mainwidget.cpp
378 lines
| 13.4 KiB
| text/x-c
|
CppLexer
Miikka Heikkinen
|
r2734 | /**************************************************************************** | ||
| ** | ||||
Titta Heikkala
|
r2776 | ** Copyright (C) 2015 The Qt Company Ltd | ||
|
Miikka Heikkinen
|
r2734 | ** All rights reserved. | ||
|
Titta Heikkala
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r2776 | ** For any questions to The Qt Company, please use contact form at http://qt.io | ||
|
Miikka Heikkinen
|
r2734 | ** | ||
|
Titta Heikkala
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r2740 | ** This file is part of the Qt Charts module. | ||
|
Miikka Heikkinen
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r2734 | ** | ||
|
Titta Heikkala
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r2740 | ** 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 | ||||
|
Titta Heikkala
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r2776 | ** agreement between you and The Qt Company. | ||
|
Miikka Heikkinen
|
r2734 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
|
Titta Heikkala
|
r2740 | ** contact form at http://qt.io | ||
|
Miikka Heikkinen
|
r2734 | ** | ||
| ****************************************************************************/ | ||||
| #include "mainwidget.h" | ||||
| #include "dataseriedialog.h" | ||||
| #include <QtCharts/QChartView> | ||||
| #include <QtCharts/QPieSeries> | ||||
| #include <QtCharts/QScatterSeries> | ||||
| #include <QtCharts/QLineSeries> | ||||
| #include <QtCharts/QAreaSeries> | ||||
| #include <QtCharts/QSplineSeries> | ||||
| #include <QtCharts/QBarSet> | ||||
| #include <QtCharts/QBarSeries> | ||||
| #include <QtCharts/QStackedBarSeries> | ||||
| #include <QtCharts/QPercentBarSeries> | ||||
| #include <QtWidgets/QPushButton> | ||||
| #include <QtWidgets/QComboBox> | ||||
| #include <QtWidgets/QSpinBox> | ||||
| #include <QtWidgets/QCheckBox> | ||||
| #include <QtWidgets/QGridLayout> | ||||
| #include <QtWidgets/QHBoxLayout> | ||||
| #include <QtWidgets/QLabel> | ||||
| #include <QtWidgets/QSpacerItem> | ||||
| #include <QtWidgets/QMessageBox> | ||||
| #include <cmath> | ||||
| #include <QtCore/QDebug> | ||||
| #include <QtGui/QStandardItemModel> | ||||
| #include <QtCharts/QBarCategoryAxis> | ||||
| #include <QtOpenGL/QGLWidget> | ||||
| QT_CHARTS_USE_NAMESPACE | ||||
| MainWidget::MainWidget(QWidget *parent) : | ||||
| QWidget(parent), | ||||
| m_addSerieDialog(0), | ||||
| m_chart(0) | ||||
| { | ||||
| m_chart = new QChart(); | ||||
| // Grid layout for the controls for configuring the chart widget | ||||
| QGridLayout *grid = new QGridLayout(); | ||||
| QPushButton *addSeriesButton = new QPushButton("Add series"); | ||||
| connect(addSeriesButton, SIGNAL(clicked()), this, SLOT(addSeries())); | ||||
| grid->addWidget(addSeriesButton, 0, 1); | ||||
| initBackroundCombo(grid); | ||||
| initScaleControls(grid); | ||||
| initThemeCombo(grid); | ||||
| initCheckboxes(grid); | ||||
| // add row with empty label to make all the other rows static | ||||
| grid->addWidget(new QLabel(""), grid->rowCount(), 0); | ||||
| grid->setRowStretch(grid->rowCount() - 1, 1); | ||||
