##// END OF EJS Templates
Added grouped bar series to chart widget test
Tero Ahola -
r1223:0e5ab3a86184
parent child
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@@ -1,188 +1,189
1 1 /****************************************************************************
2 2 **
3 3 ** Copyright (C) 2012 Digia Plc
4 4 ** All rights reserved.
5 5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 6 **
7 7 ** This file is part of the Qt Commercial Charts Add-on.
8 8 **
9 9 ** $QT_BEGIN_LICENSE$
10 10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 11 ** accordance with the Qt Commercial License Agreement provided with the
12 12 ** Software or, alternatively, in accordance with the terms contained in
13 13 ** a written agreement between you and Digia.
14 14 **
15 15 ** If you have questions regarding the use of this file, please use
16 16 ** contact form at http://qt.digia.com
17 17 ** $QT_END_LICENSE$
18 18 **
19 19 ****************************************************************************/
20 20
21 21 #include "dataseriedialog.h"
22 22 #include <QDialogButtonBox>
23 23 #include <QGridLayout>
24 24 #include <QCheckBox>
25 25 #include <QPushButton>
26 26 #include <QGroupBox>
27 27 #include <QRadioButton>
28 28 #include <QLabel>
29 29 #include <QDebug>
30 30
31 31 DataSerieDialog::DataSerieDialog(QWidget *parent) :
32 32 QDialog(parent)
33 33 {
34 34 QDialogButtonBox *addSeriesBox = new QDialogButtonBox(Qt::Horizontal);
35 35 QPushButton *b = addSeriesBox->addButton(QDialogButtonBox::Ok);
36 36 connect(b, SIGNAL(clicked()), this, SLOT(accept()));
37 37 b = addSeriesBox->addButton(QDialogButtonBox::Cancel);
38 38 connect(b, SIGNAL(clicked()), this, SLOT(reject()));
39 39
40 40 QGridLayout *grid = new QGridLayout();
41 41
42 42 m_seriesTypeSelector = seriesTypeSelector();
43 43 m_columnCountSelector = columnCountSelector();
44 44 m_rowCountSelector = rowCountSelector();
45 45 m_dataCharacteristicsSelector = dataCharacteristicsSelector();
46 46
47 47 grid->addWidget(m_seriesTypeSelector, 0, 0);
48 48 grid->addWidget(m_columnCountSelector, 0, 1);
49 49 grid->addWidget(m_rowCountSelector, 1, 1);
50 50 grid->addWidget(m_dataCharacteristicsSelector, 1, 0);
51 51 m_labelsSelector = new QCheckBox("Labels defined");
52 52 m_labelsSelector->setChecked(true);
53 53 grid->addWidget(m_labelsSelector, 2, 0);
54 54 grid->addWidget(addSeriesBox, 3, 1);
55 55
56 56 setLayout(grid);
57 57 }
58 58
59 59 QGroupBox *DataSerieDialog::seriesTypeSelector()
60 60 {
61 61 QVBoxLayout *layout = new QVBoxLayout();
62 62
63 63 QRadioButton *line = new QRadioButton("Line");
64 64 line->setChecked(true);
65 65 layout->addWidget(line);
66 66 layout->addWidget(new QRadioButton("Area"));
67 67 layout->addWidget(new QRadioButton("Pie"));
68 68 layout->addWidget(new QRadioButton("Bar"));
69 layout->addWidget(new QRadioButton("Grouped bar"));
69 70 layout->addWidget(new QRadioButton("Stacked bar"));
70 71 layout->addWidget(new QRadioButton("Percent bar"));
71 72 layout->addWidget(new QRadioButton("Scatter"));
72 73 layout->addWidget(new QRadioButton("Spline"));
73 74
74 75 QGroupBox *groupBox = new QGroupBox("Series type");
75 76 groupBox->setLayout(layout);
76 77 selectRadio(groupBox, 0);
77 78
78 79 return groupBox;
79 80 }
80 81
81 82 QGroupBox *DataSerieDialog::columnCountSelector()
82 83 {
83 84 QVBoxLayout *layout = new QVBoxLayout();
84 85
85 86 QRadioButton *radio = new QRadioButton("1");
86 87 radio->setChecked(true);
87 88 layout->addWidget(radio);
88 89 layout->addWidget(new QRadioButton("2"));
89 90 layout->addWidget(new QRadioButton("3"));
