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