Re: Weird bug -- seen before?

[bill@cambridge.apple.com (Bill St. Clair)]

At  4:09 PM 3/7/94 +0000, Kim Binsted wrote:
>Hi. I didn't find this in the FAQ. Has anyone had this problem before?
>I'm trying to put up windows containing text. The chunks of text may
>vary in size, so I was using default positioning. However, default
>positioning seems to work differently (and strangely) with *slightly*
>different bits of text. For example:

The problem was a bug in (method view-default-size (dialog-item)).
It was neglecting to account for newlines in its width computation
(it did account for them in its height computation). This caused
your static-text-dialog-item to be wider than the dialog, which caused
view-find-vacant-position to punt (could also be called a bug, but
not as severe, so I didn't fix it). Why noone has noticed this before
now, I don't know. I'll send you a patch under separate cover. Anyone
else who wants it, please ask for "view-default-size-patch".

-Bill

>
>(make-instance 'dialog
>  :window-type
>  :document-with-grow
>  :view-font
>  '("Chicago" 12 :srcor :plain)
>  :view-subviews
>  (list (make-dialog-item
>	'static-text-dialog-item
>	nil nil
>"Welcome to PEP.
>If you want to see this screen again,
>click on the 'help' button."
>	nil)
>	(make-dialog-item
>	'static-text-dialog-item
>	nil nil
>"If y
>prefer, please click on the word SCREEN."
>	nil)))
>
>The text in the window is positioned well, ie:
>
>	Welcome to PEP.
>	If you want to see this screen again,
>	click on the 'help' button.
>
>	If y
>	prefer, please click on the word SCREEN.
>
>But if the second piece of text is changed to:
>"If you
>prefer, please click on the word SCREEN."
>
>The second piece writes over the first, ie:
>
>	If you
>	prefer, please click on the word SCREEN.
>	click on the 'help' button.
>
>WHY??!! Nothing else changes, or is changed. I am confused.
>
>Thanks,
>
>Kim.