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Improve multi dive tag list edits

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The old behavior was kind of crude. Just smack the tags that were on the
displayed dive on all selected dives.

This seems to make more sense. We figure out which tags were added to the
displayed dive and add them to all selected dives. And we remove all tags
that were removed from the displayed dive from all selected dives.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2015-05-02 12:18:12 -07:00
parent e077206bb8
commit 02ed0ccabb
1 changed files with 31 additions and 5 deletions
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36
qt-ui/maintab.cpp
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@ -1091,23 +1091,49 @@ void MainTab::on_timeEdit_timeChanged(const QTime &time)
}
// changing the tags on multiple dives is semantically strange - what's the right thing to do?
// here's what I think... add the tags that were added to the displayed dive and remove the tags
// that were removed from it
void MainTab::saveTags()
{
struct dive *cd = current_dive;
struct tag_entry *added_list = NULL;
struct tag_entry *removed_list = NULL;
struct tag_entry *tl;
taglist_free(displayed_dive.tag_list);
displayed_dive.tag_list = NULL;
Q_FOREACH (const QString& tag, ui.tagWidget->getBlockStringList())
taglist_add_tag(&displayed_dive.tag_list, tag.toUtf8().data());
taglist_cleanup(&displayed_dive.tag_list);
// figure out which tags were added and which tags were removed
added_list = taglist_added(cd->tag_list, displayed_dive.tag_list);
removed_list = taglist_added(displayed_dive.tag_list, cd->tag_list);
// dump_taglist("added tags:", added_list);
// dump_taglist("removed tags:", removed_list);
// we need to check if the tags were changed before just overwriting them
if (taglist_equal(displayed_dive.tag_list, cd->tag_list))
if (added_list == NULL && removed_list == NULL)
return;
MODIFY_SELECTED_DIVES(
QString tag;
// create a new tag list and all the existing tags that were not
// removed and then all the added tags
struct tag_entry *new_tag_list;
new_tag_list = NULL;
tl = mydive->tag_list;
while (tl) {
if (!taglist_contains(removed_list, tl->tag->name))
taglist_add_tag(&new_tag_list, tl->tag->name);
tl = tl->next;
}
tl = added_list;
while (tl) {
taglist_add_tag(&new_tag_list, tl->tag->name);
tl = tl->next;
}
taglist_free(mydive->tag_list);
mydive->tag_list = NULL;
Q_FOREACH (tag, ui.tagWidget->getBlockStringList())
taglist_add_tag(&mydive->tag_list, tag.toUtf8().data());
mydive->tag_list = new_tag_list;
);
}