def onDataReceived(self, widget, context, x, y, selection,

                       targetType, time):

        uri = URIRef(selection.data.strip())

        subName = self.graph.label(uri)

        try:

            self.makeSubterm(subName, withCurve=True)

        except SubtermExists:

            pass

        curveView = self.curvesetView.row(subName).curveView

        t = self.lastSeenInputTime # curveView.current_time() # new curve hasn't heard the time yet. this has gotten too messy- everyone just needs to be able to reach the time source

        print "time", t

    def onNewCurve(self, *args):

        dialog = self.wtree.get_object("newCurve")

        entry = self.wtree.get_object("newCurveName")

        # if you don't have songx, that should be the suggested name

        entry.set_text("")

        if dialog.run() == 1:

            self.curveset.new_curve(entry.get_text())

        dialog.hide()

    def onNewSubterm(self, *args):

        try:

            handletags = [t for t in tags if t.startswith('handle')]

            return int(handletags[0][6:])

        except IndexError:

            raise ValueError("no point found")

    def new_point_at_mouse(self, ev):

        p = self.world_from_screen(ev.x,ev.y)

        x = p[0]

        y = self.curve.eval(x)

        self.add_point((x, y))

    def add_point(self, p):

    def add_marker(self, p):

        self.markers.insert_pt(p)

        self.update_curve()

    def remove_point_idx(self, *idxs):

        idxs = list(idxs)

        while idxs:

            i = idxs.pop()

            self.curve.points.pop(i)

            newsel = []