# A complex example that build a graph and visualize it using Swing

from jhplot  import *
from java.net import *
from javax.swing import *
from java.awt import *
from org.jgrapht.ext import JGraphXAdapter
from com.mxgraph.swing import mxGraphComponent
from com.mxgraph.layout import mxCircleLayout
from org.jgrapht.graph import DefaultListenableGraph
import sys

gh=HGraph().buildDirectedGraph()
g=DefaultListenableGraph(gh)
adapter = JGraphXAdapter(g)

v1,v2,v3,v4 = "v1","v2","v3","v4"

# add vertexes
g.addVertex(v1)
g.addVertex(v2)
g.addVertex(v3)
g.addVertex(v4)

g.addEdge(v1, v2)
g.addEdge(v2, v3)
g.addEdge(v3, v1)
g.addEdge(v4, v3)

# positioning via jgraphx layouts
layout = mxCircleLayout(adapter)
layout.execute(adapter.getDefaultParent())

frame = JFrame()
frame.getContentPane().add(mxGraphComponent(adapter) )
frame.setTitle("JGraphT Adapter")
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
# frame.setSize(Dimension(400, 400))
frame.pack()
frame.setVisible(True)