diff options
| author | José Expósito <jose.exposito89@gmail.com> | 2022-02-25 17:30:31 +0100 |
|---|---|---|
| committer | José Expósito <jose.exposito89@gmail.com> | 2022-07-11 11:01:35 +0200 |
| commit | 65c436407f37118618b348b9b7303b55322d66a2 (patch) | |
| tree | 5d2d03c15c91556cb44e7f4d4c9dcb775ee6d200 /include/wlr | |
| parent | c84cc660f0309a4139010be3cea631c464c52c11 (diff) | |
pointer: transform low-res to high-res axis events
Currently, the "wlr_event_pointer_axis" event stores low-resolution
values in its "delta_discrete" field. Low-resolution values are always
multiples of one, i.e., 1 for one wheel detent, 2 for two wheel
detents, etc.
In order to simplify internal handling of events, always transform in
the backend from the low-resolution value into the high-resolution
value.
The transformation is performed by multiplying by 120. The 120 magic
number is used by the kernel and it is exposed to clients in the
"WLR_POINTER_AXIS_DISCRETE_STEP" constant.
Diffstat (limited to 'include/wlr')
| -rw-r--r-- | include/wlr/types/wlr_pointer.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_pointer.h b/include/wlr/types/wlr_pointer.h index cce2a5a8..16aed1dc 100644 --- a/include/wlr/types/wlr_pointer.h +++ b/include/wlr/types/wlr_pointer.h @@ -78,6 +78,8 @@ enum wlr_axis_orientation { WLR_AXIS_ORIENTATION_HORIZONTAL, }; +#define WLR_POINTER_AXIS_DISCRETE_STEP 120 + struct wlr_pointer_axis_event { struct wlr_pointer *pointer; uint32_t time_msec; |