Pmw.py 文件源码

def yview(self, mode = None, value = None, units = None):

        if type(value) == types.StringType:
            value = string.atof(value)
        if mode is None:
            return self._vertScrollbar.get()
        elif mode == 'moveto':
            frameHeight = self._frame.winfo_reqheight()
            self.startY = value * float(frameHeight)
        else: # mode == 'scroll'
            clipperHeight = self._clipper.winfo_height()
            if units == 'units':
                jump = int(clipperHeight * self['vertfraction'])
            else:
                jump = clipperHeight
            self.startY = self.startY + value * jump

        self.reposition()

    # ======================================================================

    # Configuration methods.