diff options
author | Lincoln Ramsay <lincoln.ramsay@nokia.com> | 2011-10-04 15:14:01 +1000 |
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committer | Lincoln Ramsay <lincoln.ramsay@nokia.com> | 2011-10-10 09:25:31 +1000 |
commit | 4e04cda0e600f4e3bb148956ba631647a5c1fa4c (patch) | |
tree | 5dd8a0f2e2a0b2cdc8075f05a66cb1f6689e51c4 /examples/sensors/grue/plugin | |
parent | 93be0e5c0fd1694b0868187ed3daa006dfa4bd79 (diff) |
Grue Sensor example
Updated, documented as an example.
Now with a QML import and a QML app.
Fixes: MTMW-85
Change-Id: I06772cf4a07ea0d2ec7bfccda6e8f51b5d866c20
Reviewed-on: http://codereview.qt-project.org/6016
Reviewed-by: Lincoln Ramsay <lincoln.ramsay@nokia.com>
Diffstat (limited to 'examples/sensors/grue/plugin')
-rw-r--r-- | examples/sensors/grue/plugin/gruesensorimpl.cpp | 135 | ||||
-rw-r--r-- | examples/sensors/grue/plugin/gruesensorimpl.h | 74 | ||||
-rw-r--r-- | examples/sensors/grue/plugin/main.cpp | 82 | ||||
-rw-r--r-- | examples/sensors/grue/plugin/plugin.pro | 20 |
4 files changed, 311 insertions, 0 deletions
diff --git a/examples/sensors/grue/plugin/gruesensorimpl.cpp b/examples/sensors/grue/plugin/gruesensorimpl.cpp new file mode 100644 index 00000000..4a277c91 --- /dev/null +++ b/examples/sensors/grue/plugin/gruesensorimpl.cpp @@ -0,0 +1,135 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation and its Subsidiary(-ies) 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 "gruesensorimpl.h" +#include <QDebug> +#include <QTimer> + +char const * const gruesensorimpl::id("grue.gruesensor"); + +gruesensorimpl::gruesensorimpl(QSensor *sensor) + : QSensorBackend(sensor) +{ + // We need a light sensor + lightSensor = new QAmbientLightSensor(this); + connect(lightSensor, SIGNAL(readingChanged()), this, SLOT(lightChanged())); + lightSensor->connectToBackend(); + + // We need a timer + darkTimer = new QTimer(this); + darkTimer->setInterval(1000); + connect(darkTimer, SIGNAL(timeout()), this, SLOT(increaseChance())); + + // We use this as our timestamp source + timer.start(); + +//! [setReading] + // Register our reading instance + setReading<GrueSensorReading>(&m_reading); +//! [setReading] + +//! [metadata] + // Supply metadata + // We can run as fast as the light sensor does + setDataRates(lightSensor); + // Only one output range, 0 to 1 in .1 increments + addOutputRange(0, 1, 0.1); + setDescription(QLatin1String("Grue Sensor")); +//! [metadata] +} + +void gruesensorimpl::start() +{ +//! [start] + lightSensor->setDataRate(sensor()->dataRate()); + lightSensor->start(); + // If the light sensor doesn't work we don't work either + if (!lightSensor->isActive()) + sensorStopped(); + if (lightSensor->isBusy()) + sensorBusy(); +//! [start] +} + +void gruesensorimpl::stop() +{ + lightSensor->stop(); +} + +void gruesensorimpl::lightChanged() +{ + qreal chance = 0.0; + darkTimer->stop(); + + switch (lightSensor->reading()->lightLevel()) { + case QAmbientLightReading::Dark: + // It is dark. You are likely to be eaten by a grue. + chance = 0.1; + darkTimer->start(); + break; + default: + break; + } + + // Only send an update if the value has changed. + if (chance != m_reading.chanceOfBeingEaten() || m_reading.timestamp() == 0) { + m_reading.setTimestamp(timer.elapsed()); + m_reading.setChanceOfBeingEaten(chance); + + newReadingAvailable(); + } +} + +void gruesensorimpl::increaseChance() +{ + // The longer you stay