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| author | Henrik Rydberg <rydberg@euromail.se> | 2010-05-13 23:21:37 +0200 |
|---|---|---|
| committer | Henrik Rydberg <rydberg@euromail.se> | 2010-05-14 01:41:39 +0200 |
| commit | 31a96545e433128af34f08a0bb993bbc54e90df1 (patch) | |
| tree | 8b352a2eb50d7a054867112f94f93689f51a1cc4 /src/memory.c | |
| parent | c620cb1319093dca0f0241c04c4c227a40577bdc (diff) | |
| download | xorg-input-kobomultitouch-31a96545e433128af34f08a0bb993bbc54e90df1.tar.gz xorg-input-kobomultitouch-31a96545e433128af34f08a0bb993bbc54e90df1.tar.bz2 xorg-input-kobomultitouch-31a96545e433128af34f08a0bb993bbc54e90df1.zip | |
Disable motion with resting thumbs
Disable motion gestures whenever one of the pointing fingers is a
thumb. Movement is skipped rather than held, minimizing unpredictable
movement after thumb release.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'src/memory.c')
| -rw-r--r-- | src/memory.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/memory.c b/src/memory.c index 7d8cda8..9084502 100644 --- a/src/memory.c +++ b/src/memory.c @@ -46,11 +46,11 @@ void init_memory(struct Memory *mem) /** * update_configuration * - * Update the same, fingers, added memory variables. + * Update the same, fingers, added, and thumb memory variables. * * Precondition: none * - * Postcondition: same, fingers, added are set + * Postcondition: same, fingers, added, thumb are set * */ static void update_configuration(struct Memory *m, @@ -66,6 +66,11 @@ static void update_configuration(struct Memory *m, SETBIT(m->added, i); m->same = m->fingers == fingers && m->added == 0; m->fingers = fingers; + if (!m->same) + m->thumb = 0; + foreach_bit(i, fingers) + if (f[i].thumb) + SETBIT(m->thumb, i); } /** @@ -73,7 +78,7 @@ static void update_configuration(struct Memory *m, * * Update the pointing and ybar memory variables. * - * Precondition: fingers, added are set + * Precondition: fingers, added, thumb are set * * Postcondition: pointing, ybar are set * @@ -121,7 +126,7 @@ static void update_pointers(struct Memory *m, * When moving is nonzero, gestures can be extracted from the dx and dy * variables. These variables should be cleared after use. * - * Precondition: fingers, added, pointing are set + * Precondition: fingers, added, thumb, pointing are set * * Postcondition: pending, moving, mvhold, mvforget, dx, dy are set * |