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from matplotlib.backends.backend_qtagg import NavigationToolbar2QT


class PyDVToolbar(NavigationToolbar2QT):
    def __init__(self, canvas_, parent_, coordinates_):
        self.parent = parent_
        NavigationToolbar2QT.__init__(self, canvas_, parent_, coordinates_)

    def edit_parameters(self):
        self.parent.plotChanged = True
        NavigationToolbar2QT.edit_parameters(self)

    def zoom(self, *args):
        self.parent.plotChanged = True
        NavigationToolbar2QT.zoom(self, *args)
