[Usability] Pls help resolve Motion Threshold bug #543091

[Francesco Fumanti <francesco fumanti gmx net>]

Hello,


There is an inconsistency between the layout of the Accessibility tab of 
the mouse control panel and how the Motion Threshold works:

In fact, the layout suggests that the motion threshold only works for 
the dwell click, but in reality, it also works for the simulated 
secondary click. In other words:

- if the simulated secondary click and the dwell click are both 
disabled, the motion treshold does not have any effect

- if the dwell click is enabled, the motion threshold also works (which 
is accurately suggested by the layout)

- if the simulated secondary click is enabled, the motion threshold does 
also work, even if the dwell click is disabled and the motion threshold 
slider is greyed.

So the motion threshold slider is in fact a feature that is shared 
between the simulated secondary click and the dwell click; and there is 
only one value in the program for it. (It is different from the delay 
slider where there are two values in the program: one for the simulated 
secondary click and one for the dwell click.)


I have filed a bug for the problem; you might want to have a look at it 
as there already are a few comments in the bug thread:
http://bugzilla.gnome.org/show_bug.cgi?id=543091


I have also tried to create some different more accurate layouts and 
posted them on the mousetweaks usability page. It is the layouts dated 
2008-10-25 and 2008-10-28 at the bottom of the following page:
http://bugzilla.gnome.org/show_bug.cgi?id=543091

In the layouts from 2008-10-28, I tried to also take account of
http://bugzilla.gnome.org/show_bug.cgi?id=554739 . But they have become 
really huge. I posted them anyway to show the idea of placing the Motion 
Threshold slider in a shared position between the simulated secondary 
click and the dwell click. Maybe that the base idea of the shared 
position is good and I should try to produce a more compact layout; but how?


Thanks in advance for any feedback and help.


Francesco