90 91 layout->addWidget(new QRadioButton("4"));
91 92 layout->addWidget(new QRadioButton("5"));
92 93 layout->addWidget(new QRadioButton("8"));
93 94 layout->addWidget(new QRadioButton("10"));
94 95 layout->addWidget(new QRadioButton("100"));
95 96
96 97 QGroupBox *groupBox = new QGroupBox("Column count");
97 98 groupBox->setLayout(layout);
98 99 selectRadio(groupBox, 0);
99 100
100 101 return groupBox;
101 102 }
102 103
103 104 QGroupBox *DataSerieDialog::rowCountSelector()
104 105 {
105 106 QVBoxLayout *layout = new QVBoxLayout();
106 107
107 108 layout->addWidget(new QRadioButton("1"));
108 109 QRadioButton *radio = new QRadioButton("10");
109 110 radio->setChecked(true);
110 111 layout->addWidget(radio);
111 112 layout->addWidget(new QRadioButton("50"));
112 113 layout->addWidget(new QRadioButton("100"));
113 114 layout->addWidget(new QRadioButton("10000"));
114 115 layout->addWidget(new QRadioButton("100000"));
115 116 layout->addWidget(new QRadioButton("1000000"));
116 117
117 118 QGroupBox *groupBox = new QGroupBox("Row count");
118 119 groupBox->setLayout(layout);
119 120 selectRadio(groupBox, 0);
120 121
121 122 return groupBox;
122 123 }
123 124
124 125 QGroupBox *DataSerieDialog::dataCharacteristicsSelector()
125 126 {
126 127 QVBoxLayout *layout = new QVBoxLayout();
127 128
128 129 layout->addWidget(new QRadioButton("Linear"));
129 130 layout->addWidget(new QRadioButton("Constant"));
130 131 layout->addWidget(new QRadioButton("Random"));
131 132 layout->addWidget(new QRadioButton("Sin"));
132 133 layout->addWidget(new QRadioButton("Sin + random"));
133 134
134 135 QGroupBox *groupBox = new QGroupBox("Data Characteristics");
135 136 groupBox->setLayout(layout);
136 137 selectRadio(groupBox, 0);
137 138
138 139 return groupBox;
139 140 }
140 141
141 142 void DataSerieDialog::accept()
142 143 {
143 144 accepted(radioSelection(m_seriesTypeSelector),
144 145 radioSelection(m_columnCountSelector).toInt(),
145 146 radioSelection(m_rowCountSelector).toInt(),
146 147 radioSelection(m_dataCharacteristicsSelector),
147 148 m_labelsSelector->isChecked());
148 149 QDialog::accept();
149 150 }
150 151
151 152 void DataSerieDialog::selectRadio(QGroupBox *groupBox, int defaultSelection)
152 153 {
153 154 QVBoxLayout *layout = qobject_cast<QVBoxLayout *>(groupBox->layout());
154 155 Q_ASSERT(layout);
155 156 Q_ASSERT(layout->count());
156 157
157 158 QLayoutItem *item = 0;
158 159 if (defaultSelection == -1) {
159 160 item = layout->itemAt(0);
160 161 } else if (layout->count() > defaultSelection) {
161 162 item = layout->itemAt(defaultSelection);
162 163 }
163 164 Q_ASSERT(item);
164 165 QRadioButton *radio = qobject_cast<QRadioButton *>(item->widget());
165 166 Q_ASSERT(radio);
166 167 radio->setChecked(true);
167 168 }
168 169
169 170 QString DataSerieDialog::radioSelection(QGroupBox *groupBox)
170 171 {
171 172 QString selection;
172 173 QVBoxLayout *layout = qobject_cast<QVBoxLayout *>(groupBox->layout());
173 174 Q_ASSERT(layout);
174 175
175 176 for (int i(0); i < layout->count(); i++) {
176 177 QLayoutItem *item = layout->itemAt(i);
177 178 Q_ASSERT(item);
178 179 QRadioButton *radio = qobject_cast<QRadioButton *>(item->widget());
179 180 Q_ASSERT(radio);
180 181 if (radio->isChecked()) {
181 182 selection = radio->text();
182 183 break;
183 184 }
184 185 }
185 186
186 187 qDebug() << "radioSelection: " << selection;
187 188 return selection;
188 189 }
@@ -1,349 +1,354
1 1 /****************************************************************************
2 2 **
3 3 ** Copyright (C) 2012 Digia Plc
4 4 ** All rights reserved.
