Only offer to show dive on map if we have location information

This adds the "Show in map" menu entry to the divelist only if we
actually have a location to show.

Of course, having some way to visually see whether we have a GPS
location even before we show the menu would probably be good. Maybe a
marker in the "location" string or something. But in the meanwhile, at
least we don't have that menu entry if we have nothing to show.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/dive.h b/dive.h
index 1cb0613ee..2c8f18b94 100644
--- a/dive.h
+++ b/dive.h
@@ -342,6 +342,11 @@ struct dive {
 	struct divecomputer dc;
 };
 
+static inline int dive_has_location(struct dive *dive)
+{
+	return dive->latitude.udeg || dive->longitude.udeg;
+}
+
 /* Pa = N/m^2 - so we determine the weight (in N) of the mass of 10m
  * of water (and use standard salt water at 1.03kg per liter if we don't know salinity)
  * and add that to the surface pressure (or to 1013 if that's unknown) */