| // Create chart view with the chart | ||||
| m_chartView = new QChartView(m_chart, this); | ||||
|
Miikka Heikkinen
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r2742 | m_chartView->setRubberBand(QChartView::HorizontalRubberBand); | ||
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Miikka Heikkinen
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r2734 | |||
| // Another grid layout as a main layout | ||||
| QGridLayout *mainLayout = new QGridLayout(); | ||||
| mainLayout->addLayout(grid, 0, 0); | ||||
| mainLayout->addWidget(m_chartView, 0, 1, 3, 1); | ||||
| setLayout(mainLayout); | ||||
| } | ||||
| // Combo box for selecting the chart's background | ||||
| void MainWidget::initBackroundCombo(QGridLayout *grid) | ||||
| { | ||||
| QComboBox *backgroundCombo = new QComboBox(this); | ||||
| backgroundCombo->addItem("Color"); | ||||
| backgroundCombo->addItem("Gradient"); | ||||
| backgroundCombo->addItem("Image"); | ||||
| connect(backgroundCombo, SIGNAL(currentIndexChanged(int)), | ||||
| this, SLOT(backgroundChanged(int))); | ||||
| grid->addWidget(new QLabel("Background:"), grid->rowCount(), 0); | ||||
| grid->addWidget(backgroundCombo, grid->rowCount() - 1, 1); | ||||
| } | ||||
| // Scale related controls (auto-scale vs. manual min-max values) | ||||
| void MainWidget::initScaleControls(QGridLayout *grid) | ||||
| { | ||||
| m_autoScaleCheck = new QCheckBox("Automatic scaling"); | ||||
| connect(m_autoScaleCheck, SIGNAL(stateChanged(int)), this, SLOT(autoScaleChanged(int))); | ||||
| // Allow setting also non-sense values (like -2147483648 and 2147483647) | ||||
| m_xMinSpin = new QSpinBox(); | ||||
| m_xMinSpin->setMinimum(INT_MIN); | ||||
| m_xMinSpin->setMaximum(INT_MAX); | ||||
| m_xMinSpin->setValue(0); | ||||
| connect(m_xMinSpin, SIGNAL(valueChanged(int)), this, SLOT(xMinChanged(int))); | ||||
| m_xMaxSpin = new QSpinBox(); | ||||
| m_xMaxSpin->setMinimum(INT_MIN); | ||||
| m_xMaxSpin->setMaximum(INT_MAX); | ||||
| m_xMaxSpin->setValue(10); | ||||
| connect(m_xMaxSpin, SIGNAL(valueChanged(int)), this, SLOT(xMaxChanged(int))); | ||||
| m_yMinSpin = new QSpinBox(); | ||||
| m_yMinSpin->setMinimum(INT_MIN); | ||||
| m_yMinSpin->setMaximum(INT_MAX); | ||||
| m_yMinSpin->setValue(0); | ||||
| connect(m_yMinSpin, SIGNAL(valueChanged(int)), this, SLOT(yMinChanged(int))); | ||||
| m_yMaxSpin = new QSpinBox(); | ||||
| m_yMaxSpin->setMinimum(INT_MIN); | ||||
| m_yMaxSpin->setMaximum(INT_MAX); | ||||
| m_yMaxSpin->setValue(10); | ||||
| connect(m_yMaxSpin, SIGNAL(valueChanged(int)), this, SLOT(yMaxChanged(int))); | ||||
| grid->addWidget(m_autoScaleCheck, grid->rowCount(), 0); | ||||
| grid->addWidget(new QLabel("x min:"), grid->rowCount(), 0); | ||||
| grid->addWidget(m_xMinSpin, grid->rowCount() - 1, 1); | ||||
| grid->addWidget(new QLabel("x max:"), grid->rowCount(), 0); | ||||
| grid->addWidget(m_xMaxSpin, grid->rowCount() - 1, 1); | ||||
| grid->addWidget(new QLabel("y min:"), grid->rowCount(), 0); | ||||
| grid->addWidget(m_yMinSpin, grid->rowCount() - 1, 1); | ||||
| grid->addWidget(new QLabel("y max:"), grid->rowCount(), 0); | ||||
