Don't show tanks that aren't used during a dive

Some dive computers will always download all tanks that they store, not
just the ones used in a dive. Most people only want to see the tanks that
they actually used during the dive (and for the others there's an option
to go back to the old behavior, just in case).

All this is only in memory / during runtime. If the dive computer provided
the extra data we will not throw it away.

Fixes #373

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/pref.h b/pref.h
index 37beb8faa..e3f0a545a 100644
--- a/pref.h
+++ b/pref.h
@@ -37,6 +37,7 @@ struct preferences {
 	short unit_system;
 	struct units units;
 	short show_sac;
+	bool display_unused_tanks;
 };
 enum unit_system_values { METRIC, IMPERIAL, PERSONALIZE };