File indexing completed on 2024-05-26 03:52:44

 /*
     File                 : StatisticsDialog.cpp
     Project              : LabPlot
     Description          : Dialog showing statistics for column values
     --------------------------------------------------------------------
     SPDX-FileCopyrightText: 2016-2017 Fabian Kristof <fkristofszabolcs@gmail.com>)
     SPDX-FileCopyrightText: 2016-2021 Alexander Semke <alexander.semke@web.de>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "StatisticsDialog.h"
 #include "StatisticsColumnWidget.h"
 #include "backend/core/Settings.h"
 #include "backend/core/column/Column.h"
 #include "backend/lib/macros.h"
 
 #include <QDialogButtonBox>
 #include <QPushButton>
 #include <QTabWidget>
 #include <QTimer>
 #include <QVBoxLayout>
 #include <QWindow>
 
 #include <KLocalizedString>
 
 #include <KWindowConfig>
 
 #include <cmath>
 
 StatisticsDialog::StatisticsDialog(const QString& title, const QVector<Column*>& columns, QWidget* parent)
     : QDialog(parent)
     , m_twStatistics(new QTabWidget) {
     auto* btnBox = new QDialogButtonBox(QDialogButtonBox::Ok);
 
     QPushButton* btnOk = btnBox->button(QDialogButtonBox::Ok);
     btnOk->setFocus();
 
     connect(btnOk, &QPushButton::clicked, this, &StatisticsDialog::close);
     connect(btnBox, &QDialogButtonBox::accepted, this, &StatisticsDialog::accept);
 
     auto* layout = new QVBoxLayout;
     layout->addWidget(m_twStatistics);
     layout->addWidget(btnBox);
 
     setLayout(layout);
 
     setWindowTitle(title);
     setWindowIcon(QIcon::fromTheme(QStringLiteral("view-statistics")));
     setAttribute(Qt::WA_DeleteOnClose);
 
     m_columns = columns;
 
     // create tab widgets for every column and show the initial text with the placeholders
     for (auto* col : m_columns) {
         auto* w = new StatisticsColumnWidget(col, this);
         connect(w, &StatisticsColumnWidget::tabChanged, this, &StatisticsDialog::currentWidgetTabChanged);
         m_twStatistics->addTab(w, col->name());
     }
 
     connect(m_twStatistics, &QTabWidget::currentChanged, this, &StatisticsDialog::currentTabChanged);
 
     // restore saved settings if available
     create(); // ensure there's a window created
     KConfigGroup conf = Settings::group(QStringLiteral("StatisticsDialog"));
     if (conf.exists()) {
         KWindowConfig::restoreWindowSize(windowHandle(), conf);
         resize(windowHandle()->size()); // workaround for QTBUG-40584
     } else
         resize(QSize(490, 520));
 }
 
 StatisticsDialog::~StatisticsDialog() {
     KConfigGroup conf = Settings::group(QStringLiteral("StatisticsDialog"));
     KWindowConfig::saveWindowSize(windowHandle(), conf);
 }
 
 void StatisticsDialog::showStatistics() {
     QApplication::processEvents(QEventLoop::AllEvents, 0);
     QTimer::singleShot(0, this, [=]() {
         currentTabChanged(0);
     });
 }
 
 void StatisticsDialog::currentTabChanged(int) {
     auto* const w = static_cast<StatisticsColumnWidget*>(m_twStatistics->currentWidget());
     if (!w)
         return;
 
     w->setCurrentTab(m_currentWidgetTab);
 }
 
 /*!
  * slot called when the user switches between the different tabs in StatisticsWidget.
  * we keep the last used tab index and use it when the user navigates to a different column
  */
 void StatisticsDialog::currentWidgetTabChanged(int index) {
     m_currentWidgetTab = index;
 }