Manually add gas changes to a dive

Create a little widget that lists all the gases / tanks we know about and
allow the user to pick one of them.

Turns out that add_event only added events at the end of the list - but we
treat that list as chronologically sorted. So I fixed that little
mis-feature as well.

This does raise the question whether we need the inverse operation
(removing a gas change). And if there are other things that we should be
able to manually edit, now that we have the infrastructure for this neat
little context menu...

See #60 -- this doesn't address all of the issues mentioned there, but at
least deals with the 'headline' of the feature request...

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

1 files changed, 1 insertions, 1 deletions

diff --git a/display-gtk.h b/display-gtk.h
index fb7eaf254..498fceda5 100644
--- a/display-gtk.h
+++ b/display-gtk.h
@@ -61,7 +61,7 @@ extern GtkWidget *extended_dive_info_widget(void);
 extern GtkWidget *equipment_widget(int w_idx);
 extern GtkWidget *single_stats_widget(void);
 extern GtkWidget *total_stats_widget(void);
-
+extern int select_cylinder(struct dive *dive, int when);
 extern GtkWidget *dive_list_create(void);
 extern void dive_list_destroy(void);
 extern void info_widget_destroy(void);