Smalltalk › Pharo › Pharo Smalltalk Users

Beginner of smalltalk 80 - first graphic windows and GUI - need help

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

3 messages Options

Hans Schueren

Beginner of smalltalk 80 - first graphic windows and GUI - need help

To whom it may concern ,

may i ask for some help about standard graphic routines ?

As a beginner i just have learned all the first level SYNTAX of
smalltalk 80.

Now , you can imagine , i am interested in writing little GUI windows
and graphics for

placing some text in the right positions.

Theese are the statements i have studied from my material.

Does anybody know why the statements not work?

Are there any "replacements" for the syntax that i posted here as example ?

Have a nice day

HERE ARE THE EXAMPLES :

| window |
window := ScheduledWindow new.
window component: 'Hello World' asComposedText.
window open

| window |
window := ScheduledWindow new.
window label: 'Fenster ohne Inhalt'.
window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
window open

displayOn: aGraphicsContext
1 to: 10 do:
[:i|
aGraphicsContext translation printString
asComposedText displayOn: aGraphicsContext.
aGraphicsContext translateBy: 15 @ 15]

Greetings

Hans
The Byte Surfer

Clément Béra

Re: Beginner of smalltalk 80 - first graphic windows and GUI - need help

Hello,

I don't really know how to answer.

Are your examples really from smalltalk-80 ? Were they running on the Xerox-D microcoded machine ? Because I don't think there are anymore smalltalk-80 available right now, nor machine that can run it. There's a smalltalk-78 running on javascript on the web but that's a bit different.

Here you're on the Pharo mailing list, which is a smalltalk which has evolved during 35 years starting from smalltalk-80, so it's quite different from smalltalk-80 right now (for example, closures and exceptions were added, support for modern computers too).

To use window as you are doing something like that works:

| window |

window := StandardWindow new.

window title: 'Hello World' .

window open

However nowadays people use frameworks to build UIs in Pharo, not such APIs. So it depends what you want to do.

2014-11-26 14:16 GMT+01:00 Hans Schueren <[hidden email]>:

To whom it may concern ,

may i ask for some help about standard graphic routines ?

As a beginner i just have learned all the first level SYNTAX of smalltalk 80.

Now , you can imagine , i am interested in writing little GUI windows and graphics for

placing some text in the right positions.

Theese are the statements i have studied from my material.

Does anybody know why the statements not work?

Are there any "replacements" for the syntax that i posted here as example ?

Have a nice day

HERE ARE THE EXAMPLES :

| window |
window := ScheduledWindow new.
window component: 'Hello World' asComposedText.
window open

| window |
window := ScheduledWindow new.
window label: 'Fenster ohne Inhalt'.
window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
window open

displayOn: aGraphicsContext
1 to: 10 do:
[:i|
aGraphicsContext translation printString
asComposedText displayOn: aGraphicsContext.
aGraphicsContext translateBy: 15 @ 15]

Greetings

Hans
The Byte Surfer

jfabry

Re: Beginner of smalltalk 80 - first graphic windows and GUI - need help

In reply to this post by Hans Schueren

Hello Hans,

the standard way to build GUIs using Pharo is to use Spec. I suggest you have a look at the documentation of Spec online, do the tutorial and then you can start experimenting. The easiest way to see the Spec documentation is here: https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSuccessfulBuild/artifact/Spec/Spec.pier.html

On Nov 26, 2014, at 10:16 AM, Hans Schueren <[hidden email]> wrote:

> To whom it may concern ,
>
>
> may i ask for some help about standard graphic routines ?
>
> As a beginner i just have learned all the first level SYNTAX of smalltalk 80.
>
> Now , you can imagine , i am interested in writing little GUI windows and graphics for
>
> placing some text in the right positions.
>
>
> Theese are the statements i have studied from my material.
>
>
> Does anybody know why the statements not work?
>
> Are there any "replacements" for the syntax that i posted here as example ?
>
> Have a nice day
>
>
>
>
> HERE ARE THE EXAMPLES :
>
>
>
>
> | window |
> window := ScheduledWindow new.
> window component: 'Hello World' asComposedText.
> window open
>
>
>
>
> | window |
> window := ScheduledWindow new.
> window label: 'Fenster ohne Inhalt'.
> window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
> window open
>
>
>
>
> displayOn: aGraphicsContext
> 1 to: 10 do:
> [:i|
> aGraphicsContext translation printString
> asComposedText displayOn: aGraphicsContext.
> aGraphicsContext translateBy: 15 @ 15]
>
>
>
>
> Greetings
>
>
> Hans
> The Byte Surfer
>
>

---> Save our in-boxes! http://emailcharter.org <---

Johan Fabry - http://pleiad.cl/~jfabry
PLEIAD lab - Computer Science Department (DCC) - University of Chile