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selection: move dive selection, current dive and dc through signals

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To reduce access of global variables.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2022-09-03 22:45:08 +02:00 • committed by bstoeger
parent 616dbd9671
commit 72a15c46d9
10 changed files with 47 additions and 36 deletions
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37
desktop-widgets/divelistview.cpp
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@ -225,7 +225,7 @@ void DiveListView::reset()
}
// If items were selected, inform the selection model
void DiveListView::diveSelectionChanged(const QVector<QModelIndex> &indices, QModelIndex currentDive)
void DiveListView::diveSelectionChanged(const QVector<QModelIndex> &indices, QModelIndex currentDive, int currentDC)
{
// This is the entry point for programmatical selection changes.
// Set a flag so that selection changes are not further processed,
@ -258,7 +258,14 @@ void DiveListView::diveSelectionChanged(const QVector<QModelIndex> &indices, QMo
}
setAnimated(oldAnimated);
selectionChangeDone();
// This is truly sad, but taking the list of selected indices and turning them
// into dives turned out to be unreasonably slow. Therefore, let's access
// the core list directly.
std::vector<dive *> selected = getDiveSelection();
selectDiveSitesOnMap(selected);
struct dive *current = currentDive.data(DiveTripModelBase::DIVE_ROLE).value<struct dive *>();
emit divesSelected(selected, current, currentDC);
programmaticalSelectionChange = false;
// Set the currently activated row.
@ -305,7 +312,14 @@ void DiveListView::tripSelected(QModelIndex trip, QModelIndex currentDive)
// funny side-effects).
selectionModel()->setCurrentIndex(currentDive, QItemSelectionModel::Current);
selectionChangeDone();
// This is truly sad, but taking the list of selected indices and turning them
// into dives turned out to be unreasonably slow. Therefore, let's access
// the core list directly.
std::vector<dive *> selection = getDiveSelection();
selectDiveSitesOnMap(selection);
struct dive *current = currentDive.data(DiveTripModelBase::DIVE_ROLE).value<struct dive *>();
emit divesSelected(selection, current, -1);
programmaticalSelectionChange = false;
}
@ -415,7 +429,7 @@ void DiveListView::currentChanged(const QModelIndex &current, const QModelIndex&
scrollTo(current);
}
void DiveListView::selectionChangeDone()
void DiveListView::selectDiveSitesOnMap(const std::vector<dive *> &dives)
{
#ifdef MAP_SUPPORT
// When receiving the divesSelected signal the main window will
@ -425,21 +439,15 @@ void DiveListView::selectionChangeDone()
// the dive-site selection is controlled by the filter not
// by the selected dives.
if (!DiveFilter::instance()->diveSiteMode()) {
// This is truly sad, but taking the list of selected indices and turning them
// into dive sites turned out to be unreasonably slow. Therefore, let's access
// the core list directly. In my tests, this went down from 700 to 0 ms!
QVector<dive_site *> selectedSites;
selectedSites.reserve(amount_selected);
int i;
dive *d;
for_each_dive(i, d) {
if (d->selected && !d->hidden_by_filter && d->dive_site && !selectedSites.contains(d->dive_site))
selectedSites.reserve(dives.size());
for (dive *d: dives) {
if (!d->hidden_by_filter && d->dive_site && !selectedSites.contains(d->dive_site))
selectedSites.push_back(d->dive_site);
}
MapWidget::instance()->setSelected(selectedSites);
}
#endif
emit divesSelected();
}
void DiveListView::selectTripItems(QModelIndex index)
@ -524,7 +532,8 @@ void DiveListView::selectionChanged(const QItemSelection &selected, const QItemS
// Display the new, processed, selection
QTreeView::selectionChanged(selectionModel()->selection(), newDeselected);
selectionChangeDone();
selectDiveSitesOnMap(selection);
emit divesSelected(selection, newCurrent, -1);
programmaticalSelectionChange = false;
}