- Qt 5.5
- Qt Sensors
- Qt Sensors - QML example
- qmlqtsensors.qml Example File
- Qt 5.5.1 Reference Documentation

# qmlqtsensors.qml Example File

qmlqtsensors/qmlqtsensors.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the QtSensors module of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** 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 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."
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    /* Layout
                                                                                      mainWnd
                                                                                     /
    ---------------------------------------------------------------------------------
    |--------------------------------------------------------------------------------
    ||                                  labelTitle                                  |
    |--------------------------------------------------------------------------------
    |-------------------------------------------------------------------------------- <---- tiltLine
    |--------------------------------------------------------------------------------
    ||                                  labelTilt                                   |
    |--------------------------------------------------------------------------------
    |         / accuracyRect                               / speedRect
    |-------------------------------------------||----------------------------------|
    || Accuracy <----- textAccuracy             || Speed <-----textSpeed            |
    ||  value   <- textAccuracyValue            ||  value    <- textSpeedValue      |
    || ----------------- ------------------     || --------------- ---------------- |
    || | accuracyLower | | accuracyHigher |     || | speedLower  | | speedHigher  | |
    || ----------------- ------------------     || --------------- ---------------- |
    |------------------------------------------ ||----------------------------------|
    | -----------
    | |Calibrate|    <------------------ calibrate
    | -----------
    | ---------
    | |Degree |    <-------------------- useRadian                   X Rotation: 0  <------------------ xrottext
    | ---------
    | ---------
    | |Start  |    <-------------------- tiltStart                   Y Rotation: 0  <------------------ yrottext
    | ---------
    |-------------------------------------------------------------------------------- <---- ambientlightLine
    |--------------------------------------------------------------------------------
    ||                                  labelAmbientLight                           |
    |--------------------------------------------------------------------------------
    | ---------
    | |Start  |    <-------------------- ablStart                    Ambient light: -  <--------------- abltext
    | ---------
    |-------------------------------------------------------------------------------- <---- proximityLine
    |--------------------------------------------------------------------------------
    ||                                  labelProximityLight                           |
    |--------------------------------------------------------------------------------
    | ---------
    | |Start  |    <-------------------- proxiStart                  Proximity: -  <--------------- proxitext
    | ---------
    ------------------------------------------------------------------------------
    */

    //Import the declarative plugins
    import QtQuick 2.0
    import "components"

    import QtSensors 5.0

    ApplicationWindow {

        // Sensor types used
        TiltSensor {
            id: tilt
            active: false
        }

        AmbientLightSensor {
            id: ambientlight
            active: false
            onReadingChanged: {
                if (reading.lightLevel == AmbientLightSensor.Unknown)
                    ambientlighttext.text = "Ambient light: Unknown";
                else if (reading.lightLevel == AmbientLightSensor.Dark)
                    ambientlighttext.text = "Ambient light: Dark";
                else if (reading.lightLevel == AmbientLightSensor.Twilight)
                    ambientlighttext.text = "Ambient light: Twilight";
                else if (reading.lightLevel == AmbientLightSensor.Light)
                    ambientlighttext.text = "Ambient light: Light";
                else if (reading.lightLevel == AmbientLightSensor.Bright)
                    ambientlighttext.text = "Ambient light: Bright";
                else if (reading.lightLevel == AmbientLightSensor.Sunny)
                    ambientlighttext.text = "Ambient light: Sunny";
            }
        }

        ProximitySensor {
            id: proxi
            active: false
        }

        Column {
            spacing: 10
            anchors.fill: parent
            anchors.margins: 5

            Text {
                id: labelTitle
                width: parent.width
                horizontalAlignment: Text.AlignHCenter
                font.pixelSize: 30
                font.bold: true
                text: "QML QtSensors"
            }

            // Tilt region
            Divider { label: "TiltSensor" }

            Row {
                spacing: 20
                width: parent.width
                anchors.margins: 5
                Button {
                    id: calibrate
                    height: 30
                    width: 80
                    text: "Calibrate"
                    onClicked: tilt.calibrate();
                }
                Text {
                    id: xrottext
                    height: 30
                    verticalAlignment: Text.AlignVCenter
                    text: "X Rotation: " + tilt.xRotation + "°"
                }
            }
            Row {
                spacing: 20
                width: parent.width
                anchors.margins: 5
                Button {
                    id: tiltStart
                    height: 30
                    width: 80
                    text: tilt.active ? "Stop" : "Start"
                    onClicked: {
                        tilt.active = (tiltStart.text === "Start");
                    }
                }
                Text {
                    id: yrottext
                    height: 30
                    verticalAlignment: Text.AlignVCenter
                    text: "Y Rotation: " + tilt.yRotation +  "°"
                }
            }

            Divider { label: "AmbientLightSensor" }

            Row {
                spacing: 20
                width: parent.width
                anchors.margins: 5

                Button{
                    id: ambientlightStart
                    height: 30
                    width: 80
                    text: ambientlight.active ? "Stop" : "Start"
                    onClicked: {
                        ambientlight.active = (ambientlightStart.text === "Start" ? true : false);
                    }
                }

                Text {
                    id: ambientlighttext
                    height: 30
                    verticalAlignment: Text.AlignVCenter
                    text: "Ambient light: Unknown"
                }
            }

            // Proximity region
            Divider { label: "ProximitySensor" }

            Row {
                spacing: 20
                width: parent.width
                anchors.margins: 5

                Button {
                    id: proxiStart
                    height: 30
                    width: 80
                    text: proxi.active ? "Stop" : "Start"

                    onClicked: {
                        proxi.active = (proxiStart.text === "Start"  ? true: false);
                    }
                }

                Text {
                    id: proxitext
                    height: 30
                    verticalAlignment: Text.AlignVCenter
                    text: "Proximity: " +
                          (proxi.active ? (proxi.reading.near ? "Near" : "Far") : "Unknown")
                }
            }
        }
    }