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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#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.count() > 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.count() > 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()
{
//! [0]
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();
//! [0]
}
int AvailableSensorsModel::rowCount(const QModelIndex&) const
{
return m_availableSensors.count();
}
//! [1]
QVariant AvailableSensorsModel::data(const QModelIndex &index, int role) const
{
if (role != Qt::DisplayRole)
return QVariant();
return QVariant::fromValue<QSensor*>(m_availableSensors.at(index.row()));
}
//! [1]
QSensor* AvailableSensorsModel::get(int index) const
{
if (index < 0 || index >= m_availableSensors.count())
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.count();
}
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
//! [2]
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]
// 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
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