Display CCR setpoint values on the po2 graph

When a CCR dive is viewed and the toolbar button for PO2 is activated,
both the PO2 (green line) and the O2 setpoint (red line) are shown.
This allows evaluation of the PO2 in the CCR loop with respect to the
pre-configured O2 setpoint.

The setpoint graph can be disabled from the Preferences/Graphs tab
by checking the appropriate checkbox.

Signed-off-by: willem ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/pref.h b/pref.h
index f43c32084..49e1afaab 100644
--- a/pref.h
+++ b/pref.h
@@ -43,6 +43,7 @@ struct preferences {
 	short gfhigh;
 	int animation_speed;
 	bool gf_low_at_maxdepth;
+	bool show_ccr_setpoint;
 	short display_invalid_dives;
 	short unit_system;
 	struct units units;