}
-bool MathFracbaseInset::idxUp(idx_type & idx) const
+bool MathFracbaseInset::idxUpDown(idx_type & idx, bool up) const
{
- if (idx == 0)
+ MathInset::idx_type target = !up; // up ? 0 : 1, since upper cell has idx 0
+ if (idx == target)
return false;
- idx = 0;
- return true;
-}
-
-
-bool MathFracbaseInset::idxDown(idx_type & idx) const
-{
- if (idx == 1)
- return false;
- idx = 1;
+ idx = target;
return true;
}