| grid->addWidget(m_yMaxSpin, grid->rowCount() - 1, 1); | ||||
| m_autoScaleCheck->setChecked(true); | ||||
| } | ||||
| // Combo box for selecting theme | ||||
| void MainWidget::initThemeCombo(QGridLayout *grid) | ||||
| { | ||||
| QComboBox *chartTheme = new QComboBox(); | ||||
| chartTheme->addItem("Default"); | ||||
| chartTheme->addItem("Light"); | ||||
| chartTheme->addItem("Blue Cerulean"); | ||||
| chartTheme->addItem("Dark"); | ||||
| chartTheme->addItem("Brown Sand"); | ||||
| chartTheme->addItem("Blue NCS"); | ||||
| chartTheme->addItem("High Contrast"); | ||||
| chartTheme->addItem("Blue Icy"); | ||||
| chartTheme->addItem("Qt"); | ||||
| connect(chartTheme, SIGNAL(currentIndexChanged(int)), | ||||
| this, SLOT(changeChartTheme(int))); | ||||
| grid->addWidget(new QLabel("Chart theme:"), 8, 0); | ||||
| grid->addWidget(chartTheme, 8, 1); | ||||
| } | ||||
| // Different check boxes for customizing chart | ||||
| void MainWidget::initCheckboxes(QGridLayout *grid) | ||||
| { | ||||
| // TODO: setZoomEnabled slot has been removed from QChartView -> Re-implement zoom on/off | ||||
| QCheckBox *zoomCheckBox = new QCheckBox("Drag'n drop Zoom"); | ||||
| // connect(zoomCheckBox, SIGNAL(toggled(bool)), m_chartView, SLOT(setZoomEnabled(bool))); | ||||
| zoomCheckBox->setChecked(true); | ||||
| grid->addWidget(zoomCheckBox, grid->rowCount(), 0); | ||||
| QCheckBox *aliasCheckBox = new QCheckBox("Anti-alias"); | ||||
| connect(aliasCheckBox, SIGNAL(toggled(bool)), this, SLOT(antiAliasToggled(bool))); | ||||
| aliasCheckBox->setChecked(false); | ||||
| grid->addWidget(aliasCheckBox, grid->rowCount(), 0); | ||||
| QCheckBox *openGLCheckBox = new QCheckBox("Use QGLWidget"); | ||||
| connect(openGLCheckBox, SIGNAL(toggled(bool)), this, SLOT(openGLToggled(bool))); | ||||
| openGLCheckBox->setChecked(false); | ||||
| grid->addWidget(openGLCheckBox, grid->rowCount(), 0); | ||||
| } | ||||
| void MainWidget::antiAliasToggled(bool enabled) | ||||
| { | ||||
| m_chartView->setRenderHint(QPainter::Antialiasing, enabled); | ||||
| } | ||||
| void MainWidget::openGLToggled(bool enabled) | ||||
| { | ||||
| if (enabled) { | ||||
| QGLFormat f = QGLFormat::defaultFormat(); | ||||
| f.setSampleBuffers(true); | ||||
| f.setSamples(4); | ||||
| QGLFormat::setDefaultFormat(f); | ||||
| QGLWidget *g = new QGLWidget(); | ||||
| m_chartView->setViewport(g); | ||||
| } else { | ||||
| m_chartView->setViewport(0); | ||||
| } | ||||
| } | ||||
| void MainWidget::addSeries() | ||||
| { | ||||
| if (!m_addSerieDialog) { | ||||
| m_addSerieDialog = new DataSerieDialog(this); | ||||
| connect(m_addSerieDialog, SIGNAL(accepted(QString,int,int,QString,bool)), | ||||
| this, SLOT(addSeries(QString,int,int,QString,bool))); | ||||
| } | ||||
| m_addSerieDialog->exec(); | ||||
| } | ||||
| QList<RealList> MainWidget::generateTestData(int columnCount, int rowCount, QString dataCharacteristics) | ||||
| { | ||||
| QList<RealList> testData; | ||||
| for (int j(0); j < columnCount; j++) { | ||||
| QList <qreal> newColumn; | ||||
| for (int i(0); i < rowCount; i++) { | ||||
| if (dataCharacteristics == "Sin") { | ||||
