refs #312, remove unwanted widget which is required only in GUI builder

src/blackgui/components/invisibleinfoareacomponent.cpp

@@ -24,7 +24,13 @@ namespace BlackGui
             ui(new Ui::CInvisibleInfoAreaComponent)
         {
             ui->setupUi(this);
-            this->ui->comp_Navigator->allowStatusBar(false);
+
+            // remove widgets just required for GUI builder, but not needed for promoted component
+            this->ui->comp_Navigator->layout()->removeWidget(this->ui->qw_NavigatorDummy);
+            delete this->ui->qw_NavigatorDummy;
+            this->ui->qw_NavigatorDummy = nullptr;
+
+            // init area
             this->initInfoArea();
         }
 

src/blackgui/components/invisibleinfoareacomponent.ui

@@ -30,7 +30,7 @@
    <attribute name="dockWidgetArea">
     <number>1</number>
    </attribute>
-   <widget class="QWidget" name="qw_Navigaor"/>
+   <widget class="QWidget" name="qw_NavigatorDummy"/>
   </widget>
  </widget>
  <customwidgets>