pccwidget.cpp - mozsearch

// Copyright (C) 2023 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

#include "pccbrushtool.h"

#include "pcccustomslice.h"

#include "pccwidget.h"

#include "pccpentool.h"

#include <QChartView>

#include <QCheckBox>

#include <QComboBox>

#include <QDoubleSpinBox>

#include <QFontDialog>

#include <QFormLayout>

#include <QGraphicsLayout>

#include <QGroupBox>

#include <QLineEdit>

#include <QPieSeries>

#include <QPushButton>

PccWidget::PccWidget(QWidget *parent)

    : ContentWidget(parent)

    // create chart

    auto chart = new QChart;

    chart->setTitle("Pie Chart Customization");

    chart->setAnimationOptions(QChart::AllAnimations);

    chart->layout()->setContentsMargins(0, 0, 0, 0);

    // create series

    m_series = new QPieSeries;

    *m_series << new PccCustomSlice("Slice 1", 10.0);

    *m_series << new PccCustomSlice("Slice 2", 20.0);

    *m_series << new PccCustomSlice("Slice 3", 30.0);

    *m_series << new PccCustomSlice("Slice 4", 40.0);

    *m_series << new PccCustomSlice("Slice 5", 50.0);

    m_series->setLabelsVisible();

    chart->addSeries(m_series);

    connect(m_series, &QPieSeries::clicked, this, &PccWidget::handleSliceClicked);

    // chart settings

    m_themeComboBox = new QComboBox(this);

    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(this);

    m_animationsCheckBox = new QCheckBox(this);

    m_animationsCheckBox->setCheckState(Qt::Checked);

    m_legendCheckBox = new QCheckBox(this);

    m_settingsScrollBar = new QScrollArea(this);

    auto settingsContentWidget = new QWidget(this);

    auto chartSettingsLayout = new QFormLayout(settingsContentWidget);

    chartSettingsLayout->addRow("Theme", m_themeComboBox);

    chartSettingsLayout->addRow("Antialiasing", m_aaCheckBox);

    chartSettingsLayout->addRow("Animations", m_animationsCheckBox);

    chartSettingsLayout->addRow("Legend", m_legendCheckBox);

    auto chartSettings = new QGroupBox("Chart", this);

    chartSettings->setLayout(chartSettingsLayout);

    connect(m_themeComboBox, &QComboBox::currentIndexChanged, this, &PccWidget::updateChartSettings);

    connect(m_aaCheckBox, &QCheckBox::toggled, this, &PccWidget::updateChartSettings);

    connect(m_animationsCheckBox, &QCheckBox::toggled, this, &PccWidget::updateChartSettings);

    connect(m_legendCheckBox, &QCheckBox::toggled, this, &PccWidget::updateChartSettings);

    // series settings

    m_hPosition = new QDoubleSpinBox(this);

    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(this);

    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(this);

    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(this);

    m_startAngle->setMinimum(-720);

    m_startAngle->setMaximum(720);

    m_startAngle->setValue(m_series->pieStartAngle());

    m_startAngle->setSingleStep(1);

    m_endAngle = new QDoubleSpinBox(this);

    m_endAngle->setMinimum(-720);

    m_endAngle->setMaximum(720);

    m_endAngle->setValue(m_series->pieEndAngle());

    m_endAngle->setSingleStep(1);

    m_holeSize = new QDoubleSpinBox(this);

    m_holeSize->setMinimum(0.0);

    m_holeSize->setMaximum(1.0);

    m_holeSize->setSingleStep(0.1);

    m_holeSize->setValue(m_series->holeSize());

    auto appendSlice = new QPushButton("Append slice", this);

    auto insertSlice = new QPushButton("Insert slice", this);

    auto removeSlice = new QPushButton("Remove selected slice", this);

    auto seriesSettingsLayout = new QFormLayout(settingsContentWidget);

    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);

    auto seriesSettings = new QGroupBox("Series", this);

    seriesSettings->setLayout(seriesSettingsLayout);

    connect(m_vPosition,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSerieSettings);

    connect(m_hPosition,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSerieSettings);

    connect(m_sizeFactor,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSerieSettings);

    connect(m_startAngle,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSerieSettings);

    connect(m_endAngle,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSerieSettings);

    connect(m_holeSize,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSerieSettings);

    connect(appendSlice, &QPushButton::clicked, this, &PccWidget::appendSlice);

    connect(insertSlice, &QPushButton::clicked, this, &PccWidget::insertSlice);

    connect(removeSlice, &QPushButton::clicked, this, &PccWidget::removeSlice);

    // slice settings

    m_sliceName = new QLineEdit("<click a slice>", this);

    m_sliceName->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);

    m_sliceValue = new QDoubleSpinBox(this);

    m_sliceValue->setMaximum(1000);

    m_sliceLabelVisible = new QCheckBox(this);

    m_sliceLabelArmFactor = new QDoubleSpinBox(this);

    m_sliceLabelArmFactor->setSingleStep(0.01);

    m_sliceExploded = new QCheckBox(this);

    m_sliceExplodedFactor = new QDoubleSpinBox(this);

    m_sliceExplodedFactor->setSingleStep(0.01);

    m_pen = new QPushButton(this);

    m_penTool = new PccPenTool("Slice pen", this);

    m_brush = new QPushButton(this);

    m_brushTool = new PccBrushTool("Slice brush", this);

    m_font = new QPushButton(this);

    m_labelBrush = new QPushButton(this);

    m_labelBrushTool = new PccBrushTool("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);

    auto sliceSettingsLayout = new QFormLayout(settingsContentWidget);

