Laser indicating loaded pucks

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

@@ -834,7 +834,7 @@ public class Controller {
         playSound("unmounted");
         logPuckDetectionChange(puck, false);
         onPuckUnmounted(puck);         
-    }
+    }        
 
     void linkPuckDatamatrix(Puck puck, String datamatrix, boolean showMessage) {
 //        if ( ((puck.getId()==null) && (datamatrix!=null)) ||
@@ -884,6 +884,15 @@ public class Controller {
             return null;
         }
     }   
+    
+    String getPuckFromDatamatrix(String dm){
+        try {
+            return (String) Context.getInstance().evalLineBackground("get_puck_from_datamatrix('" + dm + "')");
+        } catch (Exception ex) {
+            return null;
+        }        
+        
+    }
 
     void askPuckDatamatrix(Puck puck) {
         if ((dialogAskPuckDatamatrix != null) && (dialogAskPuckDatamatrix.isShowing())) {