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Fix scrolling in wrong direction when using mouse wheel in filebrowser, #5036

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heckflosse 2018-11-27 19:54:26 +01:00
parent 6ba989ef1c
commit d06e26356b
1 changed files with 4 additions and 0 deletions
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4
rtgui/thumbbrowserbase.cc
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@ -76,6 +76,10 @@ void ThumbBrowserBase::scroll (int direction, double deltaX, double deltaY)
} else { } else {
delta = deltaY; delta = deltaY;
} }
if (direction == GDK_SCROLL_SMOOTH && delta == 0.0) {
// sometimes this case happens. To avoid scrolling the wrong direction in this case, we just do nothing
return;
}
double coef = direction == GDK_SCROLL_DOWN || (direction == GDK_SCROLL_SMOOTH && delta > 0.0) ? +1.0 : -1.0; double coef = direction == GDK_SCROLL_DOWN || (direction == GDK_SCROLL_SMOOTH && delta > 0.0) ? +1.0 : -1.0;
// GUI already acquired when here // GUI already acquired when here