- int m = x + width() / 2;
- int yo = y + cell(1).descent() + cell(0).ascent() + 1;
- cell(1).draw(pi, m - cell(1).width() / 2, y);
- FracChanger dummy(pi.base);
- cell(0).draw(pi, m - cell(0).width() / 2, yo);
+ Changer dummy2 = pi.base.changeEnsureMath();
+ Dimension const dim = dimension(*pi.base.bv);
+ Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
+ Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
+ int m = x + dim.wid / 2;
+ int yo = y + dim1.descent() + dim0.ascent() + 1;
+ cell(1).draw(pi, m - dim1.width() / 2, y);
+ Changer dummy = pi.base.changeFrac();
+ cell(0).draw(pi, m - dim0.width() / 2, yo);