Re: [AD] [ alleg-Bugs-2431768 ] display field for mouse state

[Evert Glebbeek <eglebbk@xxxxxxxxxx>]

On 15-Dec-08, at 8:26 PM, Peter Wang wrote:
> > How would this work: when the mouse cursor leaves the tracking
> > rectangle for a the window, the "mouse window" is set to NULL, when
> > the mouse cursor enters the tracking rectangle of a window the "mouse
> > window" is set to that window?
>
> Yes, that's what I'm thinking.

Ok, great.

> I added "probably" for a reason.  It seems to be a reasonable  
> behaviour.
> Otherwise, what would you report if the mouse is not over any of our
> windows?

I agree it sounds reasonable. However, we could also take the position  
that if the display field is NULL, the reported x and y coordinates  
are undefined - which is also a reasonable position to take if you ask  
me.
It all depends on when it would be useful to track the location of the  
mouse in the superview. The only one I can think of is if you want to  
emulate mouse mickeys, but that will be tricky because the coordinates  
change discontinuously when the mouse leaves the last window's  
tracking rectangle (as they do when they move from one window to  
another of course).

Evert