Qt 5.8 | Qt Sensors | Qt Sensors - SensorGesture QML Type example | GestureView.qml Example File

Qt 5.8.0 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.
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      ** $QT_BEGIN_LICENSE:BSD$
      ** You may use this file under the terms of the BSD license as follows:
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      **     from this software without specific prior written permission.
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      //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;
                  }
              }
          }
      }