- Qt 5.3
- Qt Bluetooth
- Bluetooth QML Ping Pong example
- Board.qml Example File
- Qt 5.3.2 Reference Documentation

# Board.qml Example File

pingpong/assets/Board.qml

    /***************************************************************************
    **
    ** Copyright (C) 2014 BlackBerry Limited. All rights reserved.
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the examples of the QtBluetooth 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 Digia Plc and its Subsidiary(-ies) 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 2.0
    import QtQuick.Window 2.1

    Rectangle {
        id: board
        width: 600
        height: 300

        // 1 - server role; left pedal
        // 2 - client role; right pedal
        property int roleSide: pingPong.role
        onRoleSideChanged: {
            if (pingPong.role == 1) {
                rightMouse.opacity = 0.7
                rightMouse.enabled = false
            }
            else if (pingPong.role == 2) {
                leftMouse.opacity = 0.7
                leftMouse.enabled = false
            }
        }

        property bool deviceMessage: pingPong.showDialog
        onDeviceMessageChanged: {
            if (pingPong.showDialog) {
                info.visible = true;
                board.opacity = 0.5;
            } else {
                info.visible = false;
                board.opacity = 1;
            }
        }

        property double leftBlockUpdate: pingPong.leftBlockY
        onLeftBlockUpdateChanged: leftblock.y = pingPong.leftBlockY

        property double rightBlockUpdate: pingPong.rightBlockY
        onRightBlockUpdateChanged: rightblock.y = pingPong.rightBlockY

        property double leftBlockY: leftblock.y
        onLeftBlockYChanged: pingPong.updateLeftBlock(leftblock.y)

        property double rightBlockY: rightblock.y
        onRightBlockYChanged: pingPong.updateRightBlock(rightblock.y)

        // Left pedal - server role
        Rectangle {
            id: leftblock
            y: (parent.height/2)
            width: (parent.width/27)
            height: (parent.height/5)
            anchors.left: parent.left
            color: "#363636"
            radius: 10

            MouseArea {
                id: leftMouse
                anchors.fill: parent
                acceptedButtons: Qt.LeftButton
                drag.target: leftblock
                drag.axis: Drag.YAxis
                drag.minimumY: 0
                drag.maximumY: (board.height - leftblock.height)
            }
        }

        // Right pedal - client role
        Rectangle {
            id: rightblock
            y: (parent.height/2)
            width: (parent.width/27)
            height: (parent.height/5)
            anchors.right: parent.right
            color: "#363636"
            radius: 10

            MouseArea {
                id: rightMouse
                anchors.fill: parent
                acceptedButtons: Qt.LeftButton
                drag.target: rightblock
                drag.axis: Drag.YAxis
                drag.minimumY: 0
                drag.maximumY: (board.height - rightblock.height)
            }
        }

        Rectangle {
            id: splitter
            color: "#363636"
            anchors.horizontalCenter: parent.horizontalCenter
            height: parent.height
            width: parent.width/100
        }

        Text {
            id: leftResult
            text: pingPong.leftResult
            font.bold: true
            font.pixelSize: 30
            anchors.right: splitter.left
            anchors.top: parent.top
            anchors.margins: 15
        }

        Text {
            id: rightResult
            text: pingPong.rightResult
            font.bold: true
            font.pixelSize: 30
            anchors.left: splitter.right
            anchors.top: parent.top
            anchors.margins: 15
        }

        Rectangle {
            id: ball
            width: leftblock.width/2
            height: leftblock.width/2
            radius: width
            color: "#363636"
            x: pingPong.ballX
            y: pingPong.ballY

            SequentialAnimation {
                running: true
                NumberAnimation { target: ball; property: "x"; duration: 50 }
                NumberAnimation { target: ball; property: "y"; duration: 50 }
            }
        }

        Component.onCompleted: {
            if (menulist.height == Screen.height && menulist.width == Screen.width)
                pingPong.setSize(Screen.width, Screen.height)
            else
                pingPong.setSize(board.width, board.height)
            pingPong.updateLeftBlock(leftblock.y)
            pingPong.updateRightBlock(rightblock.y)
        }
    }