Jerky Jogging (QTPlasmaC)

    def eventFilter(self, receiver, event):
        # in pyqt5 QWindow gets all events before the widgets inside it do
        # we need the widgets inside it to get their events first
        # this line line provides that.
        # (pyqt4 did not require this)
        if isinstance(receiver, QtGui.QWindow):
            return super(MyEventFilter,self).eventFilter(receiver, event)
        # Run in try statement so if we want to event to run through normal event routines,
        # we just raise an error and run the super class event handler.
        # This is necessary because if the widget (such as dialogs) are owned by c++ rather then python,
        # it causes an error and the keystrokes don't get to the widgets.
        try:
            if(event.type() == QtCore.QEvent.KeyPress):
                handled = False
                handled = self.w.keyPressTrap(event)
                if (self.has_key_p_handler):
                    handled = self.w.handler_instance.keypress_event__(receiver,event)
                elif self.has_process_key_handler:
                    p,k,c,s,ctrl = self.process_event(event,True)
                    handled = self.w.handler_instance.processed_key_event__(receiver,event,p,k,c,s,ctrl)
                if handled: return True
            elif (event.type() == QtCore.QEvent.KeyRelease):
                handled = False
                handled = self.w.keyReleaseTrap(event)
                if (self.has_key_r_handler):
                    handled = self.w.handler_instance.keyrelease_event__(event)
                elif self.has_process_key_handler:
                    p,k,c,s,ctrl = self.process_event(event,False)
                    handled = self.w.handler_instance.processed_key_event__(receiver,event,p,k,c,s,ctrl)
                if handled: return True
            elif event.type() in (QtCore.QEvent.FocusIn, QtCore.QEvent.FocusOut):
                self.w.handler_instance.processed_focus_event__(receiver,event)
            #Call Base Class Method to Continue Normal Event Processing
            return super(MyEventFilter,self).eventFilter(receiver, event)
        except:
            return super(MyEventFilter,self).eventFilter(receiver, event)