components.py 36.9 KB
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        if self._svgItem == None:
            self._svgItem = pykat.gui.graphics.ComponentQGraphicsItem(":/resources/laser.svg", self, [(65,25,self.nodes[0])])
            
        return self._svgItem
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class squeezer(Component):
    def __init__(self, name, node, f=0, db=0, angle=0, phase=0):
        Component.__init__(self,name)
        
        self._requested_node_names.append(node)
        
        self.__f = Param("f", self, SIfloat(f), canFsig=True, fsig_name="f")
        self.__phase = Param("phase", self, SIfloat(phase), canFsig=True, fsig_name="phase")
        self.__db = Param("db", self, SIfloat(db), canFsig=False, fsig_name="r")
        self.__angle = Param("angle", self, SIfloat(angle), canFsig=False, fsig_name="angle")
        self._svgItem = None
        
    @property
    def db(self): return self.__db
    @db.setter
    def db(self,value): self.__db.value = float(value)
    
    @property
    def angle(self): return self.__angle
    @angle.setter
    def angle(self,value): self.__angle.value = float(value)
    
    @property
    def f(self): return self.__f
    @f.setter
    def f(self,value): self.__f.value = float(value)
    
    @property
    def phase(self): return self.__phase
    @phase.setter
    def phase(self,value): self.__phase.value = float(value)
    
    def parseAttributes(self, values):
        pass
    
    @staticmethod
    def parseFinesseText(text):
        values = text.split()

        if values[0] != "sq":
            raise pkex.BasePyKatException("'{0}' not a valid Finesse squeezer command".format(text))

        values.pop(0) # remove initial value
        
        if len(values) == 5:
            return squeezer(values[0], values[4], f=values[1], db=values[2], angle=values[3])
        else:
            raise exceptions.FinesseParse("Squeezer Finesse code format incorrect '{0}'".format(text))
    
    def getFinesseText(self):
        rtn = ['sq {0} {1} {2} {3} {4}'.format(self.name, self.f.value, self.db.value, self.angle.value, self.nodes[0].name)]
        
        for p in self._params:
            rtn.extend(p.getFinesseText())
        
        return rtn
         
    def getQGraphicsItem(self):
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        if not USE_GUI:
            raise NoGUIException
            
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        if self._svgItem == None:
            self._svgItem = pykat.gui.graphics.ComponentQGraphicsItem(":/resources/laser.svg", self, [(65,25,self.nodes[0])])
            
        return self._svgItem
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