From c5fb66e775092661fe3dd363794d80a9d49cfdff Mon Sep 17 00:00:00 2001
From: Dirk Hohndel <dirk@hohndel.org>
Date: Wed, 24 Oct 2018 21:21:38 +0100
Subject: Mobile/filtering: update nr of dives shown in a trip when filtering

Whenever the filter changes, simply walk the filtered dive list and ensure
that we have the correct count for dives that match this filter.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 qt-models/divelistmodel.cpp | 21 +++++++++++++++++++++
 qt-models/divelistmodel.h   |  1 +
 2 files changed, 22 insertions(+)

diff --git a/qt-models/divelistmodel.cpp b/qt-models/divelistmodel.cpp
index a12a1d9fa..75eb9137a 100644
--- a/qt-models/divelistmodel.cpp
+++ b/qt-models/divelistmodel.cpp
@@ -27,6 +27,7 @@ void DiveListSortModel::updateFilterState()
 		QString fullText = includeNotes? mySourceModel->at(i)->fullText() : mySourceModel->at(i)->fullTextNoNotes();
 		filteredRows.at(i) = fullText.contains(filterString, cs);
 	}
+	updateDivesShownInTrips();
 }
 
 void DiveListSortModel::setSourceModel(QAbstractItemModel *sourceModel)
@@ -38,6 +39,7 @@ void DiveListSortModel::setFilter(QString f)
 	filterString = f;
 	updateFilterState();
 	invalidateFilter();
+	updateDivesShownInTrips();
 }
 
 void DiveListSortModel::resetFilter()
@@ -45,6 +47,7 @@ void DiveListSortModel::resetFilter()
 	filterString = "";
 	filteredRows.clear();
 	invalidateFilter();
+	updateDivesShownInTrips();
 }
 
 // filtering is way too slow on mobile. Maybe we should roll our own?
@@ -91,6 +94,24 @@ void DiveListSortModel::addAllDives()
 	updateFilterState();
 }
 
+void DiveListSortModel::updateDivesShownInTrips()
+{
+	// if filtering is active, reset all the counts to zero, otherwise set them to the full count
+	struct dive_trip *dt = dive_trip_list;
+	int rc = rowCount();
+	while (dt) {
+		dt->showndives = rc ? 0 : dt->nrdives;
+		dt = dt->next;
+	}
+	for (int i = 0; i < rowCount(); i++) {
+		QVariant v = data(index(i, 0), DiveListModel::DiveRole);
+		DiveObjectHelper *d = v.value<DiveObjectHelper *>();
+		dt = d->getDive()->divetrip;
+		if (dt)
+			dt->showndives++;
+	}
+}
+
 DiveListModel *DiveListModel::m_instance = NULL;
 
 DiveListModel::DiveListModel(QObject *parent) : QAbstractListModel(parent)
diff --git a/qt-models/divelistmodel.h b/qt-models/divelistmodel.h
index dcfc573ee..05c3b76ff 100644
--- a/qt-models/divelistmodel.h
+++ b/qt-models/divelistmodel.h
@@ -21,6 +21,7 @@ public slots:
 	void setFilter(QString f);
 	void resetFilter();
 	int shown();
+	void updateDivesShownInTrips();
 protected:
 	bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
 private:
-- 
cgit v1.2.3-70-g09d2