mainwidget.cpp Example File
piechartcustomization/mainwidget.cpp/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Charts module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 or (at your option) any later version ** approved by the KDE Free Qt Foundation. The licenses are as published by ** the Free Software Foundation and appearing in the file LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "mainwidget.h" #include "customslice.h" #include "pentool.h" #include "brushtool.h" #include <QtWidgets/QPushButton> #include <QtWidgets/QComboBox> #include <QtWidgets/QCheckBox> #include <QtWidgets/QLineEdit> #include <QtWidgets/QGroupBox> #include <QtWidgets/QDoubleSpinBox> #include <QtWidgets/QFormLayout> #include <QtWidgets/QFontDialog> #include <QtCharts/QChartView> #include <QtCharts/QPieSeries> QT_CHARTS_USE_NAMESPACE MainWidget::MainWidget(QWidget *parent) : QWidget(parent), m_slice(0) { // create chart QChart *chart = new QChart; chart->setTitle("Piechart customization"); chart->setAnimationOptions(QChart::AllAnimations); // create series m_series = new QPieSeries(); *m_series << new CustomSlice("Slice 1", 10.0); *m_series << new CustomSlice("Slice 2", 20.0); *m_series << new CustomSlice("Slice 3", 30.0); *m_series << new CustomSlice("Slice 4", 40.0); *m_series << new CustomSlice("Slice 5", 50.0); m_series->setLabelsVisible(); chart->addSeries(m_series); connect(m_series, SIGNAL(clicked(QPieSlice*)), this, SLOT(handleSliceClicked(QPieSlice*))); // chart settings m_themeComboBox = new QComboBox(); m_themeComboBox->addItem("Light", QChart::ChartThemeLight); m_themeComboBox->addItem("BlueCerulean", QChart::ChartThemeBlueCerulean); m_themeComboBox->addItem("Dark", QChart::ChartThemeDark); m_themeComboBox->addItem("BrownSand", QChart::ChartThemeBrownSand); m_themeComboBox->addItem("BlueNcs", QChart::ChartThemeBlueNcs); m_themeComboBox->addItem("High Contrast", QChart::ChartThemeHighContrast); m_themeComboBox->addItem("Blue Icy", QChart::ChartThemeBlueIcy); m_themeComboBox->addItem("Qt", QChart::ChartThemeQt); m_aaCheckBox = new QCheckBox(); m_animationsCheckBox = new QCheckBox(); m_animationsCheckBox->setCheckState(Qt::Checked); m_legendCheckBox = new QCheckBox(); QFormLayout *chartSettingsLayout = new QFormLayout(); chartSettingsLayout->addRow("Theme", m_themeComboBox); chartSettingsLayout->addRow("Antialiasing", m_aaCheckBox); chartSettingsLayout->addRow("Animations", m_animationsCheckBox); chartSettingsLayout->addRow("Legend", m_legendCheckBox); QGroupBox *chartSettings = new QGroupBox("Chart"); chartSettings->setLayout(chartSettingsLayout); connect(m_themeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateChartSettings())); connect(m_aaCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateChartSettings())); connect(m_animationsCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateChartSettings())); connect(m_legendCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateChartSettings())); // series settings m_hPosition = new QDoubleSpinBox(); m_hPosition->setMinimum(0.0); m_hPosition->setMaximum(1.0); m_hPosition->setSingleStep(0.1); m_hPosition->setValue(m_series->horizontalPosition()); m_vPosition = new QDoubleSpinBox(); m_vPosition->setMinimum(0.0); m_vPosition->setMaximum(1.0); m_vPosition->setSingleStep(0.1); m_vPosition->setValue(m_series->verticalPosition()); m_sizeFactor = new QDoubleSpinBox(); m_sizeFactor->setMinimum(0.0); m_sizeFactor->setMaximum(1.0); m_sizeFactor->setSingleStep(0.1); m_sizeFactor->setValue(m_series->pieSize()); m_startAngle = new QDoubleSpinBox(); m_startAngle->setMinimum(-720); m_startAngle->setMaximum(720); m_startAngle->setValue(m_series->pieStartAngle()); m_startAngle->setSingleStep(1); m_endAngle = new QDoubleSpinBox(); m_endAngle->setMinimum(-720); m_endAngle->setMaximum(720); m_endAngle->setValue(m_series->pieEndAngle()); m_endAngle->setSingleStep(1); m_holeSize = new QDoubleSpinBox(); m_holeSize->setMinimum(0.0); m_holeSize->setMaximum(1.0); m_holeSize->setSingleStep(0.1); m_holeSize->setValue(m_series->holeSize()); QPushButton *appendSlice = new QPushButton("Append slice"); QPushButton *insertSlice = new QPushButton("Insert slice"); QPushButton *removeSlice = new QPushButton("Remove selected slice"); QFormLayout *seriesSettingsLayout = new QFormLayout(); seriesSettingsLayout->addRow("Horizontal