Non-Reentrant method in overrided resizeEvent method problem

[vertusd]

I write a table class which can reload items after a resize event.

But the the reloadControls() method is non-reentrant

After i resize the table to a smaller size, two reloadControls() confilcts. The controls loaded twice,

So ,how can i prevent this situation, Cos when you resize a window,resizeEvent are raised several times.

class  ClientTableWidget(QtGui.QTableWidget): 
 
def resizeEvent(self,event):
        if self.rowCount()!=0:
                self.reloadControls()
        QtGui.QTableWidget.resizeEvent(self, event)
 
def reloadControls(self):        
        self.clear()
        if self.rowCount()==0:
            for key in self.c_dict:
                self.addItem( self.c_dict[key])

class  ClientTableWidget(QtGui.QTableWidget): 

def resizeEvent(self,event):
        if self.rowCount()!=0:
                self.reloadControls()
        QtGui.QTableWidget.resizeEvent(self, event)

def reloadControls(self):        
        self.clear()
        if self.rowCount()==0:
            for key in self.c_dict:
                self.addItem( self.c_dict[key])

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sample images:
after loading

after enlarging the window size, items' number did not change, there is no conflict

but when i resize the window to a smaller size, items loaded twice :