Allow modification and edits of trips

Now that we can load and store trips we needed to add the capability to
manipulate those trips as well.

This commit allows us remove a dive from a trip via a right click
operation on the dive list.

The commit also adds code to split a trip into two, to merge two trips and
to create a new trip out of a top level dive.

To make all that useful this commit changes the right-click on the dive
list to identify and act on the record we are actually on (instead of
acting on the selection).

The right-click menu ("context menu") changes depending which divelist
entry the mouse pointer is on - so different operations are offered,
depending on where you are.

We also add simplistic editing of location and notes for a trip (but the
notes are never displayed so far).

To make our lives easier this commit adds a link from the dive to the dive
trip it is part of. This allowed to hugely simplify the auto trip
generation algorithm (among other things). The downside of this change is
that there are now three different ways in which we express the
relationship of dives and trips: in the dive_trip_list, in the tree_model,
and with these pointers.  Somehow this screams that I should rethink my
data structures...

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

1 files changed, 2 insertions, 0 deletions

diff --git a/dive.h b/dive.h
index e15fd7763..384c7e4ca 100644
--- a/dive.h
+++ b/dive.h
@@ -241,6 +241,7 @@ extern const char *tripflag_names[NUM_TRIPFLAGS];
 struct dive {
 	int number;
 	tripflag_t tripflag;
+	struct dive *divetrip;
 	int selected;
 	time_t when;
 	char *location;
@@ -433,6 +434,7 @@ extern void remember_event(const char *eventname);
 extern void evn_foreach(void (*callback)(const char *, int *, void *), void *data);
 
 extern int add_new_dive(struct dive *dive);
+extern gboolean edit_trip(struct dive *trip);
 extern int edit_dive_info(struct dive *dive);
 extern int edit_multi_dive_info(struct dive *single_dive);
 extern void dive_list_update_dives(void);