FIX ui update on action/rotate

src/main/java/de/ph87/electro/circuit/Circuit.java

@@ -93,7 +93,7 @@ public class Circuit {
     dirty = true;
   }
 
-  private void evaluate() {
+  public void evaluate() {
     Calculation.calculate(this);
     parts.forEach(Part::render);
   }

src/main/java/de/ph87/electro/circuit/CircuitPanelMouseAdapter.java

@@ -52,17 +52,19 @@ class CircuitPanelMouseAdapter extends MouseAdapter {
       }
     }
 
-    final Optional<Part> partOptional = circuit.findPartByPosition(position);
+    circuit.findPartByPosition(position).ifPresent(part -> {
       switch (event.getButton()) {
         case BUTTON1:
-        partOptional.ifPresent(Part::action);
+          part.action();
+          circuit.evaluate();
           circuitPanel.repaint();
           break;
         case BUTTON3:
-        partOptional.ifPresent(Part::clockwise);
+          part.clockwise();
           circuitPanel.repaint();
           break;
       }
+    });
   }
 
   @Override