fxruby users - Sep 2006 - A problem about updating an FXRuby program layout recursively

Dear all,

I have a design question: assume we have an FXText field containing
a sentence

The <best> Ruby version is the current one.

with "best" highlighted, and there is a choice of words

| most wonderful |, | cutest |, | most effective |

to replace "best". To do the replacement, I want to just click on any
of
three buttons. I want to iterate through all of the words of the sentence and I
only know the choice of words for replacement at runtime.
Now, if I click on the | most wonderful | - button, I want to have
a sentence

The most wonderful version of <Ruby>  is the current one.

i.e., "best" gets changed to "most wonderful", the next word
Ruby gets highlighted,
and there should be a choice of buttons of words replacing "Ruby",
like

| the computing language invented by Matz |,

which should be shown instead of

| most wonderful |, | cutest |, | most effective |.

I have written a method with a lot of evals in it, which calls itself, when the
user
clicks on a button, and updates its arguments (move to the next word etc.)
to do the trick of updating the buttons, but I can only show the first set of
buttons and replace the first word - the new buttons
for the next set of replacement words don''t appear.
I rather randomly tried to call "app.update, app.recalc" etc., but
none worked.


What am I missing ?

Thank you very much

Best regards

Axel 
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On Sep 22, 2006, at 3:17 PM, Axel Etzold wrote:
> I have written a method with a lot of evals in it, which calls  
> itself, when the user
> clicks on a button, and updates its arguments (move to the next  
> word etc.)
> to do the trick of updating the buttons, but I can only show the  
> first set of buttons and replace the first word - the new buttons
> for the next set of replacement words don''t appear.
> I rather randomly tried to call "app.update, app.recalc" etc.,
but
> none worked.
>
> What am I missing ?
Are you actually constructing a new FXButton each time? If so, you  
need to call create() on the button to realize it, e.g.

	new_button = FXButton.new(p, "Button Label", ...)
	new_buttton.create

Note that a preferable approach (if I understand what you''re doing)  
is to just re-use the existing buttons, and change their label text,  
e.g.

	old_button.text = "New Label for an Old Button"

Hope this helps,

Lyle