Add bounding-box in GraphStatistics.

src/main/org/insa/graph/GraphStatistics.java

@@ -10,6 +10,46 @@ package org.insa.graph;
  */
 public class GraphStatistics {
 
+    /**
+     * Class representing a bounding box for a graph (a rectangle that contains all
+     * nodes in the graph).
+     *
+     */
+    public static class BoundingBox {
+
+        private final Point topLeft, bottomRight;
+
+        /**
+         * Create a new BoundingBox represented by the given top-left and bottom-right
+         * points.
+         * 
+         * @param topLeft Top left corner of the bounding box.
+         * @param bottomRight Bottom right corner of the bounding box.
+         */
+        public BoundingBox(Point topLeft, Point bottomRight) {
+            this.topLeft = topLeft;
+            this.bottomRight = bottomRight;
+        }
+
+        /**
+         * @return Bottom-right point of this boundin box.
+         */
+        public Point getBottomRightPoint() {
+            return bottomRight;
+        }
+
+        /**
+         * @return Top-left point of this bounding box.
+         */
+        public Point getTopLeftPoint() {
+            return topLeft;
+        }
+
+    }
+
+    // Bounding box for this graph.
+    private final BoundingBox boundingBox;
+
     // Maximum speed on this graph (in kmph).
     private final int maximumSpeed;
 
@@ -20,17 +60,25 @@ public class GraphStatistics {
      * Create a new GraphStatistics instance with the given value.
      * 
      * @param maximumSpeed Maximum speed of any road of the graph. A value of 0 may
-     * be used to indicate that this graph has no maximum limitation.
+     *        be used to indicate that this graph has no maximum limitation.
      * @param maximumLength Maximum length of any arc of the graph.
      */
-    public GraphStatistics(int maximumSpeed, float maximumLength) {
+    public GraphStatistics(BoundingBox boundingBox, int maximumSpeed, float maximumLength) {
+        this.boundingBox = boundingBox;
         this.maximumLength = maximumLength;
         this.maximumSpeed = maximumSpeed;
     }
 
+    /**
+     * @return The bounding box for this graph.
+     */
+    public BoundingBox getBoundingBox() {
+        return this.boundingBox;
+    }
+
     /**
      * @return Maximum speed of any arc in the graph, or 0 if some road have no
-     * speed limitations.
+     *         speed limitations.
      */
     public int getMaximumSpeed() {
         return this.maximumSpeed;