Populate Inspector on separate Thread

src/ui/view/inspector/InspectorTable.java

@@ -58,8 +58,9 @@ public class InspectorTable extends JPanel {
 	private final static Color selectedColor = new Color(126, 186, 255);
 	private final static Color borderColor = new Color(171, 173, 179);
 	//Events
-	public Action<Set<HolonElement>> OnElementSelectionChanged = new Action<>(); 
-
+	public Action<Set<HolonElement>> OnElementSelectionChanged = new Action<>();
+	private Thread populateRowsThread; 
+	private boolean abortThread = false;
 	public InspectorTable(Control control) {
 		control.OnSelectionChanged.addListener(() -> update_ui());
 		this.control = control;
@@ -182,22 +183,44 @@ public class InspectorTable extends JPanel {
 	}
 
 	private void update_ui() {
-		Stream<HolonElement> elements = extractElements(control.getModel().getSelectedObjects());
-		// TODO Pooling
-		this.removeAll();
-		elementRows.clear();
-		generateHeader();
-		elements.forEach(element -> elementRows.add(new ElementRow(element)));
-		this.add(buttonPanel, "span");
-		boolean isAtLeastOneHolonObjectSelected = 
-				control.getModel().getSelectedObjects().stream().anyMatch(object -> object instanceof HolonObject);
-		this.addButton.setEnabled(isAtLeastOneHolonObjectSelected);
-		duplicateButton.setEnabled(false);
-		deleteButton.setEnabled(false);
-		selectAllCheckBox.setSelectionState(State.unselected);
-		revalidate();
-		repaint();
-		this.OnElementSelectionChanged.broadcast(new HashSet<HolonElement>());
+		
+		if(populateRowsThread != null) {
+			try {
+				abortThread = true;
+				populateRowsThread.join();
+				abortThread = false;
+			} catch (InterruptedException e) {
+				e.printStackTrace();
+			}
+		}
+		populateRowsThread = new Thread(() -> {
+			Stream<HolonElement> elements = extractElements(control.getModel().getSelectedObjects());
+			List<HolonElement> elementList = elements.toList();
+			this.removeAll();
+			elementRows.clear();
+			// TODO Pooling
+			generateHeader();
+			for(HolonElement element : elementList)
+			{
+				if(abortThread) break;
+				elementRows.add(new ElementRow(element));
+				revalidate();
+				repaint();
+			}
+			
+			this.add(buttonPanel, "span");
+			boolean isAtLeastOneHolonObjectSelected = 
+					control.getModel().getSelectedObjects().stream().anyMatch(object -> object instanceof HolonObject);
+			this.addButton.setEnabled(isAtLeastOneHolonObjectSelected);
+			duplicateButton.setEnabled(false);
+			deleteButton.setEnabled(false);
+			selectAllCheckBox.setSelectionState(State.unselected);
+			revalidate();
+			repaint();
+			this.OnElementSelectionChanged.broadcast(new HashSet<HolonElement>());
+		});
+		populateRowsThread.start();
+		
 	}