const int offset = 6;
const int x = qMin(oldPos, m_cursorPosition);
const int w = qAbs(oldPos - m_cursorPosition);
update(x - offset, 4, w + 2 * offset, 6);
const int offset = 6;
const int x = qMin(oldPos, m_cursorPosition);
const int w = qAbs(oldPos - m_cursorPosition);
update(x - offset, 4, w + 2 * offset, 6);