5 5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 6 **
7 7 ** This file is part of the Qt Commercial Charts Add-on.
8 8 **
9 9 ** $QT_BEGIN_LICENSE$
10 10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 11 ** accordance with the Qt Commercial License Agreement provided with the
12 12 ** Software or, alternatively, in accordance with the terms contained in
13 13 ** a written agreement between you and Digia.
14 14 **
15 15 ** If you have questions regarding the use of this file, please use
16 16 ** contact form at http://qt.digia.com
17 17 ** $QT_END_LICENSE$
18 18 **
19 19 ****************************************************************************/
20 20
21 21 #include "mainwidget.h"
22 22 #include "dataseriedialog.h"
23 23 #include "qchartview.h"
24 24 #include "qpieseries.h"
25 25 #include "qscatterseries.h"
26 26 #include "qlineseries.h"
27 27 #include <qareaseries.h>
28 28 #include <qsplineseries.h>
29 29 #include <qbarset.h>
30 30 #include <qbarseries.h>
31 #include <qgroupedbarseries.h>
31 32 #include <qstackedbarseries.h>
32 33 #include <qpercentbarseries.h>
33 34 #include <QPushButton>
34 35 #include <QComboBox>
35 36 #include <QSpinBox>
36 37 #include <QCheckBox>
37 38 #include <QGridLayout>
38 39 #include <QHBoxLayout>
39 40 #include <QLabel>
40 41 #include <QSpacerItem>
41 42 #include <QMessageBox>
42 43 #include <cmath>
43 44 #include <QDebug>
44 45 #include <QStandardItemModel>
45 46
46 47
47 48 QTCOMMERCIALCHART_USE_NAMESPACE
48 49
49 50 MainWidget::MainWidget(QWidget *parent) :
50 51 QWidget(parent),
51 52 m_addSerieDialog(0),
52 53 m_chart(0)
53 54 {
54 55 m_chart = new QChart();
55 56
56 57 // Grid layout for the controls for configuring the chart widget
57 58 QGridLayout *grid = new QGridLayout();
58 59 QPushButton *addSeriesButton = new QPushButton("Add series");
59 60 connect(addSeriesButton, SIGNAL(clicked()), this, SLOT(addSeries()));
60 61 grid->addWidget(addSeriesButton, 0, 1);
61 62 initBackroundCombo(grid);
62 63 initScaleControls(grid);
63 64 initThemeCombo(grid);
64 65 initCheckboxes(grid);
65 66
66 67 // add row with empty label to make all the other rows static
67 68 grid->addWidget(new QLabel(""), grid->rowCount(), 0);
68 69 grid->setRowStretch(grid->rowCount() - 1, 1);
69 70
70 71 // Create chart view with the chart
71 72 m_chartView = new QChartView(m_chart, this);
72 73 m_chartView->setRubberBand(QChartView::HorizonalRubberBand);
73 74
74 75 // Another grid layout as a main layout
75 76 QGridLayout *mainLayout = new QGridLayout();
76 77 mainLayout->addLayout(grid, 0, 0);
77 78 mainLayout->addWidget(m_chartView, 0, 1, 3, 1);
78 79 setLayout(mainLayout);
79 80 }
80 81
81 82 // Combo box for selecting the chart's background
82 83 void MainWidget::initBackroundCombo(QGridLayout *grid)
83 84 {
84 85 QComboBox *backgroundCombo = new QComboBox(this);
85 86 backgroundCombo->addItem("Color");
86 87 backgroundCombo->addItem("Gradient");
87 88 backgroundCombo->addItem("Image");
88 89 connect(backgroundCombo, SIGNAL(currentIndexChanged(int)),
89 90 this, SLOT(backgroundChanged(int)));
90 91
91 92 grid->addWidget(new QLabel("Background:"), grid->rowCount(), 0);
92 93 grid->addWidget(backgroundCombo, grid->rowCount() - 1, 1);
