MAnaging state of puck load button

src/main/java/ch/psi/mxsc/Controller.java

@@ -460,7 +460,7 @@ public class Controller {
         } catch (Exception ex) {
             return null;
         }
-    }        
+    }    
 
     public void setServiceMode(boolean value){
         try{

src/main/java/ch/psi/mxsc/MainPanel.java

@@ -594,6 +594,19 @@ public class MainPanel extends Panel {
         }
     }
     
+    public boolean isCoverPosDetected(){
+        try{
+            return textCoverDet.getText().contains(", ");
+        } catch(Exception ex){
+            return false;
+        }
+    }
+    
+    void updateButtonSampleLoadState(){
+         boolean doors_open = !Controller.getInstance().isDoorClosed();
+         boolean cover_pos_detected = isCoverPosDetected();                   
+         buttonSampleLoad.setEnabled(doors_open && !cover_pos_detected);     
+    }
     void updatePsysSafety(Object value) {
         if ((value == null) || !(value instanceof Boolean)) {
             ledPsysSafety.setColor(Color.BLACK);
@@ -611,7 +624,7 @@ public class MainPanel extends Panel {
                getLogger().log(Level.WARNING, null, ex);
             }         
         }
-        buttonSampleLoad.setEnabled(!Boolean.TRUE.equals(value));        
+        updateButtonSampleLoadState();
    }
 
     void updateMode(Object value) {
@@ -1043,7 +1056,8 @@ public class MainPanel extends Panel {
                             getLogger().log(Level.WARNING, null, e);
                         }                          
                     }
-                }
+                }                
+                updateButtonSampleLoadState();
                 String text;
                 try {                    
                     List cache = (List)eval("get_cover_location_cache()", true);