wxString GroupCell::ToString() { wxString str; if (GetEditable()) { str = m_input->ListToString(); if (m_output != NULL && !m_hide) { MathCell *tmp = m_output; while (tmp != NULL) { if (tmp->ForceBreakLineHere() && str.Length()>0) str += wxT("\n"); str += tmp->ToString(); tmp = tmp->m_nextToDraw; } } } return str; }