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tablet: fix the airbrush slider range

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Supposed to be [-1, 1] but we only generated [0, 1]

Reported-by: Carlos Garnacho <carlosg@gnome.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Carlos Garnacho <carlosg@gnome.org>
This commit is contained in:
Peter Hutterer 2016-04-11 07:18:07 +10:00
parent 5152d94cd2
commit 25a9f394fc
2 changed files with 8 additions and 4 deletions
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2
src/evdev-tablet.c
View file

@ -201,7 +201,7 @@ normalize_dist_slider(const struct input_absinfo *absinfo)
double range = absinfo->maximum - absinfo->minimum;
double value = (absinfo->value - absinfo->minimum) / range;
return value;
return value * 2 - 1;
}
static inline double

10
test/tablet.c
View file

@ -2532,7 +2532,7 @@ START_TEST(airbrush_tool)
}
END_TEST
START_TEST(airbrush_wheel)
START_TEST(airbrush_slider)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
@ -2541,6 +2541,7 @@ START_TEST(airbrush_wheel)
const struct input_absinfo *abs;
double val;
double scale;
double expected;
int v;
if (!libevdev_has_event_code(dev->evdev,
@ -2574,7 +2575,10 @@ START_TEST(airbrush_wheel)
ck_assert(libinput_event_tablet_tool_slider_has_changed(tev));
val = libinput_event_tablet_tool_get_slider_position(tev);
ck_assert_int_eq(val, (v - abs->minimum)/scale);
expected = ((v - abs->minimum)/scale) * 2 - 1;
ck_assert_double_eq(val, expected);
ck_assert_double_ge(val, -1.0);
ck_assert_double_le(val, 1.0);
libinput_event_destroy(event);
litest_assert_empty_queue(li);
}
@ -3657,7 +3661,7 @@ litest_setup_tests(void)
litest_add("tablet:mouse", mouse_rotation, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:mouse", mouse_wheel, LITEST_TABLET, LITEST_WHEEL);
litest_add("tablet:airbrush", airbrush_tool, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:airbrush", airbrush_wheel, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:airbrush", airbrush_slider, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:artpen", artpen_tool, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:artpen", artpen_rotation, LITEST_TABLET, LITEST_ANY);