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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\example sensorsshowcase
\title Qt Sensors - Sensors Showcase
\brief The Sensors Showcase example demonstrates sensor usage with visual examples.
\ingroup qtsensors-examples
\image sensorsshowcase-mainview.png
\section1 Overview
On startup, the application shows a menu with buttons for the subviews for each sensor.
The sensor views instantiate the given sensor, display the sensor's values as numbers,
and also visualize them with a simple graphical representation.
\section1 Main Menu
The main view shows the title with the name of the application and a button for each
subview laid out evenly by a \c ColumnLayout. The navigation between the subviews
and the main menu is managed by a \c StackView.
\section1 Accelerometer View
The accelerometer view shows the current device acceleration values and moves around
an image with an amount that is opposite of the device acceleration giving the image
an inertia effect that is proportional with the movement of the device.
Moving around the image happens in the accelerometer \c onReadingChanged method.
\snippet sensorsshowcase/accelerometer.qml 0
Whenever there is a new accelerometer value the image translation coordinates are
updated accordingly.
\section1 Proximity View
The proximity view shows an image that is enlarged whenever the proximity sensor of
the device is covered.
\section1 Compass View
The compass view shows a compass image that is rotated according to the Compass sensor
reading value making the compass turn towards north.
\section1 Magnetometer View
The magnetometer view displays a magnet image that is rotated around an amount that is
decided by the rotation angle of the vector given by the x and y magnetometer values.
This results in general in the same rotation as the compass gives, demonstrating one use
case of how the magnetometer readings can be used. Since the magnetometer provides
readings along all three axes, there is more freedom with how these readings can be used.
\snippet sensorsshowcase/magnetometer.qml 0
\section1 Gyroscope View
\image sensorsshowcase-gyroscope.png
The gyroscope view also shows an image that is rotated around three axes with an amount
that is calculated from the gyroscope readings. Since the gyroscope provides relative
rotational change around the three spatial axes and the time between reading updates
can vary, the time of the readings are stored and the rotational change is normalized
based on the time passed between reading updates.
\snippet sensorsshowcase/gyroscope.qml 0
By pressing the reset button the image rotation is reset to 0.
*/
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