Qt 5.11 | Qt Bluetooth | Bluetooth Low Energy Heart Rate Game | Connect.qml Example File

Qt 5.11.3 Reference Documentation

# Connect.qml Example File

heartrate-game/qml/Connect.qml

      /***************************************************************************
      **
      ** Copyright (C) 2017 The Qt Company Ltd.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the examples of the QtBluetooth module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** Commercial License Usage
      ** Licensees holding valid commercial Qt licenses may use this file in
      ** accordance with the commercial license agreement provided with the
      ** Software or, alternatively, in accordance with the terms contained in
      ** a written agreement between you and The Qt Company. For licensing terms
      ** and conditions see https://www.qt.io/terms-conditions. For further
      ** information use the contact form at https://www.qt.io/contact-us.
      **
      ** BSD License Usage
      ** Alternatively, 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 QtQuick 2.5
      import Shared 1.0

      GamePage {

          errorMessage: deviceFinder.error
          infoMessage: deviceFinder.info

          Rectangle {
              id: viewContainer
              anchors.top: parent.top
              anchors.bottom:
                  // only BlueZ platform has address type selection
                  connectionHandler.requiresAddressType ? addressTypeButton.top : searchButton.top
              anchors.topMargin: GameSettings.fieldMargin + messageHeight
              anchors.bottomMargin: GameSettings.fieldMargin
              anchors.horizontalCenter: parent.horizontalCenter
              width: parent.width - GameSettings.fieldMargin*2
              color: GameSettings.viewColor
              radius: GameSettings.buttonRadius

              Text {
                  id: title
                  width: parent.width
                  height: GameSettings.fieldHeight
                  horizontalAlignment: Text.AlignHCenter
                  verticalAlignment: Text.AlignVCenter
                  color: GameSettings.textColor
                  font.pixelSize: GameSettings.mediumFontSize
                  text: qsTr("FOUND DEVICES")

                  BottomLine {
                      height: 1;
                      width: parent.width
                      color: "#898989"
                  }
              }

              ListView {
                  id: devices
                  anchors.left: parent.left
                  anchors.right: parent.right
                  anchors.bottom: parent.bottom
                  anchors.top: title.bottom
                  model: deviceFinder.devices
                  clip: true

                  delegate: Rectangle {
                      id: box
                      height:GameSettings.fieldHeight * 1.2
                      width: parent.width
                      color: index % 2 === 0 ? GameSettings.delegate1Color : GameSettings.delegate2Color

                      MouseArea {
                      anchors.fill: parent
                          onClicked: {
                              deviceFinder.connectToService(modelData.deviceAddress);
                              app.showPage("Measure.qml")
                          }
                      }

                      Text {
                          id: device
                          font.pixelSize: GameSettings.smallFontSize
                          text: modelData.deviceName
                          anchors.top: parent.top
                          anchors.topMargin: parent.height * 0.1
                          anchors.leftMargin: parent.height * 0.1
                          anchors.left: parent.left
                          color: GameSettings.textColor
                      }

                      Text {
                          id: deviceAddress
                          font.pixelSize: GameSettings.smallFontSize
                          text: modelData.deviceAddress
                          anchors.bottom: parent.bottom
                          anchors.bottomMargin: parent.height * 0.1
                          anchors.rightMargin: parent.height * 0.1
                          anchors.right: parent.right
                          color: Qt.darker(GameSettings.textColor)
                      }
                  }
              }
          }

          GameButton {
              id: addressTypeButton
              anchors.horizontalCenter: parent.horizontalCenter
              anchors.bottom: searchButton.top
              anchors.bottomMargin: GameSettings.fieldMargin*0.5
              width: viewContainer.width
              height: GameSettings.fieldHeight
              visible: connectionHandler.requiresAddressType // only required on BlueZ
              state: "public"
              onClicked: state == "public" ? state = "random" : state = "public"

              states: [
                  State {
                      name: "public"
                      PropertyChanges { target: addressTypeText; text: qsTr("Public Address") }
                      PropertyChanges { target: deviceHandler; addressType: AddressType.PublicAddress }
                  },
                  State {
                      name: "random"
                      PropertyChanges { target: addressTypeText; text: qsTr("Random Address") }
                      PropertyChanges { target: deviceHandler; addressType: AddressType.RandomAddress }
                  }
              ]

              Text {
                  id: addressTypeText
                  anchors.centerIn: parent
                  font.pixelSize: GameSettings.tinyFontSize
                  color: GameSettings.textColor
              }
          }

          GameButton {
              id: searchButton
              anchors.horizontalCenter: parent.horizontalCenter
              anchors.bottom: parent.bottom
              anchors.bottomMargin: GameSettings.fieldMargin
              width: viewContainer.width
              height: GameSettings.fieldHeight
              enabled: !deviceFinder.scanning
              onClicked: deviceFinder.startSearch()

              Text {
                  anchors.centerIn: parent
                  font.pixelSize: GameSettings.tinyFontSize
                  text: qsTr("START SEARCH")
                  color: searchButton.enabled ? GameSettings.textColor : GameSettings.disabledTextColor
              }
          }
      }