On 19.02.2008, at 00:14, Yuri D'Elia wrote:

> Besides, I've found a program of mine that made use of grab and warp
> pointer (not using fltk). Some weird arcball control. grab was  
> sometimes
> required to make point selection a lot easier (without requiring to
> click or move to specific points) and the cursor was repositioned to  
> do
> things like the "truly unbounded roller" were the mouse would never  
> hit
> a border. However it's a long time that I don't use it anymore.


Yes, I contributed a cute widget once that was tiny and could be used  
as a shuttle search. Very neat. It used mouse pointer repositioning to  
recognize simple gestures.

And then I sent the application to an important client. He overwrote  
the previous version of the software, happy to now be able to make his  
deadline.

Well, he used no mouse but a teblet with a pen and absolute  
positioning. As a result, my wonderful new widget was completely  
unusable for him. And since he deleted the older version of my  
software, he could not use my app at all (and nearly missed his  
deadline).

Ooops.  ;-)

I stopped assuming that everyone uses a three button mouse with a  
scrollwheel. I actually bought a tiny tablet and started checking my  
apps for usability with a pen... .

Matthias

----
http://robowerk.com/


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