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| author | Henrik Rydberg <rydberg@euromail.se> | 2010-05-14 01:15:14 +0200 |
|---|---|---|
| committer | Henrik Rydberg <rydberg@euromail.se> | 2010-05-14 01:41:39 +0200 |
| commit | 8ced3667a30e00bd2368d4b5417f1f07cc86d290 (patch) | |
| tree | 57137593f90a29c5ac9039fc1aebcde1158f01cb /src/mtstate.h | |
| parent | ebaf307ab1b22d4786cc5fb55170204759e887ce (diff) | |
| download | xorg-input-kobomultitouch-8ced3667a30e00bd2368d4b5417f1f07cc86d290.tar.gz xorg-input-kobomultitouch-8ced3667a30e00bd2368d4b5417f1f07cc86d290.tar.bz2 xorg-input-kobomultitouch-8ced3667a30e00bd2368d4b5417f1f07cc86d290.zip | |
Add convenience methods for distance to capability center point
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'src/mtstate.h')
| -rw-r--r-- | src/mtstate.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/mtstate.h b/src/mtstate.h index fa297cd..a8feaa4 100644 --- a/src/mtstate.h +++ b/src/mtstate.h @@ -44,5 +44,19 @@ void output_mtstate(const struct MTState *s); const struct MTFinger *find_finger(const struct MTState *s, int id); + +static inline int center_dist2(const struct MTFinger *a, + const struct Capabilities *caps) +{ + return dist2(a->hw.position_x - get_cap_xmid(caps), + a->hw.position_y - get_cap_ymid(caps)); +} + +static inline int center_maxdist2(const struct Capabilities *caps) +{ + return dist2(caps->abs_position_x.maximum - get_cap_xmid(caps), + caps->abs_position_y.maximum - get_cap_ymid(caps)); +} + #endif |