Show ceilings for individual tissues

I think that displaying tissue loadings either as pressure or as
percentages is not very intuitive but that it makes much more sense when
translated to ceiling depths.

This change enables just that for the 16 tissues in our calculated ceiling
and visualizes this in the profile graph.

There is a checkbox in the preferences to turn this on. If enabled, all
tissues having non-trivial ceilings are also shown in the info box.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/pref.h b/pref.h
index 7bf71b44c..376cc4a71 100644
--- a/pref.h
+++ b/pref.h
@@ -39,6 +39,7 @@ struct preferences {
 	short profile_red_ceiling;
 	short profile_calc_ceiling;
 	short calc_ceiling_3m_incr;
+	short calc_all_tissues;
 	short gflow;
 	short gfhigh;
 	int map_provider;