TP2: Implement the Image class as a Comparator<Image> interface.

[TP_POO.git] / TP2 / Image.java

diff --git a/TP2/Image.java b/TP2/Image.java
index 37bc6c3fc4d6b724c94db174b78f3e3bd79a8670..d508e75d4fc647d58f38bfa97432a46c8d29c4ff 100644 (file)
--- a/TP2/Image.java
+++ b/TP2/Image.java
@@ -1,5 +1,6 @@
+import java.util.Comparator;
 
-class Image extends Forme implements Compactable {
+public class Image extends Forme implements Compactable, Comparable<Image>, Comparator<Image> {
     final int IMAGE_MAX_SIZE = 100;
     Forme[] formeCollection;
     int formeNumber;
@@ -16,6 +17,10 @@ class Image extends Forme implements Compactable {
         formeNumber = 0;
     }
 
+    public int getSize() {
+        return formeNumber;
+    }
+
     private boolean isEmpty() {
         return (formeNumber == 0);
     }
@@ -67,10 +72,25 @@ class Image extends Forme implements Compactable {
     }
 
     public void compacter(int nElements) {
-        int minIndex = formeNumber - nElements - 1;
+        // Heavy solution
+        /* int minIndex = formeNumber - nElements - 1;
         for (int i = formeNumber - 1; (i > minIndex && !isEmpty()); i--) {
             supprimer(i);
+        } */
+        // Lightweight solution
+        if (formeNumber - nElements > 0) {
+            formeNumber -= nElements;
+        } else {
+            formeNumber = 0;
         }
     }
 
+    public int compareTo(Image image) {
+        return formeNumber - image.getSize();
+    }
+
+    public int compare(Image image1, Image image2) {
+        return image1.getSize() - image2.getSize();
+    }
+
 }