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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**
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29
30#include "charts.h"
31#include <QtCharts/QChart>
32#include <QtCharts/QLineSeries>
33#include <QtCharts/QValueAxis>
34#include <QtCharts/QDateTimeAxis>
35
36class DateTimeAxisX: public Chart
37{
38public:
39 QString name() { return "AxisX"; }
40 QString category() { return QObject::tr(s: "Axis"); }
41 QString subCategory() { return "DateTimeAxis"; }
42
43 QChart *createChart(const DataTable &table)
44 {
45 QChart *chart = new QChart();
46 chart->setTitle("DateTime X , Value Y");
47 QValueAxis *valueaxis = new QValueAxis();
48 QDateTimeAxis *datetimeaxis = new QDateTimeAxis();
49 datetimeaxis->setTickCount(10);
50 datetimeaxis->setFormat("yyyy");
51
52 qreal day = 1000l * 60l * 60l * 24l;
53
54 QString name("Series ");
55 int nameIndex = 0;
56 foreach (DataList list, table) {
57 QLineSeries *series = new QLineSeries(chart);
58 foreach (Data data, list) {
59 QPointF point = data.first;
60 series->append(x: day * 365l * 30l + point.x() * day * 365l, y: point.y());
61 }
62 series->setName(name + QString::number(nameIndex));
63 nameIndex++;
64 chart->addSeries(series);
65 chart->setAxisX(axis: datetimeaxis, series);
66 chart->setAxisY(axis: valueaxis, series);
67 }
68
69 return chart;
70 }
71};
72
73class DateTimeAxisXTitle: public DateTimeAxisX
74{
75public:
76 QString name() { return "AxisX Title"; }
77
78 QChart *createChart(const DataTable &table)
79 {
80 QChart *chart = DateTimeAxisX::createChart(table);
81 chart->axisX()->setTitleText("Axis X");
82 chart->axisY()->setTitleText("Axis Y");
83 chart->setTitle("DateTime X , Value Y, Title");
84 return chart;
85 }
86};
87
88
89DECLARE_CHART(DateTimeAxisX);
90DECLARE_CHART(DateTimeAxisXTitle);
91

source code of qtcharts/tests/manual/chartviewer/charts/axis/datetimeaxisx.cpp