File indexing completed on 2025-09-14 03:43:32

 /*
     File                 : PresenterWidget.cpp
     Project              : LabPlot
     Description          : Widget for dynamic presenting of worksheets
     --------------------------------------------------------------------
     SPDX-FileCopyrightText: 2016 Fabian Kristof <fkristofszabolcs@gmail.com>
     SPDX-FileCopyrightText: 2018-2023 Alexander Semke <alexander.semke@web.de>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #include "PresenterWidget.h"
 #include "SlidingPanel.h"
 #include "backend/core/Settings.h"
 #include "commonfrontend/worksheet/WorksheetView.h"
 
 #include <KConfigGroup>
 #include <QKeyEvent>
 #include <QPushButton>
 #include <QScreen>
 
 PresenterWidget::PresenterWidget(Worksheet* worksheet, QScreen* screen, bool interactive, QWidget* parent)
     : QWidget(parent)
     , m_worksheet(worksheet)
     , m_view(new WorksheetView(worksheet)) {
     setAttribute(Qt::WA_DeleteOnClose);
     setFocus();
 
     m_view->setParent(this);
     m_view->setInteractive(interactive);
     m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     m_view->setContextMenuPolicy(Qt::NoContextMenu);
     m_view->initPlotNavigationActions(); // init the relevant actions so we can also navigate in the plots in the presenter mode
 
     const QRect& screenSize = screen->geometry();
     m_view->setGeometry(screenSize); // use the full screen size for the view
     m_view->show();
     m_view->setFocus();
 
     m_panel = new SlidingPanelTop(screenSize, worksheet->name(), this);
     qApp->installEventFilter(this);
     connect(m_panel->quitButton(), &QPushButton::clicked, this, [=]() {
         close();
     });
 
     if (interactive) {
         const auto group = Settings::group(QStringLiteral("PresenterWidget"));
         const auto fixed = group.readEntry("PresenterWidgetNavigationPanelFixed", false);
         m_navigationPanel = new SlidingPanelBottom(screenSize, m_view, fixed, this);
     }
 }
 
 PresenterWidget::~PresenterWidget() {
     delete m_view;
 
     // since the temporary view created in the presenter widget is using the same scene underneath,
     // the original view was also resized in the full screen mode if "view size" is used.
     // resize the original view once more to make sure it has the proper scaling after the presenter was closed.
     if (m_worksheet->useViewSize())
         static_cast<WorksheetView*>(m_worksheet->view())->processResize();
 
     if (m_navigationPanel) {
         // save current settings for the navigation panel
         auto group = Settings::group(QStringLiteral("PresenterWidget"));
         group.writeEntry("PresenterWidgetNavigationPanelFixed", m_navigationPanel->isFixed());
     }
 }
 
 bool PresenterWidget::eventFilter(QObject* /*watched*/, QEvent* event) {
     if (event->type() == QEvent::MouseMove) {
         bool visible = m_panel->y() == 0;
         const auto pos = QCursor::pos();
         if (!visible && m_panel->insideRect(pos))
             m_panel->slideShow();
         else if (visible && !m_panel->insideRect(pos))
             m_panel->slideHide();
 
         if (m_navigationPanel && !m_navigationPanel->isFixed()) {
             visible = m_navigationPanel->y() < screen()->geometry().bottom();
             if (!visible && m_navigationPanel->insideRect(pos))
                 m_navigationPanel->slideHide();
             else if (visible && !m_navigationPanel->insideRect(pos))
                 m_navigationPanel->slideShow();
         }
     }
 
     return false;
 }
 
 void PresenterWidget::keyPressEvent(QKeyEvent* event) {
     if (event->key() == Qt::Key_Escape)
         close();
 }
 
 void PresenterWidget::focusOutEvent(QFocusEvent* e) {
     if (m_view->hasFocus())
         setFocus();
 
     if (e->reason() & Qt::BacktabFocusReason)
         close();
 }