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Dive trip model: send changed signals if visibility changed in trips

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To avoid having to do full filter reloads, send dive-changed signals
for dives in trips when the shown-status changed. But only for trips
where not all dives are hidden. Because for those, the plan is to
hide the trip as a whole.

Implement the signal sending in its own function so that it can be
reused for top-level items and the list-view.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-11-19 21:40:03 +01:00 • committed by bstoeger
parent 3cc6576913
commit 4ca65894c8
2 changed files with 38 additions and 4 deletions
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4
qt-models/divetripmodel.h
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@ -6,6 +6,8 @@
#include "core/subsurface-qt/DiveListNotifier.h"
#include <QAbstractItemModel>
struct DiveFilter;
// There are two different representations of the dive list:
// 1) Tree view: two-level model where dives are grouped by trips
// 2) List view: one-level model where dives are sorted by one out
@ -98,6 +100,7 @@ protected:
// Access trip and dive data
static QVariant diveData(const struct dive *d, int column, int role);
static QVariant tripData(const dive_trip *trip, int column, int role);
void sendShownChangedSignals(const std::vector<char> &changed, quintptr parentIndex);
virtual dive *diveOrNull(const QModelIndex &index) const = 0; // Returns a dive if this index represents a dive, null otherwise
virtual void clearData() = 0;
@ -130,6 +133,7 @@ private:
void recalculateFilter();
void divesChangedTrip(dive_trip *trip, const QVector<dive *> &dives);
void divesTimeChangedTrip(dive_trip *trip, timestamp_t delta, const QVector<dive *> &dives);
bool calculateFilterForTrip(const std::vector<dive *> &dives, const DiveFilter *filter, int parentIndex);
// The tree model has two levels. At the top level, we have either trips or dives
// that do not belong to trips. Such a top-level item is represented by the "Item"