Beginners May 2006

beginners@lists.squeakfoundation.org

65 participants
84 discussions

[SimpleHierarchaelListMorph]
by Steve Moffitt 09 May '06

09 May '06

This is being forwarded as Hernán is not a member of list. Hi Steve, ListItemWrapper was meant to be subclassed rather than used directly, and as you said its not simple at all. Answering your question what you need to do is to have your own ListItemWrapper class and make it answer to #contents with an OrderedCollection of your item subitem´s ListItemWrapper instances. For a complete example of HierarchicalListMorph you can look how I did it in Jacaranda (look for it in Squeakmap, and in the DiagramOrganization classes). hope it helps. p.s. if you wish you can forward this mail to the beginners list. I am not subscribed. Regards, Hernán On 5/8/06, Steve Moffitt <stevia at citlink.net> wrote: > > Hi -- I sent this to beginners list but didn't get a reply so will > try here. > > Hi all -- and thanks in advance. I'm finding > SimpleHierarchaelListMorph not so simple. I can add items to the list > easily enough if code that follows is anywhere close to being right, > but how would I add a subitem programactically to item 1. > > x := SimpleHierarchicalListMorph > on: [ OrderedCollection with: (ListItemWrapper > with: 'item 1') ] > list: #value > selected: nil > changeSelected: nil > menu: nil > keystroke: nil. > > y := x getList. > y add: (ListItemWrapper with: 'item 2'). > x list: y. > x openInWorld > > I've looked at the examples and still not getting it. > Again thanks, > Steve > > > -- Saludos, Hernán

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Squeak and the Keyboard
by Shawn MacIntyre 09 May '06

09 May '06

I've been playing around in squeak for a few months now and one thing that I find really frustrating is that it appears difficult to figure out what all keyboard shortcuts are, what support there is from the keyboard for editing text, and how to customize it. I have read a number of tutorials but I am still confused. Is there an exhaustive list of keyboard shortcuts? If not, how does one find out what keyboard shortcuts are defined in an image? Are there any packages or support for moving around text with the same speed and ease as vi or emacs? Is there a vi or emacs keys package for squeak? I would love to learn "squeak keys" but from all the documentation I have read, it seems very notepad-ish. Have I completely missed the boat? I use vi and emacs extensively and I love the fact I can customize the way the keys work. How can I do this in squeak? I love the whole browser idea, I just hope I don't have to keep touching my mouse so much when navigating the browser and that when I edit a method, I am able to move quickly around the text without touching the mouse. Thank you and I really appreciate your help, Shawn -- Shawn MacIntyre Edmonton, Alberta, Canada

8 15

complete Newbie
by Chuck Smith 08 May '06

08 May '06

Thanks for the respnse. We will go to etoys. But we are looking for the ability to have the computer actually hear sound not key board input. There is a software program called rossette stone that listen to you speak in a langauge and shows you on a meter how close you are to the correct sounds. For example, if you are learning Japanese as a secound langauge then you can practice your speaking to the computer and it will show you on a meter how good or bad your speech is so you can little bit by little bit work to perfection. I saw this and thought we can do the same for learning to play musical insrtruments. Where is the best place to get help with etoys? I have looked at the website and they have lots of samples and I have gone through the tutorial there. But where do you get more in depth help. I can't seem to find any step by step after the first tutorials. Can you help? Thanks, Chuck Smith

2 1

How to profile a bunch of code
by cdrick 08 May '06

08 May '06

Hi Is it possible to compare methods time execution... I know the possiblity to use Time millisecondsToRun: aBlock but it's not really useful... I've seen a profiler but not really sure... My aim is just to compare for instance the access to an existing dictionary, or creating it with several methods... If you have any hints Thanks... ps: what is a "reasonnable" execution time ?

2 2

complete newbie
by Chuck Smith 08 May '06

08 May '06

Hi, I have a large group of students that along with me have never programed in any langauge. We would like to start learning with squeak and have purchased the bot inc. book. And have started there. Where do we go from here. We would like to write programs that help teach learning to play musical instruments. The program would listen to a player and show on a meter how much they were off by red yellow or green. Would any one be interested in giving us a path that would allow us to learn how to do this? Thanks Chuck Smith

2 1

Re: [Newbies] How to profile a bunch of code
by Frank Urbach 08 May '06

08 May '06

Hi Cèdric, I think the MessageTally is what you are searching for. With MessageTally spyOn: [Block] you get some information about the execution. On top of the result-window you find the execution time. Hope this helps! Cheers Frank Original Message processed by David InfoCenter Subject: [Newbies] How to profile a bunch of code (08-Mai-2006 14:20) From: cdrick <cdrick65(a)gmail.com> To: frank.urbach(a)schmees.com Hi Is it possible to compare methods time execution... I know the possiblity to use Time millisecondsToRun: aBlock but it's not really useful... I've seen a profiler but not really sure... My aim is just to compare for instance the access to an existing dictionary, or creating it with several methods... If you have any hints Thanks... ps: what is a "reasonnable" execution time ?

1 0

[SimpleHierarchaelMorphList]
by Steve Moffitt 07 May '06

07 May '06

Hi all -- and thanks in advance. I'm finding SimpleHierarchaelMorphList not so simple. I can add items to the list easily enough if code that follows is anywhere close to being right, but how would I add a subitem programactically to item 1. x := SimpleHierarchicalListMorph on: [ OrderedCollection with: (ListItemWrapper with: 'item 1') ] list: #value selected: nil changeSelected: nil menu: nil keystroke: nil. y := x getList. y add: (ListItemWrapper with: 'item 2'). x openInWorld Again thanks, Steve

1 0

About nabble
by stéphane ducasse 07 May '06

07 May '06

hi I realized that the admin of the list was not automatically part of the list.... :). I have a question. Someone told me that the beginner list could be read via nabble but I could not find it. Stef

2 4

How to get focus for a TextMorph
by Marcus Pedersén 07 May '06

07 May '06

Hi! How do get the focus to a TextMorph codevise? By focus I mean to get the cursor in my TextMorph when my new window shows up containing my TextMorph. I have tried message cick but that just give me an error on cursorposition. Many thanks! Marcus

1 0

Hi all
by stéphane ducasse 07 May '06

07 May '06

Hi all Do not hesitate to use this mailing list :) Stef

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Beginners May 2006