Allso this https://gforge.inria.fr/frs/download.php/10764/BotsInc-OriginalEnglish.pdf

Karl

On Mon, Jul 4, 2011 at 10:47 PM, Stephen Woolerton sdw2@shineonline.co.nzwrote:

• how would one display a text label and a text field and obtain input

...

...

from the text field (am thinking of Morphic)

   name := UIManager default request: 'Enter your name'.
   Transcript show: name; cr.

Thank you - this is exactly what I was looking for - the simplest way of

getting input.

However, IMHO this is *not* the best way to introduce Squeak programming

...

to beginners. It mimics procedural programming in a console.

I fully agree with you. The reason is that there are external criteria

which we have to meet. The criteria requires keyboard input, and personally have only used Squeak for Seaside projects so didn't know how to do this simple thing :-)

Instead, just open a Workspace and begin evaluating expressions. There

...

doesn't have to be a "program". In fact, there is no "main". Just send messages to objects.

   3 + 4
   1234 / 56
   100 factorial
   'foo bar' asUppercase

Then, make a Morph and send it messages. Evaluate each line individually to see its effect.

   joe := Morph new.
   joe openInWorld.
   joe position: 100@100.
   joe color: Color red.

Thanks again.

Stephen

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On Tuesday 05 Jul 2011 2:17:52 AM Stephen Woolerton wrote:

...

However, IMHO this is not the best way to introduce Squeak programming to beginners. It mimics procedural programming in a console.

I fully agree with you. The reason is that there are external criteria which we have to meet. The criteria requires keyboard input, and personally have only used Squeak for Seaside projects so didn't know how to do this simple thing :-)

You may find the Terse Guide to Squeak at http://wiki.squeak.org/squeak/5699 helpful for your course. UIManager tip appears near the end.

If you notice any course requirement missing in this guide, please post a request for update here. Thanks.

HTH .. Subbu

On 05.07.2011, at 01:44, Stephen Woolerton wrote:

...

Then, make a Morph and send it messages. Evaluate each line individually to see its effect.

joe := Morph new. joe openInWorld. joe position: 100@100. joe color: Color red.

I'm running Pharo 1.2.1 and hope you can help in this list. Am running Mac OS X 10.6.7.

I can't see how to get halos so that I can remove morphic objects I've created. Also, if I click Ctrl-Click on an object, I get a context menu, however choosing delete doesn't delete the Morph. I can inspect the object via Morph/ImageMorph/PasteUpMorph.

Also System/Settings/Appearance/Morphic/Halo doesn't have anything that helps either.

Should I be running Squeak if I want to use Morphic?

Yes.

- Bert -

On Mon, 4 Jul 2011, Bert Freudenberg wrote:

On 04.07.2011, at 09:45, Stephen Woolerton wrote:

...

Hi all,

We wish to use Squeak/Smalltalk for a beginner programming course and require the simplest way to get keyboard input.

First of all:-

• is there a way in Squeak to get console input (analogous to system.in, in Java)? Line input would be ideal, rather than character by character.

There is a way, but it is complicated, platform-dependent, and very rarely used. Squeak provides its own user interface, the command line interface is only used for e.g. server apps.

Since Squeak 4.2 there's support for standard input/output via FileStreams. There was a bug with stdout (MultiByteFileStream's line ending conversion), but it's already fixed in the Trunk. All recently released VMs (except for the interpreter VM on Windows) support this. Reading the next line from stdin is as simple as:

FileStream stdin nextLine

Levente

...

• how would one display a text label and a text field and obtain input from the text field (am thinking of Morphic)

name := UIManager default request: 'Enter your name'. Transcript show: name; cr.

However, IMHO this is *not* the best way to introduce Squeak programming to beginners. It mimics procedural programming in a console.

Instead, just open a Workspace and begin evaluating expressions. There doesn't have to be a "program". In fact, there is no "main". Just send messages to objects.

3 + 4 1234 / 56 100 factorial 'foo bar' asUppercase

Then, make a Morph and send it messages. Evaluate each line individually to see its effect.

joe := Morph new. joe openInWorld. joe position: 100@100. joe color: Color red.

From there I'd continue with inspectors and explorers. Squeak by Example is an excellent source for further exploration:

http://squeakbyexample.org/

• Bert -

---

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