Began Multimedia part

window/ChatWindow.java

@@ -11,6 +11,8 @@ import javafx.scene.control.Button;
 import javafx.scene.control.Label;
 import javafx.scene.control.ScrollPane;
 import javafx.scene.control.TextField;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
 import javafx.scene.input.InputMethodEvent;
 import javafx.scene.input.KeyCode;
 import javafx.scene.input.KeyEvent;
@@ -69,6 +71,15 @@ public class ChatWindow extends Application {
         });
     }
 
+    public void addImage(String user, Image image) {
+        addMessage(user, "");
+        Platform.runLater(() -> {
+            ImageView imageView = new ImageView();
+            imageView.setImage(image);
+            messagePane.getChildren().add(imageView);
+        });
+    }
+
     public void addMessage(String user, String message) { Platform.runLater(() -> addMessage(user, message, true)); }
 
     public void addMessage(String user, String message, boolean doTimestamp) {

window/WindowProtoHandler.java

@@ -2,12 +2,10 @@ package window;
 
 import javafx.application.Platform;
 import javafx.scene.control.Alert;
+import javafx.scene.image.Image;
 import proto.ProtoHandler;
 
 import java.io.*;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.security.AlgorithmConstraints;
 import java.util.ArrayList;
 
 public class WindowProtoHandler implements ProtoHandler {
@@ -59,15 +57,23 @@ public class WindowProtoHandler implements ProtoHandler {
 
     @Override
     public void handleFile(String username, String filename, byte[] data) {
-        Platform.runLater(() -> {
-            try {
-                chatWindow.addMessage("Server", "User [" + username + "] has sent the file \"" + filename + "\".");
-                FileOutputStream fileOutputStream = new FileOutputStream(filename);
-                fileOutputStream.write(data);
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
+        if (filename.endsWith(".png") || filename.endsWith(".jpg")) {
+            Platform.runLater(() -> {
+                Image image = new Image(new ByteArrayInputStream(data));
+                chatWindow.addImage(username, image);
+            });
+        }
+        else {
+            Platform.runLater(() -> {
+                try {
+                    chatWindow.addMessage("Server", "User [" + username + "] has sent the file \"" + filename + "\".");
+                    FileOutputStream fileOutputStream = new FileOutputStream(filename);
+                    fileOutputStream.write(data);
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
         });
+        }
     }
 
     @Override