1 | /**************************************************************************** |
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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Charts module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
20 | ** approved by the KDE Free Qt Foundation. The licenses are as published by |
21 | ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
22 | ** included in the packaging of this file. Please review the following |
23 | ** information to ensure the GNU General Public License requirements will |
24 | ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
25 | ** |
26 | ** $QT_END_LICENSE$ |
27 | ** |
28 | ****************************************************************************/ |
29 | |
30 | #include "charts.h" |
31 | #include <QtCharts/QChart> |
32 | #include <QtCharts/QAreaSeries> |
33 | #include <QtCharts/QLineSeries> |
34 | |
35 | class AreaChart: public Chart |
36 | { |
37 | public: |
38 | QString name() { return QObject::tr(s: "AreaChart"); } |
39 | QString category() { return QObject::tr(s: "XYSeries"); } |
40 | QString subCategory() { return QString(); } |
41 | |
42 | QChart *createChart(const DataTable &table) |
43 | { |
44 | QChart *chart = new QChart(); |
45 | chart->setTitle("Area chart"); |
46 | |
47 | // The lower series initialized to zero values |
48 | QLineSeries *lowerSeries = 0; |
49 | QString name("Series "); |
50 | int nameIndex = 0; |
51 | for (int i(0); i < table.count(); i++) { |
52 | QLineSeries *upperSeries = new QLineSeries(chart); |
53 | for (int j(0); j < table[i].count(); j++) { |
54 | Data data = table[i].at(i: j); |
55 | if (lowerSeries) { |
56 | const QList<QPointF>& points = lowerSeries->points(); |
57 | upperSeries->append(point: QPointF(j, points[i].y() + data.first.y())); |
58 | } else { |
59 | upperSeries->append(point: QPointF(j, data.first.y())); |
60 | } |
61 | } |
62 | QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries); |
63 | area->setName(name + QString::number(nameIndex)); |
64 | nameIndex++; |
65 | chart->addSeries(series: area); |
66 | chart->createDefaultAxes(); |
67 | lowerSeries = upperSeries; |
68 | } |
69 | return chart; |
70 | } |
71 | }; |
72 | |
73 | DECLARE_CHART(AreaChart) |
74 | |
75 |