93 94 }
94 95
95 96 // Scale related controls (auto-scale vs. manual min-max values)
96 97 void MainWidget::initScaleControls(QGridLayout *grid)
97 98 {
98 99 m_autoScaleCheck = new QCheckBox("Automatic scaling");
99 100 connect(m_autoScaleCheck, SIGNAL(stateChanged(int)), this, SLOT(autoScaleChanged(int)));
100 101 // Allow setting also non-sense values (like -2147483648 and 2147483647)
101 102 m_xMinSpin = new QSpinBox();
102 103 m_xMinSpin->setMinimum(INT_MIN);
103 104 m_xMinSpin->setMaximum(INT_MAX);
104 105 m_xMinSpin->setValue(0);
105 106 connect(m_xMinSpin, SIGNAL(valueChanged(int)), this, SLOT(xMinChanged(int)));
106 107 m_xMaxSpin = new QSpinBox();
107 108 m_xMaxSpin->setMinimum(INT_MIN);
108 109 m_xMaxSpin->setMaximum(INT_MAX);
109 110 m_xMaxSpin->setValue(10);
110 111 connect(m_xMaxSpin, SIGNAL(valueChanged(int)), this, SLOT(xMaxChanged(int)));
111 112 m_yMinSpin = new QSpinBox();
112 113 m_yMinSpin->setMinimum(INT_MIN);
113 114 m_yMinSpin->setMaximum(INT_MAX);
114 115 m_yMinSpin->setValue(0);
115 116 connect(m_yMinSpin, SIGNAL(valueChanged(int)), this, SLOT(yMinChanged(int)));
116 117 m_yMaxSpin = new QSpinBox();
117 118 m_yMaxSpin->setMinimum(INT_MIN);
118 119 m_yMaxSpin->setMaximum(INT_MAX);
119 120 m_yMaxSpin->setValue(10);
120 121 connect(m_yMaxSpin, SIGNAL(valueChanged(int)), this, SLOT(yMaxChanged(int)));
121 122
122 123 grid->addWidget(m_autoScaleCheck, grid->rowCount(), 0);
123 124 grid->addWidget(new QLabel("x min:"), grid->rowCount(), 0);
124 125 grid->addWidget(m_xMinSpin, grid->rowCount() - 1, 1);
125 126 grid->addWidget(new QLabel("x max:"), grid->rowCount(), 0);
126 127 grid->addWidget(m_xMaxSpin, grid->rowCount() - 1, 1);
127 128 grid->addWidget(new QLabel("y min:"), grid->rowCount(), 0);
128 129 grid->addWidget(m_yMinSpin, grid->rowCount() - 1, 1);
129 130 grid->addWidget(new QLabel("y max:"), grid->rowCount(), 0);
130 131 grid->addWidget(m_yMaxSpin, grid->rowCount() - 1, 1);
131 132
132 133 m_autoScaleCheck->setChecked(true);
133 134 }
134 135
135 136 // Combo box for selecting theme
136 137 void MainWidget::initThemeCombo(QGridLayout *grid)
137 138 {
138 139 QComboBox *chartTheme = new QComboBox();
139 140 chartTheme->addItem("Default");
140 141 chartTheme->addItem("Light");
141 142 chartTheme->addItem("Blue Cerulean");
142 143 chartTheme->addItem("Dark");
143 144 chartTheme->addItem("Brown Sand");
144 145 chartTheme->addItem("Blue NCS");
145 146 chartTheme->addItem("High Contrast");
146 147 chartTheme->addItem("Blue Icy");
147 148 connect(chartTheme, SIGNAL(currentIndexChanged(int)),
148 149 this, SLOT(changeChartTheme(int)));
149 150 grid->addWidget(new QLabel("Chart theme:"), 8, 0);
150 151 grid->addWidget(chartTheme, 8, 1);
151 152 }
152 153
153 154 // Different check boxes for customizing chart
154 155 void MainWidget::initCheckboxes(QGridLayout *grid)
155 156 {
156 157 // TODO: setZoomEnabled slot has been removed from QChartView -> Re-implement zoom on/off
157 158 QCheckBox *zoomCheckBox = new QCheckBox("Drag'n drop Zoom");
158 159 // connect(zoomCheckBox, SIGNAL(toggled(bool)), m_chartView, SLOT(setZoomEnabled(bool)));
159 160 zoomCheckBox->setChecked(true);