position", m_hPosition); seriesSettingsLayout->addRow("Vertical position", m_vPosition); seriesSettingsLayout->addRow("Size factor", m_sizeFactor); seriesSettingsLayout->addRow("Start angle", m_startAngle); seriesSettingsLayout->addRow("End angle", m_endAngle); seriesSettingsLayout->addRow("Hole size", m_holeSize); seriesSettingsLayout->addRow(appendSlice); seriesSettingsLayout->addRow(insertSlice); seriesSettingsLayout->addRow(removeSlice); QGroupBox *seriesSettings = new QGroupBox("Series"); seriesSettings->setLayout(seriesSettingsLayout); connect(m_vPosition, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings())); connect(m_hPosition, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings())); connect(m_sizeFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings())); connect(m_startAngle, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings())); connect(m_endAngle, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings())); connect(m_holeSize, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings())); connect(appendSlice, SIGNAL(clicked()), this, SLOT(appendSlice())); connect(insertSlice, SIGNAL(clicked()), this, SLOT(insertSlice())); connect(removeSlice, SIGNAL(clicked()), this, SLOT(removeSlice())); // slice settings m_sliceName = new QLineEdit("<click a slice>"); m_sliceName->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum); m_sliceValue = new QDoubleSpinBox(); m_sliceValue->setMaximum(1000); m_sliceLabelVisible = new QCheckBox(); m_sliceLabelArmFactor = new QDoubleSpinBox(); m_sliceLabelArmFactor->setSingleStep(0.01); m_sliceExploded = new QCheckBox(); m_sliceExplodedFactor = new QDoubleSpinBox(); m_sliceExplodedFactor->setSingleStep(0.01); m_pen = new QPushButton(); m_penTool = new PenTool("Slice pen", this); m_brush = new QPushButton(); m_brushTool = new BrushTool("Slice brush", this); m_font = new QPushButton(); m_labelBrush = new QPushButton(); m_labelBrushTool = new BrushTool("Label brush", this); m_labelPosition = new QComboBox(this); m_labelPosition->addItem("Outside", QPieSlice::LabelOutside); m_labelPosition->addItem("Inside horizontal", QPieSlice::LabelInsideHorizontal); m_labelPosition->addItem("Inside tangential", QPieSlice::LabelInsideTangential); m_labelPosition->addItem("Inside normal", QPieSlice::LabelInsideNormal); QFormLayout *sliceSettingsLayout = new QFormLayout(); sliceSettingsLayout->addRow("Label", m_sliceName); sliceSettingsLayout->addRow("Value", m_sliceValue); sliceSettingsLayout->addRow("Pen", m_pen); sliceSettingsLayout->addRow("Brush", m_brush); sliceSettingsLayout->addRow("Label visible", m_sliceLabelVisible); sliceSettingsLayout->addRow("Label font", m_font); sliceSettingsLayout->addRow("Label brush", m_labelBrush); sliceSettingsLayout->addRow("Label position", m_labelPosition); sliceSettingsLayout->addRow("Label arm length", m_sliceLabelArmFactor); sliceSettingsLayout->addRow("Exploded", m_sliceExploded); sliceSettingsLayout->addRow("Explode distance", m_sliceExplodedFactor); QGroupBox *sliceSettings = new QGroupBox("Selected slice"); sliceSettings->setLayout(sliceSettingsLayout); connect(m_sliceName, SIGNAL(textChanged(QString)), this, SLOT(updateSliceSettings())); connect(m_sliceValue, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings())); connect(m_pen, SIGNAL(clicked()), m_penTool, SLOT(show())); connect(m_penTool, SIGNAL(changed()), this, SLOT(updateSliceSettings())); connect(m_brush, SIGNAL(clicked()), m_brushTool, SLOT(show())); connect(m_brushTool, SIGNAL(changed()), this, SLOT(updateSliceSettings())); connect(m_font, SIGNAL(clicked()), this, SLOT(showFontDialog())); connect(m_labelBrush, SIGNAL(clicked()), m_labelBrushTool, SLOT(show())); connect(m_labelBrushTool, SIGNAL(changed()), this, SLOT(updateSliceSettings())); connect(m_sliceLabelVisible, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings())); connect(m_sliceLabelVisible, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings())); connect(m_sliceLabelArmFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings())); connect(m_sliceExploded, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings())); connect(m_sliceExplodedFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings())); connect(m_labelPosition, SIGNAL(currentIndexChanged(int)), this, SLOT(updateSliceSettings())); // create