From: Keith Packard <keithp@keithp.com>
Date: Wed, 17 Oct 2012 00:13:04 +0000 (-0700)
Subject: altosui: Handle missing pad distance in descent tab
X-Git-Tag: 1.1.9.1~12
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=ef9cb19d8b210e02eaa1c657833c1bd5fc619ad8

altosui: Handle missing pad distance in descent tab

When the GPS isn't locked, the distance from the pad cannot be
computed and is left missing. Not crashing in this case is more useful.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/altosui/AltosDescent.java b/altosui/AltosDescent.java
index e9ff590b..a71cdc10 100644
--- a/altosui/AltosDescent.java
+++ b/altosui/AltosDescent.java
@@ -309,7 +309,10 @@ public class AltosDescent extends JComponent implements AltosFlightDisplay {
 
 	class Distance extends DescentValue {
 		void show(AltosState state, int crc_errors) {
-			show(AltosConvert.distance, state.from_pad.distance);
+			if (state.from_pad != null)
+				show(AltosConvert.distance, state.from_pad.distance);
+			else
+				show("???");
 		}
 
 		public Distance (GridBagLayout layout, int x, int y) {