1218 	def __init__(self, key, title = "", ordinal = ""):  argument
1219 		self.key = key
1239 	def __init__(self, key, exec_comm_id, pid, tid, comm, thread_id, comm_id):  argument
1240 		super(SwitchGraphDataRegion, self).__init__(key)
1350 	def NewHRegion(self, db, key, thread_id, comm_id, time):  argument
1366 		return SwitchGraphDataRegion(key, exec_comm_id, pid, tid, comm, thread_id, comm_id)
1369 		key = str(thread_id) + ":" + str(comm_id)
1370 		hregion = self.collection.LookupHRegion(key)
1372 			hregion = self.NewHRegion(db, key, thread_id, comm_id, time)
1373 			self.collection.AddHRegion(key, hregion)
1393 	def LookupHRegion(self, key):  argument
1394 		if key in self.hregions:
1395 			return self.hregions[key]
1398 	def AddHRegion(self, key, hregion):  argument
1399 		self.hregions[key] = hregion
1462 			colour = self.attrs.region_attributes[last.hregion.key].colour
1927 		self.child_items = sorted(collection.hregions.values(), key=GraphDataRegionOrdinal)
1957 				return self.region_attributes[child.key].colour
1963 			return self.region_attributes[child.key].colour
2208 				region_attributes[hregion.key] = GraphRegionAttribute(QColor(0, 0, 0))
2210 				region_attributes[hregion.key] = GraphRegionAttribute(colours[i])
3851 	indexes = sorted(view.selectedIndexes(), key=RowColumnKey)