Filter: add reference counting for dive-site mode

The dive-site-edit and dive-site-table tabs both put the filter
into a special dive-site mode. When switching between both, it
could happen that the one got its show befor the other got
its hide event.

Thus, the first would start dive-site filtering and the second
stop it. Now the app was not in filter mode even though it should.

To solve this problem, add reference counting for the filter's
dive-site mode. In both tabs call the enter/exit functions
on show/hide. In the dive-site-table tab, when the selection
changes, use a set function that doesn't modify the reference count.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-05-05 12:18:04 +02:00 committed by Dirk Hohndel
parent cd5489e08d
commit 065423896d
4 changed files with 29 additions and 4 deletions

View file

@ -83,7 +83,7 @@ void TabDiveSite::on_filterText_textChanged(const QString &text)
model.setFilter(text);
}
void TabDiveSite::updateFilter()
QVector<dive_site *> TabDiveSite::selectedDiveSites()
{
const QModelIndexList indexes = ui.diveSites->view()->selectionModel()->selectedIndexes();
QVector<dive_site *> sites;
@ -92,7 +92,12 @@ void TabDiveSite::updateFilter()
struct dive_site *ds = model.getDiveSite(idx);
sites.append(ds);
}
MultiFilterSortModel::instance()->startFilterDiveSites(sites);
return sites;
}
void TabDiveSite::updateFilter()
{
MultiFilterSortModel::instance()->setFilterDiveSite(selectedDiveSites());
}
void TabDiveSite::selectionChanged(const QItemSelection &, const QItemSelection &)
@ -104,7 +109,7 @@ void TabDiveSite::showEvent(QShowEvent *)
{
// If the user switches to the dive site tab and there was already a selection,
// filter on that selection.
updateFilter();
MultiFilterSortModel::instance()->startFilterDiveSites(selectedDiveSites());
}
void TabDiveSite::hideEvent(QHideEvent *)

View file

@ -22,6 +22,7 @@ private slots:
private:
Ui::TabDiveSite ui;
DiveSiteSortedModel model;
QVector<dive_site *> selectedDiveSites();
void updateFilter();
void hideEvent(QHideEvent *) override;
void showEvent(QShowEvent *) override;