diff options
author | Maurice Kalinowski <maurice.kalinowski@qt.io> | 2017-02-15 11:58:01 +0100 |
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committer | Titta Heikkala <titta.heikkala@qt.io> | 2017-02-16 08:05:16 +0000 |
commit | c8ce4940c5be641b753ef943cf336963596705a4 (patch) | |
tree | d81cdce08c8daae30bc50951239530dc3d189608 /tradeshow/iot-sensortag/seriesstorage.cpp | |
parent | 90e26ea85564f22458dbec138e91e8078371f8b2 (diff) |
Move series updates to C++
Instead of jumping to and from the QML engine for each sensor update,
rather stay inside C++ and let QML only do the visual updates.
This only updates the items which use Charts, as updates to a series is
expensive.
Change-Id: Idc7a98d2865e7095264f226c0ac5bbb5a977d18a
Reviewed-by: Titta Heikkala <titta.heikkala@qt.io>
Diffstat (limited to 'tradeshow/iot-sensortag/seriesstorage.cpp')
-rw-r--r-- | tradeshow/iot-sensortag/seriesstorage.cpp | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/tradeshow/iot-sensortag/seriesstorage.cpp b/tradeshow/iot-sensortag/seriesstorage.cpp new file mode 100644 index 0000000..54ac977 --- /dev/null +++ b/tradeshow/iot-sensortag/seriesstorage.cpp @@ -0,0 +1,191 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of Qt for Device Creation. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "seriesstorage.h" + +Q_DECLARE_METATYPE(QAbstractSeries *) +Q_DECLARE_METATYPE(QAbstractAxis *) + +inline void updatePoints(QList<QPointF> &list, int newIndex, float newValue, int maxItems) +{ + list.append(QPointF(newIndex, newValue)); + if (list.size() > maxItems) + list.removeFirst(); +} + +SeriesStorage::SeriesStorage(QObject *parent) : QObject(parent) +{ + for (int i = 0; i < 30; i++) + m_temperatureList.append(QPointF(i, 30)); +} + +void SeriesStorage::setDataProviderPool(DataProviderPool *pool) +{ + m_providerPool = pool; + if (!m_providerPool) + return; + connect(m_providerPool, &DataProviderPool::dataProvidersChanged, this, &SeriesStorage::dataProviderPoolChanged); +} + +void SeriesStorage::setTemperatureSeries(QAbstractSeries *series) +{ + m_temperature = qobject_cast<QLineSeries *>(series); +} + +void SeriesStorage::setGyroSeries(QAbstractSeries *xSeries, QAbstractSeries *ySeries, QAbstractSeries *zSeries) +{ + m_gyroX = qobject_cast<QSplineSeries *>(xSeries); + m_gyroY = qobject_cast<QSplineSeries *>(ySeries); + m_gyroZ = qobject_cast<QSplineSeries *>(zSeries); +} + +void SeriesStorage::setMagnetoMeterSeries(QAbstractSeries *xSeries, QAbstractSeries *ySeries, QAbstractSeries *zSeries) +{ + m_magnetoX = qobject_cast<QSplineSeries *>(xSeries); + m_magnetoY = qobject_cast<QSplineSeries *>(ySeries); + m_magnetoZ = qobject_cast<QSplineSeries *>(zSeries); +} + +void SeriesStorage::dataProviderPoolChanged() +{ + m_gyroProvider = m_providerPool->getProvider(SensorTagDataProvider::Rotation); + if (m_gyroProvider) { + connect(m_gyroProvider, &SensorTagDataProvider::rotationValuesChanged, this, &SeriesStorage::changeRotationSeries); + } + + m_magnetoProvider = m_providerPool->getProvider(SensorTagDataProvider::Magnetometer); + if (m_magnetoProvider) { + connect(m_magnetoProvider, &SensorTagDataProvider::magnetometerMicroTChanged, this, &SeriesStorage::changeMagnetoSeries); + } + + m_temperatureProvider = m_providerPool->getProvider(SensorTagDataProvider::AmbientTemperature); + if (m_temperatureProvider) { + connect(m_temperatureProvider, &SensorTagDataProvider::infraredAmbientTemperatureChanged, this, &SeriesStorage::changeTemperatureSeries); + } +} + +void SeriesStorage::changeRotationSeries() +{ + if (!m_gyroX || !m_gyroY || !m_gyroZ) + return; + + static int gyroSeriesIndex = 0; + static const int maxGyroReadings = 24; + static int axisMin = 0; + static int axisMax = maxGyroReadings + 1; + + updatePoints(m_gyroListX, gyroSeriesIndex, m_gyroProvider->getRotationX(), maxGyroReadings); + m_gyroX->replace(m_gyroListX); + updatePoints(m_gyroListY, gyroSeriesIndex, m_gyroProvider->getRotationY(), maxGyroReadings); + m_gyroY->replace(m_gyroListY); + updatePoints(m_gyroListZ, gyroSeriesIndex, m_gyroProvider->getRotationZ(), maxGyroReadings); + m_gyroZ->replace(m_gyroListZ); + + if (gyroSeriesIndex >= maxGyroReadings) { + QAbstractAxis *axis = m_gyroX->attachedAxes().at(0); + axisMin++; + axisMax++; + axis->setRange(axisMin, axisMax); + } + gyroSeriesIndex++; +} + +void SeriesStorage::changeMagnetoSeries() +{ + if (!m_magnetoX || !m_magnetoY || !m_magnetoZ) + return; + + static int magneticSeriesIndex = 0; + static const int maxMagneticReadings = 24; + static int axisMin = 0; + static int axisMax = maxMagneticReadings; + + updatePoints(m_magnetoListX, magneticSeriesIndex, m_magnetoProvider->getMagnetometerMicroT_xAxis(), maxMagneticReadings); + m_magnetoX->replace(m_magnetoListX); + updatePoints(m_magnetoListY, magneticSeriesIndex, m_magnetoProvider->getMagnetometerMicroT_yAxis(), maxMagneticReadings); + m_magnetoY->replace(m_magnetoListY); + updatePoints(m_magnetoListZ, magneticSeriesIndex, m_magnetoProvider->getMagnetometerMicroT_zAxis(), maxMagneticReadings); + m_magnetoZ->replace(m_magnetoListZ); + + if (magneticSeriesIndex >= maxMagneticReadings) { + QAbstractAxis *axis = m_magnetoX->attachedAxes().at(0); + axisMin++; + axisMax++; + axis->setRange(axisMin, axisMax); + } + magneticSeriesIndex++; +} + +void SeriesStorage::changeTemperatureSeries() +{ + if (!m_temperature) + return; + + static const int maxTemperatureReadings = 30; + static int temperatureSeriesIndex = maxTemperatureReadings; + static int axisMin = 0; + static int axisMax = maxTemperatureReadings - 1; + static const int defaultAvgValue = 25; + + m_temperatureList.removeLast(); + m_temperatureList.append(QPointF(temperatureSeriesIndex -1, m_temperatureProvider->getInfraredAmbientTemperature())); + m_temperatureList.append(QPointF(temperatureSeriesIndex, defaultAvgValue)); + + if (m_temperatureList.size() >= maxTemperatureReadings) + m_temperatureList.removeFirst(); + + if (temperatureSeriesIndex >= maxTemperatureReadings) { + QAbstractAxis *axis = m_temperature->attachedAxes().at(0); + axisMin++; + axisMax++; + axis->setRange(axisMin, axisMax); + } + m_temperature->replace(m_temperatureList); + temperatureSeriesIndex++; +} |