'List the children of the artist which contain the mouse event *event*.'

def hitlist(self, event):

    L = []
    try:
        (hascursor, info) = self.contains(event)
        if hascursor:
            L.append(self)
    except:
        import traceback
        traceback.print_exc()
        print(u'while    checking', self.__class__)
    for a in self.get_children():
        L.extend(a.hitlist(event))
    return L
