cnc-club.ru

Код: Выделить всё

class pyvcp_scale(Scale):
    """ (control) a slider 
        halpin-i is integer output 
        halpin-f is float output

        <scale>
            [ <halpin>"my-scale"</halpin> ]
            [ <resolution>0.1</resolution> ] scale value a whole number must end in '.'
            [ <orient>HORIZONTAL</orient>  ] aligns the scale horizontal
            [ <min_>-33</min_> ] sets the minimum value to -33
            [ <max_>26</max_> ] sets the maximum value to 26
            [ <initval>10</initval> ]  sets intial value to 10
        </scale>

    """
    # FIXME scale resolution when ctrl/alt/shift is held down?
    # FIXME allow user to specify size
    n=0
    def __init__(self,master,pycomp,
                    resolution=1,halpin=None,min_=0,max_=10,initval=0,**kw):
        self.resolution=resolution
        Scale.__init__(self,master,resolution=self.resolution,
                         from_=min_,to=max_,**kw)
        if halpin == None:
            halpin = "scale."+str(pyvcp_scale.n)
            pyvcp_scale.n += 1
        self.halpin=halpin
        pycomp.newpin(halpin+"-i", HAL_S32, HAL_OUT)
        pycomp.newpin(halpin+"-f", HAL_FLOAT, HAL_OUT)
        self.bind('<Button-4>',self.wheel_up)
        self.bind('<Button-5>',self.wheel_down)
        

        if initval < min_:
            self.value=min_
        elif initval > max_:
            self.value=max_
        else:
            self.value=initval

        self.set(self.value)

    def update(self,pycomp):
        pycomp[self.halpin+"-f"]=self.get()
        pycomp[self.halpin+"-i"]=int(self.get())

    def wheel_up(self,event):
        self.set(self.get()+self.resolution)

    def wheel_down(self,event):
        self.set(self.get()-self.resolution)