def __init__(self, parent=None):
super(CurveDisplayLeftPanel, self).__init__(parent)
self.displayed_curve_id = None
self.setup_plot_widget()
self.lay = QtGui.QVBoxLayout()
self.lay.addWidget(self.toolbar)
self.lay.addWidget(self.plot_widget)
self.alter_curve_widget = CurveAlterWidget(self)
self.alter_curve_widget.curve_saved.connect(self.save_pressed)
self.alter_curve_widget.delete_done.connect(self.delete_done)
self.lay.addWidget(self.alter_curve_widget)
self.setLayout(self.lay)
