def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_Ui_main()
self.ui.setupUi(self)
self.connect(self.ui.btnSetup, QtCore.SIGNAL("clicked()"),
self.on_setup_clicked)
self.connect(self.ui.btnRun, QtCore.SIGNAL("clicked()"),
self.on_run_clicked)
self.c = ParticleCanvas(self.ui.frame)
self.pp = DrawThread()
self.mm = StepThread()
self.connect(self.pp, QtCore.SIGNAL('DrawCanvas()'), self.c.redraw)
self.connect(self.mm, QtCore.SIGNAL('TakeStep()'), self.c.move)