chart view m_chartView = new QChartView(chart); // create main layout QVBoxLayout *settingsLayout = new QVBoxLayout(); settingsLayout->addWidget(chartSettings); settingsLayout->addWidget(seriesSettings); settingsLayout->addWidget(sliceSettings); settingsLayout->addStretch(); QGridLayout *baseLayout = new QGridLayout(); baseLayout->addLayout(settingsLayout, 0, 0); baseLayout->addWidget(m_chartView, 0, 1); setLayout(baseLayout); updateSerieSettings(); updateChartSettings(); } void MainWidget::updateChartSettings() { QChart::ChartTheme theme = (QChart::ChartTheme) m_themeComboBox->itemData(m_themeComboBox->currentIndex()).toInt(); m_chartView->chart()->setTheme(theme); m_chartView->setRenderHint(QPainter::Antialiasing, m_aaCheckBox->isChecked()); if (m_animationsCheckBox->checkState() == Qt::Checked) m_chartView->chart()->setAnimationOptions(QChart::AllAnimations); else m_chartView->chart()->setAnimationOptions(QChart::NoAnimation); if (m_legendCheckBox->checkState() == Qt::Checked) m_chartView->chart()->legend()->show(); else m_chartView->chart()->legend()->hide(); } void MainWidget::updateSerieSettings() { m_series->setHorizontalPosition(m_hPosition->value()); m_series->setVerticalPosition(m_vPosition->value()); m_series->setPieSize(m_sizeFactor->value()); m_holeSize->setMaximum(m_sizeFactor->value()); m_series->setPieStartAngle(m_startAngle->value()); m_series->setPieEndAngle(m_endAngle->value()); m_series->setHoleSize(m_holeSize->value()); } void MainWidget::updateSliceSettings() { if (!m_slice) return; m_slice->setLabel(m_sliceName->text()); m_slice->setValue(m_sliceValue->value()); m_slice->setPen(m_penTool->pen()); m_slice->setBrush(m_brushTool->brush()); m_slice->setLabelBrush(m_labelBrushTool->brush()); m_slice->setLabelVisible(m_sliceLabelVisible->isChecked()); m_slice->setLabelArmLengthFactor(m_sliceLabelArmFactor->value()); m_slice->setLabelPosition((QPieSlice::LabelPosition)m_labelPosition->currentIndex()); // assumes that index is in sync with the enum m_slice->setExploded(m_sliceExploded->isChecked()); m_slice->setExplodeDistanceFactor(m_sliceExplodedFactor->value()); } void MainWidget::handleSliceClicked(QPieSlice *slice) { m_slice = static_cast<CustomSlice *>(slice); // name m_sliceName->blockSignals(true); m_sliceName->setText(slice->label()); m_sliceName->blockSignals(false); // value m_sliceValue->blockSignals(true); m_sliceValue->setValue(slice->value()); m_sliceValue->blockSignals(false); // pen m_pen->setText(PenTool::name(m_slice->pen())); m_penTool->setPen(m_slice->pen()); // brush m_brush->setText(m_slice->originalBrush().color().name()); m_brushTool->setBrush(m_slice->originalBrush()); // label m_labelBrush->setText(BrushTool::name(m_slice->labelBrush())); m_labelBrushTool->setBrush(m_slice->labelBrush()); m_font->setText(slice->labelFont().toString()); m_sliceLabelVisible->blockSignals(true); m_sliceLabelVisible->setChecked(slice->isLabelVisible()); m_sliceLabelVisible->blockSignals(false); m_sliceLabelArmFactor->blockSignals(true); m_sliceLabelArmFactor->setValue(slice->labelArmLengthFactor()); m_sliceLabelArmFactor->blockSignals(false); m_labelPosition->blockSignals(true); m_labelPosition->setCurrentIndex(slice->labelPosition()); // assumes that index is in sync with the enum m_labelPosition->blockSignals(false); // exploded m_sliceExploded->blockSignals(true); m_sliceExploded->setChecked(slice->isExploded()); m_sliceExploded->blockSignals(false); m_sliceExplodedFactor->blockSignals(true); m_sliceExplodedFactor->setValue(slice->explodeDistanceFactor()); m_sliceExplodedFactor->blockSignals(false); } void MainWidget::showFontDialog() { if (!m_slice) return; QFontDialog dialog(m_slice->labelFont()); dialog.show(); dialog.exec(); m_slice->setLabelFont(dialog.currentFont()); m_font->setText(dialog.currentFont().toString()); } void MainWidget::appendSlice() { *m_series << new CustomSlice("Slice " + QString::number(m_series->count() + 1), 10.0); } void MainWidget::insertSlice() { if (!m_slice) return; int i = m_series->slices().indexOf(m_slice); m_series->insert(i, new CustomSlice("Slice " + QString::number(m_series->count() + 1), 10.0)); } void MainWidget::removeSlice() { if (!m_slice) return; m_sliceName->setText("<click a slice>"); m_series->remove(m_slice); m_slice = 0; } #include "moc_mainwidget.cpp"