Ajout de la classe Mirror pour appliquer un effet de miroir sur les images et...

Ajout de la classe Mirror pour appliquer un effet de miroir sur les images et mise à jour de la classe Display pour l'utiliser.

src/main/java/Display.java

@@ -22,7 +22,7 @@ public class Display implements Initializable {
 
         this.image = MatrixGrayImage.createImageFromPGMFile("images/luminy.pgm");
 
-        transform[] transformList = new transform[] {new DecreaseGrayLevels(8), new Outline(0.05), new Invert()};
+        transform[] transformList = new transform[] {new Mirror("both")};
 
         transform transformation = new CompositeTransform(transformList);
 

src/main/java/Mirror.java

+public class Mirror implements transform {
+    private String axes;
+
+    public Mirror(String axes) {
+        this.axes = axes;
+    }
+
+    public void applyTo(GrayImage image) {
+        modify(image);
+    }
+
+    public void modify(GrayImage image) {
+        int width = image.getWidth();
+        int height = image.getHeight();
+        GrayColor shortLivedColor = new ByteGrayColor();
+
+        if (axes.equals("horizontal")) {
+            horizontalFlip(image, width, height, shortLivedColor);
+        }
+
+        if (axes.equals("vertical")) {
+            verticalFlip(image, width, height, shortLivedColor);
+        }
+
+        if (axes.equals("both")) {
+            horizontalFlip(image, width, height, shortLivedColor);
+            verticalFlip(image, width, height, shortLivedColor);
+        }
+    }
+
+
+    public void horizontalFlip(GrayImage image, int width, int height, GrayColor shortLivedColor) {
+        for (int i = 0; i < width * 0.5; i++){
+            for (int j = 0; j < height; j++){
+                shortLivedColor = image.getPixelGrayColor(i, j);
+                image.setPixel(image.getPixelGrayColor(width - 1 - i, j), i, j);
+                image.setPixel(shortLivedColor, width - 1 - i, j);
+            }
+        }
+    }
+
+    public void verticalFlip(GrayImage image, int width, int height, GrayColor shortLivedColor) {
+        for (int i = 0; i < width; i++){
+            for (int j = 0; j < height * 0.5; j++){
+                shortLivedColor = image.getPixelGrayColor(i, j);
+                image.setPixel(image.getPixelGrayColor(i, height - 1 -j), i, j);
+                image.setPixel(shortLivedColor, i, height - 1 - j);
+            }
+        }
+    }
+}