Added graphviz

src/com/imegumii/Graph.java

@@ -1,5 +1,17 @@
 package com.imegumii;
 
+import guru.nidi.graphviz.engine.Format;
+import guru.nidi.graphviz.engine.Graphviz;
+import guru.nidi.graphviz.model.Label;
+import guru.nidi.graphviz.model.MutableGraph;
+import guru.nidi.graphviz.model.Node;
+import guru.nidi.graphviz.parse.Parser;
+
+import java.io.*;
+
+import static guru.nidi.graphviz.model.Factory.graph;
+import static guru.nidi.graphviz.model.Factory.node;
+
 /**
  * Created by kenny on 18-5-2017.
  */
@@ -30,4 +42,27 @@ public class Graph {
 
         return text;
     }
+
+    public static void generateImage(Automata<String> a, String fileName) {
+        try {
+            File f = new File("images/" + a.toString() + ".dot");
+            PrintWriter w = new PrintWriter(f);
+            w.println(Graph.generateGraphString(a));
+            w.flush();
+            w.close();
+            MutableGraph g = Parser.read(f);
+            if (fileName != null) {
+                Graphviz.fromGraph(g).width(1080).render(Format.PNG).toFile(new File("images/" + fileName + ".png"));
+            } else {
+                Graphviz.fromGraph(g).width(1080).render(Format.PNG).toFile(new File("images/" + a.toString() + ".png"));
+            }
+
+            if (f.delete()) {
+                System.out.println("Succesfully deleted temp file");
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+    }
 }