altosui: Fix the 'Graph' button on the landed tab

[fw/altos] / altosui / AltosLanded.java

diff --git a/altosui/AltosLanded.java b/altosui/AltosLanded.java
index 50c1ea31fe9e3105b8134fdd8ba1d01404f71084..7c50adacba874d053c892e913277dc71330083d0 100644 (file)
--- a/altosui/AltosLanded.java
+++ b/altosui/AltosLanded.java
@@ -151,6 +151,12 @@ public class AltosLanded extends AltosUIFlightTab implements ActionListener {
                return "Landed";
        }
 
+       public void show(AltosState state, AltosListenerState listener_state) {
+               super.show(state, listener_state);
+               if (reader.backing_file() != null)
+                       graph.setEnabled(true);
+       }
+
        public AltosLanded(AltosFlightReader in_reader) {
                reader = in_reader;