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// SPDX-License-Identifier: GPL-2.0
// The DiveListNotifier emits signals when the dive-list changes (dives/trips created/deleted/moved)
// Note that vectors are passed by reference, so this will only work for signals inside the UI thread!
#ifndef DIVELISTNOTIFIER_H
#define DIVELISTNOTIFIER_H
#include "core/dive.h"
#include <QObject>
class DiveListNotifier : public QObject {
Q_OBJECT
signals:
// Note that there are no signals for trips being added / created / time-shifted,
// because these events never happen without a dive being added / created / time-shifted.
// We send one divesAdded, divesDeleted, divesChanged and divesTimeChanged signal per trip
// (non-associated dives being considered part of the null trip). This is ideal for the
// tree-view, but might be not-so-perfect for the list view, if trips intermingle or
// the deletion spans multiple trips. But most of the time only dives of a single trip
// will be affected and trips don't overlap, so these considerations are moot.
// Notes:
// - The dives are always sorted by start-time.
// - The "trip" arguments are null for top-level-dives.
void divesAdded(dive_trip *trip, bool addTrip, const QVector<dive *> &dives);
void divesDeleted(dive_trip *trip, bool deleteTrip, const QVector<dive *> &dives);
void divesChanged(dive_trip *trip, const QVector<dive *> &dives);
void divesMovedBetweenTrips(dive_trip *from, dive_trip *to, bool deleteFrom, bool createTo, const QVector<dive *> &dives);
void divesTimeChanged(dive_trip *trip, timestamp_t delta, const QVector<dive *> &dives);
};
// The DiveListNotifier class has no state and no constructor.
// We can simply define it as a global object.
extern DiveListNotifier diveListNotifier;
#endif
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