--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/chart/NilNaviChartStepper.java	Tue Jul 17 19:48:18 2018 +0200
@@ -0,0 +1,38 @@
+/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
+ * Software engineering by
+ *  Björnsen Beratende Ingenieure GmbH
+ *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+package org.dive4elements.river.client.client.ui.chart;
+
+/**
+ * Nil implementation that always return 0 as current station.
+ *
+ * @author Gernot Belger
+ */
+public class NilNaviChartStepper implements INaviChartStepper {
+
+    @Override
+    public double getCurrentKm() {
+        return 0;
+    }
+
+    @Override
+    public double stepForward() {
+        return 0;
+    }
+
+    @Override
+    public double stepBackward() {
+        return 0;
+    }
+
+    @Override
+    public double setValidCurrentKm(final double userInput) {
+        return 0;
+    }
+}
\ No newline at end of file