Re: Why floating point for widget positions

[Olexiy Avramchenko <olexiy ctech cn ua>]

Michael Natterer wrote:
> Because extended input devices produce coordinates
> at sub-pixel positions.
Aha, interesting... Now, after I've read [1] and looked into the source, I see 
that GDK can translate XInput events to GDK_MOTION_NOTIFY events with 
coordinates that have a fractional part.

Can you provide an example of how floating point x,y coordinates from motion 
event can be used? Mike is right - every GTK widget uses type casting from 
double to int for them and this looks natural for the discrete displays.

[1] http://developer.gnome.org/doc/API/2.0/gdk/gdk-Input-Devices.html

	Olexiy