/*
    * Copyright (c) 2008, The JUNG Authors
    * All rights reserved.
    * 
    * This software is open-source under the BSD license; see either "license.txt"
    * or https://github.com/jrtom/jung/blob/master/LICENSE for a description.
    */
   package edu.uci.ics.jung.samples;
   
  import java.io.IOException;
  
  import javax.swing.JFrame;
  
  import com.google.common.base.Supplier;
  
  import edu.uci.ics.jung.algorithms.layout.FRLayout;
  import edu.uci.ics.jung.graph.Graph;
  import edu.uci.ics.jung.graph.UndirectedSparseGraph;
  import edu.uci.ics.jung.io.PajekNetReader;
  import edu.uci.ics.jung.visualization.VisualizationViewer;
  
  /**
   * A class that shows the minimal work necessary to load and visualize a graph.
   */
  public class SimpleGraphDraw 
  {
  
      @SuppressWarnings({ "rawtypes", "unchecked" })
  	public static void main(String[] args) throws IOException 
      {
          JFrame jf = new JFrame();
  		Graph g = getGraph();
          VisualizationViewer vv = new VisualizationViewer(new FRLayout(g));
          jf.getContentPane().add(vv);
          jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          jf.pack();
          jf.setVisible(true);
      }
      
      /**
       * Generates a graph: in this case, reads it from the file
       * "samples/datasetsgraph/simple.net"
       * @return A sample undirected graph
       * @throws IOException if there is an error in reading the file
       */
      @SuppressWarnings({ "rawtypes", "unchecked" })
  	public static Graph getGraph() throws IOException 
      {
          PajekNetReader pnr = new PajekNetReader(new Supplier(){
  			public Object get() {
  				return new Object();
  			}});
          Graph g = new UndirectedSparseGraph();
          
          pnr.load("src/main/resources/datasets/simple.net", g);
          return g;
      }
  }