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touchpad: Allow the center of pinned fingers to drift over time

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Allow the center of pinned fingers to drift over time, to avoid accidentally
unpinning fingers.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86807
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Hans de Goede 2015-01-14 10:17:06 +01:00 • committed by Peter Hutterer
parent 09d07d5634
commit aee7ba8360
1 changed files with 5 additions and 0 deletions
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5
src/evdev-mt-touchpad.c
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@ -385,7 +385,12 @@ tp_unpin_finger(struct tp_dispatch *tp, struct tp_touch *t)
tp->buttons.motion_dist * tp->buttons.motion_dist) {
t->pinned.is_pinned = false;
tp_set_pointer(tp, t);
return;
}
/* The finger may slowly drift, adjust the center */
t->pinned.center_x = t->x + t->pinned.center_x / 2;
t->pinned.center_y = t->y + t->pinned.center_y / 2;
}
static void