On Mon, Dec 21, 2015 at 02:44:03PM -0800, Bill Spitzak wrote: > On Mon, Dec 21, 2015 at 1:24 PM, Peter Hutterer <peter.hutte...@who-t.net> > wrote: > > > On Mon, Dec 21, 2015 at 10:12:24AM -0800, Bill Spitzak wrote: > > > I find it hard to believe this is what client programs will want. A > > > painting program wants the axis of an elongated brush to be perpendicular > > > to the tilt will work correctly only if *both* axes are flipped (as your > > > code appears to be doing). But it will get "which edge is nearer" > > backward > > > if it wants to draw something asymmetric in the direction the pen is > > > tilted. And it also seems to make little sense to flip the vertical tilt > > > for a left-handed user. > > > > > > Or are you perhaps undoing some flip that the tablet is doing internally? > > > > a tablet in left-handed mode is effectively rotated by 180 degrees to bring > > the set of buttons towards the side of the nondominant hand. this inverts x > > and y, if we don't also invert tilt the client program will think that the > > pen is tilted in the opposite direction. > > > > symmetrical tablets don't have a left-handed mode. > > > > That makes sense. I assume the condition that triggers this is exactly the > same as the one that triggers the x and y axis to be inverted, right? > > You might also need to check whether z-axis rotation is correct (ie is the > zero in the right direction).
sorry about the delay: yeah, you're right, I've added this to my todo list. Cheers, Peter _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/wayland-devel
