blob: 05b45b96c0451690bbf67413fae0195d1dc957ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include "charts.h"
#include <QtCharts/QChart>
#include <QtCharts/QPieSeries>
class PieChart: public Chart
{
public:
QString name() { return QObject::tr("PieChart"); }
QString category() { return QObject::tr("PieSeries"); }
QString subCategory() { return QString::null; }
QChart *createChart(const DataTable &table)
{
QChart *chart = new QChart();
chart->setTitle("Pie chart");
qreal pieSize = 1.0 / table.count();
for (int i = 0; i < table.count(); i++) {
QPieSeries *series = new QPieSeries(chart);
foreach (Data data, table[i]) {
QPieSlice *slice = series->append(data.second, data.first.y());
if (data == table[i].first()) {
slice->setLabelVisible();
slice->setExploded();
}
}
qreal hPos = (pieSize / 2) + (i / (qreal) table.count());
series->setPieSize(pieSize);
series->setHorizontalPosition(hPos);
series->setVerticalPosition(0.5);
chart->addSeries(series);
}
return chart;
}
};
DECLARE_CHART(PieChart)
|