| newColumn.append(abs(sin(3.14159265358979 / 50 * i) * 100)); | ||||
| } else if (dataCharacteristics == "Sin + random") { | ||||
| newColumn.append(abs(sin(3.14159265358979 / 50 * i) * 100) + (rand() % 5)); | ||||
| } else if (dataCharacteristics == "Random") { | ||||
| newColumn.append(rand() % 10 + (qreal) rand() / (qreal) RAND_MAX); | ||||
| } else if (dataCharacteristics == "Linear") { | ||||
| //newColumn.append(i * (j + 1.0)); | ||||
| // TODO: temporary hack to make pie work; prevent zero values: | ||||
| newColumn.append(i * (j + 1.0) + 0.1); | ||||
| } else { // "constant" | ||||
| newColumn.append((j + 1.0)); | ||||
| } | ||||
| } | ||||
| testData.append(newColumn); | ||||
| } | ||||
| return testData; | ||||
| } | ||||
| QStringList MainWidget::generateLabels(int count) | ||||
| { | ||||
| QStringList result; | ||||
| for (int i(0); i < count; i++) | ||||
| result.append("label" + QString::number(i)); | ||||
| return result; | ||||
| } | ||||
| void MainWidget::addSeries(QString seriesName, int columnCount, int rowCount, QString dataCharacteristics, bool labelsEnabled) | ||||
| { | ||||
| qDebug() << "addSeries: " << seriesName | ||||
| << " columnCount: " << columnCount | ||||
| << " rowCount: " << rowCount | ||||
| << " dataCharacteristics: " << dataCharacteristics | ||||
| << " labels enabled: " << labelsEnabled; | ||||
| m_defaultSeriesName = seriesName; | ||||
| QList<RealList> data = generateTestData(columnCount, rowCount, dataCharacteristics); | ||||
| // Line series and scatter series use similar data | ||||
| if (seriesName == "Line") { | ||||
| for (int j(0); j < data.count(); j ++) { | ||||
| QList<qreal> column = data.at(j); | ||||
| QLineSeries *series = new QLineSeries(); | ||||
| series->setName("line" + QString::number(j)); | ||||
| for (int i(0); i < column.count(); i++) | ||||
| series->append(i, column.at(i)); | ||||
| m_chart->addSeries(series); | ||||
| } | ||||
| } else if (seriesName == "Area") { | ||||
| // TODO: lower series for the area? | ||||
| for (int j(0); j < data.count(); j ++) { | ||||
| QList<qreal> column = data.at(j); | ||||
| QLineSeries *lineSeries = new QLineSeries(); | ||||
| for (int i(0); i < column.count(); i++) | ||||
| lineSeries->append(i, column.at(i)); | ||||
| QAreaSeries *areaSeries = new QAreaSeries(lineSeries); | ||||
| areaSeries->setName("area" + QString::number(j)); | ||||
| m_chart->addSeries(areaSeries); | ||||
| } | ||||
| } else if (seriesName == "Scatter") { | ||||
| for (int j(0); j < data.count(); j++) { | ||||
| QList<qreal> column = data.at(j); | ||||
| QScatterSeries *series = new QScatterSeries(); | ||||
| series->setName("scatter" + QString::number(j)); | ||||
| for (int i(0); i < column.count(); i++) | ||||
| series->append(i, column.at(i)); | ||||
| m_chart->addSeries(series); | ||||
| } | ||||
| } else if (seriesName == "Pie") { | ||||
| QStringList labels = generateLabels(rowCount); | ||||
| for (int j(0); j < data.count(); j++) { | ||||
| QPieSeries *series = new QPieSeries(); | ||||
| QList<qreal> column = data.at(j); | ||||
| for (int i(0); i < column.count(); i++) | ||||
