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Using mouse wheel to zoom in sometimes zooms out, fixes #5036

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heckflosse 2018-11-26 21:00:48 +01:00
parent 1bfe03418e
commit ae4cfaa992
1 changed files with 4 additions and 0 deletions
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4
rtgui/cropwindow.cc
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@ -275,6 +275,10 @@ void CropWindow::scroll (int state, GdkScrollDirection direction, int x, int y,
} else { } else {
delta = deltaY; delta = deltaY;
} }
if (delta == 0.0 && direction == GDK_SCROLL_SMOOTH) {
// sometimes this case happens. To avoid zooming into the wrong direction in this case, we just do nothing
return;
}
bool isUp = direction == GDK_SCROLL_UP || (direction == GDK_SCROLL_SMOOTH && delta < 0.0); bool isUp = direction == GDK_SCROLL_UP || (direction == GDK_SCROLL_SMOOTH && delta < 0.0);
if ((state & GDK_CONTROL_MASK) && onArea(ColorPicker, x, y)) { if ((state & GDK_CONTROL_MASK) && onArea(ColorPicker, x, y)) {
// resizing a color picker // resizing a color picker