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05200f9266
The way we handle singletons in QML, QML insists on allocating the objects. This leads to a very idiosyncratic way of handling singletons: The global instance pointer is set in the constructor. Unify all these by implementing a "SillySingleton" template. All of the weird singleton-classes can derive from this template and don't have to bother with reimplementing the instance() function with all the safety-checks, etc. This serves firstly as documentation but also improves debugging as we will now see wanted and unwanted creation and destruction of these weird singletons. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "qt-models/gpslistmodel.h"
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#include "core/qthelper.h"
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#include <QVector>
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GpsListModel::GpsListModel(QObject *parent) : QAbstractListModel(parent)
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{
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}
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void GpsListModel::update()
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{
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QVector<gpsTracker> trackers = QVector<gpsTracker>::fromList(GpsLocation::instance()->currentGPSInfo().values());
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beginResetModel();
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m_gpsFixes = trackers;
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endResetModel();
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}
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void GpsListModel::clear()
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{
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if (m_gpsFixes.count()) {
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beginRemoveRows(QModelIndex(), 0, m_gpsFixes.count() - 1);
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m_gpsFixes.clear();
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endRemoveRows();
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}
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}
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int GpsListModel::rowCount(const QModelIndex&) const
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{
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return m_gpsFixes.count();
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}
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QVariant GpsListModel::data(const QModelIndex &index, int role) const
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{
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if (index.row() < 0 || index.row() > m_gpsFixes.count())
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return QVariant();
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const gpsTracker > = m_gpsFixes[index.row()];
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if (role == GpsDateRole)
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return get_short_dive_date_string(gt.when);
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else if (role == GpsWhenRole)
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return gt.when;
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else if (role == GpsNameRole)
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return gt.name;
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else if (role == GpsLatitudeRole)
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return QString::number(gt.location.lat.udeg / 1000000.0, 'f', 6);
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else if (role == GpsLongitudeRole)
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return QString::number(gt.location.lon.udeg / 1000000.0, 'f', 6);
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return QVariant();
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}
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QHash<int, QByteArray> GpsListModel::roleNames() const
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{
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QHash<int, QByteArray> roles;
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roles[GpsDateRole] = "date";
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roles[GpsWhenRole] = "when";
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roles[GpsNameRole] = "name";
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roles[GpsLatitudeRole] = "latitude";
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roles[GpsLongitudeRole] = "longitude";
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return roles;
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}
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