| series->append(labels.at(i), column.at(i)); | ||||
| m_chart->addSeries(series); | ||||
| } | ||||
| } else if (seriesName == "Bar" | ||||
| || seriesName == "Stacked bar" | ||||
| || seriesName == "Percent bar") { | ||||
| QStringList category; | ||||
| QStringList labels = generateLabels(rowCount); | ||||
| foreach (QString label, labels) | ||||
| category << label; | ||||
| QAbstractBarSeries* series = 0; | ||||
| if (seriesName == "Bar") { | ||||
| series = new QBarSeries(this); | ||||
| QBarCategoryAxis* axis = new QBarCategoryAxis(); | ||||
| axis->append(category); | ||||
| m_chart->setAxisX(axis,series); | ||||
| } else if (seriesName == "Stacked bar") { | ||||
| series = new QStackedBarSeries(this); | ||||
| QBarCategoryAxis* axis = new QBarCategoryAxis(); | ||||
| axis->append(category); | ||||
| m_chart->setAxisX(axis,series); | ||||
| } else { | ||||
| series = new QPercentBarSeries(this); | ||||
| QBarCategoryAxis* axis = new QBarCategoryAxis(); | ||||
| axis->append(category); | ||||
| m_chart->setAxisX(axis,series); | ||||
| } | ||||
| for (int j(0); j < data.count(); j++) { | ||||
| QList<qreal> column = data.at(j); | ||||
| QBarSet *set = new QBarSet("set" + QString::number(j)); | ||||
| for (int i(0); i < column.count(); i++) | ||||
| *set << column.at(i); | ||||
| series->append(set); | ||||
| } | ||||
| m_chart->addSeries(series); | ||||
| } else if (seriesName == "Spline") { | ||||
| for (int j(0); j < data.count(); j ++) { | ||||
| QList<qreal> column = data.at(j); | ||||
| QSplineSeries *series = new QSplineSeries(); | ||||
| series->setName("spline" + QString::number(j)); | ||||
| for (int i(0); i < column.count(); i++) | ||||
| series->append(i, column.at(i)); | ||||
| m_chart->addSeries(series); | ||||
| } | ||||
| } | ||||
| m_chart->createDefaultAxes(); | ||||
| } | ||||
| void MainWidget::backgroundChanged(int itemIndex) | ||||
| { | ||||
| qDebug() << "backgroundChanged: " << itemIndex; | ||||
| } | ||||
| void MainWidget::autoScaleChanged(int value) | ||||
| { | ||||
| if (value) { | ||||
| // TODO: enable auto scaling | ||||
| } else { | ||||
| // TODO: set scaling manually (and disable auto scaling) | ||||
| } | ||||
| m_xMinSpin->setEnabled(!value); | ||||
| m_xMaxSpin->setEnabled(!value); | ||||
| m_yMinSpin->setEnabled(!value); | ||||
| m_yMaxSpin->setEnabled(!value); | ||||
| } | ||||
| void MainWidget::xMinChanged(int value) | ||||
| { | ||||
| qDebug() << "xMinChanged: " << value; | ||||
| } | ||||
| void MainWidget::xMaxChanged(int value) | ||||
| { | ||||
| qDebug() << "xMaxChanged: " << value; | ||||
| } | ||||
| void MainWidget::yMinChanged(int value) | ||||
| { | ||||
| qDebug() << "yMinChanged: " << value; | ||||
| } | ||||
| void MainWidget::yMaxChanged(int value) | ||||
| { | ||||
| qDebug() << "yMaxChanged: " << value; | ||||
| } | ||||
| void MainWidget::changeChartTheme(int themeIndex) | ||||
| { | ||||
| qDebug() << "changeChartTheme: " << themeIndex; | ||||
| if (themeIndex == 0) | ||||
| m_chart->setTheme(QChart::ChartThemeLight); | ||||
| else | ||||
| m_chart->setTheme((QChart::ChartTheme) (themeIndex - 1)); | ||||
| } | ||||