'm doing this coming Saturday at the > Iowa Code Camp in Des Moines. > > Steph has a great list of free Smalltalk books on his site. On that is a > little dated but is an excellent read is known as the NuBlue book by Mark > Guzdial: > > http://www.amazon.com/Squeak-Open-Personal-Computing-Multimedia/dp/01302809… > > You can actually review a draft of the chapters of that book from Steph's > site. There is one chapter in particular by Bijian Parsia, Lex Spoon (of > Programming Scala fame), and Bolot Kerimbaev: > > http://coweb.cc.gatech.edu/squeakbook/uploads/parsia.pdf > > Good luck > > --David > http://www.withaguide.com > > > > On Fri, Oct 30, 2009 at 9:27 AM, Alan Turing <aabbcbbaa(a)gmail.com> wrote: > >> Hi, >> >> I am new in smalltalk and squeak. >> In this language what is the right way to learn smalltalk/squeak? I am >> reading a ebook of Ducasse "learn programming with robots" and it >> seems good for begin. Anyway, after this book I would like make >> something for manage networks and database; what resource may I use? >> >> thanks. >> >> >> max >> _______________________________________________ >> Beginners mailing list >> Beginners(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> >

1 0

Re: Beginners Digest, Vol 42, Issue 11
by Mark Dymek 30 Oct '09

30 Oct '09

a great introduction to squeak is squeak by example. And best of all it's free!!! Sent from my iPod On Oct 30, 2009, at 12:25 PM, beginners-request(a)lists.squeakfoundation.org wrote: > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. hello (Alan Turing) > 2. Re: hello (David Mitchell) > 3. Drawing a line on a morph (Christine Wolfe) > 4. Re: Closure support (Andy Burnett) > 5. Re: Closure support (Randal L. Schwartz) > 6. Re: hello (Alex Schenkman) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 30 Oct 2009 15:27:47 +0100 > From: Alan Turing <aabbcbbaa(a)gmail.com> > Subject: [Newbies] hello > To: beginners(a)lists.squeakfoundation.org > Message-ID: > <36cb79140910300727y1ebc086eif99c67d1445837c7(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > > I am new in smalltalk and squeak. > In this language what is the right way to learn smalltalk/squeak? I am > reading a ebook of Ducasse "learn programming with robots" and it > seems good for begin. Anyway, after this book I would like make > something for manage networks and database; what resource may I use? > > thanks. > > > max > > > ------------------------------ > > Message: 2 > Date: Fri, 30 Oct 2009 10:31:52 -0500 > From: David Mitchell <david.mitchell(a)gmail.com> > Subject: Re: [Newbies] hello > To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> > Message-ID: > <8bc830730910300831u60f087a7v179c3f766d5eeb02(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Max, > > Steph's book is a nice way to learn programming. I'm actually using > his bots > environment as part of a presentation I'm doing this coming Saturday > at the > Iowa Code Camp in Des Moines. > > Steph has a great list of free Smalltalk books on his site. On that > is a > little dated but is an excellent read is known as the NuBlue book by > Mark > Guzdial: > > http://www.amazon.com/Squeak-Open-Personal-Computing-Multimedia/dp/01302809… > > You can actually review a draft of the chapters of that book from > Steph's > site. There is one chapter in particular by Bijian Parsia, Lex Spoon > (of > Programming Scala fame), and Bolot Kerimbaev: > > http://coweb.cc.gatech.edu/squeakbook/uploads/parsia.pdf > > Good luck > > --David > http://www.withaguide.com > > > > On Fri, Oct 30, 2009 at 9:27 AM, Alan Turing <aabbcbbaa(a)gmail.com> > wrote: > >> Hi, >> >> I am new in smalltalk and squeak. >> In this language what is the right way to learn smalltalk/squeak? I >> am >> reading a ebook of Ducasse "learn programming with robots" and it >> seems good for begin. Anyway, after this book I would like make >> something for manage networks and database; what resource may I use? >> >> thanks. >> >> >> max >> _______________________________________________ >> Beginners mailing list >> Beginners(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> >

1 0

Re: [Newbies] Closure support
by Andy Burnett 30 Oct '09

30 Oct '09

Randal said... <<With classic smalltalk 80 and Squeak: a := (1 to: 10) do: [:n | [n]]. b := a collect: [:each | each value]. b will have something like #(10 10 10 10 ...). The problem is that the :n in each block ([n]) is shared as one variable. In a true closure, which modern Squeak and Pharo provide, we get the proper #(1 2 3 4 ... 10). That's because each apperance of "n" is "closed" with respect to the newly created block.>> Thanks for explaining the difference between blocks and closures. I think I new understand that. And, your example raised a new question for me. What does the inner 'block' in [:n | [n]] actually do? Out of curiosity I tried changing it to [:n | [n*10]], expecting the numbers to be ten times bigger, but they were stil 1, 2, 3... I also tried removing the whole block, and b still evaluated to the same values. Cheers Andy

3 2

hello
by Alan Turing 30 Oct '09

30 Oct '09

Hi, I am new in smalltalk and squeak. In this language what is the right way to learn smalltalk/squeak? I am reading a ebook of Ducasse "learn programming with robots" and it seems good for begin. Anyway, after this book I would like make something for manage networks and database; what resource may I use? thanks. max

3 2

How to adjust the default browser window size?
by Paul DeBruicker 29 Oct '09

29 Oct '09

Hi - How can I change the default class browser window size in Squeak? Thanks Paul

2 1

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

Beginners October 2009