160 161 grid->addWidget(zoomCheckBox, grid->rowCount(), 0);
161 162
162 163 QCheckBox *aliasCheckBox = new QCheckBox("Anti-alias");
163 164 connect(aliasCheckBox, SIGNAL(toggled(bool)), this, SLOT(antiAliasToggled(bool)));
164 165 aliasCheckBox->setChecked(false);
165 166 grid->addWidget(aliasCheckBox, grid->rowCount(), 0);
166 167 }
167 168
168 169 void MainWidget::antiAliasToggled(bool enabled)
169 170 {
170 171 m_chartView->setRenderHint(QPainter::Antialiasing, enabled);
171 172 }
172 173
173 174 void MainWidget::addSeries()
174 175 {
175 176 if (!m_addSerieDialog) {
176 177 m_addSerieDialog = new DataSerieDialog(this);
177 178 connect(m_addSerieDialog, SIGNAL(accepted(QString,int,int,QString,bool)),
178 179 this, SLOT(addSeries(QString,int,int,QString,bool)));
179 180 }
180 181 m_addSerieDialog->exec();
181 182 }
182 183
183 184 QList<RealList> MainWidget::generateTestData(int columnCount, int rowCount, QString dataCharacteristics)
184 185 {
185 186 // TODO: dataCharacteristics
186 187 QList<RealList> testData;
187 188 for (int j(0); j < columnCount; j++) {
188 189 QList <qreal> newColumn;
189 190 for (int i(0); i < rowCount; i++) {
190 191 if (dataCharacteristics == "Sin") {
191 192 newColumn.append(abs(sin(3.14159265358979 / 50 * i) * 100));
192 193 } else if (dataCharacteristics == "Sin + random") {
193 194 newColumn.append(abs(sin(3.14159265358979 / 50 * i) * 100) + (rand() % 5));
194 195 } else if (dataCharacteristics == "Random") {
195 196 newColumn.append(rand() % 10 + (qreal) rand() / (qreal) RAND_MAX);
196 197 } else if (dataCharacteristics == "Linear") {
197 198 //newColumn.append(i * (j + 1.0));
198 199 // TODO: temporary hack to make pie work; prevent zero values:
199 200 newColumn.append(i * (j + 1.0) + 0.1);
200 201 } else { // "constant"
201 202 newColumn.append((j + 1.0));
202 203 }
203 204 }
204 205 testData.append(newColumn);
205 206 }
206 207 return testData;
207 208 }
208 209
209 210 QStringList MainWidget::generateLabels(int count)
210 211 {
211 212 QStringList result;
212 213 for (int i(0); i < count; i++)
213 214 result.append("label" + QString::number(i));
214 215 return result;
215 216 }
216 217
217 218 void MainWidget::addSeries(QString seriesName, int columnCount, int rowCount, QString dataCharacteristics, bool labelsEnabled)
218 219 {
219 220 qDebug() << "addSeries: " << seriesName
220 221 << " columnCount: " << columnCount
221 222 << " rowCount: " << rowCount
222 223 << " dataCharacteristics: " << dataCharacteristics
223 224 << " labels enabled: " << labelsEnabled;
224 225 m_defaultSeriesName = seriesName;
225 226
226 227 QList<RealList> data = generateTestData(columnCount, rowCount, dataCharacteristics);
227 228
228 229 // Line series and scatter series use similar data
229 230 if (seriesName == "Line") {
230 231 for (int j(0); j < data.count(); j ++) {
231 232 QList<qreal> column = data.at(j);
232 233 QLineSeries *series = new QLineSeries();
233 234 series->setName("line" + QString::number(j));
234 235 for (int i(0); i < column.count(); i++)
235 236 series->append(i, column.at(i));
236 237 m_chart->addSeries(series);
237 238 }
238 239 } else if (seriesName == "Area") {
239 240 // TODO: lower series for the area?
