Return True if cursor is before *position*

def is_cursor_before(self, position, char_offset=0):
        """Return True if cursor is before *position*"""
        position = self.get_position(position) + char_offset
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.End)
        if position < cursor.position():
            cursor.setPosition(position)
            return self.textCursor() < cursor