[Squeak-VMdev] Re: wheel/scroll mouse logic

[David A. S. <dav...@be...>]

We are using this for Croquet, but we are happy to have it simply emit  
up-arrow and down-arrow keys for now, which I believe is the behavior  
on the Mac and Win.
Regards,

David

On Jul 29, 2004, at 2:50 AM, John M McIntosh wrote:

> In making changes to sq.h I discovered that I had made a change for  
> the scroll mouse logic which impacts some changes we want to
> make for multiple windows, but I not sure anyone is using this feature.
>
> On os-x if you are using a wheel mouse I generate a mouse move event  
> and pass up
> the axis direction and number of movements in the reserved fields,  
> followed by the key-down/key char/key-up events
> for each simulated arrow key.
>
> I believe other platforms just provide the key stroke data and do not  
> pass up the raw wheel mouse data. As mentioned earlier this
> data is provided in the two reserved (undocumented) fields of the  
> mouse event from EventSensor.
>
> In looking at what is happening in the image, I can't see anyone  
> actually using this data at this time.
>
> Because of changes we're making I'm going to be dropping this  
> information, since it's not duplicated on other platforms, this is
> an easier choice than adding another field to the event logic to  
> support the windowIndex information.
>
>  If anyone has issues please let me know.
>
>
> --
> ======================================================================= 
> ====
> John M. McIntosh <jo...@sm...> 1-800-477-2659
> Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
> ======================================================================= 
> ====
>
>