main.qml Example File | Qt Charts 5.12.8

- Qt 5.12
- Qt Charts
- Qml Customizations
- main.qml Example File
- Qt Charts | Commercial or GPLv3

# main.qml Example File

qmlcustomizations/qml/qmlcustomizations/main.qml

     /****************************************************************************
     **
     ** Copyright (C) 2016 The Qt Company Ltd.
     ** Contact: https://www.qt.io/licensing/
     **
     ** This file is part of the Qt Charts module of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:GPL$
     ** 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
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     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3 or (at your option) any later version
     ** approved by the KDE Free Qt Foundation. The licenses are as published by
     ** the Free Software Foundation and appearing in the file LICENSE.GPL3
     ** included in the packaging of this file. Please review the following
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     ****************************************************************************/

     import QtQuick 2.0
     import QtCharts 2.0

     Item {
         width: 400
         height: 300
         property int __activeIndex: 1
         property real __intervalCoefficient: 0

         ChartView {
             id: chartView
             anchors.fill: parent
             title: "Wheel of fortune"
             legend.visible: false
             antialiasing: true

             PieSeries {
                 id: wheelOfFortune
                 horizontalPosition: 0.3
             }

             SplineSeries {
                 id: splineSeries
             }

             ScatterSeries {
                 id: scatterSeries
             }
         }

         Component.onCompleted: {
             __intervalCoefficient = Math.random() + 0.25;

             for (var i = 0; i < 20; i++)
                 wheelOfFortune.append("", 1);

             var interval = 1;
             for (var j = 0; interval < 800; j++) {
                 interval = __intervalCoefficient * j * j;
                 splineSeries.append(j, interval);
             }
             chartView.axisX(scatterSeries).max = j;
             chartView.axisY(scatterSeries).max = 1000;
         }

         Timer {
             id: timer
             property color switchColor
             triggeredOnStart: true
             running: true
             repeat: true
             interval: 100
             onTriggered: {
                 var index = __activeIndex % wheelOfFortune.count;
                 if (interval < 700) {
                     wheelOfFortune.at(index).exploded = false;
                     __activeIndex++;
                     index = __activeIndex % wheelOfFortune.count;
                     wheelOfFortune.at(index).exploded = true;
                     interval = splineSeries.at(__activeIndex).y;
                     scatterSeries.clear();
                     scatterSeries.append(__activeIndex, interval);
                     scatterSeries.color = Qt.tint(scatterSeries.color, "#05FF0000");
                     scatterSeries.markerSize += 0.5;
                 } else {
                     // Switch the colors of the slice and the border
                     wheelOfFortune.at(index).borderWidth = 2;
                     switchColor = wheelOfFortune.at(index).borderColor;
                     wheelOfFortune.at(index).borderColor = wheelOfFortune.at(index).color;
                     wheelOfFortune.at(index).color = switchColor;
                 }
             }
         }
     }