class Application:
#. Contructor .#
def __init__ (self):
self.interface = Interface(self.ButtonCallBack) # Create an interface
self.graph = Graph() # Create a graph
self.graph.formGraph() # Form the graph
#. Call back function when button is pressed .#
def ButtonCallBack(self):
startName = self.interface.getStartEntry().encode('gbk')
destName = self.interface.getDestEntry().encode('gbk')
start = self.graph.findVertex(startName) # Find the start vertex
dest = self.graph.findVertex(destName) # Find the dest vertex
# If start or dest are not found
if start == None:
result = startName.encode('utf8') + ' doesn\'t exist'
elif dest == None:
result = destName.encode('utf8') + ' doesn\'t exist'
else: # Normal case
self.graph.BFS(start)
result = self.graph.shortestPath(dest).encode('utf8')
self.interface.updateText(result)
#. Run the program .#
def run(self):
mainloop()
