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fix copy/paste of dive-site

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The copy/pasting of dive-sites was fundamentally broken in at least two
ways:

1) The dive-site pointer in struct dive was simply overwritten, which
   breaks internal consistency. Also, no dive-site changed signals where
   sent.

2) The copied dive-site was stored as a pointer in a struct dive. Thus,
   the user could copy a dive, then delete the dive-site and paste.
   This would lead to a dangling pointer and ultimately crash the
   application.

Fix this by storing the UUID of the dive-site, not a pointer.
To do that, don't store a copy of the dive, but collect all
the data in a `dive_paste_data` structure.
If the dive site has been deleted on paste, do nothing.
Send the appropriate signals on pasting.

The mobile version had an additional bug: It kept a pointer to the
dive to be copied, which might become stale by undo.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-08-13 07:04:52 +02:00 • committed by Michael Keller
parent 48b4308a7d
commit 152e6966c9
17 changed files with 359 additions and 425 deletions
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34
core/dive.cpp
View file

@ -203,40 +203,6 @@ void copy_dive(const struct dive *s, struct dive *d)
d->invalidate_cache();
}
#define CONDITIONAL_COPY_STRING(_component) \
if (what._component) \
d->_component = s->_component
// copy elements, depending on bits in what that are set
void selective_copy_dive(const struct dive *s, struct dive *d, struct dive_components what, bool clear)
{
if (clear)
d->clear();
CONDITIONAL_COPY_STRING(notes);
CONDITIONAL_COPY_STRING(diveguide);
CONDITIONAL_COPY_STRING(buddy);
CONDITIONAL_COPY_STRING(suit);
if (what.rating)
d->rating = s->rating;
if (what.visibility)
d->visibility = s->visibility;
if (what.divesite) {
unregister_dive_from_dive_site(d);
s->dive_site->add_dive(d);
}
if (what.tags)
d->tags = s->tags;
if (what.cylinders)
copy_cylinder_types(s, d);
if (what.weights)
d->weightsystems = s->weightsystems;
if (what.number)
d->number = s->number;
if (what.when)
d->when = s->when;
}
#undef CONDITIONAL_COPY_STRING
/* copies all events from the given dive computer before a given time
this is used when editing a dive in the planner to preserve the events
of the old dive */