Deselect dives that are no longer shown as the dive list is filtered

This cleans up the way we ensure that all dives are handled as the dive
list is filtered.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

divelist.c

@@ -873,6 +873,16 @@ void select_dives_in_trip(struct dive_trip *trip)
 			select_dive(get_divenr(dive));
 }
 
+void filter_dive(struct dive *d, bool shown)
+{
+	if (!d)
+		return;
+	d->hidden_by_filter = !shown;
+	if (!shown && d->selected)
+		deselect_dive(get_divenr(d));
+}
+
+
 /* This only gets called with non-NULL trips.
  * It does not combine notes or location, just picks the first one
  * (or the second one if the first one is empty */

divelist.h

@@ -32,6 +32,7 @@ extern void select_dive(int idx);
 extern void deselect_dive(int idx);
 extern void select_dives_in_trip(struct dive_trip *trip);
 extern void deselect_dives_in_trip(struct dive_trip *trip);
+extern void filter_dive(struct dive *d, bool shown);
 extern void combine_trips(struct dive_trip *trip_a, struct dive_trip *trip_b);
 extern void find_new_trip_start_time(dive_trip_t *trip);
 extern struct dive *first_selected_dive();

qt-ui/divelistview.cpp

@@ -314,6 +314,8 @@ void DiveListView::selectDive(int i, bool scrollto, bool toggle)
 void DiveListView::selectDives(const QList<int> &newDiveSelection)
 {
 	int firstInList, newSelection;
+	struct dive *d;
+
 	if (!newDiveSelection.count())
 		return;
 
@@ -335,7 +337,8 @@ void DiveListView::selectDives(const QList<int> &newDiveSelection)
 			newSelection = dive_table.nr - 1;
 		if (newSelection == firstInList)
 			break;
-		selectDive(newSelection);
+		if ((d = get_dive(newSelection)) != NULL && !d->hidden_by_filter)
+			selectDive(newSelection);
 	}
 	QSortFilterProxyModel *m = qobject_cast<QSortFilterProxyModel *>(model());
 	QModelIndexList idxList = m->match(m->index(0, 0), DiveTripModel::DIVE_IDX, selected_dive, 2, Qt::MatchRecursive);

qt-ui/models.cpp

@@ -2366,7 +2366,9 @@ bool TagFilterModel::filterRow(int source_row, const QModelIndex &source_parent,
 	QVariant diveVariant = sourceModel->data(index0, DiveTripModel::DIVE_ROLE);
 	struct dive *d = (struct dive *)diveVariant.value<void *>();
 
-	return doFilter(d, index0, sourceModel);
+	bool show = doFilter(d, index0, sourceModel);
+	filter_dive(d, show);
+	return show;
 }
 
 BuddyFilterModel::BuddyFilterModel(QObject *parent) : QStringListModel(parent)
@@ -2628,11 +2630,7 @@ bool MultiFilterSortModel::filterAcceptsRow(int source_row, const QModelIndex &s
 			shouldShow = false;
 	}
 	// if it's a dive, mark it accordingly
-	if (d) {
+	filter_dive(d, shouldShow);
-		if (d->selected)
-			d->selected = shouldShow;
-		d->hidden_by_filter = !shouldShow;
-	}
 	return shouldShow;
 }
 
@@ -2656,10 +2654,12 @@ void MultiFilterSortModel::myInvalidate()
 	} else {
 		// otherwise find the dives that should still be selected (the filter above unselected any
 		// dive that's no longer visible) and select them again
+		QList<int>curSelectedDives;
 		for_each_dive (i, d) {
 			if(d->selected)
-				dlv->selectDive(get_idx_by_uniq_id(d->id));
+				curSelectedDives.append(get_divenr(d));
 		}
+		dlv->selectDives(curSelectedDives);
 	}
 }