refs #526, forms

* fixed read only
* in read only mode no warnings (then we just do mapping and warnings do not help)

src/blackgui/editors/distributorform.cpp

@@ -67,6 +67,11 @@ namespace BlackGui
                 // optional distributor
                 msgs = distributor.validate();
             }
+            if (this->isReadOnly())
+            {
+                // in readonly I cannot change the data anyway, so skip warnings
+                msgs.removeWarningsAndBelow();
+            }
             this->ui->val_Indicator->setState(msgs);
             return msgs;
         }