func (l *TableView) OnDrawCell(fn func(*ColumnDrawInfo)) {
	l.mtx.Lock()
	l.onDrawCell = fn
	l.mtx.Unlock()
}
func (l *TableView) OnDrawCell(fn func(*ColumnDrawInfo)) {
	l.mtx.Lock()
	l.onDrawCell = fn
	l.mtx.Unlock()
}
func ( l * TableView ) OnDrawCell ( fn func ( * ColumnDrawInfo ) ) { l . mtx . Lock ( ) l . onDrawCell = fn l . mtx . Unlock ( ) }
// OnDrawCell is called every time the table is going to display
// a cell
OnDrawCell is called every time the table is going to display a cell