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Range: Fix inverted vert scrolling on horiz Ranges

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Users expect, & previous patches have tried to assure, that scrolling up
over a horizontal Range will cause the value to increase & vice-versa.
But the path using directions was still negating the delta & decreasing
the value on scrolling up. This could be seen on Win32 or X without XI2.

So, only negate the delta when scrolling down (or left), not up, so that
scrolling up (or right) will make the value increase for any event type.

https://bugzilla.gnome.org/show_bug.cgi?id=737175#c5
This commit is contained in:
Daniel Boles 2017-12-19 18:07:02 +00:00
parent 09c94c27e1
commit 4d18a346c1
1 changed files with 1 additions and 1 deletions
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2
gtk/gtkrange.c
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@ -3059,7 +3059,7 @@ _gtk_range_get_wheel_delta (GtkRange *range,
}
else if (gdk_event_get_scroll_direction ((GdkEvent *) event, &direction))
{
if (direction == GDK_SCROLL_UP ||
if (direction == GDK_SCROLL_DOWN ||
direction == GDK_SCROLL_LEFT)
delta = - scroll_unit;
else