replaced "missing input" pop-ups with textFild highlighting

src/ui/view/AddObjectPopUp.java

@@ -1,6 +1,7 @@
 package ui.view;
 
 import java.awt.BorderLayout;
+import java.awt.Color;
 import java.awt.Component;
 import java.awt.FlowLayout;
 import java.awt.Image;
@@ -84,6 +85,24 @@ public class AddObjectPopUp extends JDialog {
 		}
 		{
 			objectName = new JTextField();
+			objectName.addKeyListener(new KeyListener() {
+				@Override
+				public void keyPressed(KeyEvent arg0) {
+					// TODO Auto-generated method stub
+					
+				}
+
+				@Override
+				public void keyReleased(KeyEvent e) {
+					// TODO Auto-generated method stub
+					
+				}
+
+				@Override
+				public void keyTyped(KeyEvent e) {
+					objectName.setBackground(Color.WHITE);					
+				}
+			});
 			objectName.setBounds(98, 18, 172, 20);
 			contentPanel.add(objectName);
 			objectName.setColumns(10);
@@ -101,6 +120,24 @@ public class AddObjectPopUp extends JDialog {
 		}
 		{
 			sourcePath = new JTextField();
+			sourcePath.addKeyListener(new KeyListener() {
+				@Override
+				public void keyPressed(KeyEvent arg0) {
+					// TODO Auto-generated method stub
+					
+				}
+
+				@Override
+				public void keyReleased(KeyEvent e) {
+					// TODO Auto-generated method stub
+					
+				}
+
+				@Override
+				public void keyTyped(KeyEvent e) {
+					sourcePath.setBackground(Color.WHITE);					
+				}
+			});
 			sourcePath.setBounds(148, 77, 271, 20);
 			contentPanel.add(sourcePath);
 			sourcePath.setColumns(10);
@@ -166,18 +203,23 @@ public class AddObjectPopUp extends JDialog {
 					public void mouseClicked(MouseEvent e) {
 						Component frame = null;
 						if (objectName.getText().length() == 0) {
-							JOptionPane.showMessageDialog(frame, "please enter a name");
-						} else if (!sourcePath.getText().equals(filePath)) {
-							JOptionPane.showMessageDialog(frame, "No image selected!");
-						} else {
-							copieFile();
-							theObject = new HolonObject(objectName.getText());
-							theObject.setElements(hElements);
-							theObject.setImage(imagePath);
-							controller.addObjectCategory(controller.searchCategory(givenCategory), theObject);
-							System.out.println(theObject.getImage());
-							System.out.println(givenCategory);
-							dispose();
+							// JOptionPane.showMessageDialog(frame, "please
+							// enter a name");
+							objectName.setBackground(new Color(255, 50, 50));
+							if (!sourcePath.getText().equals(filePath)) {
+								// JOptionPane.showMessageDialog(frame, "No
+								// image selected!");
+								sourcePath.setBackground(new Color(255, 50, 50));
+							} else {
+								copieFile();
+								theObject = new HolonObject(objectName.getText());
+								theObject.setElements(hElements);
+								theObject.setImage(imagePath);
+								controller.addObjectCategory(controller.searchCategory(givenCategory), theObject);
+								System.out.println(theObject.getImage());
+								System.out.println(givenCategory);
+								dispose();
+							}
 						}
 					}
 				});