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undo: implement renaming of events

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There is a slight complexity here owing to the fact that the profile
works on a copy of the current dive: We get a copy of the event and
have to search for the original event in the current dive. This
could be done in the undo command. Nevertheless, here we do it in
the profile so that when in the future the profile can work on a
non-copied dive we can simply remove this function.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-03-04 18:13:02 +01:00
parent f9fe6d759f
commit ab8e317b28
7 changed files with 87 additions and 10 deletions
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20
core/dive.c
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@ -166,6 +166,11 @@ struct event *create_event(unsigned int time, int type, int flags, int value, co
return ev;
}
struct event *clone_event_rename(const struct event *ev, const char *name)
{
return create_event(ev->time.seconds, ev->type, ev->flags, ev->value, name);
}
void add_event_to_dc(struct divecomputer *dc, struct event *ev)
{
struct event **p;
@ -192,7 +197,20 @@ struct event *add_event(struct divecomputer *dc, unsigned int time, int type, in
return ev;
}
static int same_event(const struct event *a, const struct event *b)
/* Substitutes an event in a divecomputer for another. No reordering is performed! */
void swap_event(struct divecomputer *dc, struct event *from, struct event *to)
{
for (struct event **ep = &dc->events; *ep; ep = &(*ep)->next) {
if (*ep == from) {
to->next = from->next;
*ep = to;
from->next = NULL; // For good measure.
break;
}
}
}
bool same_event(const struct event *a, const struct event *b)
{
if (a->time.seconds != b->time.seconds)
return 0;