Dimension const dim = dimension(*pi.base.bv);
Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
// center the cells with the decoration
cell(0).draw(pi, x + dim.width()/2 - dim0.width()/2, y - 10);
Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
cell(1).draw(pi, x + dim.width()/2 - dim1.width()/2, y + dim1.height());
Dimension const dim = dimension(*pi.base.bv);
Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
// center the cells with the decoration
cell(0).draw(pi, x + dim.width()/2 - dim0.width()/2, y - 10);
Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
cell(1).draw(pi, x + dim.width()/2 - dim1.width()/2, y + dim1.height());