240 241 for (int j(0); j < data.count(); j ++) {
241 242 QList<qreal> column = data.at(j);
242 243 QLineSeries *lineSeries = new QLineSeries();
243 244 for (int i(0); i < column.count(); i++)
244 245 lineSeries->append(i, column.at(i));
245 246 QAreaSeries *areaSeries = new QAreaSeries(lineSeries);
246 247 areaSeries->setName("area" + QString::number(j));
247 248 m_chart->addSeries(areaSeries);
248 249 }
249 250 } else if (seriesName == "Scatter") {
250 251 for (int j(0); j < data.count(); j++) {
251 252 QList<qreal> column = data.at(j);
252 253 QScatterSeries *series = new QScatterSeries();
253 254 series->setName("scatter" + QString::number(j));
254 255 for (int i(0); i < column.count(); i++)
255 256 series->append(i, column.at(i));
256 257 m_chart->addSeries(series);
257 258 }
258 259 } else if (seriesName == "Pie") {
259 260 QStringList labels = generateLabels(rowCount);
260 261 for (int j(0); j < data.count(); j++) {
261 262 QPieSeries *series = new QPieSeries();
262 263 QList<qreal> column = data.at(j);
263 264 for (int i(0); i < column.count(); i++)
264 265 series->append(labels.at(i), column.at(i));
265 266 m_chart->addSeries(series);
266 267 }
267 268 } else if (seriesName == "Bar"
269 || seriesName == "Grouped bar"
268 270 || seriesName == "Stacked bar"
269 271 || seriesName == "Percent bar") {
270 272 QStringList category;
271 273 QStringList labels = generateLabels(rowCount);
272 274 foreach(QString label, labels)
273 275 category << label;
274 276 QBarSeries* series = 0;
275 277 if (seriesName == "Bar") {
276 278 series = new QBarSeries(this);
277 279 series->setCategories(category);
280 } else if (seriesName == "Grouped bar") {
281 series = new QGroupedBarSeries(this);
282 series->setCategories(category);
278 283 } else if (seriesName == "Stacked bar") {
279 284 series = new QStackedBarSeries(this);
280 285 series->setCategories(category);
281 286 } else {
282 287 series = new QPercentBarSeries(this);
283 288 series->setCategories(category);
284 289 }
285 290
286 291 for (int j(0); j < data.count(); j++) {
287 292 QList<qreal> column = data.at(j);
288 293 QBarSet *set = new QBarSet("set" + QString::number(j));
289 294 for (int i(0); i < column.count(); i++)
290 295 *set << column.at(i);
291 296 series->append(set);
292 297 }
293 298
294 299 m_chart->addSeries(series);
295 300 } else if (seriesName == "Spline") {
296 301 for (int j(0); j < data.count(); j ++) {
297 302 QList<qreal> column = data.at(j);
298 303 QSplineSeries *series = new QSplineSeries();
299 304 for (int i(0); i < column.count(); i++)
300 305 series->append(i, column.at(i));
301 306 m_chart->addSeries(series);
302 307 }
303 308 }
304 309 }
305 310
306 311 void MainWidget::backgroundChanged(int itemIndex)
307 312 {
308 313 qDebug() << "backgroundChanged: " << itemIndex;
309 314 }
310 315
311 316 void MainWidget::autoScaleChanged(int value)
312 317 {
313 318 if (value) {
314 319 // TODO: enable auto scaling
315 320 } else {
316 321 // TODO: set scaling manually (and disable auto scaling)
317 322 }
318 323
319 324 m_xMinSpin->setEnabled(!value);
320 325 m_xMaxSpin->setEnabled(!value);
321 326 m_yMinSpin->setEnabled(!value);
322 327 m_yMaxSpin->setEnabled(!value);
323 328 }
324 329
325 330 void MainWidget::xMinChanged(int value)
326 331 {
327 332 qDebug() << "xMinChanged: " << value;
328 333 }
329 334
330 335 void MainWidget::xMaxChanged(int value)
331 336 {
332 337 qDebug() << "xMaxChanged: " << value;
333 338 }
334 339
335 340 void MainWidget::yMinChanged(int value)
336 341 {
337 342 qDebug() << "yMinChanged: " << value;
338 343 }
339 344
340 345 void MainWidget::yMaxChanged(int value)
341 346 {
342 347 qDebug() << "yMaxChanged: " << value;
343 348 }
344 349
345 350 void MainWidget::changeChartTheme(int themeIndex)
346 351 {
347 352 qDebug() << "changeChartTheme: " << themeIndex;
348 353 m_chart->setTheme((QChart::ChartTheme) themeIndex);
349 354 }
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