Scroll-wheel scrolling of areas...

[CarlRead]

Hi all,

I've been writing a routine to add scroll-wheel support to scripts and I've hit a slight snag with stopping an area scrolling out of its box - ie, I can't see any way to do it. :-)

With text-lists you have lc and the length of the list's block to determine this, but I can't find how to get such values with an area or any other way it could be done.  With areas I'm changing their para/scroll/y value to scroll them.

The routine I'm working on, which is usable now, can be found here... (Feel free to use it if you want.)

Any Ideas?
 

[DideC]

You can use size-text a-face to obtain the size of the text in a face. Then you pick X or Y value according the scrolling direction. In your case Y.

You can have a look to source of 'scroll-para func to see how it's doable. Inspiration maybe.

[CarlRead]

Thanks.  I'd received much the same reply on the mailing list, the result of which you can find here...

http://www.rebol.org/cgi-bin/cgiwrap/rebol...ead.r?m=rmlLJRC