    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);

    auto sliceSettings = new QGroupBox("Selected slice", this);

    sliceSettings->setLayout(sliceSettingsLayout);

    sliceSettings->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);

    connect(m_sliceName, &QLineEdit::textChanged, this, &PccWidget::updateSliceSettings);

    connect(m_sliceValue,

            static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),

            this, &PccWidget::updateSliceSettings);

    connect(m_pen, &QPushButton::clicked, m_penTool, &PccPenTool::show);

    connect(m_penTool, &PccPenTool::changed, this, &PccWidget::updateSliceSettings);

    connect(m_brush, &QPushButton::clicked, m_brushTool, &PccBrushTool::show);

    connect(m_brushTool, &PccBrushTool::changed, this, &PccWidget::updateSliceSettings);

    connect(m_font, &QPushButton::clicked, this, &PccWidget::showFontDialog);

    connect(m_labelBrush, &QPushButton::clicked, m_labelBrushTool, &PccBrushTool::show);

    connect(m_labelBrushTool, &PccBrushTool::changed, this, &PccWidget::updateSliceSettings);

    connect(m_sliceLabelVisible, &QCheckBox::toggled, this, &PccWidget::updateSliceSettings);

    connect(m_sliceLabelVisible, &QCheckBox::toggled, this, &PccWidget::updateSliceSettings);

    connect(m_sliceLabelArmFactor, &QDoubleSpinBox::valueChanged,

            this, &PccWidget::updateSliceSettings);

    connect(m_sliceExploded, &QCheckBox::toggled, this, &PccWidget::updateSliceSettings);

    connect(m_sliceExplodedFactor, &QDoubleSpinBox::valueChanged,

            this, &PccWidget::updateSliceSettings);

    connect(m_labelPosition, &QComboBox::currentIndexChanged,

            this, &PccWidget::updateSliceSettings);

    // create chart view

    m_chartView = new QChartView(chart);

    // create main layout

    auto settingsLayout = new QVBoxLayout;

    settingsLayout->addWidget(chartSettings);

    settingsLayout->addWidget(seriesSettings);

    settingsLayout->addWidget(sliceSettings);

    settingsContentWidget->setLayout(settingsLayout);

    m_settingsScrollBar->setWidget(settingsContentWidget);

    m_settingsScrollBar->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    m_settingsScrollBar->setWidgetResizable(true);

    m_settingsScrollBar->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);

    m_chartView->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);

    m_baseLayout = new QGridLayout;

    m_baseLayout->addWidget(m_settingsScrollBar, 0, 0);

    m_baseLayout->addWidget(m_chartView, 1, 0);

    setLayout(m_baseLayout);

    updateSerieSettings();

    updateChartSettings();

void PccWidget::updateChartSettings()

    auto theme = static_cast<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 PccWidget::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 PccWidget::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());

    // We assume that label position index is in sync with the enum

    m_slice->setLabelPosition((QPieSlice::LabelPosition)m_labelPosition->currentIndex());

    m_slice->setExploded(m_sliceExploded->isChecked());

    m_slice->setExplodeDistanceFactor(m_sliceExplodedFactor->value());

void PccWidget::handleSliceClicked(QPieSlice *slice)

    m_slice = static_cast<PccCustomSlice *>(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(PccPenTool::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(PccBrushTool::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);

    // We assume that label position index is in sync with the enum

    m_labelPosition->setCurrentIndex(slice->labelPosition());

    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 PccWidget::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 PccWidget::appendSlice()

    *m_series << new PccCustomSlice("Slice " + QString::number(m_series->count() + 1), 10.0);

void PccWidget::insertSlice()

    if (!m_slice)

        return;

    int i = m_series->slices().indexOf(m_slice);

    m_series->insert(i, new PccCustomSlice("Slice " + QString::number(m_series->count() + 1), 10.0));

void PccWidget::removeSlice()

    if (!m_slice)

        return;

    m_sliceName->setText("<click a slice>");

    m_series->remove(m_slice);

    m_slice = 0;

void PccWidget::resizeEvent(QResizeEvent *)

    if (width() == 0 || height() == 0)

        return;

    const double aspectRatio = double(width()) / double(height());

    if ((aspectRatio < 1.0) && (m_oldAspectRatio > 1.0)) {

        m_baseLayout->removeWidget(m_chartView);

        m_baseLayout->removeWidget(m_settingsScrollBar);

        m_baseLayout->addWidget(m_chartView, 0, 0);

        m_baseLayout->addWidget(m_settingsScrollBar, 1, 0);

        m_oldAspectRatio = aspectRatio;

    } else if ((aspectRatio > 1.0) && (m_oldAspectRatio < 1.0)) {

        m_baseLayout->removeWidget(m_chartView);

        m_baseLayout->removeWidget(m_settingsScrollBar);

        m_baseLayout->addWidget(m_chartView, 0, 0);

        m_baseLayout->addWidget(m_settingsScrollBar, 0, 1);

        m_oldAspectRatio = aspectRatio;

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