in the dark, the higher your chance of being eaten + qreal chance = m_reading.chanceOfBeingEaten() + 0.1; + + m_reading.setTimestamp(timer.elapsed()); + m_reading.setChanceOfBeingEaten(chance); + + newReadingAvailable(); + + // No point in using the timer anymore if we've hit 1... you can't get more + // likely to be eaten than 100% + if (chance == 1.0) + darkTimer->stop(); +} + diff --git a/examples/sensors/grue/plugin/gruesensorimpl.h b/examples/sensors/grue/plugin/gruesensorimpl.h new file mode 100644 index 00000000..bddca842 --- /dev/null +++ b/examples/sensors/grue/plugin/gruesensorimpl.h @@ -0,0 +1,74 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation and its Subsidiary(-ies) 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GRUESENSORIMPL_H +#define GRUESENSORIMPL_H + +#include <qsensorbackend.h> +#include "gruesensor.h" +#include <qambientlightsensor.h> +#include <QTime> + +class QTimer; + +class gruesensorimpl : public QSensorBackend +{ + Q_OBJECT +public: + static char const * const id; + + gruesensorimpl(QSensor *sensor); + + void start(); + void stop(); + +private Q_SLOTS: + void lightChanged(); + void increaseChance(); + +private: + GrueSensorReading m_reading; + QAmbientLightSensor *lightSensor; + QTimer *darkTimer; + QTime timer; +}; + +#endif + diff --git a/examples/sensors/grue/plugin/main.cpp b/examples/sensors/grue/plugin/main.cpp new file mode 100644 index 00000000..d471ece3 --- /dev/null +++ b/examples/sensors/grue/plugin/main.cpp @@ -0,0 +1,82 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation and its Subsidiary(-ies) 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 "gruesensorimpl.h" +#include <qsensorplugin.h> +#include <qsensorbackend.h> +#include <qsensormanager.h> +#include <QFile> +#include <QDebug> + +class GrueSensorPlugin : public QObject, public QSensorPluginInterface, public QSensorChangesInterface, public QSensorBackendFactory +{ + Q_OBJECT + Q_INTERFACES(QSensorPluginInterface QSensorChangesInterface) +public: + void registerSensors() + { + qDebug() << "loaded the grue plugin"; + } + + void sensorsChanged() + { + if (!QSensor::defaultSensorForType(QAmbientLightSensor::type).isEmpty()) { + // There is a light sensor available. Register the backend + if (!QSensorManager::isBackendRegistered(GrueSensor::type, gruesensorimpl::id)) + QSensorManager::registerBackend(GrueSensor::type, gruesensorimpl::id, this); + } else { + if (QSensorManager::isBackendRegistered(GrueSensor::type, gruesensorimpl::id)) + QSensorManager::unregisterBackend(GrueSensor::type, gruesensorimpl::id); + } + } + + QSensorBackend *createBackend(QSensor *sensor) + { + if (sensor->identifier() == gruesensorimpl::id) + return new gruesensorimpl(sensor); + + return 0; + } +}; + +Q_EXPORT_PLUGIN2(libsensors_grueplugin, GrueSensorPlugin); + +#include "main.moc" + diff --git a/examples/sensors/grue/plugin/plugin.pro b/examples/sensors/grue/plugin/plugin.pro new file mode 100644 index 00000000..fed8460b --- /dev/null +++ b/examples/sensors/grue/plugin/plugin.pro @@ -0,0 +1,20 @@ +TEMPLATE = lib +CONFIG += plugin +TARGET = $$qtLibraryTarget(qtsensors_grue) +PLUGIN_TYPE = sensors + +QT = core sensors + +INCLUDEPATH += $$PWD/../lib +LIBS += -L$$QT.sensors.libs -lgruesensor + +HEADERS += gruesensorimpl.h\ + +SOURCES += gruesensorimpl.cpp\ + main.cpp\ + +symbian { + TARGET.EPOCALLOWDLLDATA = 1 + TARGET.CAPABILITY = ALL -TCB +} + |