Add a notebook for cylinder information

Ok, so it's not connected to anything yet, and the tank choices (that
don't do anything) are some random hardcoded collection, but maybe it
will do something some day.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/display.h b/display.h
index e2e217ff0..d499fc7fc 100644
--- a/display.h
+++ b/display.h
@@ -8,6 +8,7 @@
 extern GtkWidget *dive_profile_widget(void);
 extern GtkWidget *dive_info_frame(void);
 extern GtkWidget *extended_dive_info_widget(void);
+extern GtkWidget *cylinder_management_widget(void);
 extern void update_dive_info(struct dive *dive);
 extern void repaint_dive(void);