Revision control
++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "sensormodels.h"
++ #include "qsensor.h"
++ #include "qorientationsensor.h"
++ #include <QtCore/QDebug>
++ #include <qsensor.h>
++ #include <QMetaObject>
++ #include <QMetaProperty>
++
++ QT_BEGIN_NAMESPACE
++
++ QByteArray rangelistToByteArray(const qrangelist& list)
++ {
++ QStringList ranges;
++ for (const qrange &r : list) {
++ if (r.first == r.second)
++ ranges << QString("%1 Hz").arg(r.first);
++ else
++ ranges << QString("%1-%2 Hz").arg(r.first).arg(r.second);
++ }
++ if (ranges.size() > 0)
++ return ranges.join(", ").toLatin1();
++ return "-";
++ }
++
++ QByteArray outputrangelistToByteArray(const qoutputrangelist& list)
++ {
++ QStringList ranges;
++ for (const qoutputrange &r : list) {
++ ranges << QString("(%1, %2) += %3").arg(r.minimum).arg(r.maximum).arg(r.accuracy);
++ }
++ if (ranges.size() > 0)
++ return ranges.join(", ").toLatin1();
++ return "-";
++ }
++
++ AvailableSensorsModel::AvailableSensorsModel(QObject* parent) : QAbstractListModel(parent)
++ {
++ // Some valuetypes do not convert nicely to presentable strings, add converters for them
++ QMetaType::registerConverter<qrangelist, QByteArray>(rangelistToByteArray);
++ QMetaType::registerConverter<qoutputrangelist, QByteArray>(outputrangelistToByteArray);
++
++ // Populate the available sensors list
++ loadSensors();
++ }
++
++ /*
++ Load all available sensors and store them in a list.
++ */
++ void AvailableSensorsModel::loadSensors()
++ {
++ beginResetModel();
++ m_availableSensors.clear();
++
++ for (const QByteArray &type : QSensor::sensorTypes()) {
++ for (const QByteArray &identifier : QSensor::sensorsForType(type)) {
++ QSensor* sensor = new QSensor(type, this);
++ sensor->setIdentifier(identifier);
++ // Don't put in sensors we can't connect to
++ if (!sensor->connectToBackend())
++ continue;
++ m_availableSensors.append(sensor);
++ }
++ }
++ endResetModel();
++ }
++
++ int AvailableSensorsModel::rowCount(const QModelIndex&) const
++ {
++ return m_availableSensors.size();
++ }
++
++ QVariant AvailableSensorsModel::data(const QModelIndex &index, int role) const
++ {
++ if (role != Qt::DisplayRole)
++ return QVariant();
++ return QVariant::fromValue<QSensor*>(m_availableSensors.at(index.row()));
++ }
++
++ QSensor* AvailableSensorsModel::get(int index) const
++ {
++ if (index < 0 || index >= m_availableSensors.size())
++ return nullptr;
++ return m_availableSensors[index];
++ }
++
++ // -- SensorPropertyModel
++
++ static QSet<QByteArray> ignoredProperties = {"reading", "identifier", "active",
++ "connectedToBackend", "busy"};
++
++ SensorPropertyModel::SensorPropertyModel(QObject* parent) : QAbstractTableModel(parent)
++ {
++ }
++
++ int SensorPropertyModel::rowCount(const QModelIndex&) const
++ {
++ if (!m_sensor)
++ return 0;
++ return m_values.size();
++ }
++
++ int SensorPropertyModel::columnCount(const QModelIndex&) const
++ {
++ return 2; // 2 = property name + value columns
++ }
++
++ QVariant SensorPropertyModel::data(const QModelIndex &index, int role) const
++ {
++ if (role != Qt::DisplayRole)
++ return QVariant();
++ return (index.column() == 0) ? std::get<0>(m_values.at(index.row()))
++ : std::get<1>(m_values.at(index.row()));
++ }
++
++ void SensorPropertyModel::setSensor(QSensor *sensor)
++ {
++ if (m_sensor == sensor)
++ return;
++ if (m_sensor)
++ m_sensor->disconnect(this);
++ m_sensor = sensor;
++
++ beginResetModel();
++ m_values.clear();
++ if (m_sensor) {
++ // Use metobject to read the available properties. This allows the model to support all
++ // available sensors without knowing their properties in advance / compile-time.
++
++ // 1. Read properties of the 'reading' object if available
++ int firstProperty = QSensorReading::staticMetaObject.propertyOffset();
++ QSensorReading *reading = m_sensor->reading();
++ if (reading) {
++ const QMetaObject *mo = reading->metaObject();
++ for (int i = firstProperty; i < mo->propertyCount(); ++i) {
++ QByteArray name = mo->property(i).name();
++ m_values.append(std::tuple<QByteArray, QByteArray>
++ (name, reading->property(name).toByteArray()));
++ }
++ }
++
++ // 2. Read properties of the 'sensor' object
++ const QMetaObject *mo1 = m_sensor->metaObject();
++ firstProperty = QSensorReading::staticMetaObject.propertyOffset();
++ for (int i = firstProperty; i < mo1->propertyCount(); ++i) {
++ QByteArray name = mo1->property(i).name();
++ if (ignoredProperties.contains(name))
++ continue;
++ m_values.append(std::tuple<QByteArray, QByteArray>
++ (name, m_sensor->property(name).toByteArray()));
++ }
++ QObject::connect(m_sensor, &QSensor::readingChanged,
++ this, &SensorPropertyModel::onReadingChanged);
++ }
++ endResetModel();
++ emit sensorChanged();
++ }
++
++ QSensor* SensorPropertyModel::sensor() const
++ {
++ return m_sensor;
++ }
++
++ void SensorPropertyModel::onReadingChanged()
++ {
++ QSensorReading *reading = m_sensor->reading();
++ const QMetaObject *mo = reading->metaObject();
++ int firstProperty = QSensorReading::staticMetaObject.propertyOffset();
++
++ int valueMapIndex = 0;
++ for (int i = firstProperty; i < mo->propertyCount(); ++i) {
++ QByteArray name = mo->property(i).name();
++ // Update the value and signal the change. Note: here we rely that the "reading"
++ // properties are first on the m_values, and in same order as after the initial
++ // population. This should be true as we access the static metabobject (dynamic
++ // property changes shouldn't impact)
++ m_values[valueMapIndex++] = std::tuple<QByteArray, QByteArray>
++ (name, reading->property(name).toByteArray());
++ }
++ emit dataChanged(createIndex(0,1), createIndex(valueMapIndex,1), {Qt::DisplayRole});
++ }
++
++ QT_END_NAMESPACE