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Chartthemes example to use increasing x values
Tero Ahola -
r515:3aac91920670
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1 1 #include <QtGui/QApplication>
2 2 #include <QMainWindow>
3 3 #include <qchartglobal.h>
4 4 #include <qchartview.h>
5 5 #include <qpieseries.h>
6 6 #include <qpieslice.h>
7 7 #include <QGridLayout>
8 8 #include <QFormLayout>
9 9 #include <QComboBox>
10 10 #include <QSpinBox>
11 11 #include <QCheckBox>
12 12 #include <QGroupBox>
13 13 #include <QLabel>
14 14 #include <QTime>
15 15 #include <qlineseries.h>
16 16 #include <qsplineseries.h>
17 17 #include <qscatterseries.h>
18 18 #include <qareaseries.h>
19 19
20 20 QTCOMMERCIALCHART_USE_NAMESPACE
21 21
22 22 typedef QPair<QPointF, QString> Data;
23 23 typedef QList<Data> DataList;
24 24 typedef QList<DataList> DataTable;
25 25
26 26
27 27 class MainWidget : public QWidget
28 28 {
29 29 Q_OBJECT
30 30
31 31 public:
32 32 explicit MainWidget(QWidget* parent = 0)
33 33 :QWidget(parent)
34 34 {
35 35 // set seed for random stuff
36 36 qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
37 37
38 38 // generate random data
39 39 int listCount = 3;
40 40 int valueMax = 100;
41 41 int valueCount = 50;
42 for (int i=0; i<listCount; i++) {
42 for (int i(0); i < listCount; i++) {
43 43 DataList dataList;
44 for (int j=0; j<valueCount; j++) {
45 QPointF value(qrand() % valueMax, qrand() % valueMax);
44 for (int j(0); j < valueCount; j++) {
45 QPointF value(j + (qreal) rand() / (qreal) RAND_MAX, qrand() % valueMax);
46 46 QString label = QString::number(i) + ":" + QString::number(j);
47 47 dataList << Data(value, label);
48 48 }
49 49 m_dataTable << dataList;
50 50 }
51 51
52 52 // create layout
53 53 QGridLayout* baseLayout = new QGridLayout();
54 54
55 55 // theme combo
56 56 m_themeComboBox = new QComboBox();
57 57 m_themeComboBox->addItem("Default", QChart::ChartThemeDefault);
58 58 m_themeComboBox->addItem("Vanilla", QChart::ChartThemeVanilla);
59 59 m_themeComboBox->addItem("Icy", QChart::ChartThemeIcy);
60 60 m_themeComboBox->addItem("Grayscale", QChart::ChartThemeGrayscale);
61 61 m_themeComboBox->addItem("Scientific", QChart::ChartThemeScientific);
62 62 connect(m_themeComboBox, SIGNAL(currentIndexChanged(int)), this ,SLOT(updateTheme()));
63 63 baseLayout->addWidget(new QLabel("Theme:"), 0, 0);
64 64 baseLayout->addWidget(m_themeComboBox, 0, 1);
65 65
66 66 // area chart
67 67 QChartView *chart = new QChartView();
68 68 chart->setChartTitle("Area chart");
69 69 chart->setRenderHint(QPainter::Antialiasing);
70 70 baseLayout->addWidget(chart, 1, 0);
71 71 {
72 72 QLineSeries *series1 = new QLineSeries(chart);
73 73 foreach (Data data, m_dataTable.first())
74 74 series1->add(data.first);
75 75 QLineSeries *series2 = new QLineSeries(chart);
76 76 foreach (Data data, m_dataTable.last())
77 77 series2->add(data.first);
78 78 QAreaSeries *series = new QAreaSeries(series1, series2);
79 79 chart->addSeries(series);
80 80 }
81 81 m_charts << chart;
82 82
83 83 // bar chart
84 84 chart = new QChartView();
85 85 chart->setChartTitle("bar chart");
86 86 chart->setRenderHint(QPainter::Antialiasing);
87 87 baseLayout->addWidget(chart, 1, 1);
88 88 m_charts << chart;
89 89
90 90 // line chart
91 91 chart = new QChartView();
92 92 chart->setChartTitle("line chart");
93 93 chart->setRenderHint(QPainter::Antialiasing);
94 94 baseLayout->addWidget(chart, 1, 2);
95 95 foreach (DataList list, m_dataTable) {
96 96 QLineSeries *series = new QLineSeries(chart);
97 97 foreach (Data data, list)
98 98 series->add(data.first);
99 99 chart->addSeries(series);
100 100 }
101 101 m_charts << chart;
102 102
103 103 // pie chart
104 104 chart = new QChartView();
105 105 chart->setChartTitle("pie chart");
106 106 chart->setRenderHint(QPainter::Antialiasing);
107 107 baseLayout->addWidget(chart, 2, 0);
108 108
109 109 qreal pieSize = 1.0 / m_dataTable.count();
110 110 for (int i=0; i<m_dataTable.count(); i++) {
111 111 QPieSeries *series = new QPieSeries(chart);
112 112 foreach (Data data, m_dataTable[i])
113 series->add(data.first.x(), data.second);
113 series->add(data.first.y(), data.second);
114 114 qreal hPos = (pieSize / 2) + (i / (qreal) m_dataTable.count());
115 115 series->setPieSize(pieSize);
116 116 series->setPiePosition(hPos, 0.5);
117 117 chart->addSeries(series);
118 118 }
119 119 m_charts << chart;
120 120
121 121 // spine chart
122 122 chart = new QChartView();
123 123 chart->setChartTitle("spline chart");
124 124 chart->setRenderHint(QPainter::Antialiasing);
125 125 baseLayout->addWidget(chart, 2, 1);
126 126 foreach (DataList list, m_dataTable) {
127 127 QSplineSeries *series = new QSplineSeries(chart);
128 128 foreach (Data data, list)
129 129 series->add(data.first);
130 130 chart->addSeries(series);
131 131 }
132 132 m_charts << chart;
133 133
134 134 // scatter chart
135 135 chart = new QChartView();
136 136 chart->setChartTitle("scatter chart");
137 137 chart->setRenderHint(QPainter::Antialiasing);
138 138 baseLayout->addWidget(chart, 2, 2);
139 139 foreach (DataList list, m_dataTable) {
140 140 QScatterSeries *series = new QScatterSeries(chart);
141 141 foreach (Data data, list)
142 142 series->add(data.first);
143 143 chart->addSeries(series);
144 144 }
145 145 m_charts << chart;
146 146
147 147 setLayout(baseLayout);
148 148 }
149 149
150 150 public Q_SLOTS:
151 151
152 152 void updateTheme()
153 153 {
154 154 QChart::ChartTheme theme = (QChart::ChartTheme) m_themeComboBox->itemData(m_themeComboBox->currentIndex()).toInt();
155 155 foreach (QChartView *chart, m_charts)
156 156 chart->setChartTheme(theme);
157 157 }
158 158
159 159 private:
160 160 QList<QChartView*> m_charts;
161 161 QComboBox *m_themeComboBox;
162 162 DataTable m_dataTable;
163 163 };
164 164
165 165 int main(int argc, char *argv[])
166 166 {
167 167 QApplication a(argc, argv);
168 168
169 169 QMainWindow window;
170 170
171 171 MainWidget* widget = new MainWidget();
172 172
173 173 window.setCentralWidget(widget);
174 174 window.resize(900, 600);
175 175 window.show();
176 176
177 177 return a.exec();
178 178 }
179 179
180 180 #include "main.moc"
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