WidgetGroup.py 文件源码

def __init__(self, widgetList=None):
        """Initialize WidgetGroup, adding specified widgets into this group.
        widgetList can be: 
         - a list of widget specifications (widget, [name], [scale])
         - a dict of name: widget pairs
         - any QObject, and all compatible child widgets will be added recursively.

        The 'scale' parameter for each widget allows QSpinBox to display a different value than the value recorded
        in the group state (for example, the program may set a spin box value to 100e-6 and have it displayed as 100 to the user)
        """
        QtCore.QObject.__init__(self)
        self.widgetList = weakref.WeakKeyDictionary() # Make sure widgets don't stick around just because they are listed here
        self.scales = weakref.WeakKeyDictionary()
        self.cache = {}  ## name:value pairs
        self.uncachedWidgets = weakref.WeakKeyDictionary()
        if isinstance(widgetList, QtCore.QObject):
            self.autoAdd(widgetList)
        elif isinstance(widgetList, list):
            for w in widgetList:
                self.addWidget(*w)
        elif isinstance(widgetList, dict):
            for name, w in widgetList.items():
                self.addWidget(w, name)
        elif widgetList is None:
            return
        else:
            raise Exception("Wrong argument type %s" % type(widgetList))