QT: In the plc editor, only one of the connection/nav/node palettes are shown at a time.

wb/lib/wb/qt/wb_foe_qt.cqt

@@ -292,11 +292,12 @@ void WFoeQtWidget::activate_palette_con()
   if (sender() != foe->view_conpal) {
     foe->view_conpal->setChecked(true);
   }
-  bool set = foe->view_conpal->isChecked();
 
-  foe->con_palette->setVisible(set);
-  foe->con_palette_managed = set;
-  foe->con_palctx->set_inputfocus(set);
+  foe->nav_palette->setVisible(false);
+  foe->node_palette->setVisible(false);
+  foe->con_palette->setVisible(true);
+  foe->con_palette_managed = 1;
+  foe->con_palctx->set_inputfocus(1);
 }
 
 // Display or hide the connection palette.
@@ -305,11 +306,12 @@ void WFoeQtWidget::activate_palette_object()
   if (sender() != foe->view_objectpal) {
     foe->view_objectpal->setChecked(true);
   }
-  bool set = foe->view_objectpal->isChecked();
 
-  foe->node_palette->setVisible(set);
-  foe->node_palette_managed = set;
-  foe->node_palctx->set_inputfocus(set);
+  foe->con_palette->setVisible(false);
+  foe->nav_palette->setVisible(false);
+  foe->node_palette->setVisible(true);
+  foe->node_palette_managed = 1;
+  foe->node_palctx->set_inputfocus(1);
 }
 
 void WFoeQtWidget::activate_confeedback(bool set)
@@ -348,11 +350,12 @@ void WFoeQtWidget::activate_palette_plant()
   if (sender() != foe->view_plantpal) {
     foe->view_plantpal->setChecked(true);
   }
-  bool set = foe->view_plantpal->isChecked();
 
-  foe->nav_palette->setVisible(set);
-  foe->nav_palette_managed = set;
-  foe->navctx->set_inputfocus(set);
+  foe->con_palette->setVisible(false);
+  foe->node_palette->setVisible(false);
+  foe->nav_palette->setVisible(true);
+  foe->nav_palette_managed = 1;
+  foe->navctx->set_inputfocus(1);
 }
 
 void WFoeQtWidget::activate_refcon(bool set)