- Qt 5.5
- Qt Sensors
- Qt Sensors - SensorGesture QML Type example
- GestureView.qml Example File
- Qt 5.5.1 Reference Documentation

# GestureView.qml Example File

qmlsensorgestures/GestureView.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."
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    //Import the declarative plugins
    import QtQuick 2.0

    import QtSensors 5.0

    /* Layout
                                             gesturerect
                                            /
    ---------------------------------------/
    | ----------------------------------- |
    | |           id: titleText         | |
    | ----------------------------------- |
    |                                     |
    |                                     |
    | ----------------------------------- |
    | |           id: detectionText     | |
    | ----------------------------------- |
    |                                     |
    |                                     |
    |                                     |
    | ----------------------------------- |
    | |           id: valueText         | |
    | ----------------------------------- |
    |                                     |
    |                                     |
    |                                     |
    | ------------------------------      |
    | | id: gestureStartStopButton |      |
    | ------------------------------      |
    ---------------------------------------
    */

    Rectangle {
        id: gestureRect
        border.width: 1
        anchors.margins: 5
        property alias gestureId: sensorGesture.gestures
        property alias gestureTitle: titleText.text
        property alias enabled: sensorGesture.enabled
        property string oldGesture: ""
        property int count: 0

        SensorGesture {
            id: sensorGesture
            enabled: false
            onDetected: {
                if (gesture !== oldGesture)
                    count = 0;
                valueText.text = gesture + " " + count;
                oldGesture = gesture;
                count++;
            }
            onEnabledChanged: {
                valueText.text = ""
            }
        }

        Text {
            id: titleText
            anchors.top: gestureRect.top
            anchors.left: gestureRect.left
            anchors.right: gestureRect.right
            horizontalAlignment: Text.AlignHCenter
            font.pixelSize: 20
            font.bold: true
            text: ""
        }

        Text {
            id: detectionText
            anchors.top: titleText.bottom
            anchors.left: gestureRect.left
            anchors.right: gestureRect.right
            horizontalAlignment: Text.AlignHCenter
            font.pixelSize: 15
            text: "Detection:"
        }

        Text {
            id: valueText
            anchors.top: detectionText.bottom
            anchors.left: gestureRect.left
            anchors.right: gestureRect.right
            horizontalAlignment: Text.AlignHCenter
            font.pixelSize: 15
            visible: sensorGesture.enabled
        }

        Button{
            id: gestureStartStopButton
            anchors.left: gestureRect.left
            anchors.bottom: gestureRect.bottom
            height: 30
            width: 100
            buttonText: (sensorGesture.enabled ? "Stop" : "Start")
            enabled: true;
            onClicked: {
                if (gestureStartStopButton.buttonText === "Start") {
                    sensorGesture.enabled = true;
                }
                else {
                    sensorGesture.enabled = false;
                }
            }
        }
    }